Objective:To explore the potential therapeutic impact of an alcoholic extract derived from the sea cucumber(Holothuria parva)on letrozole-induced polycystic ovary syndrome(PCOS)in adult female Sprague-Dawley rats.Meth...Objective:To explore the potential therapeutic impact of an alcoholic extract derived from the sea cucumber(Holothuria parva)on letrozole-induced polycystic ovary syndrome(PCOS)in adult female Sprague-Dawley rats.Methods:Sixteen female rats,aged 8 to 10 weeks,with a mean weight of(200±20)g,were randomly assigned to four groups:the control,PCOS,and two treatment groups receiving sea cucumber extract and metformin,respectively.PCOS was induced by administering letrozole at a dose of 1 mg/kg to initiate the treatment period at 60 days of age.The study spanned four weeks,during which ovarian and uterine tissues were collected for histological examination,and blood samples were collected for hormonal levels.Results:Significant decreases in luteinizing hormone/follicle stimulating hormone(LH/FSH)and testosterone and increases progesterone levels among groups treated with sea cucumber extract were observed.While no significant differences were observed in follicle-stimulating hormone(FSH)and testosterone levels,the distinctive variations in key hormones suggested a potential role for sea cucumber alcoholic extract in ameliorating PCOS symptoms.Conclusions:This research highlights the moderate efficacy of sea cucumber extract as a therapeutic intervention for PCOS,providing a novel perspective in the search for effective remedies.The observed hormonal alterations,particularly in LH,estradiol,and progesterone,underscore the need for further exploration into the underlying mechanisms and for optimizing the application of sea cucumber extract in PCOS management.展开更多
Objective:To investigate the potential activity of protocatechuic acid in female Wistar rats with letrozole-induced polycystic ovary syndrome(PCOS).Methods:Thirty rats were divided into five groups of six each.Group 1...Objective:To investigate the potential activity of protocatechuic acid in female Wistar rats with letrozole-induced polycystic ovary syndrome(PCOS).Methods:Thirty rats were divided into five groups of six each.Group 1 received 0.5%carboxy methyl cellulose orally and served as the normal control group;group 2 was treated orally with 1 mg/kg of letrozole daily for 21 days and served as the PCOS induced group;group 3 was orally administered with letrozole of 1 mg/kg for 21 days and further administered with standard drug of clomiphene citrate at a dose of 1 mg/kg body weight in 0.5%carboxy methyl cellulose per oral and served as the standard group;groups 4 and 5 were administered with letrozole of 1 mg/kg for 21 days and further treated with protocatechuic acid orally at low dose of 5 mg/kg body weight and high dose of 15 mg/kg body weight respectively for 15 days.At the end of the study period,rats were subjected for the estimation of invasive blood pressure and heart rate,biochemical estimations and antioxidant assay.In addition,ovarian histomorphology was examined.Results:The PCOS was confirmed in the letrozole induced rats with increased concentration of androgen,abnormal lipid levels,glucose,glycosylated haemoglobin and also depletion of antioxidants.After protocatechuic acid treatment,the increased levels of testosterone due to induction of PCOS were restored to normal levels.Additionally,there was a consistent decrease in luteinizing hormone and follicle stimulating hormone levels in the treatment groups,followed by decrease in the number of cysts after treatment with protocatechuic acid.Histopathological observations showed a remarkable recovery of the ovarian tissue and the presence of normalized structure of antral follicle.Protocatechuic acid treatment restored all the parameters to normalcy and abolished cysts formation in ovaries of female rats.Conclusions:Protocatechuic acid shows potential protective effects in letrozole-induced PCOS rats.The protective effect is comparable to that of clomiphene citrate and thus shows its potential in the treatment of PCOS.展开更多
Background:Polycystic ovary syndrome(PCOS)is an endocrine disorder that occurs in women of child-bearing age.Moreover,PCOS patients have decreased pregnancy rates and clomiphene citrate resistance.The traditional Chin...Background:Polycystic ovary syndrome(PCOS)is an endocrine disorder that occurs in women of child-bearing age.Moreover,PCOS patients have decreased pregnancy rates and clomiphene citrate resistance.The traditional Chinese medicine formula Kun-Tai-1S(KT1S),consisting of the seahorse species hippocampus,has been reported to elicit therapeutic effects in patients with PCOS.However,given the limited resources and global demand for wild hippocampus,whether KT1S with or without hippocampus can elicit similar therapeutic effects has not been confirmed.Methods:KT1S and Kun-Tai-1A(KT1A,KT1S without dry hippocampus)were used to treat a letrozole-induced rat model of PCOS with an established disease.The serum levels of testosterone,luteinizing hormone,anti-Müllerian hormone,and estradiol were determined,the luteinizing hormone/follicle-stimulating hormone ratio was determined,and the ovarian pathology was evaluated.Results:Similar to the therapeutic effects of cyproterone acetate,both the KT1S and KT1A treatments reduced the body weight and ovarian and uterine indices in the rats with PCOS.The serum levels of testosterone,anti-Müllerian hormone,and luteinizing hormone and the luteinizing hormone/follicle-stimulating hormone ratio were significantly lower in the KT1S and KT1A treatment groups compared to the model group(P<0.01 and P<0.05,respectively).Moreover,the histopathological assessment results suggested that both the KT1S and KT1A treatments significantly ameliorated the PCOS pathology in the rats with an established disease,with a reduced number of cystic and atretic follicles and an increased number of corpora lutea being observed in the ovaries.Notably,there was no obvious difference in the disease outcomes between the KT1S and KT1A-treated groups.Network pharmacology analysis revealed that 4’,7-dihydroxyflavanone,sinpemine A,quercetin,8-isopentenyl-kaempferol,and luteolin in KT1A may promote estrogen signaling;furthermore,the nitric oxide regulation pathway is also closely involved.Conclusion:KT1A and KT1S treatments both significantly ameliorated the PCOS-related pathology in rats,suggesting that the hippocampus component is dispensable for KT1S-mediated amelioration.Given the limited resources and global demand for wild hippocampus for use in complementary medicines,our findings may help conserve this species.Together,our results suggest that KT1A is a promising approach for treating PCOS.展开更多
Polycystic ovary syndrome(PCOS)is a reproductive endocrine disease characterized by ovulation disorder,hyperandrogenism and/or polycystic ovary.Follicular development disorder caused by PCOS accounts for up to 75%of a...Polycystic ovary syndrome(PCOS)is a reproductive endocrine disease characterized by ovulation disorder,hyperandrogenism and/or polycystic ovary.Follicular development disorder caused by PCOS accounts for up to 75%of anovulatory infertility,which is a common cause of infertility and affects up to 15%of reproductive aged women worldwide.Oxidative stress,chronic inflammation,endoplasmic reticulum stress and other pathological conditions coexist in the ovarian microenvironment of PCOS,which are further aggravated under the action of high levels of androgens,synergistically deteriorating the follicular microenvironment,leading to ovulation disorders in PCOS patients.This paper briefly reviewed the research on the mechanism of PCOS ovulation disorder in recent years.展开更多
Background: The purpose of this study was to compare the effectiveness of Letrozole versus Clomiphene citrate for ovulation induction in polycystic ovarian syndrome (PCOS) with infertility. Methods: This was a prospec...Background: The purpose of this study was to compare the effectiveness of Letrozole versus Clomiphene citrate for ovulation induction in polycystic ovarian syndrome (PCOS) with infertility. Methods: This was a prospective randomized trial involving 150 women with PCOS attending the Infertility Clinic at three hospitals in Malaysia. During the initial visit, anthropometric measurements and baseline investigations were performed. Patients were randomized to 5.0 mg Letrozole daily (75 patients) or 100 mg Clomiphene citrate daily (75 patients) from the fifth until the ninth day of menstruation. Serial transvaginal scans were performed to see the dominant follicles, endometrial thickness and number of follicles. Transvaginal scans were performed serially to look for evidence of ovulation. Results: The subjects were homogenously distributed. The difference between Letrozole and Clomiphene citrate for ovulation rate was 59 (78.7%) versus 40 (53.3%). Patients taking Letrozole exhibited a mean endometrial thickness (ET) at mid cycle of menses (Day 11-D14) of9.2 mm(SD ± 2.3) versus8.4 mm(SD ± 2.2) for patients taking Clomiphene citrate, and these differences were statistically significant展开更多
Background: Polycystic ovary syndrome (PCOS) is a common cause of anovulatory infertility. The therapeutic strategies for clomiphene citrate (CC)- resistant patients include the addition of corticosteroids, extended d...Background: Polycystic ovary syndrome (PCOS) is a common cause of anovulatory infertility. The therapeutic strategies for clomiphene citrate (CC)- resistant patients include the addition of corticosteroids, extended duration of clomiphene, gonadotrophin therapy, laparoscopic ovarian drilling, in vitro fertilization or the use of aromatase inhibitors recently. Letrozole decreases estrogen levels in the body, so it releases the hypothalamus and/or pituitary gland from the negative feedback of estrogen. This increases levels of gonadotrophins, which stimulates follicular growth. Objectives: To evaluate the role of letrozole alone and simultaneous use of letrozole and clomiphene citrate (CC) for ovulation induction in patients with clomiphene citrate-resistant PCOS (CCR-PCOS). Patients and Methods: This open-label randomised controlled study was conducted in the Department of Obstetrics and Gynecology, Faculty of Medicine, Zagazig University, Egypt during the period from February 2018 to June 2019. The study included 60 CCR-PCOS patients who were randomly allocated by independent personnel into two arms: group A (letrozole alone) or B (letrozole + CC). In either group, monitoring the mean follicular diameter and endometrial thickness in the days 10, 12, and 14 of the cycle by transvaginal ultrasound and Measurement of serum Progesterone (ng/ml) 7 days after the expected time of ovulation. Results: We investigated various clinical and sonographic factors that may predict the outcome of the method of induction of ovulation in CCR-PCOS with no significant affection for the results. There was a non-significant difference between the studied groups regarding ovulation and pregnancy per cycle or per patient. Conclusion: Letrozole alone or simultaneous use of letrozole and CC offers a good second-line option for induction of ovulation in CCR-PCOS patients. However, the combination of CC and letrozole did not add any benefit over the use of letrozole alone regards ovulation rate, follicular volume, endometrial thickness, pregnancy rate and live birth rate.展开更多
Objective: To observe the therapeutic effect of combined traditional Chinese medicine (TCM) therapy with acupoint injection and herbal patch application on patients with ovulatory dysfunction associated with polycysti...Objective: To observe the therapeutic effect of combined traditional Chinese medicine (TCM) therapy with acupoint injection and herbal patch application on patients with ovulatory dysfunction associated with polycystic ovary syndrome (PCOS). Methods: A total of 80 PCOS patients who received treatment at the First Affiliated Hospital of Guangxi University of Chinese Medicine between October 2022 and March 2024 were enrolled in this study. They were randomly divided into a control group (n = 40) and an observation group (n = 40). The control group received conventional Western medical treatments, while the observation group was administered TCM combined with acupoint injection and herbal patch application. Pre- and post-treatment conditions were compared between the two groups. Results: After treatment, the overall effective rate was significantly higher in the observation group compared to the control group (P 0.05). Following treatment, both ovulation and pregnancy rates increased in both groups, but the increase was more evident in the observation group, showing a statistically significant difference (P < 0.01). Conclusion: For patients with oligoovulation or anovulation due to PCOS, the combined use of TCM, acupoint injection, and herbal patch application appears to be effective in improving systemic symptoms and achieving notable clinical outcomes.展开更多
Polycystic ovary syndrome(PCOS)is the most common endocrine and metabolic disease in women of reproductive age.PCOS is characterized by ovulatory disruption,which can lead to infertility.Patients with PCOS are also mo...Polycystic ovary syndrome(PCOS)is the most common endocrine and metabolic disease in women of reproductive age.PCOS is characterized by ovulatory disruption,which can lead to infertility.Patients with PCOS are also more likely to have poor pregnancy outcomes.For obese women,lifestyle interventions are recommended first,which have general health benefits.For women who have difficulty changing their lifestyle,drugs for the treatment of obesity or bariatric surgery could be considered.Clomiphene citrate is the first-line medication after weight loss that has been utilized in the past.Letrozole is supplanting clomiphene as the best option for ovulation induction for now,particularly in patients with PCOS.Metformin can improve ovulation and pregnancy rates;however,it has minimal effects in terms of raising live birth rates.Second-line therapies include gonadotropins and laparoscopic ovary drilling.In vitro fertilization can be utilized as a third-line treatment for patients with PCOS who have failed ovulation induction therapy or have other infertility factors.In summary,to achieve fertility,patients with PCOS require standardized individualized therapy.展开更多
The effect of rosiglitazone on endocrine, metabolism and ovulatory performance in the paitents with polycystic ovary syndrome(PCOS) and insulin resistance was investigated. Twenty-five patients diagnosed as having po...The effect of rosiglitazone on endocrine, metabolism and ovulatory performance in the paitents with polycystic ovary syndrome(PCOS) and insulin resistance was investigated. Twenty-five patients diagnosed as having polycystic ovary syndrome (PCOS) combined with insulin resistance were treated with rosiglitazone for 12 weeks. Before and after treatment, serum luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol (E2), testosterone (T), androstenedione (A), sex hormone binding globulin (SHBG), insulin and glucose concentration, total cholesterol, triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholestero (LDL-C), apolipoprotein A, apolipoprotein B levels and ovulatory performance were determined. The results showed that after treatment serum insulin levels was decreased significantly (P<0.01). The HDL-C was increased while LDL-C decreased significantly (P<0.05, P<0.01). The serum LH, T, A concentrations and the ratio of LH/FSH were decreased, while SHBG levels increased significantly (P<0.01). The ovulation rate during clomiphene citrate therapy was 72 %, significantly higher than that before treatment. It is likely that reduction of hyperinsulinemia that is produce by rosiglitazone may effectively improve the endocrine, metabolism and ovulatory performance in the patients with PCOS and insulin resistance.展开更多
BACKGROUND: Polycystic ovary syndrome (PCOS) is an endocrine disease that affects gynecologica health. Treatment of PCOS remains a big challenge for clinicians. OBJECTIVE: This meta-analysis was developed to compa...BACKGROUND: Polycystic ovary syndrome (PCOS) is an endocrine disease that affects gynecologica health. Treatment of PCOS remains a big challenge for clinicians. OBJECTIVE: This meta-analysis was developed to compare the efficacy of co-treatment with traditiona Chinese medicine (TCM) and letrozole against letrozole monotherapy in the treatment of PCOS. SEARCH STRATEGY: Randomized controlled trials (RCTs) were electronically retrieved from PubMed, Cochrane Library, China Biomedical Literature Database, China National Knowledge Infrastructure and Wanfang Data; related papers that were not available electronically were manually checked. All papers were assessed according to the Cochrane Handbook for Systematic Reviews of Interventions and the valid data were analyzed using Revman software (The Cochrane Collaboration, Copenhagen, Denmark) INCLUSION CRITERIA: We included RCTs that compared co-treatment with TCM and letrozole against letrozole monotherapy in women with PCOS, which was defined by anovulation, biochemical or clinical hyperandrogenemia and polycystic ovaries. We included trials from all sources. DATA EXTRACTION AND ANALYSIS: Two independent reviewers extracted data, and evaluated study quality according to the Cochrane Handbook for Systematic Reviews of Interventions criteria for RCT, including issues of patient randomization, blinding and bias. RESULTS: Eight RCTs, involving a total of 537 patients, were included in the present study. The meta-analysis showed that the cycle ovulation rate, the pregnancy rate and the total effective rate of symptom treatment were higher in treatments combining TCM with letrozole, compared with letrozole monotherapy. Although the rate of luteinizing hormone (LH)/follicle-stimulating hormone (FSH) and the body mass index of the group receiving combined therapy were lower than in letrozole monotherapy, no statistical difference was found in the LH and FSH level between the two groups. CONCLUSION: Available evidence showed that co-treatment with TCM and letrozole was more effective than letrozole monotherapy in the treatment of PCOS.展开更多
Introduction:Letrozole showed higher ovulation and live birth rates than clomiphene in infertile women with polycystic ovary syndrome(PCOS).Berberine,a major active component of Chinese herbal medicine rhizomacoptidis...Introduction:Letrozole showed higher ovulation and live birth rates than clomiphene in infertile women with polycystic ovary syndrome(PCOS).Berberine,a major active component of Chinese herbal medicine rhizomacoptidis,has been used to improve insulin resistance to facilitate ovulation induction in women with PCOS,but there is no study reporting the live birth or its potential as a complementary treatment to letrozole.We aim to determine the efficacy of letrozole with or without berberine in achieving live births among 644 infertile women with PCOS in China's Mainland.Methods and analysis:This is a prospective,randomized,multicentre,double-blinded,controlled design.Infertile women with PCOS were randomized into three-arm,letrozole and berberine,letrozole and berberine placebo,letrozole placebo and berberine.Data and blood were collected at baseline,the third month and sixth month after treatment,or immediately were collected if subject was pregnant.Statisticians and clinical investigators were blinded to treatment allocation and treatment related study results until the central database was locked for final data extraction and analysis determined.The statistical analysis plan described basic analysis principles,methods commonly encountered in data analysis issues,and the specific statistical procedures for analyzing the primary,secondary,and safety outcomes.Ethics and dissemination:The study was approved by the ethics committee of the First Affiliated Hospital,Heilongjiang University of Chinese Medicine.The study findings will be disseminated through peer-reviewed publications and conference presentations.Trial registration:Chinese Clinical Trial Registry:Chi CTR-TRC-09000376.Clinical Trials.gov identifier:NCT01116167.展开更多
Objective: To compare the clinical effect and safety between letrozole (LE) and clomiphene citrate (CC) stimulated cycles in women with polycystic ovary syndrome (PCOS). To evaluate the effectivenesses and benefits of...Objective: To compare the clinical effect and safety between letrozole (LE) and clomiphene citrate (CC) stimulated cycles in women with polycystic ovary syndrome (PCOS). To evaluate the effectivenesses and benefits of letrozole for ovulation induction in infertile women with PCOS. Methods: We retrospectively analyze the clinical data of 242 cases of the first ovulation induction cycle patients with PCOS, who referred to the Department of Reproductive Medicine, The First Affiliated Hospital of Yangtze University from June 2016 to June 2018, and were randomly divided into letrozole group and control group. The experimental group received Letrozole 2.5 mg/d for 5 days during days 3 - 7 of menstrual cycle. The control group was given clomiphene citrate 100 mg/d for 5 days during days 3 - 7 of menstrual cycle. Progynova will be used when the follicular diameter is 14 mm. Results: Letrozole group had less mature follicles, lower estrogen levels, thicker endometrium and higher ovulation rate in HCG day. But there is no difference between two groups in clinical pregnancy rate, single pregnancy rate, abortion rate, prenatal pregnancy delivery and newborns. Conclusion: Letrozole and clomiphene citrate have similar effect on ovulation induction, but we still need a lot of clinical data of letrozole about the safety of follicle, embryo, fetus and newborns.展开更多
Background:To investigate the therapeutic effects of bromocriptine(BCT)combined with clomiphene citrate(CC)in the induction of ovulation in polycystic ovary syndrome(PCOS)patients with infertility.Methods:A prospectiv...Background:To investigate the therapeutic effects of bromocriptine(BCT)combined with clomiphene citrate(CC)in the induction of ovulation in polycystic ovary syndrome(PCOS)patients with infertility.Methods:A prospective,randomized,and controlled clinical trial was performed on 100 PCOS patients with infertility.Patients were randomly divided into two groups(n=50),patients in control group were treated with 50 mg CC from day 3 to day 7 of the menstrual cycle,and those in observation group(CC+BCT)were given 50 mg of CC from day 3 to day 7 of the menstrual cycle along with 2.5 mg of BCT daily for the full cycle.Patients in both groups were treated for one cycle.Blood was extracted from patients on day 3 of the menstrual cycle,the day of human chorionic gonadotrophin(hCG)injection,and day 7 after hCG injection to measure serum levels of follicle-stimulating hormone(FSH),luteinizing hormone(LH),prolactin(PRL),estradiol(E_(2)),total testosterone(T)and progestin(P).Vaginal ultrasound was used to determine the thickness of endometrium and follicle size and count.Results:There was no significant difference in basal hormone levels between two groups.The success rate of ovulation induction in control group and observation group was 72.0%and 75.4%,respectively,no significant difference was found between two groups(P>0.05).The ongoing pregnancy rate(18.4%)in observation group was significantly higher than that in control group(8.0%).On the day of hCG injection,no significant differences in the levels of FSH,E_(2),and P were found between two groups,while LH was lower,and levels of PRL and T were significantly lower in observation group than those in control group(all P=0.00).On day 7 after hCG injection,no significant differences in the levels of E_(2) and P were found between two groups,while PRL level was significantly lower in observation group than that in control group,and the endometrial thickness in observation group(10.20±1.92 mm)was significantly higher than that in control group(9.22±1.88 mm)(P=0.01).Conclusions:Compared with the use of CC alone,BCT combined with CC can increase the success rate of ovulation induction-assisted pregnancy in PCOS patients,decrease the levels of PRL,LH,and T and increase the endometrial thickness in implantation window.Those data suggest that dopamine agonist BCT may reduce the pituitary hormone and androgen levels,reduce endometrial vascular resistance,and increase endometrial blood supply to improve the infertility outcomes of PCOS patients with infertility.展开更多
Objective To investigate the impact of high circulating anti-Müllerian hormone(AMH)on the outcome of ovulation induction using human menopausal gonadotropin(hM G)in women with polycystic ovary syndrome(PCOS...Objective To investigate the impact of high circulating anti-Müllerian hormone(AMH)on the outcome of ovulation induction using human menopausal gonadotropin(hM G)in women with polycystic ovary syndrome(PCOS).Methods This prospective study included 63 anovulatory women with PCOS who underwent hM G ovarian stimulation. Serum AMH concentrations were compared between responders and non-responders. The receiver-operating characteristic(ROC)curve was used to evaluate the prognostic value of circulating AMH.Results hM G responders had a significantly lower serum AMH concentration compared with non-responders(8.43±2.18 μg/L vs 11.05±2.85 μg/L, P〈0.001). In multivariate Logistic regression analysis, AMH was an independent predictor of ovulation induction by hM G in PCOS patients. ROC curve analysis showed AMH was a useful predictor of ovulation induction by hM G in PCOS patients, having 91.7% specificity and 66.7% sensitivity when the threshold AMH concentration was 10.12 μg/L.Conclusion Serum AMH can be used as an effective parameter to predict ovarian response to hM G treatment in PCOS patients.展开更多
Objective:To investigate the anti-androgenic properties of Symplocos racemosa Roxb.(S.racemosa)in the treatment of hyperandrogenemia associated polycystic ovary syndrome(PCOS)in a letrozole induced PCOS rat model.Meth...Objective:To investigate the anti-androgenic properties of Symplocos racemosa Roxb.(S.racemosa)in the treatment of hyperandrogenemia associated polycystic ovary syndrome(PCOS)in a letrozole induced PCOS rat model.Methods:The testosterone levels were used to evaluate the anti-androgenic effect of S.racemosa in letrozole induced PCOS rats for 21 d.The low(250 mg/kg),mid(500 mg/kg)and high dose(1000 mg/kg)of S.racemosa was given to the PCOS induced rats for 15 d post letrozole induction to determine the effective dose of S.racemosa in the treatment of hyperandrogenemia associated PCOS.The hormones such as estrogen and progesterone were also assayed along with testosterone to determine the fluctuations in sex steroid levels in PCOS rats induced by letrozole.Results:S.racemosa treatment significantly decreased testosterone levels which were found to be elevated in PCOS rats induced by letrozole.S.racemosa significantly restored other blood biochemical parameters such as estrogen,progesterone and cholesterol levels.It also restored the histology of ovarian tissue.The ovarian weights and uterine weights were also significantly recovered after the S.racemosa treatment.Conclusions:The mid dose(500 mg/kg)and high dose(1000 mg/kg)of S.racemosa were found to be effective in the treatment of hyperandrogenemia in PCOS.This effect of S.racemosa was found to be comparable with clomiphene citrate.Clomiphene citrate which was being used as the major medicine in the treatment of PCOS could now be replaced with S.racemosa in the management of PCOS.展开更多
OBJECTIVE: To assess the protective effect of dark chocolate(DC) on the letrozole-induced rat model of polycystic ovary syndrome(PCOS). METHODS: In this experimental study, 32 female Wistar rats, weighing(200 ± 2...OBJECTIVE: To assess the protective effect of dark chocolate(DC) on the letrozole-induced rat model of polycystic ovary syndrome(PCOS). METHODS: In this experimental study, 32 female Wistar rats, weighing(200 ± 20) g, were randomly categorized into 4 groups including control, letrozole(1 mg·kg-1·d-1), metformin(500 mg·kg-1·d-1) along with letrozole, and DC(500 mg·kg-1·d-1) along with letrozole for 28 d by oral gavage. Twenty-four hours after the last supplementation, direct blood sampling was taken from the heart to obtain blood serum for evaluation of sex hormones and gonadotropins, oxidative parameters, inflammatory cytokines, and ovarian tissue was examined for histology. RESULTS: The DC treatment significantly improved PCOS signs, as demonstrated by the significant restoration of ovarian morphology and physiological functions as compared with the letrozole group. DC treatment also decreased ovarian interleukin-1β and tumor necrosis factor-α levels and improved total oxidative/antioxidative status as compared with the letrozole group. CONCLUSIONS: Treating the animals with DC could alleviate the PCOS symptoms and reduced the toxic effects of letrozole in the ovary. This effect may mediate through antioxidant and antiinflammatory properties.展开更多
目的:系统评价中药周期疗法联合促排卵方案治疗多囊卵巢综合征(PCOS)不孕症的临床疗效及安全性。方法:计算机检索PubMed、EMbase、Web of Science、the Cochrane Library、中国生物医学文献数据库(CBM)、中国知网(CNKI)、万方数据库、...目的:系统评价中药周期疗法联合促排卵方案治疗多囊卵巢综合征(PCOS)不孕症的临床疗效及安全性。方法:计算机检索PubMed、EMbase、Web of Science、the Cochrane Library、中国生物医学文献数据库(CBM)、中国知网(CNKI)、万方数据库、维普数据库,检索时限为建库至2024年2月,纳入中药周期疗法治疗PCOS不孕症的随机对照试验。由2位研究人员独立按照纳入、排除标准进行文献筛选和数据收集。采用RevMan5.4软件进行Meta分析。结果:最终纳入15项研究,涉及患者1171例,其中治疗组594例,对照组577例。Meta分析结果显示,与对照组比较,治疗组妊娠率[RR=1.80,95%CI(1.58,2.04),P<0.00001]、排卵率[RR=1.10,95%CI(1.06,1.14),P<0.00001]和总有效率[RR=1.25,95%CI=(1.15,1.37),P<0.00001]升高,子宫内膜厚度增厚[MD=1.12,95%CI(0.94,1.29),P<0.00001],雄激素[MD=-0.39,95%CI(-0.52,-0.26),P<0.00001]、促黄体生成激素[MD=-1.49,95%CI(-1.93,-1.05),P<0.00001]水平及卵巢过度刺激征发生率[RR=0.25,95%CI(0.08,0.79),P=0.02]与不良反应发生率[RR=0.36,95%CI(0.19,0.67),P=0.001]降低。结论:中药周期疗法联合促排卵方案治疗PCOS不孕症疗效优于单纯促排卵方案治疗,能够促进生育,调节性激素水平,安全性较高。展开更多
基金supported by Shiraz University,Vice-Chancellor of Research as a master thesis.
文摘Objective:To explore the potential therapeutic impact of an alcoholic extract derived from the sea cucumber(Holothuria parva)on letrozole-induced polycystic ovary syndrome(PCOS)in adult female Sprague-Dawley rats.Methods:Sixteen female rats,aged 8 to 10 weeks,with a mean weight of(200±20)g,were randomly assigned to four groups:the control,PCOS,and two treatment groups receiving sea cucumber extract and metformin,respectively.PCOS was induced by administering letrozole at a dose of 1 mg/kg to initiate the treatment period at 60 days of age.The study spanned four weeks,during which ovarian and uterine tissues were collected for histological examination,and blood samples were collected for hormonal levels.Results:Significant decreases in luteinizing hormone/follicle stimulating hormone(LH/FSH)and testosterone and increases progesterone levels among groups treated with sea cucumber extract were observed.While no significant differences were observed in follicle-stimulating hormone(FSH)and testosterone levels,the distinctive variations in key hormones suggested a potential role for sea cucumber alcoholic extract in ameliorating PCOS symptoms.Conclusions:This research highlights the moderate efficacy of sea cucumber extract as a therapeutic intervention for PCOS,providing a novel perspective in the search for effective remedies.The observed hormonal alterations,particularly in LH,estradiol,and progesterone,underscore the need for further exploration into the underlying mechanisms and for optimizing the application of sea cucumber extract in PCOS management.
基金University Grants Commission,Government of India(Post-Doctoral Fellowship for SC/ST,Award letter No#:PDFSS-2015-17-ST-TEL-10464).
文摘Objective:To investigate the potential activity of protocatechuic acid in female Wistar rats with letrozole-induced polycystic ovary syndrome(PCOS).Methods:Thirty rats were divided into five groups of six each.Group 1 received 0.5%carboxy methyl cellulose orally and served as the normal control group;group 2 was treated orally with 1 mg/kg of letrozole daily for 21 days and served as the PCOS induced group;group 3 was orally administered with letrozole of 1 mg/kg for 21 days and further administered with standard drug of clomiphene citrate at a dose of 1 mg/kg body weight in 0.5%carboxy methyl cellulose per oral and served as the standard group;groups 4 and 5 were administered with letrozole of 1 mg/kg for 21 days and further treated with protocatechuic acid orally at low dose of 5 mg/kg body weight and high dose of 15 mg/kg body weight respectively for 15 days.At the end of the study period,rats were subjected for the estimation of invasive blood pressure and heart rate,biochemical estimations and antioxidant assay.In addition,ovarian histomorphology was examined.Results:The PCOS was confirmed in the letrozole induced rats with increased concentration of androgen,abnormal lipid levels,glucose,glycosylated haemoglobin and also depletion of antioxidants.After protocatechuic acid treatment,the increased levels of testosterone due to induction of PCOS were restored to normal levels.Additionally,there was a consistent decrease in luteinizing hormone and follicle stimulating hormone levels in the treatment groups,followed by decrease in the number of cysts after treatment with protocatechuic acid.Histopathological observations showed a remarkable recovery of the ovarian tissue and the presence of normalized structure of antral follicle.Protocatechuic acid treatment restored all the parameters to normalcy and abolished cysts formation in ovaries of female rats.Conclusions:Protocatechuic acid shows potential protective effects in letrozole-induced PCOS rats.The protective effect is comparable to that of clomiphene citrate and thus shows its potential in the treatment of PCOS.
文摘Background:Polycystic ovary syndrome(PCOS)is an endocrine disorder that occurs in women of child-bearing age.Moreover,PCOS patients have decreased pregnancy rates and clomiphene citrate resistance.The traditional Chinese medicine formula Kun-Tai-1S(KT1S),consisting of the seahorse species hippocampus,has been reported to elicit therapeutic effects in patients with PCOS.However,given the limited resources and global demand for wild hippocampus,whether KT1S with or without hippocampus can elicit similar therapeutic effects has not been confirmed.Methods:KT1S and Kun-Tai-1A(KT1A,KT1S without dry hippocampus)were used to treat a letrozole-induced rat model of PCOS with an established disease.The serum levels of testosterone,luteinizing hormone,anti-Müllerian hormone,and estradiol were determined,the luteinizing hormone/follicle-stimulating hormone ratio was determined,and the ovarian pathology was evaluated.Results:Similar to the therapeutic effects of cyproterone acetate,both the KT1S and KT1A treatments reduced the body weight and ovarian and uterine indices in the rats with PCOS.The serum levels of testosterone,anti-Müllerian hormone,and luteinizing hormone and the luteinizing hormone/follicle-stimulating hormone ratio were significantly lower in the KT1S and KT1A treatment groups compared to the model group(P<0.01 and P<0.05,respectively).Moreover,the histopathological assessment results suggested that both the KT1S and KT1A treatments significantly ameliorated the PCOS pathology in the rats with an established disease,with a reduced number of cystic and atretic follicles and an increased number of corpora lutea being observed in the ovaries.Notably,there was no obvious difference in the disease outcomes between the KT1S and KT1A-treated groups.Network pharmacology analysis revealed that 4’,7-dihydroxyflavanone,sinpemine A,quercetin,8-isopentenyl-kaempferol,and luteolin in KT1A may promote estrogen signaling;furthermore,the nitric oxide regulation pathway is also closely involved.Conclusion:KT1A and KT1S treatments both significantly ameliorated the PCOS-related pathology in rats,suggesting that the hippocampus component is dispensable for KT1S-mediated amelioration.Given the limited resources and global demand for wild hippocampus for use in complementary medicines,our findings may help conserve this species.Together,our results suggest that KT1A is a promising approach for treating PCOS.
基金Supported by Guangxi Natural Science Foundation (2020GXNSFAA238022)National Natural Sciences Foundation of China (82060280)+1 种基金Doctoral Research Start-up Fund of Guangxi University of Chinese Medicine (2017BS011)Science and Technology Plan Project of Guangxi University of Chinese Medicine (2018ZD003).
文摘Polycystic ovary syndrome(PCOS)is a reproductive endocrine disease characterized by ovulation disorder,hyperandrogenism and/or polycystic ovary.Follicular development disorder caused by PCOS accounts for up to 75%of anovulatory infertility,which is a common cause of infertility and affects up to 15%of reproductive aged women worldwide.Oxidative stress,chronic inflammation,endoplasmic reticulum stress and other pathological conditions coexist in the ovarian microenvironment of PCOS,which are further aggravated under the action of high levels of androgens,synergistically deteriorating the follicular microenvironment,leading to ovulation disorders in PCOS patients.This paper briefly reviewed the research on the mechanism of PCOS ovulation disorder in recent years.
文摘Background: The purpose of this study was to compare the effectiveness of Letrozole versus Clomiphene citrate for ovulation induction in polycystic ovarian syndrome (PCOS) with infertility. Methods: This was a prospective randomized trial involving 150 women with PCOS attending the Infertility Clinic at three hospitals in Malaysia. During the initial visit, anthropometric measurements and baseline investigations were performed. Patients were randomized to 5.0 mg Letrozole daily (75 patients) or 100 mg Clomiphene citrate daily (75 patients) from the fifth until the ninth day of menstruation. Serial transvaginal scans were performed to see the dominant follicles, endometrial thickness and number of follicles. Transvaginal scans were performed serially to look for evidence of ovulation. Results: The subjects were homogenously distributed. The difference between Letrozole and Clomiphene citrate for ovulation rate was 59 (78.7%) versus 40 (53.3%). Patients taking Letrozole exhibited a mean endometrial thickness (ET) at mid cycle of menses (Day 11-D14) of9.2 mm(SD ± 2.3) versus8.4 mm(SD ± 2.2) for patients taking Clomiphene citrate, and these differences were statistically significant
文摘Background: Polycystic ovary syndrome (PCOS) is a common cause of anovulatory infertility. The therapeutic strategies for clomiphene citrate (CC)- resistant patients include the addition of corticosteroids, extended duration of clomiphene, gonadotrophin therapy, laparoscopic ovarian drilling, in vitro fertilization or the use of aromatase inhibitors recently. Letrozole decreases estrogen levels in the body, so it releases the hypothalamus and/or pituitary gland from the negative feedback of estrogen. This increases levels of gonadotrophins, which stimulates follicular growth. Objectives: To evaluate the role of letrozole alone and simultaneous use of letrozole and clomiphene citrate (CC) for ovulation induction in patients with clomiphene citrate-resistant PCOS (CCR-PCOS). Patients and Methods: This open-label randomised controlled study was conducted in the Department of Obstetrics and Gynecology, Faculty of Medicine, Zagazig University, Egypt during the period from February 2018 to June 2019. The study included 60 CCR-PCOS patients who were randomly allocated by independent personnel into two arms: group A (letrozole alone) or B (letrozole + CC). In either group, monitoring the mean follicular diameter and endometrial thickness in the days 10, 12, and 14 of the cycle by transvaginal ultrasound and Measurement of serum Progesterone (ng/ml) 7 days after the expected time of ovulation. Results: We investigated various clinical and sonographic factors that may predict the outcome of the method of induction of ovulation in CCR-PCOS with no significant affection for the results. There was a non-significant difference between the studied groups regarding ovulation and pregnancy per cycle or per patient. Conclusion: Letrozole alone or simultaneous use of letrozole and CC offers a good second-line option for induction of ovulation in CCR-PCOS patients. However, the combination of CC and letrozole did not add any benefit over the use of letrozole alone regards ovulation rate, follicular volume, endometrial thickness, pregnancy rate and live birth rate.
文摘Objective: To observe the therapeutic effect of combined traditional Chinese medicine (TCM) therapy with acupoint injection and herbal patch application on patients with ovulatory dysfunction associated with polycystic ovary syndrome (PCOS). Methods: A total of 80 PCOS patients who received treatment at the First Affiliated Hospital of Guangxi University of Chinese Medicine between October 2022 and March 2024 were enrolled in this study. They were randomly divided into a control group (n = 40) and an observation group (n = 40). The control group received conventional Western medical treatments, while the observation group was administered TCM combined with acupoint injection and herbal patch application. Pre- and post-treatment conditions were compared between the two groups. Results: After treatment, the overall effective rate was significantly higher in the observation group compared to the control group (P 0.05). Following treatment, both ovulation and pregnancy rates increased in both groups, but the increase was more evident in the observation group, showing a statistically significant difference (P < 0.01). Conclusion: For patients with oligoovulation or anovulation due to PCOS, the combined use of TCM, acupoint injection, and herbal patch application appears to be effective in improving systemic symptoms and achieving notable clinical outcomes.
基金supported by Beijing Municipal Administration of Hospitals'Ascent Plan(No.DFL20181401)of China.
文摘Polycystic ovary syndrome(PCOS)is the most common endocrine and metabolic disease in women of reproductive age.PCOS is characterized by ovulatory disruption,which can lead to infertility.Patients with PCOS are also more likely to have poor pregnancy outcomes.For obese women,lifestyle interventions are recommended first,which have general health benefits.For women who have difficulty changing their lifestyle,drugs for the treatment of obesity or bariatric surgery could be considered.Clomiphene citrate is the first-line medication after weight loss that has been utilized in the past.Letrozole is supplanting clomiphene as the best option for ovulation induction for now,particularly in patients with PCOS.Metformin can improve ovulation and pregnancy rates;however,it has minimal effects in terms of raising live birth rates.Second-line therapies include gonadotropins and laparoscopic ovary drilling.In vitro fertilization can be utilized as a third-line treatment for patients with PCOS who have failed ovulation induction therapy or have other infertility factors.In summary,to achieve fertility,patients with PCOS require standardized individualized therapy.
文摘The effect of rosiglitazone on endocrine, metabolism and ovulatory performance in the paitents with polycystic ovary syndrome(PCOS) and insulin resistance was investigated. Twenty-five patients diagnosed as having polycystic ovary syndrome (PCOS) combined with insulin resistance were treated with rosiglitazone for 12 weeks. Before and after treatment, serum luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol (E2), testosterone (T), androstenedione (A), sex hormone binding globulin (SHBG), insulin and glucose concentration, total cholesterol, triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholestero (LDL-C), apolipoprotein A, apolipoprotein B levels and ovulatory performance were determined. The results showed that after treatment serum insulin levels was decreased significantly (P<0.01). The HDL-C was increased while LDL-C decreased significantly (P<0.05, P<0.01). The serum LH, T, A concentrations and the ratio of LH/FSH were decreased, while SHBG levels increased significantly (P<0.01). The ovulation rate during clomiphene citrate therapy was 72 %, significantly higher than that before treatment. It is likely that reduction of hyperinsulinemia that is produce by rosiglitazone may effectively improve the endocrine, metabolism and ovulatory performance in the patients with PCOS and insulin resistance.
基金supported by the Natural Science Foundation of China(No.81373683)
文摘BACKGROUND: Polycystic ovary syndrome (PCOS) is an endocrine disease that affects gynecologica health. Treatment of PCOS remains a big challenge for clinicians. OBJECTIVE: This meta-analysis was developed to compare the efficacy of co-treatment with traditiona Chinese medicine (TCM) and letrozole against letrozole monotherapy in the treatment of PCOS. SEARCH STRATEGY: Randomized controlled trials (RCTs) were electronically retrieved from PubMed, Cochrane Library, China Biomedical Literature Database, China National Knowledge Infrastructure and Wanfang Data; related papers that were not available electronically were manually checked. All papers were assessed according to the Cochrane Handbook for Systematic Reviews of Interventions and the valid data were analyzed using Revman software (The Cochrane Collaboration, Copenhagen, Denmark) INCLUSION CRITERIA: We included RCTs that compared co-treatment with TCM and letrozole against letrozole monotherapy in women with PCOS, which was defined by anovulation, biochemical or clinical hyperandrogenemia and polycystic ovaries. We included trials from all sources. DATA EXTRACTION AND ANALYSIS: Two independent reviewers extracted data, and evaluated study quality according to the Cochrane Handbook for Systematic Reviews of Interventions criteria for RCT, including issues of patient randomization, blinding and bias. RESULTS: Eight RCTs, involving a total of 537 patients, were included in the present study. The meta-analysis showed that the cycle ovulation rate, the pregnancy rate and the total effective rate of symptom treatment were higher in treatments combining TCM with letrozole, compared with letrozole monotherapy. Although the rate of luteinizing hormone (LH)/follicle-stimulating hormone (FSH) and the body mass index of the group receiving combined therapy were lower than in letrozole monotherapy, no statistical difference was found in the LH and FSH level between the two groups. CONCLUSION: Available evidence showed that co-treatment with TCM and letrozole was more effective than letrozole monotherapy in the treatment of PCOS.
基金Funded by the National Public Welfare Projects for Chinese Medicine(200807021)of Chinathe "11th–Five" Supportive Program for Science and Technology of China(2007BAI20B015)+1 种基金the Heilongjiang Province Foundation for Outstanding Youths(JC200804)the Intervention for Polycystic Ovary Syndrome Based on Traditional Chinese Medicine Theory-‘Tian Gui Shi Xu’(2011TD006)
文摘Introduction:Letrozole showed higher ovulation and live birth rates than clomiphene in infertile women with polycystic ovary syndrome(PCOS).Berberine,a major active component of Chinese herbal medicine rhizomacoptidis,has been used to improve insulin resistance to facilitate ovulation induction in women with PCOS,but there is no study reporting the live birth or its potential as a complementary treatment to letrozole.We aim to determine the efficacy of letrozole with or without berberine in achieving live births among 644 infertile women with PCOS in China's Mainland.Methods and analysis:This is a prospective,randomized,multicentre,double-blinded,controlled design.Infertile women with PCOS were randomized into three-arm,letrozole and berberine,letrozole and berberine placebo,letrozole placebo and berberine.Data and blood were collected at baseline,the third month and sixth month after treatment,or immediately were collected if subject was pregnant.Statisticians and clinical investigators were blinded to treatment allocation and treatment related study results until the central database was locked for final data extraction and analysis determined.The statistical analysis plan described basic analysis principles,methods commonly encountered in data analysis issues,and the specific statistical procedures for analyzing the primary,secondary,and safety outcomes.Ethics and dissemination:The study was approved by the ethics committee of the First Affiliated Hospital,Heilongjiang University of Chinese Medicine.The study findings will be disseminated through peer-reviewed publications and conference presentations.Trial registration:Chinese Clinical Trial Registry:Chi CTR-TRC-09000376.Clinical Trials.gov identifier:NCT01116167.
文摘Objective: To compare the clinical effect and safety between letrozole (LE) and clomiphene citrate (CC) stimulated cycles in women with polycystic ovary syndrome (PCOS). To evaluate the effectivenesses and benefits of letrozole for ovulation induction in infertile women with PCOS. Methods: We retrospectively analyze the clinical data of 242 cases of the first ovulation induction cycle patients with PCOS, who referred to the Department of Reproductive Medicine, The First Affiliated Hospital of Yangtze University from June 2016 to June 2018, and were randomly divided into letrozole group and control group. The experimental group received Letrozole 2.5 mg/d for 5 days during days 3 - 7 of menstrual cycle. The control group was given clomiphene citrate 100 mg/d for 5 days during days 3 - 7 of menstrual cycle. Progynova will be used when the follicular diameter is 14 mm. Results: Letrozole group had less mature follicles, lower estrogen levels, thicker endometrium and higher ovulation rate in HCG day. But there is no difference between two groups in clinical pregnancy rate, single pregnancy rate, abortion rate, prenatal pregnancy delivery and newborns. Conclusion: Letrozole and clomiphene citrate have similar effect on ovulation induction, but we still need a lot of clinical data of letrozole about the safety of follicle, embryo, fetus and newborns.
基金This study was supported by the project of Shanghai Association for Science and Technology(KXSH021311).
文摘Background:To investigate the therapeutic effects of bromocriptine(BCT)combined with clomiphene citrate(CC)in the induction of ovulation in polycystic ovary syndrome(PCOS)patients with infertility.Methods:A prospective,randomized,and controlled clinical trial was performed on 100 PCOS patients with infertility.Patients were randomly divided into two groups(n=50),patients in control group were treated with 50 mg CC from day 3 to day 7 of the menstrual cycle,and those in observation group(CC+BCT)were given 50 mg of CC from day 3 to day 7 of the menstrual cycle along with 2.5 mg of BCT daily for the full cycle.Patients in both groups were treated for one cycle.Blood was extracted from patients on day 3 of the menstrual cycle,the day of human chorionic gonadotrophin(hCG)injection,and day 7 after hCG injection to measure serum levels of follicle-stimulating hormone(FSH),luteinizing hormone(LH),prolactin(PRL),estradiol(E_(2)),total testosterone(T)and progestin(P).Vaginal ultrasound was used to determine the thickness of endometrium and follicle size and count.Results:There was no significant difference in basal hormone levels between two groups.The success rate of ovulation induction in control group and observation group was 72.0%and 75.4%,respectively,no significant difference was found between two groups(P>0.05).The ongoing pregnancy rate(18.4%)in observation group was significantly higher than that in control group(8.0%).On the day of hCG injection,no significant differences in the levels of FSH,E_(2),and P were found between two groups,while LH was lower,and levels of PRL and T were significantly lower in observation group than those in control group(all P=0.00).On day 7 after hCG injection,no significant differences in the levels of E_(2) and P were found between two groups,while PRL level was significantly lower in observation group than that in control group,and the endometrial thickness in observation group(10.20±1.92 mm)was significantly higher than that in control group(9.22±1.88 mm)(P=0.01).Conclusions:Compared with the use of CC alone,BCT combined with CC can increase the success rate of ovulation induction-assisted pregnancy in PCOS patients,decrease the levels of PRL,LH,and T and increase the endometrial thickness in implantation window.Those data suggest that dopamine agonist BCT may reduce the pituitary hormone and androgen levels,reduce endometrial vascular resistance,and increase endometrial blood supply to improve the infertility outcomes of PCOS patients with infertility.
文摘Objective To investigate the impact of high circulating anti-Müllerian hormone(AMH)on the outcome of ovulation induction using human menopausal gonadotropin(hM G)in women with polycystic ovary syndrome(PCOS).Methods This prospective study included 63 anovulatory women with PCOS who underwent hM G ovarian stimulation. Serum AMH concentrations were compared between responders and non-responders. The receiver-operating characteristic(ROC)curve was used to evaluate the prognostic value of circulating AMH.Results hM G responders had a significantly lower serum AMH concentration compared with non-responders(8.43±2.18 μg/L vs 11.05±2.85 μg/L, P〈0.001). In multivariate Logistic regression analysis, AMH was an independent predictor of ovulation induction by hM G in PCOS patients. ROC curve analysis showed AMH was a useful predictor of ovulation induction by hM G in PCOS patients, having 91.7% specificity and 66.7% sensitivity when the threshold AMH concentration was 10.12 μg/L.Conclusion Serum AMH can be used as an effective parameter to predict ovarian response to hM G treatment in PCOS patients.
基金Supported by Therapeutic Drug Monitoring Laboratory,Mumbai 400022,India(Grant No.CL/TDML/SM/10-11/452A).
文摘Objective:To investigate the anti-androgenic properties of Symplocos racemosa Roxb.(S.racemosa)in the treatment of hyperandrogenemia associated polycystic ovary syndrome(PCOS)in a letrozole induced PCOS rat model.Methods:The testosterone levels were used to evaluate the anti-androgenic effect of S.racemosa in letrozole induced PCOS rats for 21 d.The low(250 mg/kg),mid(500 mg/kg)and high dose(1000 mg/kg)of S.racemosa was given to the PCOS induced rats for 15 d post letrozole induction to determine the effective dose of S.racemosa in the treatment of hyperandrogenemia associated PCOS.The hormones such as estrogen and progesterone were also assayed along with testosterone to determine the fluctuations in sex steroid levels in PCOS rats induced by letrozole.Results:S.racemosa treatment significantly decreased testosterone levels which were found to be elevated in PCOS rats induced by letrozole.S.racemosa significantly restored other blood biochemical parameters such as estrogen,progesterone and cholesterol levels.It also restored the histology of ovarian tissue.The ovarian weights and uterine weights were also significantly recovered after the S.racemosa treatment.Conclusions:The mid dose(500 mg/kg)and high dose(1000 mg/kg)of S.racemosa were found to be effective in the treatment of hyperandrogenemia in PCOS.This effect of S.racemosa was found to be comparable with clomiphene citrate.Clomiphene citrate which was being used as the major medicine in the treatment of PCOS could now be replaced with S.racemosa in the management of PCOS.
文摘OBJECTIVE: To assess the protective effect of dark chocolate(DC) on the letrozole-induced rat model of polycystic ovary syndrome(PCOS). METHODS: In this experimental study, 32 female Wistar rats, weighing(200 ± 20) g, were randomly categorized into 4 groups including control, letrozole(1 mg·kg-1·d-1), metformin(500 mg·kg-1·d-1) along with letrozole, and DC(500 mg·kg-1·d-1) along with letrozole for 28 d by oral gavage. Twenty-four hours after the last supplementation, direct blood sampling was taken from the heart to obtain blood serum for evaluation of sex hormones and gonadotropins, oxidative parameters, inflammatory cytokines, and ovarian tissue was examined for histology. RESULTS: The DC treatment significantly improved PCOS signs, as demonstrated by the significant restoration of ovarian morphology and physiological functions as compared with the letrozole group. DC treatment also decreased ovarian interleukin-1β and tumor necrosis factor-α levels and improved total oxidative/antioxidative status as compared with the letrozole group. CONCLUSIONS: Treating the animals with DC could alleviate the PCOS symptoms and reduced the toxic effects of letrozole in the ovary. This effect may mediate through antioxidant and antiinflammatory properties.
文摘目的:系统评价中药周期疗法联合促排卵方案治疗多囊卵巢综合征(PCOS)不孕症的临床疗效及安全性。方法:计算机检索PubMed、EMbase、Web of Science、the Cochrane Library、中国生物医学文献数据库(CBM)、中国知网(CNKI)、万方数据库、维普数据库,检索时限为建库至2024年2月,纳入中药周期疗法治疗PCOS不孕症的随机对照试验。由2位研究人员独立按照纳入、排除标准进行文献筛选和数据收集。采用RevMan5.4软件进行Meta分析。结果:最终纳入15项研究,涉及患者1171例,其中治疗组594例,对照组577例。Meta分析结果显示,与对照组比较,治疗组妊娠率[RR=1.80,95%CI(1.58,2.04),P<0.00001]、排卵率[RR=1.10,95%CI(1.06,1.14),P<0.00001]和总有效率[RR=1.25,95%CI=(1.15,1.37),P<0.00001]升高,子宫内膜厚度增厚[MD=1.12,95%CI(0.94,1.29),P<0.00001],雄激素[MD=-0.39,95%CI(-0.52,-0.26),P<0.00001]、促黄体生成激素[MD=-1.49,95%CI(-1.93,-1.05),P<0.00001]水平及卵巢过度刺激征发生率[RR=0.25,95%CI(0.08,0.79),P=0.02]与不良反应发生率[RR=0.36,95%CI(0.19,0.67),P=0.001]降低。结论:中药周期疗法联合促排卵方案治疗PCOS不孕症疗效优于单纯促排卵方案治疗,能够促进生育,调节性激素水平,安全性较高。