BACKGROUND The prevalence of female infertility between the ages of 25 and 44 is 3.5%to 16.7%in developed countries and 6.9%to 9.3%in developing countries.This means that infertility affects one in six couples and is ...BACKGROUND The prevalence of female infertility between the ages of 25 and 44 is 3.5%to 16.7%in developed countries and 6.9%to 9.3%in developing countries.This means that infertility affects one in six couples and is recognized by the World Health Organization as the fifth most serious global disability.The International Committee for Monitoring Assisted Reproductive Technology reported that the global total of babies born as a result of assisted reproductive technology procedures and other advanced fertility treatments is more than 8 million.Advancements in controlled ovarian hyperstimulation procedures led to crucial accomplishments in human fertility treatments.The European Society for Human Reproduction and Embryology guideline on ovarian stimulation gave us valuable evidence-based recommendations to optimize ovarian stimulation in assisted reproductive technology.Conventional ovarian stimulation protocols for in vitro fertilization(IVF)–embryo transfer are based upon the administration of gonadotropins combined with gonadotropin-releasing hormone(GnRH)analogues,either GnRH agonists(GnRHa)or antagonists.The development of ovarian cysts requires the combination of GnRHa and gonadotropins for controlled ovarian hyperstimulation.However,in rare cases patients may develop an ovarian hyper response after administration of GnRHa alone.CASE SUMMARY Here,two case studies were conducted.In the first case,a 33-year-old female diagnosed with polycystic ovary syndrome presented for her first IVF cycle at our reproductive center.Fourteen days after triptorelin acetate was administrated(day 18 of her menstrual cycle),bilateral ovaries presented polycystic manifestations.The patient was given 5000 IU of human chorionic gonadotropin.Twenty-two oocytes were obtained,and eight embryos formed.Two blastospheres were transferred in the frozen-thawed embryo transfer cycle,and the patient was impregnated.In the second case,a 37-year-old woman presented to the reproductive center for her first donor IVF cycle.Fourteen days after GnRHa administration,the transvaginal ultrasound revealed six follicles measuring 17-26 mm in the bilateral ovaries.The patient was given 10000 IU of human chorionic gonadotropin.Three oocytes were obtained,and three embryos formed.Two high-grade embryos were transferred in the frozen-thawed embryo transfer cycle,and the patient was impregnated.CONCLUSION These two special cases provide valuable knowledge through our experience.We hypothesize that oocyte retrieval can be an alternative to cycle cancellation in these conditions.Considering the high progesterone level in most cases of this situation,we advocate freezing embryos after oocyte retrieval rather than fresh embryo transfer.展开更多
In recent years, the demand for goat products has been growing due to the fact that goat milk has a number of advantages over cow milk, for example, it is low in lactose, and is considered less allergenic and easier t...In recent years, the demand for goat products has been growing due to the fact that goat milk has a number of advantages over cow milk, for example, it is low in lactose, and is considered less allergenic and easier to digest. To increase production during both breeding and non-breeding seasons and reduce the price of dairy products, it is necessary to effectively use reproductive management and assisted reproductive technologies. In vitro embryo production makes it possible to obtain a large number of eggs from goats, which for some reason are unable to conceive, but have genetic value. Afterward in vitro produced embryos can be transferred into recipient goats of other less genetically valuable breeds, such as the Ukrainian local breed. Therefore, the aim of the present study was to investigate the effectiveness of transfers of in vitro produced embryos of Saanen goats into surrogate sires of the Ukrainian local breed in different seasons. All manipulations with animals were carried out following ethical standards (Strasbourg, 1986). Six Saanen goats were selected as the oocyte donors. After the hormonal stimulation oocytes were retrieved by laparoscopic ovum pick-up. In vitro produced embryos were transferred laparotomically into 24 recipients of Ukrainian local breed. Fifty days after embryo transfers, pregnancies were determined by ultrasound diagnostics. Although the embryo development rate in the breeding season was 20% higher than in the non-breeding season, there was no difference in pregnancy and kidding rates between seasons. In conclusion, the transfer of in vitro produced Saanen goat embryos to recipients of the Ukrainian local breed gives the opportunity to achieve pregnancy and kidding regardless of the breeding season, which will enable a faster and more efficient increase in the livestock of highly productive goats in Ukraine in the post-war period.展开更多
Objective:To investigate the effect of abnormal ovarian granulosa cell metabolism on in vitro fertilization and embryo transfer(IVF-ET)outcomes in obese polycystic ovary syndrome(PCOS)patients.Methods:Patients with PC...Objective:To investigate the effect of abnormal ovarian granulosa cell metabolism on in vitro fertilization and embryo transfer(IVF-ET)outcomes in obese polycystic ovary syndrome(PCOS)patients.Methods:Patients with PCOS who met the study criteria were screened according to the inclusion criteria.A total of 32 patients with obese PCOS were recruited into the study group,and 39 patients with non-obese PCOS were recruited into the control group.The general data(age,body mass index,and years of infertility),insulin resistance index(HOMA-IR),follicle-stimulating hormone(FSH),luteinizing hormone(LH),granulosa cell mitochondrial function,and IVF-ET outcome of patients in the study group and control group were retrospectively analyzed.Results:The differences in age and years of infertility between the study group and the control group were insignificant(P>0.05),and the body mass index(BMI)of the study group and control group was 30.5±1.24 kg/m2 and 22.3±1.12 kg/m2,respectively,in which the difference was statistically significant(P<0.05);the HOMA-IR of the study group was significantly higher than that of the control group(P<0.05);the reactive oxygen species(ROS)in the study group was significantly higher than that in the control group(P<0.05),and the ATP content in the study group was significantly lower than that in the control group(P<0.05);comparing the FSH and LH levels between the two groups,the difference was not statistically significant(P>0.05);the rate of IVF-ET failure was significantly higher in the study group than in the control group.Conclusion:PCOS is a complex endocrine disorder,and obesity is one of the independent risk factors for the development of PCOS.展开更多
Objective Prior pulmonary tuberculosis(PTB) on chest X-ray(CXR) was commonly found in infertile patients receiving examinations before in vitro fertilization and embryo transfer(IVF-ET). It was unclear whether untreat...Objective Prior pulmonary tuberculosis(PTB) on chest X-ray(CXR) was commonly found in infertile patients receiving examinations before in vitro fertilization and embryo transfer(IVF-ET). It was unclear whether untreated PTB would affect pregnancy outcomes after IVF-ET.Method We conducted a retrospective cohort study of 14,254 infertile patients who had received IVFET at Peking University Third Hospital in 2017. Prior PTB was defined as the presence of signs suggestive of old or inactive PTB on CXR, with or without a clinical TB history. Patients who had prior PTB on CXR but had not received a clinical diagnosis and anti-TB therapy were included for analysis. Live birth,clinical pregnancy, and miscarriage rates were compared between the untreated PTB and non-PTB groups.Results The untreated PTB group had significantly lower clinical pregnancy(31.7% vs. 38.1%) and live birth(23.8% vs. 30.6%) rates than the non-PTB group(both P < 0.001). Multivariate analysis revealed that untreated PTB was a risk factor for decreased live birth rate [odds ratio(OR), 0.80;95% confidence interval(CI), 0.66–0.98;P = 0.028] in all patients and for increased miscarriage(OR, 4.19;95% CI,1.69–10.39;P = 0.002) and decreased live birth(OR, 0.45;95% CI, 0.24–0.83;P = 0.011) rates in patients with unexplained infertility.Conclusions Untreated PTB was associated with adverse pregnancy outcomes after IVF-ET, especially in patients with unexplained infertility, highlighting the clinical significance of PTB in this specific patient population.展开更多
BACKGROUND Intramural pregnancy is a rare type of ectopic pregnancy,which is diagnosed by transvaginal ultrasound and magnetic resonance imaging.Management strategies vary depending on the site of the pregnancy,the ge...BACKGROUND Intramural pregnancy is a rare type of ectopic pregnancy,which is diagnosed by transvaginal ultrasound and magnetic resonance imaging.Management strategies vary depending on the site of the pregnancy,the gestational age and the desire to maintain fertility.The incidence of intramural pregnancy in assisted reproductive technology is higher than that in natural pregnancy.CASE SUMMARY We present a case of intramural pregnancy after in vitro fertilization and elective single embryo transfer following salpingectomy.The patient was completely asymptomatic and her serumβ-human chorionic gonadotropin level increased from 290 m IU/m L to 1759 m IU/m L.Three-dimensional transvaginal ultrasound indicated a heterogeneous echogenic mass arising from the uterine fundus which was surrounded by myometrium and a slender and extremely hypoechoic area stretching to the uterine cavity which was thought to be a fistulous tract.Therefore,we considered a diagnosis of intramural pregnancy and laparoscopic surgery was conducted at 7 wk gestation.CONCLUSION Early diagnosis and treatment of intramural pregnancy is significant for maintaining fertility.展开更多
BACKGROUND Heterotopic pregnancy(HP)refers to the coexistence of ectopic pregnancy and intrauterine pregnancy.Salpingectomy is proposed as a pretreatment before in vitro fertilization and embryo transfer(IVF-ET)to red...BACKGROUND Heterotopic pregnancy(HP)refers to the coexistence of ectopic pregnancy and intrauterine pregnancy.Salpingectomy is proposed as a pretreatment before in vitro fertilization and embryo transfer(IVF-ET)to reduce the risk of HP.HP after IVF-ET occurs in women who had already underwent bilateral salpingectomy,even though it is extremely rare.CASE SUMMARY A case of a 29-year-old woman with recurrent interstitial HP after IVF-ET following salpingectomy is presented.The main symptom was a sudden and worsening pelvic pain.Physical examinations revealed signs of peritoneal bleeding and irritation with stable vital signs.Transvaginal ultrasound showed a live intrauterine pregnancy and another live embryo with cardiac activity in the left cornu extending beyond the lateral edge of the uterus.Her hemoglobin concentration was 8.0 g/dL,and serum human chorionic gonadotropin value was 171116.9 mIU/mL.With the diagnosis of ruptured HP with internal bleeding,an emergency laparoscopic resection of left cornu was performed.The interstitial pregnancy was removed with caution to protect the intrauterine pregnancy.After the surgical treatment,the intrauterine pregnancy continued with no complications.A healthy baby was delivered by caesarean section at 39 wk.Outcomes of another three cases are further summarized.CONCLUSION Post-salpingectomy HP is a rare but challenging condition.Surgical treatment is preferred in the case with a viable intrauterine pregnancy.展开更多
Pregnancy is an acquired hypercoagulable state. Most patients with thrombosis that develops during pregnancy present with deep vein leg thrombosis and/or pulmonary embolism, whereas the development of mesenteric vein ...Pregnancy is an acquired hypercoagulable state. Most patients with thrombosis that develops during pregnancy present with deep vein leg thrombosis and/or pulmonary embolism, whereas the development of mesenteric vein thrombosis(MVT) in pregnant patients is rare. We report a case of MVT in a 34-year-old woman who had achieved pregnancy via in vitro fertilization-embryo transfer(IVFET). At 7 wk of gestation, the patient was referred to us due to abdominal pain accompanied by vomiting and hematochezia, and she was diagnosed with superior MVT. Following resection of the gangrenous portion of the small intestine, anticoagulation therapy with unfractionated heparin and thrombolysis therapy via a catheter placed in the superior mesenteric artery were performed, and the patient underwent an artificial abortion. Oral estrogen had been administered for hormone replacement as part of the IVF-ET procedure, and additional precipitating factors related to thrombosis were not found. Pregnancy itself, in addition to the administered estrogen, may have caused MVT in this case. We believe that MVT should be included in the differential diagnosis of a pregnant patient who presents with an acute abdomen.展开更多
Infertility is considered to be a growing problem worldwide. In sub-Saharan Africa, at least 20%-50% of couples of reproductive age experience a fertility problem and 30% are diagnosed with infertility. This study exp...Infertility is considered to be a growing problem worldwide. In sub-Saharan Africa, at least 20%-50% of couples of reproductive age experience a fertility problem and 30% are diagnosed with infertility. This study explores the experiences of women in South Africa who are involuntary childless and explores their psychological and emotional experiences of In Vitro Fertilisation and Embryo Transfer (IVF-ET). Utilising a qualitative methodology, a diverse group of 21 married women diagnosed with infertility and who had undergone at least two cycles of IVF-ET were recruited. Semi-structured, in-depth individual interviews were conducted and the data were analysed using thematic analysis. The results of the study indicated that the women perceived themselves as not conforming to a dominant belief system and as a result felt compelled to explore all the medical options available. They reported emotional turmoil characterised by primary binary emotions of anxiety-excitement and nervousness-optimistic. These emotions were experienced throughout the five stages of the IVF-ET treatment cycles. A synopsis of the psychological and emotional responses to the IVF-ET treatment is discussed. The findings of this study suggest the need for the incorporation of a mandatory psychosocial intervention as part of infertility management. Greater attention to the psychological and emotional repercussions of infertility treatment could lead to a more personalised client-approach which, in turn, would prepare infertile women and couples for the emotional demands of the treatment.展开更多
Objective:To explore the clinical outcomes of the infertile women with retrieved oocytes less than or equal to 5 undergoing in vitro fertilization-embryo transfer(IVF-ET) or intracytoplasmic sperm injection(1CSI)....Objective:To explore the clinical outcomes of the infertile women with retrieved oocytes less than or equal to 5 undergoing in vitro fertilization-embryo transfer(IVF-ET) or intracytoplasmic sperm injection(1CSI). Methods:The clinical data of 216 embryo transfer cycles with retrieved oocytes less than or equal to 5 during the procedure of IVF/ICSI in Reproductive Medicine Center of the 105th Hospital of PLA from Jul.2008 to Dec.2011 were analyze retrospectively.All the patients were divided into group A(< 35 years),group B(35-39 years) and group C(≥40 years) according to the ages,and 409 IVF/ICSI cycles with patients’ age less than 35 years old and 6-15 retrieved oocytes in the same period were served as controlled group.Then the patients≥35 years were subdivided into gonadotropin-releasing hormone agonist(GnRH-a) long protocol group,GnRH-a short group and GnRH antagonist group according to the protocols of controlled ovarian hyperstimulation(COH).The clinical date and the outcomes were analyzed and compared among all groups. Results:There were significantly differences in clinical pregnancy rate(38.3%vs.19.4%) and early abortion rate(16.1%vs.50.0%) between group A and group C(P<0.05),and there were no significant differences in clinical pregnancy rate(38.3%vs.41.6%)and early abortion rate(16.1%vs.10.0%) between group A and control group(P>0.05).There were no significant differences in clinical pregnancy rates(29.01%vs.26.1%vs.25.9%) and early abortion rates(33.3%vs.33.3%vs.40.0%) among GnRH-a long protocol group,GnRH-a short group and GnRH antagonist group(P>0.05). Conclusions:Relatively satisfactory clinical outcomes of IVF/ICSI would still be got for the patients <35 years with retrieved oocytes less than or equal to 5,but whatever COH protocols such as GnRH-a long protocol,GnRH-a short and GnRH antagonist could not improve the outcomes of IVF/ICSI for the patients aged≥35 with retrieved oocytes less than or equal to 5.展开更多
1.Introduction Initially,in vitro fertilization and embryo transfer(IVF-ET)was designed to solve tubal factors infertility(TFI)by placing the embryo(s)within the uterine cavity.However,in some cases,an ectopic implant...1.Introduction Initially,in vitro fertilization and embryo transfer(IVF-ET)was designed to solve tubal factors infertility(TFI)by placing the embryo(s)within the uterine cavity.However,in some cases,an ectopic implantation occurs as the embryo can enter the tube.Ectopic pregnancy(EP)is the location of the pregnancy outside the intrauterine cavity.The prevalence of EP following assisted reproductive technology(ART)ranges between 2.1%and 8.6%of all pregnancies and it can reach up to 11%inwomen with tubal factors infertility history.展开更多
Purpose: Insulin resistance (IR) plays an important role in the pathogenesis of polycystic ovary syndrome (PCOS);therefore, insulin-sensitizing agents are widely used to improve IR in women with PCOS. However, whether...Purpose: Insulin resistance (IR) plays an important role in the pathogenesis of polycystic ovary syndrome (PCOS);therefore, insulin-sensitizing agents are widely used to improve IR in women with PCOS. However, whether IR in patients without PCOS should be treated remains uncertain. This study aims to clarify whether IR in patients without PCOS affects the outcomes of in-vitro fertilization-embryo transfer (IVF-ET) and pregnancy. Methods: Between January 2011 and December 2013, we retrospectively reviewed the medical records of 116 non-PCOS patients who underwent the first IVF–ET cycle. IR was calculated using the homeostasis model assessment (HOMA) index [HOMA-IR = (insulin × glucose)/405]. A HOMA index of >2.5 was used to indicate IR. Based on the HOMA index calculation, 28 patients were IR(+) and 88 patients had normal insulin sensitivity. We retrospectively compared the response with controlled ovarian hyperstimulation, retrieved oocytes number, fertilization rates, pregnancy rate, live birth rates, and gestational diabetes mellitus (GDM) incidence. Results: There were no significant differences in human menopausal gonadotropin administration, peak estradiol, retrieved oocyte number, fertilized embryo number, good quality embryo number, implantation rate, clinical pregnancy rate, miscarriage rate, delivery rate, or ovarian hyperstimulation syndrome and GDM incidences between the groups. Conclusion: IR in non-PCOS patients has no effect on IVF-ET outcomes or perinatal prognosis.展开更多
Background:In vitro embryo production(IVP)and embryo transfer(ET)are two very common assisted reproductive technologies(ART)in human and cattle.However,in pig,the combination of either procedures,or even their use sep...Background:In vitro embryo production(IVP)and embryo transfer(ET)are two very common assisted reproductive technologies(ART)in human and cattle.However,in pig,the combination of either procedures,or even their use separately,is still considered suboptimal due to the low efficiency of IVP plus the difficulty of performing ET in the long and contorted uterus of the sow.In addition,the potential impact of these two ART on the health of the offspring is unknown.We investigated here if the use of a modified IVP system,with natural reproductive fluids(RF)as supplements to the culture media,combined with a minimally invasive surgery to perform ET,affects the output of the own IVP system as well as the reproductive performance of the mother and placental molecular traits.Results:The blastocyst rates obtained by both in vitro systems,conventional(C-IVP)and modified(RF-IVP),were similar.Pregnancy and farrowing rates were also similar.However,when compared to in vivo control(artificial insemination,AI),litter sizes of both IVP groups were lower,while placental efficiency was higher in AI than in RF-IVP.Gene expression studies revealed aberrant expression levels for PEG3 and LUM in placental tissue for C-IVP group when compared to AI,but not for RF-IVP group.Conclusions:The use of reproductive fluids as additives for the culture media in pig IVP does not improve reproductive performance of recipient mothers but could mitigate the impact of artificial procedures in the offspring.展开更多
Objective To investigate the factors that influence the potential for cryoembryo implantation and multiple pregnancy. Methods In this retrospective study, a total of 93 7 thawing cycles (859 couples) in which 3286 d...Objective To investigate the factors that influence the potential for cryoembryo implantation and multiple pregnancy. Methods In this retrospective study, a total of 93 7 thawing cycles (859 couples) in which 3286 d 3-embryos were thawed. Rates of implantation, clinical pregnancy and multiple conception following FET were observed. Results There were significant differences in female age (P〈0.05) and number of good quality embryos (P〈0. 05) between cycles that resulted in pregnancy and those did not. There was a trend toward decreasing rates of implantation, clinical pregnancy and multiple pregnancy with increasing female age. Compared with transferring 1 good quality embryo, clinical pregnancy rate of transferring 2 and 3 good quality embryos was increased significantly (P〈0. 001), there was no significant difference in clinical pregnancy rate between transferring 2 and 3 good quality embryos. Multiple pregnancy rate was increased significantly in the group of transferring 3 good quality embryos (P〈0.05),but there was no significant differences in multiple pregnancy rate between transferring 1 and 2 good quality embryos. Younger women (≤ 30 years) also had a significantly higher multiple pregnancy rates (28.13%) than the older ones(〉35 years) (13.64%). With an increase in age from ≤ 30 years to〉40 years, clinical pregnancy rate declined from 47 61% to 25.00%.Conclusion Female age and the number of gooa quality embryos transferred are important factors influencing the clinical and multiple pregnancy rate, reducing the number of good quality embryos transferred may decrease the rate of multiple pregnancy but do not affect the clinical pregnancy rate.展开更多
Objective:To compare clinical pregnancy rates following sequential day-3 and day-5 embryo transfer with double or sequential cleavage-stage transfers.Methods:This study enrolled 242 patients undergoing gonadotropin-re...Objective:To compare clinical pregnancy rates following sequential day-3 and day-5 embryo transfer with double or sequential cleavage-stage transfers.Methods:This study enrolled 242 patients undergoing gonadotropin-releasing hormone antagonist protocol and fresh embryo transfer.Basal follicle stimulating hormone,luteinizing hormone,serum estradiol and anti-Müllerian hormone levels and controlled ovarian stimulation outcomes were noted.Of 242 women,135 underwent double embryo transfer on day 2 or day 3(the double group),54 women underwent sequential embryo transfer on day 2 and day 3(the D2/D3 group),and 53 underwent sequential embryo transfer on day 3 and day 5(the D3/D5 group).Clinical pregnancy rates were compared among the groups.Results:Female age,body mass index,basal follicle stimulating hormone,luteinizing hormone and estradiol levels were similar among the groups(P>0.05).The D3/D5 group had a significantly higher number of metaphaseⅡoocytes,fertilized oocytes and good quality embryos on day 3 compared with the double group and the D2/D3 group(P<0.001).Clinical pregnancy rates in the double,D2/D3 and D3/D5 groups were 26.6%(36/135),16.6%(9/54)and 37.7%(20/53),respectively.There was no significant difference in clinical pregnancy rates between the double group and the D2/D3 group(P=0.204)or the D3/D5 group(P=0.188).The D3/D5 group had significantly higher clinical pregnancy rates compared with the D2/D3 group(P=0.025).Conclusions:Sequential cleavage-stage transfer(D2/D3)or cleavage stage and blastocyst transfer(D3/D5)does not improve clinical pregnancy rates compared with double cleavage-stage embryo transfer.Although sequential transfer seems to be an effective option in certain patient populations,routine application of this technique might not be a suitable approach in an unselected population to improve assisted reproductive technology outcomes.展开更多
There is little information in the scientific literature concerning sheep pregnancy and lambing success with regard to the timeframe from when in vitro produced embryos are transported to the designated location for e...There is little information in the scientific literature concerning sheep pregnancy and lambing success with regard to the timeframe from when in vitro produced embryos are transported to the designated location for embryo transfer (ET). The aim of this study was to transfer in vitro produced embryos under two different conditions that could typically occur using the aforementioned assisted reproductive techniques (ARTs). Abattoir ovaries were used to procure oocytes for in vitro embryo production and subsequent transfer to synchronized ewes. The study consisted of two experiments: Experiment 1 (Exp1)—embryos taken from the laboratory to a nearby surgical room for immediate ET, and Experiment 2 (Exp2)—ET after 5 hours (h) of transport to a rural farm. Lambing in relation to detected pregnancies, births compared to pregnancies, and the proportion of twin offspring were all higher in Exp2. Notably, in both Exp1 and Exp2, there was not a significant difference (P > 0.05) between the number of embryos transferred, i.e., 3 versus 4, respectively, and the number of ewes that underwent parturition in each group. Also, in both experiments there was not a significant difference (P > 0.05) in the number of ewes that underwent parturition based on the number (i.e., ≥1) of corpora lutea present. The results of the present study demonstrate the importance of evaluating different conditions when applying ARTs, as there are many variables that can influence the outcome. Importantly, Exp2 results show that ovine ET in places located far away from the embryo production site can be useful and successful provided that embryo transport, ET, and recipient conditions are adequate.展开更多
文摘BACKGROUND The prevalence of female infertility between the ages of 25 and 44 is 3.5%to 16.7%in developed countries and 6.9%to 9.3%in developing countries.This means that infertility affects one in six couples and is recognized by the World Health Organization as the fifth most serious global disability.The International Committee for Monitoring Assisted Reproductive Technology reported that the global total of babies born as a result of assisted reproductive technology procedures and other advanced fertility treatments is more than 8 million.Advancements in controlled ovarian hyperstimulation procedures led to crucial accomplishments in human fertility treatments.The European Society for Human Reproduction and Embryology guideline on ovarian stimulation gave us valuable evidence-based recommendations to optimize ovarian stimulation in assisted reproductive technology.Conventional ovarian stimulation protocols for in vitro fertilization(IVF)–embryo transfer are based upon the administration of gonadotropins combined with gonadotropin-releasing hormone(GnRH)analogues,either GnRH agonists(GnRHa)or antagonists.The development of ovarian cysts requires the combination of GnRHa and gonadotropins for controlled ovarian hyperstimulation.However,in rare cases patients may develop an ovarian hyper response after administration of GnRHa alone.CASE SUMMARY Here,two case studies were conducted.In the first case,a 33-year-old female diagnosed with polycystic ovary syndrome presented for her first IVF cycle at our reproductive center.Fourteen days after triptorelin acetate was administrated(day 18 of her menstrual cycle),bilateral ovaries presented polycystic manifestations.The patient was given 5000 IU of human chorionic gonadotropin.Twenty-two oocytes were obtained,and eight embryos formed.Two blastospheres were transferred in the frozen-thawed embryo transfer cycle,and the patient was impregnated.In the second case,a 37-year-old woman presented to the reproductive center for her first donor IVF cycle.Fourteen days after GnRHa administration,the transvaginal ultrasound revealed six follicles measuring 17-26 mm in the bilateral ovaries.The patient was given 10000 IU of human chorionic gonadotropin.Three oocytes were obtained,and three embryos formed.Two high-grade embryos were transferred in the frozen-thawed embryo transfer cycle,and the patient was impregnated.CONCLUSION These two special cases provide valuable knowledge through our experience.We hypothesize that oocyte retrieval can be an alternative to cycle cancellation in these conditions.Considering the high progesterone level in most cases of this situation,we advocate freezing embryos after oocyte retrieval rather than fresh embryo transfer.
文摘In recent years, the demand for goat products has been growing due to the fact that goat milk has a number of advantages over cow milk, for example, it is low in lactose, and is considered less allergenic and easier to digest. To increase production during both breeding and non-breeding seasons and reduce the price of dairy products, it is necessary to effectively use reproductive management and assisted reproductive technologies. In vitro embryo production makes it possible to obtain a large number of eggs from goats, which for some reason are unable to conceive, but have genetic value. Afterward in vitro produced embryos can be transferred into recipient goats of other less genetically valuable breeds, such as the Ukrainian local breed. Therefore, the aim of the present study was to investigate the effectiveness of transfers of in vitro produced embryos of Saanen goats into surrogate sires of the Ukrainian local breed in different seasons. All manipulations with animals were carried out following ethical standards (Strasbourg, 1986). Six Saanen goats were selected as the oocyte donors. After the hormonal stimulation oocytes were retrieved by laparoscopic ovum pick-up. In vitro produced embryos were transferred laparotomically into 24 recipients of Ukrainian local breed. Fifty days after embryo transfers, pregnancies were determined by ultrasound diagnostics. Although the embryo development rate in the breeding season was 20% higher than in the non-breeding season, there was no difference in pregnancy and kidding rates between seasons. In conclusion, the transfer of in vitro produced Saanen goat embryos to recipients of the Ukrainian local breed gives the opportunity to achieve pregnancy and kidding regardless of the breeding season, which will enable a faster and more efficient increase in the livestock of highly productive goats in Ukraine in the post-war period.
基金Baoding Science and Technology Program Project(Grant No.2241ZF120)Hebei Health Care Commission Scientific Research Funding Project(Grant No.20170827)+1 种基金Funding Project of Affiliated Hospital of Hebei University(Grant No.2016Q016)Funding Project of Affiliated Hospital of Hebei University(No.2022QC66).
文摘Objective:To investigate the effect of abnormal ovarian granulosa cell metabolism on in vitro fertilization and embryo transfer(IVF-ET)outcomes in obese polycystic ovary syndrome(PCOS)patients.Methods:Patients with PCOS who met the study criteria were screened according to the inclusion criteria.A total of 32 patients with obese PCOS were recruited into the study group,and 39 patients with non-obese PCOS were recruited into the control group.The general data(age,body mass index,and years of infertility),insulin resistance index(HOMA-IR),follicle-stimulating hormone(FSH),luteinizing hormone(LH),granulosa cell mitochondrial function,and IVF-ET outcome of patients in the study group and control group were retrospectively analyzed.Results:The differences in age and years of infertility between the study group and the control group were insignificant(P>0.05),and the body mass index(BMI)of the study group and control group was 30.5±1.24 kg/m2 and 22.3±1.12 kg/m2,respectively,in which the difference was statistically significant(P<0.05);the HOMA-IR of the study group was significantly higher than that of the control group(P<0.05);the reactive oxygen species(ROS)in the study group was significantly higher than that in the control group(P<0.05),and the ATP content in the study group was significantly lower than that in the control group(P<0.05);comparing the FSH and LH levels between the two groups,the difference was not statistically significant(P>0.05);the rate of IVF-ET failure was significantly higher in the study group than in the control group.Conclusion:PCOS is a complex endocrine disorder,and obesity is one of the independent risk factors for the development of PCOS.
基金supported by the National Natural Science Foundation No. 81400041 and No. 81871212the National Natural Science Foundation of China Youth Fund Project No. 81400038cohort study project of the Peking University Third Hospital Y70545-04。
文摘Objective Prior pulmonary tuberculosis(PTB) on chest X-ray(CXR) was commonly found in infertile patients receiving examinations before in vitro fertilization and embryo transfer(IVF-ET). It was unclear whether untreated PTB would affect pregnancy outcomes after IVF-ET.Method We conducted a retrospective cohort study of 14,254 infertile patients who had received IVFET at Peking University Third Hospital in 2017. Prior PTB was defined as the presence of signs suggestive of old or inactive PTB on CXR, with or without a clinical TB history. Patients who had prior PTB on CXR but had not received a clinical diagnosis and anti-TB therapy were included for analysis. Live birth,clinical pregnancy, and miscarriage rates were compared between the untreated PTB and non-PTB groups.Results The untreated PTB group had significantly lower clinical pregnancy(31.7% vs. 38.1%) and live birth(23.8% vs. 30.6%) rates than the non-PTB group(both P < 0.001). Multivariate analysis revealed that untreated PTB was a risk factor for decreased live birth rate [odds ratio(OR), 0.80;95% confidence interval(CI), 0.66–0.98;P = 0.028] in all patients and for increased miscarriage(OR, 4.19;95% CI,1.69–10.39;P = 0.002) and decreased live birth(OR, 0.45;95% CI, 0.24–0.83;P = 0.011) rates in patients with unexplained infertility.Conclusions Untreated PTB was associated with adverse pregnancy outcomes after IVF-ET, especially in patients with unexplained infertility, highlighting the clinical significance of PTB in this specific patient population.
基金Supported by National Natural Science Foundation of China,No. 81971386 and No. 81871210
文摘BACKGROUND Intramural pregnancy is a rare type of ectopic pregnancy,which is diagnosed by transvaginal ultrasound and magnetic resonance imaging.Management strategies vary depending on the site of the pregnancy,the gestational age and the desire to maintain fertility.The incidence of intramural pregnancy in assisted reproductive technology is higher than that in natural pregnancy.CASE SUMMARY We present a case of intramural pregnancy after in vitro fertilization and elective single embryo transfer following salpingectomy.The patient was completely asymptomatic and her serumβ-human chorionic gonadotropin level increased from 290 m IU/m L to 1759 m IU/m L.Three-dimensional transvaginal ultrasound indicated a heterogeneous echogenic mass arising from the uterine fundus which was surrounded by myometrium and a slender and extremely hypoechoic area stretching to the uterine cavity which was thought to be a fistulous tract.Therefore,we considered a diagnosis of intramural pregnancy and laparoscopic surgery was conducted at 7 wk gestation.CONCLUSION Early diagnosis and treatment of intramural pregnancy is significant for maintaining fertility.
文摘BACKGROUND Heterotopic pregnancy(HP)refers to the coexistence of ectopic pregnancy and intrauterine pregnancy.Salpingectomy is proposed as a pretreatment before in vitro fertilization and embryo transfer(IVF-ET)to reduce the risk of HP.HP after IVF-ET occurs in women who had already underwent bilateral salpingectomy,even though it is extremely rare.CASE SUMMARY A case of a 29-year-old woman with recurrent interstitial HP after IVF-ET following salpingectomy is presented.The main symptom was a sudden and worsening pelvic pain.Physical examinations revealed signs of peritoneal bleeding and irritation with stable vital signs.Transvaginal ultrasound showed a live intrauterine pregnancy and another live embryo with cardiac activity in the left cornu extending beyond the lateral edge of the uterus.Her hemoglobin concentration was 8.0 g/dL,and serum human chorionic gonadotropin value was 171116.9 mIU/mL.With the diagnosis of ruptured HP with internal bleeding,an emergency laparoscopic resection of left cornu was performed.The interstitial pregnancy was removed with caution to protect the intrauterine pregnancy.After the surgical treatment,the intrauterine pregnancy continued with no complications.A healthy baby was delivered by caesarean section at 39 wk.Outcomes of another three cases are further summarized.CONCLUSION Post-salpingectomy HP is a rare but challenging condition.Surgical treatment is preferred in the case with a viable intrauterine pregnancy.
文摘Pregnancy is an acquired hypercoagulable state. Most patients with thrombosis that develops during pregnancy present with deep vein leg thrombosis and/or pulmonary embolism, whereas the development of mesenteric vein thrombosis(MVT) in pregnant patients is rare. We report a case of MVT in a 34-year-old woman who had achieved pregnancy via in vitro fertilization-embryo transfer(IVFET). At 7 wk of gestation, the patient was referred to us due to abdominal pain accompanied by vomiting and hematochezia, and she was diagnosed with superior MVT. Following resection of the gangrenous portion of the small intestine, anticoagulation therapy with unfractionated heparin and thrombolysis therapy via a catheter placed in the superior mesenteric artery were performed, and the patient underwent an artificial abortion. Oral estrogen had been administered for hormone replacement as part of the IVF-ET procedure, and additional precipitating factors related to thrombosis were not found. Pregnancy itself, in addition to the administered estrogen, may have caused MVT in this case. We believe that MVT should be included in the differential diagnosis of a pregnant patient who presents with an acute abdomen.
文摘Infertility is considered to be a growing problem worldwide. In sub-Saharan Africa, at least 20%-50% of couples of reproductive age experience a fertility problem and 30% are diagnosed with infertility. This study explores the experiences of women in South Africa who are involuntary childless and explores their psychological and emotional experiences of In Vitro Fertilisation and Embryo Transfer (IVF-ET). Utilising a qualitative methodology, a diverse group of 21 married women diagnosed with infertility and who had undergone at least two cycles of IVF-ET were recruited. Semi-structured, in-depth individual interviews were conducted and the data were analysed using thematic analysis. The results of the study indicated that the women perceived themselves as not conforming to a dominant belief system and as a result felt compelled to explore all the medical options available. They reported emotional turmoil characterised by primary binary emotions of anxiety-excitement and nervousness-optimistic. These emotions were experienced throughout the five stages of the IVF-ET treatment cycles. A synopsis of the psychological and emotional responses to the IVF-ET treatment is discussed. The findings of this study suggest the need for the incorporation of a mandatory psychosocial intervention as part of infertility management. Greater attention to the psychological and emotional repercussions of infertility treatment could lead to a more personalised client-approach which, in turn, would prepare infertile women and couples for the emotional demands of the treatment.
文摘Objective:To explore the clinical outcomes of the infertile women with retrieved oocytes less than or equal to 5 undergoing in vitro fertilization-embryo transfer(IVF-ET) or intracytoplasmic sperm injection(1CSI). Methods:The clinical data of 216 embryo transfer cycles with retrieved oocytes less than or equal to 5 during the procedure of IVF/ICSI in Reproductive Medicine Center of the 105th Hospital of PLA from Jul.2008 to Dec.2011 were analyze retrospectively.All the patients were divided into group A(< 35 years),group B(35-39 years) and group C(≥40 years) according to the ages,and 409 IVF/ICSI cycles with patients’ age less than 35 years old and 6-15 retrieved oocytes in the same period were served as controlled group.Then the patients≥35 years were subdivided into gonadotropin-releasing hormone agonist(GnRH-a) long protocol group,GnRH-a short group and GnRH antagonist group according to the protocols of controlled ovarian hyperstimulation(COH).The clinical date and the outcomes were analyzed and compared among all groups. Results:There were significantly differences in clinical pregnancy rate(38.3%vs.19.4%) and early abortion rate(16.1%vs.50.0%) between group A and group C(P<0.05),and there were no significant differences in clinical pregnancy rate(38.3%vs.41.6%)and early abortion rate(16.1%vs.10.0%) between group A and control group(P>0.05).There were no significant differences in clinical pregnancy rates(29.01%vs.26.1%vs.25.9%) and early abortion rates(33.3%vs.33.3%vs.40.0%) among GnRH-a long protocol group,GnRH-a short group and GnRH antagonist group(P>0.05). Conclusions:Relatively satisfactory clinical outcomes of IVF/ICSI would still be got for the patients <35 years with retrieved oocytes less than or equal to 5,but whatever COH protocols such as GnRH-a long protocol,GnRH-a short and GnRH antagonist could not improve the outcomes of IVF/ICSI for the patients aged≥35 with retrieved oocytes less than or equal to 5.
文摘1.Introduction Initially,in vitro fertilization and embryo transfer(IVF-ET)was designed to solve tubal factors infertility(TFI)by placing the embryo(s)within the uterine cavity.However,in some cases,an ectopic implantation occurs as the embryo can enter the tube.Ectopic pregnancy(EP)is the location of the pregnancy outside the intrauterine cavity.The prevalence of EP following assisted reproductive technology(ART)ranges between 2.1%and 8.6%of all pregnancies and it can reach up to 11%inwomen with tubal factors infertility history.
文摘Purpose: Insulin resistance (IR) plays an important role in the pathogenesis of polycystic ovary syndrome (PCOS);therefore, insulin-sensitizing agents are widely used to improve IR in women with PCOS. However, whether IR in patients without PCOS should be treated remains uncertain. This study aims to clarify whether IR in patients without PCOS affects the outcomes of in-vitro fertilization-embryo transfer (IVF-ET) and pregnancy. Methods: Between January 2011 and December 2013, we retrospectively reviewed the medical records of 116 non-PCOS patients who underwent the first IVF–ET cycle. IR was calculated using the homeostasis model assessment (HOMA) index [HOMA-IR = (insulin × glucose)/405]. A HOMA index of >2.5 was used to indicate IR. Based on the HOMA index calculation, 28 patients were IR(+) and 88 patients had normal insulin sensitivity. We retrospectively compared the response with controlled ovarian hyperstimulation, retrieved oocytes number, fertilization rates, pregnancy rate, live birth rates, and gestational diabetes mellitus (GDM) incidence. Results: There were no significant differences in human menopausal gonadotropin administration, peak estradiol, retrieved oocyte number, fertilized embryo number, good quality embryo number, implantation rate, clinical pregnancy rate, miscarriage rate, delivery rate, or ovarian hyperstimulation syndrome and GDM incidences between the groups. Conclusion: IR in non-PCOS patients has no effect on IVF-ET outcomes or perinatal prognosis.
基金This study was funded by Spanish Ministry of Economy and Competitiveness(MINECO)and European Regional Development Fund(FEDER)grant AGL2015–66341-R and Fundación Seneca,Agencia de Ciencia y Tecnología de la Region de Murcia grant 20040/GERM/16.EPO received funding from“Ayudas para estancias en el extranjero de jóvenes investigadores y estudiantes de doctorado en las líneas de actuación de Campus Mare Nostrum”,R-47/2018,to a doctoral stay at the Babraham Institute(Cambridge,U.K.).
文摘Background:In vitro embryo production(IVP)and embryo transfer(ET)are two very common assisted reproductive technologies(ART)in human and cattle.However,in pig,the combination of either procedures,or even their use separately,is still considered suboptimal due to the low efficiency of IVP plus the difficulty of performing ET in the long and contorted uterus of the sow.In addition,the potential impact of these two ART on the health of the offspring is unknown.We investigated here if the use of a modified IVP system,with natural reproductive fluids(RF)as supplements to the culture media,combined with a minimally invasive surgery to perform ET,affects the output of the own IVP system as well as the reproductive performance of the mother and placental molecular traits.Results:The blastocyst rates obtained by both in vitro systems,conventional(C-IVP)and modified(RF-IVP),were similar.Pregnancy and farrowing rates were also similar.However,when compared to in vivo control(artificial insemination,AI),litter sizes of both IVP groups were lower,while placental efficiency was higher in AI than in RF-IVP.Gene expression studies revealed aberrant expression levels for PEG3 and LUM in placental tissue for C-IVP group when compared to AI,but not for RF-IVP group.Conclusions:The use of reproductive fluids as additives for the culture media in pig IVP does not improve reproductive performance of recipient mothers but could mitigate the impact of artificial procedures in the offspring.
文摘Objective To investigate the factors that influence the potential for cryoembryo implantation and multiple pregnancy. Methods In this retrospective study, a total of 93 7 thawing cycles (859 couples) in which 3286 d 3-embryos were thawed. Rates of implantation, clinical pregnancy and multiple conception following FET were observed. Results There were significant differences in female age (P〈0.05) and number of good quality embryos (P〈0. 05) between cycles that resulted in pregnancy and those did not. There was a trend toward decreasing rates of implantation, clinical pregnancy and multiple pregnancy with increasing female age. Compared with transferring 1 good quality embryo, clinical pregnancy rate of transferring 2 and 3 good quality embryos was increased significantly (P〈0. 001), there was no significant difference in clinical pregnancy rate between transferring 2 and 3 good quality embryos. Multiple pregnancy rate was increased significantly in the group of transferring 3 good quality embryos (P〈0.05),but there was no significant differences in multiple pregnancy rate between transferring 1 and 2 good quality embryos. Younger women (≤ 30 years) also had a significantly higher multiple pregnancy rates (28.13%) than the older ones(〉35 years) (13.64%). With an increase in age from ≤ 30 years to〉40 years, clinical pregnancy rate declined from 47 61% to 25.00%.Conclusion Female age and the number of gooa quality embryos transferred are important factors influencing the clinical and multiple pregnancy rate, reducing the number of good quality embryos transferred may decrease the rate of multiple pregnancy but do not affect the clinical pregnancy rate.
文摘Objective:To compare clinical pregnancy rates following sequential day-3 and day-5 embryo transfer with double or sequential cleavage-stage transfers.Methods:This study enrolled 242 patients undergoing gonadotropin-releasing hormone antagonist protocol and fresh embryo transfer.Basal follicle stimulating hormone,luteinizing hormone,serum estradiol and anti-Müllerian hormone levels and controlled ovarian stimulation outcomes were noted.Of 242 women,135 underwent double embryo transfer on day 2 or day 3(the double group),54 women underwent sequential embryo transfer on day 2 and day 3(the D2/D3 group),and 53 underwent sequential embryo transfer on day 3 and day 5(the D3/D5 group).Clinical pregnancy rates were compared among the groups.Results:Female age,body mass index,basal follicle stimulating hormone,luteinizing hormone and estradiol levels were similar among the groups(P>0.05).The D3/D5 group had a significantly higher number of metaphaseⅡoocytes,fertilized oocytes and good quality embryos on day 3 compared with the double group and the D2/D3 group(P<0.001).Clinical pregnancy rates in the double,D2/D3 and D3/D5 groups were 26.6%(36/135),16.6%(9/54)and 37.7%(20/53),respectively.There was no significant difference in clinical pregnancy rates between the double group and the D2/D3 group(P=0.204)or the D3/D5 group(P=0.188).The D3/D5 group had significantly higher clinical pregnancy rates compared with the D2/D3 group(P=0.025).Conclusions:Sequential cleavage-stage transfer(D2/D3)or cleavage stage and blastocyst transfer(D3/D5)does not improve clinical pregnancy rates compared with double cleavage-stage embryo transfer.Although sequential transfer seems to be an effective option in certain patient populations,routine application of this technique might not be a suitable approach in an unselected population to improve assisted reproductive technology outcomes.
文摘There is little information in the scientific literature concerning sheep pregnancy and lambing success with regard to the timeframe from when in vitro produced embryos are transported to the designated location for embryo transfer (ET). The aim of this study was to transfer in vitro produced embryos under two different conditions that could typically occur using the aforementioned assisted reproductive techniques (ARTs). Abattoir ovaries were used to procure oocytes for in vitro embryo production and subsequent transfer to synchronized ewes. The study consisted of two experiments: Experiment 1 (Exp1)—embryos taken from the laboratory to a nearby surgical room for immediate ET, and Experiment 2 (Exp2)—ET after 5 hours (h) of transport to a rural farm. Lambing in relation to detected pregnancies, births compared to pregnancies, and the proportion of twin offspring were all higher in Exp2. Notably, in both Exp1 and Exp2, there was not a significant difference (P > 0.05) between the number of embryos transferred, i.e., 3 versus 4, respectively, and the number of ewes that underwent parturition in each group. Also, in both experiments there was not a significant difference (P > 0.05) in the number of ewes that underwent parturition based on the number (i.e., ≥1) of corpora lutea present. The results of the present study demonstrate the importance of evaluating different conditions when applying ARTs, as there are many variables that can influence the outcome. Importantly, Exp2 results show that ovine ET in places located far away from the embryo production site can be useful and successful provided that embryo transport, ET, and recipient conditions are adequate.