Accumulating studies have proved that perinatal exposure to environmental dose causes long-term potentiation in anxiety/depression-related behaviors in rats. Hyperactivity of the hypothalamic-pituitary-adrenal (HPA)...Accumulating studies have proved that perinatal exposure to environmental dose causes long-term potentiation in anxiety/depression-related behaviors in rats. Hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis is one of the most consistent biological findings in anxiety- and depression-related disorders. The HPA axis is reported to be susceptible to developmental reprogramming. The present study focused on HPA reactivity in postnatal day (PND) 80 male rats exposed perinatally to environmental-dose BPA. When female breeders were orally administered 2 μg/(kg.day) BPA from gestation day 10 to lactation day 7, their offspring (PND 80 BPA-exposed rats) showed obvious anxiety/depression-like behaviors. Notably, significant increase in serum corticosterone and adrenocorticotropin, and corticotropin-releasing hormone mRNA were detected in BPA-exposed rats before or after the mild stressor. Additionally, the level of glucocorticoid receptor mRNA in the hippocampus, but not the hypothalamus, was decreased in BPA-exposed rats. The levels of hippocampal mineralocorticoid receptor mRNA, neuronal nitric oxide synthase and phosphorylated cAMP response element binding protein were increased in BPA-exposed rats. In addition, the testosterone level was in BPA-exposed rats. The results indicate that reprogramming-induced hyperactivity of the HPA axis is an important link between perinatal BPA exposure and persistent potentiation in anxiety and depression.展开更多
Objective: To investigate the effects of sleep electroencephalogram-modulated repetitive transcranial magnetic stimulation (SEM-rTMS) and conventional rTMS (C-rTMS) on the activity of hypothalamic-pituitary-adren...Objective: To investigate the effects of sleep electroencephalogram-modulated repetitive transcranial magnetic stimulation (SEM-rTMS) and conventional rTMS (C-rTMS) on the activity of hypothalamic-pituitary-adrenal (HPA) axis in patients with depression. Methods: In a double-blind, randomized controlled trial, 164 patients diagnosed with depression were randomized to treatment with SEM-rTMS (n=57), C-rTMS (n=55) or sham rTMS (n=52) for 30 rain every day for 10 d. Before and after treatment plasma concentrations of adrenocorticotropic hormone (ACTH) and cortisol (CORT) were measured, and the 24-item Hamilton Depression Rating Scale (HAMD-24) was used for assessment. Results: The HAMD-24 scores and plasma ACTH and CORT concentrations of these depressive patients before treatment were significantly different from those of the normal control group (P〈0.05). The HAMD-24 scores and plasma ACTH and CORT concentrations in the SEM-rTMS group and conventional rTMS group were decreased significantly (P〈0.05). There was a significant positive correlation between the HAMD-24 scores and plasma ACTH (n=240, r=0.105, P=0.048) and CORT concentrations (n-240, r=0.126, P=0.023) in the patients with depression before and after treatment. Conclusion: The antidepressant effect of rTMS, including SEM-rTMS, may be related to its decreasing HPA axis activity. (This trail was registered. No: ChiCTR-TRC-00000465)展开更多
Objective:In this study,we examined the effects of Shizhenqing granule(SZQG)on hypothalamicpituitary-adrenal(HPA)axis and serum inflammatory factors in a rat model of chronic eczema,in order to explore the mechanism o...Objective:In this study,we examined the effects of Shizhenqing granule(SZQG)on hypothalamicpituitary-adrenal(HPA)axis and serum inflammatory factors in a rat model of chronic eczema,in order to explore the mechanism of action of SZQG in treatment of this disease.Methods:Sixty SpragueeDawley male rats were randomly divided into six groups(with 10 rats per group):blank group;model group;positive control group(prednisone);and the low-,medium-,and high-dose SZQG groups.Except for the blank group,rats in all other groups were treated with 2,4-dinitrochlorobenzene to induce chronic eczema.These rats were administered prednisone or SZQG for 7 consecutive days after successful establishment of the chronic eczema model,and samples were collected 12 h after the last administration.The degree of skin lesions and the changes in serum levels of corticotropin-releasing hormone(CRH),adrenocorticotropic hormone(ACTH),cortisol(CORT),interleukin(IL)-4,interferon(IFN)-g,IL-25,and IL-31 among the groups were compared.Results:SZQG effectively increased the levels of CRH,ACTH,and CORT,which decreased in the serum of rats with chronic eczema,stimulated the function of the HPA axis,and promoted the expression of glucocorticoids.SZQG reduced the serum levels of inflammatory factors including IL-4,IL-25 and IL-31,which were overexpressed in rats with chronic eczema,and increased those of anti-inflammatory factor IFN-g,thereby alleviating the inflammatory symptoms and itching,and ameliorating the clinical symptoms of chronic eczema.Conclusion:SZQG effectively alleviates skin lesions in the chronic eczema rat model by stimulating the function of the HPA axis.展开更多
Objective To investigate the effect of XBXT-2 on the activity of hypothalamic-pituitary-adrenal(HPA)axis in chronic mild stress(CMS)model of rats.Methods Using ELISA to test the serum corticosterone,adrenocorticotropi...Objective To investigate the effect of XBXT-2 on the activity of hypothalamic-pituitary-adrenal(HPA)axis in chronic mild stress(CMS)model of rats.Methods Using ELISA to test the serum corticosterone,adrenocorticotropic hormone(ACTH)and corticotropin-releasing hormone(CRH)level in CMS rats;Using western blot to determine hippocampal glucocorticoids receptors(GR)expression in CMS rats.Results Co-administration of XBXT-2(25,50 mg·kg-1,p.o.,28 days,the effective doses for behavioral responses)significantly decreased the serum corticosterone and ACTH level in CMS rats,while the CRH level was not markedly affected by chronic stress or drugs.Moreover,XBXT-2 significantly increased the GR expression in the hippocampus of CMS rats.The same effects were observed in the positive control drug imipramine(10 mg·kg-1,p.o.).Conclusions The decrease of serum corticosterone and ACTH level,as well as the increase of hippocampal GR expression may be the mechanisms underlying the antidepressant action of XBXT-2,which may associate with HPA axis.展开更多
Background: Based on the effect of seasonal changes on human visceral function, this study investigated the impact of seasonal photoperiod of the pineal body on hypothalamic-pituitary-adrenal axis-hippocampal-receptor...Background: Based on the effect of seasonal changes on human visceral function, this study investigated the impact of seasonal photoperiod of the pineal body on hypothalamic-pituitary-adrenal axis-hippocampal-receptor in rats, aiming to reveal the mechanism by which pineal gland melatonin regulates the seasonal secretion of hippocampal neurotransmitters.Methods: Vernal equinox, summer solstice, autumn equinox, and winter solstice were selected as four experimental time points, and rats were randomly divided into normal control group, sham operation group, and pinealectomized group. The seasonal changes in corticotropin-releasing hormone(CRH),adrenocorticotropic hormone(ACTH), corticosterone, hypothalamic melatonin receptor(MTR), and hippocampal corticosterone receptor(CORTR) were examined by enzyme-linked immunosorbent assay.Results: Comparing the same group between different seasons, we showed that in the normal control group, CRH, ACTH, corticosterone, and MTR were higher, while CORTR was lower in autumn and winter than in spring(all P <.05). Compared with the normal control group, the pinealectomized group showed higher levels of corticosterone(P =.01), MTR(P =.01), and CORTR(P =.03) during spring;reduced levels of MTR and CORTR(both P <.001) during summer;higher levels of ACTH(P =.001) and MTR(P <.001),and lower levels of CRH(P =.001), corticosterone(P <.001), and CORTR(P =.003) during autumn;and lower levels of CRH(P <.001) and MTR(P =.004), and higher level of ACTH(P <.001) in winter.Conclusions: Seasonal photoperiod acts on the pineal gland to secrete different levels of melatonin,resulting in seasonal changes in the hypothalamic-pituitary-adrenal axis-hippocampal-receptor, which may be the pathophysiological basis for the onset of seasonal affective disorder.展开更多
Stress adaptation is fundamental for health, and the hypothalamic-pituitary-adrenal axis (HPA) is one of its main mechanisms. Considerable data indicate that arginine vasopressin (AVP) related disturbances of stress a...Stress adaptation is fundamental for health, and the hypothalamic-pituitary-adrenal axis (HPA) is one of its main mechanisms. Considerable data indicate that arginine vasopressin (AVP) related disturbances of stress adaptation can occur with aging. However, most studies of such kind have been performed on rodents, give contradictory results and fail to consider individual characteristics of the animals. The purpose of this study was to investigate individual HPA responsiveness to acute stress and its vasopressinergic regulation in old female rhesus monkeys that differ in their behavioral responses to stress. Animals with depression-like or anxiety-like behavior (DAB) responded with higher plasma levels of ACTH and AVP, lower levels of corticosteroids and higher cortisol/DHEAS molar ratios to restraint stress and to insulin-induced hypoglycemia compared with animals with healthy adaptive behavior. AVP and ACTH dynamics were closely correlated in most animals. AVP treatment produced differences in HPA responses similar to those produced by the stressors. The ACTH response to hypoglycemic stress in the DAB animal with highest HPA responsiveness was dramatically reduced by prior administration of a V1b receptor antagonist. These results suggest that the dysfunctions of HPA observed in old animals with DAB are caused by increased tone of the vasopressinergic system in regulation of HPA stress reactivity.展开更多
Objective: To investigate the effect of flurbiprofen axetil analgesia after knee replacement on the cytokine contents in serum and joint fluid as well as HPA axis activity. Methods: Patients who underwent knee replace...Objective: To investigate the effect of flurbiprofen axetil analgesia after knee replacement on the cytokine contents in serum and joint fluid as well as HPA axis activity. Methods: Patients who underwent knee replacement in People's Hospital of Dongxihu District between April 2015 and January 2018 were selected as the research subjects and randomly divided into the experimental group who accepted flurbiprofen axetil combined with patient-controlled intravenous analgesia and the control group who accepted patient-controlled intravenous analgesia alone. The contents of cytokines and HPA axis-related hormones in serum were measured before surgery as well as 1 d and 3 d after surgery;the contents of cytokines in joint fluid were measured 1 d and 3 d after surgery. Results: Compared with those of same group before surgery, NGF, NPY, TNF-α, IL-2, IL-4, IL-10, ACTH, COR, INS, GH and PRL levels of both groups were increasing 1 d and 3 d after surgery, and NGF, NPY, TNF-α, IL-2, IL-4, IL-10, ACTH, COR, INS, GH and PRL levels in serum as well as PGE2, OPN, TGF-β1, FGF21, CXCL12 and YKL-40 in joint fluid of experimental group 1 d and 3 d after surgery were lower than those of control group. Conclusion: Flurbiprofen axetil analgesia after knee replacement can reduce the release of cytokines in serum and joint fluid, and inhibit the activity of HPA axis, and its analgesic effect is exact.展开更多
The present study was designed to investigate the possible role ofHPA (hypothalamic-pituitary-adrenal) axis in neuropathic pain in streptozotocin induced diabetic rats. Wistar albino rats of either sex weighing 180-...The present study was designed to investigate the possible role ofHPA (hypothalamic-pituitary-adrenal) axis in neuropathic pain in streptozotocin induced diabetic rats. Wistar albino rats of either sex weighing 180-220 g (n = 6) were employed. Diabetes was induced by administering STZ (streptozotocin) (45 mg/kg, i.p.) once. Neuropathy was induced by the ligation of sciatic nerve in diabetic animals. A glucocorticoid receptor antagonist: ketoconazole 175 mg/kg, p.o. and glucocorticoid receptor agonist: hydrocortisone 1 mg/kg, i.p. were given. Assessment of neuropathic pain was achieved using hot plate and hot immersion tests. Tissue biochemical: lipid peroxidation, NO and glutathione were estimated on 28th day spectrophotometrically. Plasma cortisol level was also estimated using HPLC (high performance liquid chromatography). Sciatic nerve ligation to diabetic animals caused significant increase in nociceptive responses as hyperalgesia and allodynia, tissue lipid peroxidation and NO products, and decrease in GSH (glutathione) level, in comparison to SC (saline control). Ketoconazole administration produced decreased pain responses as well as decrease in oxidative stress and inflammatory mediators. Administration of hydrocortisone resulted in suppression of HPA axis. The activation of HPA axis in diabetic animals resulted in significant pain response. This may be due to increased corticosterone level which in turn desensitizes HPA axis and decreased nociceptive response in diabetic animals observed.展开更多
目的:探讨加味逍遥散对不同性别抑郁样大鼠的行为、肝脏组织转录组、下丘脑-垂体-肾上腺(HPA)轴相关基因的表达及性激素水平的调控作用。方法:以利血平腹腔注射构建不同性别抑郁大鼠模型,对照组和模型组、氟西汀组、加味逍遥散组分别予...目的:探讨加味逍遥散对不同性别抑郁样大鼠的行为、肝脏组织转录组、下丘脑-垂体-肾上腺(HPA)轴相关基因的表达及性激素水平的调控作用。方法:以利血平腹腔注射构建不同性别抑郁大鼠模型,对照组和模型组、氟西汀组、加味逍遥散组分别予蒸馏水、氟西汀、加味逍遥散灌胃给药,连续21 d。采用旷场试验检测大鼠抑郁样行为,RNA-seq进行肝脏组织转录组分析,real time RT-PCR检测海马组织的5-羟色胺转运体(5-HTT)、γ-氨基丁酸A型受体(GABA_(A)R)、γ-氨基丁酸B型受体(GABA_(B)R2)、乙酰胆碱脂酶(AChE)、谷氨酸受体(GluR2)mRNA表达水平,酶联免疫吸附试验检测大鼠血清卵泡刺激素(FSH)、雌二醇(E2)、睾酮(T)激素水平。结果:加味逍遥散有效改善雌性、雄性大鼠抑郁样行为(P<0.05);主要调控肝脏组织细胞色素P450(CYP)家族基因转录;显著降低雌性抑郁大鼠GABA_BR2、AChE基因和雄性抑郁大鼠5-HTT、GABA_AR、GABA_BR2、GluR2基因表达水平(P<0.05);显著升高雌性抑郁大鼠FSH、E2和雄性抑郁大鼠T激素水平(P<0.05)。结论:加味逍遥散调控肝脏组织转录组,通过HPA-HPG轴发挥疏肝解郁、养血调经作用,有效改善不同性别大鼠抑郁样行为。展开更多
Anxiety disorder is a common and serious mental disorder.At present,the pathogenesis of anxiety disorder includes hypothalamus-pituitary-adrenal(HPA)axis,neuroimmune,and brain-gut axis disorders,among others.This pape...Anxiety disorder is a common and serious mental disorder.At present,the pathogenesis of anxiety disorder includes hypothalamus-pituitary-adrenal(HPA)axis,neuroimmune,and brain-gut axis disorders,among others.This paper discusses the correlation between anx-iety disorder and the hypothalamus-pituitary-endocrine axis and finds that immune inflammation can be used as a“bridge”between the hypothalamus-pituitary-endocrine axis and anxiety disorder.展开更多
基金supported by China Postdoctoral Science Foundation(2013M540456)Jiangsu Planned Projects for Postdoctoral Research Funds(1301065B)+3 种基金Grants for 973(2014CB943303)NSFC(810710273117144081000482)
文摘Accumulating studies have proved that perinatal exposure to environmental dose causes long-term potentiation in anxiety/depression-related behaviors in rats. Hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis is one of the most consistent biological findings in anxiety- and depression-related disorders. The HPA axis is reported to be susceptible to developmental reprogramming. The present study focused on HPA reactivity in postnatal day (PND) 80 male rats exposed perinatally to environmental-dose BPA. When female breeders were orally administered 2 μg/(kg.day) BPA from gestation day 10 to lactation day 7, their offspring (PND 80 BPA-exposed rats) showed obvious anxiety/depression-like behaviors. Notably, significant increase in serum corticosterone and adrenocorticotropin, and corticotropin-releasing hormone mRNA were detected in BPA-exposed rats before or after the mild stressor. Additionally, the level of glucocorticoid receptor mRNA in the hippocampus, but not the hypothalamus, was decreased in BPA-exposed rats. The levels of hippocampal mineralocorticoid receptor mRNA, neuronal nitric oxide synthase and phosphorylated cAMP response element binding protein were increased in BPA-exposed rats. In addition, the testosterone level was in BPA-exposed rats. The results indicate that reprogramming-induced hyperactivity of the HPA axis is an important link between perinatal BPA exposure and persistent potentiation in anxiety and depression.
基金Supported by the Social Development Guide Projects of Science and Technology Committee of Jiangsu Province in 2005 (BS2005629)"The Six Major Expert Peaks" Projects of Jiangsu Provincial Government in 2006 [Surentong (2006) 174]
文摘Objective: To investigate the effects of sleep electroencephalogram-modulated repetitive transcranial magnetic stimulation (SEM-rTMS) and conventional rTMS (C-rTMS) on the activity of hypothalamic-pituitary-adrenal (HPA) axis in patients with depression. Methods: In a double-blind, randomized controlled trial, 164 patients diagnosed with depression were randomized to treatment with SEM-rTMS (n=57), C-rTMS (n=55) or sham rTMS (n=52) for 30 rain every day for 10 d. Before and after treatment plasma concentrations of adrenocorticotropic hormone (ACTH) and cortisol (CORT) were measured, and the 24-item Hamilton Depression Rating Scale (HAMD-24) was used for assessment. Results: The HAMD-24 scores and plasma ACTH and CORT concentrations of these depressive patients before treatment were significantly different from those of the normal control group (P〈0.05). The HAMD-24 scores and plasma ACTH and CORT concentrations in the SEM-rTMS group and conventional rTMS group were decreased significantly (P〈0.05). There was a significant positive correlation between the HAMD-24 scores and plasma ACTH (n=240, r=0.105, P=0.048) and CORT concentrations (n-240, r=0.126, P=0.023) in the patients with depression before and after treatment. Conclusion: The antidepressant effect of rTMS, including SEM-rTMS, may be related to its decreasing HPA axis activity. (This trail was registered. No: ChiCTR-TRC-00000465)
基金This study was supported by the Beijing municipal project(2010071620067)Research fund from Qiannan Medical College for Nationalities(QNYZ2018030).
文摘Objective:In this study,we examined the effects of Shizhenqing granule(SZQG)on hypothalamicpituitary-adrenal(HPA)axis and serum inflammatory factors in a rat model of chronic eczema,in order to explore the mechanism of action of SZQG in treatment of this disease.Methods:Sixty SpragueeDawley male rats were randomly divided into six groups(with 10 rats per group):blank group;model group;positive control group(prednisone);and the low-,medium-,and high-dose SZQG groups.Except for the blank group,rats in all other groups were treated with 2,4-dinitrochlorobenzene to induce chronic eczema.These rats were administered prednisone or SZQG for 7 consecutive days after successful establishment of the chronic eczema model,and samples were collected 12 h after the last administration.The degree of skin lesions and the changes in serum levels of corticotropin-releasing hormone(CRH),adrenocorticotropic hormone(ACTH),cortisol(CORT),interleukin(IL)-4,interferon(IFN)-g,IL-25,and IL-31 among the groups were compared.Results:SZQG effectively increased the levels of CRH,ACTH,and CORT,which decreased in the serum of rats with chronic eczema,stimulated the function of the HPA axis,and promoted the expression of glucocorticoids.SZQG reduced the serum levels of inflammatory factors including IL-4,IL-25 and IL-31,which were overexpressed in rats with chronic eczema,and increased those of anti-inflammatory factor IFN-g,thereby alleviating the inflammatory symptoms and itching,and ameliorating the clinical symptoms of chronic eczema.Conclusion:SZQG effectively alleviates skin lesions in the chronic eczema rat model by stimulating the function of the HPA axis.
文摘Objective To investigate the effect of XBXT-2 on the activity of hypothalamic-pituitary-adrenal(HPA)axis in chronic mild stress(CMS)model of rats.Methods Using ELISA to test the serum corticosterone,adrenocorticotropic hormone(ACTH)and corticotropin-releasing hormone(CRH)level in CMS rats;Using western blot to determine hippocampal glucocorticoids receptors(GR)expression in CMS rats.Results Co-administration of XBXT-2(25,50 mg·kg-1,p.o.,28 days,the effective doses for behavioral responses)significantly decreased the serum corticosterone and ACTH level in CMS rats,while the CRH level was not markedly affected by chronic stress or drugs.Moreover,XBXT-2 significantly increased the GR expression in the hippocampus of CMS rats.The same effects were observed in the positive control drug imipramine(10 mg·kg-1,p.o.).Conclusions The decrease of serum corticosterone and ACTH level,as well as the increase of hippocampal GR expression may be the mechanisms underlying the antidepressant action of XBXT-2,which may associate with HPA axis.
基金supported by the National Natural Science Foundation of China (81774162)
文摘Background: Based on the effect of seasonal changes on human visceral function, this study investigated the impact of seasonal photoperiod of the pineal body on hypothalamic-pituitary-adrenal axis-hippocampal-receptor in rats, aiming to reveal the mechanism by which pineal gland melatonin regulates the seasonal secretion of hippocampal neurotransmitters.Methods: Vernal equinox, summer solstice, autumn equinox, and winter solstice were selected as four experimental time points, and rats were randomly divided into normal control group, sham operation group, and pinealectomized group. The seasonal changes in corticotropin-releasing hormone(CRH),adrenocorticotropic hormone(ACTH), corticosterone, hypothalamic melatonin receptor(MTR), and hippocampal corticosterone receptor(CORTR) were examined by enzyme-linked immunosorbent assay.Results: Comparing the same group between different seasons, we showed that in the normal control group, CRH, ACTH, corticosterone, and MTR were higher, while CORTR was lower in autumn and winter than in spring(all P <.05). Compared with the normal control group, the pinealectomized group showed higher levels of corticosterone(P =.01), MTR(P =.01), and CORTR(P =.03) during spring;reduced levels of MTR and CORTR(both P <.001) during summer;higher levels of ACTH(P =.001) and MTR(P <.001),and lower levels of CRH(P =.001), corticosterone(P <.001), and CORTR(P =.003) during autumn;and lower levels of CRH(P <.001) and MTR(P =.004), and higher level of ACTH(P <.001) in winter.Conclusions: Seasonal photoperiod acts on the pineal gland to secrete different levels of melatonin,resulting in seasonal changes in the hypothalamic-pituitary-adrenal axis-hippocampal-receptor, which may be the pathophysiological basis for the onset of seasonal affective disorder.
文摘Stress adaptation is fundamental for health, and the hypothalamic-pituitary-adrenal axis (HPA) is one of its main mechanisms. Considerable data indicate that arginine vasopressin (AVP) related disturbances of stress adaptation can occur with aging. However, most studies of such kind have been performed on rodents, give contradictory results and fail to consider individual characteristics of the animals. The purpose of this study was to investigate individual HPA responsiveness to acute stress and its vasopressinergic regulation in old female rhesus monkeys that differ in their behavioral responses to stress. Animals with depression-like or anxiety-like behavior (DAB) responded with higher plasma levels of ACTH and AVP, lower levels of corticosteroids and higher cortisol/DHEAS molar ratios to restraint stress and to insulin-induced hypoglycemia compared with animals with healthy adaptive behavior. AVP and ACTH dynamics were closely correlated in most animals. AVP treatment produced differences in HPA responses similar to those produced by the stressors. The ACTH response to hypoglycemic stress in the DAB animal with highest HPA responsiveness was dramatically reduced by prior administration of a V1b receptor antagonist. These results suggest that the dysfunctions of HPA observed in old animals with DAB are caused by increased tone of the vasopressinergic system in regulation of HPA stress reactivity.
文摘Objective: To investigate the effect of flurbiprofen axetil analgesia after knee replacement on the cytokine contents in serum and joint fluid as well as HPA axis activity. Methods: Patients who underwent knee replacement in People's Hospital of Dongxihu District between April 2015 and January 2018 were selected as the research subjects and randomly divided into the experimental group who accepted flurbiprofen axetil combined with patient-controlled intravenous analgesia and the control group who accepted patient-controlled intravenous analgesia alone. The contents of cytokines and HPA axis-related hormones in serum were measured before surgery as well as 1 d and 3 d after surgery;the contents of cytokines in joint fluid were measured 1 d and 3 d after surgery. Results: Compared with those of same group before surgery, NGF, NPY, TNF-α, IL-2, IL-4, IL-10, ACTH, COR, INS, GH and PRL levels of both groups were increasing 1 d and 3 d after surgery, and NGF, NPY, TNF-α, IL-2, IL-4, IL-10, ACTH, COR, INS, GH and PRL levels in serum as well as PGE2, OPN, TGF-β1, FGF21, CXCL12 and YKL-40 in joint fluid of experimental group 1 d and 3 d after surgery were lower than those of control group. Conclusion: Flurbiprofen axetil analgesia after knee replacement can reduce the release of cytokines in serum and joint fluid, and inhibit the activity of HPA axis, and its analgesic effect is exact.
文摘The present study was designed to investigate the possible role ofHPA (hypothalamic-pituitary-adrenal) axis in neuropathic pain in streptozotocin induced diabetic rats. Wistar albino rats of either sex weighing 180-220 g (n = 6) were employed. Diabetes was induced by administering STZ (streptozotocin) (45 mg/kg, i.p.) once. Neuropathy was induced by the ligation of sciatic nerve in diabetic animals. A glucocorticoid receptor antagonist: ketoconazole 175 mg/kg, p.o. and glucocorticoid receptor agonist: hydrocortisone 1 mg/kg, i.p. were given. Assessment of neuropathic pain was achieved using hot plate and hot immersion tests. Tissue biochemical: lipid peroxidation, NO and glutathione were estimated on 28th day spectrophotometrically. Plasma cortisol level was also estimated using HPLC (high performance liquid chromatography). Sciatic nerve ligation to diabetic animals caused significant increase in nociceptive responses as hyperalgesia and allodynia, tissue lipid peroxidation and NO products, and decrease in GSH (glutathione) level, in comparison to SC (saline control). Ketoconazole administration produced decreased pain responses as well as decrease in oxidative stress and inflammatory mediators. Administration of hydrocortisone resulted in suppression of HPA axis. The activation of HPA axis in diabetic animals resulted in significant pain response. This may be due to increased corticosterone level which in turn desensitizes HPA axis and decreased nociceptive response in diabetic animals observed.
文摘目的:探讨加味逍遥散对不同性别抑郁样大鼠的行为、肝脏组织转录组、下丘脑-垂体-肾上腺(HPA)轴相关基因的表达及性激素水平的调控作用。方法:以利血平腹腔注射构建不同性别抑郁大鼠模型,对照组和模型组、氟西汀组、加味逍遥散组分别予蒸馏水、氟西汀、加味逍遥散灌胃给药,连续21 d。采用旷场试验检测大鼠抑郁样行为,RNA-seq进行肝脏组织转录组分析,real time RT-PCR检测海马组织的5-羟色胺转运体(5-HTT)、γ-氨基丁酸A型受体(GABA_(A)R)、γ-氨基丁酸B型受体(GABA_(B)R2)、乙酰胆碱脂酶(AChE)、谷氨酸受体(GluR2)mRNA表达水平,酶联免疫吸附试验检测大鼠血清卵泡刺激素(FSH)、雌二醇(E2)、睾酮(T)激素水平。结果:加味逍遥散有效改善雌性、雄性大鼠抑郁样行为(P<0.05);主要调控肝脏组织细胞色素P450(CYP)家族基因转录;显著降低雌性抑郁大鼠GABA_BR2、AChE基因和雄性抑郁大鼠5-HTT、GABA_AR、GABA_BR2、GluR2基因表达水平(P<0.05);显著升高雌性抑郁大鼠FSH、E2和雄性抑郁大鼠T激素水平(P<0.05)。结论:加味逍遥散调控肝脏组织转录组,通过HPA-HPG轴发挥疏肝解郁、养血调经作用,有效改善不同性别大鼠抑郁样行为。
文摘Anxiety disorder is a common and serious mental disorder.At present,the pathogenesis of anxiety disorder includes hypothalamus-pituitary-adrenal(HPA)axis,neuroimmune,and brain-gut axis disorders,among others.This paper discusses the correlation between anx-iety disorder and the hypothalamus-pituitary-endocrine axis and finds that immune inflammation can be used as a“bridge”between the hypothalamus-pituitary-endocrine axis and anxiety disorder.