OBJECTIVE:To explore the mechanism by which Qinghua decoction(清化饮)regulates neuroendocrine inflammation in chronic nonbacterial prostatitis(CNP)model rats and provide an experimental basis for clinical treatment.ME...OBJECTIVE:To explore the mechanism by which Qinghua decoction(清化饮)regulates neuroendocrine inflammation in chronic nonbacterial prostatitis(CNP)model rats and provide an experimental basis for clinical treatment.METHODS:The rats were randomly divided into six groups:normal control,model,Qianlie Tongyu capsule,low-dose Qinghua decoction,medium-dose Qinghua decoction,and high-dose Qinghua decoction group with six rats in each group.Rats in each group were sacrificed on the 29th day of treatment,and blood and prostate tissues were collected.Serum levels of tumor necrosis factor-alpha and interleukins 1-beta,6,8,and 10(TNF-αand IL-1β,-6,-8,and-10,respectively)were measured using enzyme-linked immunosorbent assay.The pathological changes in the rat prostate tissue in each group were observed under a light microscope.The expression levels of chromogranin A(CgA),nerve growth factor(NGF),and tyrosine kinase A(TrkA)were detected using reverse transcription quantitative polymerase chain reaction.Western blotting was used to detect protein expression of CgA,NGF,and TrkA.RESULTS:In the model group,the prostate capsule membrane and stroma were significantly dilated with more inflammatory cells infiltrating the stroma and perivessels.TNF-α,IL-1β,-6,and-8,CgA,NGF,and TrkA levels increased,whereas the content of IL-10 decreased,which was statistically significant compared to that in the normal control group(P<0.05).Prostate tissue cells in the high-dose group were neatly arranged with no obvious inflammatory cell infiltration.When compared with the model group,the high-dose Qinghua decoction group showed a significant improvement in these indices(P<0.05).CONCLUSION:Qinghua decoction led to inhibition of pathological changes in the prostate tissue of rats with CNP,regulation of inflammatory cytokine expression,and inhibition in the expression of CgA,NGF,and TrkA.This mechanism may be primarily related to regulation of the CgA/NGF/TrkA signaling pathway mediated by various inflammatory factors.展开更多
OBJECTIVE:To explore the protective mechanisms of the Traditional Chinese Medicine Bushenhuoxue(BSHX)in a rat model of vascular dementia(VD).METHODS:A rat model of VD was developed using bilateral common carotid arter...OBJECTIVE:To explore the protective mechanisms of the Traditional Chinese Medicine Bushenhuoxue(BSHX)in a rat model of vascular dementia(VD).METHODS:A rat model of VD was developed using bilateral common carotid artery occlusion(BCCAO).Rats were administered BSHX(10.14 or 5.07 g/kg),nimodipine(11.06 mg/kg;positive control),or saline(control)by gavage daily for 30 d post-surgery.Learning and memory abilities were assessed using the Morris water maze.Morphological changes in the hippocampus were observed using light microscopy(hematoxylin and eosin staining)and transmission electron microscopy(TEM).The m RNA and protein expression levels of brain-derived neurotrophic factor(BDNF),tyrosine receptor kinase B(Trk B),phosphatidyl inositol 3-kinase(PI3 K),serine/threonine kinase(AKT),and c AMP response element binding protein(CREB)were measured by real-time polymerase chain reaction(RT-PCR)and Western blot,respectively.RESULTS:Compared with the sham group,rats with BCCAO exhibited impaired learning and memory abilities(Morris water maze)and showed abnormalities in neuronal morphology(light microscopy)and ultrastructure(TEM)in the hippocampus.They also had decreased m RNA and protein expressions of BDNF,Trk B,PI3 K,AKT,and CREB in hippocampal tissue(all P<0.05).In rats with BCCAO,administration of BSHX attenuated deficits in learning and memory,improved the morphology and ultrastructure of hippocampal neurons,and enhanced m RNA and protein expression levels of BDNF,Trk B,PI3 K,AKT,and CREB(all P<0.05).CONCLUSION:BSHX may protect hippocampal neurons and improve learning and memory abilities,at least in part via the activation of BDNF/Trk B/PI3 K/AKT/CREB signaling.展开更多
OBJECTIVE: To investigate the effect of Danggui Buxue Tang(DBT), a decoction from Traditional Chinese Medicine, on bleomycin-induced pulmonary fibrosis in rats, and to propose the possible underlying mechanism.METHODS...OBJECTIVE: To investigate the effect of Danggui Buxue Tang(DBT), a decoction from Traditional Chinese Medicine, on bleomycin-induced pulmonary fibrosis in rats, and to propose the possible underlying mechanism.METHODS: Forty male Sprague-Dawley rats were randomly divided into sham group, model group,prednisone group and DBT group. Pulmonary fibrosis rat model was established by intratracheal injection with bleomycin. Body weight and lung index were monitored. Histopathologic examination and collagen deposition were determined using Hematoxylin and eosin(HE) and Masson's trichrome staining. Immunohistochemistry staining was applied to observe the expression of alpha-smooth muscle actin(α-SMA). m RNA expression of α-SMA,collagen Ⅰ and collagen Ⅲ were measured by realtime fluorescence quantitative PCR(RT-q PCR). Inflammatory cytokines, including tumor necrosis factor alpha(TNF-α), interleukin-6(IL-6) and IL-1β in serum were detected by Enzyme-linked immunosorbent assay. Alkali hydrolysis method was conducted to investigate the content of hydroxyproline(HYP). Transforming growth factor-β1(TGF-β1),Smad3 and plasminogen activator inhibitor-1(PAI-1) protein level were examined by Western blot assay.RESULTS: DBT significantly reduced the severity of bleomycin-induced pulmonary fibrosis and inflammation as indicated by minimizing the lost of weight, and by lowering the levels of lung index, inflammation score, Ashcroft score, collagen volume fraction(%), HYP, α-SMA, collagen Ⅰ, collagen Ⅲ,TNF-α, IL-6, IL-1β, TGF-β1, Smad3 and PAI-1, consistent with the effect of prednisone.CONCLUSION: Our findings suggest that DBT is able to ameliorate the pulmonary fibrosis, the possible mechanism may involve inhibition of pulmonary inflammation and collagen deposition, possibly via suppressing TGF-β1/Smad3/PAI-1 signaling pathway.展开更多
OBJECTIVE: To evaluate the effects of the Xiaoyaosan(XYS) decoction on the food intake and body weight of rats with chronic immobilization stress(CIS), as well as the concentration of serum leptin and the expression o...OBJECTIVE: To evaluate the effects of the Xiaoyaosan(XYS) decoction on the food intake and body weight of rats with chronic immobilization stress(CIS), as well as the concentration of serum leptin and the expression of feeding-related neuropeptides [leptin receptor(Ob-R), proopiomelanocortin(POMC), and α-melanocyte-stimulating hormone(α-MSH)] in the hypothalamic arcuate nucleus(ARC).METHODS: We subjected rats to CIS for 3 h a day.The rats were randomly divided into the following groups: control group, 7-day stress group, 21-day stress group and XYS-treated group. The rats in the two stress groups were exposed to CIS for 7 or 21 d.The rats in the XYS-treated group were also exposed to CIS for 21 d and were intragastrically administered the XYS decoction before stress. The body weight and food intake of the rats were measured every day. The content of leptin in serum andα-MSH in the ARC were detected by ELISA, and the expression of neuropeptides in the ARC was assayed by immunofluorescence, Western blot and q RT-PCR.RESULTS: The food intake and body weight of rats exposed to CIS were lower than those of control rats. The serum leptin, and expression levels of ObR, POMC and α-MSH in the ARC were significantly higher than those in the control rats. Treatment with the XYS decoction improved the appetite and the body weight, and down-regulated serum leptin and Ob-R, POMC and α-MSH in hypothalamus ARC.CONCLUSION: The leptin-Ob-R-POMC pathway might be the part of the mechanism underlying XYS's improvement of somatic symptoms such as reduction in food intake and body weight related to CIS.展开更多
基金Hebei Administration of Traditional Chinese Medicine Project:Study on the Neuroendocrine Mechanism of Chronic Prostatitis Rats Regulated by the Method of Clearing heat and Dampness,Activating Blood and Removing Stasis(No.2019087)Hebei Provincial Department of Education for Postgraduate Innovation Ability Training Project:the Mechanism of Improving Pulmonary Function of COPD Rats with Lung Qi Deficiency by Regulating Intestinal Bacteria with Peitu Shengjin Formula(No.CXZZBS2020151)Provincial Universities Basic Research Funds Special Project:Study on the Mechanism of Shenling Baizhu Powder Based on Lung Intestine Axis to Interfere with the Deficiency of Lung and Spleen in Experimental COPD(YJZ2019010)。
文摘OBJECTIVE:To explore the mechanism by which Qinghua decoction(清化饮)regulates neuroendocrine inflammation in chronic nonbacterial prostatitis(CNP)model rats and provide an experimental basis for clinical treatment.METHODS:The rats were randomly divided into six groups:normal control,model,Qianlie Tongyu capsule,low-dose Qinghua decoction,medium-dose Qinghua decoction,and high-dose Qinghua decoction group with six rats in each group.Rats in each group were sacrificed on the 29th day of treatment,and blood and prostate tissues were collected.Serum levels of tumor necrosis factor-alpha and interleukins 1-beta,6,8,and 10(TNF-αand IL-1β,-6,-8,and-10,respectively)were measured using enzyme-linked immunosorbent assay.The pathological changes in the rat prostate tissue in each group were observed under a light microscope.The expression levels of chromogranin A(CgA),nerve growth factor(NGF),and tyrosine kinase A(TrkA)were detected using reverse transcription quantitative polymerase chain reaction.Western blotting was used to detect protein expression of CgA,NGF,and TrkA.RESULTS:In the model group,the prostate capsule membrane and stroma were significantly dilated with more inflammatory cells infiltrating the stroma and perivessels.TNF-α,IL-1β,-6,and-8,CgA,NGF,and TrkA levels increased,whereas the content of IL-10 decreased,which was statistically significant compared to that in the normal control group(P<0.05).Prostate tissue cells in the high-dose group were neatly arranged with no obvious inflammatory cell infiltration.When compared with the model group,the high-dose Qinghua decoction group showed a significant improvement in these indices(P<0.05).CONCLUSION:Qinghua decoction led to inhibition of pathological changes in the prostate tissue of rats with CNP,regulation of inflammatory cytokine expression,and inhibition in the expression of CgA,NGF,and TrkA.This mechanism may be primarily related to regulation of the CgA/NGF/TrkA signaling pathway mediated by various inflammatory factors.
基金Supported by Hebei Province Natural Science Fund(Protection Mechanism Research of Bushenhuoxue on Hippocampal Nerve in Rats with Vascular Dementia Based on BDNF/Trk B Signaling Pathway,No.H2015423057)Hebei Provincial Department of Education Science and Technology Research Key Funding Project(Study on the Mechanism of Regulating the Autophagy and Apoptosis of Hippocampal Neurons in VD Rats by Bushenhuoxue Prescription,No.ZD2018009)Research Capacity Enhancement Project of Hebei University of Chinese Medicine(Improvement of Hippocampal Synaptic Remodeling in Rats with Vascular Dementia by Regulating BDNF/Trk B Signaling Pathway Based on the"renal essence"theory,No.2019-11).
文摘OBJECTIVE:To explore the protective mechanisms of the Traditional Chinese Medicine Bushenhuoxue(BSHX)in a rat model of vascular dementia(VD).METHODS:A rat model of VD was developed using bilateral common carotid artery occlusion(BCCAO).Rats were administered BSHX(10.14 or 5.07 g/kg),nimodipine(11.06 mg/kg;positive control),or saline(control)by gavage daily for 30 d post-surgery.Learning and memory abilities were assessed using the Morris water maze.Morphological changes in the hippocampus were observed using light microscopy(hematoxylin and eosin staining)and transmission electron microscopy(TEM).The m RNA and protein expression levels of brain-derived neurotrophic factor(BDNF),tyrosine receptor kinase B(Trk B),phosphatidyl inositol 3-kinase(PI3 K),serine/threonine kinase(AKT),and c AMP response element binding protein(CREB)were measured by real-time polymerase chain reaction(RT-PCR)and Western blot,respectively.RESULTS:Compared with the sham group,rats with BCCAO exhibited impaired learning and memory abilities(Morris water maze)and showed abnormalities in neuronal morphology(light microscopy)and ultrastructure(TEM)in the hippocampus.They also had decreased m RNA and protein expressions of BDNF,Trk B,PI3 K,AKT,and CREB in hippocampal tissue(all P<0.05).In rats with BCCAO,administration of BSHX attenuated deficits in learning and memory,improved the morphology and ultrastructure of hippocampal neurons,and enhanced m RNA and protein expression levels of BDNF,Trk B,PI3 K,AKT,and CREB(all P<0.05).CONCLUSION:BSHX may protect hippocampal neurons and improve learning and memory abilities,at least in part via the activation of BDNF/Trk B/PI3 K/AKT/CREB signaling.
基金Supported by the Government Funded Clinical Medicine Eexcellent Talent Training and Basic Research Project PlanNatural Science Foundation of Hebei(No.H2019423092)+2 种基金Higher Education Science and Technology Research Project of Hebei(No.ZD2016056)Postgraduate Innovation Ability Development Project of Hebei Education Department(No.CXZZBS2019159)Basic Research Business Expenses of Provincial Universities of Hebei University of Chinese Medicine Project of Excellent Student Research Capacity Improvement(No.YXZ2019001)。
文摘OBJECTIVE: To investigate the effect of Danggui Buxue Tang(DBT), a decoction from Traditional Chinese Medicine, on bleomycin-induced pulmonary fibrosis in rats, and to propose the possible underlying mechanism.METHODS: Forty male Sprague-Dawley rats were randomly divided into sham group, model group,prednisone group and DBT group. Pulmonary fibrosis rat model was established by intratracheal injection with bleomycin. Body weight and lung index were monitored. Histopathologic examination and collagen deposition were determined using Hematoxylin and eosin(HE) and Masson's trichrome staining. Immunohistochemistry staining was applied to observe the expression of alpha-smooth muscle actin(α-SMA). m RNA expression of α-SMA,collagen Ⅰ and collagen Ⅲ were measured by realtime fluorescence quantitative PCR(RT-q PCR). Inflammatory cytokines, including tumor necrosis factor alpha(TNF-α), interleukin-6(IL-6) and IL-1β in serum were detected by Enzyme-linked immunosorbent assay. Alkali hydrolysis method was conducted to investigate the content of hydroxyproline(HYP). Transforming growth factor-β1(TGF-β1),Smad3 and plasminogen activator inhibitor-1(PAI-1) protein level were examined by Western blot assay.RESULTS: DBT significantly reduced the severity of bleomycin-induced pulmonary fibrosis and inflammation as indicated by minimizing the lost of weight, and by lowering the levels of lung index, inflammation score, Ashcroft score, collagen volume fraction(%), HYP, α-SMA, collagen Ⅰ, collagen Ⅲ,TNF-α, IL-6, IL-1β, TGF-β1, Smad3 and PAI-1, consistent with the effect of prednisone.CONCLUSION: Our findings suggest that DBT is able to ameliorate the pulmonary fibrosis, the possible mechanism may involve inhibition of pulmonary inflammation and collagen deposition, possibly via suppressing TGF-β1/Smad3/PAI-1 signaling pathway.
基金the National Natural Science Foundation of China(No.81673881 and 81202644)the Natural Science Foundation of Hebei Province(No.H2016423049)
文摘OBJECTIVE: To evaluate the effects of the Xiaoyaosan(XYS) decoction on the food intake and body weight of rats with chronic immobilization stress(CIS), as well as the concentration of serum leptin and the expression of feeding-related neuropeptides [leptin receptor(Ob-R), proopiomelanocortin(POMC), and α-melanocyte-stimulating hormone(α-MSH)] in the hypothalamic arcuate nucleus(ARC).METHODS: We subjected rats to CIS for 3 h a day.The rats were randomly divided into the following groups: control group, 7-day stress group, 21-day stress group and XYS-treated group. The rats in the two stress groups were exposed to CIS for 7 or 21 d.The rats in the XYS-treated group were also exposed to CIS for 21 d and were intragastrically administered the XYS decoction before stress. The body weight and food intake of the rats were measured every day. The content of leptin in serum andα-MSH in the ARC were detected by ELISA, and the expression of neuropeptides in the ARC was assayed by immunofluorescence, Western blot and q RT-PCR.RESULTS: The food intake and body weight of rats exposed to CIS were lower than those of control rats. The serum leptin, and expression levels of ObR, POMC and α-MSH in the ARC were significantly higher than those in the control rats. Treatment with the XYS decoction improved the appetite and the body weight, and down-regulated serum leptin and Ob-R, POMC and α-MSH in hypothalamus ARC.CONCLUSION: The leptin-Ob-R-POMC pathway might be the part of the mechanism underlying XYS's improvement of somatic symptoms such as reduction in food intake and body weight related to CIS.
