Heat stress(HS)reaction can lead to serious physiological dysfunction associated with cardiovascular and various organ diseases.Ginsenoside Rg3(G-Rg3)is a representative component of ginseng rare saponin and can prote...Heat stress(HS)reaction can lead to serious physiological dysfunction associated with cardiovascular and various organ diseases.Ginsenoside Rg3(G-Rg3)is a representative component of ginseng rare saponin and can protect against multiple organs,also used as functional food to adjust the balance of the human body,but the therapeutic effect and molecular mechanism of G-Rg3 on male diseases under HS are underexplored.The aim of the present study,G-Rg3 was prepared through the efficient conversion of ginsenoside Rd and investigate the contribution of G-Rg3 to testicular injury induced exposure to HS.All mice were divided into four groups as follows:normal group,HS group,and HS+G-Rg3(5 and 10 mg/kg)groups.G-Rg3 was administered orally for 14 days,then exposed to a single scrotal heat treatment(43°C,18min)on the 7th day.After HS treatment,the morphology of testis and epididymis changes,and caused a significant loss of multinucleated giant cells,desquamation of germ cells in destructive seminiferous tubules,and degenerative Leydig cells,further destroying the production of sperm.After administration G-Rg3(5 and 10 mg/kg/day)for 2 weeks,the spermatogenic-related indexes of testosterone levels and superoxide dismutase(SOD)activity,glutathione(GSH)content significantly(p<0.01)increase compared with the HS group.Moreover,G-Rg3 treatment effectively ameliorated the production of malondialdehyde(MDA)(p<0.05 or p<0.01).Importantly,G-Rg3 exhibited the protective potential against HS-induced injury not only suppressing the protein levels of heme oxygenase-1(HO-1),hypoxia-inducible factor-1α(HIF-1α),and heat shock protein 70(HSP70)but also modulating the Bcl-2 family(p<0.01 or p<0.001)and activation of mitogen-activated protein kinase(MAPK)signaling pathways(p<0.01).For most of the parameters tested,the HS+G-Rg3(10 mg/kg)group exhibited potent effects compared with those exhibited by the low dose(5 mg/kg)group.In conclusion,the present study demonstrated that G-Rg3 exerted protective effects against HS-induced testicular dysfunction via inhibiting the MAPK-mediated oxidative stress and apoptosis in mice.展开更多
Ginsenoside Rb3(G-Rb3)is one of the primary active compounds isolated from Panax ginseng Meyer,which belongs to protopanaxadiol ginsenosides(PPD).Based on the structure-activity relationship(SAR)of ginsenosides,the pe...Ginsenoside Rb3(G-Rb3)is one of the primary active compounds isolated from Panax ginseng Meyer,which belongs to protopanaxadiol ginsenosides(PPD).Based on the structure-activity relationship(SAR)of ginsenosides,the pentose structure of G-Rb3 limited itself to possess more pharmacological activity to a certain extent.However,pharmacokinetics show that G-Rb3 is processed through deglycosylation in the intestinal tract and converted into more active rare saponins,such as Compound K,F2,etc.A series of studies focused on neuroprotection and the cardiovascular system demonstrating its therapeutic potentials,which was achieved by diminishing oxidative stress and apoptosis.Therefore,more systematic and in-depth studies are needed to complete the pharmaceutical value and to promote its clinical applications.This article highlights the multiple pharmacological effects and mechanisms of G-Rb3 and prospects for its development.展开更多
Diabetes-associated liver injury becomes a dominant hepatopathy,leading to hepatic failure worldwide.The current study was designed to evaluate the ameliorative effects of ginsenoside Rh1(G-Rh1)on liver injury induced...Diabetes-associated liver injury becomes a dominant hepatopathy,leading to hepatic failure worldwide.The current study was designed to evaluate the ameliorative effects of ginsenoside Rh1(G-Rh1)on liver injury induced by T2DM.A T2DM model was established using C57BL/6 mice through feeding with HFD followed by injection with streptozotocin at 100 mg·kg^(−1).Then the mice were continuously administered with G-Rh1(5 and 10 mg·kg^(−1)),to explore the protective effects of G-Rh1 against liver injury.Results showed that G-Rh1 exerted significant effects on maintaining the levels of FBG and insulin,and ameliorated the increased levels of TG,TC and LDL-C induced by T2DM.Moreover,apoptosis in liver tissue was relieved by G-Rh1,according to histological analysis.Particularly,in diabetic mice,it was observed that not only the increased secretion of G6Pase and PEPCK in the gluconeogenesis pathway,but also inflammatory factors including NF-κB and NLRP3 were suppressed by G-Rh1 treatment.Furthermore,the underlying mechanisms by which G-Rh1 exhibited ameliorative effects was associated with its capacity to inhibit the activation of the Akt/FoxO1 signaling pathway induced by T2DM.Taken together,our preliminary study demonstrated the potential mechnism of G-Rh1 in protecting the liver against T2DM-induced damage.展开更多
基金the grants of the Jilin Science&Technology Development Plan(Nos.20170101011JC,20200301037RQ and 20190103092JH)the Open Fund of Key Laboratory of Biotechnology and Bioresources Utilization(KF202004).
文摘Heat stress(HS)reaction can lead to serious physiological dysfunction associated with cardiovascular and various organ diseases.Ginsenoside Rg3(G-Rg3)is a representative component of ginseng rare saponin and can protect against multiple organs,also used as functional food to adjust the balance of the human body,but the therapeutic effect and molecular mechanism of G-Rg3 on male diseases under HS are underexplored.The aim of the present study,G-Rg3 was prepared through the efficient conversion of ginsenoside Rd and investigate the contribution of G-Rg3 to testicular injury induced exposure to HS.All mice were divided into four groups as follows:normal group,HS group,and HS+G-Rg3(5 and 10 mg/kg)groups.G-Rg3 was administered orally for 14 days,then exposed to a single scrotal heat treatment(43°C,18min)on the 7th day.After HS treatment,the morphology of testis and epididymis changes,and caused a significant loss of multinucleated giant cells,desquamation of germ cells in destructive seminiferous tubules,and degenerative Leydig cells,further destroying the production of sperm.After administration G-Rg3(5 and 10 mg/kg/day)for 2 weeks,the spermatogenic-related indexes of testosterone levels and superoxide dismutase(SOD)activity,glutathione(GSH)content significantly(p<0.01)increase compared with the HS group.Moreover,G-Rg3 treatment effectively ameliorated the production of malondialdehyde(MDA)(p<0.05 or p<0.01).Importantly,G-Rg3 exhibited the protective potential against HS-induced injury not only suppressing the protein levels of heme oxygenase-1(HO-1),hypoxia-inducible factor-1α(HIF-1α),and heat shock protein 70(HSP70)but also modulating the Bcl-2 family(p<0.01 or p<0.001)and activation of mitogen-activated protein kinase(MAPK)signaling pathways(p<0.01).For most of the parameters tested,the HS+G-Rg3(10 mg/kg)group exhibited potent effects compared with those exhibited by the low dose(5 mg/kg)group.In conclusion,the present study demonstrated that G-Rg3 exerted protective effects against HS-induced testicular dysfunction via inhibiting the MAPK-mediated oxidative stress and apoptosis in mice.
基金This work was funded by the grant of Jilin Science&Technology Development Plan(No.20200301037RQ).
文摘Ginsenoside Rb3(G-Rb3)is one of the primary active compounds isolated from Panax ginseng Meyer,which belongs to protopanaxadiol ginsenosides(PPD).Based on the structure-activity relationship(SAR)of ginsenosides,the pentose structure of G-Rb3 limited itself to possess more pharmacological activity to a certain extent.However,pharmacokinetics show that G-Rb3 is processed through deglycosylation in the intestinal tract and converted into more active rare saponins,such as Compound K,F2,etc.A series of studies focused on neuroprotection and the cardiovascular system demonstrating its therapeutic potentials,which was achieved by diminishing oxidative stress and apoptosis.Therefore,more systematic and in-depth studies are needed to complete the pharmaceutical value and to promote its clinical applications.This article highlights the multiple pharmacological effects and mechanisms of G-Rb3 and prospects for its development.
基金supported by Jilin Science&Technology Development Plan(No.20200301037RQ).
文摘Diabetes-associated liver injury becomes a dominant hepatopathy,leading to hepatic failure worldwide.The current study was designed to evaluate the ameliorative effects of ginsenoside Rh1(G-Rh1)on liver injury induced by T2DM.A T2DM model was established using C57BL/6 mice through feeding with HFD followed by injection with streptozotocin at 100 mg·kg^(−1).Then the mice were continuously administered with G-Rh1(5 and 10 mg·kg^(−1)),to explore the protective effects of G-Rh1 against liver injury.Results showed that G-Rh1 exerted significant effects on maintaining the levels of FBG and insulin,and ameliorated the increased levels of TG,TC and LDL-C induced by T2DM.Moreover,apoptosis in liver tissue was relieved by G-Rh1,according to histological analysis.Particularly,in diabetic mice,it was observed that not only the increased secretion of G6Pase and PEPCK in the gluconeogenesis pathway,but also inflammatory factors including NF-κB and NLRP3 were suppressed by G-Rh1 treatment.Furthermore,the underlying mechanisms by which G-Rh1 exhibited ameliorative effects was associated with its capacity to inhibit the activation of the Akt/FoxO1 signaling pathway induced by T2DM.Taken together,our preliminary study demonstrated the potential mechnism of G-Rh1 in protecting the liver against T2DM-induced damage.
