Ge Gen Decoction(GGD),a Traditional Chinese Medicine prescription,is mainly used to treat infectious respiratory diseases and can relieve the symptoms of influenza A virus(IAV)infection.However,the underlying mechanis...Ge Gen Decoction(GGD),a Traditional Chinese Medicine prescription,is mainly used to treat infectious respiratory diseases and can relieve the symptoms of influenza A virus(IAV)infection.However,the underlying mechanism of GGD against IAV infection remains unclear.In this study,we found that GGD had moderate anti-IAV activity in vitro.GGD was more effective when given before the viral infection and targeted the viral attachment and replication stages rather than the internalization sta ge.In vivo,GGD treatment reduced the virus titers of lung tissue significantly and improved the survival rate,lung index,and pulmonary hist opathological changes in H1N1-infected mice.We observed the changes in several key immuno-related indexes in GGD administrated H1N1-infected mice with anti-IAV drug oseltamivir phosphate as the control.GGD treatment decreased the expression of TNF-αand improved Th1/Th2 immune balance to reduce the excessive immune response in H1N1-infected mice.Besides,the expression of the toll-like receptor 7 signaling pathway in H1N1-infected mice decreased after GGD treatment.Our results showed that GGD has anti-IAV activity and can modulate the immune system to relieve lung inflammation.展开更多
The uterine tetanic contraction and uterine artery blood flow reduction are possible reasons for primary dysmenorrhea(PD). In the present study, we aimed to evaluate the uterine relaxant effect and the influence on ut...The uterine tetanic contraction and uterine artery blood flow reduction are possible reasons for primary dysmenorrhea(PD). In the present study, we aimed to evaluate the uterine relaxant effect and the influence on uterine artery blood velocity of Ge-Gen Decoction(GGD), a well-known Chinese herbal formula. In female ICR mice, uterine contraction was induced by oxytocin exposure following estradiol benzoate pretreatment, and the uterine artery blood velocity was detected by Doppler ultrasound. Histopathological examination of the uterine tissue samples were performed by H&E staining. Ex vivo studies demonstrated that oxytocin, posterior pituitary, or acetylcholine induced contractions in isolated mouse uterus. GGD inhibited both spontaneous and stimulated contractions. In vivo study demonstrated that GGD significantly reduced oxytocin-induced writhing responses with a maximal inhibition of 87%. Further study demonstrated that GGD normalized oxytocin-induced abnormalities of prostaglandins F_2 alpha(PGF_(2α)) and Ca^(2+) in mice. In addition, injection of oxytocin induced a decrease in uterine artery blood flow velocity. Pretreatment with GGD reversed the oxytocin response on blood flow velocity. Histopathological examination showed pretreatment with GGD alleviated inflammation and edema in the uterus when compared with the model group. Both ex vivo and in vivo results indicated that GGD possessed a significant spasmolytic effect on uterine tetanic contraction as well as improvement on uterine artery blood velocity which may involve PGF_(2α) and Ca^(2+) signaling, suggesting that GGD may have a clinic potential in PD therapy.展开更多
Gui-Zhi-Jia-Ge-Gen-Tang(GZJGGT) is a traditional Chinese medicine(TCM) prescription commonly used to treat cervical spondylopathy, scapulohumeral periarthritis, etc. Though it is widely applied in clinical practice, t...Gui-Zhi-Jia-Ge-Gen-Tang(GZJGGT) is a traditional Chinese medicine(TCM) prescription commonly used to treat cervical spondylopathy, scapulohumeral periarthritis, etc. Though it is widely applied in clinical practice, the effective constituents of GZJGGT remain unclear. This was the first report on the identification of the chemical constituents from GZJGGT in vitro and in vivo using LC-IT-MS combined with LC-Q-TOF-MS. A total of 141 constituents were detected in GZJGGT, and 77 were identified. These compounds mainly included flavonoid glycosides, triterpene saponins, monoterpene glycosides, puerosides, and organic acids. Among them, 12 compounds were unequivocally identified in comparison with reference substances. Additionally, a diagnostic base peak ion filtering strategy for rapid classification of flavonoid O-glycosides and C-glycosides was proposed. After gastrointestinal administration of GZJGGT to rats, 45 prototypes and 48 metabolites in rat plasma were speculated. In addition, the metabolic profile of GZJGGT was portrayed to understand interrelationship between metabolites.展开更多
基金supported by the Key R&D Project in Shandong Province(the Second Development of the Chinese Patent Medicine Ge Gen Decoction Granule,No.2016CYJS08A01-8)
文摘Ge Gen Decoction(GGD),a Traditional Chinese Medicine prescription,is mainly used to treat infectious respiratory diseases and can relieve the symptoms of influenza A virus(IAV)infection.However,the underlying mechanism of GGD against IAV infection remains unclear.In this study,we found that GGD had moderate anti-IAV activity in vitro.GGD was more effective when given before the viral infection and targeted the viral attachment and replication stages rather than the internalization sta ge.In vivo,GGD treatment reduced the virus titers of lung tissue significantly and improved the survival rate,lung index,and pulmonary hist opathological changes in H1N1-infected mice.We observed the changes in several key immuno-related indexes in GGD administrated H1N1-infected mice with anti-IAV drug oseltamivir phosphate as the control.GGD treatment decreased the expression of TNF-αand improved Th1/Th2 immune balance to reduce the excessive immune response in H1N1-infected mice.Besides,the expression of the toll-like receptor 7 signaling pathway in H1N1-infected mice decreased after GGD treatment.Our results showed that GGD has anti-IAV activity and can modulate the immune system to relieve lung inflammation.
基金supported by a grant from Ministry of Education,the New Teachers’Fund for Ph.D Stations(Program No.20110096120011)2011’Program for Excellent Scientific and Technological Innovation Team of Jiangsu Higher Education
文摘The uterine tetanic contraction and uterine artery blood flow reduction are possible reasons for primary dysmenorrhea(PD). In the present study, we aimed to evaluate the uterine relaxant effect and the influence on uterine artery blood velocity of Ge-Gen Decoction(GGD), a well-known Chinese herbal formula. In female ICR mice, uterine contraction was induced by oxytocin exposure following estradiol benzoate pretreatment, and the uterine artery blood velocity was detected by Doppler ultrasound. Histopathological examination of the uterine tissue samples were performed by H&E staining. Ex vivo studies demonstrated that oxytocin, posterior pituitary, or acetylcholine induced contractions in isolated mouse uterus. GGD inhibited both spontaneous and stimulated contractions. In vivo study demonstrated that GGD significantly reduced oxytocin-induced writhing responses with a maximal inhibition of 87%. Further study demonstrated that GGD normalized oxytocin-induced abnormalities of prostaglandins F_2 alpha(PGF_(2α)) and Ca^(2+) in mice. In addition, injection of oxytocin induced a decrease in uterine artery blood flow velocity. Pretreatment with GGD reversed the oxytocin response on blood flow velocity. Histopathological examination showed pretreatment with GGD alleviated inflammation and edema in the uterus when compared with the model group. Both ex vivo and in vivo results indicated that GGD possessed a significant spasmolytic effect on uterine tetanic contraction as well as improvement on uterine artery blood velocity which may involve PGF_(2α) and Ca^(2+) signaling, suggesting that GGD may have a clinic potential in PD therapy.
基金supported by Zhejiang Provincial Natural Science Foundation of China(No.LY17H280002)
文摘Gui-Zhi-Jia-Ge-Gen-Tang(GZJGGT) is a traditional Chinese medicine(TCM) prescription commonly used to treat cervical spondylopathy, scapulohumeral periarthritis, etc. Though it is widely applied in clinical practice, the effective constituents of GZJGGT remain unclear. This was the first report on the identification of the chemical constituents from GZJGGT in vitro and in vivo using LC-IT-MS combined with LC-Q-TOF-MS. A total of 141 constituents were detected in GZJGGT, and 77 were identified. These compounds mainly included flavonoid glycosides, triterpene saponins, monoterpene glycosides, puerosides, and organic acids. Among them, 12 compounds were unequivocally identified in comparison with reference substances. Additionally, a diagnostic base peak ion filtering strategy for rapid classification of flavonoid O-glycosides and C-glycosides was proposed. After gastrointestinal administration of GZJGGT to rats, 45 prototypes and 48 metabolites in rat plasma were speculated. In addition, the metabolic profile of GZJGGT was portrayed to understand interrelationship between metabolites.
