摘要
Objective: To investigate the hair growth-promoting effect of Miscanthus sinensis var.purpurascens(MSP) flower extracton on in vitro and in vivo models.Methods: MSP flower extract was extracted in 99.9% methanol and applied to examine the proliferation of human dermal papilla cells(h DPCs) in vitro at the dose of 3.92–62.50 μg/m L and hair growth of C57 BL/6 mice in vivo at the dose of 1000 μg/m L.The expression of transforming growth factor β1(TGF-β1),hepatocyte growth factor(HGF),β-catenin,substance P was measured by relative quantitative realtime polymerase chain reaction.Histopathological and immunohistochemical analysis were performed.Results: MSP(7.81 μg/m L) down-regulated TGF-β1 and up-regulated HGF and β-catenin in h DPCs(P<0.01).MSP(1000 μg/m L)-treated mice showed the earlier transition of hair follicles from the telogen to the anagen phase.The number of mast cells was lower in the MSP-treated mice than in other groups(P<0.05 vs.NCS group).Substance P and TGF-β1 were expressed in hair follicles and skin of the MSP group lower than that in negative control.Stem cell factor in hair follicles was up-regulated in the MSP-treated mice(P<0.01).Conclusion: The MSP flower extract may have hair growth-promotion activities.
Objective: To investigate the hair growth-promoting effect of Miscanthus sinensis var.purpurascens(MSP) flower extracton on in vitro and in vivo models.Methods: MSP flower extract was extracted in 99.9% methanol and applied to examine the proliferation of human dermal papilla cells(h DPCs) in vitro at the dose of 3.92–62.50 μg/m L and hair growth of C57 BL/6 mice in vivo at the dose of 1000 μg/m L.The expression of transforming growth factor β1(TGF-β1),hepatocyte growth factor(HGF),β-catenin,substance P was measured by relative quantitative realtime polymerase chain reaction.Histopathological and immunohistochemical analysis were performed.Results: MSP(7.81 μg/m L) down-regulated TGF-β1 and up-regulated HGF and β-catenin in h DPCs(P<0.01).MSP(1000 μg/m L)-treated mice showed the earlier transition of hair follicles from the telogen to the anagen phase.The number of mast cells was lower in the MSP-treated mice than in other groups(P<0.05 vs.NCS group).Substance P and TGF-β1 were expressed in hair follicles and skin of the MSP group lower than that in negative control.Stem cell factor in hair follicles was up-regulated in the MSP-treated mice(P<0.01).Conclusion: The MSP flower extract may have hair growth-promotion activities.
引文
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