Recently reports showed that the pathobiology of acne vulgaris was arising from the exploration of sebaceous gland biology, hormonal factors, hyper-keratinization, and the role of bacteria, sebum, nutrition, cytokines...Recently reports showed that the pathobiology of acne vulgaris was arising from the exploration of sebaceous gland biology, hormonal factors, hyper-keratinization, and the role of bacteria, sebum, nutrition, cytokines and toll-like receptors (TLRs). Propionibacterium acnes (P.acnes) has a strong proinflammatory activity and targets molecules involved in the innate cutaneous immunity on keratinocytes by acting on TLR-2, leads to the development of comedones. GMP, a multi-herb extraction, targeted most of the major pathogenic features of acne with desired physicochemical traits. It strongly suppressed P.acnes growth, and reduced inflammation by suppressing the TLR-2/NF- kB pathway in SZ-95 sebocytes and HaCaT keratinocytes. GMP exhibited a marginal effect on cell viability and may have modulated hyper-keratinization of the epidermis. These results demonstrate the clinical feasibility of applying GMP for the treatment of acne.展开更多
目的观察不同浓度的石榴皮多酚软膏对兔耳粉刺模型组织病理形态学的影响,确定痤疮治疗的最佳石榴皮多酚软膏浓度。方法采用家兔左、右外耳道外缘处约2.0 cm×2.0 cm范围涂抹2%煤焦油溶液约0.5 m L,1次/d,连续2周以制成动物粉刺模型...目的观察不同浓度的石榴皮多酚软膏对兔耳粉刺模型组织病理形态学的影响,确定痤疮治疗的最佳石榴皮多酚软膏浓度。方法采用家兔左、右外耳道外缘处约2.0 cm×2.0 cm范围涂抹2%煤焦油溶液约0.5 m L,1次/d,连续2周以制成动物粉刺模型。将不同浓度(18%、9%、3%)的石榴皮多酚制备成软膏,均匀涂抹于兔耳粉刺模型,2次/d,连续4周。取材后在光镜下观察兔耳粉刺模型组织病理形态的变化。结果石榴皮多酚中剂量组与阳性药物(异维A酸)组对粉刺模型病理组织形态学兔耳炎症程度、角化程度、毛囊扩张程度的影响最为显著;模型组与空白组相比,兔耳炎症、角化、毛囊扩张显著(P<0.01);与模型组相比,石榴皮多酚中剂量组与阳性药物组均能显著降低兔耳炎症程度、角化程度、毛囊扩张程度(P<0.01);石榴皮多酚高剂量组与石榴皮多酚低剂量组也能降低兔耳兔耳炎症程度、角化程度、毛囊扩张程度(P<0.05),但不如石榴皮多酚中剂量组与阳性药物组(P<0.05)。结论石榴皮多酚中剂量组及阳性药物组对兔耳粉刺模型的抗角化及抗炎作用最显著。展开更多
文摘Recently reports showed that the pathobiology of acne vulgaris was arising from the exploration of sebaceous gland biology, hormonal factors, hyper-keratinization, and the role of bacteria, sebum, nutrition, cytokines and toll-like receptors (TLRs). Propionibacterium acnes (P.acnes) has a strong proinflammatory activity and targets molecules involved in the innate cutaneous immunity on keratinocytes by acting on TLR-2, leads to the development of comedones. GMP, a multi-herb extraction, targeted most of the major pathogenic features of acne with desired physicochemical traits. It strongly suppressed P.acnes growth, and reduced inflammation by suppressing the TLR-2/NF- kB pathway in SZ-95 sebocytes and HaCaT keratinocytes. GMP exhibited a marginal effect on cell viability and may have modulated hyper-keratinization of the epidermis. These results demonstrate the clinical feasibility of applying GMP for the treatment of acne.
文摘目的观察不同浓度的石榴皮多酚软膏对兔耳粉刺模型组织病理形态学的影响,确定痤疮治疗的最佳石榴皮多酚软膏浓度。方法采用家兔左、右外耳道外缘处约2.0 cm×2.0 cm范围涂抹2%煤焦油溶液约0.5 m L,1次/d,连续2周以制成动物粉刺模型。将不同浓度(18%、9%、3%)的石榴皮多酚制备成软膏,均匀涂抹于兔耳粉刺模型,2次/d,连续4周。取材后在光镜下观察兔耳粉刺模型组织病理形态的变化。结果石榴皮多酚中剂量组与阳性药物(异维A酸)组对粉刺模型病理组织形态学兔耳炎症程度、角化程度、毛囊扩张程度的影响最为显著;模型组与空白组相比,兔耳炎症、角化、毛囊扩张显著(P<0.01);与模型组相比,石榴皮多酚中剂量组与阳性药物组均能显著降低兔耳炎症程度、角化程度、毛囊扩张程度(P<0.01);石榴皮多酚高剂量组与石榴皮多酚低剂量组也能降低兔耳兔耳炎症程度、角化程度、毛囊扩张程度(P<0.05),但不如石榴皮多酚中剂量组与阳性药物组(P<0.05)。结论石榴皮多酚中剂量组及阳性药物组对兔耳粉刺模型的抗角化及抗炎作用最显著。