Lipids in stratum corneum are largely responsible for skin barrier function.There have been numerous studies on skin barrier repairing and moisturizing effects of products containing occlusives,emollients and humectan...Lipids in stratum corneum are largely responsible for skin barrier function.There have been numerous studies on skin barrier repairing and moisturizing effects of products containing occlusives,emollients and humectants.However,currently there are few studies systematically evaluating effect of moisturizers containing endogenous lipids on skin barrier properties.The objective of this study was to study the effect of products containing endogenous lipids on various barrier-related indicators.A total 89 subjects with dry skin were enrolled.To evaluate the effect of the test products on skin barrier function and hydration after 28 days of use on the face,this study combined clinical assessments of skin condition(skin redness,global appearance of dry line,skin roughness and radiance),instrumental assessments(transepidermal water loss,skin hydration and scaliness)and photo tracking(VISIA-CR,VC20 and 3D in-vivo Reflectance Confocal Microscope).Adverse reactions were also assessed.All test products showed significant improvement in all the attributes assessed by both clinical assessments and instrumental assessments after 28 days of treatment.In addition,the products containing skinidentical ceramides and niacinamide show improvement on TEWL and skin hydration.Two products containing exogenous lipids can improve skin hydration and barrier function which have demonstrated efficacy in improving dry skin condition.展开更多
Tripterygium hypoglaucum(Levl.)Hutch.(THH),which belongs to Tripterygium genus of Celastraceae family,is widely used as the common Chinese herbal medicine.It has been reported that the chemical constituents of T.hypog...Tripterygium hypoglaucum(Levl.)Hutch.(THH),which belongs to Tripterygium genus of Celastraceae family,is widely used as the common Chinese herbal medicine.It has been reported that the chemical constituents of T.hypoglaucum include monoterpenoids,sesquiterpenoids,diterpenoids,triterpenoids,sesquiterpene alkaloids,flavonoids,anthraquinone derivatives,et al.These compounds showed a wide range of bioactivities,such as anti-inflammatory,anti-cancer,immunosuppressive,anti-HIV,anti-fertility and insecticidal activities.In this paper,we summarized the chemical constituents and pharmacological activities of T.hypoglaucum to provide a reference for its further research and developement.展开更多
An approach of training working staff of power system operation mode based on state evaluation is proposed. In terms of knowledge features of power system operation mode, we studied a training method based on evaluati...An approach of training working staff of power system operation mode based on state evaluation is proposed. In terms of knowledge features of power system operation mode, we studied a training method based on evaluation of learning state. This training method makes individual learning for different individual condition to give them ability to grasp learning points quickly, evaluate real-time learning effect, update learning style in time and summarize problems after one learning stage, so that learners can master professional knowledge in constant summaries and feedbacks. Obvious effects can be obtained on discontinuous learning time that trainees can master basic theories associated with their working and operations adapted to practical work quickly.展开更多
文摘Lipids in stratum corneum are largely responsible for skin barrier function.There have been numerous studies on skin barrier repairing and moisturizing effects of products containing occlusives,emollients and humectants.However,currently there are few studies systematically evaluating effect of moisturizers containing endogenous lipids on skin barrier properties.The objective of this study was to study the effect of products containing endogenous lipids on various barrier-related indicators.A total 89 subjects with dry skin were enrolled.To evaluate the effect of the test products on skin barrier function and hydration after 28 days of use on the face,this study combined clinical assessments of skin condition(skin redness,global appearance of dry line,skin roughness and radiance),instrumental assessments(transepidermal water loss,skin hydration and scaliness)and photo tracking(VISIA-CR,VC20 and 3D in-vivo Reflectance Confocal Microscope).Adverse reactions were also assessed.All test products showed significant improvement in all the attributes assessed by both clinical assessments and instrumental assessments after 28 days of treatment.In addition,the products containing skinidentical ceramides and niacinamide show improvement on TEWL and skin hydration.Two products containing exogenous lipids can improve skin hydration and barrier function which have demonstrated efficacy in improving dry skin condition.
文摘Tripterygium hypoglaucum(Levl.)Hutch.(THH),which belongs to Tripterygium genus of Celastraceae family,is widely used as the common Chinese herbal medicine.It has been reported that the chemical constituents of T.hypoglaucum include monoterpenoids,sesquiterpenoids,diterpenoids,triterpenoids,sesquiterpene alkaloids,flavonoids,anthraquinone derivatives,et al.These compounds showed a wide range of bioactivities,such as anti-inflammatory,anti-cancer,immunosuppressive,anti-HIV,anti-fertility and insecticidal activities.In this paper,we summarized the chemical constituents and pharmacological activities of T.hypoglaucum to provide a reference for its further research and developement.
文摘An approach of training working staff of power system operation mode based on state evaluation is proposed. In terms of knowledge features of power system operation mode, we studied a training method based on evaluation of learning state. This training method makes individual learning for different individual condition to give them ability to grasp learning points quickly, evaluate real-time learning effect, update learning style in time and summarize problems after one learning stage, so that learners can master professional knowledge in constant summaries and feedbacks. Obvious effects can be obtained on discontinuous learning time that trainees can master basic theories associated with their working and operations adapted to practical work quickly.
