Aim: To evaluate the possible advantages of dermo-cosmetic products formulated with thermal spring water instead of deionized water. We studied the effect of a dermo-cosmetic product on skin barrier recovery after inj...Aim: To evaluate the possible advantages of dermo-cosmetic products formulated with thermal spring water instead of deionized water. We studied the effect of a dermo-cosmetic product on skin barrier recovery after injury. In one test the product was formulated with de-ionized water and again using the identical product formulated with thermal spring water. Study Design/Methods: Stratum corneum of human skin explants was removed (and not removed for the control) with an ether/acetone mixture. A cosmetic product, either formulated with de-ionized or thermal spring water, was then topically applied on the explants. After a 5-day incubation period, epidermal expression of aquaporine-3, filaggrin, claudin-4 and claudin-6 was studied by using immunohistochemical techniques. Results: The formulation containing de-ionized water seemed to act on the epidermal expression of filaggrin and claudin-4. When thermal spring water was used to make the formulation, we noted that this expression was greatly enhanced. The formulation containing thermal spring water also acted to increase aquaporin-3 and claudin-6 expression. Conclusion: The use of thermal spring water in cosmetic formulations would appear to contribute to the cosmetic product’s efficacy. It was also interesting to note that this study revealed claudin-6 expression in human skin for the first time.展开更多
Ulcerative colitis(UC)is a chronic inflammatory bowel disease characterized by persistent inflammation of the colon and disrupted intestinal function.Ramulus mori(Sangzhi)alkaloids(SZ-A),derived from twigs of mulberry...Ulcerative colitis(UC)is a chronic inflammatory bowel disease characterized by persistent inflammation of the colon and disrupted intestinal function.Ramulus mori(Sangzhi)alkaloids(SZ-A),derived from twigs of mulberry,were approved by the National Medical Products Administration in 2020 for treating type 2 diabetes mellitus.Accumulated evidence has confirmed that SZ-A also alleviates non-alcoholic fatty liver disease and ameliorates inflammation,indicating its potential to address inflammation in UC.However,the treatment of UC faces challenges due to low drug delivery efficiency and short retention time.To overcome these challenges,an injectable and adherent in-situ thermo-sensitive hydrogel containing SZ-A was developed for rectal drug delivery,utilizing the thermo-sensitive polymers Poloxamer 407and 188.The thermo-sensitive hydrogel system was designed with a moderate gelation temperature of 32±0.5℃,a short gelation time of 64 s,a p H range of 7-10,high moisturizing capability exceeding 90%,and moderate mechanical strength of 4-5 s.In a rat model with UC,the in situ thermo-sensitive hydrogel significantly extended the retention time at the colonic site and enabled sustained release after rectal administration.Symptoms of UC were markedly reduced following rectal administration of SZ-A thermosensitive hydrogel.Furthermore,the release of inflammatory factors,such as interleukin-1β(IL-1β),IL-6,IL-18,tumor necrosis factor-α(TNF-α),and transforming growth factor-β1(TGF-β1),significantly decreased in the SZ-A thermo-sensitive hydrogel group.The integrity of the colonic mucosal barrier was significantly enhanced following the application of SZ-A thermo-sensitive hydrogel.In conclusion,rectal administration of SZ-A in situ thermo-sensitive hydrogel effectively alleviated UC symptoms,inhibited the secretion of inflammatory factors,and promoted the repair of the colonic mucosal barrier.This approach holds promise as a potential treatment for UC.展开更多
It aims to investigate the protective effects of sodium hyaluronate,panthenol,Portulaca oleracea L.and Calendula officinalis L.on hyperosmotic dehydration-induced injury of human immortalized keratinocytes(HaCaT).The ...It aims to investigate the protective effects of sodium hyaluronate,panthenol,Portulaca oleracea L.and Calendula officinalis L.on hyperosmotic dehydration-induced injury of human immortalized keratinocytes(HaCaT).The safety mass concentrations of four raw materials were screened by detecting cell viability,and the secretion of hyaluronic acid(HA)was determined using the ELISA method.The expression of HaCaT barrier function related genes(OVOL1,EREG,TGM1,TGM2,IVL,IRF6,THBS1,CASP14)was detected at the mRNA level to explore the regulatory effect of four raw materials on these genes.The results demonstrate that pretreatment with the four kinds of raw materials could increase the cell viability after hyperosmotic dehydration,promote the secretion of HA,and improve the expression of barrier function related genes after hyperosmotic dehydration,among which panthenol and Calendula officinalis L.are better.The results show that the four raw materials have a certain protective effect on the hyperosmotic dehydration cell model,which provides data support for its application in cosmetics.展开更多
目的:研究超皮秒激光联合滚轮微针及海藻糖皮肤屏障修复敷料治疗黄褐斑的临床有效性及安全性。方法:选取2023年2月-3月就诊于河南省人民医院的20例稳定期黄褐斑患者,给予超皮秒激光联合微针及海藻糖皮肤屏障修复敷料治疗,观察治疗前后...目的:研究超皮秒激光联合滚轮微针及海藻糖皮肤屏障修复敷料治疗黄褐斑的临床有效性及安全性。方法:选取2023年2月-3月就诊于河南省人民医院的20例稳定期黄褐斑患者,给予超皮秒激光联合微针及海藻糖皮肤屏障修复敷料治疗,观察治疗前后黄褐斑的临床效果。结果:20例患者经3次联合治疗后,患者满意度为90%,治疗有效率为85%,黄褐斑面积及严重程度评分(mMASI)下降(P<0.05),皮肤病生活质量评分(Dermatology Life Quality Index,DLQI)下降(P<0.05)。治疗后经皮水分丢失明显降低(P<0.05),皮肤角质层含水量增加(P<0.05),L^(*)值升高(P<0.05),a^(*)值降低(P<0.05),b^(*)值无明显变化(P>0.05)。本研究治疗期间3例患者治疗后即刻局部红斑水肿、面部轻微疼痛,给予冷敷处理后均缓解,所有患者均未发生炎症后色素沉着、水疱等严重不良反应。结论:超皮秒激光联合微针及海藻糖皮肤屏障修复敷料治疗黄褐斑效果显著,且安全性良好。展开更多
目的:研究氢分子联合热敷在敏感性皮肤修复中的应用效果。方法:将2021年11月-2022年1月120例面部敏感性皮肤志愿者随机分为实验组和对照组。对照组仅用氢睐~?光感修护面膜,实验组使用氢睐^(■)光感修护面膜和富氢热敷贴组合。使用前和...目的:研究氢分子联合热敷在敏感性皮肤修复中的应用效果。方法:将2021年11月-2022年1月120例面部敏感性皮肤志愿者随机分为实验组和对照组。对照组仅用氢睐~?光感修护面膜,实验组使用氢睐^(■)光感修护面膜和富氢热敷贴组合。使用前和使用第28天,采用VISIA皮肤图像分析仪对两组志愿者进行检测并进行安全性和满意度评价,并检测两组角质层含水量和皮肤经皮失水量(Trans epidermal water loss,TEWL)。结果:联合使用28 d后,实验组VISIA紫外线色斑、红色区分值及角质层含水量、TEWL均较使用前明显改善,差异有统计学意义(P<0.05)。两组志愿者均未出现皮肤不良反应,且两组使用满意率均≥80%。结论:氢分子结合热敷对敏感性皮肤屏障的修复功效明显,值得临床推广使用。展开更多
文摘Aim: To evaluate the possible advantages of dermo-cosmetic products formulated with thermal spring water instead of deionized water. We studied the effect of a dermo-cosmetic product on skin barrier recovery after injury. In one test the product was formulated with de-ionized water and again using the identical product formulated with thermal spring water. Study Design/Methods: Stratum corneum of human skin explants was removed (and not removed for the control) with an ether/acetone mixture. A cosmetic product, either formulated with de-ionized or thermal spring water, was then topically applied on the explants. After a 5-day incubation period, epidermal expression of aquaporine-3, filaggrin, claudin-4 and claudin-6 was studied by using immunohistochemical techniques. Results: The formulation containing de-ionized water seemed to act on the epidermal expression of filaggrin and claudin-4. When thermal spring water was used to make the formulation, we noted that this expression was greatly enhanced. The formulation containing thermal spring water also acted to increase aquaporin-3 and claudin-6 expression. Conclusion: The use of thermal spring water in cosmetic formulations would appear to contribute to the cosmetic product’s efficacy. It was also interesting to note that this study revealed claudin-6 expression in human skin for the first time.
基金financially supported by the National Natural Science Foundation(No.82304393,China)Beijing Nova Program(Nos.Z211100002121127 and 20220484219,China)+1 种基金Beijing Natural Science Foundation(No.L212059,China)CAMS Innovation Fund for Medical Sciences(No.2021-I2M-1-028,China)。
文摘Ulcerative colitis(UC)is a chronic inflammatory bowel disease characterized by persistent inflammation of the colon and disrupted intestinal function.Ramulus mori(Sangzhi)alkaloids(SZ-A),derived from twigs of mulberry,were approved by the National Medical Products Administration in 2020 for treating type 2 diabetes mellitus.Accumulated evidence has confirmed that SZ-A also alleviates non-alcoholic fatty liver disease and ameliorates inflammation,indicating its potential to address inflammation in UC.However,the treatment of UC faces challenges due to low drug delivery efficiency and short retention time.To overcome these challenges,an injectable and adherent in-situ thermo-sensitive hydrogel containing SZ-A was developed for rectal drug delivery,utilizing the thermo-sensitive polymers Poloxamer 407and 188.The thermo-sensitive hydrogel system was designed with a moderate gelation temperature of 32±0.5℃,a short gelation time of 64 s,a p H range of 7-10,high moisturizing capability exceeding 90%,and moderate mechanical strength of 4-5 s.In a rat model with UC,the in situ thermo-sensitive hydrogel significantly extended the retention time at the colonic site and enabled sustained release after rectal administration.Symptoms of UC were markedly reduced following rectal administration of SZ-A thermosensitive hydrogel.Furthermore,the release of inflammatory factors,such as interleukin-1β(IL-1β),IL-6,IL-18,tumor necrosis factor-α(TNF-α),and transforming growth factor-β1(TGF-β1),significantly decreased in the SZ-A thermo-sensitive hydrogel group.The integrity of the colonic mucosal barrier was significantly enhanced following the application of SZ-A thermo-sensitive hydrogel.In conclusion,rectal administration of SZ-A in situ thermo-sensitive hydrogel effectively alleviated UC symptoms,inhibited the secretion of inflammatory factors,and promoted the repair of the colonic mucosal barrier.This approach holds promise as a potential treatment for UC.
文摘It aims to investigate the protective effects of sodium hyaluronate,panthenol,Portulaca oleracea L.and Calendula officinalis L.on hyperosmotic dehydration-induced injury of human immortalized keratinocytes(HaCaT).The safety mass concentrations of four raw materials were screened by detecting cell viability,and the secretion of hyaluronic acid(HA)was determined using the ELISA method.The expression of HaCaT barrier function related genes(OVOL1,EREG,TGM1,TGM2,IVL,IRF6,THBS1,CASP14)was detected at the mRNA level to explore the regulatory effect of four raw materials on these genes.The results demonstrate that pretreatment with the four kinds of raw materials could increase the cell viability after hyperosmotic dehydration,promote the secretion of HA,and improve the expression of barrier function related genes after hyperosmotic dehydration,among which panthenol and Calendula officinalis L.are better.The results show that the four raw materials have a certain protective effect on the hyperosmotic dehydration cell model,which provides data support for its application in cosmetics.
文摘目的:研究超皮秒激光联合滚轮微针及海藻糖皮肤屏障修复敷料治疗黄褐斑的临床有效性及安全性。方法:选取2023年2月-3月就诊于河南省人民医院的20例稳定期黄褐斑患者,给予超皮秒激光联合微针及海藻糖皮肤屏障修复敷料治疗,观察治疗前后黄褐斑的临床效果。结果:20例患者经3次联合治疗后,患者满意度为90%,治疗有效率为85%,黄褐斑面积及严重程度评分(mMASI)下降(P<0.05),皮肤病生活质量评分(Dermatology Life Quality Index,DLQI)下降(P<0.05)。治疗后经皮水分丢失明显降低(P<0.05),皮肤角质层含水量增加(P<0.05),L^(*)值升高(P<0.05),a^(*)值降低(P<0.05),b^(*)值无明显变化(P>0.05)。本研究治疗期间3例患者治疗后即刻局部红斑水肿、面部轻微疼痛,给予冷敷处理后均缓解,所有患者均未发生炎症后色素沉着、水疱等严重不良反应。结论:超皮秒激光联合微针及海藻糖皮肤屏障修复敷料治疗黄褐斑效果显著,且安全性良好。
文摘目的:研究氢分子联合热敷在敏感性皮肤修复中的应用效果。方法:将2021年11月-2022年1月120例面部敏感性皮肤志愿者随机分为实验组和对照组。对照组仅用氢睐~?光感修护面膜,实验组使用氢睐^(■)光感修护面膜和富氢热敷贴组合。使用前和使用第28天,采用VISIA皮肤图像分析仪对两组志愿者进行检测并进行安全性和满意度评价,并检测两组角质层含水量和皮肤经皮失水量(Trans epidermal water loss,TEWL)。结果:联合使用28 d后,实验组VISIA紫外线色斑、红色区分值及角质层含水量、TEWL均较使用前明显改善,差异有统计学意义(P<0.05)。两组志愿者均未出现皮肤不良反应,且两组使用满意率均≥80%。结论:氢分子结合热敷对敏感性皮肤屏障的修复功效明显,值得临床推广使用。
