Xin Dan a,1 , Songjie Li a,1 , Han Chen a , Ping Xue a , Bo Liu a , Yikun Ju b , Lanjie Lei c,**,
Yang Li a,***, Xing Fan a,*
a Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
b Department of Plastic and Aesthetic (Burn) Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
c Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, 310015, China
* Corresponding author.
** Corresponding author.
*** Corresponding author.
E-mail addresses: 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (L. Lei), 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (Y. Li), 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (X. Fan).
1 These authors contributed equally to this work and shared the first authorship.
ARTICLE INFO
Keywords:
Biomaterials、Skin anti-aging、Plastic surgery、Tissue regeneration、Medical aesthetics
ABSTRACT
Skin aging is the phenomenon of degenerative changes in the structure and function of skin tissues over time and is manifested by a gradual loss of skin elasticity and firmness, an increased number of wrinkles, and hyperpigmentation. Skin anti-aging refers to a reduction in the skin aging phenomenon through medical cosmetic technologies. In recent years, new biomaterials have been continuously developed for improving the appearance of the skin through mechanical tissue filling, regulating collagen synthesis and degradation, inhibiting pigmentation, and repairing the skin barrier. This review summarizes the mechanisms associated with skin aging, describes the biomaterials that are commonly used in medical aesthetics and their possible modes of action, and discusses the application strategies of biomaterials in this area. Moreover, the synergistic effects of such biomaterials and other active ingredients, such as stem cells, exosomes, growth factors, and antioxidants, on tissue regeneration and anti-aging are evaluated. Finally, the possible challenges and development prospects of biomaterials in the field of anti-aging are discussed, and novel ideas for future innovations in this area are summarized.
Chidchanok Prathumwon a , Songyot Anuchapreeda b , Kanokwan Kiattisin a , Pawaret Panyajai b , Panikchar Wichayapreechar d , Young-Joon Surh e , Chadarat Ampasavate a,c,*
a Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
b Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
c Center for Excellence in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
d Department of Cosmetic Sciences, School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
e College of Pharmacy, Seoul National University, Seoul 151-741, South Korea
Corresponding author at: Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
E-mail address: 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (C. Ampasavate).
Curcumin (Cur) and epigallocatechin gallate (EGCG), the primary active compounds in turmeric and green tea, respectively, have been investigated for their anti-aging potential. The Cur and EGCG combination was encapsulated in sustained-release nanostructured lipid carriers (NLCs) to enhance their bioactivities and pharmaceutical properties. A significant enhancement in the antioxidant activities of the Cur and EGCG combination was observed at an optimal ratio, as demonstrated by the 2,2-diphenyl-1-picrylhydrazyl radical scavenging assay (118.83 ± 3.78 %), ferric ion reducing antioxidant power assay (217.25 ± 13.45 %), and lipid peroxidation inhibition assay (106.08 ± 12.93 %), compared to Cur alone without compromising the antioxidant activities and total phenolic content of EGCG. This is due to the enhancement of total phenolic content of the combination of 218.83 ± 10.57 %. For anti-aging activities, the combination exhibited stimulation of SIRT1 protein and inhibition of collagenase and elastase of 27.53 ± 0.73 %, 43.70 ± 1.05 % and 51.76 ± 6.52 % compared with that achieved with Cur alone, respectively. The incorporation of the Cur and EGCG combination into NLCs resulted in high entrapment efficiencies of 98.60 ± 0.05 % for Cur and 98.40 ± 0.08 % for EGCG, with corresponding loading capacities of 0.789 ± 0.001 % and 3.935 ± 0.003 %, respectively. When formulated NLCs into an emulgel base, the system demonstrated sustained release profiles over 48 h, with 12.82 ± 0.99 % release of Cur and 63.77 ± 5.76 % release of EGCG. Significant skin retention was also observed after 24 h, with 23.88 ± 1.71 % Cur and 22.79 ± 4.65 % EGCG retained in the skin. Therefore, Cur: EGCG-loaded NLCs in emulgel can deliver the active compounds into the dermis, enhancing skin penetration, sustained delivery, and anti-aging activity superior to each conventional single active compound in topical formulations.
Keywords: Curcumin Epigallocatechin gallate SIRT1 Anti-aging HaCaT cells Nanostructured lipid carriers Skin
创伤是指由于各种致伤因素导致的机体软组织、骨骼甚至内脏器官等等各个系统的损伤,创伤可以根据发生地点、受伤部位、受伤组织、致伤因素及皮肤完整程度进行分类。 按发生地点分为战争伤、工业伤、农业伤、交通伤、体育伤、生活伤等;按受伤部位分为颅脑创伤、胸部创伤、腹部创伤、各部位的骨折和关节脱位、手部伤等;按受伤类型分为骨折、脱位、脑震荡、器官破裂等;相邻部位同时受伤者称为联合伤(如胸腹联合伤);按受伤的组织或器官分类时,又可按受伤组织的深浅分为软组织创伤、骨关节创伤和内脏创伤。软组织创伤指皮肤、皮下组织和肌肉的损伤,也包括行于其中的血管和神经。单纯的软组织创伤一般较轻,但广泛的挤压伤可致挤压综合征。血管破裂大出血亦可致命。骨关节创伤包括骨折和脱位,并按受伤的骨或关节进一步分类并命名。如股骨骨折、肩关节脱位等。内脏创伤又可按受伤的具体内脏进行分类和命名。如脑挫裂伤、肺挫伤、肝破裂等。同一致伤原因引起两个以上部位或器官的创伤,称为多处伤或多发伤。按致伤因素,分为火器伤、切伤、刺伤、撕裂伤、挤压伤、扭伤、挫伤等。按皮肤完整程度,分为闭合性创伤、开放性创伤等。
伤口世界平台生态圈,以“关爱人间所有伤口患者”为愿景,连接、整合和拓展线上和线下的管理慢性伤口的资源,倡导远程、就近和居家管理慢性伤口,解决伤口专家的碎片化时间的价值创造、诊疗经验的裂变复制、和患者的就近、居家和低成本管理慢性伤口的问题。
2019广东省医疗行业协会伤口管理分会年会
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