陈国东

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26 8月 2019

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Author : 伤口世界

擅长领域：介入微创诊疗血管性疾病等，如下肢动脉硬化闭塞症、糖尿病足、血管畸形、静脉曲张、动静脉血栓形成、静脉狭窄闭塞等。

广州市第一人民医院介入放射科主任，主任医师，博士。广东省医疗行业协会伤口管理分会副主委。广东省首批获三级以上外周血管介入和综合介入手术资质医师

Latest from 伤口世界

Small molecule conjugates with selective estrogen receptor b agonism promote anti-aging benefits in metabolism and skin recovery
Skin anti-aging potential of Launaea procumbens extract: Antioxidant and enzyme inhibition activities supported by ADMET and molecular docking studies
Phytoestrogens as Natural Anti-Aging Solutions for Enhanced Collagen Synthesis in Skin
Cordyceps militaris-Derived Bioactive Gels: Therapeutic and Anti-Aging Applications in Dermatology
Investigation of the anti-skin aging effects of taurine through mendelian randomization analysis of its relationship with immune cells

K2 Content

Small molecule conjugates with selective estrogen receptor b agonism promote anti-aging benefits in metabolism and skin recovery 2025-05-16 00:00

Tarik Zahra,b,y , Vijay K. Bodac,d,y , Jian Gee,f,y , Lexiang Yua,g , Zhongzhi Wuc,d , Jianwen Quee,f,h, *, Wei Lic,d, *, Li Qianga,g, *

a Naomi Berrie Diabetes Center, Columbia University, New York, NY 10032, USA

b Department of Molecular Pharmacology and Therapeutics, Columbia University, New York, NY 10032, USA

c Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA

d Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA

e Division of Digestive and Liver Diseases, Columbia University, New York, NY 10032, USA

f Center for Human Development, Columbia University, New York, NY 10027, USA

g Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA

h Department of Medicine, Columbia University, New York, NY 10032, USA

*Corresponding authors.

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。 (Jianwen Que), 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。 (Wei 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。 (Li Qiang).

These authors made equal contributions to this work.

Peer review under the responsibility of Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Received 22 October 2023; received in revised form 13 December 2023; accepted 5 January 2024

KEY WORDS Estrogen receptor b; Aging; Metabolism; Skin injury; Muscle metabolism; Small molecule conjugates; Regeneration; Adiposity
Skin anti-aging potential of Launaea procumbens extract: Antioxidant and enzyme inhibition activities supported by ADMET and molecular docking studies 2025-05-15 00:00

Hanan Khojah a , Shaima R. Ahmed a,* , Shahad Y. Alharbi a , Kholood K. AlSabeelah a ,

Hatham Y. Alrayyes a , Kadi B. Almusayyab a , Shahad R. Alrawiliy a , Raghad M. Alshammari a ,

Sumera Qasim b

a Department of Pharmacognosy, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia

b Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia

Corresponding author at: College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia.

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。 (S.R. Ahmed)

ARTICLE INFO

Keywords:

Launaea procumbens

Anti-aging

ADMET

Docking

ABSTRACT

Aging is a natural process that occurs in all living organisms. Particularly, the skin embodies aging since it serves as a barrier between the body and its surroundings. Previously, we reported the wound healing effect of Launaea procumbens and identified compounds therein. The study aims to explore the skin anti-aging properties of the plant extract. To that effect, the antioxidant potential of L. procumbens methanolic extract (LPM) was assessed using two complementary DPPH and FRAP assays. The enzyme inhibitory effect of the extract on collagenase, elastase, hyaluronidase, and tyrosinase was evaluated to assess the direct skin anti-aging effects. Similarly, the anti-inflammatory activity was evaluated to explore the indirect anti-aging effects via the assessment of extract inhibitory effects on cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX). In addition, ADMET and molecular docking studies were performed to explore the interaction mechanisms of identified compounds in LPM with target enzymes. LPM demonstrated significant antioxidant activity in DPPH (IC50 = 29.08 µg/mL) and FRAP (1214.67 µM FeSO4/g extract) assays. Plant extract showed significant inhibition of collagenase, elastase, hyaluronidase, and tyrosinase (IC50 = 52.68, 43.76, 31.031, and 37.13 µg/mL, respectively). The extract demonstrated significant COX-2 and 5-LOX inhibition capacity with IC50 values of 8.635 and 10.851 µg/mL, respectively. The molecular docking study revealed the high potential of the identified compounds to bind to the active sites of enzymes crucially involved in the skin aging process. ADMET analysis of the compounds revealed their good absorption, distribution, and metabolism profiles, and they were found to be safe as well. Study findings suggest L. procumbens as a promising source for the development of natural skin anti-aging and anti oxidant compounds. This, in turn, may facilitate its incorporation into cosmetic formulations after further investigation.
Phytoestrogens as Natural Anti-Aging Solutions for Enhanced Collagen Synthesis in Skin 2025-05-14 00:00

Nahid Amini | Christina Osterlund | Jessen Curpen | Virginie Lafon-Kolb | Thibaud Richard | Lene Visdal-Johnsen Global Research and Development, Oriflame Cosmetics, Stockholm, Sweden

Correspondence: Nahid Amini (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。)

Received: 19 September 2024 | Revised: 15 November 2024 | Accepted: 25 November 2024

Funding: The authors received no specific funding for this work.

Keywords: collagen | data mining | dermal density | Glycyrrhiza uralensis | phytoestrogen

ABSTRACT

Background: The dermal extracellular matrix (ECM) is a dynamic scaffold composed mainly of proteins, with collagen as the key structural component providing resilience and support to the skin. Post-menopause, declining estrogen levels lead to a significant reduction in skin health, notably a 30% decrease in collagen types I and III within 5 years.

Aim: To discover natural extracts that stimulate collagen production.

Methods: We utilized PathwayStudio to analyze protein–protein interactions and identify regulators of essential collagen types. Our study assessed Glycyrrhiza uralensis extract's ability to boost collagen production and enhance dermal density both in vitro and in vivo.

Results: PathwayStudio analysis highlighted phytoestrogens including glycyrrhizin, isoliquiritigenin, liquiritigenin, liquiritin, and glabrol, as potential candidates. Liquorice rhizome (G. uralensis), used in traditional Chinese medicine, is rich in phytoestrogens like liquiritigenin. The G. uralensis extract increased collagen I and III gene expression and pro-collagen I protein levels in human dermal fibroblasts and inhibited UVB and pollution-induced matrix metalloproteinase-1 (MMP1) production. In an in vivo study, a topical formulation containing the extract significantly improved dermal density after 56days, measured by the DUB SkinScanner.

Conclusions: These findings suggest G. uralensis extract as a promising agent for enhancing collagen production and skin health, particularly in postmenopausal women. Further research is needed to explore its mechanisms and long-term effects.

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

陈国东

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

陈国东

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