Javier Ganz,1,2,3,8,9 Lovelace J. Luquette,4,8 Sara Bizzotto,1,2,3,5,8 Michael B. Miller,1,3,6 Zinan Zhou,1,2,3 Craig L. Bohrson,4
Hu Jin,4 Antuan V. Tran,4 Vinayak V. Viswanadham,4 Gannon McDonough,6 Katherine Brown,6 Yasmine Chahine,1
Brian Chhouk,1 Alon Galor,4 Peter J. Park,4,7,* and Christopher A. Walsh1,2,3,10,*
1 Division of Genetics and Genomics, Manton Center for Orphan Disease Research, Department of Pediatrics, and Howard Hughes Medical Institute, Boston Childrens Hospital, Boston, MA 02115, USA
2 Departments of Pediatrics and Neurology, Harvard Medical School, Boston, MA 02115, USA
3 Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
4 Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA
5 Sorbonne Universite´ , Institut du Cerveau (Paris Brain Institute) ICM, Inserm, CNRS, Hoˆ pital de la Pitie´ Salpeˆ trie`re, 75013 Paris, France
6 Department of Pathology, Brigham and Womens Hospital, Harvard Medical School, Boston, MA 02115, USA
7 Division of Genetics, Brigham and Womens Hospital, Boston, MA 02115, USA
8 These authors contributed equally
9 Present address: Merck Research Laboratories, Cambridge, MA 02142, USA
10 Lead contact
*Correspondence: 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。 (P.J.P.), 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.A.W.)
https://doi.org/10.1016/j.cell.2024.02.025
SUMMARY
Characterizing somatic mutations in the brain is important for disentangling the complex mechanisms of aging, yet little is known about mutational patterns in different brain cell types. Here, we performed wholegenome sequencing (WGS) of 86 single oligodendrocytes, 20 mixed glia, and 56 single neurons from neurotypical individuals spanning 0.4–104 years of age and identified >92,000 somatic single-nucleotide variants (sSNVs) and small insertions/deletions (indels). Although both cell types accumulate somatic mutations linearly with age, oligodendrocytes accumulated sSNVs 81% faster than neurons and indels 28% slower than neurons. Correlation of mutations with single-nucleus RNA profiles and chromatin accessibility from the same brains revealed that oligodendrocyte mutations are enriched in inactive genomic regions and are distributed across the genome similarly to mutations in brain cancers. In contrast, neuronal mutations are enriched in open, transcriptionally active chromatin. These stark differences suggest an assortment of active mutagenic processes in oligodendrocytes and neurons.
an Yang1 Xinyuan Zhang2 Hua Wang1 Miao Guo1 Jinlong Zhang1 Xuejiao Feng3 Jiayi Yu3 Jiahui Yang3 Jinjin Zhu4 Yiyu Wang3
1 Research & Development Center, Mageline Biology Tech Co., Ltd, Wuhan, Hubei, China
2 Shanghai Skinshield Clinical Testing and Technological Research Ltd., Shanghai, China
3 Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
4 Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
Correspondence
Jinjin Zhu, Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, 430022, China.
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Yiyu Wang, Department of Dermatology, Air Force Medical Center, PLA, Beijing, China.
Abstract
Background: The delicate periorbital region is susceptible to skin dehydration, wrinkles, and loss of elasticity. Thus, targeted and effective anti-aging interventions are necessary for the periorbital area.
Aim: To evaluate the efficacy and safety of a new anti-aging eye cream formulated with the active complex (Yeast/rice fermentation filtrate, N-acetylneuraminic acid, palmityl tripeptide-1, and palmitoyl tetrapeptide-7).
Methods: The cell viability and expressions of key extracellular matrix (ECM) components of the active complex were evaluated using a human skin fibroblast model. In the 12-week clinical trial, skin hydration, elasticity, facial photographs, and collagen density following eye cream application were assessed using Corneometer, Cutometer, VISIA, and ultrasound device, respectively. Dermatologists and participants evaluated clinical efficacy and safety at baseline, and after 4, 8, and 12 weeks.
Results: PCR and immunofluorescent analyses revealed that the active complex significantly stimulated fibroblast proliferation (p < 0.05) and markedly promote the synthesis of collagen and elastin. Clinical findings exhibited a substantial enhancement in skin hydration (28.12%), elasticity (18.81%), and collagen production (54.99%) following 12 weeks of eye cream application. Dermatological evaluations and participants’ assessments reported a significant improvement in skin moisture, roughness, elasticity, as well as fine lines and wrinkles by week 8.
Conclusion: The new anti-aging eye cream, enriched with the active complex, demonstrates comprehensive rejuvenating effects, effectively addressing aging concerns in the periorbital area, coupled with a high safety profile.
KEYWORDS
anti-aging, collagen, elastin, extracellular matrix, eye cream, wrinkle
原创： 十六点五 中山二院糖尿病足中心
多学科协作诊疗模式（MDT）是21世纪以来国内外新出现的最重要的医学模式之一。目的是使传统的个体式、经验式的医疗模式转变为小组协作共同决策的模式，其可以针对特定疾病，整合医疗资源，依托多学科团队，以求能够为患者制定最佳的诊断和治疗方案，并在深入交流的过程中提高各个专科的水平。
中山二院糖尿病足中心
一位援疆医生讲述了自己的故事：一天夜里，他接诊了一名遭遇车祸的病人，肝脏破裂，生命垂危。虽经全力抢救，病人终因失血过多而死亡。当医生告诉家属这个坏消息后，家属不仅没有责怪医生，反而向医生道谢，然后要求把切下的破碎肝脏带回去，和死者一起埋葬。丧事办完后，家属又来到医院结清所有费用。此举令这位医生十分感动。从此，每当遇到危重患者，他都没有后顾之忧，总是愿意冒险一搏。
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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