Results 161 to 170 of about 46,416 (289)

Schutzmechanismen menschlicher Zellen gegen UVB-Bestrahlung Abschlussbericht

, 1997
The project's aim was to better characterize protection mechanisms of human cells against UVB-light. It could be observed that overexpression of heat shock proteins (hsp70) induces resistance of cells against UVB-light with regard to cytotoxicity.
Universitaetsklinik und Poliklinik fuer Hautkrankheiten, Muenster (Germany). Lab. fuer Zellbiologie und Immunbiologie, Schwarz, T.   +1 more
core  

Revisiting the action spectrum of DNA damage: Chemiexcitation and the expanded biological spectrum of cyclobutane pyrimidine dimer formation

Photochemistry and Photobiology, EarlyView.
UVB and UVA generate cyclobutane pyrimidine dimers (CPDs) during irradiation (purple). After exposure ends, chemiexcitation in pigmented melanocytes continues to generate delayed CPDs (yellow), even as repair removes some pre‐existing lesions. Consequently, total CPD burden can rise while visible erythema fades.
Jyoti Srivastava, Marcus S. Cooke, Sanjay Premi   +2 more
wiley   +1 more source

Isoflavone-Rich Fraction of Traditional Thai Fermented Soybean (Thua Nao) Protects Dermal Fibroblasts from Photoaging by Modulating MAPK and Akt Signaling Pathways. [PDF]

Int J Mol Sci
U-On N, Jaiwong T, Prongjit A, Semangoen T, Khowsathit J, Dejkriengkraikul P, Yodkeeree S.   +6 more
europepmc   +1 more source

Raman Spectroscopic Analysis of a Desert Cyanobacterium Nostoc sp in Response to UVB Radiation

, 2010
Cyanobacteria are capable of tolerating environmental extremes. To survive in extreme environments, cyanobacteria have developed the capability to adapt to a variety of stresses.
Wang, Gaohong, Liu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China, Chen, Lanzhou, Hao, Zongjie, Liu, Yongding, Hu, Chunxiang, Huang, Zebo, Li, Xiaoyan   +7 more
core  

UV signature mutation hyperhotspots as genomic dosimeters

Photochemistry and Photobiology, EarlyView.
Recurrent UV signature mutations are a sensitive and specific indicator of sun exposure. UV signature mutations (C → T mutations at dipyrimidine sites) were quantified using Duplex Sequencing and a stringent mutation calling protocol to identify true low‐abundance mutations.
Vijay Menon, Alejandro García‐Ruiz, Susan Neveu, Brenda Cartmel, Leah M. Ferrucci, Meg Palmatier, Christine Ko, Kenneth Y. Tsai, Mio Nakamura, Sa Rang Kim, Michael Girardi, Karl Kornacker, Douglas E. Brash   +12 more
wiley   +1 more source

Skin-directed Solius UVB light therapy increases vitamin D levels and alters intestinal microbiome and metabolome homeostasis. [PDF]

Front Microbiol
Jimenez-Sanchez M, Yang H, Sham HP, Huang ZC, Dutz JP, Vallance BA.   +5 more
europepmc   +1 more source

Relationship between vitamin D deficiency and early implant failure and osseointegration

Periodontology 2000, EarlyView.
Abstract Background This systematic review investigated the relationship between pre‐operative vitamin D levels and implant osseointegration and implant‐related outcomes. It also assessed studies involving vitamin D supplementation before implant placement.
Richard J. Miron, Nathan E. Estrin, Ana Paz, Reinhard Gruber, Nima Farshidfar, Yufeng Zhang, Anton Sculean, Thomas G. Wiedemann, Paras Ahmad   +8 more
wiley   +1 more source

Protective Effects of a Mixture of Propolis and <i>Petasites japonicus</i> Against UVB-Induced Photoaging Through Suppression of Oxidative Stress and MAPK/AP-1 Signaling. [PDF]

Int J Mol Sci
Shin JY, Lim JH, Park JH, Cho BO, Hur YK, Kim MY, Lee HK, Jang SI.   +7 more
europepmc   +1 more source

Understanding exosomes in facial esthetics and skin aging

Periodontology 2000, EarlyView.
Abstract Background Skin aging is a multifactorial process mediated by intrinsic (genetic and metabolic) and extrinsic (environmental) factors leading to functional and structural deterioration, including wrinkles, loss of collagen and elastin, as well as various pigmentation disorders.
Richard J. Miron, Catherine Davies, Anton Sculean, Paras Ahmad   +3 more
wiley   +1 more source

Home Phototherapy for Psoriasis: Evidence and Implementation. [PDF]

Photodermatol Photoimmunol Photomed
Ghanim D, Thomas LE, Kim D, Cervantes M, Gill M, Yang S, Babaei N, Wu JJ.   +7 more
europepmc   +1 more source