Yolanda Helfrich

Injury enhances TLR2 function and antimicrobial peptide expression through a vitamin D–dependent mechanism

Jürgen Schauber, Robert A. Dorschner, Alvin B. Coda et al. · Journal of Clinical Investigation · 2007 · 666 citations · Full text

Vitamin D–dependent Mechanism, Microbial Pathogens, Innate Immune System +22

Overview of skin aging and photoaging.

Yolanda Helfrich, Dana L. Sachs, John J. Voorhees · PubMed · 2008 · 241 citations

Aging, Ophthalmology, Longevity +10

Clinical, Histologic, and Molecular Analysis of Differences Between Erythematotelangiectatic Rosacea and Telangiectatic Photoaging

Yolanda Helfrich, Lisa E. Maier, Yilei Cui et al. · JAMA Dermatology · 2015 · 95 citations · Full text

Atrophic and hypertrophic photoaging: Clinical, histologic, and molecular features of 2 distinct phenotypes of photoaged skin

Dana L. Sachs, James Varani, Heather Chubb et al. · Journal of the American Academy of Dermatology · 2019 · 90 citations

Photochemistry, Distinct Phenotypes, Cutaneous Biology +8

A randomized, controlled, split-face clinical trial of 1320-nm Nd:YAG laser therapy in the treatment of acne vulgaris

Jeffrey S. Orringer, Sewon Kang, Lisa M Maier et al. · Journal of the American Academy of Dermatology · 2007 · 87 citations

Yag Laser Therapy, Ophthalmology, Acne Vulgaris +6