Dataset Information

Facial Skin Biophysical Multi-Parameter and Microbiome-Based Korean Skin Cutoype (KSC) Determination

ABSTRACT: In this study, we conducted an integrated analysis of skin measurements, clinical BSTI surveys, and the skin microbiome of 950 Korean subjects to examine the ideal skin microbiome-biophysical association. By utilizing four skin biophysical parameters, we identified four distinct Korean Skin Cutotypes (KSCs) and categorized the subjects into three aging groups based on their age distribution. We established strong connections between 15 core genera and the four KSC types within the three aging groups, revealing three prominent clusters of the facial skin microbiome. Together with skin microbiome variations, skin tone/elasticity distinguishes aging groups while oiliness/hydration distinguishes individual differences within aging groups. Our study provides prospective reality data for customized skin care based on the microbiome environment of each skin type.

PROVIDER: EGAS00001007334 | EGA |

REPOSITORIES: EGA

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Project description:Genes involved in the inflammatory response resulting in allergic contact dermatitis (ACD) are only partly known. In this study, we introduce the use of high density oligonucleotide arrays for gene expression profiling in human skin during the elicitation of ACD. Skin biopsies from normal and nickel-exposed skin were obtained from 7 nickel-allergic patients and 5 non-allergic controls at four different time points during elicitation of eczema: 0h, 7h, 48h and 96h. Each gene expression profile was analysed by hybridization to high density oligonucletide arrays. Cluster analysis of 74 genes found to be differentially expressed in the patients over time revealed that the patient samples may be categorised into two groups: An early time point group (0h and 7h) and a late time point group (48h and 96h). Compared to the early time points, late time point skin samples were characterised by the up-regulation of inflammatory molecules including genes involved in the class I antigen presenting pathway and genes involved in lymphocyte adhesion and motility ; Correspondence analysis including both patients and controls revealed three distinct groups: i) the control group, ii) the early time point patient group (0h and 7h) and iii) the late time point patient group (48h and 96h). Experiment Overall Design: For the microarray study, 7 nickel-allergic patients and 5 non-allergic controls were recruited. All subjects were female. The skin covering the upper nates was exposed to nickel delivered during a patch test. Skin biopsies were taken to generate a time-series. Skin was exposed to nickel for 0h, 7h, 48h and 96h. Experiment Overall Design: All nickel allergic patients reacted with visible eczama at the 48h and 96h time-points. No eczema was vissible at the 0h or 7h time-points. Control subjects did not show visible eczema at any time-point. Experiment Overall Design: RNA was extracted from the skin biopsies and 34 biopsies yielded RNA of sufficient quantity and quality for micro-array analysis.

Dataset Information

Facial Skin Biophysical Multi-Parameter and Microbiome-Based Korean Skin Cutoype (KSC) Determination

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