Studies on the role of the skin microbiome in healthy skin and under pathogenic conditions

2015 ◽  
Author(s):  
Gábor Tax
Keyword(s):  
Skin Microbiome ◽  
Healthy Skin

scholarly journals From Dysbiosis to Healthy Skin: Major Contributions of Cutibacterium acnes to Skin Homeostasis

2021 ◽  
Vol 9 (3) ◽  
pp. 628
Author(s):  
Miquel Rozas ◽  
Astrid Hart de Ruijter ◽  
Maria Jose Fabrega ◽  
Amine Zorgani ◽  
Marc Guell ◽  
...  
Keyword(s):  
Clonal Diversity ◽  
Skin Microbiome ◽  
Skin Disorders ◽  
Healthy Skin ◽  
Local Skin ◽  
Cutibacterium Acnes ◽  
The Face ◽  
Skin Commensals ◽  
Niche Competition

Cutibacterium acnes is the most abundant bacterium living in human, healthy and sebum-rich skin sites, such as the face and the back. This bacterium is adapted to this specific environment and therefore could have a major role in local skin homeostasis. To assess the role of this bacterium in healthy skin, this review focused on (i) the abundance of C. acnes in the skin microbiome of healthy skin and skin disorders, (ii) its major contributions to human skin health, and (iii) skin commensals used as probiotics to alleviate skin disorders. The loss of C. acnes relative abundance and/or clonal diversity is frequently associated with skin disorders such as acne, atopic dermatitis, rosacea, and psoriasis. C. acnes, and the diversity of its clonal population, contributes actively to the normal biophysiological skin functions through, for example, lipid modulation, niche competition and oxidative stress mitigation. Compared to gut probiotics, limited dermatological studies have investigated skin probiotics with skin commensal strains, highlighting their unexplored potential.

scholarly journals Illuminating the Role of Vitamin A in Skin Innate Immunity and the Skin Microbiome: A Narrative Review

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 302
Author(s):  
Fritzlaine C. Roche ◽  
Tamia A. Harris-Tryon
Keyword(s):  
Vitamin A ◽  
Innate Immune ◽  
Narrative Review ◽  
Skin Microbiome ◽  
Skin Infections ◽  
Inflammatory Skin Disease ◽  
Skin Immunity ◽  
Impaired Immune Response ◽  
Increased Susceptibility

Vitamin A is a fat-soluble vitamin that plays an important role in skin immunity. Deficiencies in Vitamin A have been linked to impaired immune response and increased susceptibility to skin infections and inflammatory skin disease. This narrative review summarizes recent primary evidence that elucidates the role of vitamin A and its derivatives on innate immune regulators through mechanisms that promote skin immunity and sustain the skin microbiome.

scholarly journals Antioxidants for Healthy Skin: The Emerging Role of Aryl Hydrocarbon Receptors and Nuclear Factor-Erythroid 2-Related Factor-2

Nutrients ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 223 ◽  
Author(s):  
Masutaka Furue ◽  
Hiroshi Uchi ◽  
Chikage Mitoma ◽  
Akiko Hashimoto-Hachiya ◽  
Takahito Chiba ◽  
...  
Keyword(s):  
Aryl Hydrocarbon Receptors ◽  
Related Factor ◽  
Nuclear Factor ◽  
Healthy Skin ◽  
Aryl Hydrocarbon

Identification of Malassezia Species Isolated from Pityriasis Versicolor by CHROMagar-Medium

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mohamed Abd El-Naeem Sallam ◽  
Mohamed Taha Mahmoud El-Sayed ◽  
Rania Mahmoud El-husseiny ◽  
Sara Hossam Abd El-Aleem Ibrahim Shaheen
Keyword(s):  
Normal Skin ◽  
Previous Treatment ◽  
Pityriasis Versicolor ◽  
Skin Microbiome ◽  
Age Group ◽  
Malassezia Species ◽  
Dermatological Examination ◽  
High Prevalence ◽  
Hot And Humid Climates

Abstract Background Pityriasis versicolor is a chronic superficial fungal infection seen worldwide, with high prevalence observed in hot and humid climates. Objectives The aim of this work was to isolate and identify Malassezia species from pityriasis versicolor using specific fast gtowth media; Chrom agar to obtain a better understanding of the role of each species in the etiology of disease. Patients and Methods This study was conducted on 70 patients with clinical diagnosis of pityriasis versicolor with positive KOH test. All of the participants were subjected to a well informed consents, full history taking including age, sex, site of the lesions and any previous treatment, full general and dermatological examination to determine site, color of the lesions and Wood's light examination. Results Our results reported 94.3% of studied patients yielded growth on culture while 5.7% did not show any growth. The predominant age group was ≥ 25 years old. Furthermore it was found that PV affected male subjects (62.90%) more than the females (37.1%). Conclusion Malassezia yeasts, although are considered a part of normal skin microbiome, is a known cause of pityriasis versicolor. PV was more common in males in the age group ≥ 25yrs. The most affected body site was the chest, the most common variant is hyperpigmented type, and the commonest isolate was M.furfur.

scholarly journals The role of the skin microbiome in atopic dermatitis

2019 ◽  
Vol 122 (3) ◽  
pp. 263-269 ◽  
Author(s):  
Teruaki Nakatsuji ◽  
Richard L. Gallo
Keyword(s):  
Atopic Dermatitis ◽  
Skin Microbiome

scholarly journals The role of the skin microbiome in atopic dermatitis: a systematic review

2017 ◽  
Vol 177 (5) ◽  
pp. 1272-1278 ◽  
Author(s):  
R.D. Bjerre ◽  
J. Bandier ◽  
L. Skov ◽  
L. Engstrand ◽  
J.D. Johansen
Keyword(s):  
Systematic Review ◽  
Atopic Dermatitis ◽  
Skin Microbiome

scholarly journals Microbiota in Healthy Skin and in Atopic Eczema

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Giuseppe Baviera ◽  
Maria Chiara Leoni ◽  
Lucetta Capra ◽  
Francesca Cipriani ◽  
Giorgio Longo ◽  
...  
Keyword(s):  
Atopic Eczema ◽  
Inflammatory Diseases ◽  
Normal Skin ◽  
Innate Immune ◽  
Microbiota Composition ◽  
Healthy Skin ◽  
Skin Microbiota ◽  
Disease States ◽  
The Relationship

The Italian interest group (IG) on atopic eczema and urticaria is member of the Italian Society of Allergology and Immunology. The aim of our IG is to provide a platform for scientists, clinicians, and experts. In this review we discuss the role of skin microbiota not only in healthy skin but also in skin suffering from atopic dermatitis (AD). A Medline and Embase search was conducted for studies evaluating the role of skin microbiota. We examine microbiota composition and its development within days after birth; we describe the role of specific groups of microorganisms that colonize distinct anatomical niches and the biology and clinical relevance of antimicrobial peptides expressed in the skin. Specific AD disease states are characterized by concurrent and anticorrelated shifts in microbial diversity and proportion ofStaphylococcus. These organisms may protect the host, defining them not as simple symbiotic microbes but rather as mutualistic microbes. These findings reveal links between microbial communities and inflammatory diseases such as AD and provide novel insights into global shifts of bacteria relevant to disease progression and treatment. This review also highlights recent observations on the importance of innate immune systems and the relationship with normal skin microflora for the maintenance of healthy skin.

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