Presence of Malassezia Hyphae Is Correlated with Pathogenesis of Seborrheic Dermatitis

Our results support the proposal that the hyphal form of Malassezia could be one of the pathogenic factors that contribute to SD, which has been previously less well studied. This clinical observation paves the way for further investigations of the molecular mechanisms of Malassezia hyphal pathogenicity in SD.

Skin lesions associated with personal protective equipment in medical workers during the COVID-19 pandemic

Aim. Analysis of the incidence of personal protective equipment (PPE)-associated dermatoses among medical workers during the COVID-19 pandemic.Materials and Methods. Screening of the papers indexed by PubMed, EMBASE, Google Scholar, eLibrary, and UpToDate databases, written in English and published from January 1, 2020 to October, 2021. The search keywords were: "medical workers", "skin", "dermatoses", "professional", and "personal protective equipment" in combination with "COVID-19" and "SARS-CoV-2".Results. Occupational contact dermatitis is responsible for 20% of all cases of contact dermatitis which accounts for 90% of all skin disease cases. During the COVID-19 pandemic, from 42.8% to 97.0% of medical workers reported about skin lesions provoked by prolonged wearing of PPE in combination with regular disinfection. About 61.7% of them noted the deterioration of a pre-existing skin disease, and 90.5% reported the appearance of new skin lesion symptoms associated with the PPE usage. The most common symptoms of skin lesions among medical workers were dryness, itching, burning, soreness, and skin rash. Irritant and allergic contact dermatitis, acne, rosacea, and seborrheic dermatitis were the most prevalent skin disorders among the interviewed medical workers. Risk factors for the development of PPE-associated dermatoses were the type and material of PPE, the duration of PPE wearing, and past medical history of skin diseases. Due to the increased incidence of PPE-associated dermatoses among the medical staff, some countries have developed recommendations on the prevention and treatment of undesirable PPE-associated skin reactions in medical professionals. Current research are focused on developing special tools and devices that would serve as a protective barrier between the skin and PPE, ameliorating the damaging effect of the latter.Conclusion. PPE-associated dermatoses are currently widespread among the medical workers, highlighting the need in novel materials for PPE manufacturing to minimise the risk of developing PPE-associated skin lesions.

Influência da Disbiose na Patologia do Couro Cabeludo

In recent years, several studies have demonstrated the involvement of the intestinal microbiota in immune-mediated diseases such as diabetes, ulcerative colitis, and multiple sclerosis. There are few data on the follicular microbiome and its role in the pathogenesis of scalp diseases. Some studies show influence of dysbiosis on these diseases, and manipulation of the microbiome may represent a possible therapeu- tic option. This article reviews current knowledge regarding the impact of dysbiosis on dermatological diseases of the scalp, such as seborrheic dermatitis, psoriasis, alopecia areata, androgenetic alopecia, lichen planus pilaris, frontal fibrosing alopecia and decalvant folliculitis. A broader understanding of this may suggest additional treatments beyond conventional therapies.

Atopic dermatitis and its association with serum immunoglobulin E levels: our experience in KVG medical college and hospital, Karnataka

<p><strong>Background:</strong> Eczema is an inflammatory skin reaction which presents as acute, subacute and chronic forms. Eczemas persisting for more than 6 weeks or characterized by thickening and discoloration of skin is typical of chronic eczema. Atopic dermatitis (AD) is a type of chronic or chronically relapsing eczematous skin disorder. To determine the percentage of AD in all forms of chronic eczema by using HRC. We also estimated serum immunoglobulin E (IgE) levels and determined its correlation with chronic eczemas and with various clinical parameters of HRC.</p><p><strong>Methods:</strong> A total of 50 patients with chronic eczema meeting defined inclusion and exclusion criteria were enrolled in this cross-sectional study after taking an informed consent and approval of institutional ethical committee. All patients were subjected to a detailed history based on a questionnaire. A thorough clinical examination was done to determine all major and minor clinical parameters of HRC for AD. Blood samples were collected and AEC and total serum IgE levels were determined.</p><p><strong>Results:</strong> Most of our study patients were females (64%). Majority of males (77.7%) were farmers and majority of females (56.2%) were housewives assisting in fieldwork activities. Various causes of chronic eczema were clinically diagnosed AD (34%), chronic actinic dermatitis (8%), polymorphic light eruption (4%), airborne contact dermatitis (10%), phyto-photodermatitis (10%), chronic hand and/or foot eczema (16%) and seborrheic dermatitis (2%). Thirty-two patients (64%) satisfied HRC. Among all clinical parameters of HRC, pruritus and xerosis were the commonest in AD patients. Serum IgE level was raised in 58% of chronic eczema and 68.7% of AD patients.</p><p><strong>Conclusions:</strong> Serum IgE levels showed significant association with typical morphology and distribution of lesions, early age of onset and perifollicular accentuation.</p><h2> </h2>

Malassezia Species Associated Seborrheic Dermatitis and Its Comparison between HIV Positive and Negative Patients

Introduction: Malassezia yeasts are lipophilic organisms causing certain skin diseases. Seborrheic dermatitis (SD) is the second most common skin infection caused by Malassezia as well as in HIV/AIDS. Aim: To determine the frequency of association of Malassezia species in HIV infected and HIV non-infected patients with Seborrheic dermatitis. Materials and Methods: The prevalence of Seborrheic dermatitis is 5% in the general population. Hence a sample size of 80 was derived, 40 each of HIV seropositive and HIV seronegative adult patients clinically suspected of having Seborrheic Dermatitis. Specimens were collected by scraping and cellophane tape for KOH and Chicago Sky Blue (CSB) stain, and were cultured on Sabouraud’s dextrose agar. Data were analysed using SPSS version 16.0. P ≤ 0.05 was considered as significant. Results: Majority of the patients i.e. 46 (57.5%) out of 80 were in the age group of 18-30 years with male preponderance. All HIV positive patients with SD had scaly, greasy, itchy, hypo-pigmented and erythematous lesions, & neck (23) and groin (20) were commonest sites. In 39 HIV positive and 22 HIV negative patients, >2 sites were involved. Majority of the HIV negative patients with SD had scaly (40), itchy (24) and hypo-pigmented lesions (27) & dandruff, and scalp (24) & neck (18) were commonest sites. (P<0.05). Twenty HIV positive patients had CD4 count ranging from 200-350 cells/mm3. Malassezia was detected in 38 and 34 HIV positive & negative patients respectively in laboratory diagnosis. Conclusion: Seborrheic Dermatitis has severe presentation at multiple sites in HIV positive patients as compared to HIV negative patients. Key words: Malassezia, Seborrheic dermatitis, HIV positive, HIV negative.

Girth body dimensions in men and women with seborrheic dermatitis of varying severity

Today in modern medicine the study of human health is reoriented to the individual principle, which is based on the identification and study of constitutionally determined patterns of manifestation of certain diseases. The purpose of the study is to establish and analyze the features of the girth body sizes in men and women with generalized fatty form of seborrheic dermatitis of varying severity. The comprehensive body size of 40 men and 40 young women (25-44 years) with generalized fatty seborrheic dermatitis (mild and severe) was determined. The control group consisted of the girth sizes of practically healthy men (n=82) and women (n=154) of the same age group, which were selected from the database of the research center National Pirogov Memorial Medical University. Statistical processing of body circumference was performed in the licensed package “Statistica 6.0” using non-parametric evaluation methods. As a result of studies in patients with seborrheic dermatitis of varying severity of men, compared with practically healthy men, found only greater values of the girth of the shoulder in a relaxed state and thighs, neck (only mild), shin in the upper part and waist (in both cases only with a severe degree), as well as smaller values of the girth of the shoulder in a tense state; and in patients of varying severity of women – greater values of the girth of the shoulder in a relaxed state, thighs, lower legs, neck, waist and all girths of the chest and both thighs (only severe), as well as smaller values of the girth of the hand (only with mild). In both men and women with seborrheic dermatitis, differences in girth body sizes are more pronounced in people with severe disease. Between men or women with seborrheic dermatitis of varying severity, there are no significant or trends in differences in girth body sizes. In the analysis of the manifestations of sexual dimorphism of the circumferential body size between men and women with seborrheic dermatitis found greater values in men with mild and severe disease of the upper extremities, hands, shin, feet and neck (in most cases more pronounced in representatives with mild severity), as well as only in men with mild severity – greater values of all chest girths. For a more correct understanding of changes in girth body sizes in Ukrainian men or women with seborrheic dermatitis of varying severity, it is necessary to analyze other constitutional parameters of the body.