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Interaction between tick and host microbiotas: a four-step waltz.

Tick-borne diseases represent a growing public health concern worldwide, yet the microbial factors that govern pathogen transmission remain incompletely understood. Over the past decade, high-throughput metagenomics and functional studies have revealed that two distinct microbial communities-the vertebrate host's skin microbiota and the tick's own microbiome-act synergistically as key modulators of pathogen acquisition, persistence within the vector, and successful transmission to the vertebrate host. At the feeding site, the skin microbiota orchestrates local cutaneous immunity, influences in

Efficacy of Probiotic Supplements and Topical Applications in the Treatment of Acne: A Scoping Review of Current Results.

Acne vulgaris is a prevalent dermatological condition characterized by comedones, papules, and pustules, with significant physical and psychological implications. Conventional treatments for this condition, including antibiotics and retinoids, face challenges, such as side effects and antibiotic resistance, necessitating alternative treatments. Recent studies show the potential of probiotics to modulate skin microbiome and alleviate acne symptoms. Therefore, this study aimed to consolidate evidence from randomized controlled trials (RCTs) and clinical investigations, evaluating the efficacy of…

Effect of 30% Supramolecular Salicylic Acid Peel on Skin Microbiota and Inflammation in Patients with Moderate-to-Severe Acne Vulgaris.

INTRODUCTION: Thirty-percent supramolecular salicylic acid (SSA), a modified salicylic acid preparation, is a safe and effective treatment f … ct in patients with moderate-to-severe AV by improving the skin microenvironment and modulating the skin microbiome, thus reducing local inflammation.

Metabolomic signatures associated with probiotic use in atopic dermatitis: An exploratory study.

Atopic dermatitis (AD) is a chronic inflammatory skin disorder modulated by complex interactions between immune dysregulation and compromised skin-barrier integrity, in which the gut microbiome may play a role in the natural course of the disease. Therefore, by influencing the composition of the gut microbiome, one of the effective therapeutic options for AD treatment may include probiotics. To extend our knowledge of probiotics and how gut microbiome may affect disease evolution, this exploratory study assessed the systemic effects of a 90-day probiotic supplementation in AD patients, integra

Causal Relationships Between Oral Microbiota and Inflammatory Skin Diseases.

INTRODUCTION AND AIMS: The oral microbiome has been increasingly linked to systemic inflammation and immune dysregulation, but whether specific oral bacteria causally contribute to inflammatory skin diseases remains unclear due to confounding and reverse causation. This study aimed to assess the causal effects of 43 oral microbiota taxa on the risk of five inflammatory skin diseases using a Mendelian randomization (MR) approach. METHODS: We performed a two-sample MR analysis using genetic instruments for oral microbiota derived from publicly available genome-wide association studies and outco

Atopic dermatitis and the gut-skin axis: a review from dysbiosis to novel targeted therapeutic strategies.

Atopic dermatitis (AD) is a common, chronic, relapsing, inflammatory skin disorder with a complex pathogenesis involving genetic, immune, and environmental factors. Recent advances in the research on the gut-skin axis (GSA) have shed new light on the pathophysiology of AD, highlighting the critical role of gut microbiota dysbiosis in immune regulation and inflammatory responses. This review summarizes gut and skin microbial dysbiosis in AD and its impact on immune homeostasis, elaborates on molecular/cellular mechanisms by which gut-skin axis dysfunction drives AD inflammation, and focuses on

Assessing and Interpreting the Within-Body Biogeography of Human Microbiome Diversity.

A human body hosts a relatively independent microbiome including five major regional biomes (i.e., airway, oral, gut, skin, and urogenital). Each of them may possess different regional characteristics with important implications to our health and diseases (i.e., so-termed microbiome associated diseases). Nevertheless, these regional microbiomes are connected with each other through diffusions and migrations. Here, we investigate the within-body (intra-individual) distribution feature of microbiome diversity via diversity area relationship (DAR) modeling, which, to the best of our knowledge, ha

Commensal skin bacteria interact with the innate immune system to promote tail regeneration in Xenopus laevis tadpoles.

BACKGROUND: Tadpoles of the clawed frog Xenopus laevis can regenerate their tails following partial amputation, replacing the missing spinal cord, muscles, and fin. However, for a brief period of development this response becomes unstable, leading to a proportion of tadpoles that undergo wound healing rather than regenerative programme. Inspired by a growing number of links between the microbiome and human inflammatory disease, we asked how the tadpole skin microbiome and innate immunity influence the regeneration of a complex appendage. We previously showed that tadpoles raised in antibiotics…

A Possible Role of Mycobiome in the Pathophysiology of Acne: Structured Narrative Review and Perspectives.

Acne vulgaris pathogenesis involves complex interactions between sebum hypersecretion, follicular hyperkeratinisation, microbial colonisation and inflammatory cascades. While the bacterial microbiome has been extensively studied, the role of the skin mycobiome, particularly lipophilic Malassezia species, remains less clearly defined in acne-prone sites. To evaluate evidence for skin mycobiome involvement in acne pathogenesis, a structured narrative review was conducted in PubMed/MEDLINE and PMC, synthesising findings from 14 cross-sectional studies involving 1650 participants from diverse geog

Cockroach Microbiome Disrupts Indoor Environmental Microbial Ecology with Potential Public Health Implications.

Cockroaches pose a significant global public health concern. However, besides the well-recognized cockroach-induced allergy, the potential impact of the cockroach microbiome on human health through various means is not yet fully elucidated. This study aimed to clarify the health impacts of cockroaches by investigating the microbial interactions among cockroaches, the indoor environment, and humans. We simultaneously collected cockroach, indoor environment (indoor air and floor dust), and human (exhaled breath condensate and skin) samples from residential areas in five cities representing disti

Сложные связи между человеком и бактериями: связи между множественным склерозом и микробиомом человека.

Множественный склероз (MS) — хроническое иммунопосредованное заболевание центральной нервной системы, патогенез которого связан со сложным взаимодействием между генетической предрасположенностью, экологическими факторами и дисрегуляцией иммунной реакции. Этот обзор критически обобщает имеющиеся данные исследований, демонстрирующих значительные изменения в составе микробиома человека у отдельных лиц с MS. В ходе этой работы обобщается нынешнее состояние знаний о составе, разнообразии и дисбиозе кишечного микробиома в MS, при этом подчеркивается неоднородность наблюдаемых микробных изменений в з

Совпадение в аннотации оригинала
Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system, the pathogenesis of which involves complex inter … ogical across studies. Data from other microbial niches are also considered, including the oral and skin microbiome, as well as mucosal-associated intestinal microbiota, which may contribute to local and peripheral modulation of immune responses. The gut mycobiome is presented as a complementary component whose potential immunological relevance is currently under …

The microbiome in dermatology.

The skin supports a delicate ecosystem of microbial elements. Although the skin typically acts as a barrier, these microbes interact with the internal body environment and imbalances from the "Работает" state that have been linked to several dermatologic diseases. Understanding the changes in microbial flora in disease states allows for the potential to treat by restoring equilibrium. With the rising popularity of holistic and natural consumerism, prebiotics, probiotics, symbiotic, and other therapies are under study to find alternative treatments to these skin disorders through manipulation or

The effects of long-pulsed alexandrite laser therapy on facial redness and skin microbiota compositions in rosacea: A prospective, multicentre, single-arm clinical trial.

BACKGROUND: Rosacea is a chronic skin disorder characterised by abnormal neurovasculature and inflammation in the central region of the face … 0 ± 94.5 at the final visit (p < .05). The DLQI and SSQ showed significant improvement of symptoms. Skin microbiome diversity and relative abundance were altered significantly, particularly in the genera Clostridium, Lawsonella, Bacteroides, and Lactobacillus. CONCLUSIONS: LPAL therapy alone showed favourable efficacy for the treatment of facial redness in rosac …

The skin microbiota of preterm infants and impact of diaper change frequency.

OBJECTIVE: To evaluate the impact of diaper change frequency, clinical characteristics, and skin health metrics on development of the skin microbiota in preterm infants. DESIGN: A randomized controlled parallel design was used. METHODS: Medically stable preterm infants born <33 weeks' gestation were randomized to receive diaper changes at a frequency of every 3-hours or every 6-hours. Skin swabs were collected longitudinally from the diapered skin (buttocks) and chest. Skin pH and transepidermal water loss were measured with each sample collection. Stool samples were collected from the diape

A distinct cutaneous microbiota profile in autoimmune bullous disease patients.

Bullous pemphigoid (BP) is the most common autoimmune blistering disease in Europe. As both the incidence of the disease and the relative pr … mmune bullous disease has yet to be studied in humans. Here, we aim to characterise and compare the skin microbiome of patients with BP and healthy, age-matched controls at numerous body sites. Similar to what has been shown in healthy controls, the composition of skin microbiota in patients with BP appears to be very divergent and site specific. Microbial phylum …

Characterization of a live Cutibacterium acnes subspecies defendens strain XYCM42 and clinical assessment as a topical regimen for general skin health and cosmesis.

BACKGROUND: When formulating topical products to treat skin diseases and addressing general skin health and cosmesis, most of the focus has traditionally been placed on how any given ingredient may impact the structure, function, and health of human skin elements. However, recent research is beginning to highlight the importance of the skin microbiome in relation to certain skin conditions and general cosmesis. Cutibacterium acnes is one of the most prolific skin-specific bacterial species. Research has shown that the species is divided into subspecies, some of which are thought to be benefici…

Insights into the gut microbiome of vitiligo patients from India.

BACKGROUND: Vitiligo is an autoimmune disease characterized by loss of pigmentation in the skin. It affects 0.4 to 2% of the global population, but the factors that trigger autoimmunity remain elusive. Previous work on several immune-mediated dermatological disorders has illuminated the substantial roles of the gut microbiome in disease pathogenesis. Here, we examined the gut microbiome composition in a cohort of vitiligo patients and healthy controls from India, including patients with a family history of the disease. RESULTS: Our results show significant alterations in the gut microbiome of

Rosacea pathogenesis, common triggers, and dietary role: The cause, the trigger, and the positive effects of different foods.

Rosacea is a common chronic inflammatory cutaneous disorder, primarily manifesting on the cheeks, nose, chin, and forehead with a classic relapsing-remitting course that affects mostly fair skin types (Fitzpatrick I and II). The pathogenesis remains unclear, but the complex interplay between environmental and genetic factors may augment the innate immune response and neurovascular dysregulation. Different nutrients may play a role in the pathogenesis of rosacea. Many dietary triggers, including hot beverages, alcohol, spicy foods, caffeine, vanilla, cinnamon, niacin, marinated meats, and dairy

Eradication of skin microbiota restores cytokine production and release in polymorphic light eruption.

Polymorphic light eruption (PLE) has been mechanistically linked to cytokine abnormalities. Emerging preclinical evidence posits the skin microbiome as a critical modulator of ultraviolet (UV)-induced cytokine expression, thereby influencing subsequent immune responses. This intricate relationship remains underexplored in the context of PLE. Hence, we investigated the differential responses between disinfected and non-disinfected skin following both single and repetitive exposures to solar-simulated UV radiation in patients with PLE. An experimental, half-body pilot study was conducted involvi…

The Role of Dermocosmetics in Acne Management: Implications for Clinical Practice in Brazil.

Acne is a prevalent skin condition worldwide, affecting diverse populations, including Brazil. Although acne guidelines are well established for topical and/or systemic medications, recommendations regarding dermocosmetics, which have become increasingly important in acne management, remain limited. This review examines the role of dermocosmetics within acne treatment protocols and provides practical guidance for their integration into skincare routines alongside conventional therapies. Six dermatology experts conducted structured PubMed literature searches (2012-2024) and discussed the findin