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https://www.readbyqxmd.com/read/28418589/a-distinct-cutaneous-microbiota-pofile-in-autoimmune-bullous-disease-patients
#1
Mor Miodovnik, Axel Künstner, Ewan A Langan, Detlef Zillikens, Regine Gläser, Eli Sprecher, John F Baines, Enno Schmidt, Saleh M Ibrahim
Bullous Pemphigoid (BP) is the most common autoimmune blistering disease in Europe. As both the incidence of the disease and the relative proportion of the elderly population continue to rise, it represents a significant medical burden. Whereas some progress has been achieved in defining genetic risk factors for autoimmune blistering diseases, no environmental agent has been conclusively identified. Emerging evidence suggests that host immunity may influence the skin microbiota while the latter modulates cutaneous immunity...
April 18, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28418094/the-skin-microbiome-of-the-common-thresher-shark-alopias-vulpinus-has-low-taxonomic-and-potential-metabolic-%C3%AE-diversity
#2
Michael P Doane, John Matthew Haggerty, Dovi Kacev, Bhavya Papudeshi, Elizabeth A Dinsdale
The health of sharks is linked with emergent properties of its microbiome. Most marine organisms have mucus overlying the skin, but shark have dermal denticles that protrude above the mucus. We characterized the microbiome from the skin of the common thresher shark (Alopias vulpinus) to investigate the structure and composition of the skin microbiome. An average of 618,812 reads per metagenomic library contained open reading frames (80.9% ± S.D. 0.44%), and 7.6 to 12.8% matched known protein sequences...
April 18, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28411842/the-molecular-revolution-in-cutaneous-biology-investigating-the-skin%C3%A2-microbiome
#3
REVIEW
Heidi H Kong, Julia A Segre
Building upon the knowledge garnered from investigations utilizing traditional culturing methods, advances in sequencing technologies have catalyzed a revolution in studying human-associated microbes: bacteria, fungi and viruses. Skin microbiome research in healthy individuals and patients with dermatologic disorders has provided insights into the complexity and biogeography of human skin microbes. The continual developments in sequencing and analyses will provide increasingly sophisticated tools to interrogate human-associated microbes, ultimately to improve our understanding of health and disease...
May 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28395897/human-skin-is-the-largest-epithelial-surface-for%C3%A2-interaction%C3%A2-with-microbes
#4
Richard L Gallo
Human skin contains an abundant and diverse population of microbial organisms. Many of these microbes inhabit follicular structures of the skin. Furthermore, numerous studies have shown that the interaction of some members of the skin microbiome with host cells will result in changes in cell function. However, estimates of the potential for the microbiome to influence human health through skin have ignored the inner follicular surface, and therefore vastly underestimated the potential of the skin microbiome to have a systemic effect on the human body...
April 8, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28391505/bacterial-communities-on-facial-skin-of-teenage-and-elderly-thai-females
#5
Naraporn Somboonna, Alisa Wilantho, Chutika Srisuttiyakorn, Anunchai Assawamakin, Sissades Tongsima
The Human Microbiome Project was first established to understand the roles of human-associated microbes to human health and disease. This study presents preliminary findings of Thai female facial skin microbiome using three pooled samples from groups of skin microbiome profiles, namely (1) healthy and (2) acne-prone young adults (teenage.hea and teenage.acn) and (3) healthy elderly adults (elderly.hea) based on standard dermatological criteria. These samples were sequenced using 454-pyrosequencing targeting 16S rRNA (V3-V4 regions)...
April 8, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28390799/skin-microbiome-and-mast-cells
#6
REVIEW
Satomi Igawa, Anna Di Nardo
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March 23, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28387770/amphibian-skin-microbiota-exhibits-temporal-variation-in-community-structure-but-stability-of-predicted-bd-inhibitory-function
#7
Molly C Bletz, R G Bina Perl, Bianca Tc Bobowski, Laura M Japke, Christoph C Tebbe, Anja B Dohrmann, Sabin Bhuju, Robert Geffers, Michael Jarek, Miguel Vences
Host-associated microbiomes are increasingly recognized to contribute to host disease resistance; the temporal dynamics of their community structure and function, however, are poorly understood. We investigated the cutaneous bacterial communities of three newt species, Ichthyosaura alpestris, Lissotriton vulgaris and Triturus cristatus, at approximately weekly intervals for 3 months using 16S ribosomal RNA amplicon sequencing. We hypothesized cutaneous microbiota would vary across time, and that such variation would be linked to changes in predicted fungal-inhibitory function...
April 7, 2017: ISME Journal
https://www.readbyqxmd.com/read/28384336/filthy-lucre-a-metagenomic-pilot-study-of-microbes-found-on-circulating-currency-in-new-york-city
#8
Julia M Maritz, Steven A Sullivan, Robert J Prill, Emre Aksoy, Paul Scheid, Jane M Carlton
BACKGROUND: Paper currency by its very nature is frequently transferred from one person to another and represents an important medium for human contact with-and potential exchange of-microbes. In this pilot study, we swabbed circulating $1 bills obtained from a New York City bank in February (Winter) and June (Summer) 2013 and used shotgun metagenomic sequencing to profile the communities found on their surface. Using basic culture conditions, we also tested whether viable microbes could be recovered from bills...
2017: PloS One
https://www.readbyqxmd.com/read/28379372/the-microbiological-landscape-of-anaerobic-infections-in-hidradenitis-suppurativa-a-prospective-metagenomic-study
#9
Hélène Guet-Revillet, Jean-Philippe Jais, Marie-Noelle Ungeheuer, Hélène Coignard-Biehler, Sabine Duchatelet, Maïa Delage, Thi Lam, Alain Hovnanian, Olivier Lortholary, Xavier Nassif, Aude Nassif, Olivier Join-Lambert
Background.: Hidradenitis suppurativa (HS) is a frequent and severe disease of the skin, characterized by recurrent or chronic skinfolds suppurative lesions with a high impact on quality of life. Although considered inflammatory, antimicrobial treatments can improve or lead to clinical remission of HS, suggesting triggering microbial factors. Indeed, mixed anaerobic microbiota are associated with a majority of HS lesions. The aim of this study was to characterize the landscape of anaerobic infections in HS using high throughput sequencing...
April 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28378121/toxification-of-polycyclic-aromatic-hydrocarbons-by-commensal-bacteria-from-human-skin
#10
Juliane Sowada, Lisa Lemoine, Karsten Schön, Christoph Hutzler, Andreas Luch, Tewes Tralau
The ubiquitous occurrence of polycyclic aromatic hydrocarbons (PAHs) leads to constant human exposure at low levels. Toxicologically relevant are especially the high-molecular weight substances due to their (pro-)carcinogenic potential. Following ingestion or uptake, the eukaryotic phase I metabolism often activates these substances to become potent DNA binders, and unsurprisingly metabolism and DNA-adduct formation of model substances such as benzo[a]pyrene (B[a]P) are well studied. However, apart from being subjected to eukaryotic transformations PAHs are also carbon and energy sources for the myriads of commensal microbes inhabiting man's every surface...
April 4, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28375932/outstanding-animal-studies-in-allergy-ii-from-atopic-barrier-and-microbiome-to-allergen-specific-immunotherapy
#11
Erika Jensen-Jarolim, Isabella Pali-Schöll, Franziska Roth-Walter
PURPOSE OF REVIEW: Animal studies published within the past 18 months were assessed, focusing on innate and specific immunomodulation, providing knowledge of high translational relevance for human atopic and allergic diseases. RECENT FINDINGS: Allergic companion animals represent alternative models, but most studies were done in mice. Atopic dermatitis mouse models were refined by the utilization of cytokines like IL-23 and relevant skin allergens or enzymes. A novel IL-6 reporter mouse allows biomonitoring of inflammation...
June 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28369684/gut-microbiome-standardization-in-control-and-experimental-mice
#12
Kathy D McCoy, Markus B Geuking, Francesca Ronchi
Mouse models are used extensively to study human health and to investigate the mechanisms underlying human disease. In the past, most animal studies were performed without taking into consideration the impact of the microbiota. However, the microbiota that colonizes all body surfaces, including the gastrointestinal tract, respiratory tract, genitourinary tract, and skin, heavily impacts nearly every aspect of host physiology. When performing studies utilizing mouse models it is critical to understand that the microbiome is heavily impacted by environmental factors, including (but not limited to) food, bedding, caging, and temperature...
April 3, 2017: Current Protocols in Immunology
https://www.readbyqxmd.com/read/28368977/cutaneous-burn-injury-promotes-shifts-in-the-bacterial-microbiome-in-autologous-donor-skin-implications-for-skin-grafting-outcomes
#13
Jennifer K Plichta, Xiang Gao, Huaiying Lin, Qunfeng Dong, Evelyn Toh, David E Nelson, Richard L Gamelli, Elizabeth A Grice, Katherine A Radek
INTRODUCTION: The cutaneous microbiome maintains skin barrier function, regulates inflammation, and stimulates wound healing responses. Burn injury promotes an excessive activation of the cutaneous and systemic immune response directed against commensal and invading pathogens. Skin grafting is the primary method of reconstructing full-thickness burns, and wound infection continues to be a significant complication. METHODS: In this study, the cutaneous bacterial microbiome was evaluated and subsequently compared to patient outcomes...
March 31, 2017: Shock
https://www.readbyqxmd.com/read/28366290/microbiome-tools-for-forensic-science
#14
REVIEW
Jessica L Metcalf, Zhenjiang Z Xu, Amina Bouslimani, Pieter Dorrestein, David O Carter, Rob Knight
Microbes are present at every crime scene and have been used as physical evidence for over a century. Advances in DNA sequencing and computational approaches have led to recent breakthroughs in the use of microbiome approaches for forensic science, particularly in the areas of estimating postmortem intervals (PMIs), locating clandestine graves, and obtaining soil and skin trace evidence. Low-cost, high-throughput technologies allow us to accumulate molecular data quickly and to apply sophisticated machine-learning algorithms, building generalizable predictive models that will be useful in the criminal justice system...
March 30, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/28361440/acid-suppressive-therapy-and-risk-of-infections-pros-and-cons
#15
REVIEW
Leon Fisher, Alexander Fisher
This narrative review summarises the benefits, risks and appropriate use of acid-suppressing drugs (ASDs), proton pump inhibitors and histamine-2 receptor antagonists, advocating a rationale balanced and individualised approach aimed to minimise any serious adverse consequences. It focuses on current controversies on the potential of ASDs to contribute to infections-bacterial, parasitic, fungal, protozoan and viral, particularly in the elderly, comprehensively and critically discusses the growing body of observational literature linking ASD use to a variety of enteric, respiratory, skin and systemic infectious diseases and complications (Clostridium difficile diarrhoea, pneumonia, spontaneous bacterial peritonitis, septicaemia and other)...
March 30, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28355943/atopic-eczema
#16
Stephen M Bauer
Atopic eczema (AE), or atopic dermatitis (AD), is a common inflammatory skin disease with a disrupted epidermal barrier and an allergic immune response. AD/AE is prominently characterized by a symptomatic itch and transient skin lesions. Infants compose a significant percentage affected. Two models have been proposed to explain AD/AE skin pathology: the gut microbiome-focused inside-outside model and the outside-inside model concentrating on the disrupted skin barrier/skin microbiome. Gene disruptions contributing to epidermal structure, as well as those in immune system genes, are implicated...
January 1, 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28351915/comparison-of-standard-culture-based-method-to-culture-independent-method-for-evaluation-of-hygiene-effects-on-the-hand-microbiome
#17
C Zapka, J Leff, J Henley, J Tittl, E De Nardo, M Butler, R Griggs, N Fierer, S Edmonds-Wilson
Hands play a critical role in the transmission of microbiota on one's own body, between individuals, and on environmental surfaces. Effectively measuring the composition of the hand microbiome is important to hand hygiene science, which has implications for human health. Hand hygiene products are evaluated using standard culture-based methods, but standard test methods for culture-independent microbiome characterization are lacking. We sampled the hands of 50 participants using swab-based and glove-based methods prior to and following four hand hygiene treatments (using a nonantimicrobial hand wash, alcohol-based hand sanitizer [ABHS], a 70% ethanol solution, or tap water)...
March 28, 2017: MBio
https://www.readbyqxmd.com/read/28326070/antimicrobial-protection-of-marsupial-pouch-young
#18
REVIEW
Yuanyuan Cheng, Katherine Belov
Marsupials diverged from eutherian mammals about 148 million years ago and represent a unique lineage of mammals with distinctive morphological and reproductive characteristics. Marsupials have significantly shorter gestation periods than eutherians. Pregnancy typically ranges from 15 to 35 days, with young being born at a very early developmental stage and lacking differentiated lymphoid tissues and mature effector cells. Recent microbiome studies of the marsupial pouch revealed that marsupial young can face intense microbial challenges after birth, as the pouch contains a broad range of Gram-positive and Gram-negative bacteria...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28321459/-the-microbiome-and-autoimmunity
#19
T Schröder, S Ibrahim
An abundant and diverse set of commensal microbial communities covers the body's surfaces, collectively so-called microbiome. It has a functional impact on various immune processes and modulates many health-related processes, including autoimmunity. An active site of microorganism-host interplay is the intestinal mucosa. Growing evidence has helped us to learn how a specific microbiota composition and its functionality determine the intestinal barrier function and, furthermore, modulate pro-inflammatory and anti-inflammatory immune mechanisms in remote organs...
March 20, 2017: Der Internist
https://www.readbyqxmd.com/read/28318782/role-of-the-microbiome-in-swine-respiratory-disease
#20
REVIEW
Megan C Niederwerder
Microbiome is a term used to describe the community of microorganisms that live on the skin and mucosal surfaces of animals. The gastrointestinal microbiome is essential for proper nutrition and immunity. How the gastrointestinal microbiome impacts primary respiratory or systemic infections is an emerging area of study. Porcine reproductive and respiratory syndrome (PRRS) is caused by a systemic virus infection with primary lung pathology and continues to be the most costly disease of swine worldwide. Recent studies have demonstrated that improved outcome after experimental infection with PRRS virus and porcine circovirus type 2 (PCV2) is associated with increased fecal microbiome diversity and the presence of non-pathogenic Escherichia coli...
March 2, 2017: Veterinary Microbiology
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