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Probiotics microbiome

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https://www.readbyqxmd.com/read/28821814/bifidobacterium-pseudocatenulatum-li09-and-bifidobacterium-catenulatum-li10-attenuate-d-galactosamine-induced-liver-injury-by-modifying-the-gut-microbiota
#1
Daiqiong Fang, Ding Shi, Longxian Lv, Silan Gu, Wenrui Wu, Yanfei Chen, Jing Guo, Ang Li, Xinjun Hu, Feifei Guo, Jianzhong Ye, Yating Li, Lanjian Li
The gut microbiota is altered in liver diseases, and several probiotics have been shown to reduce the degree of liver damage. We hypothesized that oral administration of specific Bifidobacterium strains isolated from healthy guts could attenuate liver injury. Five strains were tested in this study. Acute liver injury was induced by D-galactosamine after pretreating Sprague-Dawley rats with the Bifidobacterium strains, and liver function, liver and ileum histology, plasma cytokines, bacterial translocation and the gut microbiome were assessed...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807612/the-role-of-trimethylamine-n-oxide-as-a-mediator-of-cardiovascular-complications-in-chronic-kidney-disease
#2
James A P Tomlinson, David C Wheeler
Patients with chronic kidney disease (CKD) have an enhanced risk of cardiovascular (CV) morbidity and mortality when compared with age- and gender-matched individuals with normal kidney function. Trimethlyamine N-oxide (TMAO) is a gut-derived amine oxide that has been implicated in the causation of CV diseases. Plasma TMAO is cleared by the kidney, and TMAO levels are elevated in CKD. Experimental studies have identified pathogenic mechanisms by which TMAO may contribute to CV disease through dysregulation of lipid metabolism, enhanced macrophage foam cell formation, and platelet dysfunction...
August 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28802306/ilsi-southeast-asia-region-conference-proceedings-the-gut-its-microbes-and-health-relevance-for-asia
#3
Yuan Kun Lee, Patricia Conway, Sven Pettersson, G Balakrish Nair, Ingrid Surono, Yusra Egayanti, Maria Sofia Amarra
BACKGROUND AND OBJECTIVES: The human being is a complex entity, involving interaction between microbes and the human host. Evidence shows that the nutritional value of food is influenced in part by the structure and operations of an individual's gut microbial community, and food in turn shapes the individual's microbiome. A conference was held to promote understanding of the intestinal microbiome and its implications for health and disease, particularly among Asian populations. METHODS AND STUDY DESIGN: Papers describing 1) the intestinal ecosystem in Asian populations, 2) changes in intestinal microbiota through life and its effects, 3) the Asian gut microbiota in disease conditions, 4) indigenous probiotics to maintain a healthy gut microbiota, 5) probiotic regulation in an Asian country, and 6) the results of a panel discussion are included in this report...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28797931/changes-in-the-gut-microbial-communities-following-addition-of-walnuts-to-the-diet
#4
Lauri O Byerley, Derrick Samuelson, Eugene Blanchard, Meng Luo, Brittany N Lorenzen, Shelia Banks, Monica A Ponder, David A Welsh, Christopher M Taylor
Walnuts are rich in omega-3 fatty acids, phytochemicals and antioxidants making them unique compared to other foods. Consuming walnuts has been associated with health benefits including a reduced risk of heart disease and cancer. Dysbiosis of the gut microbiome has been linked to several chronic diseases. One potential mechanism by which walnuts may exert their health benefit is through modifying the gut microbiome. This study identified the changes in the gut microbial communities that occur following the inclusion of walnuts in the diet...
July 9, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28792444/role-of-microbial-modulation-in-management-of-atopic-dermatitis-in-children
#5
REVIEW
Lies Hulshof, Belinda Van't Land, Aline B Sprikkelman, Johan Garssen
The pathophysiology of atopic dermatitis (AD) is multifactorial and is a complex interrelationship between skin barrier, genetic predisposition, immunologic development, skin microbiome, environmental, nutritional, pharmacological, and psychological factors. Several microbial modulations of the intestinal microbiome with pre- and/or probiotics have been used in AD management, with different clinical out-come (both positive, as well as null findings). This review provides an overview of the clinical evidence from trials in children from 2008 to 2017, aiming to evaluate the effect of dietary interventions with pre- and/or pro-biotics for the treatment of AD...
August 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28776643/contributions-of-the-intestinal-microbiome-in-lung-immunity
#6
REVIEW
Jeremy P McAleer, Jay K Kolls
The intestine is a critical site of immune cell development that not only controls intestinal immunity but extra-intestinal immunity as well. Recent findings have highlighted important roles for gut microbiota in shaping lung inflammation. Here, we discuss interactions between the microbiota and immune system including T cells, protective effects of microbiota on lung infections, the role of diet in shaping the composition of gut microbiota and susceptibility to asthma, epidemiologic evidence implicating antibiotic use and microbiota in asthma and clinical trials investigating probiotics as potential treatments for atopy and asthma...
August 4, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28771569/disruption-in-the-cecal-microbiota-of-chickens-challenged-with-clostridium-perfringens-and-other-factors-was-alleviated-by-bacillus-licheniformis-supplementation
#7
Yicen Lin, Shuai Xu, Dong Zeng, Xueqin Ni, Mengjia Zhou, Yan Zeng, Hesong Wang, Yi Zhou, Hui Zhu, Kangcheng Pan, Guangyao Li
Clostridium perfringens can induce necrotic enteritis of chickens, which causes large economic losses every year. Bacillus licheniformis, a probiotic, can inhibit the growth of pathogenic bacteria such as Clostridium perfringens, thereby improving the health status of chickens. However, from a microbial ecology perspective, the mechanisms by which alterations to the gut microbiota improve health remain unknown. In this study, we used Illumina MiSeq sequencing to investigate the cecal microbiota of a negative control group (NC), a C...
2017: PloS One
https://www.readbyqxmd.com/read/28767339/assessing-gut-microbiota-perturbations-during-the-early-phase-of-infectious-diarrhea-in-vietnamese-children
#8
Hao Chung The, Paola Florez de Sessions, Song Jie, Duy Pham Thanh, Corinne N Thompson, Chau Nguyen Ngoc Minh, Collins Wenhan Chu, Tuan-Anh Tran, Nicholas R Thomson, Guy E Thwaites, Maia A Rabaa, Martin Hibberd, Stephen Baker
Diarrheal diseases remain the second most common cause of mortality in young children in developing countries. Efforts have been made to explore the impact of diarrhea on bacterial communities in the human gut, but a thorough understanding has been impeded by inadequate resolution in bacterial identification and the examination of only few etiological agents. Here, by profiling an extended region of the 16S rRNA gene in the fecal microbiome, we aimed to elucidate the nature of gut microbiome perturbations during the early phase of infectious diarrhea caused by various etiological agents in Vietnamese children...
August 2, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28764865/rumen-microbiome-probiotics-and-fermentation-additives
#9
REVIEW
Joshua C McCann, Ahmed A Elolimy, Juan J Loor
Fermentation of a variety of feedstuffs by the ruminal microbiome is the distinctive feature of the ruminant digestive tract. The host derives energy and nutrients from microbiome activity; these organisms are essential to survival. Advances in DNA sequencing and bioinformatics have redefined the rumen microbial community. Current research seeks to connect our understanding of the rumen microbiome with nutritional strategies in ruminant livestock systems and their associated digestive disorders. These efforts align with a growing number of products designed to improve ruminal fermentation to benefit the overall efficiency of ruminant livestock production and health...
July 29, 2017: Veterinary Clinics of North America. Food Animal Practice
https://www.readbyqxmd.com/read/28761936/clostridium-difficile-colonizes-alternative-nutrient-niches-during-infection-across-distinct-murine-gut-microbiomes
#10
Matthew L Jenior, Jhansi L Leslie, Vincent B Young, Patrick D Schloss
Clostridium difficile is the largest single cause of hospital-acquired infection in the United States. A major risk factor for Clostridium difficile infection (CDI) is prior exposure to antibiotics, as they disrupt the gut bacterial community which protects from C. difficile colonization. Multiple antibiotic classes have been associated with CDI susceptibility, many leading to distinct community structures stemming from variation in bacterial targets of action. These community structures present separate metabolic challenges to C...
July 2017: MSystems
https://www.readbyqxmd.com/read/28761060/administration-of-lactobacillus-salivarius-li01-or-pediococcus-pentosaceus-li05-prevents-ccl4-induced-liver-cirrhosis-by-protecting-the-intestinal-barrier-in-rats
#11
Ding Shi, Longxian Lv, Daiqiong Fang, Wenrui Wu, Chenxia Hu, Lichen Xu, Yanfei Chen, Jing Guo, Xinjun Hu, Ang Li, Feifei Guo, Jianzhong Ye, Yating Li, Dewi Andayani, Lanjuan Li
Alterations in the gut microbiome have been reported in liver cirrhosis, and probiotic interventions are considered a potential treatment strategy. This study aimed to evaluate the effects and mechanisms of Lactobacillus salivarius LI01, Pediococcus pentosaceus LI05, Lactobacillus rhamnosus GG, Clostridium butyricum MIYAIRI and Bacillus licheniformis Zhengchangsheng on CCl4-induced cirrhotic rats. Only administration of LI01 or LI05 prevented liver fibrosis and down-regulated the hepatic expression of profibrogenic genes...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28760934/next-generation-probiotics-targeting-clostridium-difficile-through-precursor-directed-antimicrobial-biosynthesis
#12
Jennifer K Spinler, Jennifer Auchtung, Aaron Brown, Prapaporn Boonma, Numan Oezguen, Caná L Ross, Ruth Ann Luna, Jessica Runge, James Versalovic, Alex Peniche, Sara M Dann, Robert A Britton, Anthony Haag, Tor C Savidge
Integration of antibiotic and probiotic therapy has the potential to lessen the public health burden to antimicrobial-associated diseases. Clostridium difficile infection (CDI) represents an important example where rational design of next generation probiotics is being actively pursued to prevent disease recurrence. Because intrinsic resistance to clinically relevant CDI antibiotics (vancomycin, metronidazole, and fidaxomicin) is a desired trait in such probiotic species, we screened several bacteria and identified Lactobacillus reuteri as a promising candidate for adjunct therapy...
July 31, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28760005/evidence-based-selection-of-probiotic-strains-to-promote-astronaut-health-or-alleviate-symptoms-of-illness-on-long-duration-spaceflight-missions
#13
G L Douglas, A A Voorhies
Spaceflight impacts multiple aspects of human physiology, which will require non-invasive countermeasures as mission length and distance from Earth increases and the capability for external medical intervention decreases. Studies on Earth have shown that probiotics have the potential to improve some of the conditions that have manifested during spaceflight, such as gastrointestinal distress, dermatitis, and respiratory infections. The constraints and risks of spaceflight make it imperative that probiotics are carefully selected based on their strain-specific benefits, doses, delivery mechanisms, and relevance to likely crew conditions prior to evaluation in astronauts...
August 1, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28753805/the-urinary-tract-microbiome-in-health-and-disease
#14
REVIEW
Isabel M Aragón, Bernardo Herrera-Imbroda, María I Queipo-Ortuño, Elisabeth Castillo, Julia Sequeira-García Del Moral, Jaime Gómez-Millán, Gozde Yucel, María F Lara
CONTEXT: The urinary tract, previously considered a sterile body niche, has emerged as the host of an array of bacteria in healthy individuals, revolutionizing the urology research field. OBJECTIVE: To review the literature on microbiome implications in the urinary tract and the usefulness of probiotics/prebiotics and diet as treatment for urologic disorders. EVIDENCE ACQUISITION: A systematic review was conducted using PubMed and Medline from inception until July 2016...
November 14, 2016: European Urology Focus
https://www.readbyqxmd.com/read/28750650/quantitative-metagenomics-reveals-unique-gut-microbiome-biomarkers-in-ankylosing-spondylitis
#15
Chengping Wen, Zhijun Zheng, Tiejuan Shao, Lin Liu, Zhijun Xie, Emmanuelle Le Chatelier, Zhixing He, Wendi Zhong, Yongsheng Fan, Linshuang Zhang, Haichang Li, Chunyan Wu, Changfeng Hu, Qian Xu, Jia Zhou, Shunfeng Cai, Dawei Wang, Yun Huang, Maxime Breban, Nan Qin, Stanislav Dusko Ehrlich
BACKGROUND: The assessment and characterization of the gut microbiome has become a focus of research in the area of human autoimmune diseases. Ankylosing spondylitis is an inflammatory autoimmune disease and evidence showed that ankylosing spondylitis may be a microbiome-driven disease. RESULTS: To investigate the relationship between the gut microbiome and ankylosing spondylitis, a quantitative metagenomics study based on deep shotgun sequencing was performed, using gut microbial DNA from 211 Chinese individuals...
July 27, 2017: Genome Biology
https://www.readbyqxmd.com/read/28744273/oral-probiotics-alter-healthy-feline-respiratory-microbiota
#16
Aida I Vientós-Plotts, Aaron C Ericsson, Hansjorg Rindt, Carol R Reinero
Probiotics have been advocated as a novel therapeutic approach to respiratory disease, but knowledge of how oral administration of probiotics influences the respiratory microbiota is needed. Using 16S rRNA amplicon sequencing of bacterial DNA our objective was to determine whether oral probiotics changed the composition of the upper and lower airway, rectal, and blood microbiota. We hypothesized that oral probiotics would modulate the respiratory microbiota in healthy cats, demonstrated by the detection and/or increased relative abundance of the probiotic bacterial species and altered composition of the microbial population in the respiratory tract...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28737021/infection-therapy-the-problem-of-drug-resistance-and-possible-solutions
#17
Harald Brüssow
The rising antibiotic resistance in major bacterial pathogens together with the breakdown of the antibiotic discovery platform creates a critical situation for infection therapy. Recent developments reviving new antibiotic discovery from defining chemical rules for membrane-passing compounds to isolation chips for soil bacteria and exploring the human microbiome for antibiotic-producing bacteria are discussed. The potential of bacteriocins, tailocins, phage lysins, phages, probiotics and commensal blends as alternatives to antibiotics is evaluated...
July 24, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28730551/pseudomonas-fluorescens-r68-assisted-enhancement-in-growth-and-fertilizer-utilization-of-amaranthus-tricolor-l
#18
C Jimtha John, P Jishma, N R Karthika, K S Nidheesh, J G Ray, Jyothis Mathew, E K Radhakrishnan
Plant probiotic potential of rhizosphere microbiome and its role in phytofertilizer mobilization are largely unexplored. In the current study, the rhizobacterium Pseudomonas fluorescens R68 (PFR68) isolated from Western Ghat was analyzed for its growth enhancement effect on the leafy vegetable Amaranthus tricolor (L.). One month of field growth of PFR68 inoculated A. tricolor has found to have enhanced growth parameters such as leaf number (1.57 fold), root number (1.76 fold), shoot length (1.28 fold) and fresh weight (2...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28729860/burn-injury-leads-to-increase-in-relative-abundance-of-opportunistic-pathogens-in-the-rat-gastrointestinal-microbiome
#19
Guangtao Huang, Kedai Sun, Supeng Yin, Bei Jiang, Yu Chen, Yali Gong, Yajie Chen, Zichen Yang, Jing Chen, Zhiqiang Yuan, Yizhi Peng
The gastrointestinal microbiome is crucial in human health. With greater than 10 times the cell count of an individual, the gastrointestinal microbiome provides many benefits to the host. It plays an important role in chronic illnesses and immune diseases and also following burns and trauma. This study aimed to determine whether severe burns affect the gastrointestinal microbiome during the early stages of after burn injury and the extent to which the microbiome is disturbed by such burns. We used a rat burn model to investigate any changes occurring in the microbiome after the burn trauma using 16S rRNA sequencing and downstream α-diversity, β-diversity, and taxonomy analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28727425/database-and-bioinformatics-studies-of-probiotics
#20
Lin Tao, Bohua Wang, Yafen Zhong, Siok Hoon Pow, Xian Zeng, Chu Qin, Peng Zhang, Shangying Chen, Weidong He, Ying Tan, Hongxia Liu, Yuyang Jiang, Weiping Chen, Yu Zong Chen
Probiotics have been widely explored for health benefits, animal cares, and agricultural applications. Recent advances in microbiome, microbiota, and microbial dark matter research have fueled greater interests in and paved ways for the study of the mechanisms of probiotics and the discovery of new probiotics from uncharacterized microbial sources. A probiotics database named PROBIO was developed to facilitate these efforts and the need for the information on the known probiotics, which provides the comprehensive information about the probiotic functions of 448 marketed, 167 clinical trial/field trial, and 382 research probiotics for use or being studied for use in humans, animals, and plants...
August 22, 2017: Journal of Agricultural and Food Chemistry
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