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microbiome review

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https://www.readbyqxmd.com/read/28625867/understanding-the-holobiont-how-microbial-metabolites-affect-human-health-and-shape-the-immune-system
#1
REVIEW
Thomas Siegmund Postler, Sankar Ghosh
The human gastrointestinal tract is populated by a diverse, highly mutualistic microbial flora, which is known as the microbiome. Disruptions to the microbiome have been shown to be associated with severe pathologies of the host, including metabolic disease, cancer, and inflammatory bowel disease. Mood and behavior are also susceptible to alterations in the gut microbiota. A particularly striking example of the symbiotic effects of the microbiome is the immune system, whose cells depend critically on a diverse array of microbial metabolites for normal development and behavior...
June 14, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28625828/precision-monitoring-of-immunotherapies-in-solid-organ-and-hematopoietic-stem-cell-transplantation
#2
Rose Diloreto, Kiran Khush, Iwijn De Vlaminck
Pharmacological immunotherapies are a key component of post-transplant therapy in solid-organ and hematopoietic stem cell transplantation. In current clinical practice, immunotherapies largely follow a one-size fits all approach, leaving a large portion of transplant recipients either over- or under-immunosuppressed, and consequently at risk of infections or immune-mediated complications. Our goal here is to review recent and rapid advances in precision and genomic medicine approaches to monitoring of post-transplant immunotherapies...
June 15, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28625077/microbiome-and-microbial-biofilm-profiles-of-peri-implantitis-a-systematic-review
#3
Gloria Inés Lafaurie, María Alejandra Sabogal, Diana Marcela Castillo, María Victoria Rincón, Luz Amparo Gómez, Yamil Augusto Lesmes, Leandro Chambrone
BACKGROUND: This systematic review assesses the microbiological profiles of peri-implantitis, periodontitis and healthy implants based on studies that evaluated microbial biofilms and entire microbiomes to establish their similarities and differences. METHODS: The Medical Literature Analysis and Retrieval System Online, via PubMed, EMBASE (Excerpta Medica Database) and Cochrane Central Register of Controlled Trials (CENTRAL) were searched without language restrictions through July 30, 2016...
June 19, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28624847/the-microbiome-gut-brain-axis-implications-for-schizophrenia-and-antipsychotic-induced-weight-gain
#4
REVIEW
S Kanji, T M Fonseka, V S Marshe, V Sriretnakumar, M K Hahn, D J Müller
With the emergence of knowledge implicating the human gut microbiome in the development and regulation of several physiological systems, evidence has accumulated to suggest a role for the gut microbiome in psychiatric conditions and drug response. A complex relationship between the enteric nervous system, the gut microbiota and the central nervous system has been described which allows for the microbiota to influence and respond to a variety of behaviors and psychiatric conditions. Additionally, the use of pharmaceuticals may interact with and alter the microbiota to potentially contribute to adverse effects of the drug...
June 17, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28622659/understanding-and-exploiting-plant-beneficial-microbes
#5
REVIEW
Omri M Finkel, Gabriel Castrillo, Sur Herrera Paredes, Isai Salas González, Jeffery L Dangl
After a century of incremental research, technological advances, coupled with a need for sustainable crop yield increases, have reinvigorated the study of beneficial plant-microbe interactions with attention focused on how microbiomes alter plant phenotypes. We review recent advances in plant microbiome research, and describe potential applications for increasing crop productivity. The phylogenetic diversity of plant microbiomes is increasingly well characterized, and their functional diversity is becoming more accessible...
June 13, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28621726/microbiota-and-probiotics-in-health-and-hiv-infection
#6
REVIEW
Chiara D'Angelo, Marcella Reale, Erica Costantini
Microbiota play a key role in various body functions, as well as in physiological, metabolic, and immunological processes, through different mechanisms such as the regulation of the development and/or functions of different types of immune cells in the intestines. Evidence indicates that alteration in the gut microbiota can influence infectious and non-infectious diseases. Bacteria that reside on the mucosal surface or within the mucus layer interact with the host immune system, thus, a healthy gut microbiota is essential for the development of mucosal immunity...
June 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28620867/gut-microbiome-and-bone-to-build-destroy-or-both
#7
REVIEW
Jing Yan, Julia F Charles
PURPOSE OF REVIEW: The gut microbiota can be considered a hidden organ that plays essential roles in host homeostasis. Exploration of the effects of microbiota on bone has just begun. Complimentary studies using germ-free mice, antibiotic, and probiotic treatments reveal a complicated relationship between microbiota and bone. Here, we review recent reports addressing the effect of gut microbiota on bone health, discuss potential reasons for discrepant findings, and explore potential mechanisms for these effects...
June 15, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28618973/from-clinical-uncertainties-to-precision-medicine-the-emerging-role-of-the-gut-barrier-and-microbiome-in-small-bowel-functional-diseases
#8
Wojciech Marlicz, Diana Yung, Karolina Skonieczna-Żydecka, Igor Loniewski, Saskia van Hemert, Beata Loniewska, Anastasios Koulaouzidis
Over the last decade, remarkable progress has been made in the understanding of disease pathophysiology. Many new theories expound on the importance of emerging factors such as microbiome influences, genomics/omics, stem cells, innate intestinal immunity or mucosal barrier complexities. This has introduced a further dimension of uncertainty into clinical decision-making, but equally, may shed some light on less well-understood and difficult to manage conditions. Areas covered: Comprehensive review of the literature on gut barrier and microbiome relevant to small bowel pathology...
June 16, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28616365/streptococcus-pneumoniae-otitis-media-pathogenesis-and-how-it-informs-our-understanding-of-vaccine-strategies
#9
REVIEW
Caroline Bergenfelz, Anders P Hakansson
PURPOSE OF REVIEW: This study aimed to review the literature regarding the mechanisms of transition from asymptomatic colonization to induction of otitis media and how the insight into the pathogenesis of otitis media has the potential to help design future otitis media-directed vaccines. RECENT FINDINGS: Respiratory viruses have long been shown to predispose individuals to bacterial respiratory infections, such as otitis media. Recent information suggests that Streptococcus pneumoniae, which colonize the nasopharynx asymptomatically, can sense potentially "threatening" changes in the nasopharyngeal environment caused by virus infection by upregulating specific sets of genes involved in biofilm release, dissemination from the nasopharynx to other sites, and protection against the host immune system...
2017: Current Otorhinolaryngology Reports
https://www.readbyqxmd.com/read/28613252/are-the-gut-bacteria-telling-us-to-eat-or-not-to-eat-reviewing-the-role-of-gut-microbiota-in-the-etiology-disease-progression-and-treatment-of-eating-disorders
#10
REVIEW
Yan Y Lam, Sarah Maguire, Talia Palacios, Ian D Caterson
Traditionally recognized as mental illnesses, eating disorders are increasingly appreciated to be biologically-driven. There is a growing body of literature that implicates a role of the gut microbiota in the etiology and progression of these conditions. Gut bacteria may act on the gut-brain axis to alter appetite control and brain function as part of the genesis of eating disorders. As the illnesses progress, extreme feeding patterns and psychological stress potentially feed back to the gut ecosystem that can further compromise physiological, cognitive, and social functioning...
June 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28611768/innate-immunity-and-breast-milk
#11
REVIEW
Nicole Theresa Cacho, Robert M Lawrence
Human milk is a dynamic source of nutrients and bioactive factors; unique in providing for the human infant's optimal growth and development. The growing infant's immune system has a number of developmental immune deficiencies placing the infant at increased risk of infection. This review focuses on how human milk directly contributes to the infant's innate immunity. Remarkable new findings clarify the multifunctional nature of human milk bioactive components. New research techniques have expanded our understanding of the potential for human milk's effect on the infant that will never be possible with milk formulas...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28609586/targeted-antimicrobial-therapy-in-the-microbiome-era
#12
REVIEW
Victoria N Stone, Ping Xu
Even though the oral microbiome is one of the most complex sites on the body it is an excellent model for narrow-spectrum antimicrobial therapy. Current research indicates disruption of the microbiome leads to a dysbiotic environment allowing for the overgrowth of pathogenic species and the onset of oral diseases. The gram-negative colonizer, Porphyromonas gingivalis has long been considered a key player in the initiation of periodontitis and Streptococcus mutans has been linked to dental caries. With antibiotic research still on the decline, new strategies are greatly needed to combat infectious diseases...
June 13, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28605403/power-and-sample-size-calculations-for-high-throughput-sequencing-based-experiments
#13
Chung-I Li, David C Samuels, Ying-Yong Zhao, Yu Shyr, Yan Guo
Power/sample size (power) analysis estimates the likelihood of successfully finding the statistical significance in a data set. There has been a growing recognition of the importance of power analysis in the proper design of experiments. Power analysis is complex, yet necessary for the success of large studies. It is important to design a study that produces statistically accurate and reliable results. Power computation methods have been well established for both microarray-based gene expression studies and genotyping microarray-based genome-wide association studies...
June 9, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28602746/role-of-oral-and-gut-microbiome-in-nitric-oxide-mediated-colon-motility
#14
REVIEW
Miriam Y Walker, Pratap S, Janet H Southerland, C Farmer-Dixon, L Kesavalu, P Gangula
Periodontal disease (PD), a severe form of gum disease, is among the most prevalent chronic infection in humans and is associated with complex microbial synergistic dysbiosis in the subgingival cavity. The immune system of the body interacts with the microbes as the plaque extends and propagates below the gingival sulcus. Once bacteria reach the gingival sulcus, it can enter the blood stream and affect various areas of the human body. The polymicrobial nature of periodontal disease, if left untreated, promotes chronic inflammation, not only within the oral cavity, but also throughout the human body...
June 7, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28602713/interplay-between-viruses-and-bacterial-microbiota-in-cancer-development
#15
REVIEW
Dariia Vyshenska, Khiem C Lam, Natalia Shulzhenko, Andrey Morgun
During the last few decades we have become used to the idea that viruses can cause tumors. It is much less thought of and discussed, however, that most people infected with oncoviruses will never develop cancer. Therefore, the genetic and environmental factors that tips the scales from clearance of viral infection to development of cancer is currently an area of active investigation. Microbiota has recently emerged as a potentially critical factor that would affect this balance by increasing or decreasing the ability of viral infection to promote carcinogenesis...
June 8, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28602676/interactions-between-gut-bacteria-and-bile-in-health-and-disease
#16
REVIEW
Sarah L Long, Cormac G M Gahan, Susan A Joyce
Bile acids are synthesized from cholesterol in the liver and released into the intestine to aid the digestion of dietary lipids. The host enzymes that contribute to bile acid synthesis in the liver and the regulatory pathways that influence the composition of the total bile acid pool in the host have been well established. In addition, the gut microbiota provides unique contributions to the diversity of bile acids in the bile acid pool. Gut microbial enzymes contribute significantly to bile acid metabolism through deconjugation and dehydroxylation reactions to generate unconjugated bile acids and secondary bile acids...
June 9, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28602480/endometrial-microbiota-new-player-in-town
#17
REVIEW
Inmaculada Moreno, Jason M Franasiak
Detection of bacteria with molecular techniques has enabled the study of low biomass microbiomes in tissues and organs previously considered sterile, such as the endometrium. Subsequently, an abnormal endometrial microbiota has been associated with implantation failure, pregnancy loss, and other gynecological and obstetrical conditions. Further investigation of the reproductive tract microbiome will allow for a better understanding of bacterial communities' role in both physiology and pathophysiology, which in turn impacts the ability to achieve pregnancy and maintain a healthy pregnancy...
June 8, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28602403/panacea-in-progress-crispr-and-the-future-of-its-biological-research-introduction
#18
REVIEW
Michael Carroll, Xiaohui Zhou
The elucidation of the CRISPR (clustered, regularly interspaced, short palindromic repeats) adaptive immune system endogenous to most microbial life has culminated in progress in a diversity of scientific disciplines. The concurrently promising and eccentric nature of its theoretically plausible applications has wrought enthusiasm in the research community globally, potentiating advancements in human and animal health, ecological stability, and economic wellbeing, that would hitherto be considered the unattainable fancies of a futurist...
August 2017: Microbiological Research
https://www.readbyqxmd.com/read/28600901/influences-of-environmental-bacteria-and-their-metabolites-on-allergies-asthma-and-host-microbiota
#19
REVIEW
G Jatzlauk, S Bartel, H Heine, M Schloter, S Krauss-Etschmann
The prevalence of allergic diseases and asthma has dramatically increased over the last decades, resulting in a high burden for patients and health care systems. Thus, there is an unmet need to develop preventative strategies for these diseases. Epidemiological studies show that reduced exposure to environmental bacteria in early life (e.g birth by cesarian section, being formula-fed, growing up in an urban environment or with less contact to various persons) is associated with an increased risk to develop allergies and asthma later in life...
June 10, 2017: Allergy
https://www.readbyqxmd.com/read/28600319/microbiome-and-nafld-potential-influence-of-aerobic-fitness-and-lifestyle-modification
#20
Matthew R Panasevich, Willem T Peppler, Daniel B Oerther, David C Wright, R Scott Rector
Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease with prevalence rates that are on the rise in the US and worldwide. NAFLD encompasses a spectrum of liver pathologies including simple steatosis to nonalcoholic steatohepatitis (NASH) with inflammation and fibrosis. The gut microbiome has emerged as a potential therapeutic target in combating metabolic diseases including obesity, type 2 diabetes, and NAFLD/NASH. Diet-induced obesity/Western style diet feeding causes severe microbial dysbiosis initiating a microbiome signature that promotes metabolite production that directly impacts hepatic metabolism...
June 9, 2017: Physiological Genomics
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