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https://www.readbyqxmd.com/read/28316999/does-the-gut-microbiota-influence-immunity-and-inflammation-in-multiple-sclerosis-pathophysiology
#1
Monika Adamczyk-Sowa, Aldona Medrek, Paulina Madej, Wirginia Michlicka, Pawel Dobrakowski
Aim. Evaluation of the impact of gut microflora on the pathophysiology of MS. Results. The etiopathogenesis of MS is not fully known. Gut microbiota may be of a great importance in the pathogenesis of MS, since recent findings suggest that substitutions of certain microbial population in the gut can lead to proinflammatory state, which can lead to MS in humans. In contrast, other commensal bacteria and their antigenic products may protect against inflammation within the central nervous system. The type of intestinal flora is affected by antibiotics, stress, or diet...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28297790/-role-of-probiotics-in-treatment-of-nonalcoholic-fatty-liver-disease
#2
M Chen, M C Wang, R Ni, J Wang, L Wang, G N Wang, L Y Zhang
Nonalcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases in China and manifests as simple fatty liver, non-alcoholic steatohepatitis, liver cirrhosis, and hepatocellular carcinoma. Studies have shown that intestinal flora can affect the development and progression of NAFLD via the "gut-liver axis" . Probiotics are active microorganisms with beneficial effects on the host, and more and more studies have found that probiotics play a positive role in improving NAFLD. They are cheaper, less harmful, and safer compared with antibiotics and surgery, and therefore, it may become a new method for the prevention and treatment of NAFLD...
January 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28293920/the-intriguing-link-between-the-intestinal-microbiota-and-cardiovascular-disease
#3
Giuseppe Lippi, Elisa Danese, Camilla Mattiuzzi, Emmanuel J Favaloro
Human microbiota is a term conventionally used to define the normal flora of microbes living in all of us, most of which are resident in the gastrointestinal tract. Despite it having been known for some time that the vast majority of intestinal bacteria exert a strong influence on human life, recent technologic breakthroughs have made it possible to more accurately characterize the host microbial communities and explore their relationship with many human diseases. Notably, the evidence accumulated over the past 10 years suggests that a reasonable relationship can now be established between gut microbiota composition and the risk of cardiovascular disease...
March 14, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28291252/influence-of-ad-libitum-feeding-of-piglets-with-bacillus-subtilis-fermented-liquid-feed-on-gut-flora-luminal-contents-and-health
#4
Yuyong He, Chunxia Mao, Hong Wen, Zhiyu Chen, Tao Lai, Lingyu Li, Wei Lu, Huadong Wu
Some scholars caution that long-term ad libitum feeding with probiotic fermented food poses potential health risks to baby animals. We conducted a feeding experiment to investigate the influence of ad libitum feeding of pre-and post-weaned piglets with a Bacillus subtilis fermented diet on the gut microbiome, gut metabolomic profiles, bile acid metabolism, proinflammatory cytokines and faecal consistency. Compared with piglets fed a Bacillus subtilis-supplemented pellet diet, piglets fed the Bacillus subtilis fermented liquid diet had lower intestinal bacterial diversity (P > 0...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28290302/the-modulatory-effect-of-epigallocatechin-3-o-3-o-methyl-gallate-egcg3%C3%A2-me-on-intestinal-microbiota-of-high-fat-diet-induced-obesity-mice-model
#5
Mei Cheng, Xin Zhang, Yingjie Miao, Jinxuan Cao, Zufang Wu, Peifang Weng
(-)-Epigallocatechin 3-O-(3-O-methyl) gallate (EGCG3″Me) has exhibited multiple beneficial effects on the prevention of obesity in oolong tea. However, its absorption is relatively low, and the potential to be fully utilized is not completely elucidated. Therefore, with human flora-associated (HFA) mice model, the effect of EGCG3″Me on high fat diet-induced obesity was investigated by high-throughput sequencing. The shifts in relative abundance of the dominant taxa at the phylum, family and genus levels showed the dramatically effects of EGCG3″Me...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28257583/the-oral-cavity-microbiota-between-health-oral-disease-and-cancers-of-the-aerodigestive-tract
#6
Pierre Le Bars, Sebastien Metamoros, Emmanuel Montassier, Françoise Le Vacon, Gilles Potel, Assem Soueidan, Fabienne Jordana, Marie-France De La Cochétière
Many studies show that the human microbiome plays a critical role in the chronic pathologies of obesity, inflammatory bowel diseases, and diabetes. More recently, the interaction between cancer and the microbiome has been highlighted. Most studies have focused on the gut microbiota because it represents the most extensive bacterial community, and the body of evidence correlating it with gut syndromes is increasing. However, in the strict sense, the gastrointestinal (GI) tract begins in the oral cavity, and special attention should be paid to the specific flora of this cavity...
March 3, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28254498/effects-of-tussah-immunoreactive-substances-on-growth-immunity-disease-resistance-against-vibrio-splendidus-and-gut-microbiota-profile-of-apostichopus-japonicus
#7
Shuhui Ma, Yongxin Sun, Fuqiang Wang, Rui Mi, Zhixin Wen, Xuejun Li, Nan Meng, Yajie Li, Xingfan Du, Shuying Li
Tussah immunoreactive substance (TIS) comprises a number of active chemicals with various bioactivities. The current study investigated the effects of these substances on the sea cucumber Apostichopus japonicus. The specific growth rate (SGR) of TIS-fed sea cucumbers was significantly enhanced, whereas no significant difference in SGR was observed between those soaked in antibiotics and those fed with basal diet only. TIS also improved the immune response of the animals when given at a dose of 1.0% or 2.0%, as shown by increased phagocytic, lysozyme, superoxide dismutase, alkaline phosphatase, acid phosphatase, and catalase activities following injection with live Vibrio splendidus...
February 27, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28251182/unexplored-archaeal-diversity-in-the-great-ape-gut-microbiome
#8
Kasie Raymann, Andrew H Moeller, Andrew L Goodman, Howard Ochman
Archaea are habitual residents of the human gut flora but are detected at substantially lower frequencies than bacteria. Previous studies have indicated that each human harbors very few archaeal species. However, the low diversity of human-associated archaea that has been detected could be due to the preponderance of bacteria in these communities, such that relatively few sequences are classified as Archaea even when microbiomes are sampled deeply. Moreover, the universal prokaryotic primer pair typically used to interrogate microbial diversity has low specificity to the archaeal domain, potentially leaving vast amounts of diversity unobserved...
January 2017: MSphere
https://www.readbyqxmd.com/read/28240160/dietary-additive-probiotics-modulation-of-the-intestinal-microbiota
#9
Shenglan Hu, Li Wang, Zongyong Jiang
The importance of the intestinal microbiota of animals is widely acknowledged because of its vital role in the health of animals. There are complex communities of microbiota, which colonize the gastrointestinal tract. Intestinal microbiota are conductive to animal health and the development of the host immune system. Probiotics are commonly used dietary additives where they provide the host with many beneficial functions, such as modulating intestinal homeostasis and promoting gut health. These beneficial effects of probiotics may accrue from the inhibiting the growth of pathogenic bacteria and promoting the growth of beneficial flora in the gastrointestinal tract...
February 23, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28230723/bifidobacterium-adolescentis-exerts-strain-specific-effects-on-constipation-induced-by-loperamide-in-balb-c-mice
#10
Linlin Wang, Lujun Hu, Qi Xu, Boxing Yin, Dongsheng Fang, Gang Wang, Jianxin Zhao, Hao Zhang, Wei Chen
Constipation is one of the most common gastrointestinal complaints worldwide. This study was performed to determine whether Bifidobacterium adolescentis exerts inter-strain differences in alleviating constipation induced by loperamide in BALB/c mice and to analyze the main reasons for these differences. BALB/c mice underwent gavage with B. adolescentis (CCFM 626, 667, and 669) once per day for 17 days. The primary outcome measures included related constipation indicators, and the secondary outcome measures were the basic biological characteristics of the strains, the concentration changes of short-chain fatty acids in feces, and the changes in the fecal flora...
February 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28229828/successful-treatment-of-a-refractory-dysbiotic-intestinal-pseudo-obstruction-in-a-patient-with-systemic-sclerosis-polymyositis-overlap-syndrome-by-intravenous-immunoglobulin-administration-possibly-related-to-gut-flora-normalisation
#11
Risa Kamei, Toshifumi Yamaoka, Kuniko Ikinaga, Hiroyuki Murota, Kentaro Shimizu, Ichiro Katayama
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January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28223922/gut-microbiota-a-potential-regulator-of-neurodevelopment
#12
REVIEW
Paola Tognini
During childhood, our brain is exposed to a variety of environmental inputs that can sculpt synaptic connections and neuronal circuits, with subsequent influence on behavior and learning processes. Critical periods of neurodevelopment are windows of opportunity in which the neuronal circuits are extremely plastic and can be easily subjected to remodeling in response to experience. However, the brain is also more susceptible to aberrant stimuli that might lead to altered developmental trajectories. Intriguingly, postnatal brain development is paralleled by the maturation of the gut microbiota: the ecosystem of symbionts populating our gastro-intestinal tract...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28217744/effect-of-tcdr-mutation-on-sporulation-in-the-epidemic-clostridium-difficile-strain-r20291
#13
Brintha P Girinathan, Marc Monot, Daniel Boyle, Kathleen N McAllister, Joseph A Sorg, Bruno Dupuy, Revathi Govind
Clostridium difficile is an important nosocomial pathogen and the leading cause of hospital-acquired diarrhea. Antibiotic use is the primary risk factor for the development of C. difficile-associated disease because it disrupts normally protective gut flora and enables C. difficile to colonize the colon. C. difficile damages host tissue by secreting toxins and disseminates by forming spores. The toxin-encoding genes, tcdA and tcdB, are part of a pathogenicity locus, which also includes the tcdR gene that codes for TcdR, an alternate sigma factor that initiates transcription of tcdA and tcdB genes...
January 2017: MSphere
https://www.readbyqxmd.com/read/28215914/fecal-carriage-of-mdros-in-a-population-of-lebanese-elderly-dynamics-and-impact-on-bacterial-fitness
#14
Caren Challita, Elias Dahdouh, Michel Attieh, Iman Dandachi, Elio Ragheb, Roy Taoutel, Carl Tanba, Ziad Daoud
Muti-Drug Resistant Organisms (MDROs) are problematic all over the world, especially in Lebanon. High fecal carriage rates of MDR Enterobacteriaceae were reported from Lebanese nursing homes. Some studies show that MDROs have a fitness cost as compared to sensitive isolates. In this study, the competitive growth of MDR Escherichia coli obtained from fecal samples from elderly is assessed. Fecal swabs from ten elderly patients from a Lebanese nursing home were obtained between June and December, 2015. Isolates were identified by API 20E and antimicrobial susceptibilities were determined...
February 16, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28210795/observational-comparisons-of-intestinal-microbiota-characterizations-immune-enzyme-activities-and-muscle-amino-acid-compositions-of-loach-in-paddy-fields-and-ponds-in-sichuan-province
#15
Song Yang, Yuanliang Duan, Jie Zhang, Jian Zhou, Ya Liu, Jun Du, Liulan Zhao, Zongjun Du, Shuaishuai Han
A balanced intestinal microbial ecosystem is crucial for the growth and health of animals because it can influence the digestion and absorption of nutrients in the intestine. Different culture conditions may change the ecology of microbial in intestine and thus affect the overall growth performance of an animal. In this study, we compared intestinal morphologies, microbiota characterizations, immune enzyme activities, and muscle amino acid compositions of loach cultured in paddy fields and ponds. The fish were fed with the same diets from May 5 to November 5 (2015) in three paddy or ponds...
February 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28188734/mixing-and-pumping-functions-of-the-intestine-of-zebrafish-larvae
#16
Jinyou Yang, Yuji Shimogonya, Takuji Ishikawa
Due to its transparency, the intestine of zebrafish larvae has been widely used in studies of gastrointestinal diseases and the microbial flora of the gut. However, transport phenomena in the intestine of zebrafish larvae have not been fully clarified. In this study, therefore, transport caused by peristaltic motion in the intestine of zebrafish larvae was investigated by numerical simulation. An anatomically realistic three-dimensional geometric model of the intestine at various times after feeding was constructed based on the experimental data of Field et al...
February 7, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28165395/the-fungal-mycobiome-and-its-interaction-with-gut-bacteria-in-the-host
#17
REVIEW
Qi Hui Sam, Matthew Wook Chang, Louis Yi Ann Chai
The advent of sequencing technology has endowed us with the capacity to study microbes constituting the human commensal community that were previously non-culturable. Much of the initial works have concentrated on the bacterial flora constituting the gut microbiome, since specimens are readily accessible in health and disease. Less, however, is understood of the "silent population"-the fungal species, also known as the mycobiome. Living in symbiosis with bacteria as commensals in our body, it is perceivable that the mycobiome exerts an inadvertent influence on the microbiome...
February 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28163824/draft-genome-sequence-of-lactobacillus-plantarum-strains-e2c2-and-e2c5-isolated-from-human-stool-culture
#18
Mangesh V Suryavanshi, Dhiraj Paul, Swapnil P Doijad, Shrikant S Bhute, Tejashri B Hingamire, Rahul P Gune, Yogesh S Shouche
Probiotic Lactobacillus species offer various health benefits, thus have been employed in treatment and prevention of various diseases. Due to the differences in the isolation source and the site of action, most of the lactobacilli tested in-vitro for probiotics properties fail to extend similar effects in-vivo. Consequently, the search of autochthonous, efficacious and probably population specific probiotics is a high priority in the probiotics research. In this regards, whole genome sequencing of as many Lactobacillus as possible will help to deepen our understanding of biology and their health effects...
2017: Standards in Genomic Sciences
https://www.readbyqxmd.com/read/28155242/sensory-neuron-regulation-of-gastrointestinal-inflammation-and-bacterial-host-defence
#19
N Y Lai, K Mills, I M Chiu
Sensory neurons in the gastrointestinal tract have multifaceted roles in maintaining homeostasis, detecting danger and initiating protective responses. The gastrointestinal tract is innervated by three types of sensory neurons: dorsal root ganglia, nodose/jugular ganglia and intrinsic primary afferent neurons. Here, we examine how these distinct sensory neurons and their signal transducers participate in regulating gastrointestinal inflammation and host defence. Sensory neurons are equipped with molecular sensors that enable neuronal detection of diverse environmental signals including thermal and mechanical stimuli, inflammatory mediators and tissue damage...
February 2, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28150479/the-intestinal-mycobiota-a-year-of-observation-about-the-incidence-of-yeast-s-isolation-in-fecal-samples
#20
Lucia Barcella, Santa B Rogolino, Angelo P Barbaro
BACKGROUND: Yeast's presence, especially Candida's species, in the intestinal tract is now considered as part of the normal microbial human flora; however, fungal colonization of the colon may induce to fungal infections, becoming a risk not only in immunocompromised patients but also in normalcompetent subjects. The purpose of this epidemiological study was to evaluate the real incidence of yeasts into the fecal samples both from healthy outpatients and from inpatients, except those from wards concerning immunosuppressive and pediatrics pathologies...
February 1, 2017: Minerva Gastroenterologica e Dietologica
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