keyword
MENU ▼
Read by QxMD icon Read
search

Gut, microbiota, bacteria, probiotics

keyword
https://www.readbyqxmd.com/read/28199741/melatonin-prevents-obesity-through-modulation-of-gut-microbiota-in-mice
#1
Pengfei Xu, Jialin Wang, Fan Hong, Sheng Wang, Xi Jin, Tingting Xue, Li Jia, Yonggong Zhai
Excess weight and obesity are severe public health threats worldwide. Recent evidence demonstrates that gut microbiota dysbiosis contributes to obesity and its comorbidities. The body weight-reducing and energy balancing effects of melatonin have been reported in several studies, but to date, no investigations toward examining whether the beneficial effects of melatonin are associated with gut microbiota have been carried out. In this study, we show that melatonin reduces body weight, liver steatosis, and low-grade inflammation as well as improving insulin resistance in high fat diet (HFD)-fed mice...
February 15, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28194099/gut-to-brain-dysbiosis-mechanisms-linking-western-diet-consumption-the-microbiome-and-cognitive-impairment
#2
REVIEW
Emily E Noble, Ted M Hsu, Scott E Kanoski
Consumption of a Western Diet (WD) that is high in saturated fat and added sugars negatively impacts cognitive function, particularly mnemonic processes that rely on the integrity of the hippocampus. Emerging evidence suggests that the gut microbiome influences cognitive function via the gut-brain axis, and that WD factors significantly alter the proportions of commensal bacteria in the gastrointestinal tract. Here we review mechanisms through which consuming a WD negatively impacts neurocognitive function, with a particular focus on recent evidence linking the gut microbiome with dietary- and metabolic-associated hippocampal impairment...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28176664/role-of-lactic-acid-probiotic-bacteria-in-ibd
#3
Ravichandra Vemuri, Rohit Gundamaraju, Rajaraman Eri
BACKGROUND: IBD is considered as one of the major public health concerns worldwide. The pathophysiology and gut microbial alteration during inflammatory bowel disease (IBD) are still not completely understood. Gut microbiota is implicated in most of the gastro-intestinal (GI) diseases including IBD. From the time of gut microbiota establishment and through aging, it undergoes a lot of changes in the composition. METHODS: In a healthy state, the composition of beneficial microbes in the gut is comparatively higher and due to factors such as malnutrition, use of antibiotics and any underlying diseases allow the colonization and invasion of pathogens...
February 6, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28164854/the-microbiome-gut-brain-axis-in-health-and-disease
#4
REVIEW
Timothy G Dinan, John F Cryan
Gut microbes are capable of producing most neurotransmitters found in the human brain. Evidence is accumulating to support the view that gut microbes influence central neurochemistry and behavior. Irritable bowel syndrome is regarded as the prototypic disorder of the brain-gut-microbiota axis that can be responsive to probiotic therapy. Translational studies indicate that certain bacteria may have an impact on stress responses and cognitive functioning. Manipulating the gut microbiota with psychobiotics, prebiotics, or even antibiotics offers a novel approach to altering brain function and treating gut-brain axis disorders, such as depression and autism...
March 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28161414/dairy-propionibacteria-prevent-the-proliferative-effect-of-plant-lectins-on-sw480%C3%A2-cells-and-protect-the-metabolic-activity-of-the-intestinal-microbiota-in%C3%A2-vitro
#5
Gabriela Zárate, Gabriel D Sáez, Adriana Pérez Chaia
Plant lectins are specific carbohydrate-binding proteins that are widespread in legumes such as beans and pulses, seeds, cereals, and many plants used as farm feeds. They are highly resistant to cooking and digestion, reaching the intestinal lumen and/or blood circulation with biological activity. Since many legume lectins trigger harmful local and systemic reactions after their binding to the mucosal surface, these molecules are generally considered anti-nutritive and/or toxic substances. In the gut, specific cell receptors and bacteria may interact with these dietary components, leading to changes in intestinal physiology...
February 1, 2017: Anaerobe
https://www.readbyqxmd.com/read/28134688/progress-with-treating-the-microbial-dysbiosis-associated-with-irritable-bowel-syndrome
#6
James S Pearson, Peter J Whorwell
PURPOSE OF REVIEW: Microbial dysbiosis is receiving increasing attention as possibly being important in the pathophysiology of irritable bowel syndrome. This review will summarize the most recent literature addressing attempts to explore and target the microbiome in patients with irritable bowel syndrome. RECENT FINDINGS: Manipulation of the intestinal microbiota in irritable bowel syndrome is receiving increasing attention. Traditionally, dietary manipulation has been utilized...
January 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28121325/modulation-of-gut-microbiota-and-increase-in-fecal-water-content-in-mice-induced-by-administration-of-lactobacillus-kefiranofaciens-dn1
#7
Dana Jeong, Dong-Hyeon Kim, Il-Byeong Kang, Hyunsook Kim, Kwang-Young Song, Hong-Seok Kim, Kun-Ho Seo
Lactobacillus kefiranofaciens is the key probiotic bacterium in kefir. In this study, we investigated the effects of oral consumption of L. kefiranofaciens on the fecal quality and intestinal microbiota of mice. Four-week-old Balb/c mice were divided into two groups (n = 8 each) and administered 0.2 mL of saline (control group) or saline containing 2 × 10(8) cfu L. kefiranofaciens DN1 (LKF_DN1 group) for two weeks. At the end of the experiment, their fecal samples were collected and the fecal quality and microbiota were assessed...
January 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28116928/assessment-of-the-synbiotic-properites-of-human-milk-oligosaccharides-and-bifidobacterium-longum-subsp-infantis-in-vitro-and-in-humanised-mice
#8
S Musilova, N Modrackova, P Hermanova, T Hudcovic, R Svejstil, V Rada, V Tejnecky, V Bunesova
The mode of delivery plays a crucial role in infant gastrointestinal tract colonisation, which in the case of caesarean section is characterised by the presence of clostridia and low bifidobacterial counts. Gut colonisation can be modified by probiotics, prebiotics or synbiotics. Human milk oligosaccharides (HMOs) are infant prebiotics that show a bifidogenic effect. Moreover, genome sequencing of Bifidobacterium longum subsp. infantis within the infant microbiome revealed adaptations for milk utilisation. This study aimed to evaluate the synbiotic effect of B...
January 24, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#9
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28105081/cross-feeding-of-glucose-metabolism-byproducts-of-escherichia-coli-human-gut-isolates-and-probiotic-strains-affect-survival-of-vibrio-cholerae
#10
Chirantana Sengupta, Manjula Ekka, Saurabh Arora, Prashant D Dhaware, Rukhsana Chowdhury, Saumya Raychaudhuri
Vibrio cholerae converts glucose into either acid or the neutral end product acetoin and its survival in carbohydrate enriched media is linked to the nature of the byproducts produced. It has been demonstrated in this study that Escherichia coli strain isolated from the gut of healthy human volunteers and the commonly used probiotic E. coli Nissle strain that metabolize glucose to acidic byproducts drastically reduce the survival of V. cholerae strains irrespective of their glucose sensitivity and acetoin production status...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28071925/gene-editing-and-genetic-engineering-approaches-for-advanced-probiotics-a-review
#11
Ruby Yadav, Vishal Kumar, Mehak Baweja, Pratyoosh Shukla
The applications of probiotics are significant and thus resulted in need of genome analysis of probiotic strains. Various omics methods and systems biology approaches enables us to understand and optimize the metabolic processes. These techniques have increased the researcher's attention towards gut microbiome and provided a new source for the revelation of uncharacterized biosynthetic pathways which enables novel metabolic engineering approaches. In recent years, the broad and quantitative analysis of modified strains relies on systems biology tools such as in silico design which are commonly used methods for improving strain performance...
January 10, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28067677/the-microbiome-in-mechanically-ventilated-patients
#12
Yudong Yin, Peter Hountras, Richard G Wunderink
PURPOSE OF REVIEW: Discovery of a normal lung microbiome requires reassessment of our concepts of HAP/VAP pathogenesis and has important implications for clinical diagnosis and management. RECENT FINDINGS: Changes in the microbiome of dental plaque are associated with increased risk of HAP/VAP. A transition to a lung microbiome enriched with gut flora is found in ARDS with an increased inflammatory response in patients with this change in microbial flora. A characteristic microbiome pattern of higher amounts of bacterial DNA, lower community diversity, and greater relative abundance of a single species characterize pneumonia and occasionally identify bacteria not found in culture...
January 6, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28059938/the-effects-of-probiotics-and-symbiotics-on-risk-factors-for-hepatic-encephalopathy-a-systematic-review
#13
Daniela Viramontes Hörner, Amanda Avery, Ruth Stow
Alterations in the levels of intestinal microbiota, endotoxemia, and inflammation are novel areas of interest in the pathogenesis of hepatic encephalopathy (HE). Probiotics and symbiotics are a promising treatment option for HE due to possible beneficial effects in modulating gut microflora and might be better tolerated and more cost-effective than the traditional treatment with lactulose, rifaximin or L-ornithine-L-aspartate. A systematic search of the electronic databases PubMed, ISI Web of Science, EMBASE, and Cochrane Library was conducted for randomized controlled clinical trials in adult patients with cirrhosis, evaluating the effect of probiotics and symbiotics in changes on intestinal microflora, reduction of endotoxemia, inflammation, and ammonia, reversal of minimal hepatic encephalopathy (MHE), prevention of overt hepatic encephalopathy (OHE), and improvement of quality of life...
January 5, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28045927/synbiotics-for-broiler-chickens-in-vitro-design-and-evaluation-of-the-influence-on-host-and-selected-microbiota-populations-following-in-ovo-delivery
#14
Aleksandra Dunislawska, Anna Slawinska, Katarzyna Stadnicka, Marek Bednarczyk, Piotr Gulewicz, Damian Jozefiak, Maria Siwek
Synbiotics are synergistic combinations of prebiotics and probiotics. In chickens, synbiotics can be delivered in ovo to expedite colonization of the gut by beneficial bacteria. We therefore aimed to design synbiotics in vitro and validate them in broiler chickens upon in ovo delivery. The probiotic components of the synbiotics were Lactobacillus salivarius and Lactobacillus plantarum. Their growth was assessed in MRS medium supplemented with different prebiotics. Based on in vitro results (hatchability and growth curve), two synbiotics were designed: S1 -Lactobacillus salivarius with galactooligosaccarides (GOS) and S2 -Lactobacillus plantarum with raffinose family oligosaccharides (RFO)...
2017: PloS One
https://www.readbyqxmd.com/read/28042926/the-potential-impact-of-gut-microbiota-on-your-health-current-status-and-future-challenges
#15
Stitaya Sirisinha
Our health and probably also our behaviors and mood depend not only on what we eat or what we do (lifestyle behaviors), but also on what we host. It is well established for decades that all vertebrates including humans are colonized by a wide array of bacteria, fungi, eukaryotic parasites and viruses, and that, at steady state (homeostasis), this community of microbes establishes a friendly mutual relationship with the host. The term microbiota was originally meant to represent an ecological community of commensals and potentially pathogenic microbes that live within our bodies, but it is now used interchangeably with the term microbiome which was initially meant to represent a collective genome of the microbiota...
December 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28025548/improvement-of-intestinal-immune-cell-function-by-lactic-acid-bacteria-for-dairy-products
#16
Tomonori Kamiya, Yohei Watanabe, Seiya Makino, Hiroshi Kano, Noriko M Tsuji
Lactic acid bacteria (LAB) form a major component of gut microbiota and are often used as probiotics for fermented foods, such as yoghurt. In this study, we aimed to evaluate immunomodulatory activity of LAB, especially that of Lactobacillus bulgaricus ME-552 (ME552) and Streptococcus thermophilus ME-553 (ME553). In vivo/in vitro assay was performed in order to investigate their effects on T cell function. After oral administration of ME553 to C57BL/6 mice, the amount of both interferon γ (IFN-γ) and interleukin 17 (IL-17) produced by cluster of differentiation (CD) 4⁺ T cells from Peyer's patches (PPs) were significantly enhanced...
December 23, 2016: Microorganisms
https://www.readbyqxmd.com/read/28018866/bacillus-sp-qsi-1-modulate-quorum-sensing-signals-reduce-aeromonas-hydrophila-level-and-alter-gut-microbial-community-structure-in-fish
#17
Shuxin Zhou, An Zhang, Hongping Yin, Weihua Chu
Quorum sensing (QS) is a cell density dependent process that enables bacteria to communicate with each other based on the production, secretion and sensing of the auto-inducer molecules and then subsequently regulate virulence associated gene expression. Interrupting quorum sensing may represent a novel alternative approach to combat bacterial pathogen. Several bacteria can produce quorum quenching (QQ) enzymes. However, the role of QQ bacteria in shaping the microbiota and the level of N-acyl-homoserine lactones (AHLs, a prevalent type of QS molecules) producing bacteria remains largely unknown...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28018362/visualization-of-probiotic-mediated-ca-2-signaling-in-intestinal-epithelial-cells-in-vivo
#18
Takahiro Adachi, Shigeru Kakuta, Yoshiko Aihara, Tomonori Kamiya, Yohei Watanabe, Naomi Osakabe, Naoki Hazato, Atsushi Miyawaki, Soichiro Yoshikawa, Takako Usami, Hajime Karasuyama, Hiromi Kimoto-Nira, Kazuhiro Hirayama, Noriko M Tsuji
Probiotics, such as lactic acid bacteria (LAB) and Bacillus subtilis var. natto, have been shown to modulate immune responses. It is important to understand how probiotic bacteria impact intestinal epithelial cells (IECs), because IECs are the first line of defense at the mucosal surface barrier and their activities substantially affect the gut microenvironment and immunity. However, to date, their precise mechanism remains unknown due to a lack of analytical systems available for live animal models. Recently, we generated a conditional Ca(2+) biosensor Yellow Cameleon (YC3...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28018313/outer-membrane-vesicles-and-soluble-factors-released-by-probiotic-escherichia-coli-nissle-1917-and-commensal-ecor63-enhance-barrier-function-by-regulating-expression-of-tight-junction-proteins-in-intestinal-epithelial-cells
#19
Carina-Shianya Alvarez, Josefa Badia, Manel Bosch, Rosa Giménez, Laura Baldomà
The gastrointestinal epithelial layer forms a physical and biochemical barrier that maintains the segregation between host and intestinal microbiota. The integrity of this barrier is critical in maintaining homeostasis in the body and its dysfunction is linked to a variety of illnesses, especially inflammatory bowel disease. Gut microbes, and particularly probiotic bacteria, modulate the barrier integrity by reducing gut permeability and reinforcing tight junctions. Probiotic Escherichia coli Nissle 1917 (EcN) is a good colonizer of the human gut with proven therapeutic efficacy in the remission of ulcerative colitis in humans...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28008786/a-probiotic-combination-attenuates-experimental-colitis-through-inhibition-of-innate-cytokine-production
#20
M S Kim, J S Byun, Y S Yoon, D Y Yum, M J Chung, J C Lee
Inflammatory bowel disease (IBD) is a severe immune cell-mediated syndrome characterised by extensive inflammatory and effector mucosal responses leading to tissue destruction in the colon and small intestine. The leading hypothesis is that dysbiosis of the gut flora causes an excessive immune response and inflammation in the gastrointestinal track. Lactic acid bacteria (LAB) can correct dysbiosis of the normal microbiota. In the current study, the therapeutic potential of seven LAB strains in combination to treat IBD was evaluated using experimental colitis model...
December 23, 2016: Beneficial Microbes
keyword
keyword
53864
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"