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Animal gut health

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https://www.readbyqxmd.com/read/29150660/gene-expression-profile-changes-in-the-jejunum-of-weaned-piglets-after-oral-administration-of-lactobacillus-or-an-antibiotic
#1
Dongyan Zhang, Tingting Shang, Yan Huang, Sixin Wang, Hui Liu, Jing Wang, Yamin Wang, Haifeng Ji, Rijun Zhang
The small intestine plays an essential role in the health and well-being of animals. Previous studies have shown that Lactobacillus has a protective effect on intestinal morphology, intestinal epithelium integrity and appropriate maturation of gut-associated tissues. Here, gene expression in jejunum tissue of weaned piglets was investigated by RNA-seq analysis after administration of sterile saline, Lactobacillus reuteri, or an antibiotic (chlortetracycline). In total, 401 and 293 genes were significantly regulated by chlortetracycline and L...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149221/dietary-protein-sources-differentially-affect-microbiota-mtor-activity-and-transcription-of-mtor-signaling-pathways-in-the-small-intestine
#2
Soumya K Kar, Alfons J M Jansman, Nirupama Benis, Javier Ramiro-Garcia, Dirkjan Schokker, Leo Kruijt, Ellen H Stolte, Johanna J Taverne-Thiele, Mari A Smits, Jerry M Wells
Dietary protein sources can have profound effects on host-microbe interactions in the gut that are critically important for immune resilience. However more knowledge is needed to assess the impact of different protein sources on gut and animal health. Thirty-six wildtype male C57BL/6J mice of 35 d age (n = 6/group; mean ± SEM body weight 21.9 ± 0.25 g) were randomly assigned to groups fed for four weeks with semi synthetic diets prepared with one of the following protein sources containing (300 g/kg as fed basis): soybean meal (SBM), casein, partially delactosed whey powder, spray dried plasma protein, wheat gluten meal and yellow meal worm...
2017: PloS One
https://www.readbyqxmd.com/read/29141969/cardiovascular-and-antiobesity-effects-of-resveratrol-mediated-through-the-gut-microbiota
#3
REVIEW
Julia K Bird, Daniel Raederstorff, Peter Weber, Robert E Steinert
Encouraging scientific research into the health effects of dietary bioactive resveratrol has been confounded by its rapid first-pass metabolism, which leads to low in vivo bioavailability. Preliminary studies have shown that resveratrol can modulate gut microbiota composition, undergo biotransformation to active metabolites via the intestinal microbiota, or affect gut barrier function. In rodents, resveratrol can modify the relative Bacteroidetes:Firmicutes ratio and reverse the gut microbial dysbiosis caused by a high-fat diet...
November 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/29141637/molecules-produced-by-probiotics-prevent-enteric-colibacillosis-in-pigs
#4
Ricardo Nordeste, Akalate Tessema, Sapana Sharma, Zlatko Kovač, Chuan Wang, Rocio Morales, Mansel William Griffiths
BACKGROUND: With the advent of antimicrobial resistance in animal pathogens, novel methods to combat infectious diseases are being sought. Among these, probiotics have been proposed as a means of promoting animal health but problems with their use has been reported. Research has demonstrated that bioactive molecules produced during the growth of certain probiotics interfere with bacterial cell-to-cell communication, which consequently results in an attenuation of virulence in a number of pathogens, including E...
November 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29135690/microbiota-and-hdl-metabolism
#5
Kazuhiro Nakaya, Katsunori Ikewaki
PURPOSE OF REVIEW: Accumulating evidence has provided new insights regarding potentially effective therapeutic options targeting modulation of HDL metabolism, resulting in the prevention of cardiovascular diseases. The gut microbiota has now been convincingly linked to host health, but its impact on host lipid metabolism, especially HDL metabolism, remains poorly understood. This review focuses on the recent progress in establishing associations between gut microbiota and host HDL metabolism...
November 11, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/29135456/probiotics-and-their-use-in-inflammatory-bowel-disease
#6
Muhammad Amer, Muhammad Nadeem, Saeed Ur Rashid Nazir, Maira Fakhar, Fatima Abid, Qurat-Ul Ain, Elliyah Asif
Context • Crohn's disease and ulcerative colitis result in similar gastrointestinal (GI) symptoms, including pain, diarrhea, stools with mucus or blood, and ulceration or tissue damage within the alimentary canal. Gut microbiota play a crucial role in triggering, maintaining, and exacerbating inflammatory bowel disease (IBD). Probiotics might help to rebalance the gut flora in a positive way, shifting from pro- to anti-inflammatory. Objectives • The study intended to investigate the safety and use of probiotics and the biological effects of probiotic bacteria on IBD...
November 14, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29133662/a-tiny-tick-can-cause-a-big-health-problem
#7
Manuel John, M Raman, Keith Ryan
Ticks are tiny crawling bugs in the spider family that feed by sucking blood from animals. They are second only to mosquitoes as vectors of human disease, both infectious and toxic. Infected ticks spread over a hundred diseases, some of which are fatal if undetected. They spread the spirochete (which multiplies in the insect's gut) with a subsequent bite to the next host. We describe the only reported cases of peri ocular tick bite from India that presented to us within a span of 3 days and its management. Due suspicion and magnification of the lesions revealed the ticks which otherwise masqueraded as small skin tags/moles on gross examination...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29127454/the-distal-gut-bacterial-community-of-some-primates-and-carnivora
#8
Xiu Chen, Qin-Yuan Li, Gui-Ding Li, Fang-Ji Xu, Li Han, Yi Jiang, Xue-Shi Huang, Cheng-Lin Jiang
Huge numbers of bacteria reside in the digestive tract of host and these microorganisms play a vital role in the host health, especially in the digestion of food and the development of immune system. Host phylogeny and diet, especially long-term diet, both have great influence on the gut bacterial community. Other aspects of host, such as gender, age, and the geography and weather they lived, are also correlated to their gut bacterial community. Feces are usually used for gut bacteria study and fecal bacteria can represent the distal gut bacteria...
November 10, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29118977/mycotoxin-binder-improves-growth-rate-in-piglets-associated-with-reduction-of-toll-like-receptor-4-and-increase-of-tight-junction-protein-gene-expression-in-gut-mucosa
#9
Linghong Jin, Wei Wang, Jeroen Degroote, Noémie Van Noten, Honglin Yan, Maryam Majdeddin, Mario Van Poucke, Luc Peelman, Anne Goderis, Kurt Van De Mierop, Ronny Mombaerts, Stefaan De Smet, Joris Michiels
Background: Deoxynivalenol (DON) is a mycotoxin produced by Fusarium species in the field, commonly found in cereal grains, which negatively affects performances and health of animals. Mycotoxin binders are supposed to reduce the toxicity of mycotoxins. Method: The effect of a mycotoxin binder (containing acid-activated bentonite, clinoptilolite, yeast cell walls and organic acids) on growth performance and gut health was studied. Hundred and twenty weaning piglets were allocated to 4 treatments, with 5 pens of 6 piglets each, arranged in a 2 × 2 factorial design: control diet; control diet with 1 kg/t binder; control diet with DON; and control diet with DON and 1 kg/t binder...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29115466/recombinant-tsp53-modulates-intestinal-epithelial-barrier-integrity-via-upregulation-of-zo%C3%A2-1-in-lps%C3%A2-induced-septic-mice
#10
Jia Xu, Zhihao Liu, Wei Zhan, Ren Jiang, Chunhua Yang, Hong Zhan, Yan Xiong
Tight junctions (TJs) are a critical component in maintaining the intestinal mucosal barrier function and gastrointestinal health of animals. Gut barrier dysfunction contributes to the initiation and development of sepsis which induces an uncontrollable systemic inflammatory response and gives rise to life‑threatening clinical conditions. Excretory‑secretary antigens from Trichimella spiralis (T. spiralis) have been reported to protect from sepsis in a mouse model, however the mechanism remains to be elucidated...
November 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29104563/promotion-of-early-gut-colonization-by-probiotic-intervention-on-microbiota-diversity-in-pregnant-sows
#11
Katarina Veljović, Miroslav Dinić, Jovanka Lukić, Sanja Mihajlović, Maja Tolinački, Milica Živković, Jelena Begović, Igor Mrvaljević, Nataša Golić, Amarela Terzić-Vidojević
The aim of this work was to design a novel mixed probiotic culture for piglets and to evaluate its beneficial effect on the piglets' gut health. The possible mechanisms of probiotic activity, such as adhesion, competitive pathogen exclusion and influence on gut microbiota diversity were determined. Mixed probiotic starter culture is composed of three thermophilic lactic acid bacteria (LAB) strains: Lactobacillus helveticus BGRA43, Lactobacillus fermentum BGHI14 and Streptococcus thermophilus BGVLJ1-44. The strains BGVLJ1-44 and BGRA43 showed good technological properties (fast milk curdling, strong proteolytic activity)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29102547/comprehensive-analysis-of-polyamine-transport-and-biosynthesis-in-the-dominant-human-gut-bacteria-potential-presence-of-novel-polyamine-metabolism-and-transport-genes
#12
Yuta Sugiyama, Misaki Nara, Mikiyasu Sakanaka, Aina Gotoh, Aya Kitakata, Shujiro Okuda, Shin Kurihara
Recent studies have reported that polyamines in the colonic lumen might affect animal health and these polyamines are thought to be produced by gut bacteria. In the present study, we measured the concentrations of three polyamines (putrescine, spermidine, and spermine) in cells and culture supernatants of 32 dominant human gut bacterial species in their growing and stationary phases. Combining polyamine concentration analysis in culture supernatant and cells with available genomic information showed that novel polyamine biosynthetic proteins and transporters were present in dominant human gut bacteria...
November 2, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29101658/probiotics-in-gut-bone-signaling
#13
Jonathan D Schepper, Regina Irwin, Jun Kang, Kevin Dagenais, Tristan Lemon, Ally Shinouskis, Narayanan Parameswaran, Laura R McCabe
The intestinal environment is linked to an array of conditions and diseases, including osteoporosis. Human and animal studies indicate that probiotics can benefit intestinal health and may provide a useful therapeutic to prevent and/or treat bone loss. Probiotics are defined as live microorganisms that when administered in adequate amounts will confer a health benefit on the host. In this review, we will focus on (1) probiotics (definition, history, nomenclature, types), (2) the effects of probiotics on bone health, and (3) mechanisms of probiotic prevention of bone pathologies...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29101657/prebiotics-and-bone
#14
Corrie M Whisner, Connie M Weaver
Recent advancements in food science have resulted in the extraction and synthesis of novel dietary fibers or prebiotics. Subsequently, great interest has emerged in developing strategies to improve metabolic conditions like osteoporosis by modulating the intestinal microbiome with fiber. Prebiotics have been shown to increase calcium absorption in the lower gut of both animals and humans as well as improve measures of bone mineral density and strength in rodent models. Fewer data are available in humans, but data from growing children and postmenopausal women suggest that prebiotics have both short- and long-term effects that beneficially affect bone turnover and mineral accretion in the skeleton...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29096310/glyphosate-has-limited-short-term-effects-on-commensal-bacterial-community-composition-in-the-gut-environment-due-to-sufficient-aromatic-amino-acid-levels
#15
Lene Nørby Nielsen, Henrik M Roager, Mònica Escolà Casas, Henrik L Frandsen, Ulrich Gosewinkel, Kai Bester, Tine Rask Licht, Niels Bohse Hendriksen, Martin Iain Bahl
Recently, concerns have been raised that residues of glyphosate-based herbicides may interfere with the homeostasis of the intestinal bacterial community and thereby affect the health of humans or animals. The biochemical pathway for aromatic amino acid synthesis (Shikimate pathway), which is specifically inhibited by glyphosate, is shared by plants and numerous bacterial species. Several in vitro studies have shown that various groups of intestinal bacteria may be differently affected by glyphosate. Here, we present results from an animal exposure trial combining deep 16S rRNA gene sequencing of the bacterial community with liquid chromatography mass spectrometry (LC-MS) based metabolic profiling of aromatic amino acids and their downstream metabolites...
October 27, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29091812/food-restriction-followed-by-refeeding-with-a-casein-or-whey-based-diet-differentially-affects-the-gut-microbiota-of-pre-pubertal-male-rats
#16
Majdi Masarwi, Hadas Isaac Solnik, Moshe Phillip, Sima Yaron, Raanan Shamir, Metsada Pasmanic-Chor, Galia Gat-Yablonski
Researchers are gaining an increasing understanding of host-gut microbiota interactions, but studies of the role of gut microbiota in linear growth are scarce. The aim of this study was to investigate the effect of food restriction and refeeding with different diets on gut microbiota composition in fast-growing rats. Young male Sprague-Dawley rats were fed regular rat chow ad libitum (control group) or subjected to 40% food restriction for 36 days followed by continued restriction or ad libitum refeeding for 24 days...
September 14, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29052511/q-a-what-are-pathogens-and-what-have-they-done-to-and-for-us
#17
Francois Balloux, Lucy van Dorp
Microbes are found on us, within us and around us. They inhabit virtually every environment on the planet and the bacteria carried by an average human, mostly in their gut, outnumber human cells. The vast majority of microbes are harmless to us, and many play essential roles in plant, animal and human health. Others, however, are either obligate or facultative pathogens exerting a spectrum of deleterious effects on their hosts. Infectious diseases have historically represented the most common cause of death in humans until recently, exceeding by far the toll taken by wars or famines...
October 19, 2017: BMC Biology
https://www.readbyqxmd.com/read/29050410/effect-of-feeding-soybean-meal-and-differently-processed-peas-on-intestinal-morphology-and-functional-glucose-transport-in-the-small-intestine-of-broilers
#18
I Röhe, F Goodarzi Boroojeni, J Zentek
Peas are locally grown legumes being rich in protein and starch. However, the broad usage of peas as a feed component in poultry nutrition is limited to anti-nutritional factors, which might impair gut morphology and function. This study investigated the effect of feeding raw or differently processed peas compared with feeding a soybean meal-based control diet (C) on intestinal morphology and nutrient transport in broilers. A total of 360 day-old broiler chicks were fed with one of the following diets: The C diet, and 3 diets containing raw peas (RP), fermented peas (FP) and enzymatically pre-digested peas (EP), each supplying 30% of dietary crude protein...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/29039142/microbiota-brain-gut-axis-and-neurodegenerative-diseases
#19
REVIEW
Eamonn M M Quigley
PURPOSE OF REVIEW: The purposes of this review were as follows: first, to provide an overview of the gut microbiota and its interactions with the gut and the central nervous system (the microbiota-gut-brain axis) in health, second, to review the relevance of this axis to the pathogenesis of neurodegenerative diseases, such as Parkinson's disease, and, finally, to assess the potential for microbiota-targeted therapies. RECENT FINDINGS: Work on animal models has established the microbiota-gut-brain axis as a real phenomenon; to date, the evidence for its operation in man has been limited and has been confronted by considerable logistical challenges...
October 17, 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29038387/nephrotoxic-effect-of-aspartame-as-an-artificial-sweetener-a-brief-review
#20
Mohammad Reza Ardalan, Hadi Tabibi, Vahideh Ebrahimzadeh Attari, Aida Malek Mahdavi
Aspartame is one of the most popular artificial sweeteners over the world. Although its consumption is considered to be safe in acceptable daily intake ranges which were set by the United States Food and Drugs Administration and other regulatory agencies, there are lots of controversies regarding its safety nowadays. Some of the recent experimental and epidemiological studies showed that consumption of aspartame may causes some adverse health effects including obesity, metabolic syndrome, and alteration in gut microbiota...
October 2017: Iranian Journal of Kidney Diseases
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