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https://www.readbyqxmd.com/read/28823095/methanobrevibacter-smithii-a-methanogen-consistently-colonising-the-newborn-stomach
#1
G Grine, M A Boualam, M Drancourt
Methanobrevibacter smithii is the main human methanogen almost always found in the digestive tract of adults. Yet, the age at which M. smithii establishes itself as part of the developing intestinal microflora remains unknown. In order to gain insight into this, we developed a polyphasic approach, including microscopic observation by fluorescence in situ hybridisation, polymerase chain reaction (PCR) sequencing detection, identification and culture, to isolate and genotype M. smithii in one-day-old newborns' gastric juice specimens...
August 19, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28823001/effects-of-fermented-milk-products-on-bone
#2
REVIEW
René Rizzoli, Emmanuel Biver
Fermented milk products like yogurt or soft cheese provide calcium, phosphorus, and protein. All these nutrients influence bone growth and bone loss. In addition, fermented milk products may contain prebiotics like inulin which may be added to yogurt, and provide probiotics which are capable of modifying intestinal calcium absorption and/or bone metabolism. On the other hand, yogurt consumption may ensure a more regular ingestion of milk products and higher compliance, because of various flavors and sweetness...
August 19, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28822969/preconditioning-with-the-bkca-channel-activator-ns-1619-prevents-ischemia-reperfusion-induced-inflammation-and-mucosal-barrier-dysfunction-ros-and-ho-1
#3
Hongyan Dai, Meifang Wang, Parag N Patel, Theodore J Kalogeris, Yajun Liu, William Durante, Ronald J Korthuis
Activation of large conductance, calcium-activated potassium (BKCa) channels evokes cell survival programs that mitigate intestinal ischemia and reperfusion (I/R) inflammation and injury 24 hours later. The goal of the current study was to determine the role of reactive oxygen species (ROS) and heme oxygenase (HO)-1 in delayed acquisition of tolerance to I/R induced by pretreatment with the BKCa channel opener NS-1619. Superior mesentery arteries were occluded for 45 min followed by reperfusion for 70 min in wild type (WT) or HO-1 null (HO-1(-/-)) mice that were pretreated with NS-1619 or saline vehicle 24 hrs earlier...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822931/adherence-of-microplastics-to-soft-tissue-of-mussels-a-novel-way-to-uptake-microplastics-beyond-ingestion
#4
Prabhu Kolandhasamy, Lei Su, Jiana Li, Xiaoyun Qu, Khalida Jabeen, Huahong Shi
Microplastic pollution is recognized as an emerging threat to aquatic ecosystems. One of the main environmental risks associated with microplastics is their bioavailability to marine organisms. Up to date, ingestion has been widely accepted as the sole way for the animals to uptake microplastics. Nevertheless, microplastics have also been found in some organs which are not involved in the process of ingestion. We hypothesize that the animal might uptake microplastics through adherence in addition to ingestion...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822867/de-novo-assembly-and-characterization-of-seabass-lateolabrax-japonicus-transcriptome-and-expression-of-hepatic-genes-following-different-dietary-phosphorus-calcium-levels
#5
Kang-Le Lu, Zhong-Li Ji, Samad Rahimnejad, Chun-Xiao Zhang, Ling Wang, Kai Song
Fish farming seriously influences the aquatic environment because most dietary phosphorus (P) is excreted in the effluent. To increase the P utilization in fish, molecular techniques should be explored given the remarkable development of these techniques. Thus, to identify the candidate genes related to P utilization and molecular alterations following administration of a P-deficient diet in seabass Lateolabrax japonicus, we assessed the de novo pituitary, gill, intestine, liver, kidney, scales and vertebra transcriptomes, and we compared the expression of hepatic genes with three diets varying in P and Ca levels: diet I (0...
August 9, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28822847/intestinal-adaptations-following-bariatric-surgery-towards-the-identification-of-new-pharmacological-targets-for-obesity-related-metabolic-diseases
#6
REVIEW
Lara Ribeiro-Parenti, Jean-Baptiste Cavin, Maude Le Gall
Although the gastrointestinal tract is the primary target of bariatric surgery, its contributions to the metabolic changes observed after surgery are still underestimated. Changes in the number of incretin-producing cells could result in the modified hormonal response seen after surgery. Additionally, the rate of absorption and consumption of glucose could contribute to the ameliorated glycaemia. Moreover, decreased intestinal permeability could prevent endotoxemia. Recently, numerous studies have focused on intestinal adaptation following bariatric surgeries...
August 17, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28822664/laparoscopic-ligation-of-inferior-mesenteric-artery-for-the-treatment-of-type-ii-endoleak-after-endovascular-aortic-aneurysm-repair
#7
REVIEW
Konstantinos Spanos, Nikolaos Tsilimparis, Axel Larena-Avellaneda, Athanasios D Giannoukas, Sebastian E Debus, Tilo Kölbel
OBJECTIVE: Type II endoleak after endovascular aneurysm repair (EVAR) is frequently caused by persistent flow from the inferior mesenteric artery (IMA). The aim of this study was to assess the perioperative and midterm efficacy of laparoscopic ligation of the IMA for treatment of endoleak. METHODS: MEDLINE, Cochrane Central Register of Controlled Trials, and Cochrane databases and key references were searched with Preferred Reporting Items for Systematic Reviews and Meta-Analyses methodology for studies reporting on laparoscopic ligation of the IMA for treatment of type II endoleak after EVAR...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822642/a-suicidal-strain-of-listeria-monocytogenes-is-effective-as-a-dna-vaccine-delivery-system-for-oral-administration
#8
Shubhra Sinha, Cheng-Yi Kuo, Joan K Ho, Paul J White, Jalal A Jazayeri, Colin W Pouton
In this study we determined the in vivo activity of model ovalbumin vaccines delivered by direct intramuscular delivery of plasmid DNA or oral delivery using a recombinant suicidal Listeria monocytogenes strain (rsΔ2). In a previous report we described how rsΔ2 is capable of delivering luciferase, as protein or DNA, in vitro, into non-dividing intestinal epithelial cells (Kuo et al., 2009). This is achieved by engineering a dual expression shuttle vector, pDuLX-Luc, that replicates in E. coli and rsΔ2 and drives gene expression from the Listeria promoter (Phly) as well as the eukaryotic cytomegalovirus promoter (CMV), thereby delivering both protein and plasmid DNA to the cell cytoplasm...
August 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28822617/microbiota-dysbiosis-in-select-human-cancers-evidence-of-association-and-causality
#9
REVIEW
Jie Chen, Jada C Domingue, Cynthia L Sears
The human microbiota is a complex ecosystem of diverse microorganisms consisting of bacteria, viruses, and fungi residing predominantly in epidermal and mucosal habitats across the body, such as skin, oral cavity, lung, intestine and vagina. These symbiotic communities in health, or dysbiotic communities in disease, display tremendous interaction with the local environment and systemic responses, playing a critical role in the host's nutrition, immunity, metabolism and diseases including cancers. While the profiling of normal microbiota in healthy populations is useful and necessary, more recent studies have focused on the microbiota associated with disease, particularly cancers...
August 16, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28822553/vitamin-d-status-in-growing-dairy-goats-and-sheep-influence-of-ultraviolet-b-radiation-on-bone-metabolism-and-calcium-homeostasis
#10
M V Nemeth, M R Wilkens, A Liesegang
The aim of this study was to investigate how controlled UVB irradiation in combination with reduced nutritional vitamin D (vitD) supply affects vitD status and Ca metabolism of growing goats and sheep. The hypothesis was that, like dairy cows, goats and sheep are able to compensate for the missing nutritional supply of vitD through endogenous production in the skin, with the consequence of a high vitD status and a balanced Ca homeostasis. Sixteen lambs and 14 goat kids aged 3 and a half months were housed in an UVB free environment and fed hay and a vitD-free concentrate over a period of 13 wk...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28822372/midgut-volvulus-in-adults-with-congenital-intestinal-malrotation
#11
Kayla Smith, Patricia Martinez-Quinones, Michael Hawkins
No abstract text is available yet for this article.
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822338/in-vitro-bioaccessibility-and-health-risk-assessment-of-heavy-metals-in-atmospheric-particulate-matters-from-three-different-functional-areas-of-shanghai-china
#12
Huang Huang, Ying Jiang, Xiaoyun Xu, Xinde Cao
The bioaccessibility and human health risks of heavy metals in PM2.5 and PM10 samples from three functional areas of Shanghai, China including a commercial area (CA), a residential area (RA), and an industrial area (IA), were investigated. Gamble's solution and physiologically based extraction test were employed to simulate human respiratory and digestive system, respectively. Both PM2.5 and PM10 concentration in the three areas exceeded the guideline of WHO, and followed the order of IA>CA≈RA. Zinc and Pb were the most abundant metals with a concentration range of 0...
August 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822218/locally-produced-xenin-and-the-neurotensinergic-system-in-pancreatic-islet-function-and-%C3%AE-cell-survival
#13
Dawood Khan, Srividya Vasu, R Charlotte Moffett, Victor A Gault, Peter R Flatt, Nigel Irwin
Modulation of neuropeptide receptors is important for pancreatic β-cell function. Here, islet distribution and effects of the neurotensin (NT) receptor modulators, xenin and NT, was examined. Xenin, but not NT, significantly improved glucose disposal and insulin secretion, in mice. However, both peptides stimulated insulin secretion from rodent β-cells at 5.6 mM glucose, with xenin having similar insulinotropic actions at 16.7 mM glucose. In contrast, NT inhibited glucose-induced insulin secretion. Similar observations were made in human 1...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28822177/-berberine-regulates-type-2-diabetes-mellitus-related-with-insulin-resistance
#14
REVIEW
Cheng Li, Jin-Zhi He, Xue-Dong Zhou, Xin Xu
Insulin resistance (IR) is defined as a series of clinical manifestations for diminished effectiveness of insulin in lowering blood sugar levels caused by decreased sensitivity to insulin of liver, muscle and adipose tissue. IR is the major contributor to the etiology and pathogenesis of type 2 diabetes mellitus (T2DM). Berberine, a traditional Chinese herb extract, has been shown to be safe and effective in lowering blood sugar, alleviating insulin resistance and moderating type 2 diabetes mellitus and its complications...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822161/-synergistic-mechanism-of-traditional-chinese-medicine-based-on-target-combination-of-pept1-and-ppar%C3%AE
#15
Lian-Sheng Qiao, Yan-Kun Chen, Gang-Gang Luo, Fang Lu, Si-Jia Liu, Gong-Yu Li, Yan-Ling Zhang
Synergistic effect is main pharmacological mechanism of traditional Chinese medicine(TCM). The research method based on the key targets combination is an important method to explore the synergistic effect of TCM. Peptide transporter 1 (PepT1) is an essential target for drug uptake into the bloodstream, accounting for about 50% of the total transporter protein content from the small intestine. Peroxisome proliferator-activated receptor α(PPARα) is the lipid-lowering target of fibrates, which have a good hypolipidemic effect by activating PPARα...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822029/gene-structure-and-comparative-and-phylogenetic-analyses-of-catla-catla-cyp1a-full-length-cdna-and-its-responsiveness-to-benzo-a-pyrene-and-copper-sulphate-at-early-developmental-stages
#16
Kavita Kumari, Gireesh-Babu Pathakota, Shivendra Kumar, Gopal Krishna
In the present study, full-length CYP1A cDNA from Catla catla (Catla) has been identified, and its real-time quantitative reverse transcription PCR (qRT-PCR) expression has been evaluated in different tissues, developmental stages (0, 3, 6, 12 and 24 h and 5, 7 and 9 days post-fertilization) and copper sulphate and benzo(a)pyrene (BaP)-treated 5-day post-fertilization (dpf) larvae (6 to 6.5 mm). Various structural, comparative and phylogenetic analyses of the deduced amino acid sequence revealed that the identified gene of Catla belongs to the CYP1A1 subfamily...
August 19, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28821741/predicting-the-murine-enterocyte-metabolic-response-to-diets-that-differ-in-lipid-and-carbohydrate-composition
#17
Neeraj Sinha, Maria Suarez-Diez, Evert M van Schothorst, Jaap Keijer, Vitor A P Martins Dos Santos, Guido J E J Hooiveld
The small intestine serves as gatekeeper at the interface between body and diet and is thought to play an important role in the etiology of obesity and associated metabolic disorders. A computational modelling approach was used to improve our understanding of the metabolic responses of epithelial cells to different diets. A constraint based, mouse-specific enterocyte metabolic model (named mmu_ENT717) was constructed to describe the impact of four fully characterized semi-purified diets, that differed in lipid and carbohydrate composition, on uptake, metabolism, as well as secretion of carbohydrates and lipids...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821731/stability-in-metabolic-phenotypes-and-inferred-metagenome-profiles-before-the-onset-of-colitis-induced-inflammation
#18
M Glymenaki, A Barnes, S O' Hagan, G Warhurst, A J McBain, I D Wilson, D B Kell, K J Else, S M Cruickshank
Inflammatory bowel disease (IBD) is associated with altered microbiota composition and metabolism, but it is unclear whether these changes precede inflammation or are the result of it since current studies have mainly focused on changes after the onset of disease. We previously showed differences in mucus gut microbiota composition preceded colitis-induced inflammation and stool microbial differences only became apparent at colitis onset. In the present study, we aimed to investigate whether microbial dysbiosis was associated with differences in both predicted microbial gene content and endogenous metabolite profiles...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821723/structural-and-developmental-expression-of-ss-riok-2-an-rio-protein-kinase-encoding-gene-of-strongyloides-stercoralis
#19
Wei-Qiang Lei, James B Lok, Wang Yuan, Yue-Zhou Zhang, Jonathan D Stoltzfus, Robin B Gasser, Si-Yuan He, Huan Zhou, Rui Zhou, Jun-Long Zhao, Min Hu
RIO kinases are essential atypical protein kinases in diverse prokaryotic and eukaryotic organisms, playing significant roles in yeast and humans. However, little is known about their functions in parasitic nematodes. In the present study, we have isolated and characterized the full-length cDNA, gDNA and a putative promoter of a RIOK-2 protein kinase (Ss-RIOK-2) encoding gene (Ss-riok-2) from Strongyloides stercoralis, a medically important parasitic nematode (Order Rhabditida). A three-dimensional structure (3D) model of Ss-RIOK-2 was generated using the Chaetomium thermophilum RIOK-2 protein kinase (Ct-RIOK-2) crystal structure 4GYG as a template...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821663/agrp-neurons-can-increase-food-intake-during-conditions-of-appetite-suppression-and-inhibit-anorexigenic-parabrachial-neurons
#20
Rachel A Essner, Alison G Smith, Adam A Jamnik, Anna R Ryba, Zoe D Trutner, Matthew E Carter
To maintain energy homeostasis, orexigenic (appetite-inducing) and anorexigenic (appetite suppressing) brain systems functionally interact to regulate food intake. Within the hypothalamus, neurons that express agouti-related protein (AgRP) sense orexigenic factors and orchestrate an increase in food-seeking behavior. In contrast, calcitonin gene-related peptide (CGRP)-expressing neurons in the parabrachial nucleus (PBN) suppress feeding. PBN CGRP neurons become active in response to anorexigenic hormones released following a meal, including amylin, secreted by the pancreas, and cholecystokinin (CCK), secreted by the small intestine...
August 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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