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https://www.readbyqxmd.com/read/29156563/wnt-inhibitory-activity-of-malus-pumila-miller-cv-annurca-and-malus-domestica-cv-limoncella-apple-extracts-on-human-colon-rectal-cells-carrying-familial-adenomatous-polyposis-mutations
#1
Gennaro Riccio, Maria Maisto, Sara Bottone, Nadia Badolati, Giovanni Battista Rossi, Gian Carlo Tenore, Mariano Stornaiuolo, Ettore Novellino
Inhibitors of the Wingless-related Integration site (WNT)/β-catenin pathway have recently been under consideration as potential chemopreventive agents against Familial Adenomatous Polyposis (FAP). This autosomal-dominant syndrome is caused by germline mutations in the gene coding for the protein APC and leads to hyperactivation of the WNT/β-catenin signaling pathway, uncontrolled intestinal cell proliferation and formation of adenocarcinomas. The aim of the present work was to: (i) test, on in vitro cultures of cells carrying FAP mutations and on ex vivo biopsies of FAP patients, the WNT inhibitory activity of extracts from two common southern Italian apples, Malus pumila Miller cv...
November 18, 2017: Nutrients
https://www.readbyqxmd.com/read/29156489/an-adherent-mucus-layer-attenuates-the-genotoxic-effect-of-colibactin
#2
Christian Reuter, Mona Alzheimer, Heike Walles, Tobias A Oelschlaeger
The human gastrointestinal tract is a complex ecosystem in which epithelial cells and microorganisms of the intestinal microbiota live in symbiosis. Certain members of the microbiota, in particular Escherichia coli strains of the B2 phylotype, carry the polyketide synthase (pks)-island encoding the genotoxin colibactin. Colibactin is a non-ribosomal peptide (NRP) or polyketide (PK)-NRP hybrid of still unsolved structure, which induces DNA double strand breaks (DSBs) in eukaryotic cells. However, direct contact between live bacteria and host cell is required in order to elicit these genotoxic effects...
November 20, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/29156449/nutrition-in-the-management-of-gastrointestinal-diseases-and-disorders-the-evidence-for-the-low-fodmap-diet
#3
REVIEW
Shanti Eswaran, Jeremy P Farida, Jessica Green, Jesse D Miller, William D Chey
A growing interest from both physicians and patients is fueling research in the interaction of symptoms related to irritable bowel syndrome (IBS) and diet, particularly the low FODMAP diet. Recent studies further define the role of these short-chain fermentable carbohydrates on IBS symptoms and their effects in different parts of the gastrointestinal tract. Mounting evidence supports the use of a low FODMAP diet in the clinical setting, but this dietary approach is not without potential drawbacks. This review illustrates the mechanisms by which the low FODMAP diet leads to improvement in IBS symptoms, summarizes the available clinical evidence, and offers practical advice regarding implementation of this dietary strategy...
November 17, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29156431/pathway-of-oxfendazole-from-the-host-into-the-worm-trichuris-suis-in-pigs
#4
Tina V A Hansen, Andrew R Williams, Matthew Denwood, Peter Nejsum, Stig M Thamsborg, Christian Friis
It is well known that the efficacy of a single oral dose of benzimidazoles against Trichuris spp. infections in humans and animals is poor, but is currently still used in control programmes against human trichuriasis. However, the route of the benzimidazoles from the treated host to Trichuris remains unknown. As parts of adult Trichuris are situated intracellularly in the caecum, they might be exposed to anthelmintic drugs in the intestinal content as well as the mucosa. In this study, the pathway of oxfendazole and its metabolites was explored using a T...
November 9, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29155256/role-of-toll-like-receptors-in-inflammatory-bowel-disease
#5
REVIEW
Nastaran Kordjazy, Arvin Haj-Mirzaian, Arya Haj-Mirzaian, Mohammad Mojtaba Rohani, Erwin W Gelfand, Nima Rezaei, Amir Hossein Abdolghaffari
Inflammatory bowel disease (IBD) is the chronic inflammation of the gastrointestinal tract. Recently, studies of the interplay between the adaptive and innate immune responses have provided a better understanding of the immunopathogenesis of inflammatory disorders such as IBD, as well as identification of novel targets for more potent interventions. Toll-like receptors (TLRs) are a class of proteins that play a significant role in the innate immune system and are involved in inflammatory processes. Activation of TLR signal transduction pathways lead to the induction of numerous genes that function in host defense, including those for inflammatory cytokines, chemokines, and antigen presenting molecules...
November 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29154473/influences-of-quorum-quenching-probiotic-bacteria-on-the-gut-microbial-community-and-immune-function-in-weaning-pigs
#6
Jonggun Kim, Jaepil Kim, Younghoon Kim, Sangnam Oh, Minho Song, Jee Hwan Choe, Kwang-Youn Whang, Kwang Hyun Kim, Sejong Oh
The aim of this study is to investigate the dynamic gut microbial diversity in weaning swine after administering feed supplemented with probiotic bacteria that specifically inhibit the activity of quorum molecules. Initially, the universal quorum molecule autoinducer-2 (AI-2) bioassay results indicated that AI-2 activity was profoundly inhibited in enterohemorrhagic Escherichia coli (EHEC) O157:H7 in the presence of Lactobacillus acidophilus strain 30SC cell extract, although the growth of EHEC was not affected...
November 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29152990/gastroduodenal-lesions-detected-during-small-bowel-capsule-endoscopy-incidence-diagnostic-and-therapeutic-impact
#7
José Francisco Juanmartiñena Fernández, Ignacio Fernández-Urien Sainz, Beatriz Zabalza Ollo, Cristina Saldaña Dueñas, Marta Montañés Guimera, Alfonso Elosua González, Juan José Vila Costas
BACKGROUND: Capsule endoscopy was primarily designed for the investigation of the small bowel. However, it may also identify lesions in other segments of the gastrointestinal tract. The aim of the current study was to evaluate the incidence of gastroduodenal abnormalities during small bowel capsule endoscopy and its impact on patient diagnosis and management. PATIENTS AND METHODS: This study is a retrospective analysis of data from 2,217 consecutive capsule endoscopy procedures performed at a single tertiary-care center between January 2008 and February 2016...
November 20, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/29152710/the-black-box-revelation-monitoring-gastrointestinal-function
#8
Pieter-Jan Moonen, Annika Reintam Blaser, Joel Starkopf, Heleen M Oudemans-van Straaten, Jan Van der Mullen, Griet Vermeulen, Manu L N G Malbrain
The gastrointestinal tract comprises diverse functions. Despite recent developments in technology and science, there is no single and universal tool to monitor GI function in intensive care unit (ICU) patients. Clinical evaluation is complex and has a low sensitivity to diagnose pathological processes in the abdomen. We performed a MEDLINE and Pubmed search connecting abdominal assessment and critical care. Based on these findings we defined the following major categories of monitoring and diagnostic measures: clinical investigation; assessment of motility and digestive function; microbiome monitoring; perfusion monitoring; laboratory biomarkers and hormonal function; intra-abdominal pressure measurement; and imaging techniques...
November 20, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29152603/investigation-into-the-fungal-diversity-within-different-regions-of-the-gastrointestinal-tract-of-panaque-nigrolineatus-a-wood-eating-fish
#9
Caroline L Marden, Ryan McDonald, Harold J Schreier, Joy E M Watts
The Amazonian catfish, Panaque nigrolineatus have several physiological adaptions enabling the scraping and consumption of wood (xylivory), facilitating a detritivorous dietary strategy. Composed of lignocellulose, wood is a difficult substrate to degrade and as yet, it is unclear whether the fish obtains any direct nutritional benefits from wood ingestion and degradation. However, there are numerous systems that rely on microbial symbioses to provide energy and other nutritional benefits for host organisms via lignocellulose decomposition...
2017: AIMS Microbiology
https://www.readbyqxmd.com/read/29152574/human-intestinal-tract-serves-as-an-alternative-infection-route-for-middle-east-respiratory-syndrome-coronavirus
#10
Jie Zhou, Cun Li, Guangyu Zhao, Hin Chu, Dong Wang, Helen Hoi-Ning Yan, Vincent Kwok-Man Poon, Lei Wen, Bosco Ho-Yin Wong, Xiaoyu Zhao, Man Chun Chiu, Dong Yang, Yixin Wang, Rex K H Au-Yeung, Ivy Hau-Yee Chan, Shihui Sun, Jasper Fuk-Woo Chan, Kelvin Kai-Wang To, Ziad A Memish, Victor M Corman, Christian Drosten, Ivan Fan-Ngai Hung, Yusen Zhou, Suet Yi Leung, Kwok-Yung Yuen
Middle East respiratory syndrome coronavirus (MERS-CoV) has caused human respiratory infections with a high case fatality rate since 2012. However, the mode of virus transmission is not well understood. The findings of epidemiological and virological studies prompted us to hypothesize that the human gastrointestinal tract could serve as an alternative route to acquire MERS-CoV infection. We demonstrated that human primary intestinal epithelial cells, small intestine explants, and intestinal organoids were highly susceptible to MERS-CoV and can sustain robust viral replication...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29152299/gastrointestinal-stromal-tumor-an-incidental-finding-during-laparoscopic-bariatric-surgery
#11
Shireesh Saurabh
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor of the gastrointestinal tract. Lack of clinical symptoms and findings on preoperative upper endoscopy makes its diagnosis difficult in bariatric patients. A laparoscopic resection of the gastric GIST during bariatric surgery is associated with good long-term prognosis.
November 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29152251/oxygen-the-forgotten-nutrient
#12
Paul Trayhurn
O2 is essential for the maintenance and growth of aerobic animals, similar to the essentiality of what are classically considered nutrients. Nevertheless, O2 is not customarily regarded as a nutrient, this reflecting the route by which it enters the body - through the lungs or gills in vertebrates, rather than via the mouth and gastrointestinal tract. A relative deficiency of O2 occurs at high altitudes and during deep-sea diving, to which distinct adaptations occur. Deficiency is also evident in lung diseases such as emphysema...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152215/ozone-therapy-an-overview-of-pharmacodynamics-current-research-and-clinical-utility
#13
REVIEW
Noel L Smith, Anthony L Wilson, Jason Gandhi, Sohrab Vatsia, Sardar Ali Khan
The use of ozone (O3) gas as a therapy in alternative medicine has attracted skepticism due to its unstable molecular structure. However, copious volumes of research have provided evidence that O3's dynamic resonance structures facilitate physiological interactions useful in treating a myriad of pathologies. Specifically, O3 therapy induces moderate oxidative stress when interacting with lipids. This interaction increases endogenous production of antioxidants, local perfusion, and oxygen delivery, as well as enhances immune responses...
July 2017: Medical Gas Research
https://www.readbyqxmd.com/read/29151828/simulating-colonic-survival-of-probiotics-in-single-strain-products-compared-to-multi-strain-products
#14
S D Forssten, A C Ouwehand
Background: Probiotic formulations can be single- or multi-strain. Commercially, multi-strain preparations have been suggested to have improved functionality over single-strain cultures. Probiotics are often tested as single-strain preparations but may subsequently be commercially formulated as multi-strain products. Objective: The aim of this study was to determine what happens at the site of action, the intestine, with probiotics as single- compared to multi-strain preparations. The human gastrointestinal tract contains a broad mixture of different microbes which may affect the survival of different probiotics in different ways...
2017: Microbial Ecology in Health and Disease
https://www.readbyqxmd.com/read/29151783/gastric-microbiota-tracing-the-culprit
#15
REVIEW
Cristian Vasile Petra, Aronel Rus, Dan Lucian Dumitraşcu
The gastric environment has been long time considered bacteria-free, but the discovery of Helicobacter pylori (H. pylori) in 1982 superseded this conception. Over the last decades new diagnostic methods have been developed, starting with culture-dependent and advancing to culture-independent ones. These modern techniques provide new insight into the composition and influence of this ecosystem on the entire gastrointestinal tract. H. pylori is no longer considered the only microorganism in the stomach, other non-H...
2017: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29151699/scoring-systems-for-peptic-ulcer-bleeding-which-one-to-use
#16
Ivan Budimir, Sanja Stojsavljević, Neven Baršić, Alen Bišćanin, Gorana Mirošević, Sven Bohnec, Lora Stanka Kirigin, Tajana Pavić, Neven Ljubičić
AIM: To compare the Glasgow-Blatchford score (GBS), Rockall score (RS) and Baylor bleeding score (BBS) in predicting clinical outcomes and need for interventions in patients with bleeding peptic ulcers. METHODS: Between January 2008 and December 2013, 1012 consecutive patients admitted with peptic ulcer bleeding (PUB) were prospectively followed. The pre-endoscopic RS, BBS and GBS, as well as the post-endoscopic diagnostic scores (RS and BBS) were calculated for all patients according to their urgent upper endoscopy findings...
November 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29151538/iron-deficiency-anemia-due-to-the-long-term-use-of-a-proton-pump-inhibitor
#17
Ryosuke Imai, Takakazu Higuchi, Masaya Morimoto, Ryosuke Koyamada, Sadamu Okada
A 52-year-old man who had been taking omeprazole, a proton pump inhibitor (PPI), for 25 years developed iron deficiency anemia. An evaluation of the entire gastrointestinal tract did not reveal any possible causes of gastrointestinal blood loss. The cause of the iron deficiency was considered to be a reduction in gastrointestinal iron absorption in association with the reduced secretion of gastric acid due to PPI use. This case demonstrates that long-term PPI use for as long as 25 years may cause iron deficiency anemia and should be considered in the differential diagnosis of iron deficiency anemia in long-term PPI users...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29149929/gastrointestinal-and-hepatic-disease-in-rheumatoid-arthritis
#18
REVIEW
Ethan Craig, Laura C Cappelli
Gastrointestinal (GI) manifestations of rheumatoid arthritis (RA) are rare, but can be impactful for patients. Some GI processes are directly related to RA, whereas others may be sequelae of treatment or caused by concomitant autoimmune diseases. This article discusses the role of the GI tract in RA pathogenesis; the presentation, epidemiology, and diagnosis of RA-related GI manifestations; concomitant GI autoimmune diseases that may affect those with RA; and GI side effects of RA treatment. The importance of appropriately considering conditions unrelated to RA in the differential diagnosis when evaluating new GI symptoms in patients with RA is noted...
February 2018: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/29149923/gastrointestinal-and-hepatic-disease-in-systemic-sclerosis
#19
REVIEW
Tracy M Frech, Diane Mar
Although classification criteria for systemic sclerosis (SSc) do not incorporate gastrointestinal tract (GIT) manifestations often present in this disease, the GIT is the most common internal organ involved. Pathophysiology of GIT involvement is thought to be similar to other organs in SSc with fibroproliferative vascular lesions of small arteries and arterioles, increased production of profibrotic growth factors, and alterations of innate, humoral, and cellular immunity. These processes result in neuropathy progressing to myopathy with eventual fibrosis...
February 2018: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/29149908/exosomal-micrornas-as-potential-circulating-biomarkers-in-gastrointestinal-tract-cancers-a-systematic-review-protocol
#20
Elmira Gheytanchi, Zahra Madjd, Leila Janani, Arezoo Rasti, Roya Ghods, Fatemeh Atyabi, Mohammad Hossein Asadi Lari, Sadegh Babashah
BACKGROUND: Metastasis is the most frequent type of recurrence in gastrointestinal (GI) cancers, and there is an emerging potential for new diagnostic and therapeutic approaches, especially in the cases of metastatic GI carcinomas. The expression profiles of circulating exosomal microRNAs are of particular interest as novel non-invasive diagnostic and prognostic biomarkers for improved detection of GI cancers in body fluids, especially in the serum of patients with recurrent cancers. The aim of this study is to systematically review primary studies and identify the miRNA profiles of serum exosomes of GI cancers...
November 17, 2017: Systematic Reviews
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