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https://www.readbyqxmd.com/read/28188734/mixing-and-pumping-functions-of-the-intestine-of-zebrafish-larvae
#1
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/28167596/epidemiology-and-prevalence-of-blastocystis-spp-in-north-cyprus
#2
Ayse Seyer, Djursun Karasartova, Emrah Ruh, Ayse Semra Güreser, Ebru Turgal, Turgut Imir, Aysegul Taylan Ozkan
This study was conducted to investigate the prevalence of Blastocystis spp. and its subtypes (STs) in North Cyprus; and to evaluate the presence of this parasite and its STs with respect to demographic, socioeconomic, and epidemiological factors, as well as gastrointestinal symptoms. Stool samples were collected from 230 volunteers. Each participant also filled out a questionnaire. The samples were examined microscopically by native-Lugol and trichrome methods and further tested by polymerase chain reaction (PCR) and sequencing...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28155242/sensory-neuron-regulation-of-gastrointestinal-inflammation-and-bacterial-host-defence
#3
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/28149496/pseudomoniasis-phytotherapy-a-review-on-most-important-iranian-medicinal-plants-effective-on-pseudomonas-aeruginosa
#4
REVIEW
Mahmoud Bahmani, Mahmoud Rafieian-Kopaei, Hassan Hassanzadazar, Morovat Taherikalani
BACKGROUND AND OBJECTIVES: Pseudomonas aeruginosa is a Gram-negative, aerobic bacterium found in water and soil. It is a normal flora in skin and gastrointestinal tract of human beings. P. aeruginosa as an opportunistic pathogen involved in nosocomial infections having multiple pathogenic factors and shows high rate of resistance to different antibiotics. The aim of this study was to identify the most important native medicinal plants of Iran effective on P. aeruginosa. MATERIALS AND METHODS: All required information was obtained by searching keywords such as P...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28141547/efficacy-of-and-potential-morbidities-associated-with-the-use-of-antacid-medications-in-preterm-neonates
#5
Uday P Patil, Sean M Bailey, Elena V Wachtel, Evan Orosz, Rebecca Zarchin, Pradeep V Mally
OBJECTIVES: Antacid medications are frequently administered to preterm infants. These medications can change gastric pH levels and can affect regular gastrointestinal function and gut micro-bacterial flora. We hypothesized that preterm infants exposed to antacid medications are at a greater risk of necrotizing enterocolitis (NEC) and sepsis, and set out to determine any association, as well as to assess the clinical efficacy of these medications. MATERIALS AND METHODS: Retrospective chart review of preterm infants ≤30 weeks' gestational age or birth weight ≤1250 g over a 2-year period at New York University Langone Medical Center...
January 31, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28131326/clostridium-difficile-colitis-a-clinical-review
#6
Gabie K B Ong, Tobi J Reidy, Matthew D Huk, Frederick R Lane
BACKGROUND: Clostridium difficile colitis is an important cause of morbidity and mortality in the surgical patient. In recent years, Clostridium difficile infections have shown marked increases in frequency, severity, and resistance to standard treatment. With urgent operative interventions and novel endoscopic approaches, pseudomembranous colitis is being seen more commonly in surgical practices. DATA SOURCES: In this paper, we will review a number of papers from the literature...
January 3, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28104104/role-of-gastrointestinal-microbiota-on-kidney-injury-and-the-obese-condition
#7
REVIEW
Keerati Wanchai, Anchalee Pongchaidecha, Varanuj Chatsudthipong, Siriporn C Chattipakorn, Nipon Chattipakorn, Anusorn Lungkaphin
Obesity is associated with kidney disease, probably due to obesity-mediated inflammation, podocyte injury and oxidative stress in the kidney It is also linked to other diseases, for example, diabetes and hypertension, which are associated with the development and progression of chronic kidney disease. Interestingly, gastrointestinal dysbiosis has been demonstrated in cases of obesity with the development and progression of kidney disease. Thus, modification of gastrointestinal microbiota using probiotics or prebiotics or both to improve the balance of bacterial flora is a potential approach for the management of obesity-associated kidney disease...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28100999/colorectal-cancer-associated-with-streptococcus-anginosus-bacteremia-and-liver-abscesses
#8
Umair Masood, Anuj Sharma, Dhruv Lowe, Rashad Khan, Divey Manocha
Streptococcus anginosus is part of the normal flora of the human gastrointestinal tract. Their ability to cause abscesses is very unique and sets them apart from the rest of the streptococci groups. While an association of group D streptococcus bacteremia and endocarditis with colorectal carcinoma is well established, S. anginosus infections are rarely implicated with colonic malignancy. We present a case of a 62-year-old male who presented to the hospital with fatigue and generalized abdominal pain. Computed tomography of the abdomen revealed multiple liver abscesses and rectal thickening...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28092098/evaluation-the-ethnopharmacological-studies-in-iran-during-2004-2016-a-systematic-review
#9
REVIEW
Zahra Sadeghi, Maryam Akaberi, Seyed Ahmad Emami, Alireza Sobhkhizi, Amirhossein Sahebkar
Although Iran has a deep history in herbal medicine and great heritage of ancient medical scholars, few efforts have been made to evaluate ethnopharmacological aspects of medicinal plants in this country. In the present study, the authors have reviewed all important literature about the ethnopharmacological investigations on medicinal plants used in the last decade in Iran. All provinces of Iran were categorized according to a phytogeographical division. Information was collected through bibliographic investigations from scientific journals and books...
January 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28074309/helicobacter-pylori-induced-premature-senescence-of-extragastric-cells-may-contribute-to-chronic-skin-diseases
#10
Anna Lewinska, Maciej Wnuk
Helicobacter pylori, one of the most frequently observed bacterium in the human intestinal flora, has been widely studied since Marshall and Warren documented a link between the presence of H. pylori in the gastrointestinal tract and gastritis and gastric ulcers. Interestingly, H. pylori has also been found in several other epithelial tissues, including the eyes, ears, nose and skin that may have direct or indirect effects on host physiology and may contribute to extragastric diseases, e.g. chronic skin diseases...
January 10, 2017: Biogerontology
https://www.readbyqxmd.com/read/28028528/the-comparison-of-treatments-with-and-without-azithromycin-in-irritable-bowel-syndrome-with-diarrhea-predominant-in-gastrointestinal-clinic-of-al-zahra-hospital-isfahan-iran
#11
Mohamadreza Yazdani, Amirhossein Aramesh, Rahmatollah Rafiei, Hamed Daghaghzadeh, Peyman Adibi
BACKGROUND: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder. Recent studies suggest the importance of gut flora in the pathophysiology of it. Therefore, antibiotics have demonstrated a substantial benefit to reduce gut flora. Having few side effects, and applying one-dose per day, we studied the effect of azithromycin to treat IBS. MATERIALS AND METHODS: One hundred and twenty-six patients enrolled a randomized, double-blind, placebo-controlled study...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28009107/detection-of-salmonella-enterica-serovar-montevideo-and-newport-in-free-ranging-sea-turtles-and-beach-sand-in-the-caribbean-and-persistence-in-sand-and-seawater-microcosms
#12
A-K Ives, E Antaki, K Stewart, S Francis, M T Jay-Russell, F Sithole, M T Kearney, M J Griffin, E Soto
Salmonellae are Gram-negative zoonotic bacteria that are frequently part of the normal reptilian gastrointestinal flora. The main objective of this project was to estimate the prevalence of non-typhoidal Salmonella enterica in the nesting and foraging populations of sea turtles on St. Kitts and in sand from known nesting beaches. Results suggest a higher prevalence of Salmonella in nesting leatherback sea turtles compared with foraging green and hawksbill sea turtles. Salmonella was cultured from 2/9 and identified by molecular diagnostic methods in 3/9 leatherback sea turtle samples...
December 23, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28008786/a-probiotic-combination-attenuates-experimental-colitis-through-inhibition-of-innate-cytokine-production
#13
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
https://www.readbyqxmd.com/read/27976409/oral-drug-absorption-in-pediatrics-the-intestinal-wall-its-developmental-changes-and-current-tools-for-predictions
#14
REVIEW
Jean-Marie Nicolas, François Bouzom, Hugues Chanteux, Anna-Lena Ungell
The dissolution, intestinal absorption and presystemic metabolism of a drug depend on its physicochemical characteristics but also on numerous physiological (e.g. gastrointestinal pH, volume, transit time, morphology) and biochemical factors (e.g. luminal enzymes and flora, intestinal wall enzymes and transporters). Over the last decade, evidence has accumulated indicating that these factors may differ in children and adults resulting in age-related changes in drug exposure and drug response. Thus, drug dosage may require adjustment for the pediatric population to ensure the desired therapeutic outcome and to avoid side-effects...
December 15, 2016: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/27940405/dietary-and-enteral-interventions-for-crohn-s-disease
#15
REVIEW
Takayuki Yamamoto, Takahiro Shimoyama, Moeko Kuriyama
It is now widely acknowledged that the intestinal bacterial flora together with genetic predisposing factors significantly contribute to the immunopathogenesis of inflammatory bowel disease (IBD) as reflected by mucosal immune dysregulation. Recently, there has been an increased interest in nutraceutical therapies, including probiotics, prebiotics and synbiotics. Other dietary interventions with low carbohydrate diet, omega-3 polyunsaturated fatty acids and glutamine have been attempted to downregulate the gut inflammatory response and thereby alleviate gastrointestinal symptoms...
December 8, 2016: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/27931081/presence-and-distribution-of-yeasts-in-the-reproductive-tract-of-healthy-female-horses
#16
A Azarvandi, A R Khosravi, H Shokri, M Talebkhan Garoussi, F Gharahgouzlou, G Vahedi, A Sharifzadeh
BACKGROUND: Yeasts are commensal organisms found in the reproductive and gastrointestinal tracts, and on the skin and other mucosa in mammals. OBJECTIVES: The purpose of this study was to isolate and identify the yeast flora in the caudal reproductive tract of healthy female horses. STUDY DESIGN: Longitudinal study. METHODS: A total of 453 samples were collected using double guarded swabs from the vestibule, clitoral fossa and vagina of 151 horses...
December 8, 2016: Equine Veterinary Journal
https://www.readbyqxmd.com/read/27929072/antimicrobial-growth-promoters-modulate-host-responses-in-mice-with-a-defined-intestinal-microbiota
#17
Kirsty Brown, Sarah J M Zaytsoff, Richard R E Uwiera, G Douglas Inglis
Antibiotics can promote growth in livestock (antimicrobial growth promoters, AGPs), however lack of knowledge regarding mechanisms has hampered the development of effective non-antibiotic alternatives. Antibiotics affect eukaryotic cells at therapeutic concentrations, yet effects of AGPs on host physiology are relatively understudied, partially due to the complexity of host-microorganism interactions within the gastrointestinal tract. To determine the direct effects of AGPs on the host, we generated Altered Schaedler Flora (ASF) mice, and administered chlortetracycline (CTC) and tylosin phosphate (TYL) in feed...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27913544/treatment-of-rare-factor-deficiencies-in-2016
#18
Flora Peyvandi, Marzia Menegatti
Rare bleeding disorders (RBDs) are a heterogeneous group of coagulation disorders characterized by fibrinogen, prothrombin, factors V, VII, X, XI, or XIII (FV, FVII, FX, FXI, or FXIII, respectively), and the combined factor V + VIII and vitamin K-dependent proteins deficiencies, representing roughly 5% of all bleeding disorders. They are usually transmitted as autosomal, recessive disorders, and the prevalence of the severe forms could range from 1 case in 500 000 for FVII up to 1 in 2-3 million for FXIII in the general population...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913498/long-term-risk-of-second-malignancy-and-cardiovascular-disease-after-hodgkin-lymphoma-treatment
#19
Flora E van Leeuwen, Andrea K Ng
Long-term survivors of Hodgkin lymphoma (HL) experience several late adverse effects of treatment, with second malignant neoplasms (SMNs) and cardiovascular diseases (CVDs) being the leading causes of death in these patients. Other late effects have also been identified, such as pulmonary dysfunction, endocrinopathies (thyroid dysfunction, infertility), neck muscle atrophy, and persistent fatigue. HL survivors have two- to fourfold increased risks to develop SMNs and CVD compared with the general population...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27912797/helminth-infections-and-gut-microbiota-a-feline-perspective
#20
Ana M Duarte, Timothy P Jenkins, Maria S Latrofa, Alessio Giannelli, Elias Papadopoulos, Luís Madeira de Carvalho, Matthew J Nolan, Domenico Otranto, Cinzia Cantacessi
BACKGROUND: Investigations of the relationships between the gut microbiota and gastrointestinal parasitic nematodes are attracting growing interest by the scientific community, driven by the need to better understand the contribution of parasite-associated changes in the composition of the gut flora to both host malnutrition and immune modulation. These studies have however been carried out mainly in humans and experimental animals, while knowledge of the make-up of the gut commensal flora in presence or absence of infection by parasitic nematodes in domestic animals is limited...
December 3, 2016: Parasites & Vectors
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