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https://www.readbyqxmd.com/read/28432691/tenapanor-administration-and-the-activity-of-the-h-coupled-transporter-pept1-in-healthy-volunteers
#1
Susanne Johansson, David P Rosenbaum, Johan Palm, Bergur Stefansson, Mikael Knutsson, Eleanor A Lisbon, Constanze Hilgendorf
AIM: Tenapanor (RDX5791/AZD1722), an inhibitor of gastrointestinal Na(+) /H(+) exchanger NHE3, is being evaluated for the treatment of patients with constipation-predominant irritable bowel syndrome and the treatment of hyperphosphataemia in patients with chronic kidney disease on dialysis. By reducing intestinal H(+) secretion, inhibition of NHE3 by tenapanor could indirectly affect H(+) -coupled transporter activity, leading to drug-drug interactions. We investigated the effect of tenapanor on the activity of the H(+) -coupled peptide transporter PepT1 via assessment of the pharmacokinetics of cefadroxil - a compound transported by PepT1 - in healthy volunteers...
April 22, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28426464/comparative-effectiveness-in-urology-a-state-of-the-art-review-utilizing-a-systematic-approach
#2
Jathin Bandari, Charles B Wessel, Bruce L Jacobs
PURPOSE OF REVIEW: Comparative effectiveness research plays a vital role in healthcare delivery by guiding evidence-based practices. We performed a state-of-the-art review of comparative effectiveness research in the urology literature for 2016, utilizing a systematic approach. Seven high-impact papers are reviewed in detail. RECENT FINDINGS: Across the breadth of urology, there were several important studies in comparative effectiveness research, of which we will highlight two randomized controlled trials and five observational trials: radiotherapy, prostatectomy, and active monitoring have equivalent mortality outcomes in patients with localized prostate cancer; the ideal modality of patient education is yet to be determined, and written education has minimal effect on patient perception of prostate specific antigen screening; robotic prostatectomy is associated with higher perioperative complication rates on a population basis; racial disparities exist in incontinence rates after treatment for localized prostate cancer, but not in irritative, bowel, or sexual function; androgen deprivation therapy is associated with higher fracture, peripheral artery disease, and cardiac-related complications than bilateral orchiectomy; robotic and open cystectomy offer comparable cancer-specific mortality and perioperative outcomes; and bonuses for low-cost hospitals can inadvertently reward low-quality hospitals...
April 19, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28425193/health-related-quality-of-life-outcomes-from-a-contemporary-prostate-cancer-registry-in-a-large-diverse-population
#3
Gary W Chien, Jeff M Slezak, Teresa N Harrison, Howard Jung, Joy S Gelfond, Chengyi Zhang, Edward Wu, Richard Contreras, Ronald K Loo, Steven J Jacobsen
OBJECTIVE: To assess the health-related quality of life (HRQoL) of patients with prostate cancer up to 24 months after treatment in a contemporary large diverse population. PATIENTS AND METHODS: Patients with newly diagnosed prostate cancer from March 2011 to January 2014 in our healthcare system were included. The Expanded Prostate Cancer Index Composite (EPIC-26) questionnaire was administered before treatment, and at 1, 3, 6, 12, 18, and 24 months after treatment up to November 2014 for all methods of treatment...
April 19, 2017: BJU International
https://www.readbyqxmd.com/read/28424994/modulation-of-gastrointestinal-motility-beyond-metoclopramide-and-domperidone-pharmacological-and-clinical-evidence-for-phytotherapy-in-functional-gastrointestinal-disorders
#4
Ahmed Madisch, Bettina R Vinson, Heba Abdel-Aziz, Olaf Kelber, Karen Nieber, Karin Kraft, Martin Storr
The prokinetic cisapride, an important therapeutic option in functional gastrointestinal (GI) disorders, was withdrawn from the market 15 years ago due to rare severe side effects. Likewise in 2014, the use of metoclopramide (MCP) and domperidone in functional GI disorders (FGID) was restricted, consequently leaving a therapeutic gap in clinical practice. A systematic review revealed that the herbal medicinal product (HMP) STW 5 presents a therapeutic option equivalent to MCP and cisapride. STW 5 is the only HMP for which efficacy has been shown in randomized controlled clinical trials (RCTs) in functional dyspepsia and irritable bowel syndrome, based on its multitarget effect on numerous etiological factors...
April 19, 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28422780/understanding-the-gut-microbiota-in-inflammatory-and-functional-gastrointestinal-diseases
#5
Johanna Sundin, Lena Öhman, Magnus Simren
OBJECTIVE: During the last decade experimental and observational studies have shown that patients with Inflammatory Bowel Disease (IBD) and Irritable Bowel Syndrome (IBS) may have an altered intestinal microbial composition compared to healthy subjects. However, no uniform microbial signature has as yet been detected for either IBD or IBS. This review summarizes the current knowledge of microbial dysbiosis, and its potential relationship to the pathophysiology in IBD and IBS. METHODS: A selective review was conducted to summarize the current knowledge of gut microbiota in the pathophysiology of IBD and IBS...
April 18, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28421381/lactase-non-persistence-and-lactose-intolerance
#6
REVIEW
Theodore M Bayless, Elizabeth Brown, David M Paige
PURPOSE OF REVIEW: To evaluate the clinical and nutritional significance of genetically determined lactase non-persistence and potential lactose and milk intolerance in 65-70% of the world's adult population. RECENT FINDINGS: Milk consumption is decreasing in the USA and is the lowest in countries with a high prevalence of lactase non-persistence. The dairy industry and Minnesota investigators have made efforts to minimize the influence of lactose intolerance on milk consumption...
May 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28417992/eluxadoline-efficacy-in-ibs-d-patients-who-report-prior-loperamide-use
#7
Brian E Lacy, William D Chey, Brooks D Cash, Anthony J Lembo, Leonard S Dove, Paul S Covington
OBJECTIVES: Irritable bowel syndrome with diarrhea (IBS-D) is often managed with over-the-counter therapies such as loperamide, though with limited success. This analysis evaluated the efficacy of eluxadoline in patients previously treated with loperamide in two phase 3 studies. METHODS: Adults with IBS-D (Rome III criteria) were enrolled and randomized to placebo or eluxadoline (75 or 100 mg) twice daily for 26 (IBS-3002) or 52 (IBS-3001) weeks. Patients reported loperamide use over the previous year and recorded their rescue loperamide use during the studies...
April 18, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28417537/the-effects-and-mechanism-of-action-of-methane-on-ileal-motor-function
#8
Y M Park, Y J Lee, Z Hussain, Y H Lee, H Park
BACKGROUND: Methane has been associated with constipation-predominant irritable bowel syndrome, slowing intestinal transit time by augmenting contractile activity. However, the precise mechanism underlying this effect remains unclear. Therefore, we investigated the mechanisms underlying the effect of methane on contractile activity, and whether such effects are mediated by nerve impulses or muscular contraction. METHODS: We connected guinea pig ileal muscle strips to a force/tension transducer and measured amplitudes of contraction in response to electrical field stimulation (EFS; 1, 2, 8, 16 Hz) following methane infusion in the presence of tetradotoxin (TTX), atropine, guanethidine, or GR 113808...
April 18, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28414123/anti-factor-xa-activities-of-zingerone-with-anti-platelet-aggregation-activity
#9
Wonhwa Lee, Sae-Kwang Ku, Mi-Ae Kim, Jong-Sup Bae
Zingerone (ZGR), a phenolic alkanone found in Zingiber officinale, has been reported to have various pharmacological activities such as anti-inflammatory, anti-apoptotic, and protecting myocardial infarction and irritable bowel disorder. The aim was to identify the unreported bioactive anti-factor Xa (FXa) and anti-platelet activities of ZGR. ZGR was evaluated for their anti-FXa and anti-platelet aggregation properties by monitoring clotting time, platelet aggregation, FXa activity and production, and thrombus formation...
April 13, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28413456/role-of-stem-cell-growth-factor-c-kit-in-the-pathogenesis-of-irritable-bowel-syndrome
#10
Yuna Chai, Yusheng Huang, Hongmei Tang, Xing Tu, Jianbo He, Ting Wang, Qingye Zhang, Fen Xiong, Detang Li, Zhenwen Qiu
Irritable bowel syndrome (IBS) is a functional bowel disease with a complicated etiopathogenesis, often characterized by gastrointestinal motility disorder and high visceral sensitivity. IBS is a comprehensive multi-systemic disorder, with the interaction of multiple factors, such as mental stress, intestinal function and flora, heredity, resulting in the disease. The existence of a common mechanism underlying the aforementioned factors is currently unknown. The lack of therapies that comprehensively address the disease symptoms, including abdominal pain and diarrhea, is a limitation of current IBS management...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28410580/lactobacillus-casei-dg-and-its-postbiotic-reduce-the-inflammatory-mucosal-response-an-ex-vivo-organ-culture-model-of-post-infectious-irritable-bowel-syndrome
#11
Debora Compare, Alba Rocco, Pietro Coccoli, Debora Angrisani, Costantino Sgamato, Barbara Iovine, Umberto Salvatore, Gerardo Nardone
BACKGROUND: The evidence on the role of gut microbiota in post-infectious irritable bowel syndrome (PI-IBS) is convincing. Lactobacillus spp. positively affect IBS symptoms, although the mechanisms through which probiotics exert their beneficial effects are largely unknown. The aim of the study is to evaluate the role of Lactobacillus casei DG (LC-DG) and its postbiotic (PB) in modulating the inflammatory/immune-response in PI-IBS in an ex-vivo organ culture model. METHODS: Ex vivo cultures of ileal and colonic mucosa from 10 PI-IBS, diarrhea predominant subtype (D) patients, and 10 healthy controls (HC) were treated with LPS, LC-DG and PB...
April 14, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28410406/lubiprostone-improves-intestinal-permeability-in-humans-a-novel-therapy-for-the-leaky-gut-a-prospective-randomized-pilot-study-in-healthy-volunteers
#12
Takayuki Kato, Yasushi Honda, Yusuke Kurita, Akito Iwasaki, Takamitsu Sato, Takaomi Kessoku, Shiori Uchiyama, Yuji Ogawa, Hidenori Ohkubo, Takuma Higurashi, Takeharu Yamanaka, Haruki Usuda, Koichiro Wada, Atsushi Nakajima
BACKGROUND AND AIMS: The barrier function of the small intestinal mucosa prevents the introduction of undesired pathogens into the body. Breakdown of this barrier function increases intestinal permeability. This has been proposed to induce not only gastrointestinal diseases, including inflammatory bowel disease and irritable bowel syndrome, but also various other diseases, including allergies, diabetes mellitus, liver diseases, and collagen diseases, which are associated with this so called "leaky gut syndrome...
2017: PloS One
https://www.readbyqxmd.com/read/28408193/imipramine-versus-placebo-for-multiple-functional-somatic-syndromes-stress-3-a-double-blind-randomised-study
#13
Johanne L Agger, Andreas Schröder, Lise K Gormsen, Jens S Jensen, Troels S Jensen, Per K Fink
BACKGROUND: Functional somatic syndromes, including chronic fatigue syndrome or irritable bowel syndrome, often co-exist. Treatment guidelines supported by high quality evidence exist for most functional somatic syndromes, but are lacking for multiple comorbid functional somatic syndromes. We aimed to assess the effect of the tricyclic antidepressant, imipramine, in patients with multiple functional somatic syndromes defined by the criteria for multiorgan bodily distress syndrome, a unifying diagnosis that encompasses most functional somatic syndromes and somatoform disorders...
April 10, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28408004/development-of-the-diary-for-irritable-bowel-syndrome-symptoms-to-assess-treatment-benefit-in-clinical-trials-foundational-qualitative-research
#14
Sheri E Fehnel, Claire M Ervin, Robyn T Carson, Gianna Rigoni, Jeffrey M Lackner, Stephen Joel Coons
BACKGROUND: Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder characterized by abdominal pain and alterations in bowel habits. Three subtypes are defined on the basis of stool patterns: diarrhea-predominant IBS, constipation-predominant IBS, and alternating or mixed IBS. OBJECTIVES: To develop patient-reported outcome measures for qualification by the Food and Drug Administration to support product approvals and labeling in IBS; the article focuses on the qualitative research that provided the foundation for the new measures...
April 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28406734/effects-of-trang-phuc-linh-plus-food-supplement-on-irritable-bowel-syndrome-induced-by-mustard-oil
#15
Thong T Nguyen, Duong T Dau, Dung C Nguyen, Huong T T G Nguyen, Phuong T B Ngo, Thai Q Nguyen, Bo Han, Ba X Hoang
Trang phuc linh plus (TPLP) is a food supplement product derived from dried extracts of herbal agents Atractylodes macrocephala, Poria cocos, Paeonia lactiflora, Phellodendron amurense, and added lactobacillus fermentum lysate (ImmuneGamma(®)) and 5-hydroxytryptophan. TPLP is a functional food used as adjunctive treatment for treating irritable bowel syndrome (IBS). However the biological effect and its mechanism of action in IBS have not been elucidated. In this study, we aimed to determine the pharmacological activities and mode of action of TPLP on IBS animal models...
April 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28405151/systematic-review-the-placebo-effect-of-psychological-interventions-in-the-treatment-of-irritable-bowel-syndrome
#16
Carla E Flik, Laura Bakker, Wijnand Laan, Yanda R van Rood, André J P M Smout, Niek J de Wit
AIM: To determine the placebo response rate associated with different types of placebo interventions used in psychological intervention studies for irritable bowel syndrome. METHODS: Randomized controlled trials comparing psychological interventions (stress management/relaxation therapy (cognitive) behavioral therapy, short-term psychodynamic therapy, and hypnotherapy) for the treatment of adult patients with irritable bowel syndrome (IBS) diagnosed with the Manning or Rome criteria with an adequate placebo control treatment and reporting data on IBS symptom severity were identified by searching PubMed, Embase, the Cochrane Library, CINAHL and PsycINFO databases...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28404070/pathophysiology-of-irritable-bowel-syndrome
#17
REVIEW
Gerald J Holtmann, Alexander C Ford, Nicholas J Talley
Traditionally, irritable bowel syndrome has been considered to be a disorder with no known underlying structural or biochemical explanation, but this concept is likely to be outdated. In this Review we challenge the widely accepted view that irritable bowel syndrome is an unexplained brain-gut disorder. There is epidemiological evidence that, in a major subset of patients, gastrointestinal symptoms arise first and only later do incident mood disorders occur. Additionally, possible mechanisms for gut-brain dysfunction have been identified, suggesting primary gut disturbances might be the underlying cause in a subgroup...
October 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404068/association-between-functional-gastrointestinal-disorders-and-migraine-in-children-and-adolescents-a-case-control-study
#18
Julie Le Gal, Jean-Francois Michel, Victoria Elisa Rinaldi, Daniele Spiri, Raffaella Moretti, Donatella Bettati, Silvia Romanello, Paola Berlese, Rosa Lualdi, Priscilla Boizeau, Jerome Viala, Marc Bellaiche, Gian Vincenzo Zuccotti, Giovanni Crichiutti, Corinne Alberti, Luigi Titomanlio
BACKGROUND: Functional gastrointestinal disorders and migraine are both common causes of medical attention. We have previously shown an association between migraine and infant colic. In this case-control study, we aimed to establish whether there is an association between migraine and other functional gastrointestinal disorders in children and adolescents. METHODS: We included children and adolescents aged 6-17 years presenting to the emergency department of four tertiary hospitals in France and Italy...
October 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28403981/management-of-the-multiple-symptoms-of-irritable-bowel-syndrome
#19
REVIEW
Magnus Simrén, Hans Törnblom, Olafur S Palsson, William E Whitehead
Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders. A stepwise management approach is advocated for patients with IBS. For a substantial proportion of patients with mild symptoms, general management principles, including making a confident diagnosis and offering explanation, reassurance, and dietary and lifestyle advice, are sufficient. However, many patients continue to have moderate-to-severe symptoms and are not satisfied solely with this approach. In these patients, use of pharmacotherapy on the basis of the predominant symptom (constipation, diarrhoea, pain, or bloating) or combination of symptoms is the next step...
February 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28403801/iga-igm-responses-to-gram-negative-bacteria-are-not-associated-with-perinatal-depression-but-with-physio-somatic-symptoms-and-activation-of-the-tryptophan-catabolite-pathway-at-the-end-of-term-and-postnatal-anxiety
#20
Roomruangwong Chutima, Buranee Kanchanatawan, Sunee Sirivichayakul, George Anderson, André F Carvalho, Sebastien Duleu, Michel Geffard, Michael Maes
Evidence has implicated the translocation of commensal Gram-negative bacteria (Gram-B) due to leaky gut in the pathophysiology of depression and physio-somatic symptoms (e.g. fatigue, pain, irritable bowel syndrome, malaise, etc.). In addition, the leaky gut may contribute to immune-inflammatory activation and oxidative stress. This study investigated whether bacterial translocation is associated with perinatal depression and anxiety scores and with prenatal physio-somatic symptoms and immune-inflammatory biomarkers, including the tryptophan catabolite (TRYCAT) pathway...
April 7, 2017: CNS & Neurological Disorders Drug Targets
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