Active clinical trials for "Malabsorption Syndromes"

There is some controversy in the medical literature regarding the effectiveness of topical lidocaine in children as an adjuvant drug to upper gastrointestinal endoscopy. In children, deep sedation and general anesthesia are often used to sedate children submitting to this procedure. Propofol is an anesthetic drug increasingly popular in this situation, but this drug can only be used with an anesthesiologist in Brazil. Its main side effects include hypotension, respiratory depression and local pain. Lidocaine is frequently used as premedication, and the rationale is that lowering patient discomfort could lower the required dose to achieve the endoscopy and reduce potential side effects. Nevertheless, some patients perceive this medication as uncomfortable. This study aims to compare sedative drug doses between patients who were given either placebo or topical lidocaine.

This single-center, randomized, double-blind, placebo-controlled study is designed to compare effects of aldafermin, (NGM282), 1 mg, and placebo given daily by subcutaneous injection on bowel functions and hepatic synthesis and fecal excretion of bile acids in patients with diarrhea associated with bile acid malabsorption (BAM).

The purpose of this study is to evaluate the validity of using a carbohydrate intolerance questionnaire (CIQ) and/or other health markers as a means of predicting response to insulin sensitivity as determined by an oral glucose tolerance test (OGTT).

Purpose: The overall objective of this study is to learn more about the disease chronic pancreatitis and thus contribute to better treatments. The investigators will gain this by studying the effects of vitamin D in the body immune system and bones. The investigators will also study the uptake of vitamin D through the intestine compared with the amount of vitamin D obtained through exposure to UVB rays. The investigators have set a series of questions which the investigators want to answer with this experiment: Do patients with chronic pancreatitis have reduced absorption of vitamin D from the gut? Have the two treatment methods with vitamin D, UV radiation and tablets, the same success rate? Does the distribution of the white blood cells change when the vitamin D level increases and does it depend on whether the patient have UVB radiation or tablet with vitamin D? Will patients require reduced amounts of painkillers when vitamin D level increases? Does vitamin D have influence on blood sugar and thus the risk of diabetes or worsening of this? Could vitamin D affect the blood content of inflammation markers? Does the patient feel better when he takes vitamin D? Does bone strength increase when the patients receive grants of vitamin D?

The purpose of this study is to determine whether the enzymatic product Frucosin(R) is able to degrade fructose in vivo in the small intestine of patients with known fructose malabsorption by measuring hydrogen in the expiratory air.

The goal of this study is to assess the performance of the Vivante Health GIMate Breathalyzer device in diagnosing lactose malabsorption.

This study assessed the effect of a nutrition support product on quality of life in adults with compromised gut function and malabsorption.

Bariatric surgery represents the best therapeutic option to induce sustainable weight loss and to solve serious comorbidities improving the life-expectancy and the quality of life. Actually the choice of the procedure is based on the surgeon's and patients preference . Mini gastric bypass(MGB) is an emerging procedure offering excellent results in terms of weight loss and comorbidities (mainly metabolic) control. On the other hand, recent data indicated that the gut microbiota may mediate some of the beneficial effects of bariatric surgery and changes in the composition and diversity of the gut microbiota have been observed after RY Gastric Bypass (RYGB) in humans as well as in mice. However, there are no prospective investigations on Gut Microbiota changes after MGB, despite the procedure is described as "malabsorptive" and there are no studies comparing gut microbiota shift and malabsorption entity in humans after RYGB vs MGB. Thereafter prospective data on the incidence of bile reflux esophageal lesions after MGB are lacking. The aim of the present multicentric prospective comparative study is to evaluate malabsorption and gut microbiota shift after laparoscopic RYGB vs MGB at 1 year.

Obesity is an independent risk factor for colorectal cancer (CRC) although the underlying mechanisms have not been elucidated. Dietary nutrients play a key role in both the prevention and promotion of CRC. While iron is an essential nutrient, excess iron is associated with carcinogenesis. Unlike the systemic compartment, the intestinal lumen lacks an efficient system to regulate iron. In conditions when dietary iron malabsorption and intestinal inflammation co-exist, greater luminal iron is associated with increased intestinal inflammation and a shift in the gut microbiota to more pro-inflammatory strains. However, treatments designed to reduce luminal, including diet restriction and chelation, are associated with lower intestinal inflammation and the colonization of protective gut microbes. Obesity is associated with inflammation-induced, hepcidin-mediated, iron metabolism dysfunction characterized by iron deficiency and dietary iron malabsorption. Obesity is also linked to intestinal inflammation. Currently, there is a fundamental gap in understanding how altered iron metabolism impacts CRC risk in obesity. The investigator's objective is to conduct a crossover controlled feeding trial of: 1) a "Typical American" diet with "high" heme/non-heme iron", 2) a "Typical American" diet with "low" iron, and 3) a Mediterranean diet with "high" non heme iron and examine effects on colonic and systemic inflammation and the gut microbiome.

In the current study, we willquantitate the difference in digestion and absorption kinetics of dietary whole protein versus free amino acids in vivo in critically ill patients admitted to the intensive care unit suffering from malabsorption. 16 adult, mechanically ventilated ICU patients with clinical signs of malabsorption (faecal weight >350 g/day) will be included. All patients will receive a primed continuous intravenous infusion of L-[ring2H5]-phenylalanine and L-[3,5-2H2]-Tyrosine for the duration of the study period. After reaching an isotopic steady state (1.5 hours), patients will receive either [1-13C]- phenylalanine labelled milk protein or free amino acids with an identical constitution and [1-13C]-phenylalanine. Main study endpoint will be the splanchnic extraction of phenylalanine, calculated from systemic [1-13C]- and L-[ring2H5]-phenylalanine enrichment.