OBJECTIVE Abdominal symptoms are common after bariatric surgery, and these individuals commonly have upper gut bacterial overgrowth, a known cause of malabsorption. Breath hydrogen determination after oral glucose is a safe and inexpensive test for malabsorption. This study is designed to investigate breath hydrogen levels after oral glucose in symptomatic individuals who had undergone Roux-en-...

OBJECTIVE Diagnosis of pre-diabetes and early-stage diabetes occurs primarily by means of an oral glucose tolerance test (OGTT), which requires invasive blood sampling. The aim of this study was to determine whether differences exist in breath (13)CO(2) excretion during a (13)C-labeled OGTT between individuals with normal glucose tolerance (NGT) and individuals with pre-diabetes and early-stage...

background: helicobacter pylori infection is the most common gastrointestinal bacterial disease worldwide. although using culture is considered as the golden standard method for diagnosis of h. pylori infection, urea breath test is a notable alternative method because it is an easy, quick, and non-invasive approach. the aim of this study was to estimate the prevalence of h. pylori infection in ...

objective: childhood infectious diseases are one of the most known environmental pathogenic causes of childhood asthma. the high prevalence of both helicobacter pylori infection and asthma in our country prompted us to assess anyprobable as- sociation between them in childhood. methods: this cross-sectional study recruited 196 children aged 6 to 12 years old comprising 98 asthmatic (case group)...

Background: Recent studies support that intestinal microbes contribute to human disease, and enteric methanogens have been specifically linked to altered gut metabolism and weight gain. In this study, we tested whether methane on breath test (as a surrogate for colonization with the predominant methanogen Methanobrevibacter smithii) is associated with altered glucose tolerance in humans. Method...

Incomplete intestinal absorption of fructose might lead to abdominal complaints such as pain, flatulence and diarrhoea. Whether defect fructose transporters such as GLUT5 or GLUT2 are involved in the pathogenesis of fructose malabsorption is a matter of debate. The hydrogen production by colonic bacteria is used for diagnosis with the hydrogen breath test. However, the appropriate fructose test...

Introduction Glucose-Galactose Malabsorption (GGM) is an autosomal recessive and rare disorder of intestinal transport of glucose and sodium-glucose cotransporter type (SGLT1). Case Report Our patient is a 32-day-old boy who was examined for severe diarrhea and acidosis and was treated with GGMdiagnosis. A number of laboratory tests were performed on this patient as well as positive test for r...

BACKGROUND Perceived milk intolerance is a common complaint, and tests for lactose malabsorption (LM) are unreliable. This study assesses the agreement between diagnostic tests for LM and describes the diagnostic properties of the tests. METHODS Patients above 18 years of age with suspected LM were included. After oral intake of 25 g lactose, a combined test with measurement of serum glucose ...

background: gestational diabetes mellitus (gdm) is the most common metabolic complications of pregnancy and causes fetal mortality and morbidity. therefore early diagnosis of gdm is necessary to reduce maternal and fetal morbidity and to help prevent or delay the onset of type 2 diabetes objective: this prospective study was carried out to determine the incidence of gdm in yazd and to assess th...

Evidence is increasing that defective metabolism of postprandial remnants of triglyceride-rich lipoproteins contributes to atherogenesis. In obesity, postprandial lipemia is increased by mechanisms that are not currently established. In the present study, a recently developed (13)CO(2) breath test was used to assess the metabolism of chylomicron remnants (CR) in obese mice. Six murine obese mod...