VIPoma: An Unusual Cause of Chronic Diarrhea.

Chronic diarrhea is a significant challenge in clinical practice because of its high prevalence and various causes. Comprehensive clinical assessment and stepwise laboratory approach are crucial for an accurate diagnosis. This report presents a case of an adult woman who experienced chronic watery diarrhea, complicated by renal impairment and multiple electrolyte imbalances, including hypokalemia, hypophosphatemia, and metabolic acidosis.

Prevalence of RNF213 rs112735431 Genetic Polymorphism in Non-Cardioembolic Ischemic Cerebrovascular Disease: A Cross-Sectional Study in Thai Patients.

Introduction: Moyamoya disease (MMD) and non-MMD intracranial cerebral artery stenosis (ICAS) have been linked to the RNF213 rs112735431 gene in Korean and Japanese populations. This cross-sectional study investigates the prevalence of the RNF213 rs112735431 gene in non-cardioembolic ischemic stroke (NCIS) among Thai patients.

Methods: A cross-sectional investigation was conducted on patients aged 18 years or older admitted to King Chulalongkorn Memorial Hospital between June 2015 and March 2016 with acute NCIS.

Assessment of plasma dexamethasone levels after 1-mg dexamethasone suppression test in adults with obesity.

Background: The 1-mg overnight dexamethasone suppression test is the most frequently used screening test for Cushing's syndrome. It has been proposed that people with obesity may have insufficient plasma dexamethasone levels for the test which may result in false positives. We sought to compare the plasma dexamethasone levels after 1-mg dexamethasone suppression test in healthy obese participants and in optimal-weight participants.