Chemical Actions and Uses Commons^™

Proton Pump Inhibitors Increase The Severity Of Hepatic Encephalopathy In Cirrhotic Patients, Matthew J. Fasullo, Prashanth Rau, Dong-Qi Liu, Erik Holzwanger, Jomol Mathew, Yurima Guilarte-Walker, Gyongyi Szabo

Gyongyi Szabo

BACKGROUND: Liver cirrhosis is the late stage of hepatic fibrosis and is characterized by portal hypertension that can clinically lead to decompensation in the form of ascites, esophageal/gastric varices or encephalopathy. The most common sequelae associated with liver cirrhosis are neurologic and neuropsychiatric impairments labeled as hepatic encephalopathy (HE). Well established triggers for HE include infection, gastrointestinal bleeding, constipation, and medications. Alterations to the gut microbiome is one of the leading ammonia producers in the body, and therefore may make patients more susceptible to HE.

AIM: To investigate the relationship between the use of proton pump inhibitors (PPIs) and HE …

Theaflavin-3, 3'-Digallate Decreases Human Ovarian Carcinoma Ovcar-3 Cell-Induced Angiogenesis Via Akt And Notch-1 Pathways, Not Via Mapk Pathways, Ying Gao, Gary O. Rankin, Youying Tu, Yi Charlie Chen

Gary O. Rankin

Theaflavin-3, 3'-digallate (TF3) is a black tea polyphenol produced from polymerization and oxidization of the green tea ployphenols epicatechin gallate and (-)-epigallocatechin-3-gallate (EGCG) during fermentation of fresh tea leaves. TF3 has been reported to have anticancer properties. However, the effect of TF3 on tumor angiogenesis and the underlying mechanisms are not clear. In the present study, TF3 was verified to inhibit tumor angiogenesis. Compared with EGCG, TF3 was more potent. TF3 inhibited human ovarian carcinoma OVCAR-3 cell-induced angiogenesis in human umbilical vein endothelial cell model and in chick chorioallantoic membrane model. TF3 reduced tumor angiogenesis by downregulating HIF-1α and VEGF. …

Essentials Of Herb-Drug Interactions In The Elderly With Cardiovascular Disease, Sulaiman Sultan, Maria Viqar, Rabaiya Ali, A. Jamil Tajik, Arshad Jahangir

Arshad Jahangir, MD

As the number of individuals, particularly the elderly, using herbal products with prescription drugs continues to grow, the risk for adverse interactions increases but remains poorly recognized. The true incidence and nature of adverse herb reactions or herb-drug interactions remains unknown since no postmarketing surveillance mechanism exists. Adverse events are greatly underreported, and information regarding safety mainly comes from case reports and suboptimally conducted studies in a limited number of healthy young volunteers or patients with limited comorbidities. Therefore, convincing evidence for the safety of herbal products in the elderly is lacking, and the true magnitude of problems that herb-drug …

Antipsychotic Use In Nursing Homes Varies By Psychiatric Consultant, Jennifer Tjia, Terry Field, Celeste Lemay, Kathleen Mazor, Michelle Pandolfi, Ann Spenard, Shih-Yieh Ho, Abir Kanaan, Jennifer Donovan, Jerry Gurwitz, Becky Briesacher

Jennifer Tjia

BACKGROUND: The relationship between psychiatric consultation and antipsychotic prescribing in nursing homes (NH) is unknown. OBJECTIVE: To identify the association between psychiatric consultant groups and NH-level antipsychotic prescribing after adjustment for resident case-mix and facility characteristics. RESEARCH DESIGN AND SUBJECTS: Nested cross-sectional study of 60 NHs in a cluster randomized trial. We linked facility leadership surveys to October 2009-September 2010 Minimum Data Set, Nursing Home Compare, the US Census, and pharmacy dispensing data. MEASURES: The main exposure is the psychiatric consultant group and the main outcome is NH-level prevalence of atypical antipsychotic use. We calculated annual means and interquartile ranges …