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Mechanisms of Homoarginine: Looking Beyond Clinical Outcomes.
Acta Physiol (Oxf)
February 2025
Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Purpose: Homoarginine (hArg) is an arginine metabolite that has been known for years, but its physiological role in the body remains poorly understood. For instance, it is well known that high hArg concentrations in the blood are protective against several disease states, yet the mechanisms behind these health benefits are unclear. This review compiles what is known about hArg, namely its synthetic pathways, its role in different diseases and conditions, and its proposed mechanisms of action in humans and experimental animals.
View Article and Find Full Text PDFThe Association Between Serum Gamma-Glutamyl Transferase and Gastrointestinal Cancer Risk: A Systematic Review and Meta-Analysis.
Cancer Med
January 2025
Digestive Disease Research Center, Digestive Disease Research Institute, Tehran University of Medical Sciences, Shariati Hospital, Tehran, Iran.
Background: Gamma-glutamyl transferase (GGT) has been shown to have associations with several diseases including cancers. Previous studies have investigated the effect of GGT levels on the gastrointestinal (GI) cancer incidence. We aim to systematically investigate these studies to provide better insights into the interrelationship between GGT and GI cancers.
View Article and Find Full Text PDFAccounting for the role of the gastro-intestinal tract in the ammonia and urea-N dynamics of freshwater rainbow trout on long-term satiation feeding.
J Exp Biol
January 2025
Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
The contribution of the gut to the ingestion, production, absorption, and excretion of the extra ammonia and urea-N associated with feeding ("exogenous" fraction) has received limited prior attention. Analysis of commercial pellet food revealed appreciable concentrations of ammonia and urea-N. Long term satiation-feeding increased whole trout ammonia and urea-N excretion rates by 2.
View Article and Find Full Text PDFAdvanced hepatocellular carcinoma treatment strategies: Are transarterial approaches leading the way?
World J Gastrointest Oncol
January 2025
Department of General and Pediatric Surgery, Bolzano Central Hospital - SABES, Bolzano 39100, Trentino-Alto Adige, Italy.
Hepatocellular carcinoma (HCC) is a leading cause of cancer-related mortality worldwide, with advanced stages posing significant treatment challenges. Although hepatic arterial infusion chemotherapy (HAIC) has emerged as a promising modality for treating advanced HCC, particularly in Asian clinical practice, its adoption in Western medicine remains limited due to a lack of large-scale randomized controlled trials. This editorial reviews and comments on the meta-analysis conducted by Zhou , which evaluates the efficacy and safety of HAIC and its combination strategies for advanced HCC.
View Article and Find Full Text PDFThe Role of Intravenous Selexipag in Managing PAH and Bridging Gaps in Oral Treatment: A Narrative Review.
Ther Clin Risk Manag
January 2025
Departments of Medicine and Cardiology, Westchester Medical Center and New York Medical College, Valhalla, NY, USA.
Pulmonary arterial hypertension (PAH) is a rare and potentially fatal condition characterized by progressive increases in blood pressure in the arteries of the lungs. Oral selexipag, approved by the Food and Drug Administration (FDA) in 2015 for the treatment of PAH, targets prostacyclin receptors on pulmonary arterial vascular smooth muscle and endothelial cells to improve blood flow through the lungs and reduce pulmonary vascular resistance. Oral selexipag is effective, but may be discontinued due to factors like side effects, emergency conditions, or inability to take oral medication, potentially leading to severe adverse events, such as rebound pulmonary hypertension and right heart failure.
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