PMID- 38302836 OWN - NLM STAT- Publisher LR - 20240201 IS - 1573-4919 (Electronic) IS - 0300-8177 (Linking) DP - 2024 Feb 1 TI - Inhibitors of gastric acid secretion increase oxidative stress and matrix metalloproteinase-2 activity leading to vascular remodeling. LID - 10.1007/s11010-023-04921-x [doi] AB - The use of inhibitors of gastric acid secretion (IGAS), especially proton pump inhibitors (PPI), has been associated with increased cardiovascular risk. While the mechanisms involved are not known, there is evidence supporting increased oxidative stress, a major activator of matrix metalloproteinases (MMP), as an important player in such effect. However, there is no study showing whether other IGAS such as histamine H2-receptor blockers (H2RB) cause similar effects. This study aimed at examining whether treatment with the H2RB ranitidine promotes oxidative stress resulting in vascular MMP activation and corresponding functional and structural alterations in the vasculature, as compared with those found with the PPI omeprazole. Male Wistar rats were treated (4 weeks) with vehicle (2% tween 20), omeprazole (10 mg/Kg/day; i.p.) or ranitidine (100 mg/Kg/day; gavage). Then the aorta was collected to perform functional, biochemical, and morphometric analysis. Both ranitidine and omeprazole increased gastric pH and oxidative stress assessed in situ with the fluorescent dye dihydroethidium (DHE) and with lucigenin chemiluminescence assay. Both IGAS augmented vascular activated MMP-2. These findings were associated with aortic remodeling (increased media/lumen ratio and number of cells/mum(2)). Both IGAS also impaired the endothelium-dependent relaxation induced by acetylcholine (isolated aortic ring preparation). This study provides evidence that the H2RB ranitidine induces vascular dysfunction, redox alterations, and remodeling similar to those found with the PPI omeprazole. These findings strongly suggest that IGAS increase oxidative stress and matrix metalloproteinase-2 activity leading to vascular remodeling, which helps to explain the increased cardiovascular risk associated with the use of those drugs. CI - (c) 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Nogueira, Renato C AU - Nogueira RC AD - Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, 14049-900, Brazil. FAU - Sanches-Lopes, Jessica M AU - Sanches-Lopes JM AD - Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, 14049-900, Brazil. FAU - Oliveira-Paula, Gustavo H AU - Oliveira-Paula GH AD - Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, 14049-900, Brazil. AD - Division of Cardiology, Department of Medicine, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY, USA. FAU - Tanus-Santos, Jose E AU - Tanus-Santos JE AUID- ORCID: 0000-0002-9945-9633 AD - Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, 14049-900, Brazil. tanus@fmrp.usp.br. LA - eng GR - Finance Code 001/Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ GR - Finance Code 001/Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ GR - Finance Code 001/Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ GR - 2014-23946-0/Fundacao de Aparo a Pesquisa do Estado de Sao Paulo/ GR - 406442/2022-3/Conselho Nacional de Desenvolvimento Cientifico e Tecnologico/ PT - Journal Article DEP - 20240201 PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 SB - IM OTO - NOTNLM OT - MMP-2 OT - Omeprazole OT - Oxidative stress OT - Ranitidine OT - Vascular remodeling EDAT- 2024/02/02 00:42 MHDA- 2024/02/02 00:42 CRDT- 2024/02/01 23:58 PHST- 2023/10/31 00:00 [received] PHST- 2023/12/20 00:00 [accepted] PHST- 2024/02/02 00:42 [medline] PHST- 2024/02/02 00:42 [pubmed] PHST- 2024/02/01 23:58 [entrez] AID - 10.1007/s11010-023-04921-x [pii] AID - 10.1007/s11010-023-04921-x [doi] PST - aheadofprint SO - Mol Cell Biochem. 2024 Feb 1. doi: 10.1007/s11010-023-04921-x.