Ventricular Fibrosis and Coronary Remodeling Following Short-Term Exposure of Healthy and Malnourished Mice to Bisphenol A

Author(s)

Garcia-Arevalo, Marta ^{[1, 2]} ; Lorza-Gil, Estela ^{[1, 2]} ; Cardoso, Leandro ^[2] ; Batista, Thiago Martins ^{[1, 2]} ; Araujo, Thiago Reis ^{[1, 2]} ; Ferreira Ramos, Luiz Alberto ^[2] ; Areas, Miguel Arcanjo ^[2] ; Nadal, Angel ^[3] ; Carneiro, Everardo Magalhaes ^{[1, 2]} ; Davel, Ana Paula ^[2]

Affiliation

^[1] Univ Estadual Campinas, Obes & Comorbid Res Ctr OCRC, Campinas - Brazil

^[2] Inst Biol, Dept Struct & Funct Biol, Campinas - Brazil

^[3] Univ Miguel Hernandez, Spanish Biomed Res Ctr Diabet & Associated Metab, Inst Biol Mol & Celular, Inst Invest Desarrollo Innovac Biotecnol Sanitari, Elche - Spain

• Document type: Journal article
• Source: FRONTIERS IN PHYSIOLOGY; v. 12, APR 12 2021.
• Web of Science Citations: 0

Abstract

Bisphenol-A (BPA) is an endocrine disruptor associated with higher risk of insulin resistance, type 2 diabetes, and cardiovascular diseases especially in susceptible populations. Because malnutrition is a nutritional disorder associated with high cardiovascular risk, we sought to compare the effects of short-term BPA exposure on cardiovascular parameters of healthy and protein-malnourished mice. Postweaned male mice were fed a normo- (control) or low-protein (LP) diet for 8 weeks and then exposed or not to BPA (50 mu g kg(-1) day(-1)) for the last 9 days. Systolic blood pressure was higher in BPA or LP groups compared with the control group. However, diastolic blood pressure was enhanced by BPA only in malnourished mice. Left ventricle (LV) end diastolic pressure (EDP), collagen deposition, and CTGF mRNA expression were higher in the control or malnourished mice exposed to BPA than in the respective nonexposed groups. Nevertheless, mice fed LP diet exposed to BPA exhibited higher angiotensinogen and cardiac TGF-beta 1 mRNA expression than mice treated with LP or BPA alone. Wall:lumen ratio and cross-sectional area of intramyocardial arteries were higher either in the LP or BPA group compared with the control mice. Taken together, our data suggest that short-term BPA exposure results in LV diastolic dysfunction and fibrosis, and intramyocardial arteries inward remodeling, besides potentiate protein malnutrition-induced hypertension and cardiovascular risk. (AU)

• FAPESP's process: 18/26080-4 - Characterization of molecular and functional mechanisms involved in endocrine-metabolic, cardiovascular and neural dysfunctions induced by the restriction of amino acids in vitro and in vivo: possible therapeutic role of bile acid TUDCA
• Grantee: Everardo Magalhães Carneiro
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 14/09532-8 - Functional and molecular analysis of estrogen receptors in the islets of Langerhans and peripheral tissues of malnourished mice and their involvement in glycemic control
• Grantee: Marta García-Arévalo Provencio
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 14/01717-9 - Investigation of the insulinotropic, insulinomimetic and endothelial actions of taurine in cells/tissues submitted to an in vitro amino acid restriction: an integrated and multifocal approach
• Grantee: Everardo Magalhães Carneiro
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 13/07607-8 - OCRC - Obesity and Comorbidities Research Center
• Grantee: Licio Augusto Velloso
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC