Physical Training vs. Perindopril Treatment on Arterial Stiffening of Spontaneously Hypertensive Rats: A Proteomic Analysis and Possible Mechanisms

Author(s)

Miotto, Danyelle Siqueira ; Duchatsch, Francine ; Dionizio, Aline ; Buzalaf, Marilia Afonso Rabelo ; Amaral, Sandra Lia

• Document type: Journal article
• Source: BIOMEDICINES; v. 11, n. 5, p. 17-pg., 2023-05-06.

Abstract

(1) Background: Arterial stiffness is an important predictor of cardiovascular events. Perindopril and physical exercise are important in controlling hypertension and arterial stiffness, but the mechanisms are unclear. (2) Methods: Thirty-two spontaneously hypertensive rats (SHR) were evaluated for eight weeks: SHRC (sedentary); SHRP (sedentary treated with perindopril-3 mg/kg) and SHRT (trained). Pulse wave velocity (PWV) analysis was performed, and the aorta was collected for proteomic analysis. (3) Results: Both treatments determined a similar reduction in PWV (-33% for SHRP and -23% for SHRT) vs. SHRC, as well as in BP. Among the altered proteins, the proteomic analysis identified an upregulation of the EH domain-containing 2 (EHD2) protein in the SHRP group, required for nitric oxide-dependent vessel relaxation. The SHRT group showed downregulation of collagen-1 (COL1). Accordingly, SHRP showed an increase (+69%) in the e-NOS protein level and SHRT showed a lower COL1 protein level (-46%) compared with SHRC. (4) Conclusions: Both perindopril and aerobic training reduced arterial stiffness in SHR; however, the results suggest that the mechanisms can be distinct. While treatment with perindopril increased EHD2, a protein involved in vessel relaxation, aerobic training decreased COL1 protein level, an important protein of the extracellular matrix (ECM) that normally enhances vessel rigidity. (AU)

• FAPESP's process: 19/26117-8 - Integrative proteomic and microRNA analysis of the intestine of mice with Type 2 Diabetes Mellitus treated with different concentrations of fluoride in drinking water
• Grantee: Aline Dionizio Valle
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 19/26070-1 - Modulation of acquired enamel pellicle to control dental mineral loss: unravelling mechanisms to make therapies possible
• Grantee: Marília Afonso Rabelo Buzalaf
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/25603-6 - Role of inflammatory cytokines in cardiac remodeling in rats with Aortic Stenosis treated with dexamethasone
• Grantee: Sandra Lia do Amaral Cardoso
• Support Opportunities: Regular Research Grants