Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A–C: representative in vivo M-mode echocardiograms measuring left ventricular internal diameters at diastole and systole (LVIDd and LVIDs, respectively) from sham-operated (Sham; A), ovariectomized (OVx; B), and OVx + 17β-estradiol (OVx + E; C) guinea pigs. D–F: mean data of LVIDd (D), LVIDs (E), and fractional shortening (FS; F). Sham: n = 9, OVx: n = 10, and OVx + E: n = 10. *P < 0.05; **P < 0.01; ***P < 0.001.
