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.
LH levels in two-dose 17β-estradiol (E2) treatment regimen of ovariectomized (OVX) Kiss1-CreGFP mice. LH (ng/ml) levels from serum of Kiss1-CreGFP mice at ZT4 (E2, n = 8) and ZT12 (n = 8). Lights went off at ZT12. LH levels of E2-treated animals at ZT12 (4.69 ± 1.5 ng/ml) were significantly higher than LH levels in E2-treated animals at ZT4 (0.35 ± 0.10 ng/ml); *P < 0.05 (Student's t-test).
