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.
Chronic hypoxia (CH) increases vasoconstrictor sensitivity to endothelin-1 (ET-1). Vasoconstriction (percent baseline internal diameter; A) and fura-2 ratios (B) in endothelium-disrupted, Ca2+-clamped control and CH pulmonary arteries in response to increasing concentrations of ET-1 are shown. n = 5–6/group. *P < 0.05 vs. control.
