Figure 5.

Effect of vitamin-D supplementation prior to surgery on FID in adipose tissue resistance arterioles collected on the day of surgery. FID measurements corresponding to intraluminal pressure gradients of 10–100 cm H₂O in VAT arterioles (A) and SAT arterioles (B) from subjects who administered vitamin-D supplements before surgery (n = 4) and subjects who did not (n = 11). Effect of L-NAME and vitamin-D incubation on FID in VAT arterioles (C) and SAT arterioles (D) from subjects who administered vitamin-D supplements before surgery (n = 4). All measurements are presented as means ± standard error (SE); ₸ p < 0.05 comparing L-NAME with baseline, † p < 0.05 comparing vitamin D with baseline, and * p < 0.05 comparing L-NAME + vitamin D with vitamin D alone.