UnitedHealth Revamps Payments
Efforts to change how Americans pay for health care are gathering momentum on a national scale as UnitedHealth, the largest U.S. health insurer, becomes the latest carrier to say it is overhauling its fees for medical providers. (Source: WSJ.com: Health)

Postprandial endothelial function does not differ in women by race: an insulin resistance paradox?
In this study, we test the hypothesis that African-American women have impaired postprandial endothelial function compared with white women. Postprandial endothelial function following a breakfast (20% protein, 40% fat, and 40% carbohydrate) was evaluated in 36 (18 African-American women, 18 white women) age- and body mass index (BMI)-matched (age: 37 plusmn; 11 yr; BMI: 30 plusmn; 6 kg/m2) women. Endothelial function, defined by percent change in brachial artery flow-mediated dilation (FMD), was measured at 0, 2, 4, and 6 h following a meal. There were no significant differences between the groups in baseline FMD, total body fat, abdominal visceral fat, and fasting levels of glucose, insulin, total cholesterol, low-density lipoprotein cholesterol, or serum estradiol. Although African-Am...