BACKGROUND The mechanism of enhanced vascular reactivity in young blacks, which may play a part in the development of hypertension, has not been defined. To determine the contribution of blunted vasodilatation mediated by beta 2-adrenergic receptors to this phenomenon, we compared forearm blood-flow responses to isoproterenol in young black and white normotensive men. METHODS We used venous-o...

Differences in cellular Na+ and K+ regulation may relate to the pathogenesis of essential hypertension and the predisposition of blacks to this disease. To explore these tenets, we examined several aspects of cellular Na+ homeostasis in serially passed, cultured skin fibroblasts from 30 subjects (15 hypertensive blacks and whites and normotensive subjects matched for sex, age, and race.) Fibrob...

Normative standards are provided for permanent tooth mineralization stages for blacks and whites of the middle southern United States. The data cover tooth development from 3.5 to 13 years of age. Females develop more rapidly than males, and blacks are nearly twice as sexually dimorphic (7.2%) as whites (3.7%). Within each sex, blacks achieve mineralization stages significantly earlier, by abou...

Abstract This paper shows how social structure shapes many behaviors of low-income Black peoples’ currently labeled “culture.” It refutes both culture poverty arguments based in welfare dependency and deindustrialization explanations the post-1960 increase single-parent families. Historically, distinct discrimination experiences urban versus rural enclaves structured child socializations family...

Since the release of the National HIV/AIDS Strategy (NHAS) (1) and the establishment of the federal Human Immunodeficiency Virus (HIV) Care Continuum Initiative (2), federal efforts have accelerated to improve and increase HIV testing, care, and treatment and to reduce HIV-related disparities in the United States. National HIV Surveillance System (NHSS)* data are used to monitor progress toward...