A pilot test of a self-guided, home-based intervention to improve condom-related sexual experiences, attitudes, and behaviors among young women.

Objective: To conduct a pilot test of a brief, self-guided, home-based program designed to improve male condom use attitudes and behaviors among young women.

Participants: Women aged 18-24 years from a large Midwestern University reporting having had penile-vaginal sex with two or more partners in the past 3 months. Sixty-seven enrolled; 91.

Regulation of plasma vasopressin and renin activity in conscious hindlimb-unloaded rats.

Cardiovascular deconditioning occurs in astronauts after spaceflight or in individuals subjected to bed rest. It is characterized by an increased incidence of orthostatic intolerance. The mechanisms responsible for orthostatic intolerance are likely multifactorial and may include hypovolemia, autonomic dysfunction, and vascular and cardiac alterations.

Rats exhibit aldosterone-dependent sodium appetite during 24 h hindlimb unloading.

Hindlimb unloading (HU) is an animal model of microgravity and bed rest. In these studies, we examined the role of ingestive behaviours in regulating body fluid balance during 24 h HU. In the first experiment, all rats were given distilled water to drink while two groups were also given access to a sodium chloride solution (0.

Cardiovascular regulation of supraoptic vasopressin neurons.

A number of laboratories have identified several key areas in the central nervous system that relay information from arterial baroreceptors to the supraoptic nucleus. Two of these regions are the diagonal band of Broca and the perinuclear zone of the supraoptic nucleus. Recent findings suggest that the inhibition of vasopressin neurons in the SON by caval-atrial stretch may also involve the perinuclear zone.

Intrapericardial procaine affects volume expansion-induced fos immunoreactivity in unanesthetized rats.

Acute volume expansion is associated with a specific pattern of Fos expression and the goal of the present study was to evaluate the contribution of cardiac receptors to this response. Adult male rats were instrumented with pericardial catheters introduced at the level of the thymus. Rats were also catheterized for measuring blood pressure, heart rate, central venous pressure, and intravenous infusion.

Wakeful positioning and movement controlling young infants: A pilot study.

Purpose: Clinical experience has suggested differences in motor development between infants nursed prone, and those nursed supine. This pilot study investigated possible associations between wakeful infant positioning and motor control. Method: Twenty-six infants were examined.