[Use of incentives for participants in medical and health research in Norway].

Background: A fall in recruitment of participants for research has been observed in recent years. In order to ensure a sufficient number of research participants, incentives such as remuneration and gift cards have been used. The number of Norwegian research groups that apply to use payment has not been previously studied.

Age-dependent regulation of vasopressin V1a receptors in preglomerular vessels from the spontaneously hypertensive rat.

Experiments were performed to get insight into the role of AVP receptor V(1a) regulation with age, i.e., during development and maintenance of high blood pressure.