Search results for "Sodium excretion"
showing 4 items of 4 documents
Funktionelle Beziehung zwischen Leber und Niere: Teil I. Natriumexkretion*
2008
Current and birth weights exert independent influences on nocturnal pressure-natriuresis relationships in normotensive children
1998
The objective was to study the impact of birth weight on the relationship between ambulatory blood pressure and urinary sodium excretion in children and adolescents. The study included 134 healthy children (61 boys), all Caucasians, who were born at term after a normotensive pregnancy. For each subject, a 24-hour ambulatory blood pressure monitoring and a complete urine collection were simultaneously performed according to the protocols designed. Average ambulatory blood pressure (BP) and the urinary excretion rates for sodium, potassium, and creatinine were calculated separately for 24-hour, awake, and sleep periods defined by a mini-diary. The excretion rate of sodium during sleep time wa…
Die Ausbildung verschieden starker Stauungs�deme bei der Ratte und ihre Beseitigung durch Chlorothiazid
1960
1. After tying of the jugular veins a congestion edema of differing intensity was produced by oral loading of rats with varying amounts of saline. 2. Chlorothiazid (10 or 50 mg./kg. i.v.) given 24 hours after tying of the jugular veins increased the diuresis and sodium excretion to approximately the same values in edematous and normal animals. 3. The effect of chlorothiazid on renal excretion is not influenced by the severity of the edema and is not quantitatively related to reduction of edema.
Artrial Natriuretic Peptide Concentrations in Preeclampsia
1989
During pregnancy various humoral and functional mechanisms were recognized, that regulate the water and electrolyte household. In preeclampsia, increased water-sodium retention results from a variety of pathophysiological changes in the endocrinological system. There are also organ-specific changes, such as renal clearance reduction up to 30% in comparison to normal pregnancy. For many years, physiologists expected to find additional cardial mechanisms that influence homeostasis. In 1981, de Bold [3] identified ANP a new humoral factor that leads to increased water and sodium excretion. The influence of ANP in preeclampsia has been the subject of controversial discussion.