Urinary kallikrein in normal pregnancy, pregnancy with hypertension, and toxemia.

Abstract:

:The 24-hour urinary excretion of kallikrein (K) and prostaglandin E2 (PGE2), which reflects their intrarenal synthesis, was measured in 7 normal women (NW), 10 women with essential hypertension (EH), 26 normal pregnant women (NP), 12 women with hypertension in pregnancy (HP), and 4 women with toxemia. All pregnant women were in the last trimester of their pregnancy (week 24-40). K was raised in NP (99.6 +/- 8.1 KU/24 h) and HP (106.5 +/- 8 KU/24 h) compared to NW (57 +/- 8.23 KU/24 h) (p less than 0.05). PGE2 excretion was decreased in EH (403.25 +/- 90.6 ng/24 h) compared to NW (508.6 +/- 80.26 ng/24 h). During pregnancy PGE2 was increased to 1,088 +/- 93.2 ng/24 h in NP and significantly more in HP, 1,885 +/- 40 ng/24 h (p less than 0.002). In this regard it differed from K. These data may suggest that, in addition to K, other factors (as angiotensin II and/or antidiuretic hormone) possibly activate renal PGE2 production in HP. In toxemia, K (23 +/- 6.1 KU/24 h) and PGE2 (583 +/- 172.83 ng/24 h) were markedly decreased. The above results suggest that the renal kallikrein-kinin and prostaglandin systems may play a role in sodium homeostasis during pregnancy. Their exact influence on the pathogenesis of hypertension in nonpregnant, pregnant, and toxemic subjects awaits further investigation.

journal_name

Nephron

journal_title

Nephron

authors

Kovatz S,Arber I,Korzets Z,Rathaus M,Ben Aderet N,Bernheim J

doi

10.1159/000183426

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

48-51

issue

1

eissn

1660-8151

issn

2235-3186

journal_volume

40

pub_type

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