The balance between proangiogenic and antiangiogenic factors, such as vascular endothelial growth factor, placental growth factor, and soluble fms-like tyrosine kinase-1 (sFlt-1), is altered in preeclampsia, and this dysregulation of angiogenic factors may be important in the pathogenesis of preeclampsia. Although sFlt-1 is elevated in preeclampsia, the mechanisms responsible for increasing thi...

While soluble fms-like tyrosine kinase-1 (sFlt-1) and endothelin-1 (ET-1) have been implicated in the pathogenesis of preeclampsia (PE), the mechanisms whereby increased sFlt-1 leads to enhanced ET-1 production and hypertension remain unclear. It is well documented that nitric oxide (NO) production is reduced in PE; however, whether a reduction in NO synthesis plays a role in increasing ET-1 an...

Pregnant women with preeclampsia have increased serotonin levels, suggesting a possible role of this amine in abnormal pregnancy. With the hypothesis that an increase in serotonin would reduce volume expansion and cause fetal growth restriction, we evaluated the maternal and fetal effects of the administration of the serotonin precursor 5-hidroxytryptophan (5-HTP) to Sprague-Dawley rats. At pre...

Dose-dependent changes in protein metabolism the blood and hematological parameters of pregnant rats under effect vanadium citrate are presented article. The animals were divided into five groups: group I – non-pregnant females, II females consuming pure water without additives, III, IV, V which during mating pregnancy period received solution at concentrations 0.03, 0.125 0.50 ?g V/mL water. r...

Variations in phosphatidate phosphohydrolase (PAP) activity and triacylglycerol concentration were measured in pregnant and hormone-treated non-pregnant female rats. PAP activity in adipose tissue was elevated by 61% during pregnancy. The increase in the enzyme activity was paralleled with a rise in serum triacylglycerol concentration (44%). Estradiol injecting into non-pregnant rats increased ...

the aim of this study was to examine the effect of swimming submaximal training and cadmium consumption on cardiac hif1-α and vascular endothelial growth factor (vegf) in pregnant rats. 32 pregnant wistar rats were randomly divided into 4 groups: cadmium, swimming, cadmium+swimming and control. experimental groups performed the swimming protocol for 3 weeks, 5 sessions a week for 60 minutes per...

The present study tested the hypothesis that cytochrome P-450 (CYP) metabolites of arachidonic acid (AA) are involved in mediating hypertension and renal vasoconstriction during chronic reductions in uterine perfusion pressure (RUPP) in pregnant rats. 1-aminobenzotriazole (ABT), a CYP enzyme inhibitor (25 mg/kg per day), or vehicle (saline 0.9%) was administered for 7 days to normal pregnant (N...

Taurine is the most abundant free amino acid in the body and is present at high concentrations during development and in the early milk. It is synthesized from cysteine via oxidation of cysteine to cysteinesulfinate by the enzyme cysteine dioxygenase (CDO), followed by the decarboxylation of cysteinesulfinate to hypotaurine, catalyzed by cysteine sulfinic acid decarboxylase (CSAD). To determine...

OBJECTIVE To investigate the potential role of anti-tumor necrosis factor-alpha (TNF-alpha) antibodies on some renal functions and release of vasoregulatory peptides using nitric oxide synthase deprived pregnant rats. METHODS This study was carried out at King Khalid University Hospital, King Saud University, Riyadh, Kingdom of Saudi Arabia from December 2011 to November 2012. Forty female Wi...

Despite the fact that obesity is a major risk factor for preeclampsia (PE), the pathophysiological mechanisms whereby obesity and metabolic factors such as leptin increase this risk are unclear. While human data have shown that hyperleptinemia is associated with PE, the long-term effect of hyperleptinemia on blood pressure during pregnancy is unknown. Thus we tested the hypothesis whether chron...