Changes in serum levels of leptin, cytokines and lipoprotein in preeclamptic and normotensive pregnant women
[ X ]
Tarih
2004
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Parthenon Publishing Group
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this study was to investigate the changes in serum levels of leptin, cytokines and lipoproteins in women with pre-eclampsia and to evaluate their clinical significance in the pathogenesis of pre-eclampsia. We performed a prospective study involving 45 women with pre-eclampsia in the third trimester of pregnancy and 30 normotensive women in the third trimester of pregnancy. Serum level of leptin was measured by enzyme immunoassay using a Cayman chemical kit, Serum levels of tumor necrosis factor (TNF)-alpha, intertleukin (IL)-1beta, soluble IL-2 receptor (sIL-2R), IL-6 and IL-8 were measured by using a nonradioimmunoassay chemiluminescent method. Serum lipid concentrations were measured by an Abbott Aeroset (USA) autoanalyzer. Serum levels of apolipoprotein (Apo)A-I and ApoB were evaluated by nephelometrics assays. Differences between groups were evaluated with Student's unpaired t test and, when a variable was not normally distributed, the Mann-Whitney U test was used. The relationship between the variable was explored by the Pearson correlation test. Serum levels of leptin, TNF-alpha, IL-1beta, sIL-2R, IL-6 and IL-8 in the preeclamptic women were significantly higher than in normotensive women (p < 0.001). In the pre-eclamptic women serum levels of triglycerides, total cholesterol and low-density lipoprotein (LDL)-cholesterol were significantly increased (p < 0.001), while high-density lipoprotein (HDL)-cholesterol and Apo-A were significantly decreased compared to levels in normotensive pregnant women (p < 0.001). No significant differences were noted between the groups in Apo-? (p > 0.05). Serum levels of TNF-? were significantly correlated with the serum levels of IL-6, IL-8, triglycerides, sIL-2R, Apo-A and hematocrit in pre-eclamptic women (r = 0.418, p < 0.05 - r = 0.389, p < 0.01; r = 0.312, p < 0.05; r 0.318, p < 0.05; r 0.340, p < 0.05 and r = 0.41, p < 0,01, respectively). A negative correlation was seen between serum level of leptin and both IL-1? and Apo-A in pre-eclamptic women (r = 0.44, p < 0.05; r = 0.39, p < 0.05, respectively). Serum levels of IL-6 were also signficantly correlated with the serum levels of HDL-cholesterol, LDL-cholesterol and body mass index (BMI) in preeclamptic women (r = 0.40, p < 0.01; r = 0.568, p < 0. 0 1; r 0. 3 0, p < 0. 05, respectively). In addition, serum level of IL-8 were significantly correlated with the serum levels of HDL-cholesterol, total cholesterol and BMI in pre-eclamptic women (r = 0.368, p < 0.05; r = 0.513, p < 0.01 and r = 0.41, p < 0.01, respectively). We found that the pre-eclampsia associated with increases in serum levels of leptin, TNF-?, cytokines, triglycerides, total cholesterol and LDL-cholesterol was associated with a significant reduction in serum levels of HDL-cholesterol and Apo-A. These association may be due to the abnormal lipid metabolism and immune activation involved in the pathogenesis of this disease.
Açıklama
Anahtar Kelimeler
Pre-Eclampsia, Tumour Necposis Factor-Alpha, Leptin, Cytokines, Lipoproteins
Kaynak
Gynecological Endocrinology
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
19
Sayı
5
