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  • Title: [Correlation of adipocytokines and insulin resistance in normal pregnancy].
    Author: Yu S, Zang CY, Zhang WY.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2006 Oct; 41(10):680-3. PubMed ID: 17199923.
    Abstract:
    OBJECTIVE: To explore the dynamic changes of adipocytokines and its correlation with insulin resistance during different stages of normal pregnancy. METHODS: Sixty-seven healthy pregnant women (18 first, 19 second and 30 third trimester) as experimental groups and 46 healthy age-matched non-pregnant women as a control group were investigated in a case-control cross-sectional study. Serum soluble tumor necrosis factor receptor (sTNFR) was determined by enzyme linked immunoadsorbent assay (ELISA). Maternal serum leptin and adiponectin were detected by radial immunodiffusion. TNF-alphaR in placenta and fat tissue was examined by streptavidin/peroxidase. RESULTS: The sTNFR-I level was higher in pregnant women than that in the control group (729 +/- 167) ng/L, being significantly higher in second (1003 +/- 241) ng/L and third trimesters (1278 +/- 306) ng/L (P < 0.001). sTNFR-II level of first, second and third trimester groups (1383 +/- 305) ng/L, (1772 +/- 293) ng/L, (1933 +/- 498) ng/L was higher than that in the control group (1002 +/- 221) ng/L (P < 0.001) and was increased with the progress of gestation. Leptin level in late trimester (89 +/- 57) microg/L was significantly higher than that in control group (61 +/- 37) microg/L (P < 0.05). Adiponectin level in second (9 +/- 5) mg/L and third trimesters (10 +/- 4) mg/L was significantly lower than that in control group (14 +/- 7) mg/L (P < 0.05). The sTNFR-I and sTNFR-II were expressed in placenta and fat tissue. CONCLUSION: The dynamic changes of adipocytokines contribute to occurrence of insulin resistance.
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