title: Estimating rate of insulin resistance in patients with preeclampsia using HOMA-IR index and comparison with nonpreeclampsia pregnant women.
abstract: Women with preeclampsia, independent of obesity and glucose intolerance, exhibit insulin resistance during pregnancy. The purpose of the present study is to determine whether early diagnosis of insulin resistance during pregnancy can predict preeclampsia. Through a case-control study, 675 pregnant women were selected and their first trimester blood was taken. Their fasting blood glucose and insulin were also measured after diagnosis of preeclampsia by 20 weeks of pregnancy. Based on the experiments conducted on 675 women who were 20 weeks past their pregnancy, 375 cases with preeclampsia were selected and assigned to the case group. 35 other pregnant women were put in the control group. Diagnosis criteria for the participants included blood pressure above 140/90 and proteinuria above 300 mg or above +1. Both groups were matched according to age, parity, gestational age, and BMI. Homa-Irand rate of insulin resistance was calculated by HOMA-IR and patients were followed up. Homeostatic model assessments (HOMA-IR) revealed that the average insulin resistance increased during pregnancy among both the case and control groups. There was a significant difference between insulin resistance of these two groups in both first trimester and third trimester and after developing preeclampsia (P < 0.001, P = 0.021). Insulin-resistance of the group with preeclampsia was higher in first trimester prior to diagnosis as well as the third trimester after diagnosis compared to natural pregnancy under similar conditions. Measurement of insulin resistance in first trimester may be useful in predicting the risk of preeclampsia.
authors.affiliation: Obstetric Department, Nasibeh Nursing and Midwifery Faculty, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Farideh Rezaei
authors.initials: FR
authors.lastname: Abhari
authors.affiliation: Fatemehzahra Infertility and Reproductive Health Research Center, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Ghanbari Andarieh
authors.affiliation: Department of Ophthalmology, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Asadollah
authors.initials: A
authors.lastname: Farokhfar
authors.affiliation: Department of Medical Education, School of Medical Education, Shaheed Beheshti University of Medical Science, Tehran, Iran.
authors.forename: Soleiman
authors.initials: S
authors.lastname: Ahmady
mesh_terms: D000328:Adult; D043925:Angiogenesis Inducing Agents / Q000378:metabolism; D001786:Blood Glucose / Q000378:metabolism; D016022:Case-Control Studies; D005215:Fasting / Q000097:blood; D005260:Female; D006706:Homeostasis; D006801:Humans; D007333:Insulin Resistance; D009765:Obesity / Q000097:blood / Q000150:complications / Q000378:metabolism; D011225:Pre-Eclampsia / Q000097:blood / Q000378:metabolism* / Q000473:pathology*; D011247:Pregnancy; D011261:Pregnancy Trimester, First / Q000097:blood; D011263:Pregnancy Trimester, Third / Q000097:blood
chemical_list: D043925:Angiogenesis Inducing Agents; D001786:Blood Glucose