Objective: Serum leptin, the product of the obesity gene, correlates with adiposity and increases fat utilization. Maternal serum
leptin, triglyceride and free fatty acids are elevated in healthy pregnancy, and are increased further in preeclampsia. This study has
compared serum leptin levels in pregnant women with preeclampsia and normal pregnant women. Materials and Method: This casecontrol
study was done in 2018 on eighty pregnant women of a hospital in Zahedan city, Iran. Forty of the chosen women had
preeclampsia (case group) and the rest were normal (control group). Serum leptin level was measured by enzyme-linked
immunosorbent assay test and analyzed using the t-test. Results: The leptin levels were 1985 pg/mL and 2595 pg/mL in case and
control groups which was significantly different (P = 0.016). Leptin level had no significant correlation with age, preeclampsia history
or blood pressure (P > 0.05). Also, leptin levels increased with increase of body mass index in pregnant women with preeclampsia (P
= 0.029). Conclusion: We found that the blood leptin levels were significantly lower in the preeclampsia group compared with the
normal pregnant women. Measuring blood leptin levels, BMI and Systolic blood pressure in pregnancy may be helpful as early tests
in the early detection of high risk individuals.
Keywords: preeclampsia; pregnancy; leptin; Maternal: healthy pregnancy