PMID- 26857932 OWN - NLM STAT- MEDLINE DCOM- 20160706 LR - 20211214 IS - 0975-5764 (Electronic) IS - 1596-3519 (Print) IS - 0975-5764 (Linking) VI - 15 IP - 1 DP - 2016 Jan-Mar TI - Relationship between serum leptin and insulin resistance among obese Nigerian women. PG - 14-9 AB - BACKGROUND: Leptin is a hormone produced directly from adipocytes and has been associated with type 2 diabetes mellitus (T2DM) which is characterized by insulin resistance (IR). Due to the increasing prevalence of obesity in sub-Saharan Africa, serum leptin can be explored as a predictive risk factor for T2DM. Therefore, the aim of this study was to determine the relationship between serum leptin and IR among obese women. METHODS: This was a cross-sectional study of obese, adult Nigerian females. Participants with body mass index (BMI) >/=30 kg/m2 and nondiabetic were recruited as subjects. Fasting serum leptin, insulin, and plasma glucose were determined. IR was calculated using the formula: Homeostatic model assessment-IR (HOMA-IR) = (glucose x insulin)/22.5. Statistical analyses were performed using SPSS and P < 0.05 was considered to be significant. RESULTS: Eighty obese females with mean +/- standard deviation BMI 39.1 +/- 7.2 kg/m2 and serum leptin level 48.4 +/- 24.4 ng/ml participated in study. Prevalence of hyperleptinemia was 92.5% (confidence interval: 87.3-97.7%). The relationship between leptin and HOMA-IR among the subjects was: BMI 30-34.9 kg/m2: n = 27, r = 0.18, P = 0.42; BMI 35-39.9 kg/m2: n = 24, r = 0.36, P = 0.11; BMI >/= 40 kg/m2: n = 29, r = 0.52, P = 0.004*; and after controlling for BMI (n = 29, r = 0.46, P = 0.014*). Multiple linear regression showed that leptin did not predict for IR (P = 0.837). CONCLUSION: Serum leptin levels were positively correlated with IR, which was significant among the Class III (morbid) obesity class. However, leptin was not a predictive factor for IR in obese Nigerian women. FAU - Osegbe, Ifeyinwa AU - Osegbe I AD - Department of Chemical Pathology, University of Nigeria Teaching Hospital, Enugu, Nigeria. FAU - Okpara, Henry AU - Okpara H FAU - Azinge, Elaine AU - Azinge E LA - eng PT - Journal Article PL - India TA - Ann Afr Med JT - Annals of African medicine JID - 101231417 RN - 0 (Blood Glucose) RN - 0 (Insulin) RN - 0 (LEPR protein, human) RN - 0 (Leptin) RN - 0 (Receptors, Leptin) SB - IM MH - Adult MH - Blood Glucose/analysis MH - Body Mass Index MH - Case-Control Studies MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/*blood MH - Female MH - Humans MH - Insulin/blood MH - *Insulin Resistance MH - Leptin/*blood MH - Middle Aged MH - Obesity/*blood MH - Receptors, Leptin MH - Risk Factors PMC - PMC5452686 COIS- There are no conflicts of interest. EDAT- 2016/02/10 06:00 MHDA- 2016/07/07 06:00 PMCR- 2016/01/01 CRDT- 2016/02/10 06:00 PHST- 2016/02/10 06:00 [entrez] PHST- 2016/02/10 06:00 [pubmed] PHST- 2016/07/07 06:00 [medline] PHST- 2016/01/01 00:00 [pmc-release] AID - AnnAfrMed_2016_15_1_14_158524 [pii] AID - AAM-15-14 [pii] AID - 10.4103/1596-3519.158524 [doi] PST - ppublish SO - Ann Afr Med. 2016 Jan-Mar;15(1):14-9. doi: 10.4103/1596-3519.158524.