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    Cardiovasc Diabetol. 2007 Jul 7;6:18.

    Serum leptin and its relation to anthropometric measures of obesity in pre-diabetic Saudis.

    Al-Daghri NM, Al-Attas OS, Al-Rubeaan K, Mohieldin M, Al-Katari M, Jones AF, Kumar S.

    Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia. aldaghri2000@hotmail.com

    BACKGROUND: Little information is available on leptin concentrations in individuals with IGT. This study aims to determine and correlate leptin levels to anthropometric measures of obesity in pre-diabetic, (IFG and IGT), type 2 diabetic and normoglycaemic Saudis. METHODS: 308 adult Saudis (healthy controls n = 80; pre-diabetes n = 86; Type 2 diabetes n = 142) participated. Anthropometric parameters were measured and fasting blood samples taken. Serum insulin was analysed, using a solid phase enzyme amplified sensitivity immunoassay and also leptin concentrations, using radio-immunoassay. The remaining blood parameters were determined using standard laboratory procedures. RESULTS: Leptin levels of diabetic and pre-diabetic men were higher than in normoglycaemic men (12.4 [3.2-72] vs 3.9 [0.8-20.0] ng/mL, (median [interquartile range], p = 0.0001). In females, leptin levels were significantly higher in pre-diabetic subjects (14.09 [2.8-44.4] ng/mL) than in normoglycaemic subjects (10.2 [0.25-34.8] ng/mL) (p = 0.046). After adjustment for BMI and gender, hip circumference was associated with log leptin (p = 0.006 with R2 = 0.086) among all subjects. CONCLUSION: Leptin is associated with measures of adiposity, hip circumference in particular, in the non-diabetic state among Saudi subjects. The higher leptin level among diabetics and pre-diabetics is not related to differences in anthropometric measures of obesity.

    PMID: 17617917 [PubMed - indexed for MEDLINE]

    PMCID: PMC1933413

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