BACKGROUND AND PURPOSE: The evaluation of the leptin:adiponectin ratio (L:A) has been suggested as an atherosclerotic index in patients with type 2 diabetes and a useful parameter to assess insulin resistance in patients with and without diabetes. METHODS: We investigated, therefore, the relationship between L:A ratio and intima media thickness (IMT), an independent predictor of cardiovascular disease, in 110 healthy males. RESULTS: L:A ratio was significantly correlated to body mass index, waist, hip, waist-to-hip ratio, systolic blood pressure, IMT, high-density lipoprotein, apolipoprotein A-I, glucose, and the homeostasis model of insulin resistance-revised. No significant correlation was observed with age, diastolic blood pressure, low-density lipoprotein, triglycerides, apolipoprotein B, ApoB/ApoA-I ratio, insulin, alanine transaminase, gamma-glutamyl-transferase, and resistin. In addition, when the relationship between IMT and adiponectin or leptin alone was analyzed, only leptin plasma levels significantly associated with IMT (r=0.301, P<0.01). In a multiple regression analysis including in the statistical model the risk factors known to affect IMT (age, systolic blood pressure, diastolic blood pressure, high-density lipoprotein cholesterol, triglycerides, total cholesterol, body mass index, glucose, and L:A ratio), we observed that only age, L:A, and glucose were independent predictors of IMT. As expected, obese subjects (body mass index >30 kg/m(2)) showed a significantly higher L:A ratio compared with nonobese subjects (1.20 versus 0.42, respectively, P<0.001); in addition, subjects with the metabolic syndrome showed a significantly higher L:A ratio level (0.79) compared with subjects without (0.52) (P<0.01). CONCLUSIONS: We show here that the L:A ratio is a powerful independent predictor of IMT in healthy subjects and correlates with several anthropometric, metabolic, and clinical parameters better than each single adipokine

Leptin : adiponectin ratio is an independent predictor of intima media thickness of the common carotid artery / G.D. Norata, S. Raselli, L. Grigore, K. Garlaschelli, E. Dozio, P. Magni, A.L. Catapano. - In: STROKE. - ISSN 0039-2499. - 38:10(2007 Oct), pp. 2844-2846.

Leptin : adiponectin ratio is an independent predictor of intima media thickness of the common carotid artery

G.D. Norata
Primo
;
S. Raselli
Secondo
;
K. Garlaschelli;E. Dozio;P. Magni
Penultimo
;
A.L. Catapano
Ultimo
2007

Abstract

BACKGROUND AND PURPOSE: The evaluation of the leptin:adiponectin ratio (L:A) has been suggested as an atherosclerotic index in patients with type 2 diabetes and a useful parameter to assess insulin resistance in patients with and without diabetes. METHODS: We investigated, therefore, the relationship between L:A ratio and intima media thickness (IMT), an independent predictor of cardiovascular disease, in 110 healthy males. RESULTS: L:A ratio was significantly correlated to body mass index, waist, hip, waist-to-hip ratio, systolic blood pressure, IMT, high-density lipoprotein, apolipoprotein A-I, glucose, and the homeostasis model of insulin resistance-revised. No significant correlation was observed with age, diastolic blood pressure, low-density lipoprotein, triglycerides, apolipoprotein B, ApoB/ApoA-I ratio, insulin, alanine transaminase, gamma-glutamyl-transferase, and resistin. In addition, when the relationship between IMT and adiponectin or leptin alone was analyzed, only leptin plasma levels significantly associated with IMT (r=0.301, P<0.01). In a multiple regression analysis including in the statistical model the risk factors known to affect IMT (age, systolic blood pressure, diastolic blood pressure, high-density lipoprotein cholesterol, triglycerides, total cholesterol, body mass index, glucose, and L:A ratio), we observed that only age, L:A, and glucose were independent predictors of IMT. As expected, obese subjects (body mass index >30 kg/m(2)) showed a significantly higher L:A ratio compared with nonobese subjects (1.20 versus 0.42, respectively, P<0.001); in addition, subjects with the metabolic syndrome showed a significantly higher L:A ratio level (0.79) compared with subjects without (0.52) (P<0.01). CONCLUSIONS: We show here that the L:A ratio is a powerful independent predictor of IMT in healthy subjects and correlates with several anthropometric, metabolic, and clinical parameters better than each single adipokine
leptin; adiponectin; intima-media thickness
Settore MED/13 - Endocrinologia
Settore BIO/14 - Farmacologia
Settore MED/04 - Patologia Generale
Settore MED/05 - Patologia Clinica
Settore MED/46 - Scienze Tecniche di Medicina di Laboratorio
ott-2007
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/39569
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