Body fat distribution and metabolic consequences — Examination opportunities in dogs

Müller, Linda and Kollár, Eszter and Balogh, Lajos and Pöstényi, Zita and Márián, Teréz and Garai, Ildikó and Balkay, László and Trencsényi, György and Thuróczy, Julianna (2014) Body fat distribution and metabolic consequences — Examination opportunities in dogs. Acta Veterinaria Hungarica, 62 (2). pp. 169-179. ISSN 0236-6290

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Abstract

The relationship between metabolic disorders and the distribution of fat in different body regions is not clearly understood in humans. The aim of this study was to develop a suitable method for assessing the regional distribution of fat deposits and their metabolic effects in dogs. Twenty-five dogs were subjected to computed tomographic (CT) imaging and blood sampling in order to characterise their metabolic status. The different fat areas were measured on a cross-sectional scan, and the animals’ metabolic status was evaluated by measuring fasting glucose, insulin and leptin levels. The volume of visceral adipose tissue is the main determinant of leptin levels. The correlation of visceral fat volume and leptin concentration was found to be independent of insulin levels or the degree of insulin resistance. There was a positive correlation between the visceral to subcutaneous fat volume ratio and serum insulin concentration, and a similar trend was observed in the relationship of fat ratio and insulin resistance. The distribution of body fat essentially influences the metabolic parameters in dogs, but the effects of adiposity differ between humans and dogs. The findings can facilitate a possible extrapolation of results from animal studies to humans with regard to the metabolic consequences of different obesity types.

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