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NCT number NCT03300388
Study type Interventional
Source Clinica Universidad de Navarra, Universidad de Navarra
Contact María J Moreno-Aliaga, PhD
Phone 0034948425600
Email mjmoreno@unav.es
Status Recruiting
Phase N/A
Start date August 21, 2017
Completion date December 2022

Clinical Trial Summary

Dysfunction of adipose tissue in obesity, inflammation and aging: mechanisms and effects of physical exercise and omega-3 fatty acids.


Clinical Trial Description

Obesity is associated with the development of metabolic diseases including type 2 diabetes and immune disorders. Obesity also leads to reduced lifespan and accelerated cellular processes similar to those of aging. On the other hand, aging is accompanied by the accumulation of visceral fat and the metabolic complications associated to obesity. Both obesity and aging have been identified as chronic, low-grade inflammation disorders. "Inflammaging" has been considered as a risk factor for the development of most of age-related diseases, and therefore for morbidity and mortality in the elderly. However, the specific mechanisms leading to inflammaging remain largely unknown.

Resolution of inflammation is an active process which involves production of several series of specialized proresolving lipid mediators such lipoxins, resolvins, protectins and maresins. The hypothesis of this trial is that the chronic inflammation associated to obesity and aging could be the result of an impaired production of these specialized proresolutive lipid mediators, mainly in adipose tissue. On the other hand, the investigators also propose that altered transcriptional pattern might be responsible for the development of the inflammation associated with the pathophysiology of obesity and aging. Therefore the first general aim of the current project will be to characterize the mechanisms involved in the unresolved chronic inflammation that arises during obesity and aging.

Because n-3 PUFAs serve as substrates for the synthesis of specialized pro-resolving lipid mediators and are important transcriptional regulators, the investigators propose that dietary supplementation with n-3 PUFAs, alone or in combination with regular physical exercise could promote the resolution of local and systemic inflammation and the subsequent metabolic disorders associated to obesity and aging. A trial in overweight/obese postmenopausal women will be carried out to characterize the potential beneficial effects of regular administration of a DHA-rich dietary supplement and/or a progressive resistance training (PRT) program on weight and fat mass loss, insulin sensitivity, inflammatory markers and gene/miRNA/lipidomic/metabolimic profile in serum and/or adipose tissue. Moreover, changes in gut microbiota will be also addressed.


Study Design


Related Conditions & MeSH terms


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