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Abstract Title:

Voluntary exercise improves murine dermal connective tissue status in high-fat diet-induced obesity.

Abstract Source:

Arch Dermatol Res. 2017 Apr ;309(3):209-215. Epub 2017 Feb 8. PMID: 28180933

Abstract Author(s):

Kende Lőrincz, Dóra Haluszka, Norbert Kiss, Nóra Gyöngyösi, András Bánvölgyi, Róbert Szipőcs, Norbert M Wikonkál

Article Affiliation:

Kende Lőrincz

Abstract:

Obesity is a risk factor for several cardiovascular and metabolic diseases. Its influence on the skin is less obvious, yet certain negative effects of adipose tissue inflammation on the dermis have been suggested. Excess weight is closely associated with sedentary behavior, so any increase in physical activity is considered beneficial against obesity. To investigate the effects of obesity and physical exercise on the skin, we established a mouse model in which mice were kept either on a high-fat diet or received standard chow. After the two groups achieved a significant weight difference, physical exercise was introduced to both. Animals were given the opportunity to perform voluntary exercise for 40 min daily in a hamster wheel for a period of 8 weeks. We evaluated the status of the dermis at the beginning and at the end of the exercise period by in vivo nonlinear microscopy. Obese mice kept on high-fat diet lost weight steadily after they started to exercise. In the high-fat diet group, we could detect significantly larger adipocytes and a thicker layer of subcutaneous tissue; both changes started to normalize after exercise. Nonlinear microscopy revealed an impaired collagen structure in obese mice that improved considerably after physical activity was introduced. With the ability todetect damage on collagen structure, we set out to address the question whether this process is reversible. With the use of a novel imaging method, we were able to show the reversibility of connective tissue deterioration as a benefit of physical exercise.

Study Type : Animal Study
Additional Links
Therapeutic Actions : Exercise : CK(1278) : AC(196)

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Sayer Ji
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