Impact of an exercise program on acylcarnitines in obesity: a prospective controlled study

Rodríguez Gutiérrez, René y Lavalle González, Fernando Javier y Martínez Garza, Laura Elia y Landeros Olvera, Erick Alberto y López Alvarenga, Juan Carlos y Torres Sepúlveda, María del Rosario y González González, José Gerardo y Mancillas Adame, Leonardo Guadalupe y Salazar González, Bertha Cecilia y Villarreal Pérez, Jesús Zacarías (2012) Impact of an exercise program on acylcarnitines in obesity: a prospective controlled study. Journal of the International Society of Sports Nutrition, 9 (22). pp. 1-8. ISSN 1550-2783

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URL o página oficial: http://www.jissn.com/content/9/1/22

Resumen

Background: Acylcarnitine (AC) transport dysfunction into the mitochondrial matrix is one of the pathophysiological mechanisms of type 2 diabetes mellitus (DM). The effect of an aerobic exercise (AE) program on this condition in obese subjects without DM is unclear. Methods: A prospective, randomized, longitudinal, interventional study in a University Research Center involved a 10-week AE program in 32 women without DM and a body mass index (BMI) greater than 27 kg/m2. (Cases n = 17; Controls n = 15). The primary objective was to evaluate the influence of a controlled AE program on beta-oxidation according to modifications in short, medium, and long-chain ACs. Secondary objectives were to define the behavior of amino acids, and the correlation between these modifications with metabolic and anthropometric markers. Results: The proportion of dropouts was 17% and 6% in controls and cases, respectively. In cases there was a significant reduction in total carnitine (30.40 [95% CI 28.2 to 35.6]) vs. (29.4 [CI 95% 25.1 to 31.7]) p=0.0008 and longchain AC C14 (0.06 [95% CI 0.05 to 0.08]) vs. (0.05 [95% CI 0.05 to 0.09]) p=0.005 and in C18 (0.31 [95% CI 0.27 to 0.45]) vs. (0.28 [95% CI 0.22 to 0.32]) p=0.03. Free fatty acid levels remained without change during the study in both groups. Conclusion: In conclusion, a controlled 10-week AE program improved beta-oxidation by reducing long-chain ACs. This finding highlights the importance that AE might have in avoiding or reverting lipotoxicity, and in consequence, improving insulin sensitivity and pancreatic beta cell functional reserve.

Tipo de elemento:

Article

Palabras claves no controlados:

Beta-oxidation, Aerobic exercise, Diabetes mellitus, Overweight, Obesity, Lipotoxicity

Materias:

R Medicina > RT Enfermería

Divisiones:

Enfermería

Usuario depositante:

Admin Eprints

Creadores:

Creador	Email	ORCID
Rodríguez Gutiérrez, René	rodriguezgutierrez.rene@mayo.edu	orcid.org/0000-0002-3022-5302
Lavalle González, Fernando Javier	drfernandolavalle@hotmail.com	NO ESPECIFICADO
Martínez Garza, Laura Elia	NO ESPECIFICADO	NO ESPECIFICADO
Landeros Olvera, Erick Alberto	NO ESPECIFICADO	NO ESPECIFICADO
López Alvarenga, Juan Carlos	NO ESPECIFICADO	NO ESPECIFICADO
Torres Sepúlveda, María del Rosario	NO ESPECIFICADO	NO ESPECIFICADO
González González, José Gerardo	gerardo.gonzalezgzz@uanl.edu.mx	orcid.org/0000-0002-6609-9483
Mancillas Adame, Leonardo Guadalupe	leomancillas@gmail.com	NO ESPECIFICADO
Salazar González, Bertha Cecilia	bertha.salazargn@uanl.edu.mx	orcid.org/0000-0002-6610-8052
Villarreal Pérez, Jesús Zacarías	NO ESPECIFICADO	orcid.org/0000-0002-6814-062X