SciELO - Scientific Electronic Library Online

 
vol.31 issue5The variability in adherence to dietary treatment and quality of weight loss: overweight and obesityQuality of life in obese patients and change after bariatric surgery medium and long term author indexsubject indexarticles search
Home Pagealphabetic serial listing  

My SciELO

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Nutrición Hospitalaria

On-line version ISSN 1699-5198Print version ISSN 0212-1611

Nutr. Hosp. vol.31 n.5 Madrid May. 2015

https://dx.doi.org/10.3305/nh.2015.31.5.8666 

ORIGINAL / Obesidad

 

Independent and combined influence of the FTO rs9939609 and MC4R rs17782313 polymorphisms on hypocaloric diet induced changes in body mass and composition and energy metabolism in non-morbid obese premenopausal women

Influencia individual y combinada de los polimorfismos genéticos FTO RS9939609 Y MC4R RS17782313 sobre los cambios en la masa y composición corporal y el metabolismo energético inducidos por un tratamiento con dieta hipocalórica en mujeres pre-menopáusicas con obesidad no mórbida

 

 

Idoia Labayen1,2, Javier Margareto2,3, Sara Maldonado-Martin2,4, Ilargi Gorostegi2,4, Maitane Illera1,2, María Medrano1,2, Lurdes Barrenechea2,5 and Eider Larrarte2,3

1Department of Nutrition and Food Science, University of the Basque Country, UPV/EHU, Vitoria, Spain.
2Elikadura, Ariketa fisikoa eta Osasuna, ELIKOS, Nutrition, Exercise and Health, Research group, University of the Basque Country, UPV/EHU, Vitoria, Spain.
3Biomedical Research Area, TECNALIA, Miñano, Spain.
4Department of Physical Education and Sport, University of the Basque Country, UPV/EHU, Vitoria, Spain.
5Departament of Medicine, University of the Basque Country, UPV/EHU, Vitoria, Spain.

 

 


ABSTRACT

Purpose: To examine the independent and combined influence of the FTOrs9939609 and the MC4Rrs17782313 polymorphisms on changes in fat mass (FM), resting energy expenditure (REE), leptin, and thyrotropin (TSH) levels, after a 12-week energy-restricted diet intervention in non-morbid premenopausal obese women.
Methods: Fat mass (dual X-ray absorptiometry), REE (indirect calorimetry) and plasma leptin and thyrotropin levels were measured (before and after the intervention) in 77 obese (BMI: 33.9±2.8kg/m2) women (age: 36.8±7.0y).
Results: There were no significant differences across FTOrs9939609 genotype groups (TT vs. A allele carriers, Ps<0.1) on changes in body mass (-8.6±3.2% vs. -8.7±3.3 %), FM (12.8±4.7% vs. -12.9±6.3%), REE (-11.3±4.7 vs. -9.4±8.1%), leptin (-34.1±25.1% vs. -43.5±24.1%) or TSH (5.2±34.5% vs. -1.7±27.1%) levels. Moreover, it was not observed any significant difference on changes in body mass (-8.6±3.6% vs. -8.9±2.6%), FM (-12.7±6.1% vs. -13.4±5.3%), REE (-9.8±7.4% -9.4±9.4%), leptin (-39.0±26.9% vs. -44.8±18.4%) or TSH (-1.0±30.0% vs. 1.5±26.5%) levels between non-C allele carriers and C allele carriers of the MC4Rrs17782313 (Ps>0.3). Finally, there were no significant difference on changes in body mass and composition, REE, leptin or TSH levels allele risk of the MC4Rrs17782313, carriers of the A allele of the FTOrs9939609 and carriers of both risk alleles after the 12-week energy-restricted diet intervention (Ps>0.1).
Conclusion: Carrying the A risk allele of the FTOrs9939609 and/or the C risk allele of the MC4Rrs17782313 did not influence body mass and FM loss, or REE decrease in obese women after a 12-week energy-restricted diet intervention.

Key words: FTO. MC4R. SNP. Obesity. Resting energy expenditure. Body mass loss. Diet.


RESUMEN

Objetivo: Examinar la influencia individual y combinada de los polimorfismos genéticos FTO rs9939609 y MC4R rs17782313 en los cambios en la masa grasa (MG), gasto energético en reposo (GER), leptina y tirotropina (TSH) tras una intervención de 12 semanas de duración con dieta hipocalórica en mujeres pre-menopáusicas con obesidad no mórbida.
Métodos: Se evaluaron al inicio y al final de la intervención la MG (absorciometría dual de rayos X), el GER (calorimetría indirecta) y los niveles de leptina y TSH en sangre en 77 mujeres (edad: 36.8±7.0 años) obesas (IMC: 33.9±2.8kg/m2).
Resultados: No se observaron diferencias estadísticamente significativas (Ps>0.1) entre las portadores y las no portadoras del alelo A del FTOrs9939609 (TT vs. portadores del alelo) en los cambios en la masa corporal (-8.6±3.2% vs. -8.7±3.3 %), MG (12.8±4.7% vs. -12.9±6.3%), GER (-11.3±4.7 vs. -9.4±8.1%), leptina (-34.1±25.1% vs. -43.5±24.1%) y TSH (5.2±34.5% vs. -1.7±27.1%). Tampoco se observaron diferencias estadísticamente significativas en los cambios en la masa corporal (-8.6±3.6% vs. -8.9±2.6%), MG (-12.7±6.1% vs. -13.4±5.3%), GER (-9.8±7.4% -9.4±9.4%), leptina (-39.0±26.9% vs. -44.8±18.4%) y TSH (-1.0±30.0% vs. 1.5±26.5%) entre las participantes portadoras y no portadoras del alelo C del MC4Rrs17782313 (Ps>0.3). Finalmente, no se encontraron diferencias estadísticamente significativas en los cambios en la masa y composición corporal, el GER, o los niveles de leptina y TSH entre mujeres no portadoras de alelos de riesgo, portadoras del alelo C del MC4Rrs17782313, portadoras del alelo A del FTOrs9939609 y portadoras de los dos alelos de riesgo (A y C) al final de las 12 semanas de intervención con dieta hipocalórica (Ps>0.1).
Conclusión: Ser portador del alelo de riesgo A del FTOrs9939609 y/o del alelo de riesgo C del MC4Rrs17782313 no influye en la pérdida de masa grasa o en el descenso del GER en mujeres obesas tras 12 semanas de intervención con dieta hipocalórica.

Palabras clave: FTO. MC4R. SNP. Obesidad. Gasto energético en reposo. Pérdida de peso. Dieta.


 

 

http://scielo.isciii.es/pdf/nh/v31n5/16originalobesidad08.pdf

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License