Reduction of body weight, liver steatosis and expression of stearoyl-CoA desaturase 1 by the isoflavone daidzein in diet-induced obesity

Authors

  • A Crespillo,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
    • These authors contributed equally to the present study.

  • M Alonso,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
    • These authors contributed equally to the present study.

  • M Vida,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
    • These authors contributed equally to the present study.

  • FJ Pavón,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
  • A Serrano,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
  • P Rivera,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
  • Y Romero-Zerbo,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    Search for more papers by this author
  • P Fernández-Llebrez,

    1. Departamento de Biología Celular, Genética y Fisiología, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
    Search for more papers by this author
  • A Martínez,

    1. Institute of Medical Chemistry, the Spanish National Research Council (CSIC), Madrid, Spain
    Search for more papers by this author
  • V Pérez-Valero,

    1. Laboratorio de Bioquímica, Hospital Carlos Haya, Málaga, Spain
    Search for more papers by this author
  • FJ Bermúdez-Silva,

    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    2. CIBER OBN, Instituto de Salud Carlos III, Ministerio de Ciencia e Innovación, Madrid, Spain
    3. Neurocentre Magendie, Bordeaux, France
    Search for more papers by this author
  • J Suárez,

    Corresponding author
    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    2. CIBER OBN, Instituto de Salud Carlos III, Ministerio de Ciencia e Innovación, Madrid, Spain
    Search for more papers by this author
  • FR de Fonseca

    Corresponding author
    1. Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Pabellón de Gobierno, Málaga, Spain
    2. CIBER OBN, Instituto de Salud Carlos III, Ministerio de Ciencia e Innovación, Madrid, Spain
    Search for more papers by this author

Fernando Rodríguez de Fonseca and Juan Suárez, Laboratorio de Medicina Regenerativa. Hospital Carlos Haya. Fundación IMABIS. Avenida Carlos Haya 82, 29010 Málaga, Spain. E-mail: fernando.rodriguez@fundacionimabis.org; juan.suarez@fundacionimabis.org

Abstract

BACKGROUND AND PURPOSE The lack of safe and effective treatments for obesity has increased interest in natural products that may serve as alternative therapies. From this perspective, we have analysed the effects of daidzein, one of the main soy isoflavones, on diet-induced obesity in rats.

EXPERIMENTAL APPROACH Rats made obese after exposure to a very (60%) high fat-content diet were treated with daidzein (50 mg·kg−1) for 14 days. The dose was selected on the basis of the acute effects of this isoflavone on a feeding test. After 14 days, animals were killed and plasma, white and brown adipose tissue, muscle and liver studied for the levels and expression of metabolites, proteins and genes relevant to lipid metabolism.

KEY RESULTS A single treatment (acute) with daidzein dose-dependently reduced food intake. Chronic treatment (daily for 14 days) reduced weight gain and fat content in liver, accompanied by high leptin and low adiponectin levels in plasma. While skeletal muscle was weakly affected by treatment, both adipose tissue and liver displayed marked changes after treatment with daidzein, affecting transcription factors and lipogenic enzymes, particularly stearoyl coenzyme A desaturase 1, a pivotal enzyme in obesity. Expression of uncoupling protein 1, an important enzyme for thermogenesis, was increased in brown adipose tissue after daidzein treatment.

CONCLUSIONS AND IMPLICATIONS These results support the use of isoflavones in diet-induced obesity, especially when hepatic steatosis is present and open a new field of use for these natural products.

Ancillary