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Effects of physical training on serum and pituitary growth hormone contents in diabetic rats

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Abstract

The present study investigated the effects of moderate physical training on some of the parameters in the GH-IGF axis in experimental diabetic rats. Male Wistar rats were allocated into the following groups: sedentary control, trained control, sedentary diabetic, trained diabetic. Diabetes was induced by alloxan (32 mg/kg, b.w. iv). The physical training protocol consisted of 1 h swimming session/day, 5 days/week for 8 weeks supporting a load corresponding to 90% of maximal lactate steady state. After the experimental period, blood was collected to measure serum glucose, insulin, triglycerides, albumin, insulin-like growth factors-I (IGF-I), and growth hormone (GH). Pituitary gland was removed for GH quantification. Diabetes increased blood glucose and triglycerides and decreased insulin, IGF-I, serum and pituitary GH. Physical training decreased glucose and triglycerides, and also counteracted the reduction of serum IGF-I in diabetic rats. In conclusion, physical training recovered serum IGF-I showing no alteration of serum or pituitary GH levels.

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Authors and Affiliations

  1. Department of Physical Education, São Paulo State University (UNESP), Avenida 24A no. 1515, Caixa Postal 199, Bela Vista, Rio Claro, São Paulo, CEP 13506-900, Brazil

    José Alexandre Curiacos de Almeida Leme, Michel Barbosa de Araújo, Leandro Pereira de Moura, Ricardo José Gomes, Rodrigo Ferreira de Moura, Gustavo Puggina Rogatto, Maria Alice Rostom de Mello & Eliete Luciano

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  1. José Alexandre Curiacos de Almeida Leme
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  2. Michel Barbosa de Araújo
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  3. Leandro Pereira de Moura
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  4. Ricardo José Gomes
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  5. Rodrigo Ferreira de Moura
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  6. Gustavo Puggina Rogatto
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  7. Maria Alice Rostom de Mello
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  8. Eliete Luciano
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Correspondence to José Alexandre Curiacos de Almeida Leme.

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de Almeida Leme, J.A.C., de Araújo, M.B., de Moura, L.P. et al. Effects of physical training on serum and pituitary growth hormone contents in diabetic rats. Pituitary 12, 304–308 (2009). https://doi.org/10.1007/s11102-009-0178-y

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