Relationship of thyroid function with obesity and type 2 diabetes in euthyroid Tunisian subjects.
Endocr Res
; 38(1): 15-23, 2013.
Article
en En
| MEDLINE
| ID: mdl-22746188
ABSTRACT
OBJECTIVES:
Although a relationship between obesity and metabolic consequences with thyroid function has been reported, the underlying pathogenesis is not completely known. In the current study, we evaluated the thyroid function in obese and/or diabetic patients compared to healthy normal weight peers, exploring the possible association between components of metabolic syndrome and thyroid function parameters.METHODS:
We recruited 108 subjects (56 male and 52 female). In all subjects, thyroid stimulating hormone (TSH), free thyroxine (FT4), fasting plasma levels of insulin and glucose, homeostasis model assessment for insulin resistance, and obesity parameters were assessed.RESULTS:
We found that circulating levels of TSH and FT4 were significantly increased in overweight and obese subjects. However, the data do not reveal any change of these hormones in diabetics. Multivariate linear regression analysis showed that TSH was directly associated with both obesity and insulin resistance parameters (p < 0.05). FT4 was negatively associated only with obesity parameters (p < 0.05).CONCLUSIONS:
Our data strongly support that the changes of thyroid hormones may be influenced by adiposity and its metabolic consequences, such as insulin resistance. This relationship can be explained by a cross talk between adipose tissue release and thyroid function. Nevertheless, metformin treatment seems to affect thyroid function in diabetic patients by maintaining plasma thyrotropin levels to subnormal levels.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Glándula Tiroides
/
Diabetes Mellitus Tipo 2
/
Obesidad
Límite:
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Africa
Idioma:
En
Revista:
Endocr Res
Asunto de la revista:
ENDOCRINOLOGIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Túnez