OBJECTIVE: To evaluate Transforming Growth Factor beta1, (TGF-beta1) plasma concentrations and the possible relationship between this growth factor and various hormones in obese women. DESIGN: Case-control study. SETTING: Outpatient's Service for the Prevention and Treatment of Obesity at the University Hospital. SUBJECTS: Twenty-five women with mild to moderate obesity, and 15 non-obese healthy women were used as controls. MEASUREMENTS: Evaluation of TGF-beta1, insulin, prolactin, sex-hormone binding globulin, androstenedione, free triiodothyronine, free tetraiodothyronine, thyroid-stimulating hormone, dehydroepiandrosterone-sulfate, testosterone, insulin-like growth factor 1, cortisol and adrenocorticotropic hormone plasma concentrations in obese women. Blood samples were taken from fasting subjects for the determination of the above parameters. RESULTS: In obese women plasma TGF-beta1 concentrations were lower than in controls. The obese subjects also had lower GH, IGF-1 and SHBG plasma concentrations and increased insulinaemia. A positive correlation was found between TGF-beta1 and both IGF-1 (r = 0.52; P < 0.01) and DHEA-S (r = 0.43; P < 0.05), while a negative correlation was found between TGF-beta1 and SHBG (r = -0.49; P < 0.05). CONCLUSIONS: The reduction in TGF-beta1, an antilipogenic factor, may play a role in the pathogenesis of obesity and could be involved in the development of some obesity-related endocrine alterations.
Titolo: | Reduced plasma concentrations of transforming growth factor beta1 (TGF-beta1) in obese women. |
Autori: | |
Data di pubblicazione: | 1997 |
Rivista: | |
Abstract: | OBJECTIVE: To evaluate Transforming Growth Factor beta1, (TGF-beta1) plasma concentrations and the possible relationship between this growth factor and various hormones in obese women. DESIGN: Case-control study. SETTING: Outpatient's Service for the Prevention and Treatment of Obesity at the University Hospital. SUBJECTS: Twenty-five women with mild to moderate obesity, and 15 non-obese healthy women were used as controls. MEASUREMENTS: Evaluation of TGF-beta1, insulin, prolactin, sex-hormone binding globulin, androstenedione, free triiodothyronine, free tetraiodothyronine, thyroid-stimulating hormone, dehydroepiandrosterone-sulfate, testosterone, insulin-like growth factor 1, cortisol and adrenocorticotropic hormone plasma concentrations in obese women. Blood samples were taken from fasting subjects for the determination of the above parameters. RESULTS: In obese women plasma TGF-beta1 concentrations were lower than in controls. The obese subjects also had lower GH, IGF-1 and SHBG plasma concentrations and increased insulinaemia. A positive correlation was found between TGF-beta1 and both IGF-1 (r = 0.52; P < 0.01) and DHEA-S (r = 0.43; P < 0.05), while a negative correlation was found between TGF-beta1 and SHBG (r = -0.49; P < 0.05). CONCLUSIONS: The reduction in TGF-beta1, an antilipogenic factor, may play a role in the pathogenesis of obesity and could be involved in the development of some obesity-related endocrine alterations. |
Handle: | http://hdl.handle.net/11570/1910913 |
Appare nelle tipologie: | 14.a.1 Articolo su rivista |