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EnglishObjective: The present investigation was aimed to evaluate the effect of subclinical hypothyroidism and obesity on bone mineral content (BMC) in different body segments. Methods: Thirty-two premenopausal women (age: 37 +/- 9.9 years), with a wide range in body mass index (BMI), were studied. Subclinical hypothyroidism was defined by a basal TSH greater than or equal to4 muU/l and/or a TRH-stimulated peak greater than or equal to30 muU/l. For each subject, weight, height, BMI (weight/height(2)) and the waist/hip ratio were measured. Total BMC, total bone mineral density (BMD), leg BMC, leg BMD, trunk BMC, trunk BMD, arm BMC and arm BMD were determined using dual-energy X-ray absorptiometry. Thyroid function (basal and TRH-stimulated TSH, free T-3 and free T-4) were determined from fasting blood samples for all subjects. Results: Anova was conducted within all the groups to observe the effect of thyroid status and/or obesity on BMC and BMD. There was no statistical difference for age. Total BMC was affected by obesity (p < 0.05) but not by thyroid status, BMD of the legs was significantly influenced both by thyroid function and obesity (p < 0.01); total BMD was affected by hypothyroid status (p < 0.05). A direct relationship between leg BMD and TSH was demonstrated. Conclusion: Subclinical thyroid hypofunction and obesity seem to affect BMD differently in the body segments. An influence of gravitational force seems necessary in order to make evident the effect of subclinical hypothyroidism on bone. A condition of subclinical hypothyroidism should be considered when evaluating subjects for osteoporosis, since a BMD measured at the femoral neck may induce underestimation of initial osteoporosis. Copyright (C) 2002 S. Karger AG, Basel.
| Tipologia: | Articolo su rivista |
| Citazione: | Bertoli, A., Fusco, A., Andreoli, A., Magnani, A., Tulli, A., Lauro, D., et al. (2002). Effect of subclinical hypothyroidism and obesity on whole-body and regional bone mineral content. HORMONE RESEARCH, 57(2009/04/03 00:00:00.000), 79-84. |
| IF: | Con Impact Factor ISI |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore MED/13 - Endocrinologia Settore MED/09 - Medicina Interna |
| Revisione (peer review): | Sì, ma tipo non specificato |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1159/000057956 |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 2002 |
| Titolo: | Effect of subclinical hypothyroidism and obesity on whole-body and regional bone mineral content |
| Autori: | |
| Autori: | Bertoli, A; Fusco, A; Andreoli, A; Magnani, A; Tulli, A; Lauro, D; De Lorenzo, A |
| Appare nelle tipologie: | 01 - Articolo su rivista |
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