[Congenital deficiency of thyroxine binding globulin (TBG). Study of 3 families].
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Biomedical subjects
Publications and source records attributed to V De Filippis.
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A study of endemic goitre was carried out in the western part of the province of Foggia (Daunia's pre-Appennines). About 50% of a total of 2719 children aged 6-15 years examined in the agricultural and hill towns of Accadia, Bovino, Candela, Deliceto and Sant'Agata di Puglia (500 to 800 m above sea level), presented a thyroid enlargement (usually of Grade 1). Urinary creatinine values were normal, while urinary iodine was low: 37.7 +/- 28.39 mug/g creatinine (mean +/- SD for 319 subjects). Serum levels of thyroid hormones were normal: T4 = 7.89 +/- 2.61 mug/dl; T3 = 114.72 +/- 40 ng/dl; T3 (T4 X 100) = 0.166 +/- 0.09. Subjects with Grade 2 thyroid enlargement had significant lower urinary iodine and serum T4, and higher T3 and T3/T4 ratio than children without goitre (Grade 0). Serum thyrotropin was rather high (3.79 +/- 4.17 muU/ml), but bore no straight relation to the thyroid size; in subjects with Grade 2 thyroids there was an inverse relationship between plasma T4 and TSH levels. Drinking water iodine was generally low (2-3 mug/l), though some richer sources (18, 38, 66 mug/l) were noted. Iodine contents of locally produced foodstuffs were below those found in food on Turin markets.
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