Hrvatska znanstvena bibliografija (CROSBI)



Pregled bibliografske jedinice broj: 310886

Časopis

Autori: Torlak, Vesela; Zemunik, Tatijana; Modun, Darko; Čapkun, Vesna; Pešutić-Pisac, Valdi; Markotić, Anita; Pavela-Vrančić, Maja; Staničić, Ante
Naslov: I-131-induced changes in rat thyroid gland function
( I-131-induced changes in rat thyroid gland function )
Izvornik: Brazilian Journal of Medical & Biological Research (0100-879X) 40 (2007), 8; 1087-1094
Vrsta rada: članak
Ključne riječi: thyroid gland; 131I; hormones; histopathology; T3; T4; TSH
( thyroid gland; 131I; hormones; histopathology; T3; T4; TSH )
Sažetak:
Therapeutic doses of (131)I administered to thyrotoxic patients may cause thyroid failure. The present study used a rat model to determine thyroid function after the administration of different doses of (131)I (64-277 microCi). Thirty male Fisher rats in the experimental group and 30 in the control group (untreated) were followed for 6 months. The animals were 4 months old at the beginning of the experiment and were sacrificed at an age of 9 months. Hormone concentration was determined before (131)I administration (4-month-old animals) and three times following (131)I administration, when the animals were 7, 8, and 9 months old. The thyroid glands were removed and weighed, their volume was determined and histopathological examination was performed at the end of the experiment. Significant differences in serum triiodothyronine and thyroid-stimulating hormone concentration, measured at the age of 7, 8, and 9 months, were found in the experimental group. During aging of the animals, the concentration of thyroxin fell from 64.8 +/- 8.16 to 55.0 +/- 6.1 nM in the control group and from 69.4 +/- 6.9 to 25.4 +/- 3.2 nM in the experimental group. Thyroid gland volume and weight were significantly lower in the experimental than in the control group. Thyroid glands from the experimental group showed hyaline thickness of the blood vessel wall, necrotic follicles, a strong inflammatory reaction, and peeling of necrotic cells in the follicles. In conclusion, significant differences in hormone levels and histopathological findings indicated prolonged hypothyroidism after (131)I administration to rats, which was not (131)I dose dependent.
Projekt / tema: 216-0000000-0085, 177-0000000-2962, 216-1080315-0293, 216-2160133-0066
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Temeljne medicinske znanosti
URL cjelovitog teksta:
Google Scholar: I-131-induced changes in rat thyroid gland function
Upisao u CROSBI: Tatijana Zemunik (tzemunik@bsb.mefst.hr), 12. Stu. 2007. u 14:46 sati