Iodine 131
Mostrando 1-12 de 55 artigos, teses e dissertações.
-
1. The first postoperative-stimulated serum thyroglobulin is a prognostic factor for thyroid microcarcinomas
Resumo Introdução: A tireoglobulina estimulada pelo hormônio tireoestimulante endógeno coletada após tireoidectomia total é um preditor útil de melhor prognóstico em pacientes com carcinomas diferenciados de tireoide em geral, mas os estudos com microcarcinomas são escassos. Objetivo: Avaliar se a primeira medida pós-operatória de tireoglobulina
Braz. j. otorhinolaryngol.. Publicado em: 2019-02
-
2. What determines mortality in malignant pheochromocytoma? – Report of a case with eighteen-year survival and review of the literature
SUMMARY Pheochromocytoma (PCC) is a tumor derived from adrenomedullary chromaffin cells. Prognosis of malignant PCC is generally poor due to local recurrence or metastasis. We aim to report a case of malignant PCC with 18-year survival and discuss which factors may be related to mortality and long-term survival in malignant pheochromocytoma. The patient, a 4
Arch. Endocrinol. Metab.. Publicado em: 2018-03
-
3. Intrathoracic stomach mimicking bone metastasis from thyroid cancer in whole-body iodine-131 scan diagnosed by SPECT/CT
SUMMARY The whole-body iodine-131 scintigraphy is an imaging technique in monitoring patients with a history of thyroid cancer. Although the rate of false positives is negligible, it is not nonexistent. We report the case of an intervened and treated patient for thyroid cancer with good clinical and biochemical response. Scintigraphic findings were consisten
Arch. Endocrinol. Metab.. Publicado em: 13/02/2017
-
4. Iodine-131 treatment of thyroid cancer cells leads to suppression of cell proliferation followed by induction of cell apoptosis and cell cycle arrest by regulation of B-cell translocation gene 2-mediated JNK/NF-κB pathways
Iodine-131 (131I) is widely used for the treatment of thyroid-related diseases. This study aimed to investigate the expression of p53 and BTG2 genes following 131I therapy in thyroid cancer cell line SW579 and the possible underlying mechanism. SW579 human thyroid squamous carcinoma cells were cultured and treated with 131I. They were then assessed for 131I
Braz J Med Biol Res. Publicado em: 16/01/2017
-
5. Low iodine diet does not improve the efficacy of radioiodine for the treatment of Graves’ disease
Objective Consuming a low-iodine diet (LID) is a widely accepted practice before administering radioiodine (131I) to evaluate and to treat thyroid disease. Although this procedure is well established for the management of patients with differentiated thyroid cancer, its use in patients with benign disease is unclear. So, we aimed to evaluate the influence
Arch. Endocrinol. Metab.. Publicado em: 25/09/2015
-
6. Abnormal radioiodine uptake on post-therapy whole body scan and sodium/iodine symporter expression in a dermoid cyst of the ovary: report of a case and review of the literature
In patients affected by differentiated thyroid cancer, the whole-body scan (WBS) with 131-radioiodine, especially when performed after a therapeutic activity of131I, represents a sensitive procedure for detecting thyroid remnant and/or metastatic disease. Nevertheless, a wide spectrum of potentially pitfalls has been reported. Herein we describe a 63-year-ol
Arch. Endocrinol. Metab.. Publicado em: 2015-08
-
7. Is radioactive iodine- 131 treatment related to the occurrence of non-synchronous second primary malignancy in patients with differentiated thyroid cancer?
Objective Much controversy relates to the risk of non-synchronous second primary malignancies (NSSPM) after radioactive iodine treatment (RAI-131) in differentiated thyroid cancer (DTC) patients. This study evaluated the relationship between RAI-131 and NSSPM in DTC survivors with long-term follow-up. Materials and methods Retrospective analysis of 413 D
Arch. Endocrinol. Metab.. Publicado em: 24/07/2015
-
8. Profile of salivary gland flow dysfunctions in patients with differentiated thyroid carcinoma submitted to radioiodine therapy
AIM: To evaluate the effects of radioiodine therapy on salivary flow in patients with differentiated thyroid cancer. METHODS: A sample comprising 88 patients submitted to ablation with iodine 131 was included in the study. The patients were submitted to sialometry and evaluation of the presence of xerostomia before, 10 days and 3 months after radioiodine the
Braz. J. Oral Sci.. Publicado em: 2013-09
-
9. Comparação entre métodos de fixação de iodo radioativo em substrato de prata para confecção de fontes utilizadas em Braquiterapia / Comparison between methods for fixing radioactive iodine in silver substrate for manufacturing brachytherapy sources
Dentre as diversas formas de se tratar o câncer de próstata, a braquiterapia com sementes de iodo-125 é uma opção que apresenta ótimos resultados e menor ocorrência de efeito colateral. No presente trabalho diferentes métodos de deposição de iodo radioativo em substrato de prata foram comparados com o propósito de eleger a alternativa mais adequad
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2012
-
10. Purificação de 123I e 131I para marcação de biomoléculas / 123I and 131I purification for biomolecules labeling
O 123I e 131I são dois radioisótopos de iodo amplamente utilizados em medicina nuclear. O 123I é utilizado para diagnóstico através da técnica de SPECT e produzido no IPEN em cíclotron a partir da reação 124Xe (p,2n)123Cs->123Xe->123I. Já o 131I pode ser utilizado tanto para o diagnóstico quanto para o tratamento devido às suas características f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2011
-
11. Cálculo dos parâmetros dosimétricos de sementes de braquiterapia de 125I para implantes permanentes em próstata atraves do método de Monte Carlo / Monte Carlo calculation of dosimetric parameters of 125I brachytherapy seeds used in permanent prostate implants
No tratamento do câncer de próstata, há um crescente interesse na técnica do implante permanente de sementes, na qual as sementes radioativas são inseridas na próstata do paciente permitindo a entrega de doses elevadas e preservação dos órgãos de risco vizinhos. Estas sementes são normalmente feitas utilizando-se um de três radioisótopos: 125I,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/02/2011
-
12. Follow-up of patients treated with retinoic acid for the control of radioiodine non-responsive advanced thyroid carcinoma
During thyroid tumor progression, cellular de-differentiation may occur and it is commonly accompanied by metastatic spread and loss of iodine uptake. Retinoic acid (RA) administration might increase iodine uptake in about 40% of patients, suggesting that RA could be a promising therapeutic option for radioiodine non-responsive thyroid carcinoma, although a
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-01