• Title/Summary/Keyword: ${131}^I$

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Studies on Efficacy of Crude Drug by Processing(III): Effect of Paeoniae Radix alba on CNS and Isolated Ileum (생약의 수치(修治)에 따른 약효연구(제3 보) : 백작약(白芍藥)이 중추신경계 및 적출장관에 미치는 영향)

  • Hong, Nam-Doo;Rho, Young-Soo;Cho, Young-Whan;Ju, Soo-Man
    • Journal of Pharmaceutical Investigation
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    • v.16 no.3
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    • pp.124-131
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    • 1986
  • Pharmacological activities of Paeoniae Radix alba were studied with water extract (F-I), parched preparation (F-II) and 25% ethanol-treated preparation (F-III) of it. The results were summerized as follows; 1) Analgesic actions were recognized with F-I, F-II and F-III. 2) Sedative actions were recognized with F-I and F-III. 3) Prolonged effect of sleeping time were recognized significantly with F-I and F-III. 4) Antipyretic actions were recognized with F-1, F-II and F-III in rabbits. 5) F-I, F-II and F-III showed the antagonic action against contraction of isolated-ileum induced by acetylcholine, barium chloride and histamine in mice and guinea-pigs.

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Korean-specific iodine S values for use in internal dosimetry

  • Tae-Eun Kwon;Yoonsun Chung;Choonsik Lee
    • Nuclear Engineering and Technology
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    • v.55 no.12
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    • pp.4659-4663
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    • 2023
  • The use of iodine S values derived using the International Commission Radiological Protection (ICRP) phantoms may introduce significant bias in internal dosimetry for Koreans due to anatomical variability. In the current study, we produced an extensive dataset of Korean S values for selected five iodine radioisotopes (I-125, I-129, I131, I-133, and I-134) for use in radiation protection. To calculate S values, we implemented Monte Carlo simulations using the Mesh-type Reference Korean Phantoms (MRKPs), developed in a high-quality/fidelity mesh format. Noticeable differences were observed in S value comparisons between the Korean and ICRP reference phantoms with ratios (Korean/ICRP) widely ranging from 0.16 to 6.2. The majority of S value ratios were lower than the unity in Korean phantoms (interquartile range = 0.47-1.28; mean = 0.96; median = 0.69). The S values provided in the current study will be extensively utilized in iodine internal dosimetry for Koreans.

An Evaluation by TSH Radioimmunoassay on Familial Thyroid Disorders (가족 발생적인 갑상선이상의 방사성면역 측정법에 의한 TSH 평가)

  • Kim, Ji-Yeul
    • The Korean Journal of Nuclear Medicine
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    • v.23 no.1
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    • pp.1-6
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    • 1989
  • The occurrence of thyroid disorders is connected with iodine deficiency, defective synthesis or releasing of thyroid hormone and endemicity. Genetic factors are known as a single gene defects, interaction of multiple genes with environmental factors, as well as chromosomal aberrations. Diofnosis thyroid disorders is enforced by I-131 uptake test, thyroid scanning with I-131 or Tc-99 m and serum radioimmunoassays of T3, T4, free T4 and TSH. They were largely classified as hypothyroidism, hyperthyroidism, simple goiter and normal. The pedigree of 58 families was drawn by propositus, and then the correlation between thyroid disorders and TSH levels was analyzed. The results are as follows: 1) The offsprings and their mothers of 15 families were hypothyroidism, THS level was 5 folds for offsprings and 4 folds for mothers in comparison with control group. 2) 13 families were hyperthyyroidism in siblings but their mothers were normal in thyroid function, TSH level of the siblings was lower than control group. 3) Though the offsprings and their mothers of 10 families were similar to TSH level of control group, they are all simple goiter, familial thyroid disorders, in other thyroid function test. The familial thyroid disorders suggested that these transmitted from mothers to offsprings with X-linked dominant or autosomal dominant inheritance.

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Acute Myelogenous Leukemia Developed after Radioactive Iodine Therapy and Palliative Radiation Therapy in Metastatic Papillary Thyroid Cancer (갑상선 유두암환자에서 방사성 옥소 치료와 고식적 방사선 치료 후 발생한 급성 골수성 백혈병)

  • Ko, Tae-Young;Kwag, Jae-Sik;Oh, Kyung-Suk;Lee, Seung-Bai;Chung, Byung-Sun;Kim, Eun-Sil;Kim, Chong-Soon
    • The Korean Journal of Nuclear Medicine
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    • v.32 no.5
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    • pp.436-442
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    • 1998
  • Radioactive iodine treatment has been widely used for nearly 50 years in the treatment of thyroid cancer to ablate residual thyroid tissue after thyroidectomy and to treat metastatic disease. Leukemia is a rare complication associated with the radioactive iodine therapy. The occurrence of leukemia is known to be related to the cumulative dosage of I-131 more than 37 GBq (1 Ci) and also associated with the intervals of less than 12 months between the repeated doses. We report a case of a 52 year-old female patient with papillary cancer of thyroid who developed acute myelogenous leukemia after the total 20.4 GBq (550 mCi) of I-131 therapy over 3.2 years and palliative radiation therapy (3000 cGy) due to multiple bone metastasis of papillary cancer.

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Fracture Behavior Estimation for Circumferential Surface Cracked Pipes (I) - J-Integral Estimation Solution - (배관에 존재하는 원주방향 표면균열에 대한 파괴거동 해석 (I) -J-적분 예측식 -)

  • Kim, Jin-Su;Kim, Yun-Jae;Kim, Yeong-Jin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.1
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    • pp.131-138
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    • 2002
  • This paper provides the fully plastic J solutions for circumferential cracked pipes with inner, semi- elliptical surface cracks, subject to internal pressure and global bending. Solutions are given in the form of two different approaches, the GEF/EPRl approach and the reference stress approach. For the GE/EPRl approach, the plastic influence functions for fully plastic J are tabulated based on extensive 3-D FE calculations using the Ramberg-Osgood (R-O) materials, covering a wide range of pipe and crack geometries. The developed GEf/EPRl-type fully plastic J estimation equations are then re-formulated using the concept of the reference stress approach for wider applications. Based on the FE results, optimized reference load solutions for the definition of the reference stress are found for internal pressure and for global bending. Advantages of the reference stress based approach over the GE/EPRl-type approach are fully discussed. Validation of the proposed reference stress based J estimation equations will be given in Part II, based on 3-D elastic-plastic or elastic creep FE results using typical tensile properties of stainless steels and generalized creep- deformation behaviours.

Radioactive Waste Management Procedure of Thyroid Cancer Patients in Isolation room (치료병실에서 배출되는 방사성오염 폐기물의 처리 방안)

  • Jeong, Seok;Oh, Ki-Beak;Park, Hoon-Heui;Kim, Jae-Sam;Lee, Chang-Ho
    • The Korean Journal of Nuclear Medicine Technology
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    • v.12 no.1
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    • pp.119-122
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    • 2008
  • Radioiodine (I-131) Therapy has been known one of the methods treated with hyperthyroidism and thyroid tumor, using a separate ward. This technique has been already used for several decades, and its clinical efficacy proven. Today, Radioiodine takes a form of capsule through continuous development, so, 30 odd domestic hospitals run about 63 separate wards. And, its demands would increase continuously; because of tending upwards the patients had thyroid cancer. However, various kinds of wastes originate from a procedure of radioiodine therapy. Especially, when their radioactivity exceed permissible level (4 Bq/$cm^2$) set by Nuclear laws of the Republic of Korea, it regards as radioactive wastes, then, managed separately from origination to the last disposal.

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Sjögren Syndrome after Radioiodine Therapy in Thyroid Cancer Patients

  • Lee, Hee Jin;Kim, Jae-Jeong;Kim, Young-Gun;Ahn, Hyung-Joon;Choi, Jong-Hoon;Kwon, Jeong-Seung
    • Journal of Oral Medicine and Pain
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    • v.43 no.3
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    • pp.84-86
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    • 2018
  • Salivary and lacrimal gland dysfunction is relatively frequent after radioiodine therapy. In most cases this is a transient side effect, but in some patients it may persist for a long period or appear late. Radioiodine ($^{131}I$) therapy is often administered to patients following total thyroidectomy to treat well-differentiated follicular cell-derived thyroid cancer. In addition to the thyroid, $^{131}I$ accumulates in the salivary glands, giving rise to transient or permanent salivary gland damage. Salivary gland dysfunction following radioiodine therapy can be caused by radiation damage. But, it also may be associated with $Sj{\ddot{o}}gren$ syndrome (SS) developed after radioiodine therapy. It would be recommended that the evaluation for SS including anti-SSA/Ro and anti-SSB/La should be considered before and after radioiodine therapy.

Lung Metastasis of Thyroid Papillary Carcinoma which was Temporarily Treated for Milliary Tuberculosis (파종성 폐결핵으로 오인된 갑상선 유두상암종의 폐전이)

  • Na, Hong-Shik;Lee, Je-Hyuck;Paeng, Jae-Pil;Jung, Kwang-Yoon;Choi, Jong-Ouck
    • Korean Journal of Bronchoesophagology
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    • v.6 no.1
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    • pp.16-20
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    • 2000
  • The patient a 24-year-old male, was shown to have milliary shadows on chest radiographs from the age of 20. He was temporarily treated for pulmonary tuberculosis without success. He had left thyroid mass and lymph node metastases in neck CT scan which was taken after admission but fine needle aspiration result in scanty cellularity. He underwent total thyroidectomy with left modified radical neck dissection and right selective neck dissection under the impression of differentiated thyroid cancer with bilateral neck metastases. Then he underwent 131I ablation treatment and postoperative whole body 131I scintigraphy revealed diffuse intensive uptake in the bilateral lung fields, demonstrating that the pulmonary lesions were metastases of the thyroid cancer.

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Review of Radionuclide Treatment for Neuroendocrine Tumors (신경내분비종양의 방사성핵종 치료)

  • Jeong, Hwan-Jeong
    • Nuclear Medicine and Molecular Imaging
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    • v.40 no.2
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    • pp.90-95
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    • 2006
  • Neuroendocrine tumors (NETs) consist of a heterogeneous group of tumors that are able to uptake neuroamine and/or specific receptors, such as somatostatin receptors, which can play important roles of the localization and treatment of these tumors. When considering therapy with radionuclides, the best radioligand should be carefully investigated. $^{131}I$-MIBG and beta-particle emitter labeled somatostatin analogs are well established radionuclide therapy modalities for NETs. $^{111}In,\;^{90}Y\;and\;^{177}Lu$ radiolabeled somatostatin analogues have been used for treatment of NETs. Further, radionuclide therapy modalities, for example, radioimmunotherapy, radiolabeled peptides such as minigastrin are currently under development and in different phases of clinical investigation. for all radionuclides used for therapy, long-term and survival statistics are not yet available and only partial tumour responses have been obtained using $^{131}I$-MIBG and $^{111}In$-octreotide. Experimental results using $^{90}Y$-DOTA-lanreotide as well as $^{90}Y-DOTA-D-Phe1-Tyr^3-octreotide$ and/or $^{177}Lu-DOTA-Tyr^3-octreotate$ have indicated the possible clinical potential of radionuclides receptor-targeted radiotherapy it may be hoped that the efficacy of radionuclide therapy will be improved by co-administration of chemotherapeutic drugs whose antitumoral properties may be synergistic with that of irradiation.

NON DESTRUCTIVE APPLICATION OF RADIOACTIVE TRACER TECHNIQUE FOR CHARACTERIZATION OF INDUSTRIAL GRADE ANION EXCHANGE RESINS INDION GS-300 AND INDION-860

  • Singare, P.U.
    • Nuclear Engineering and Technology
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    • v.46 no.1
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    • pp.93-100
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    • 2014
  • The paper deals with the application of radio isotopic non-destructive technique in the characterization of two industrial grade anion exchange resins Indion GS-300 and Indion-860. For the characterization of the two resins, $^{131}I$ and $^{82}Br$ were used as tracer isotopes to trace the kinetics of iodide and bromide ion-isotopic exchange reactions. It was observed that the values of specific reaction rate ($min^{-1}$), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log $K_d$ were calculated as 0.328, 0.577, 0.189 and 19.7 respectively for Indion GS-300 resin, which was higher than the respective values of 0.180, 0.386, 0.070 and 17.0 calculated for Indion-860 resins when measured under identical experimental conditions. Also at a constant temperature of $40.0^{\circ}C$, as the concentration of labeled iodide ion solution increases 0.001 M to 0.004 M, the percentage of iodide ions exchanged increases from 75.16 % to 78.36 % for Indion GS-300 resins, which was higher than the increases from 49.65 % to 52.36 % compared to that obtained for Indion-860 resins. The overall results indicate that under identical experimental conditions, Indion GS-300 resins show superior performance over Indion-860 resins.