• 대한핵의학회지
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• 제28권3호
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• pp.343-349
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• 1994

연구배경 : 자가면역성 갑상선염에서는 갑상선기능 상태가 일정하지가 않고 저하상태, 정상 또는 항진상태로 나타나기도 하며 또한 경과에 따라서 달라지기도 하는데, 갑상선기능검사소견에 있어서나 자가항체의 발현에 있어서도 다양한 소견을 나타내고 있다 이에 저자들은 자가면역상태의 발현 상태와 갑상선 기능상태의 상관성을 규명하고자 본 연구를 시도하였다. 방법 : 자가면역성 갑상선염 161예를 대상으로 치료제를 투여하기 전에 핵의학적 갑상선기능 검사 및 자가면역항체를 검사하여 상호의 결과를 대조비교 분석하였다. 결과 : 161예는 모두 여자였으며 평균 연령은 33세였고, 20대와 30대에 많았으며, 연령이 최소 10세에서 최고 73세까지였다. 방사성옥소 갑상선섭취율은 6시간치가 평균 $30.90{\pm}21.80(mean{\pm}SD)%$, 24시간치가 $37.97{\pm}23.25%$ 였으며, 혈청 T3치는 $1.41{\pm}0.48ng/m1$, T4는 $7.26{\pm}3.23ug/d1$, TSH치는 $17.99{\pm}30.72uIU/m1$, FT4치는 $1.11{\pm}0.66ng/dl$이었다. 항thyroglobulin항체는 $24.43{\pm}31.91U/m1$이었고, 항microsome항체는 평균 $55.32{\pm}41.97U/ml$이었다. 방사성옥소 갑상선섭취율은 혈청 갑상선호르몬치와는 유의한 음의 상관관계를 나타내었고, 혈청 TSH치와는 유의한 양의 상관성을 보였다. 혈청 갑상선호르몬치와 TSH치와는 유의한 음의 상관성이 저명하였다. 방사성옥소 갑상선섭취율과 혈청 free T4는 각각 연령에 역비례하여 감소하는 경향이 있었다. 항micro-some항체는 혈청 TSH와 양의 상관성이 있었다(p<0.001). 임상적소견에서 갑상선기능항진증이 3예(1.9%), 갑상선기능저하증이 24예 (14.9%)였으며, 갑상선기능이 정상으로 유지된 예가 134예(83.2%)였다. 갑상선기능에 이상이 있는 예에서는 자가항체가 상승된 예는 더 많았다. 결론 :자가면역성 갑상선염의 초진시에 갑상선기능항진 1.9%, 갑상선기능저하 14.9%였으며, 83.2%에서는 임상적으로 정상 갑상선기능의 소견을 나타내었다. 전체적으로 보아서 방사성옥소 갑상선섭취율은 약간 증가하였고, 혈청 갑상선호르몬은 정상 범위에 있는 경향이 있었고, 혈청 TSH치는 증가하는 경향이 있었다. 혈청 thyroglobulin치, 항thyroglobulin항체, 및 항microsome항체의 출현 빈도는 기능장애가 있는 예에서 많았고, 항microsome항체는 혈청 TSH치와 다소의 상관성이 있었다.

• Nuclear Medicine and Molecular Imaging
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• 제43권4호
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• pp.294-300
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• 2009

목적: 이 연구에서는 고용량 방사성요오드 치료 시행 전, 각각 rhTSH 전처치를 시행한 환자군(rHTSH군)과 갑상선 호르몬 투여 중단 시행한 환자군(THW군)에서 방사성요오드 투여 후 단기 혈청 갑상선글로불린(Tg) 상승 정도가 성공적인 잔여갑상선 제거(RRA)를 예측할 수 있는지, 그리고 두 군 사이에서 동등한 잔여갑상선 제거 효과를 보이는지 알아보았다. 대상 및 방법: 분화성갑상선암으로 수술후 방사성요오드 치료를 받은 환자들 중, rhTSH군은 2003년 1월에서 2006년 12월까지 39명, THW군은 2005년 1월에서 2005년 6월까지 46명을 대상으로 후향적으로 평가하였다. 이들은 방사성요오드 투여하는 날, 방사성요오드 투여 후 9일째 되는 날 및 6개월에서 12개월 사이에 시행한 추적 검사에서 갑상선기능검사를 시행하였다. 결과: 85명 중 64명에서 성공적 인 RRA를 보였다. rhTSH 군에서는 27명, THW 군에서는 37명에서 RRA 성공을 보였고 이 두 군의 결과는 유의한 차이를 보이지 않았다(p=0.347). rhTSH군 및 THW군에서 TgD9/TgD0은 RRA 성 공군에서 실패군보다 유의하게 높은 값을 보였다(p=0.03, p=0.04) TgD0와 TgD9/TgD0의 절단값을 결합하였을 경우, TgD0가 5.28 이하이면서 TgD9/TgD0이 4.37초과인 경우 96.7%(29/30)의 RRA 성공률을 보였고, rhTSH군과 THW군에서도 각각 92.9%(13/14)와 100%(16/16)의 높은 HRA 성공률을 나타냈다. 로지스틱 회귀분석에서는 오직 TgD0만 성공적인 RRA와 유의한 연관성을 보였다(p=0.001). 결론: THW군뿐 아니라 rhTSH군에서도 RRA를 위한 고용량 방사성요오드 치료 도중의 혈청 갑상선글로불린의 변화 양상으로 향후 성공적인 RRA를 예측할 수 있다.

• 대한한의학회지
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• 제29권3호
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• pp.38-49
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• 2008

Objectives: Though overt thyroid dysfunction is well recognized to affect serum lipid profiles and obesity, there are conflicting reports on the effect of subclinical hypothyroidism on serum lipid profiles and obesity. In most reports, the definition of the upper normal limit of serum thyroid stimulation hormone (TSH) of 4.0${\sim}$5.0mU/L has been used to diagnose. However, recent studies have suggested a much lower TSH cut off with an upper limit of 2.5mU/L, because >95% of rigorously screened normal euthyroid volunteers had serum TSH values between 0.4 and 2.5mU/L. Therefore we defined subclinical hypothyroidism as a TSH level greater than 2.5mU/L. We sought to evaluate the correlations of subclinical hypothyroidism with obesity index and serum lipid profiles Methods: TSH levels were measured in 6190 men and 4223 women that participated in health examination and free T4, lipid profiles (total-cholesterol, triglyceride, LDL-C), and obesity index (body mass index, body fat, waist circumference, C-reactive protein) were also measured. Results: There were significant differences of triglyceride between subclinical hypothyroidism men and normal control subjects. In women, there were also significant differences of triglyceride and LDL-C between subclinical hypothyroidism and normal control subjects. Subclinical hypothyroidism women showed significant correlations of TSH with total cholesterol, LDL-C, triglyceride, and C-reactive protein. Subclinical hypothyroidism men and women with a TSH level 2.5${\sim}$4.0mU/L had significant differences of triglyceride and body fat. In men, there were significant differences of waist circumference andC-reactive protein. In women, there were significant differences of LDL-C. Conclusions: We have demonstrated correlations of subclinical hypothyroidism with serum lipid profiles and obesity index. These findings suggested that subclinical hypothyroidism people had an increased risk of dyslipidemia and obesity. Subclinical hypothyroidism people with a TSH level 2.5${\sim}$4.0mU/L may be also considered suspect since it may signal a case of evolving thyroid underactivity eligible to be prevented.

• 대한핵의학회지
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• 제20권2호
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• pp.85-100
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• 1986

To evaluate the clinical and pathogenetic roles of TSH receptor antibodies in autoimmune thyroid diseases, TBII were measured by TSH-radioreceptor assay methods in 352 patients with Graves' disease, 108 patients with other thyroid diseases and 69 normal persons. The normal range of TBII activity was less than 15%. The frequencies of detectable TBII in 169 patients with untreated Graves' disease, 31 patients with hyperthyroidism under treatment and 70 patients with euthyrodism under treatment were 92.4%, 87.1% and 54.3% respectively. However 12 (21.8%) out of 55 patients who have been in remission more than one year after discontinuation of antithyroid drugs treatment had detectable TBII activities in their sera. In 196 patients with untreated Graves' disease, the frequency of TBII increased by increasing size of goiter and the frequency of proptosis was significantly high in patients whose TBII activities were more than 60%. TBII activities were roughly correlated with total $T_3,\;T_4$ and free $T_4$ index but low $\gamma^2$ value(less than 0.1). In 67 patients with Graves' disease who were positive TBII before antithyroid drugs treatment, TBII activities began to decrease from the third months and it was converted to negative in 35.8% of patients at 12 months after treatment. There were no significant differences of the declining and disappearing rates of TBII activities between high dose and conventional dose groups. TBII activities were significantly increased initially (2-4 months) and then began to decrease from 5-9 months after $^{131}I$ treatment. There were two groups, one whose TBII activities decreased gradually and the other did not change untill 12 months after subtotal thyroidectomy. Although preoperative clinical and laboratory findings of both groups were not different, TBII activities of non-decreasing group were significantly higher than those of decreasing group$(74.6{\pm}18.6%\;vs\;39.2{\pm}15.2%;\;P<0.01)$. Thirty three(55.9%) out of 59 patients with Graves' disease relapsed within 1 year after discontinuation of antithyroid drugs. The positive rate of TBII at the end of antithyroid drug treatment in relapse group(n=33) was significantly higher than those in remission group (n=26) (63.6% vs 23.1%; P < 0.05). The mean value of TBII activities at the end of antithyroid drug treatment in relapse group was significantly elevated $(29.7{\pm}21.4%\;vs\;14.7{\pm}11.1%,\;P<0.05)$. Positive predictive value of TBII for relapse was 77.8%, which was not different from those of TRH nonresponsiveness(78.6%). The frequencies of detectable TBII in 68 patients with Hashimoto's thyroiditis, 10 patients with painless thyroiditis and 5 patients subacute thyroiditis were 14.7%, 20% and 0%, respectively. However in 25 patients with primary nongoitrous myxedema, 11 patients(44%) showed TBII activities in their sera. 9 out of 11 patients who had TBII activities in their sera showed high TBII activities(more than 70% binding inhibition) and their IgG concentrations showing 50% binding inhibition of $^{125}I-bTSH$ to the TSH receptor were ranges of 0.1-2.6 mg/dl. One patient who had high titer of TBII in her serum delivered a hypothyroid baby due to transplacental transfer of maternal TBII. These findings suggested that 1) TSH receptor antibodies are closely related to a pathogenetic factor of Graves' hyperthyroidism and of some patients with primary non-goitrous myxedema, 2) measurement of TSH receptor antibodies is helpful in evaluating the clinical outcome of patients with Graves' disease during antithyroid drug treatment and in predicting the neonatal transient hypothyroidism of baby delivered from primary myxedema patients. 3) there are 2 or more different types of TSH receptor antibodies in autoimmune thyroid diseases including one which stimulates thyroid by binding to the TSH receptor and another which blocks adenylate cyclase stimulation by TSH.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1975년도 제14차 학술대회
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• pp.78.1-78.1
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• 1975

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1973년도 제12차 학술대회
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• pp.52.3-52.3
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• 1973

• 대한음성언어의학회:학술대회논문집
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• 대한음성언어학회 2017년도 제46차 춘계학술대회
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• pp.95-95
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• 2017

• 대한핵의학회지
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• 제15권1호
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• pp.1-11
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• 1981

To evaluate the diagnostic accuracy of the measurement of free thyroxine (FT4) by radioimmunoassay, we measured free $T_4\;and\;T_4,\;T_3,\;T_3RU$, TSH and TBG serum levels by radioimmunoassay in 18 healthy persons and 52 patients with various thyroid diseases and 11 normal pregnant women. The results are as follows. 1. In 19 cases of overt hyperthyroidism, $T_3,\;free\;T_4$ and FTI, $T_4/TBG$ ratio reflect hyperfunction in all cases. $T_4$ is increased in 94% (18/19) and TBG and TSH are decreased in 79% (15/19). 2. In 8 patients with overt hypothyroidism, TSH is increased in all cases and free $T_4$ and FTI is decreased in all cases. $T_4$ is decreased in 87.5% (7/8), $T_3$ is decreased in 75% (6/8) and $T_4/TBG$ ratio is decreased in 62.5% (5/8). 3. In 5 patients who are clinically in euthyroid state after treatment of hyperthyroidism, $T_4,\;free\;T_4$, FTI and TSH are in the normal range in all cases and $T_3$ is normal in 60% (3/5) and slightly increased in 40% (2/5). 4. In 10 patients who showed clinically borderline hypothyroidism after treatment of hyperthyroidism, TSH is increased in all cases and free $T_4$ and FTI are decreased in all cases, but $T_4\;and\;T_3,\;T_4/TBG$ ratio are in the normal limit in all cases. So after treatment of hyperthyroidism, TSH, free $T_4$ or FTI are recommended as optimal thyroid function test. 5. In normal pregnancy, free $T_4$, FTI and $T_4/TBG$ ratio reflect normal function, but the other parameters revealed unreliable due to the influence of increased TBG. Also TBG and TSH level in pregnancy is increased significantly compared with normal healthy control group. 6. The coefficients of correlation between free $T_4$ and FTI were 0.862 (p<0.001) and 0.685 (p<0.001) between free $T_4\;and\;T_4/TBG$ ratio. In most patients, diagnostic value of free $T_4$ was comparable and even superior to FTI, so free $T_4$ measurement can be used routinely with thyrotropin assay in the diagnosis of hypothyrodism or with $T_3$ for the diagnosis of hyperthyroidism.

• Clinical and Experimental Pediatrics
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• 제63권3호
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• pp.110-114
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• 2020

Background: Subclinical hypothyroidism (SH) is a common condition in obese children. However, its effect on glucose and lipid metabolism in obese children remains controversial. Purpose: The present study aimed to investigate the association between SH and metabolic parameters. Methods: A total of 215 obese children and adolescents aged 6-18 years were included in this retrospective cross-sectional study. The patients' anthropometric measurements such as thyrotropin (TSH), free thyroxine (fT4), fasting plasma glucose, and insulin levels, as well as homeostasis model assessment for insulin resistance (HOMA-IR) index, and lipid profiles were evaluated. The patients were allocated to the SH group (fT4 normal, TSH 5-10 mIU/L) (n=77) or the control group (fT4 normal, TSH<5 mIU/L) (n=138). The glucose and lipid metabolisms of the 2 groups were compared. Results: SH was identified in 77 of 215 patients (36%). Mean body mass index was similar in both groups. The mean serum insulin, HOMA-IR, and triglyceride (TG) levels were higher and the mean high-density lipoprotein cholesterol level was lower in the SH group than in the control group (P=0.007, P=0.004, P=0.01, and P=0.02, respectively). A positive correlation was observed between TSH level and insulin level, HOMA-IR, and TG level. Conclusion: SH was identified in some of the obese children and adolescents. A clear association was observed between SH, insulin resistance, and dyslipidemia in obese children.

• 대한핵의학회지
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• 제8권1_2호
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• pp.49-55
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• 1974

The authors studied on the 5 cases of solitary thyroid nodule by T3 suppression test and TSH stimulation test. Radioiodine uptake and thyroid scan were observed after administration of dssicated thyroid and TSH. 3 of 5 cases were teated by $^{131}I$ and 2 by long-term adiministration of dessicated thyroid. Following were the results: 1. Nodular tissue was not affected by the administration of dessicated thyroid or TSH. 2. Extranodular tissue responded as normal thyroid tissue on the administration of dessicated thyroid or TSH. 3. There were many gradations from euthyroid to hyperthroid in clinical state. 4. Treatments were succesful in all cases except one case who was treated by long-term administration of dessicated thyroid.