• Title/Summary/Keyword: Thyroid stimulating hormone

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Functional study of endoplasmic reticulum chaperons ERp29 (소포체 분자샤페론 ERp29의 기능연구)

  • Park, Su-Jeong;Yu, Gwan-Hui;Gwon, O-Yu
    • Proceedings of the Korean Society of Life Science Conference
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    • 2002.12a
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    • pp.61-67
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    • 2002
  • ERp29는 ER chaperone의 한 종류이지만 아직까지 세포내에서 그 기능은 명확하지 않다. 배양 갑상선세포 (FRTL-5)에서 ERp29의 발현은 TSH (thyroid stimulating hormone) 의존적으로 조절되며, ERp29가 과발현된 세포에서는 ERp29-ER chaperone가 긴밀한 관계를 유지하여 분비단백질인 Thyroglobulin의 분비량이 약 30% 증가되었다.

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Effects of Sipyukmiyukieum on DNA Synthesis, cAMP Synthesis and MHC-class II Expression of FRTL-5 Thyroid Cells (십육미류기음(十六味流氣飮)이 FRTL-5 갑상선 세포의 DNA와 cAMP의 합성 및 MHC-class II의 발현에 미치는 영향)

  • Kim, Byoung-Woo;Yi, Jae-Eun
    • The Journal of Internal Korean Medicine
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    • v.26 no.2
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    • pp.398-408
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    • 2005
  • Objective: Graves' disease encompasses hyperthyroidism and diffused goiter associated with auto-antibodies to the thyroid stimulating hormone(TSH) receptors. In clinical environment, treatments of Graves' disease have many side effects such as recurrence and hypothyroidism. We've studied the effects of Sipyukmiyukieum on DNA synthesis, cAMP synthesis, and MHC-class II expression of FRTL-5 thyroid cells were studied. Methods: DNA synthesis was investigated by using BrdU staining and cAMP synthesis by ELISA kit, and expression of $interferon-{\gamma}$ activated MHC class II by Flow cytometer. Results: After introduction of Sipyukmiyukieum, significant inhibition of DNA synthesis. cAMP synthesis, and expression of $interferon-{\gamma}$ activated MHC class II of FRTL-5 thyroid cells was observed. Conclusions: Judging from these results, Sipyukmiyukieum has potential as a potent herbal treatment for inhibiting the enlargement of goiter, synthesis of abnormal thyroidal hormones, and autoimmuine responses of Graves' disease.

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Thyroid Hormones, Cognitive Impairment, Depression and Subjective Memory Complaint in Community-Dwelling Elders with Questionable Dementia in Korea (일 지역 치매의심 노인군에서 갑상선관련 호르몬, 인지기능, 우울증, 주관적 기억저하의 연관성)

  • Lee, Sung Nam;Jin, Ha Young;Moon, Seok Woo
    • Korean Journal of Biological Psychiatry
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    • v.21 no.4
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    • pp.175-181
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    • 2014
  • Objectives It was the aim to examine the association of the thyroid-related hormones with cognitive function, depression, and subjective memory impairment in community-dwelling elders with questionable dementia. Methods The sample consisted of 399 community residents with 'questionable dementia' aged 60 or over in whom serum thyroid-related hormones [thyroid stimulating hormone (TSH) and thyroxine] had been assayed. Cognitive impairment was defined using the Korean version of the Consortium Establish a Registry for Alzheimer's Disease. Depression was diagnosed using the Korean version of Geriatric Depression Scale and subjective memory complaint (SMC) was checked using the subjective memory complaints questionnaire (SMCQ). Age, gender, education, and the presence of apolipoprotein E {\varepsilon}4 were included as covariates. Results There was a significant positive association between verbal fluency test (VFT) score and serum TSH levels (p = 0.01). There was a significant negative association between SMCQ total score and word list memory test (WLMT)(p = 0.002) or word list recall test (WLRT) score (p = 0.013). Conclusions Lower serum TSH levels were associated with semantic memory (VFT), and we found that SMC was associated with episodic memory (WLMT and WLRT) in this sample.

Alterations in Thyroid Hormone Levels After Open Heart Surgery (개심술 후 갑상선 호르몬치 변화에 대한 연구)

  • 김광휴;조삼현
    • Journal of Chest Surgery
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    • v.30 no.2
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    • pp.131-136
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    • 1997
  • The hemodynamic effects of thyroid hormones which is well established, affect myocardial contractility, heart rate, and myocardial oxygen consumption. The alterations in thyroid function test are frequently seen in patients with nonthyroidal illness and often correlate with the severity of the illness and the prosnosis. In this study, thyroid hormone changes were investigated in 20 patients who received cardiopulmonary bypass(CPB). All patients showed a state of biochemical euthyroidism preoperatively: The results were as follows : 1. Serum triiodothyronine(73) reached to its nadir(30.05 $\pm$ 17.5ng/dl, p(0.001) at 10 minutes after the start of CPB and remained low(p(0.05) throughout the study period. 2. Serum thyroxine(74) concentr tion slightly decreased after CPB, but maintained within normal range. 3. Serum free thyroxine(W4) concentration slightly increased after CPB, but maintained within normal range. 4. Serum thyroid stimulating hormone(TSH) concentration increased 10 minute after CPB, reached to its nadir(3.37 $\pm$ 0.81u1U/m1, p(0.001) at 2 hours after CPB. After then, serum TSH concentration decreased and reached its normal levels at 24 hours after CPB. 5. The patients whose postoperative recovery was uneventful(Group 1) had higher serum 73 levels than those who had postoperative complications(Group 2)(p<0.05). Group 1 showed elevating patterns of serum 73 in the fourth day after operation, whereas group 2 did not show such an elevating pattern. These findings are similar to the euthyroid sick syndrome seen in severely ill patients and indicate that patients undergoing open heart surgery have suppression of the pituitary-thyroid axis.

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Effects of Mume Fructus on the Rat Hypothyroidism Induced by PTU(6-n-propyl-2-thiouracil) (PTU(6-n-propyl-2-thiouracil)로 유발된 Rat 갑상선 기능저하증에 미치는 烏梅의 효과)

  • Choi, Jae Young;Roh, Seong Soo;Park, Ji Ha;Koo, Jin Suk;Seo, Bu Il
    • The Korea Journal of Herbology
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    • v.30 no.4
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    • pp.109-119
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    • 2015
  • Objectives : The aim of this study was to evaluate the effect of aqueous extracts of Mume Fructus(MF) on the 6-n-propyl-2-thiouracil(PTU)-induced rat hypothyroidism.Methods : Aqueous extracts of MF(yield = 19.38%) were administered, once per day for 42 days from 2 weeks before starting of PTU treatment as an oral dose of 300 and 150 ㎎/㎏(body weight), and hypothyroidism was induced by daily subcutaneous treatment of PTU 10 ㎎/㎏ for 28 days. The changes in the body weight, thyroid gland weights, liver weight, serum levels of thyroid hormone-thyroid stimulating hormone(TSH), tri-iodothyronine(T3) and thyroxine(T4), total cholesterol, low density lipoprotein(LDL), high density lipoprotein(HDL) and triglyceride (TG), aspartate aminotransferase(AST), alanine aminotransferase(ALT), liver antioxidant defense system-lipid peroxidation, H2O2, superoxide dismutase(SOD) and catalase(CAT) were examined with histopathology of thyroid glands and liver.Results : Results were compared with LevoT40.5 ㎎/㎏ treated rats. MF extracts recovered from the decreases in the body weight, liver weight, T3and T4, TG, liver CAT activities as results of PTU treatment. And MF extracts recovered from the increases of thyroid gland weights, TSH, HDL contents, liver H2O2, AST as results of PTU treatment. In addition, these PTU-induced histopathological changes in thyroid glands and liver related to hypothyroidism were dramatically decreased by treatment of both different dosages of MF extract, respectively.Conclusions : According to the above results, it is suggested that MF extracts have advantageous effects on the thyroid hormone productions with beneficial effects on the hypothyroidism related liver injuries mediated by the modulation on the antioxidant system.

Thyroid Function after Postoperative Radiation Therapy in Patients with Breast Cancer

  • Wolny-Rokicka, Edyta;Tukiendorf, Andrzej;Wydmanski, Jerzy;Roszkowska, Danuta;Staniul, Boguslaw;Zembron-Lacny, Agnieszka
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.10
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    • pp.4577-4581
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    • 2016
  • Objective: The aim of this study was to assess thyroid function in breast cancer patients exposed to therapeutic external beam radiation. The focus was on possible progressive changes and any relationships between the incidence of primary hypothyroidism, the time required to become hypothyroid, and factors such as chemotherapy, hormonotherapy and immunotherapy. Materials and Methods: Seventy females undergoing 3D conformal and IMRT radiation therapy for breast cancers were enrolled in a non-randomized prospective study. The patients was divided into two groups: those after mastectomy or breast conserving surgery (BCS) were irradiated to a scar of the chest wall/breast and the ipsilateral supraclavicular and the axillary areas (supraclavicular radiotherapy group - SC-RT group - 32 patients) and the control group receiving adjuvant chest wall/breast RT only (BCT group - 38 patients).The total doses were 50.0 to 70 Gy in 5 to 7 weeks. The median follow-up term was 24 months (range, 1-40 months). Thyroid function was evaluated by measuring thyroid stimulating hormone (TSH), free thyroxine (fT4), and free triiodothyronine (fT3) levels. The minimum, maximum and mean thyroid gland doses for 20 Gy (V20) were calculated for all patients. Results: Statistically significant results were obtained for the SC-RT group. Two yearsa fter the end of RT the chance of an event was increased in 6% of the population (p=0.009) in the SC-RT group. In the BCT group no significance was noted. No statistically significant differences were found for V20, chemio-, immunotherapy and hormonotherapy or Ki67 values (p=0.12). No significant results were obtained for development of hypothyroidism and clinical factors (age, thyroid volume, treatment modalities). Conclusion: Radiotherapy is associated with a higher incidence of thyroid toxicity in breast cancer patients. Routine thyroid function monitoring should be recommended in such cases.

The Effect of Sleep Loss on Energy and Metabolism (호르몬수면상실이 에너지와 대사에 미치는 영향)

  • Kang, Seung-Gul
    • Sleep Medicine and Psychophysiology
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    • v.19 no.1
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    • pp.5-10
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    • 2012
  • The release of hormones and the metabolism of human body are controlled by the circadian rhythm related to sleep-wake cycle. Growth hormone, prolactin, thyroid stimulating hormone, cortisol, glucose, and insulin-secretion rates fluctuate according to the sleep-wake cycle. In addition, sleep is related to the appetite regulation and carbohydrate and other energy metabolism. Hypocretin (orexin), an excitatory neuropeptide, regulates waking and diet intake, and the poor sleep increases diet intake. The short sleep duration increases one's body mass index and impairs the function of the endocrine and metabolism, causing increases in the risk of glucose intolerance and diabetes. The poor sleep quality and sleep disorders have similar impact on the metabolic function. In short, the sleep loss and the poor quality of sleep have a detrimental effect on the endocrine and energy metabolism. The improvement of sleep quality by the future research and appropriate clinical treatment would contribute to the decrease of the metabolic diseases such as diabetes.

Effect of Acid Hydrolyzates of Ginseng Saponins on Lipid Metabolism in Rat Epi didymal Adipose Tissue (인삼Saponin의 산가수분해물이 Epididymal Adipose Tissue의 지방대식에 미치는 영향)

  • Do, Jae-Ho;Kim, Sang-Dal
    • Journal of Ginseng Research
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    • v.6 no.2
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    • pp.123-130
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    • 1982
  • Studies were carried out to clarify the effect of ginsenoside-Rbl -Rbr and acid hydrolyzatps of ginsenoside-Rbl, -Rb2 (HRbl, HRbf) on lipolysis and lipogenesis induced by epinephrine, glucagon, ACTH (adrenocorticotrophic hormone), TSH (thyroid-stimulating hormone) and insulin in rat adipose tissilr. HRbl , HRb2 slightly inhibited lipolysis induced by epinephine. glucagon and TSH. ACTH-induced lipolysis in fat tissue slices was significantly inhibited by ginsenoside -Rbl, -Rb2, HRbl and HRb2, particulary HRb2. None of ginsenoside-Rbl, -Rb2, HRbl and HRb2 accelerated insulin-stimulated lipogenesis in fat calls. Among ginseng products, extract powder (freeze dried), extract powder (spray dried), red ginseng powder inhibited ACTH-induced lipolysis in adipose tissue slices, but red ginseng extract not affect them.

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Convergence Risk Factors for Thyroid Nodules Diagnosed Ultrasound (초음파검사로 진단된 갑상선결절의 융복합 위험요인)

  • Lee, Hye-Nam;Park, Yeon-Hwa
    • Journal of Digital Convergence
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    • v.14 no.1
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    • pp.305-310
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    • 2016
  • Recently as the ultrasonography became generalized, the annual change rate of the incidence of thyroid cancer extraordinarily grew to 24.5% in Korea. Therefore, the aim of this study was performed to identify the risk factors of thyroid cancer apart from conventional risk factors of dietary iodine and ionizing radiation. In this retrospective study, 411 patients underwent fine-needle aspiration biopsy were examined from January 2011 to March 2013. The subjects are divided into two groups which are 260 patients with benign nodule and 151 patients with malignancy nodule. We compared age, hematologic values, body mass index, waist circumference, menopausal status, breast nodules status, uterine myoma status, fatty liver status of targeted group of patients. According to the result, in thyroid cancer group with obesity, the number of case of breast nodules and myoma was higher, and their thyroid stimulating hormone values was higher than the benign nodule group. In order to establish factors influencing thyroid and thyroid cancer, there is a definite need for continuous study.