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Kyoung Ah Kim  (Kim KA) 7 Articles
NF-kappaB Pathway in Metabolic/endocrine Diseases.
Myung Shik Lee, Kyoung Ah Kim
J Korean Endocr Soc. 2006;21(5):352-363.   Published online October 1, 2006
DOI: https://doi.org/10.3803/jkes.2006.21.5.352
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  • 31 Download
  • 5 Crossref
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  • Antioxidant and anti-inflammatory effects and mechanism of Abeliophyllum distichum leaf extract in RAW264.7 macrophages
    Juhee Yoo, Kyung-Ah Kim
    Journal of Nutrition and Health.2023; 56(5): 455.     CrossRef
  • Anti-inflammatory effects of the ethanol fraction ofSpiraea prunifolia var. simpliciflorain RAW 264.7 cells
    Jinhyung Suhr, Hansol Lee, Suhwan Kim, Sung Jin Lee, Eun Young Bae, Sun Yung Ly
    Journal of Nutrition and Health.2022; 55(1): 59.     CrossRef
  • Effects of Antioxidant and Anti-inflammatory Activity of Allii Macrostemonis Bulbus Cheonghyeol Plus on the Inhibition of Atherosclerosis
    Incheol Chae, Juyeong Ryu, Horyong Yoo, Yoonsik Kim, Inchan Seol
    Journal of Physiology & Pathology in Korean Medicine.2020; 34(3): 126.     CrossRef
  • Chinese Olive (Canarium album L.) Fruit Extract Attenuates Metabolic Dysfunction in Diabetic Rats
    Yu-Te Yeh, An-Na Chiang, Shu-Chen Hsieh
    Nutrients.2017; 9(10): 1123.     CrossRef
  • Olive leaf extract suppresses messenger RNA expression of proinflammatory cytokines and enhances insulin receptor substrate 1 expression in the rats with streptozotocin and high-fat diet–induced diabetes
    Ya-Nan Liu, Ji-Hye Jung, Hyunjin Park, HyunSook Kim
    Nutrition Research.2014; 34(5): 450.     CrossRef
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The Inhibitory Effect of the Second Generation Sulfonylurea Drugs on Cytochrome P450-catalyzed Reaction by Human Liver Microsomes.
Jee Yee Choi, Su Young Kim, Kyoung Ah Kim, Ji Young Park
J Korean Endocr Soc. 2002;17(4):544-553.   Published online August 1, 2002
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  • 35 Download
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BACKGROUND
Sulfonylurea drugs have been used for many decades as one of the main families of drugs for the treatment of type 2 diabetes mellitus. Even though there are many opportunities to medicate sulfonylurea drugs concomitantly with many other drugs, and furthermore there have been several case reports on drug interactions with sulfonylurea drugs, there has been no clear demonstration revealing the mechanisms that cause these interactions. We therefore evaluated inhibitory potential of sulfonylurea drugs, including glibenclamide, glipizide and gliclazide, on the cytochrome P450 (CYP)-catalyzing enzymes using human liver microsomes. METHODS: The inhibitory effects of glibenclamide, glipizide and gliclazide, on the CYP-catalyzing reaction, were evaluated for CYP1A2, CYP2C9, CYP2C19, CYP2D6 and CYP3A4 using human liver microsomes, and probe drugs for each. RESULTS: Glibenclamide showed relative potent inhibitory effects on the CYP2C9- and CYP3A4-catallyzed reaction (IC50; 11.3 ( microM and 59.0 ( microM). The other CYP isoforms tested showed only weak inhibitory effects by due to glibenclamide (IC50 > 112 ( microM). Glipizide showed potent inhibitory effect on CYP3A4-catalyzed reaction only (IC50; 11.2 ( microM), and weak, or no, inhibitory effects on each on the other CYP isoforms tested (IC50 > 276 ( microM). CONCLUSION: The sulfonylurea drugs showed inhibitory potential on the CYP-catalyzing reaction in human liver microsomes. The results obtained in the present study provide insights into the potential of the drug interaction to ward drugs co-administered with sulfonylureas. It will be necessary to take into consideration the control of blood glucose, as well as therapeutic drug monitoring, to reduced toxicities when sulfonylurea drugs are co-administered with drugs of a narrow therapeutic range, or with severe dose-dependent toxicities.
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ret/PTC-1, -2, and -3 Incogene Rearrangements of Papillary Thyroid Carcinomas in Korea and Its Relevance to Clinical Aggressiveness.
Jong Ryeal Hanhm, Jae Hoon Chung, Byung Joon Kim, Kyoung Ah Kim, Sung Hoon Kim, Dong Jun Kim, Yong Ki Min, Myung Shik Lee, Moon Kyu Lee, Kwang Won Kim, Seok Jin Nam, Jung Hyun Yang, Howe Jung Ree
J Korean Endocr Soc. 1999;14(1):53-62.   Published online January 1, 2001
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BACKGROUND
The prevalence of ret/PTC rearrangement in papillary thyroid carcinomas has been found to have wide variance in different populations. Recent studies, however, have been reporting no significant geographical difference between Asian and Western countries. In addition, there are some arguments about the correlation of ret/PTC expression with clinical aggressiveness. We have performed this study in order to examine the prevalence of ret/PTC-1, -2 and -3 rearrangements in korean papillary throid carcinomas and to ascertain its clinical relevance. METHODS: Fourteen thyroid tumors histologically confirmed to be papillary carcinomas were included in this study. To find rearrangements, we adopted RT-PCR and automated direct sequencing. Initial and follow-up clinical data were obtained form the patients medical records. The plasmid containing ret/PTC-2, and 3 was kindly provided by Dr. Ahn (Ulsan University, Seoul Choonang Hospital). RESULTS: We identified one tumors containing ret/PTC-1(1/14, 7.1%), and two containing ret/PTC-2 (2/14, 14.2%), and could not find ret/PTC-3 rearrangement in other patients (0/11). There was no significant correlation of ret/PTC with clinical aggressiveness. CONCLUSION: We found that the prevalence of ret/PTC rearrangement (3/14, 21.4%) in papillary thyroid carcinomas from Korea was similar to those recently reported in other nations. ret/PTC rearrangement may not affect biological behaviors of papillary thyroid carcinomas.
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Heterogeneity of TSH Receptor Autoantibodies in Autoimmune Thyroid Disease.
Won Bae Kim, Bo Youn Cho, Kyoung Ah Kim, Jae Hoon Chung, Young Ki Min, Myung Shik Lee, Moon Kyu Lee, Kwang Won Kim
J Korean Endocr Soc. 1997;12(2):176-193.   Published online January 1, 2001
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  • 18 Download
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BACKGROUND
It has been known that most of thyroid stimulating antibodies (TSAbs) may interact with epitopes near N-terminal, and thyroid stimulation blocking antibodies (TSBAbs) near C-terminal on the extracellular domain of TSH receptor. However, many authors have reported different results about epitopes reacting with TSH receptor autoantibody (TRAb). TSBAbs inhibit thyroid stimulation of TSH and TSAbs at the receptor level. However, it has been reported that there are some TSBAbs which bind to the other sites, not TSH receptor, or block post-reeeptor process. These findings raise the possibility that TRAbs may be heterogeneous according to the mechanism of action. In order to investigate the heterogeneity of TRAb, we undertook immuno-precipitation using synthetic peptides of TSH receptor and measured TRAb activities by FRTL-5 cells and chimeric CHO cells. METHODS: We studied 102 patients with autoimmune thyroid disease (Graves disease 32, Hashimotos thyroiditis 29, atrophic thyroiditis 41) and 35 healthy persons. Three synthetic peptide fragments of TSH receptor were used to perform immunoprecipitation with serum or IgG of patients and healthy persons, TSAb and TSBAb activities were measured by FRTL-5 cells and CHO cells transfected with wild-type and 2 mutant TSH receptor cDNA (Mc2, Mc1+2). Mc2 and Mcl+2 were rnade to substitute amino acid residues of 90-165, 8-165 of the TSH receptor with corresponding residues of LH/CG receptor, respectively. RESULTS: Two out of 10 IgGs extracted from Graves disease and 2 out of 9 IgGs from atrophic thyroiditis had specific bidings over 0.84% in immunoprecipitation with peptide I (amino acid residue 35-50). Four out of 18 IgGs from Graves disease, 9 out of 41 IgGs from atrophic thyroiditis, and 6 out of 14 IgGs from Hashimotos thyroiditis had specific bidings over 0.84% in immunoprecipitation with peptide II (amino acid residue 317-332). Only 2 out of 10 IgGs from Graves disease had specific bidings over 0.84% in immunoprecipitation with peptide III (amino acid residue 341-358). When 10 IgGs extracted from Graves disease were reacted with wild-type, Mc2, and Mcl+2 CHO cells, 7 IgGs in wild-type and 4 IgGs in Mc2 had positive for TSAb activities. In 10 IgGs from atrophic thyroiditis, 5 in wild-type, 5 in Mc2, and 3 in Mcl+2 CHO cells had positive for TSBAb activities. In Hashimoto's thyroiditis, only 1 with hyperthyroidism had positive for TSAb activity in wild-type and 1 with hypothyroidism had positive for TSBAb activities in both of wild-type and Mc2 CHO cells. Therefore, patients with Graves disease were divided into at least 3 groups according to the TSAb activities measured by wild-type, Mc2, Mcl+ 2 CHO cells and TBII activities. And patients with atrophic thyroiditis were divided into at least 4 groups according to the TBII activities, TSBAb activities by wild-type, Mc2, Mcl+2 CHO cells and FRTL-5 cells. CONCLUSION: From these results, epitopes of TSH receptor reacting with TSAb or TSBAb in autoimmune thyroid disease may be scattered in the TSH receptor, although epitopes of TSAb tend to be near N-terminal and those of TSBAb near C-terminal. Graves disease or atrophic thyroiditis were divided into 3 or 4 groups according to the TBII and TRAb activities. Therefore, TRAb detected in autoimmune thyroid disease may be heterogenous.
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A Case of Down's Syndrome with Graves' Disease.
Kap Bum Huh, Kyoung Ah Kim, Jae Hoon Chung, Yeun Sun Kim, Kyu Jeung Ahn, Eun Mi Koh, Young Ki Min, Myung Shik Lee, Moon Kyu Lee, Kwang Won Kim, Hyun Kyun Ki
J Korean Endocr Soc. 1997;12(1):61-67.   Published online January 1, 2001
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Down's syndrome (trisomy 21) has been frequently associated with thyroid disease, mainly subclinical hypothyroidism (12.5-32.5%). The occurrence of Downs syndrome in conjunction with hyperthyroidism is rare (0.6-2.5%). The mechanism that Down's syndrome was frequently associated with autoimmune thyroid disease is not clear, but T cell maturation defects and overexpression of chromosome 21 products in Down's syndrome have been suggested. A 19-year-old female was transferred because of generalized weakness. She was born to a 42-year-old mother, She had been suffered from heat intolerance, weight loss, palpitation, dyspnea on exertion and neck swelling and had intermittently taken some medication since her age 9. She had mental retardation (IQ 41) and underdeveloprnent. Exophthalmos, upward-outward slant of palpabral fissures, epicanthal folds, lowset ears, and large, protruding, fissured tongue were identified. Short fifth middle phalanges, clinodactyly and small-sized interventricular septal defect were also detected. Thyroid gland was diffusely enlarged four times the normal size, firm in consistency and had a bruit. Serum T concentration was 7.8ug/dL, T2 306ng/dL, and TSH 0.01ulU/mL. She was positive for thyroid autoantibodies (antimicosomal antibody 1,867 IU/mL, antithyroglobulin antibody 106 IU/mL, and TBII 79.6%). Twenty-four hours radioactive iodine uptake was 64%. Chromosomal analysis with T cell culture stimulated by phytohemagglutinin revealed 47XX, 21 trisomy. Pituitary hormones except TSH were fully stimulated by combined pituitary stimulation. She was finally diagnosed as Down's syndrome with Graves' disease and controlled with use of methimazole.
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Serum Lipoprotein (a) and Lipid Concentrations in Patients with Subelinical Hypothyroidism.
Kyoung Ah Kim, Jae Hoon Chung, Yeun Sun Kim, Kyu Jeung Ahn, Eun Mi Koh, Young Ki Min, Myung Shik Lee, Moon Kyu Lee, Jong Hun Lee, Kwang Won Kim
J Korean Endocr Soc. 1997;12(1):11-17.   Published online January 1, 2001
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BACKGROUND
Overt hypothyroidism is well-known cause of secondary hyperlipidemia and atherosclerosis. However, there have been dissenting reports of abnormalities in serum lipid concentrations in patients with subclinical hypothyroidism (SH). Recently, it has been reported that serum Lp (a) concentration, an independent risk factor of atherosclerosis, was increased in patients with SH. Therefore, we analyzed serum Lp (a) and other lipid concentrations to investigate whether they are increased in patients with SH and the correlation between serum Lp (a) and TSH concentrations. METHODS: We undertook this study in 53 patients with SH (TSH > 6 uiU/ml) and 197 age-and sex-matched healthy control subjects, They had no abnormalities in liver function, BUN, creatinine, fasting blood glucose, urinalysis, and past medical histories. Serum T3, T4, and TSH concentrations were measured by RIA using commercial kits. Serum concentrations of Lp (a), total cholesterol, triglyceride (TG), and HDL cholesterol (HDL-C) were measured by rate nephelometry and enzyme assay, respectively. RESULTS: There were no significant differences of serum Lp (a), total cholesterol, LDL cholesterol, TG, and HDL-C concentrations in 53 patients with SH and 197 control subjects (25.6+-3.8mg/dL vs. 25.4+-1.5mg/dL ; 204.0+-4.2mg/dL vs. 204.0+-2.4mg/dL ; 127.0+-3.9mg/dL vs. 125.0+-2.3 mg/dL ; 133.0+-8.5mg/dL vs. 130.0+-6.0mg/dL ; 50.0+-1.5mg/dL vs. 53.0+-0.9mg/dL). There was no correlation between Lp (a) and TSH concentrations in SH (r=0.12, p>0.05). CONCLUSION: Serum Lp (a) concentration as well as total cholesterol, LDL cholesterol, and TG was not increased in patients with SH. There was no correlation between serum Lp (a) and TSH levels in subclinical hypothyroidism.
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Two cases of 111Indium Pentetreotide Scan for the Pre- and Post-Operative Evaluation of Localization and Metastasis in Medullary Thyroid Carcinoma.
Jae Hoon Chung, Kwang Won Kim, Kyu Jeung Ahn, Yong Ki Min, Myung Shik Lee, Moon Kyu Lee, Kyoung Ah Kim, Yeun Sun Kim, Eun Mi Koh
J Korean Endocr Soc. 1996;11(1):85-92.   Published online November 7, 2019
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AbstractAbstract PDF
Medullary carcinoma of the thyroid gland(MTC) constitutes approximatesly 3% to 10% of all malignant thyroid tumors. It appears in both familial and sporadic forms. Metastases are frequently present at diagnosis and are resistant to chemotherapy and radiotherapy. Surgical resection of the primary tumor and the metastases is the mainstay of treatment. Although MTC can be detected by elevated serum calcitonin, localization of residual or metastatic foci may be difficult. Many scintigraphic methods have been used for identification of the residual tumor or metastasis. However, most of them have either low sensitivity or low specificity. MTC frequently secretes somatostatin and may express somatostatin receptors. Recently, somatostatin-receptor imaging has been known to be useful for the detection of residual and recurrent medullary thyroid carcinoma. A 25 year-old woman who was dignosed as medullary carcinoma by biopsy of thyroid mass is presented. Thirteen years ago, she underwent left thyroidectomy due to thyroid cancer(MTC). Laboratory tests revealed an increase in the levels in serum CEA(CEA=557.6 ng/ml) and calcitonin(calcitonin= 720 pg/ml). The second patient, a 30 year-old female, complained of a palpable mass in the left anterior neck. Ten years ago, she underwent a right lobectomy of thyroid gland due to adenomatous goiter. Laboratory tests revealed an increase in the levels in serum CEA(CEA=617 ng/ml) and Calcitonin (Calcitonin=2,300 pg/ml). In both cases, pre- and postoperative In-111 pentetreotide scintigraphy were done and compared with "'I scintigraphy. In-111 pentetreotide scan may be useful for the localization of residual or metastatic medullary thyroid carcinoma. Further study is warranted to define the sensitivity and specificity of the technique.
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