Endocrinology and Metabolism

Yun Kyung Kim (Kim YK)

5 Articles

Two Cases of Primary Hyperparathyroidism Associated with Colon Cancer.: Sang Hoon Chun, Yun Kyung Kim, Jae Seung Yun, Eun Hee Jang, Shin Ae Park, Jae Hyung Cho, Seung Hyun Ko, Yu Bai Ahn, Young Jin Suh, Jun Gi Kim; J Korean Endocr Soc. 2008;23(3):204-209. Published online June 1, 2008; DOI: https://doi.org/10.3803/jkes.2008.23.3.204

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Abstract PDF: Hypercalcemia is often observed in cancer patients secondary to parathyroid hormone (PTH) related peptide production. However, primary hyperparathyroidism and colon cancer rarely present simultaneously. Calcium is believed to have a chemopreventive effect against colorectal cancer because it reduces crypt cell hyperproliferation in both humans and in animals. There is evidence to suggest that the incidence of colorectal cancer in humans is reduced by high calcium intake. In patients with primary hyperparathyroidism, increased PTH activates 1,25(OH)2D and enhances calcium absorption in the gut. Consequently, the calcium level in the lumen is decreased, leading to an elevated risk of colorectal cancer. We report two patients with colon cancer and hypercalcemia secondary to primary hyperparathyroidism, along with a brief review of the literature.

The Endocrinological Characteristics of Rathke's Cleft Cyst: Pathologically Confirmed in Seven Cases.: Su Kyong Yu, Yun Kyung Kim, Hye Jin Kim, Dae Jung Kim, Yoon Sok Chung, Kwan Woo Lee, Se Hyuk Kim, Kyung Gi Cho; J Korean Endocr Soc. 2007;22(1):74-79. Published online February 1, 2007; DOI: https://doi.org/10.3803/jkes.2007.22.1.74

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Abstract PDF

Rathke's cleft cyst is a cystic sellar or suprasellar lesion thought to originate from the remnants of Rathke's pouch. It is characteristically lined by a single layer of ciliated cuboidal or columnar epithelium. Although small asymptomatic Rathke's cleft cysts have been reported at autopsy in 2~26% of normal pituitary glands, symptomatic cysts are rare. For patients with symptomatic Rathke's cleft cysts presentation with headache, pituitary dysfunction, and visual loss caused by compression of the optic chiasm in the event of suprasellar extension, is common. We report the endocrine characteristics of seven cases of patients with symptomatic Rathke's cleft cyst diagnosed with pathologic confirmation.

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Risk factor for pituitary dysfunction in children and adolescents with Rathke's cleft cysts
Han Hyuk Lim, Sei Won Yang
Korean Journal of Pediatrics.2010; 53(7): 759. CrossRef

A Case of Familial Multiple Endocrine Neoplasia Type 1 with MEN1 Gene Mutation.: Young Eun Jo, Yong Jun Choi, Yun Kyung Kim, Sang Mi Ahn, Sun Hye Jung, Hae Jin Kim, Dae Jung Kim, Kwan Woo Lee, Ji Hee Hong, Seon Yong Jeong, Hyon J Kim, Yoon Sok Chung; J Korean Endocr Soc. 2007;22(1):68-73. Published online February 1, 2007; DOI: https://doi.org/10.3803/jkes.2007.22.1.68

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Abstract PDF

Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterized by the combined occurrence of parathyroid, pancreatic islet and pituitary gland tumors. It is caused by mutation of the MEN1, a tumor suppressor gene, with more than 400 different MEN1 mutations having been described. Herein is reported the case of a 26-year-old woman who had complained of personality and behavior changes, coupled with repetitive loss of consciousness. Her random plasma glucose and insulin were 68 mg/dL and 67.3 microIU/mL, respectively. Two pancreatic masses were noted on abdominal computed tomography, with hypercalcemia noted from a routine chemistry test. Her diagnosis was that of MEN1; therefore, her first-degree relatives were also screened. DNA analysis was also performed, from which a MEN1 gene mutation (738del4 -> new nomenclature: 628del4) was detected. Knowledge of the MEN1 mutation status could provide early recognition of a tumor.

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Genetic and Epigenetic Analysis in Korean Patients with Multiple Endocrine Neoplasia Type 1
Yoon Jung Chung, Sena Hwang, Jong Ju Jeong, Sun Yong Song, Se Hoon Kim, Yumie Rhee
Endocrinology and Metabolism.2014; 29(3): 270. CrossRef
Somatic Mutational Analysis of MEN1 and Phenotypic Correlation in Sporadic Parathyroid Tumors
Young Su Chae, Hee Jin Kim, Sun Wook Kim, Myung-Chul Chang
Journal of the Korean Surgical Society.2009; 76(1): 15. CrossRef

Relationship between Diabetic Peripheral Vascular Disease and Ankle-Brachial Index.: Bo Ram Koh, Yun Kyung Kim, Sang Mi Ahn, Kyoung Eun Song, Sun Hye Jung, Hae Jin Kim, Dae Jung Kim, Yoon Sok Chung, Kwan Woo Lee; J Korean Endocr Soc. 2006;21(5):382-388. Published online October 1, 2006; DOI: https://doi.org/10.3803/jkes.2006.21.5.382

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BACKGROUND
Peripheral vascular disease (PVD) is a primary risk factor of foot amputation. In patients with diabetes mellitus (DM), the frequency of PVD is twice that of the general population. The ankle-brachial index (ABI) is a valuable diagnostic test for PVD. In this study, we investigated the relationship between the ABI and PVD, as well as the cutoff value of ABI in the diagnosis of PVD, and analyzed whether the ABI can be used as a predictor for amputation. METHODS: Fifty-two type 2 DM patients (31 males, 21 females) underwent peripheral angiography. PVD was defined as the complete obstruction of arteries and/or significant luminal narrowing, with collateral vessels formation, using peripheral angiography. The ABI was calculated by measurement of the segmental pressure using the Doppler method. RESULTS: Significant differences were observed between PVD and non-PVD patients in terms of age, systolic pressure and total cholesterol (each P < 0.05). The ABI was significantly lower in legs with PVD (P < 0.01) and an ABI less than 0.90 was adequate for diagnosing PVD. The risk of amputation was significantly increased in relation to the ABI level, and the risk of amputation was 21.5 times greater in a leg with an ABI less than 0.40 compared to 0.90 (P = 0.021). CONCLUSION: ABI is a good diagnostic test for PVD and a good predictor of the need for amputation.

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The Relationship between Body Mass Index and Diabetic Foot Ulcer, Sensory, Blood Circulation of Foot on Type II Diabetes Mellitus Patients
Yi Kyu Park, Jun Young Lee, Sung Jung, Kang Hyeon Ryu
Journal of the Korean Orthopaedic Association.2018; 53(2): 136. CrossRef
The Relationship Between the Metabolic Syndrome and Systolic Inter-Arm Systolic Blood Pressure Difference in Korean Adults
Hyun Yoon, Seong Woo Choi, Jong Park, So Yeon Ryu, Mi Ah Han, Gwang Seok Kim, Sung Gil Kim, Hye Jong Oh, Cheol Won Choi
Metabolic Syndrome and Related Disorders.2015; 13(8): 329. CrossRef

Relationship between Childhood and Adolescent Obesity and Remnant Lipoprotein.: Yong Jun Choi, Young Eun Jo, Yun Kyung Kim, Sang Mi Ahn, Seung Hee Baik, Sun Hye Jung, Hae Jin Kim, Yoon Sok Chung, Kwan Woo Lee, Dae Jung Kim; J Korean Endocr Soc. 2006;21(4):311-318. Published online August 1, 2006; DOI: https://doi.org/10.3803/jkes.2006.21.4.311

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BACKGROUND
Remnant lipoproteins are the lipolytic degradation product of the triglyceride-rich lipoproteins produced by the liver (very-low-density lipoprotein cholesterol) and intestine (chylomicrons). Recent studies have demonstrated a correlation between remnant lipoproteins and cardiovascular risk. Our study assessed the relationship between obesity and remnant lipoproteins and evaluated the factors related to remnant lipoprotein in children and adolescents. METHODS: Body mass index (BMI), waist circumference, systolic and diastolic blood pressures, body fat mass, total abdominal fat, visceral and subcutaneous fat areas, total cholesterol, triglyceride (TG), LDL cholesterol (LDL-C), HDL cholesterol (HDL-C) and remnant lipoprotein cholesterol (RLP-C) were measured in 135 children and adolescents (67 boys and 68 girls). Plasma RLP fractions were isolated using an immunoaffinity gel containing specific anti-apoB-100 and anti-apoA-I antibodies. The subjects were divided into three groups: the low (< 50 percentile), mid (50~84 percentile), and high (> or = 85 percentile) BMI groups. RESULTS: RLP-C was significantly correlated with age, sex, BMI, waist circumference, systolic and diastolic blood pressures, visceral and subcutaneous fat areas, visceral fat area to subcutaneous fat area ratio (VSR), total cholesterol, TG, HDL-C, apoB, and HOMA-IR. From a multivariate regression analysis, TG (beta = 0.928, P < 0.001) was found to be independently correlated with RLP-C. After excluding TG as an independent variable, a multivariate regression analysis revealed that the HOMA-IR (beta=0.231, P=0.007) and systolic blood pressure (beta=0.169, P=0.046) were independently associated with RLP-C. CONCLUSION: RLP-C was significantly higher in obese children and adolescents. TG, systolic blood pressure, and insulin resistance were related to remnant lipoproteins.

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Epidemiology of Childhood Obesity in Korea
Kyoung Hwa Ha, Dae Jung Kim
Endocrinology and Metabolism.2016; 31(4): 510. CrossRef

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