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Han Seok Choi  (Choi HS) 14 Articles
Calcium & bone metabolism
Effects of Endocrine-Disrupting Chemicals on Bone Health
So Young Park, Sung Hye Kong, Kyoung Jin Kim, Seong Hee Ahn, Namki Hong, Jeonghoon Ha, Sihoon Lee, Han Seok Choi, Ki-Hyun Baek, Jung-Eun Kim, Sang Wan Kim, on Behalf of Metabolic Bone Disease Study Group of Korean Endocrine Society
Endocrinol Metab. 2024;39(4):539-551.   Published online July 17, 2024
DOI: https://doi.org/10.3803/EnM.2024.1963
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  • 225 Download
AbstractAbstract PDFPubReader   ePub   
This comprehensive review critically examines the detrimental impacts of endocrine-disrupting chemicals (EDCs) on bone health, with a specific focus on substances such as bisphenol A (BPA), per- and polyfluoroalkyl substances (PFASs), phthalates, and dioxins. These EDCs, by interfering with the endocrine system’s normal functioning, pose a significant risk to bone metabolism, potentially leading to a heightened susceptibility to bone-related disorders and diseases. Notably, BPA has been shown to inhibit the differentiation of osteoblasts and promote the apoptosis of osteoblasts, which results in altered bone turnover status. PFASs, known for their environmental persistence and ability to bioaccumulate in the human body, have been linked to an increased osteoporosis risk. Similarly, phthalates, which are widely used in the production of plastics, have been associated with adverse bone health outcomes, showing an inverse relationship between phthalate exposure and bone mineral density. Dioxins present a more complex picture, with research findings suggesting both potential benefits and adverse effects on bone structure and density, depending on factors such as the timing and level of exposure. This review underscores the urgent need for further research to better understand the specific pathways through which EDCs affect bone health and to develop targeted strategies for mitigating their potentially harmful impacts.
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Calcium & bone metabolism
Potential of Calcilytics as a Novel Treatment for Post-Surgical Hypoparathyroidism
Han Seok Choi
Endocrinol Metab. 2024;39(3):534-536.   Published online May 27, 2024
DOI: https://doi.org/10.3803/EnM.2024.2035
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  • 51 Download
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Calcium & bone metabolism
Bone Loss after Solid Organ Transplantation: A Review of Organ-Specific Considerations
Kyoung Jin Kim, Jeonghoon Ha, Sang Wan Kim, Jung-Eun Kim, Sihoon Lee, Han Seok Choi, Namki Hong, Sung Hye Kong, Seong Hee Ahn, So Young Park, Ki-Hyun Baek, on Behalf of Metabolic Bone Disease Study Group of Korean Endocrine Society
Endocrinol Metab. 2024;39(2):267-282.   Published online April 25, 2024
DOI: https://doi.org/10.3803/EnM.2024.1939
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  • 195 Download
AbstractAbstract PDFPubReader   ePub   
This review article investigates solid organ transplantation-induced osteoporosis, a critical yet often overlooked issue, emphasizing its significance in post-transplant care. The initial sections provide a comprehensive understanding of the prevalence and multifactorial pathogenesis of transplantation osteoporosis, including factors such as deteriorating post-transplantation health, hormonal changes, and the impact of immunosuppressive medications. Furthermore, the review is dedicated to organ-specific considerations in transplantation osteoporosis, with separate analyses for kidney, liver, heart, and lung transplantations. Each section elucidates the unique challenges and management strategies pertinent to transplantation osteoporosis in relation to each organ type, highlighting the necessity of an organ-specific approach to fully understand the diverse manifestations and implications of transplantation osteoporosis. This review underscores the importance of this topic in transplant medicine, aiming to enhance awareness and knowledge among clinicians and researchers. By comprehensively examining transplantation osteoporosis, this study contributes to the development of improved management and care strategies, ultimately leading to improved patient outcomes in this vulnerable group. This detailed review serves as an essential resource for those involved in the complex multidisciplinary care of transplant recipients.
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Diabetes, Obesity and Metabolism
Big Data Articles (National Health Insurance Service Database)
Big Data Research in the Field of Endocrine Diseases Using the Korean National Health Information Database
Sun Wook Cho, Jung Hee Kim, Han Seok Choi, Hwa Young Ahn, Mee Kyoung Kim, Eun Jung Rhee
Endocrinol Metab. 2023;38(1):10-24.   Published online February 9, 2023
DOI: https://doi.org/10.3803/EnM.2023.102
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  • 290 Download
  • 17 Web of Science
  • 19 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
The Korean National Health Information Database (NHID) contains big data combining information obtained from the National Health Insurance Service and health examinations. Data are provided in the form of a cohort, and the NHID can be used to conduct longitudinal studies and research on rare diseases. Moreover, data on the cause and date of death are provided by Statistics Korea. Research and publications based on the NHID have increased explosively in the field of endocrine disorders. However, because the data were not collected for research purposes, studies using the NHID have limitations, particularly the need for the operational definition of diseases. In this review, we describe the characteristics of the Korean NHID, operational definitions of endocrine diseases used for research, and an overview of recent studies in endocrinology using the Korean NHID.

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  • Associations Between Physical Activity and the Risk of Hip Fracture Depending on Glycemic Status: A Nationwide Cohort Study
    Kyoung Min Kim, Kyoung Jin Kim, Kyungdo Han, Yumie Rhee
    The Journal of Clinical Endocrinology & Metabolism.2024; 109(3): e1194.     CrossRef
  • Weight change in patients with new‐onset type 2 diabetes mellitus and its association with remission: Comprehensive real‐world data
    Jinyoung Kim, Bongseong Kim, Mee Kyoung Kim, Ki‐Hyun Baek, Ki‐Ho Song, Kyungdo Han, Hyuk‐Sang Kwon
    Diabetes, Obesity and Metabolism.2024; 26(2): 567.     CrossRef
  • Diabetes severity and the risk of depression: A nationwide population-based study
    Yunjung Cho, Bongsung Kim, Hyuk-Sang Kwon, Kyungdo Han, Mee Kyoung Kim
    Journal of Affective Disorders.2024; 351: 694.     CrossRef
  • Information Bias Might Exaggerate Lung Cancer Risk of Patients With Rheumatoid Arthritis
    Nobuyuki Horita, Kaoru Takase-Minegishi
    Journal of Thoracic Oncology.2024; 19(2): 348.     CrossRef
  • Diabetes Duration, Cholesterol Levels, and Risk of Cardiovascular Diseases in Individuals With Type 2 Diabetes
    Mee Kyoung Kim, Kyu Na Lee, Kyungdo Han, Seung-Hwan Lee
    The Journal of Clinical Endocrinology & Metabolism.2024;[Epub]     CrossRef
  • Risk of fracture in patients with myasthenia gravis: a nationwide cohort study in Korea
    Hye-Sun Park, Kyoungsu Kim, Min Heui Yu, Ha Young Shin, Yumie Rhee, Seung Woo Kim, Namki Hong
    Journal of Bone and Mineral Research.2024; 39(6): 688.     CrossRef
  • All-cause and cause-specific mortality risks in individuals with diabetes living alone: A large-scale population-based cohort study
    Jae-Seung Yun, Kyungdo Han, Bongseong Kim, Seung-Hyun Ko, Hyuk-Sang Kwon, Yu-Bae Ahn, Yong-Moon Mark Park, Seung-Hwan Lee
    Diabetes Research and Clinical Practice.2024; 217: 111876.     CrossRef
  • Epidemiology and Trends of Obesity and Bariatric Surgery in Korea
    Kyungdo Han, Jin-Hyung Jung, Su-Min Jeong, Mee Kyoung Kim
    Endocrinology and Metabolism.2024; 39(5): 678.     CrossRef
  • Diabetes severity is strongly associated with the risk of active tuberculosis in people with type 2 diabetes: a nationwide cohort study with a 6-year follow-up
    Ji Young Kang, Kyungdo Han, Seung-Hwan Lee, Mee Kyoung Kim
    Respiratory Research.2023;[Epub]     CrossRef
  • Research on obesity using the National Health Information Database: recent trends
    Eun-Jung Rhee
    Cardiovascular Prevention and Pharmacotherapy.2023; 5(2): 35.     CrossRef
  • Pituitary Diseases and COVID-19 Outcomes in South Korea: A Nationwide Cohort Study
    Jeonghoon Ha, Kyoung Min Kim, Dong-Jun Lim, Keeho Song, Gi Hyeon Seo
    Journal of Clinical Medicine.2023; 12(14): 4799.     CrossRef
  • Risk of Pancreatic Cancer and Use of Dipeptidyl Peptidase 4 Inhibitors in Patients with Type 2 Diabetes: A Propensity Score-Matching Analysis
    Mee Kyoung Kim, Kyungdo Han, Hyuk-Sang Kwon, Soon Jib Yoo
    Endocrinology and Metabolism.2023; 38(4): 426.     CrossRef
  • Prevalence, Treatment Status, and Comorbidities of Hyperthyroidism in Korea from 2003 to 2018: A Nationwide Population Study
    Hwa Young Ahn, Sun Wook Cho, Mi Young Lee, Young Joo Park, Bon Seok Koo, Hang-Seok Chang, Ka Hee Yi
    Endocrinology and Metabolism.2023; 38(4): 436.     CrossRef
  • Is Thyroid Dysfunction Associated with Unruptured Intracranial Aneurysms? A Population-Based, Nested Case–Control Study from Korea
    Hyeree Park, Sun Wook Cho, Sung Ho Lee, Kangmin Kim, Hyun-Seung Kang, Jeong Eun Kim, Aesun Shin, Won-Sang Cho
    Thyroid®.2023; 33(12): 1483.     CrossRef
  • Risk of Cause-Specific Mortality across Glucose Spectrum in Elderly People: A Nationwide Population-Based Cohort Study
    Joonyub Lee, Hun-Sung Kim, Kee-Ho Song, Soon Jib Yoo, Kyungdo Han, Seung-Hwan Lee
    Endocrinology and Metabolism.2023; 38(5): 525.     CrossRef
  • Risk of depression in patients with acromegaly in Korea (2006-2016): a nationwide population-based study
    Shinje Moon, Sangmo Hong, Kyungdo Han, Cheol-Young Park
    European Journal of Endocrinology.2023; 189(3): 363.     CrossRef
  • Cumulative effect of impaired fasting glucose on the risk of dementia in middle-aged and elderly people: a nationwide cohort study
    Jin Yu, Kyu-Na Lee, Hun-Sung Kim, Kyungdo Han, Seung-Hwan Lee
    Scientific Reports.2023;[Epub]     CrossRef
  • Long-Term Cumulative Exposure to High γ-Glutamyl Transferase Levels and the Risk of Cardiovascular Disease: A Nationwide Population-Based Cohort Study
    Han-Sang Baek, Bongseong Kim, Seung-Hwan Lee, Dong-Jun Lim, Hyuk-Sang Kwon, Sang-Ah Chang, Kyungdo Han, Jae-Seung Yun
    Endocrinology and Metabolism.2023; 38(6): 770.     CrossRef
  • Increased Risk of Hip Fracture in Patients with Acromegaly: A Nationwide Cohort Study in Korea
    Jiwon Kim, Namki Hong, Jimi Choi, Ju Hyung Moon, Eui Hyun Kim, Eun Jig Lee, Sin Gon Kim, Cheol Ryong Ku
    Endocrinology and Metabolism.2023; 38(6): 690.     CrossRef
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Calcium & Bone Metabolism
Big Data Articles (National Health Insurance Service Database)
Hip Fracture Risk According to Diabetic Kidney Disease Phenotype in a Korean Population
Seung Eun Lee, Juhwan Yoo, Kyoung-Ah Kim, Kyungdo Han, Han Seok Choi
Endocrinol Metab. 2022;37(1):148-158.   Published online February 28, 2022
DOI: https://doi.org/10.3803/EnM.2021.1315
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  • 5 Web of Science
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Diabetic kidney disease (DKD) is associated with an elevated risk of fractures. However, little is known about the association between proteinuric or non-proteinuric DKD and the risk of hip fracture. Thus, we investigated the incidence of hip fractures among Korean adults with type 2 diabetes mellitus (T2DM) stratified by DKD phenotype.
Methods
In this retrospective cohort study using the Korean National Health Insurance Service database, patients with T2DM who received at least one general health checkup between 2009 and 2012 were followed until the date of hip fracture, death, or December 31, 2018. We classified the DKD phenotype by proteinuria and estimated glomerular filtration rate (eGFR), as follows: no DKD (PUGFR), proteinuric DKD with normal eGFR (PU+GFR), non-proteinuric DKD with reduced eGFR (PUGFR+), and proteinuric DKD with reduced eGFR (PU+GFR+)
Results
The cumulative incidence of hip fractures was highest in the PU+GFR+ group, followed by the PUGFR+ group and the PU+GFR group. After adjustment for confounding factors, the hazard ratio (HR) for hip fracture was still highest in the PU+GFR+ group. However, the PU+GFR group had a higher HR for hip fracture than the PUGFR+ group (PU+GFR+ : HR, 1.69; 95% confidence interval [CI], 1.57 to 1.81; PU+GFR : HR, 1.37; 95% CI, 1.30 to 1.46; PUGFR+ : HR, 1.20; 95% CI, 1.16 to 1.24 using the PUGFR group as the reference category).
Conclusion
The present study demonstrated that DKD was significantly associated with a higher risk of hip fracture, with proteinuria as a major determinant.

Citations

Citations to this article as recorded by  
  • Proteinuria screening and risk of bone fracture: a retrospective cohort study using a nationwide population-based database
    Akira Okada, Akira Honda, Hideaki Watanabe, Yusuke Sasabuchi, Shotaro Aso, Kayo Ikeda Kurakawa, Masaomi Nangaku, Toshimasa Yamauchi, Hideo Yasunaga, Hirotaka Chikuda, Takashi Kadowaki, Satoko Yamaguchi
    Clinical Kidney Journal.2024;[Epub]     CrossRef
  • Fracture risks associated with sodium-glucose cotransporter-2 inhibitors in type 2 diabetes patients across eGFR and albuminuria categories: A population-based study in Hong Kong
    David Tak Wai Lui, Tingting Wu, Eric Ho Man Tang, Ivan Chi Ho Au, Chi Ho Lee, Yu Cho Woo, Kathryn Choon Beng Tan, Carlos King Ho Wong
    Diabetes Research and Clinical Practice.2023; 197: 110576.     CrossRef
  • Diagnose und Management der Osteoporose bei Diabetes mellitus (Update 2023)
    Christian Muschitz, Alexandra Kautzky-Willer, Yvonne Winhofer, Martina Rauner, Judith Haschka, Daniel Cejka, Robert Wakolbinger-Habel, Peter Pietschmann
    Wiener klinische Wochenschrift.2023; 135(S1): 207.     CrossRef
  • Association between exercise and risk of fractures in new-onset type 2 diabetes: a retrospective cohort study
    Seung Eun Lee, Juhwan Yoo, Bong-Seong Kim, Kyoung-Ah Kim, Kyungdo Han, Han Seok Choi
    Archives of Osteoporosis.2023;[Epub]     CrossRef
  • Two-Year Changes in Diabetic Kidney Disease Phenotype and the Risk of Heart Failure: A Nationwide Population-Based Study in Korea
    Seung Eun Lee, Juhwan Yoo, Han Seok Choi, Kyungdo Han, Kyoung-Ah Kim
    Diabetes & Metabolism Journal.2023; 47(4): 523.     CrossRef
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Bone Metabolism
Why Do We Need Proactive Management for Fracture Prevention in Long-Term Glucocorticoid Users?
Han Seok Choi
Endocrinol Metab. 2020;35(3):549-551.   Published online September 22, 2020
DOI: https://doi.org/10.3803/EnM.2020.308
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Miscellaneous
Influence of Vitamin D Deficiency on Progression of Experimental Otitis Media in Rats
Hee-Bok Kim, So Hyun Lim, Chang Gun Cho, Han Seok Choi
Endocrinol Metab. 2018;33(2):296-304.   Published online June 21, 2018
DOI: https://doi.org/10.3803/EnM.2018.33.2.296
  • 4,454 View
  • 49 Download
  • 2 Web of Science
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background

Vitamin D plays an important role in the immune response against infection. The purpose of the present study was to investigate the influence of vitamin D deficiency on the progression of otitis media (OM) using an experimental rat model.

Methods

Four-week-old male Sprague-Dawley rats (n=72) were divided into two groups based on their diet: a control diet group (n=36) and a vitamin D-deficient diet group (n=36). After 8 weeks of diet, experimental OM was induced by inoculation of non-typeable Haemophilus influenzae in the middle ear cavity. The rats were evaluated with otomicroscopy to determine the inflammation in the middle ear mucosa on days 1, 2, 4, 7, and 14 post-inoculation. Bullae from sacrificed rats were collected and analyzed histologically.

Results

The middle ear mucosa from rats with vitamin D deficiency showed a significantly higher thickness than that of controls during the course of OM. The maximum mucosal thickness was 56.0±9.1 µm in the vitamin D deficiency group, and 43.9±9.8 µm in the control group, although there was no significant difference in the tympanic membrane score between the two groups evaluated with otomicroscopy. An immunohistochemical study showed increased expression of interleukin 6 (IL-6) and tumor necrosis factor α in rats manifesting vitamin D deficiency and decreased expression of IL-10 compared with controls.

Conclusion

Our results showed that vitamin D deficiency may exacerbate the pathophysiological changes of OM via altered cytokine production. Therefore, maintaining vitamin D status in the optimal range may be beneficial for proper management of OM.

Citations

Citations to this article as recorded by  
  • The role of vitamin D in subjective tinnitus—A case-control study
    Magdalena Nowaczewska, Stanisław Osiński, Maria Marzec, Michał Wiciński, Katarzyna Bilicka, Wojciech Kaźmierczak, Rafael da Costa Monsanto
    PLOS ONE.2021; 16(8): e0255482.     CrossRef
  • Vitamin D and Otitis Media
    Rebecca E. Walker, Jim Bartley, Carlos A. Camargo, Edwin A. Mitchell
    Current Allergy and Asthma Reports.2019;[Epub]     CrossRef
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Clinical Study
Effects of Single Vitamin D3 Injection (200,000 Units) on Serum Fibroblast Growth Factor 23 and Sclerostin Levels in Subjects with Vitamin D Deficiency
Dongdong Zhang, Da Hea Seo, Han Seok Choi, Hye-Sun Park, Yoon-Sok Chung, Sung-Kil Lim
Endocrinol Metab. 2017;32(4):451-459.   Published online December 14, 2017
DOI: https://doi.org/10.3803/EnM.2017.32.4.451
  • 5,528 View
  • 54 Download
  • 8 Web of Science
  • 10 Crossref
AbstractAbstract PDFPubReader   
Background

Vitamin D deficiency remains common in all age groups and affects skeletal and non-skeletal health. Fibroblast growth factor 23 is a bone-derived hormone that regulates phosphate and 1,25-dihydroxyvitamin D homeostasis as a counter regulatory factor. 1,25-Dihydroxyvitamin D stimulates fibroblast growth factor 23 synthesis in bone, while fibroblast growth factor 23 suppresses 1,25-dihydroxyvitamin D production in the kidney. The aim of this study was to evaluate the effects of vitamin D3 intramuscular injection therapy on serum fibroblast growth factor 23 concentrations, and several other parameters associated with bone metabolism such as sclerostin, dickkopf-1, and parathyroid hormone.

Methods

A total of 34 subjects with vitamin D deficiency (defined by serum 25-hydroxyvitamin D levels below 20 ng/mL) were randomly assigned to either the vitamin D injection group (200,000 units) or placebo treatment group. Serum calcium, phosphate, urine calcium/creatinine, serum 25-hydroxyvitamin D, fibroblast growth factor 23, sclerostin, parathyroid hormone, and dickkopf-1 levels were serially measured after treatment.

Results

Comparing the vitamin D injection group with the placebo group, no significant changes were observed in serum fibroblast growth factor 23, parathyroid hormone, or dickkopf-1 levels. Serum sclerostin concentrations transiently increased at week 4 in the vitamin D group. However, these elevated levels declined later and there were no statistically significant differences as compared with baseline levels.

Conclusion

Serum fibroblast factor 23, sclerostin, parathyroid hormone, and dickkopf-1 levels were not affected significantly by single intramuscular injection of vitamin D3.

Citations

Citations to this article as recorded by  
  • Effect of vitamin D supplementation on circulating fibroblast growth factor-23 concentration in adults with prediabetes
    Lisa Ceglia, Anastassios G. Pittas, Bess Dawson-Hughes
    Aging Clinical and Experimental Research.2023; 35(3): 525.     CrossRef
  • Fibroblast Growth Factor 23 in COVID-19: An Observational Study
    Athena Myrou, Theodoros Aslanidis, Keli Makedou, Athanasios Mitsianis, Aikaterini Thisiadou, Paraskevi Karalazou, Georgios Chatzopoulos, Anastasios Papadopoulos, Antonios Kalis, Dimitrios Giagkoulis, Fotios Lezgidis, Christos Savopoulos
    Cureus.2023;[Epub]     CrossRef
  • The effect of vitamin D supplementation on serum levels of fibroblast growth factor- 23: A systematic review and meta-analysis of randomized controlled trials
    Fatemeh Meshkini, Sepideh Soltani, Cain C.T. Clark, Vivian Tam, David Meyre, Omid Toupchian, Sahar Saraf-Bank, Shima Abdollahi
    The Journal of Steroid Biochemistry and Molecular Biology.2022; 215: 106012.     CrossRef
  • Serum sclerostin levels in osteoporotic fracture patients
    Erwin A. Gorter, Casper R. Reinders, Pieta Krijnen, Natasha M. Appelman-Dijkstra, Inger B. Schipper
    European Journal of Trauma and Emergency Surgery.2022; 48(6): 4857.     CrossRef
  • Clinical Utility of Preoperative Vitamin D3 Injection for Preventing Transient Hypocalcemia after Total Thyroidectomy
    Kwangsoon Kim, Cho Rok Lee, Sang-Wook Kang, Jandee Lee, Jong Ju Jeong, Kee-Hyun Nam, Woong Youn Chung, Claudio Casella
    International Journal of Endocrinology.2021; 2021: 1.     CrossRef
  • The effect of vitamin D supplementation on fibroblast growth factor‐23 in patients with chronic kidney disease: A systematic review and meta‐analysis
    Elmira Karimi, Sama Bitarafan, Seyed Mohammad Mousavi, Nikan Zargarzadeh, Pari Mokhtari, Jessie Hawkins, Alipasha Meysamie, Fariba Koohdani
    Phytotherapy Research.2021; 35(10): 5339.     CrossRef
  • Pharmacodynamics of Oral Cholecalciferol in Healthy Individuals with Vitamin D Deficiency: A Randomized Open-Label Study
    Angelo Fassio, Davide Gatti, Maurizio Rossini, Camilla Benini, Elena Fracassi, Eugenia Bertoldo, Ombretta Viapiana, Stefano Milleri, Matteo Gatti, Giovanni Adami
    Nutrients.2021; 13(7): 2293.     CrossRef
  • Vitamin D Deficiency at Mid-Pregnancy Is Associated with a Higher Risk of Postpartum Glucose Intolerance in Women with Gestational Diabetes Mellitus
    Kyung-Soo Kim, Seok Won Park, Yong-Wook Cho, Soo-Kyung Kim
    Endocrinology and Metabolism.2020; 35(1): 97.     CrossRef
  • Effects of vitamin D supplementation on bone turnover markers and other bone-related substances in subjects with vitamin D deficiency
    Rolf Jorde, Astrid Kamilla Stunes, Julia Kubiak, Ragnar Joakimsen, Guri Grimnes, Per Medbøe Thorsby, Unni Syversen
    Bone.2019; 124: 7.     CrossRef
  • Vitamin D Enhances the Efficacy of Topical Artificial Tears in Patients With Dry Eye Disease
    Jin Sun Hwang, Yoon Pyo Lee, Young Joo Shin
    Cornea.2019; 38(3): 304.     CrossRef
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Clinical Study
Obesity and Hyperglycemia in Korean Men with Klinefelter Syndrome: The Korean Endocrine Society Registry
Seung Jin Han, Kyung-Soo Kim, Wonjin Kim, Jung Hee Kim, Yong-ho Lee, Ji Sun Nam, Ji A Seo, Bu Kyung Kim, Jihyun Lee, Jin Ook Chung, Min-Hee Kim, Tae-Seo Sohn, Han Seok Choi, Seong Bin Hong, Yoon-Sok Chung
Endocrinol Metab. 2016;31(4):598-603.   Published online December 20, 2016
DOI: https://doi.org/10.3803/EnM.2016.31.4.598
  • 5,825 View
  • 38 Download
  • 20 Web of Science
  • 18 Crossref
AbstractAbstract PDFPubReader   
Background

The aim of this study was to investigate the prevalence of obesity in Korean men with Klinefelter syndrome (KS) and the associated risk factors for obesity and hyperglycemia.

Methods

Data were collected retrospectively from medical records from 11 university hospitals in Korea between 1994 and 2014. Subjects aged ≥18 years with newly diagnosed KS were enrolled. The following parameters were recorded at baseline before treatment: chief complaint, height, weight, fasting glucose level, lipid panel, blood pressure, testosterone, luteinizing hormone, follicle-stimulating hormone, karyotyping patterns, and history of hypertension, diabetes, and dyslipidemia.

Results

Data were analyzed from 376 of 544 initially enrolled patients. The rate of the 47 XXY chromosomal pattern was 94.1%. The prevalence of obesity (body mass index ≥25 kg/m2) in Korean men with KS was 42.6%. The testosterone level was an independent risk factor for obesity and hyperglycemia.

Conclusion

Obesity is common in Korean men with KS. Hypogonadism in patients with KS was associated with obesity and hyperglycemia.

Citations

Citations to this article as recorded by  
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    Jong Hyeun Baeck, Tae Jin Kim, Tae Heon Kim, Seung-Ryeol Lee, Dong Soo Park, Hwang Kwon, Ji Eun Shin, Dong Hyeon Lee, Young Dong Yu
    Investigative and Clinical Urology.2023; 64(1): 41.     CrossRef
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    Julia Spiekermann, Kathrin Sinningen, Beatrice Hanusch, Michaela Kleber, Michael M. Schündeln, Cordula Kiewert, Heide Siggelkow, Jakob Höppner, Corinna Grasemann
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
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    International Journal of Endocrinology.2022; 2022: 1.     CrossRef
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    Chiara Mameli, Giulia Fiore, Arianna Sangiorgio, Marta Agostinelli, Giulia Zichichi, Gianvincenzo Zuccotti, Elvira Verduci
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    Shixuan Liu, Tao Yuan, Shuoning Song, Shi Chen, Linjie Wang, Yong Fu, Yingyue Dong, Yan Tang, Weigang Zhao
    BMC Endocrine Disorders.2021;[Epub]     CrossRef
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    Mark J. O’Connor, Emma A. Snyder, Frances J. Hayes
    Current Diabetes Reports.2019;[Epub]     CrossRef
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    Adriana Herrera Lizarazo, Michelle McLoughlin, Maria G. Vogiatzi
    Current Opinion in Endocrinology, Diabetes & Obesity.2019; 26(1): 60.     CrossRef
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    Karthickeyan Chella Krishnan, Margarete Mehrabian, Aldons J. Lusis
    Current Opinion in Lipidology.2018; 29(5): 404.     CrossRef
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    Claus H Gravholt, Simon Chang, Mikkel Wallentin, Jens Fedder, Philip Moore, Anne Skakkebæk
    Endocrine Reviews.2018; 39(4): 389.     CrossRef
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    Temeka Zore, Maria Palafox, Karen Reue
    Molecular Metabolism.2018; 15: 35.     CrossRef
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    Won-Young Lee
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    Karen Reue
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    Parisa Janmohammadi, Gholamreza Mohammadi-Farsani, Hana Arghavani, Mahmoud Arshad, Tayebeh Mokhber
    Journal of Minimally Invasive Surgical Sciences.2017;[Epub]     CrossRef
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    Ji Cheol Bae
    Endocrinology and Metabolism.2016; 31(4): 535.     CrossRef
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Clinical Study
Serum γ-Glutamyl Transferase Is Inversely Associated with Bone Mineral Density Independently of Alcohol Consumption
Han Seok Choi, Kwang Joon Kim, Yumie Rhee, Sung-Kil Lim
Endocrinol Metab. 2016;31(1):64-71.   Published online March 16, 2016
DOI: https://doi.org/10.3803/EnM.2016.31.1.64
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AbstractAbstract PDFPubReader   
Background

γ-Glutamyl transferase (GGT) is a well-known marker of chronic alcohol consumption or hepatobiliary diseases. A number of studies have demonstrated that serum levels of GGT are independently associated with cardiovascular and metabolic disorders. The purpose of this study was to test if serum GGT levels are associated with bone mineral density (BMD) in Korean adults.

Methods

A total of 462 subjects (289 men and 173 women), who visited Severance Hospital for medical checkup, were included in this study. BMD was measured using dual energy X-ray absorptiometry. Cross-sectional association between serum GGT and BMD was evaluated.

Results

As serum GGT levels increased from the lowest tertile (tertile 1) to the highest tertile (tertile 3), BMD decreased after adjusting for confounders such as age, body mass index, amount of alcohol consumed, smoking, regular exercise, postmenopausal state (in women), hypertension, diabetes mellitus, and hypercholesterolemia. A multiple linear regression analysis showed a negative association between log-transformed serum GGT levels and BMD. In a multiple logistic regression analysis, tertile 3 of serum GGT level was associated with an increased risk for low bone mass compared to tertile 1 (odds ratio, 2.271; 95% confidence interval, 1.340 to 3.850; P=0.002).

Conclusion

Serum GGT level was inversely associated with BMD in Korean adults. Further study is necessary to fully elucidate the mechanism of the inverse relationship.

Citations

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Bone Metabolism
Efficacy of a Once-Monthly Pill Containing Ibandronate and Cholecalciferol on the Levels of 25-Hydroxyvitamin D and Bone Markers in Postmenopausal Women with Osteoporosis
In-Jin Cho, Ho-Yeon Chung, Sung-Woon Kim, Jae-Won Lee, Tae-Won Lee, Hye-Soon Kim, Sin-Gon Kim, Han Seok Choi, Sung-Hee Choi, Chan Soo Shin, Ki-Won Oh, Yong-Ki Min, Jung-Min Koh, Yumie Rhee, Dong-Won Byun, Yoon-Sok Chung, Jeong Hyun Park, Dong Jin Chung, Minho Shong, Eun-Gyoung Hong, Chang Beom Lee, Ki Hyun Baek, Moo-Il Kang
Endocrinol Metab. 2015;30(3):272-279.   Published online December 9, 2014
DOI: https://doi.org/10.3803/EnM.2015.30.3.272
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AbstractAbstract PDFPubReader   
Background

The present study evaluated the efficacy of a combination of ibandronate and cholecalciferol on the restoration of the levels of 25-hydroxyvitamin D (25[OH]D) and various bone markers in postmenopausal women with osteoporosis.

Methods

This was a randomized, double-blind, active-controlled, prospective 16-week clinical trial conducted in 20 different hospitals. A total of 201 postmenopausal women with osteoporosis were assigned randomly to one of two groups: the IBN group, which received a once-monthly pill containing 150 mg ibandronate (n=99), or the IBN+ group, which received a once-monthly pill containing 150 mg ibandronate and 24,000 IU cholecalciferol (n=102). Serum levels of 25(OH)D, parathyroid hormone (PTH), and various bone markers were assessed at baseline and at the end of a 16-week treatment period.

Results

After 16 weeks of treatment, the mean serum levels of 25(OH)D significantly increased from 21.0 to 25.3 ng/mL in the IBN+ group but significantly decreased from 20.6 to 17.4 ng/mL in the IBN group. Additionally, both groups exhibited significant increases in mean serum levels of PTH but significant decreases in serum levels of bone-specific alkaline phosphatase and C-telopeptide of type 1 collagen (CTX) at 16 weeks; no significant differences were observed between the groups. However, in subjects with a vitamin D deficiency, IBN+ treatment resulted in a significant decrease in serum CTX levels compared with IBN treatment.

Conclusion

The present findings demonstrate that a once-monthly pill containing ibandronate and cholecalciferol may be useful for the amelioration of vitamin D deficiency in patients with postmenopausal osteoporosis. Moreover, this treatment combination effectively decreased serum levels of resorption markers, especially in subjects with a vitamin D deficiency, over the 16-week treatment period.

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Obesity and Metabolism
Letter: The Relationship of Body Composition and Coronary Artery Calcification in Apparently Healthy Korean Adults (Endocrinol Metab 2013;28:33-40, Jung-Hee Yu et al.)
Han Seok Choi
Endocrinol Metab. 2013;28(2):153-154.   Published online June 18, 2013
DOI: https://doi.org/10.3803/EnM.2013.28.2.153
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Bone Metabolism
Vitamin D Status in Korea
Han Seok Choi
Endocrinol Metab. 2013;28(1):12-16.   Published online March 25, 2013
DOI: https://doi.org/10.3803/EnM.2013.28.1.12
  • 5,543 View
  • 31 Download
  • 36 Web of Science
  • 46 Crossref
AbstractAbstract PDFPubReader   

The majority of the vitamin D in our body is produced by cutaneous synthesis in response to sunlight. As more and more people live in cities and spend the bulk of their time indoors, it can be difficult to get sufficient sun exposure for adequate cutaneous production of vitamin D. Therefore, vitamin D insufficiency has become a very common health problem worldwide. The Korea National Health and Nutrition Examination Survey IV 2008 showed that the prevalence of vitamin D insufficiency, defined as a serum 25-hydroxyvitamin D [25(OH)D] level below 50 nmol/L, was 47.3% in males and 64.5% in females. Only 13.2% of males and 6.7% of females had a serum 25(OH)D level of greater than 75 nmol/L. In Korea, vitamin D insufficiency was more prevalent in young adults than in elderly people, likely due to the indoor lifestyle of younger people. Compared with the United States and Canada, Korea has a lower mean 25(OH)D level and a higher prevalence of vitamin D insufficiency. To improve the vitamin D status of the Korean population, more aggressive policies on food fortification and vitamin D supplementation are needed.

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1-34 PTH Could Reverse Impaired Bone Mineralization Induced By the Overdose of Bisphosphonate.
Kyeong Hye Park, Kwang Joon Kim, Han Seok Choi, Kyoung Min Kim, Eun Young Lee, Seonhui Han, Hyun Sil Kim, Daham Kim, Hannah Seok, Eun Yeong Choe, Yumie Rhee, Sung Kil Lim
Endocrinol Metab. 2012;27(3):247-250.   Published online September 19, 2012
DOI: https://doi.org/10.3803/EnM.2012.27.3.247
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  • 27 Download
AbstractAbstract PDF
Bisphosphonates are the mainstay of osteoporosis treatment. Despite the fact that bisphosphonates have a relatively good safety record and are tolerated well by the majority of patients, serious adverse events have been associated with their use. A 41-year-old man had been diagnosed with osteoporosis and had taken etidronate 200 mg/day daily for 2 years due to the judgmental error. He was referred for the management of refractory bone pain and generalized muscle ache. Serum calcium, phosphate, 25-hydroxy-vitamin D (25(OH)D), and immunoreactive parathyroid hormone (iPTH) were within normal range. Plain X-ray showed multiple fractures. Whole body bone scan confirmed multiple sites of increased bone uptakes. Tetracycline-labeled bone biopsy showed typical findings of osteomalacia. He was diagnosed with iatrogenic, etidronate-induced osteomalacia. The patient received daily parathyroid hormone (PTH) injection for 18 months. PTH effectively reverses impaired bone mineralization caused by etidronate misuse. Currently, he is doing well without bone pain. Bone mineral density significantly increased, and the increased bone uptake was almost normalized after 18 months. This case seems to suggest that human PTH (1-34) therapy, possibly in association with calcium and vitamin D, is associated with important clinical improvements in patients with impaired bone mineralization due to the side effect of bisphosphonate.
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