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12 "Chang Ho Ahn"
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Namgok Lecture 2022
Diabetes, Obesity and Metabolism
Incretin and Pancreatic β-Cell Function in Patients with Type 2 Diabetes
Chang Ho Ahn, Tae Jung Oh, Se Hee Min, Young Min Cho
Endocrinol Metab. 2023;38(1):1-9.   Published online February 13, 2023
DOI: https://doi.org/10.3803/EnM.2023.103
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  • 1 Web of Science
  • 1 Crossref
AbstractAbstract PDFPubReader   ePub   
To maintain normal glucose homeostasis after a meal, it is essential to secrete an adequate amount of insulin from pancreatic β-cells. However, if pancreatic β-cells solely depended on the blood glucose level for insulin secretion, a surge in blood glucose levels would be inevitable after the ingestion of a large amount of carbohydrates. To avoid a deluge of glucose in the bloodstream after a large carbohydrate- rich meal, enteroendocrine cells detect the amount of nutrient absorption from the gut lumen and secrete incretin hormones at scale. Since insulin secretion in response to incretin hormones occurs only in a hyperglycemic milieu, pancreatic β-cells can secrete a “Goldilocks” amount of insulin (i.e., not too much and not too little) to keep the blood glucose level in the normal range. In this regard, pancreatic β-cell sensitivity to glucose and incretin hormones is crucial for maintaining normal glucose homeostasis. In this Namgok lecture 2022, we review the effects of current anti-diabetic medications on pancreatic β-cell sensitivity to glucose and incretin hormones.

Citations

Citations to this article as recorded by  
  • Initial Combination Therapy in Type 2 Diabetes
    Ji Yoon Kim, Nam Hoon Kim
    Endocrinology and Metabolism.2024; 39(1): 23.     CrossRef
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Special Article
Miscellaneous
Immune Checkpoint Inhibitors and Endocrine Disorders: A Position Statement from the Korean Endocrine Society
Hyemi Kwon, Eun Roh, Chang Ho Ahn, Hee Kyung Kim, Cheol Ryong Ku, Kyong Yeun Jung, Ju Hee Lee, Eun Heui Kim, Sunghwan Suh, Sangmo Hong, Jeonghoon Ha, Jun Sung Moon, Jin Hwa Kim, Mi-kyung Kim, The Committee of Clinical Practice Guideline of the Korean Endocrine Society
Endocrinol Metab. 2022;37(6):839-850.   Published online December 26, 2022
DOI: https://doi.org/10.3803/EnM.2022.1627
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  • 321 Download
  • 2 Web of Science
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AbstractAbstract PDFPubReader   ePub   
Immune checkpoint inhibitors (ICIs) including an anti-cytotoxic T-lymphocyte-associated antigen 4 inhibitor, anti-programmed cell death protein 1 (PD-1) inhibitors, and anti-PD-ligand 1 inhibitors are representative therapeutics for various malignancies. In oncology, the application of ICIs is currently expanding to a wider range of malignancies due to their remarkable clinical outcomes. ICIs target immune checkpoints which suppress the activity of T-cells that are specific for tumor antigens, thereby allowing tumor cells to escape the immune response. However, immune checkpoints also play a crucial role in preventing autoimmune reactions. Therefore, ICIs targeting immune checkpoints can trigger various immune-related adverse events (irAEs), especially in endocrine organs. Considering the endocrine organs that are frequently involved, irAEs associated endocrinopathies are frequently life-threatening and have unfavorable clinical implications for patients. However, there are very limited data from large clinical trials that would inform the development of clinical guidelines for patients with irAEs associated endocrinopathies. Considering the current clinical situation, in which the scope and scale of the application of ICIs are increasing, position statements from clinical specialists play an essential role in providing the appropriate recommendations based on both medical evidence and clinical experience. As endocrinologists, we would like to present precautions and recommendations for the management of immune-related endocrine disorders, especially those involving the adrenal, thyroid, and pituitary glands caused by ICIs.

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  • Pembrolizumab plus lenvatinib for radically unresectable or metastatic renal cell carcinoma in the Japanese population
    Ryo Fujiwara, Takeshi yuasa, kenichi kobayashi, tetsuya yoshida, susumu kageyama
    Expert Review of Anticancer Therapy.2023; 23(5): 461.     CrossRef
  • Incidence of Endocrine-Related Dysfunction in Patients Treated with New Immune Checkpoint Inhibitors: A Meta-Analysis and Comprehensive Review
    Won Sang Yoo, Eu Jeong Ku, Eun Kyung Lee, Hwa Young Ahn
    Endocrinology and Metabolism.2023; 38(6): 750.     CrossRef
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Original Articles
Adrenal Gland
Outcome-Based Decision-Making Algorithm for Treating Patients with Primary Aldosteronism
Jung Hee Kim, Chang Ho Ahn, Su Jin Kim, Kyu Eun Lee, Jong Woo Kim, Hyun-Ki Yoon, Yu-Mi Lee, Tae-Yon Sung, Sang Wan Kim, Chan Soo Shin, Jung-Min Koh, Seung Hun Lee
Endocrinol Metab. 2022;37(2):369-382.   Published online April 14, 2022
DOI: https://doi.org/10.3803/EnM.2022.1391
  • 3,764 View
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  • 4 Web of Science
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AbstractAbstract PDFPubReader   ePub   
Background
Optimal management of primary aldosteronism (PA) is crucial due to the increased risk of cardiovascular and cerebrovascular diseases. Adrenal venous sampling (AVS) is the gold standard method for determining subtype but is technically challenging and invasive. Some PA patients do not benefit clinically from surgery. We sought to develop an algorithm to improve decision- making before engaging in AVS and surgery in clinical practice.
Methods
We conducted the ongoing Korean Primary Aldosteronism Study at two tertiary centers. Study A involved PA patients with successful catheterization and a unilateral nodule on computed tomography and aimed to predict unilateral aldosterone-producing adenoma (n=367). Study B involved similar patients who underwent adrenalectomy and aimed to predict postoperative outcome (n=330). In study A, we implemented important feature selection using the least absolute shrinkage and selection operator regression.
Results
We developed a unilateral PA prediction model using logistic regression analysis: lowest serum potassium level ≤3.4 mEq/L, aldosterone-to-renin ratio ≥150, plasma aldosterone concentration ≥30 ng/mL, and body mass index <25 kg/m2 (area under the curve, 0.819; 95% confidence interval, 0.774 to 0.865; sensitivity, 97.6%; specificity, 25.5%). In study B, we identified female, hypertension duration <5 years, anti-hypertension medication <2.5 daily defined dose, and the absence of coronary artery disease as predictors of clinical success, using stepwise logistic regression models (sensitivity, 94.2%; specificity, 49.3%). We validated our algorithm in the independent validation dataset (n=53).
Conclusion
We propose this new outcome-driven diagnostic algorithm, simultaneously considering unilateral aldosterone excess and clinical surgical benefits in PA patients.

Citations

Citations to this article as recorded by  
  • Subtype-specific Body Composition and Metabolic Risk in Patients With Primary Aldosteronism
    Seung Shin Park, Chang Ho Ahn, Sang Wan Kim, Ji Won Yoon, Jung Hee Kim
    The Journal of Clinical Endocrinology & Metabolism.2024; 109(2): e788.     CrossRef
  • Prognostic models to predict complete resolution of hypertension after adrenalectomy in primary aldosteronism: A systematic review and meta‐analysis
    Luigi Marzano, Amir Kazory, Faeq Husain‐Syed, Claudio Ronco
    Clinical Endocrinology.2023; 99(1): 17.     CrossRef
  • 2023 Korean Endocrine Society Consensus Guidelines for the Diagnosis and Management of Primary Aldosteronism
    Jeonghoon Ha, Jung Hwan Park, Kyoung Jin Kim, Jung Hee Kim, Kyong Yeun Jung, Jeongmin Lee, Jong Han Choi, Seung Hun Lee, Namki Hong, Jung Soo Lim, Byung Kwan Park, Jung-Han Kim, Kyeong Cheon Jung, Jooyoung Cho, Mi-kyung Kim, Choon Hee Chung
    Endocrinology and Metabolism.2023; 38(6): 597.     CrossRef
  • Correlation of Histopathologic Subtypes of Primary Aldosteronism with Clinical Phenotypes and Postsurgical Outcomes
    Chang Ho Ahn, You-Bin Lee, Jae Hyeon Kim, Young Lyun Oh, Jung Hee Kim, Kyeong Cheon Jung
    The Journal of Clinical Endocrinology & Metabolism.2023;[Epub]     CrossRef
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Thyroid
Association between Thyroid Function and Heart Rate Monitored by Wearable Devices in Patients with Hypothyroidism
Ki-Hun Kim, Juhui Lee, Chang Ho Ahn, Hyeong Won Yu, June Young Choi, Ho-Young Lee, Won Woo Lee, Jae Hoon Moon
Endocrinol Metab. 2021;36(5):1121-1130.   Published online October 21, 2021
DOI: https://doi.org/10.3803/EnM.2021.1216
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  • 4 Web of Science
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Heart rate (HR) monitored by a wearable device (WD) has demonstrated its clinical feasibility for thyrotoxicosis subjects. However, the association of HR monitored by wearables with hypothyroidism has not been examined. We assessed the association between serum thyroid hormone concentration and three WD-HR parameters in hypothyroid subjects.
Methods
Forty-four subjects scheduled for radioactive iodine therapy (RAI Tx) after thyroid cancer surgery were included. Thirty subjects were prepared for RAI Tx by thyroid hormone withdrawal (hypothyroidism group) and 14 subjects by recombinant human thyrotropin (control group). Three WD-HR parameters were calculated from the HR data collected during rest, during sleep, and from 2:00 AM to 6:00 AM, respectively. We analyzed the changes in conventionally measured resting HR (On-site rHR) and WDHR parameters relative to thyroid hormone levels.
Results
Serum free thyroxine (T4) levels, On-site rHR, and WD-HR parameters were lower in the hypothyroid group than in the control group at the time of RAI Tx. WD-HR parameters also reflected minute changes in free T4 levels. A decrease in On-site rHR and WD-HR parameters by one standard deviation (On-site rHR, approximately 12 bpm; WD-HR parameters, approximately 8 bpm) was associated with a 0.2 ng/dL decrease in free T4 levels (P<0.01) and a 2-fold increase of the odds ratio of hypothyroidism (P<0.01). WD-HR parameters displayed a better goodness-of-fit measure (lower quasi-information criterion value) than On-site rHR in predicting the hypothyroidism.
Conclusion
This study identified WD-HR parameters as informative and easy-to-measure biomarkers to predict hypothyroidism.

Citations

Citations to this article as recorded by  
  • Application of wearables for remote monitoring of oncology patients: A scoping review
    Katharina Cloß, Marlo Verket, Dirk Müller-Wieland, Nikolaus Marx, Katharina Schuett, Edgar Jost, Martina Crysandt, Fabian Beier, Tim H Brümmendorf, Guido Kobbe, Julia Brandts, Malte Jacobsen
    DIGITAL HEALTH.2024;[Epub]     CrossRef
  • Thyroid hormone action during GABAergic neuron maturation: The quest for mechanisms
    Sabine Richard, Juan Ren, Frédéric Flamant
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
  • A machine learning-assisted system to predict thyrotoxicosis using patients’ heart rate monitoring data: a retrospective cohort study
    Kyubo Shin, Jongchan Kim, Jaemin Park, Tae Jung Oh, Sung Hye Kong, Chang Ho Ahn, Joon Ho Moon, Min Joo Kim, Jae Hoon Moon
    Scientific Reports.2023;[Epub]     CrossRef
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Adrenal Gland
Metabolic Subtyping of Adrenal Tumors: Prospective Multi-Center Cohort Study in Korea
Eu Jeong Ku, Chaelin Lee, Jaeyoon Shim, Sihoon Lee, Kyoung-Ah Kim, Sang Wan Kim, Yumie Rhee, Hyo-Jeong Kim, Jung Soo Lim, Choon Hee Chung, Sung Wan Chun, Soon-Jib Yoo, Ohk-Hyun Ryu, Ho Chan Cho, A Ram Hong, Chang Ho Ahn, Jung Hee Kim, Man Ho Choi
Endocrinol Metab. 2021;36(5):1131-1141.   Published online October 21, 2021
DOI: https://doi.org/10.3803/EnM.2021.1149
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  • 8 Web of Science
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Conventional diagnostic approaches for adrenal tumors require multi-step processes, including imaging studies and dynamic hormone tests. Therefore, this study aimed to discriminate adrenal tumors from a single blood sample based on the combination of liquid chromatography-mass spectrometry (LC-MS) and machine learning algorithms in serum profiling of adrenal steroids.
Methods
The LC-MS-based steroid profiling was applied to serum samples obtained from patients with nonfunctioning adenoma (NFA, n=73), Cushing’s syndrome (CS, n=30), and primary aldosteronism (PA, n=40) in a prospective multicenter study of adrenal disease. The decision tree (DT), random forest (RF), and extreme gradient boost (XGBoost) were performed to categorize the subtypes of adrenal tumors.
Results
The CS group showed higher serum levels of 11-deoxycortisol than the NFA group, and increased levels of tetrahydrocortisone (THE), 20α-dihydrocortisol, and 6β-hydroxycortisol were found in the PA group. However, the CS group showed lower levels of dehydroepiandrosterone (DHEA) and its sulfate derivative (DHEA-S) than both the NFA and PA groups. Patients with PA expressed higher serum 18-hydroxycortisol and DHEA but lower THE than NFA patients. The balanced accuracies of DT, RF, and XGBoost for classifying each type were 78%, 96%, and 97%, respectively. In receiver operating characteristics (ROC) analysis for CS, XGBoost, and RF showed a significantly greater diagnostic power than the DT. However, in ROC analysis for PA, only RF exhibited better diagnostic performance than DT.
Conclusion
The combination of LC-MS-based steroid profiling with machine learning algorithms could be a promising one-step diagnostic approach for the classification of adrenal tumor subtypes.

Citations

Citations to this article as recorded by  
  • Treating Primary Aldosteronism-Induced Hypertension: Novel Approaches and Future Outlooks
    Nathan Mullen, James Curneen, Padraig T Donlon, Punit Prakash, Irina Bancos, Mark Gurnell, Michael C Dennedy
    Endocrine Reviews.2024; 45(1): 125.     CrossRef
  • Steroid profiling in adrenal disease
    Danni Mu, Dandan Sun, Xia Qian, Xiaoli Ma, Ling Qiu, Xinqi Cheng, Songlin Yu
    Clinica Chimica Acta.2024; 553: 117749.     CrossRef
  • Serum and hair steroid profiles in patients with nonfunctioning pituitary adenoma undergoing surgery: A prospective observational study
    Seung Shin Park, Yong Hwy Kim, Ho Kang, Chang Ho Ahn, Dong Jun Byun, Man Ho Choi, Jung Hee Kim
    The Journal of Steroid Biochemistry and Molecular Biology.2023; 230: 106276.     CrossRef
  • Recent Updates on the Management of Adrenal Incidentalomas
    Seung Shin Park, Jung Hee Kim
    Endocrinology and Metabolism.2023; 38(4): 373.     CrossRef
  • LC-MS based simultaneous profiling of adrenal hormones of steroids, catecholamines, and metanephrines
    Jongsung Noh, Chaelin Lee, Jung Hee Kim, Seung Woon Myung, Man Ho Choi
    Journal of Lipid Research.2023; 64(11): 100453.     CrossRef
  • 2023 Korean Endocrine Society Consensus Guidelines for the Diagnosis and Management of Primary Aldosteronism
    Jeonghoon Ha, Jung Hwan Park, Kyoung Jin Kim, Jung Hee Kim, Kyong Yeun Jung, Jeongmin Lee, Jong Han Choi, Seung Hun Lee, Namki Hong, Jung Soo Lim, Byung Kwan Park, Jung-Han Kim, Kyeong Cheon Jung, Jooyoung Cho, Mi-kyung Kim, Choon Hee Chung
    Endocrinology and Metabolism.2023; 38(6): 597.     CrossRef
  • Toward Systems-Level Metabolic Analysis in Endocrine Disorders and Cancer
    Aliya Lakhani, Da Hyun Kang, Yea Eun Kang, Junyoung O. Park
    Endocrinology and Metabolism.2023; 38(6): 619.     CrossRef
  • Prevalence and Characteristics of Adrenal Tumors in an Unselected Screening Population
    Ying Jing, Jinbo Hu, Rong Luo, Yun Mao, Zhixiao Luo, Mingjun Zhang, Jun Yang, Ying Song, Zhengping Feng, Zhihong Wang, Qingfeng Cheng, Linqiang Ma, Yi Yang, Li Zhong, Zhipeng Du, Yue Wang, Ting Luo, Wenwen He, Yue Sun, Fajin Lv, Qifu Li, Shumin Yang
    Annals of Internal Medicine.2022; 175(10): 1383.     CrossRef
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Special Articles
Miscellaneous
COVID-19 Vaccination for Endocrine Patients: A Position Statement from the Korean Endocrine Society
Cheol Ryong Ku, Kyong Yeun Jung, Chang Ho Ahn, Jun Sung Moon, Ju Hee Lee, Eun Heui Kim, Hyemi Kwon, Hee Kyung Kim, Sunghwan Suh, Sangmo Hong, Jeonghoon Ha, Eun Roh, Jin Hwa Kim, Mi-kyung Kim, the Committee of Clinical Practice Guideline of the Korean Endocrine Society
Endocrinol Metab. 2021;36(4):757-765.   Published online August 17, 2021
DOI: https://doi.org/10.3803/EnM.2021.404
  • 10,360 View
  • 419 Download
  • 19 Web of Science
  • 21 Crossref
AbstractAbstract PDFPubReader   ePub   
Since the first outbreak of coronavirus disease 2019 (COVID-19), ongoing efforts have been made to discover an efficacious vaccine against COVID-19 to combat the pandemic. In most countries, both mRNA and DNA vaccines have been administered, and their side effects have also been reported. The clinical course of COVID-19 and the effects of vaccination against COVID-19 are both influenced by patients’ health status and involve a systemic physiological response. In view of the systemic function of endocrine hormones, endocrine disorders themselves and the therapeutics used to treat them can influence the outcomes of vaccination for COVID-19. However, there are very limited data to support the development of clinical guidelines for patients with specific medical backgrounds based on large clinical trials. In the current severe circumstances of the COVID-19 pandemic, position statements made by clinical specialists are essential to provide appropriate recommendations based on both medical evidence and clinical experiences. As endocrinologists, we would like to present the medical background of COVID-19 vaccination, as well as precautions to prevent the side effects of COVID-19 vaccination in patients with specific endocrine disorders, including adrenal insufficiency, diabetes mellitus, osteoporosis, autoimmune thyroid disease, hypogonadism, and pituitary disorders.

Citations

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    Mehmet Sözen, Ömercan Topaloğlu, Berrin Çetinarslan, Alev Selek, Zeynep Cantürk, Emre Gezer, Damla Köksalan, Taner Bayraktaroğlu
    Human Vaccines & Immunotherapeutics.2024; 17(12): 5120.     CrossRef
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    Expert Opinion on Drug Safety.2024; 23(3): 323.     CrossRef
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    David Tak Wai Lui, Chi Ho Lee, Yu Cho Woo, Ivan Fan Ngai Hung, Karen Siu Ling Lam
    Nature Reviews Endocrinology.2024;[Epub]     CrossRef
  • Adult-Onset Type 1 Diabetes Development Following COVID-19 mRNA Vaccination
    Hyeyeon Moon, Sunghwan Suh, Mi Kyoung Park
    Journal of Korean Medical Science.2023;[Epub]     CrossRef
  • Prior immunization status of COVID-19 patients and disease severity: A multicenter retrospective cohort study assessing the different types of immunity
    Javaria Aslam, Faisal Shahzad Khan, Muhammad Talha Haris, Hewad Hewadmal, Maryam Khalid, Mohammad Y. Alshahrani, Qurrat-ul-ain Aslam, Irrum Aneela, Urooj Zafar
    Vaccine.2023; 41(2): 598.     CrossRef
  • Mortality and Severity of Coronavirus Disease 2019 in Patients with Long-Term Glucocorticoid Therapy: A Korean Nationwide Cohort Study
    Eu Jeong Ku, Keeho Song, Kyoung Min Kim, Gi Hyeon Seo, Soon Jib Yoo
    Endocrinology and Metabolism.2023; 38(2): 253.     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
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    Shichen Xu, Huixin Yu, Xian Cheng, Jing Wu, Jiandong Bao, Li Zhang
    Vaccine.2023; 41(38): 5648.     CrossRef
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    Yukako Kurematsu, Takako Mohri, Sadanori Okada, Yutaka Takahashi
    JCEM Case Reports.2023;[Epub]     CrossRef
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    İbrahim Mert Erbaş, İrem Ceren Erbaş, Gözde Akın Kağızmanlı, Kübra Yüksek Acinikli, Özge Besci, Korcan Demir, Ece Böber, Nurşen Belet, Ayhan Abacı
    Journal of Clinical Research in Pediatric Endocrinology.2023; 15(3): 248.     CrossRef
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    Tina Kienitz, Gesine Meyer
    Der Internist.2022; 63(1): 12.     CrossRef
  • Endocrine Follow-up During Post-Acute COVID-19: Practical Recommendations Based on Available Clinical Evidence
    Rimesh Pal, Ameya Joshi, Sanjay K. Bhadada, Mainak Banerjee, Suresh Vaikkakara, Satinath Mukhopadhyay
    Endocrine Practice.2022; 28(4): 425.     CrossRef
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    Xi Xiong, Carlos King Ho Wong, Ivan Chi Ho Au, Francisco Tsz Tsun Lai, Xue Li, Eric Yuk Fai Wan, Celine Sze Ling Chui, Esther Wai Yin Chan, Franco Wing Tak Cheng, Kristy Tsz Kwan Lau, Chi Ho Lee, Yu Cho Woo, David Tak Wai Lui, Ian Chi Kei Wong
    Thyroid.2022; 32(5): 505.     CrossRef
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    Mihaela Popescu, Adina Ghemigian, Corina Maria Vasile, Andrei Costache, Mara Carsote, Alice Elena Ghenea
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    Yue Ma, Shui Qiu, Renyi Zhou
    Frontiers in Physiology.2022;[Epub]     CrossRef
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    Ach Taieb, El Euch Mounira
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  • Forty Years Together, New Leap Forward! The 40th Anniversary of the Korean Endocrine Society
    Jong Chul Won, Ki-Hyun Baek
    Endocrinology and Metabolism.2022; 37(6): 851.     CrossRef
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    Hae Dong Choi, Jun Sung Moon
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Adrenal gland
Diagnosis for Pheochromocytoma and Paraganglioma: A Joint Position Statement of the Korean Pheochromocytoma and Paraganglioma Task Force
Eu Jeong Ku, Kyoung Jin Kim, Jung Hee Kim, Mi Kyung Kim, Chang Ho Ahn, Kyung Ae Lee, Seung Hun Lee, You-Bin Lee, Kyeong Hye Park, Yun Mi Choi, Namki Hong, A Ram Hong, Sang-Wook Kang, Byung Kwan Park, Moon-Woo Seong, Myungshin Kim, Kyeong Cheon Jung, Chan Kwon Jung, Young Seok Cho, Jin Chul Paeng, Jae Hyeon Kim, Ohk-Hyun Ryu, Yumie Rhee, Chong Hwa Kim, Eun Jig Lee
Endocrinol Metab. 2021;36(2):322-338.   Published online April 6, 2021
DOI: https://doi.org/10.3803/EnM.2020.908
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AbstractAbstract PDFPubReader   ePub   
Pheochromocytoma and paraganglioma (PPGLs) are rare catecholamine-secreting neuroendocrine tumors but can be life-threatening. Although most PPGLs are benign, approximately 10% have metastatic potential. Approximately 40% cases are reported as harboring germline mutations. Therefore, timely and accurate diagnosis of PPGLs is crucial. For more than 130 years, clinical, molecular, biochemical, radiological, and pathological investigations have been rapidly advanced in the field of PPGLs. However, performing diagnostic studies to localize lesions and detect metastatic potential can be still challenging and complicated. Furthermore, great progress on genetics has shifted the paradigm of genetic testing of PPGLs. The Korean PPGL task force team consisting of the Korean Endocrine Society, the Korean Surgical Society, the Korean Society of Nuclear Medicine, the Korean Society of Pathologists, and the Korean Society of Laboratory Medicine has developed this position statement focusing on the comprehensive and updated diagnosis for PPGLs.

Citations

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  • A Prospective Comparative Study of 18F-FDOPA PET/CT Versus 123I-MIBG Scintigraphy With SPECT/CT for the Diagnosis of Pheochromocytoma and Paraganglioma
    Changhwan Sung, Hyo Sang Lee, Dong Yun Lee, Yong-il Kim, Jae Eun Kim, Sang Ju Lee, Seung Jun Oh, Tae-Yon Sung, Yu-Mi Lee, Young Hoon Kim, Beom-Jun Kim, Jung-Min Koh, Seung Hun Lee, Jin-Sook Ryu
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    A Ram Hong, Ho-Cheol Kang
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    Yin Young Lee, Seung Min Chung
    Journal of Yeungnam Medical Science.2023; 40(4): 435.     CrossRef
  • (Extremely rare intrapericardial location of paraganglioma)
    Jaroslav Zajíc, Aleš Mokráček, Ladislav Pešl, Jiří Haniš, Dita Schaffelhoferová
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  • Change of Computed Tomography-Based Body Composition after Adrenalectomy in Patients with Pheochromocytoma
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  • Evaluation and Management of Bone Health in Patients with Thyroid Diseases: a Position Statement from the Korean Thyroid Association
    A Ram Hong, Hwa Young Ahn, Bu Kyung Kim, Seong Hee Ahn, So Young Park, Min-Hee Kim, Jeongmin Lee, Sun Wook Cho, Ho-Cheol Kang
    International Journal of Thyroidology.2022; 15(1): 1.     CrossRef
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    建新 崔
    Advances in Clinical Medicine.2021; 11(05): 2239.     CrossRef
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Review Article
Hypothalamus and Pituitary gland
Best Achievements in Pituitary and Adrenal Diseases in 2020
Chang Ho Ahn, Jung Hee Kim
Endocrinol Metab. 2021;36(1):51-56.   Published online February 24, 2021
DOI: https://doi.org/10.3803/EnM.2021.108
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  • 162 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract PDFPubReader   ePub   
Significant progress in pituitary and adrenal diseases was made in 2020. This review presents major translational and clinical advances in research on pituitary and adrenal diseases, encompassing their epidemiology, pathogenesis, diagnosis, and clinical management. We address the controversy regarding the nomenclature of pituitary neuroendocrine tumors, omics-based molecular classification of pituitary adenomas, and novel drugs for Cushing’s disease in the field of pituitary diseases. In the field of adrenal diseases, we cover big data-driven epidemiology of adrenal tumors, steroid profiling as a new diagnostic tool, and the utility of scoring systems in the decision-making process of managing primary aldosteronism. This brief article will broaden readers’ understanding of pituitary and adrenal diseases.

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  • Surgical management and outcomes of spinal metastasis of malignant adrenal tumor: A retrospective study of six cases and literature review
    Xiangzhi Ni, Jing Wang, Jiashi Cao, Kun Zhang, Shuming Hou, Xing Huang, Yuanjin Song, Xin Gao, Jianru Xiao, Tielong Liu
    Frontiers in Oncology.2023;[Epub]     CrossRef
  • 2023 Korean Endocrine Society Consensus Guidelines for the Diagnosis and Management of Primary Aldosteronism
    Jeonghoon Ha, Jung Hwan Park, Kyoung Jin Kim, Jung Hee Kim, Kyong Yeun Jung, Jeongmin Lee, Jong Han Choi, Seung Hun Lee, Namki Hong, Jung Soo Lim, Byung Kwan Park, Jung-Han Kim, Kyeong Cheon Jung, Jooyoung Cho, Mi-kyung Kim, Choon Hee Chung
    Endocrinology and Metabolism.2023; 38(6): 597.     CrossRef
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Erratum
Erratum: Correction of Figure. Clinical Implications of Various Criteria for the Biochemical Diagnosis of Insulinoma
Chang Ho Ahn, Lee-Kyung Kim, Jie Eun Lee, Chan-Hyeon Jung, Se-Hee Min, Kyong Soo Park, Seong Yeon Kim, Young Min Cho
Endocrinol Metab. 2017;32(2):306.   Published online June 23, 2017
DOI: https://doi.org/10.3803/EnM.2017.32.2.306
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Original Articles
Adrenal gland
Limited Diagnostic Utility of Plasma Adrenocorticotropic Hormone for Differentiation between Adrenal Cushing Syndrome and Cushing Disease
A Ram Hong, Jung Hee Kim, Eun Shil Hong, I Kyeong Kim, Kyeong Seon Park, Chang Ho Ahn, Sang Wan Kim, Chan Soo Shin, Seong Yeon Kim
Endocrinol Metab. 2015;30(3):297-304.   Published online August 4, 2015
DOI: https://doi.org/10.3803/EnM.2015.30.3.297
  • 4,804 View
  • 68 Download
  • 10 Web of Science
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AbstractAbstract PDFPubReader   
Background

Measurement of the plasma adrenocorticotropic hormone (ACTH) level has been recommended as the first diagnostic test for differentiating between ACTH-independent Cushing syndrome (CS) and ACTH-dependent CS. When plasma ACTH values are inconclusive, a differential diagnosis of CS can be made based upon measurement of the serum dehydroepiandrosterone sulfate (DHEA-S) level and results of the high-dose dexamethasone suppression test (HDST). The aim of this study was to assess the utility of plasma ACTH to differentiate adrenal CS from Cushing' disease (CD) and compare it with that of the HDST results and serum DHEA-S level.

Methods

We performed a retrospective, multicenter study from January 2000 to May 2012 involving 92 patients with endogenous CS. The levels of plasma ACTH, serum cortisol, 24-hour urine free cortisol (UFC) after the HDST, and serum DHEA-S were measured.

Results

Fifty-seven patients had adrenal CS and 35 patients had CD. The area under the curve of plasma ACTH, serum DHEA-S, percentage suppression of serum cortisol, and UFC after HDST were 0.954, 0.841, 0.950, and 0.997, respectively (all P<0.001). The cut-off values for plasma ACTH, percentage suppression of serum cortisol, and UFC after HDST were 5.3 pmol/L, 33.3%, and 61.6%, respectively. The sensitivity and specificity of plasma ACTH measurement were 84.2% and 94.3%, those of serum cortisol were 95.8% and 90.6%, and those of UFC after the HDST were 97.9% and 96.7%, respectively.

Conclusion

Significant overlap in plasma ACTH levels was seen between patients with adrenal CS and those with CD. The HDST may be useful in differentiating between these forms of the disease, especially when the plasma ACTH level alone is not conclusive.

Citations

Citations to this article as recorded by  
  • Development of diagnostic algorithm for Cushing’s syndrome: a tertiary centre experience
    A. Efthymiadis, H. Loo, B. Shine, T. James, B. Keevil, J. W. Tomlinson, A. Pal, R. Pofi
    Journal of Endocrinological Investigation.2024;[Epub]     CrossRef
  • Eurasian clinical guidelines for the diagnosis and treatment of secondary (symptomatic) forms of arterial hypertension (2022)
    I. E. Chazova, N. M. Chikhladze, N. V. Blinova, Zh. E. Belaya, N. M. Danilov, E. M. Elfimova, A. Yu. Litvin, L. Ya. Rozhinskaya, N. Yu. Sviridenko, M. Yu. Shvetsov, V. A. Azizov, E. A. Grigorenko, N. P. Mit’kovskaja, I. I. Mustafaev, A. G. Polupanov, A. S
    Eurasian heart journal.2023; (1): 6.     CrossRef
  • Diagnosis and Management of Pituitary Adenomas
    Nicholas A. Tritos, Karen K. Miller
    JAMA.2023; 329(16): 1386.     CrossRef
  • Distinct serum steroid profiles between adrenal Cushing syndrome and Cushing disease
    Chang Gao, Li Ding, Xiaona Zhang, Menghua Yuan, Shaofang Tang, Wei Li, Yuanyuan Ye, Ming Liu, Qing He
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
  • The Importance of DHEA-S Levels in Cushing’s Syndrome; Is There a Cut-off Value in the Differential Diagnosis?
    Sema Ciftci, Ozlem Soyluk, Alev Selek, Selvinaz Erol, Zeliha Hekimsoy, Ayse Esen, Huseyin Dursun, Serdar Sahin, Gonca Oruk, Meral Mert, Huseyin Soylu, Banu Sarer Yurekli, Melek Eda Ertorer, Tulay Omma, Mehtap Evran, Mine Adas, Seher Tanrikulu, Kadriye Ayd
    Hormone and Metabolic Research.2022; 54(04): 232.     CrossRef
  • Epidemiology and Comorbidity of Adrenal Cushing Syndrome: A Nationwide Cohort Study
    Chang Ho Ahn, Jung Hee Kim, Man Young Park, Sang Wan Kim
    The Journal of Clinical Endocrinology & Metabolism.2021; 106(3): e1362.     CrossRef
  • Metabolic changes in serum steroids for diagnosing and subtyping Cushing’s syndrome
    Chang Ho Ahn, Chaelin Lee, Jaeyoon Shim, Sung Hye Kong, Su-jin Kim, Yong Hwy Kim, Kyu Eun Lee, Chan Soo Shin, Jung Hee Kim, Man Ho Choi
    The Journal of Steroid Biochemistry and Molecular Biology.2021; 210: 105856.     CrossRef
  • Clinical and Molecular Characteristics of PRKACA L206R Mutant Cortisol-Producing Adenomas in Korean Patients
    Insoon Jang, Su-jin Kim, Ra-Young Song, Kwangsoo Kim, Seongmin Choi, Jang-Seok Lee, Min-Kyeong Gwon, Moon Woo Seong, Kyu Eun Lee, Jung Hee Kim
    Endocrinology and Metabolism.2021; 36(6): 1287.     CrossRef
  • Clinical Parameters to Distinguish Silent Corticotroph Adenomas from Other Nonfunctioning Pituitary Adenomas
    Daham Kim, Cheol Ryong Ku, Se Hee Park, Ju Hyung Moon, Eui Hyun Kim, Sun Ho Kim, Eun Jig Lee
    World Neurosurgery.2018; 115: e464.     CrossRef
  • Cushing's syndrome: a practical approach to diagnosis and differential diagnoses
    Joseph M Pappachan, Christian Hariman, Mahamood Edavalath, Julian Waldron, Fahmy W Hanna
    Journal of Clinical Pathology.2017; 70(4): 350.     CrossRef
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Obesity and Metabolism
Clinical Implications of Various Criteria for the Biochemical Diagnosis of Insulinoma
Chang Ho Ahn, Lee-Kyung Kim, Jie Eun Lee, Chan-Hyeon Jung, Se-Hee Min, Kyong Soo Park, Seong Yeon Kim, Young Min Cho
Endocrinol Metab. 2014;29(4):498-504.   Published online December 29, 2014
DOI: https://doi.org/10.3803/EnM.2014.29.4.498
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AbstractAbstract PDFPubReader   
Background

Among the various diagnostic criteria for insulinoma, the ratio criteria have been controversial. However, the amended insulin-glucose ratio exhibited excellent diagnostic performance in a recent retrospective cohort study, although it has not yet been validated in other patient cohorts. We examined the diagnostic performance of the current criteria of the Endocrine Society, insulin-glucose ratio, C-peptide-glucose ratio, and amended ratios in terms of differentiating insulinomas.

Methods

We reviewed the medical records of patients who underwent evaluation for hypoglycemia from 2000 to 2013. Fourteen patients with histopathologically confirmed insulinoma and 18 patients without clinical evidence of insulinoma were included. The results of a prolonged fast test were analyzed according to the abovementioned criteria.

Results

Fulfilling all three Endocrine Society criteria-plasma levels of glucose (<3.0 mmol/L), insulin (≥8 pmol/L), and C-peptide (≥0.2 nmol/L)-exhibited 100% sensitivity and 89% specificity. Fulfilling the glucose and C-peptide criteria showed 100% sensitivity and 83% specificity, while fulfilling the glucose and insulin criteria showed 100% sensitivity and 72% specificity. Among the ratio criteria, the insulin-glucose ratio [>24.0 (pmol/L)/(mmol/L)] gave the highest area under the receiver operating characteristic curve, with 93% sensitivity and 94% specificity.

Conclusion

Fulfilling the glucose, insulin, and C-peptide criteria of the Endocrine Society guidelines exhibited the best diagnostic performance for insulinoma. Nonetheless, the insulin-glucose ratio may still have a role in the biochemical diagnosis of insulinoma.

Citations

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  • Homeostasis Model Assessment of β-Cell Function for Diagnosis of Insulinoma
    Kálmán Bódis, Martin Schön, Laura Dauben, Miriam Wilker, Klaus Strassburger, Volker Burkart, Michael Roden, Karsten Müssig
    The Journal of Clinical Endocrinology & Metabolism.2024; 109(3): e1125.     CrossRef
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    Feng Wang, Zhe Yang, XiuBing Chen, Yiling Peng, HaiXing Jiang, ShanYu Qin
    Discover Oncology.2022;[Epub]     CrossRef
  • Comparison of the diagnostic accuracy of the current guidelines for detecting insulinoma
    Laura Dauben, Marie-Christine Simon, Klaus Strassburger, Volker Burkart, Katharina S Weber, Sven Schinner, Michael Roden, Karsten Müssig
    European Journal of Endocrinology.2019; 180(6): 381.     CrossRef
  • EUS-guided lauromacrogol ablation of insulinomas: a novel treatment
    Shanyu Qin, Yongru Liu, Hongjian Ning, Lin Tao, Wei Luo, Donghong Lu, Zuojie Luo, Yingfen Qin, Jia Zhou, Junqiang Chen, Haixing Jiang
    Scandinavian Journal of Gastroenterology.2018; 53(5): 616.     CrossRef
  • Diagnosis of insulinoma using the ratios of serum concentrations of insulin and C-peptide to glucose during a 5-hour oral glucose tolerance test
    Xu Li, Feng Zhang, Haibing Chen, Haoyong Yu, Jian Zhou, Ming Li, Qing Li, Lianxi Li, Jun Yin, Fang Liu, Yuqian Bao, Junfeng Han, Weiping Jia
    Endocrine Journal.2017; 64(1): 49.     CrossRef
  • Insulinoma in a 5‐Year‐Old Dexter Cow
    C. Binici, S. Plog, O. Kershaw, M. Schmicke, J.H. van der Kolk, K.E. Müller
    Journal of Veterinary Internal Medicine.2016; 30(4): 1402.     CrossRef
  • Vague neuroglycopenic complaints camouflage diagnosis of adolescent insulinoma: a case report
    Kelsee Halpin, Ryan McDonough, Patria Alba, Jared Halpin, Vivekanand Singh, Yun Yan
    International Journal of Pediatric Endocrinology.2016;[Epub]     CrossRef
  • Articles in 'Endocrinology and Metabolism' in 2014
    Won-Young Lee
    Endocrinology and Metabolism.2015; 30(1): 47.     CrossRef
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Obesity and Metabolism
A Novel Mutation in the Von Hippel-Lindau Tumor Suppressor Gene Identified in a Patient Presenting with Gestational Diabetes Mellitus
Yun Hyi Ku, Chang Ho Ahn, Chan-Hyeon Jung, Jie Eun Lee, Lee-Kyung Kim, Soo Heon Kwak, Hye Seung Jung, Kyong Soo Park, Young Min Cho
Endocrinol Metab. 2013;28(4):320-325.   Published online December 12, 2013
DOI: https://doi.org/10.3803/EnM.2013.28.4.320
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AbstractAbstract PDFPubReader   
Background

Von Hippel-Lindau (VHL) disease is an autosomal dominantly inherited, multisystemic tumor syndrome caused by mutations in the VHL gene. To date, more than 1,000 germline and somatic mutations of the VHL gene have been reported. We present a novel mutation in the VHL tumor suppressor gene that presented with gestational diabetes mellitus.

Methods

A 30-year-old woman presented with gestational diabetes mellitus. She sequentially showed multiple pancreatic cysts, spinal cord hemangioblastoma, cerebellar hemangioblastoma, and clear cell type renal cell carcinomas. Also, her father and brother had brain hemangioblastomas. Each of the three exons of the VHL gene was individually amplified by polymerase chain reaction and direct sequencing was performed using an ABI 3730 DNA analyzer.

Results

DNA sequence analysis to determine the presence of VHL mutation in her family revealed del291C, a novel frameshift mutation.

Conclusion

We found a novel mutation in the VHL tumor suppressor gene that presented with gestational diabetes mellitus.

Citations

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  • Diversities of Mechanism in Patients with VHL Syndrome and diabetes: A Report of Two Cases and Literature Review
    Yanlei Wang, Zhaoxiang Liu, Wenhui Zhao, Chenxiang Cao, Luqi Xiao, Jianzhong Xiao
    Diabetes, Metabolic Syndrome and Obesity.2024; Volume 17: 1611.     CrossRef
  • Retinal hemangioblastoma in a patient with Von Hippel-Lindau disease: A case report and literature review
    Yikeng Huang, Weiwen Hu, Xionggao Huang
    Frontiers in Oncology.2022;[Epub]     CrossRef
  • Updates on the Role of Molecular Alterations and NOTCH Signalling in the Development of Neuroendocrine Neoplasms
    Claudia von Arx, Monica Capozzi, Elena López-Jiménez, Alessandro Ottaiano, Fabiana Tatangelo, Annabella Di Mauro, Guglielmo Nasti, Maria Lina Tornesello, Salvatore Tafuto
    Journal of Clinical Medicine.2019; 8(9): 1277.     CrossRef
  • Brief Review of Articles in 'Endocrinology and Metabolism' in 2013
    Won-Young Lee
    Endocrinology and Metabolism.2014; 29(3): 251.     CrossRef
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