Endocrinology and Metabolism

Review Article

Mineral, bone & muscle
Incorporating Artificial Intelligence into Fracture Risk Assessment: Using Clinical Imaging to Predict the Unpredictable: Sung Hye Kong; Endocrinol Metab. 2025;40(4):499-507. Published online August 4, 2025; DOI: https://doi.org/10.3803/EnM.2025.2518

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Artificial intelligence (AI) is increasingly being explored as a complementary tool to traditional fracture risk assessment methods. Conventional approaches, such as bone mineral density measurement and established clinical risk calculators, provide populationlevel stratification but often fail to capture the structural nuances of bone fragility. Recent advances in AI—particularly deep learning techniques applied to imaging—enable opportunistic screening and individualized risk estimation using routinely acquired radiographs and computed tomography (CT) data. These models demonstrate improved discrimination for osteoporotic fracture detection and risk prediction, supporting applications such as time-to-event modeling and short-term prognosis. CT- and radiograph-based models have shown superiority over conventional metrics in diverse cohorts, while innovations like multitask learning and survival plots contribute to enhanced interpretability and patient-centered communication. Nevertheless, challenges related to model generalizability, data bias, and automation bias persist. Successful clinical integration will require rigorous external validation, transparent reporting, and seamless embedding into electronic medical systems. This review summarizes recent advances in AI-driven fracture assessment, critically evaluates their clinical promise, and outlines a roadmap for translation into real-world practice.

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Quantitative CT Analysis for Predicting Hip Fragility Fracture Risk in Postmenopausal Women: A Value Assessment
昭春杜
Advances in Clinical Medicine.2026; 16(01): 2897. CrossRef
Diagnostic Value of Opportunistic CT-Based Bone Density Assessment in Patients with and Without Sacral Insufficiency Fractures
Julian Ramin Andresen, Guido Schröder, Thomas Haider, Hans-Christof Schober, Reimer Andresen
Diagnostics.2025; 15(22): 2926. CrossRef

Original Articles

Mineral, bone & muscle
Comparison of the Effectiveness and Hypocalcemia Risk of Antiresorptive Agents in Patients with Hypercalcemia of Malignancy: Sung Hye Kong, Seung Shin Park, Jung Hee Kim, Sang Wan Kim, Se Hyun Kim, Jee Hyun Kim, Chan Soo Shin; Endocrinol Metab. 2025;40(2):289-298. Published online February 4, 2025; DOI: https://doi.org/10.3803/EnM.2024.2132

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Background
Hypercalcemia of malignancy (HCM), a major metabolic complication of cancer, is often managed with bisphosphonates (BP) and, increasingly, with denosumab. We aimed to compare the effectiveness and safety of denosumab with that of BP, with or without calcitonin, in treating HCM.
Methods
This retrospective cohort study was conducted at a tertiary hospital from 2017 to 2022 and included 317 patients treated for HCM. Participants were divided into three treatment groups: denosumab, intravenous (IV) BP only, and IV BP combined with calcitonin. The primary outcomes measured were changes in calcium levels and the incidence of hypocalcemia. Analysis of covariance was used to adjust for age, sex, body mass index, creatinine level, type of malignancy, and the use of furosemide and steroids.
Results
The mean participant age was 65 years, and 37.5% were female. After adjustment, both denosumab and IV BPs were found to effectively lower calcium levels. Denosumab led to a decrease of 2.0 mg/dL (−15.9%), while IV BP alone resulted in a reduction of 1.8 mg/dL (−13.9%). The largest reduction, of 2.7 mg/dL (−20.9%), occurred with IV BP and calcitonin. Both denosumab and IV BP+calcitonin yielded their lowest calcium levels within 48 hours, whereas the IV BP only group reached a nadir within 72 hours. Despite these differences in treatment effectiveness, hypocalcemia occurred significantly less frequently in the denosumab group compared to the other groups.
Conclusion
Denosumab and IV BP were similarly effective in reducing calcium levels. However, IV BP combined with calcitonin yielded a more rapid and pronounced decrease.

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Denosumab

Reactions Weekly.2025; 2067(1): 150. CrossRef

Adrenal gland
The Modified S-GRAS Scoring System for Prognosis in Korean with Adrenocortical Carcinoma: Sun Kyung Baek, Seung Hun Lee, Seung Shin Park, Chang Ho Ahn, Sung Hye Kong, Won Woong Kim, Yu-Mi Lee, Su Jin Kim, Dong Eun Song, Tae-Yon Sung, Kyu Eun Lee, Jung Hee Kim, Kyeong Cheon Jung, Jung-Min Koh; Endocrinol Metab. 2024;39(5):803-812. Published online September 25, 2024; DOI: https://doi.org/10.3803/EnM.2024.2086

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Background
Adrenocortical carcinomas (ACCs) are rare tumors with aggressive but varied prognosis. Stage, Grade, Resection status, Age, Symptoms (S-GRAS) score, based on clinical and pathological factors, was found to best stratify the prognosis of European ACC patients. This study assessed the prognostic performance of modified S-GRAS (mS-GRAS) scores including modified grade (mG) by integrating mitotic counts into the Ki67 index (original grade), in Korean ACC patients.
Methods
Patients who underwent surgery for ACC between January 1996 and December 2022 at three medical centers in Korea were retrospectively analyzed. mS-GRAS scores were calculated based on tumor stage, mG (Ki67 index or mitotic counts), resection status, age, and symptoms. Patients were divided into four groups (0–1, 2–3, 4–5, and 6–9 points) based on total mS-GRAS score. The associations of each variable and mS-GRAS score with recurrence and survival were evaluated using Cox regression analysis, Harrell’s concordance index (C-index), and the Kaplan–Meier method.
Results
Data on mS-GRAS components were available for 114 of the 153 patients who underwent surgery for ACC. These 114 patients had recurrence and death rates of 61.4% and 48.2%, respectively. mS-GRAS score was a significantly better predictor of recurrence (C-index=0.829) and death (C-index=0.747) than each component (P<0.05), except for resection status. mS-GRAS scores correlated with shorter progression-free survival (P=8.34E-24) and overall survival (P=2.72E-13).
Conclusion
mS-GRAS scores showed better prognostic performance than tumor stage and grade in Asian patients who underwent surgery for ACC.

Citations

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External validation of the S-GRAS score for predicting recurrence in patients with adrenocortical carcinoma: implications for adjuvant mitotane therapy
Paula Jimenez-Fonseca, Cristina Álvarez-Escola, Inmaculada Ballester Navarro, Jorge Hernando Cubero, Laura González Fernández, Miguel Ángel Mangas Cruz, Clara Iglesias, Jesús García-Donas, María José Picón, Miguel Paja, Lorena González Batanero, Lourdes G
European Journal of Endocrinology.2025; 193(2): 320. CrossRef

Mineral, Bone & Muscle Big Data Articles (National Health Insurance Service Database)
Elevated Fracture Risks in Patients Using Inhaled Corticosteroids: A Korean Nationwide Study: Sung Hye Kong, Ae Jeong Jo, Chan Mi Park, Kyun Ik Park, Ji Eun Yun, Jung Hee Kim; Endocrinol Metab. 2025;40(1):82-92. Published online August 30, 2024; DOI: https://doi.org/10.3803/EnM.2024.1990

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Background
In this comprehensive retrospective nationwide cohort study, we examined the relationships between various asthma medications and bone health, utilizing data from the National Health Insurance Service database of South Korea.
Methods
From 2015 to 2019, the relevant dataset included 168,611 individuals aged 66 years, among whom 8,747 were diagnosed with asthma. We focused on a subset of 6,173 patients, all 66-year-old women. Participants were categorized into four groups: nonusers of asthma medication (n=2,868), leukotriene antagonist users (n=2,281), inhaled corticosteroid (ICS) users (n=517), and those using a combination of ICS and long-acting beta-agonist (ICS+LABA) medication (n=507). The primary outcomes measured were the incidences of major osteoporotic fractures and hip fractures during the follow-up period.
Results
Over 2.7 years of follow-up, 615 cases of major osteoporotic fractures and 96 cases of hip fractures were recorded. ICS users exhibited a heightened risk of both injuries, with hazard ratios of 1.38 (95% confidence interval [CI], 1.18 to 1.63; P<0.001) for major osteoporotic fractures and 1.56 (95% CI, 1.33 to 1.83; P<0.001) for hip fractures. Similarly elevated risks were observed in the ICS+LABA group. Notably, the risk associated with ICS was particularly pronounced among patients with osteopenia for both fracture types. Overall, the use of ICS, alone or in combination with LABA, in patients with asthma is associated with significantly increased risks of osteoporotic fractures, especially among those with osteopenia.
Conclusion
These findings underscore the importance of considering bone health when managing asthma, especially in older patients and those with existing bone density issues.

Citations

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Osteoporosis Awareness in Asthma Patients Using Inhaled Corticosteroids: A Cross-Sectional Study
Gülcan Öztürk, Berrin Zinnet Eraslan, Serap Diktaş Tahtasakal, Pinar Akpınar, Duygu Silte Karamanlioglu, Feyza Ünlü Özkan, İlknur Aktaş, Sevda Cömert
Sakarya Medical Journal.2025; 15(2): 93. CrossRef
Understanding Glucocorticoid-induced Osteoporosis: Causes, Effects and Management
Mozhdeh Ghamari, Farnoosh Ebrahimzadeh, Kamila Hashemzadeh
Indian Journal of Rheumatology.2025;[Epub] CrossRef

Review Article

Mineral, Bone & Muscle
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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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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Jialing Yu, Sihan Huang, Jianbin Zhang, Zijian Su, Yiming Chang, Keke Liu, Lu Yang, Huiying Guo, Jinshao Ye, Xujing Liang, Xiaojia Chen, An Hong, Yibo Zhang
Journal of Hazardous Materials.2026; 501: 140750. CrossRef
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Hailong Liu, Xin Xu, Longzhuo Du, Wencan Zhang, Yongyuan Guo, Fujian Zhang, Houyi Sun, Haipeng Si, Peilai Liu
Environmental Science & Technology.2026; 60(1): 228. CrossRef
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Yun-Cheng Mei, Tesfaye Abebe Geleta, Ashkan Miri, Prashanth Venkatesan, Yu-Chiang Chao, Yutong Chen, Pei-Hsin Chou, Ren Qian Tee, Yang-hsin Shih
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Elucidating the mechanism of phthalates induced osteoporosis through network toxicology and molecular docking
Xiao Zhang, Xi Zhu, Wenbo Gu, Xusheng Li, Tenyao Niu, Pengcheng Mao, Haifeng Yuan
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Exposure to polycyclic aromatic hydrocarbons and bone mineral density in children and adolescents: results from the 2011–2016 National Health and Nutrition Examination Survey
Peng Zhang, Shuailei Li, Hao Zeng, Yongqiang Sun
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Achilleas Karakoltzidis, Spyros P. Karakitsios, Catherine Gabriel, Dimosthenis Α. Sarigiannis
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European Journal of Pediatrics.2025;[Epub] CrossRef
Non-linear associations between exposure to a mixture of per- and polyfluoroalkyl substances and thyroid hormone levels in Korean adults
Seung Min Chung, Ji-Hyeon Cha, Young-Heun Jung, Ju-Hyun Kim, Jun Sung Moon, Kyu Chang Won
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Editorial

Mineral, Bone & Muscle
Insights from Decades of Supplementing Calcium and Vitamin D: Sung Hye Kong; Endocrinol Metab. 2024;39(3):445-447. Published online May 23, 2024; DOI: https://doi.org/10.3803/EnM.2024.2016

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Total Thyroidectomy: Resection of Two Organs, Not Just One
Erhan Aysan
Endocrinology and Metabolism.2024; 39(5): 696. CrossRef

Brief Report

Diabetes, obesity and metabolism
Ketonuria as an Indicator of Improvement of Renal Function in Patients with Type 2 Diabetes Receiving SGLT2 Inhibitor Treatment: Hyun Ah Kim, Han Na Jang, Sung Hye Kong, Young Lee, Sung Hee Choi, Young Min Cho, Hak Chul Jang, Tae Jung Oh; Endocrinol Metab. 2024;39(4):653-658. Published online May 16, 2024; DOI: https://doi.org/10.3803/EnM.2024.1919

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We investigated the potential association between ketonuria during treatment with sodium-glucose cotransporter-2 (SGLT2) inhibitors and its renoprotective effect in patients with type 2 diabetes. We included 192 patients who had received SGLT2 inhibitors for more than 6 months. After propensity score matching, 52 patients each were allocated into groups with or without ketonuria, respectively. The estimated glomerular filtration rate exhibited a significant improvement only in subjects with ketonuria (without ketonuria: mean difference, –0.02 mL/min/1.73 m² [95% confidence interval (CI), –3.87 to 3.83 mL/min/1.73 m²] vs. with ketonuria: mean difference, 6.81 mL/min/1.73 m² [95% CI, 3.16 to 10.46 mL/min/1.73 m²]; P<0.001). Improvement in estimated glomerular filtration rate at 6 months was associated with female sex and lower baseline body weight, blood pressure, and triglyceride levels in patients with ketonuria. In conclusion, the presence of ketonuria was associated with the renoprotective effect of SGLT2 inhibitors, and female sex and the absence of metabolic syndrome components may serve as additional indicators of these medications’ substantial renoprotective effects in individuals with ketonuria.

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Effects of a continuous remote care intervention including nutritional ketosis on kidney function and inflammation in adults with type 2 diabetes: a post-hoc latent class trajectory analysis
Shaminie J. Athinarayanan, Caroline G. P. Roberts, Stephen D. Phinney, Thomas Weimbs, Allon N. Friedman, Jeff S. Volek
Frontiers in Nutrition.2025;[Epub] CrossRef
SGLT2 Inhibitors as Systemic Metabolic Modulators: Linking Glucose Excretion to Liver Function Restoration
Seung Wan Noh, Han Sol Ryu, Yong-Ho Kim, Byung-Chul Oh
Endocrinology and Metabolism.2025; 40(6): 851. CrossRef
Trigger Warning: How Modern Diet, Lifestyle, and Environment Pull the Trigger on Autosomal Dominant Polycystic Kidney Disease Progression
Melina Messing, Jacob A. Torres, Nickolas Holznecht, Thomas Weimbs
Nutrients.2024; 16(19): 3281. CrossRef

Review Article

Mineral, Bone & Muscle
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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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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Considerations for Endpoints in Lung Transplant Clinical Trials: An ISHLT Consensus Statement
John R. Greenland, Michael Perch, Kieran Halloran, Deborah J. Levine, Eric D. Morrell, Anna Reed, Ciara M. Shaver, Jonathan P. Singer, Stuart C. Sweet, Robin Vos, Shambhu Aryal, Nicholas Avdimiretz, Fay Burrows, Daniel Calabrese, Fiorella Calabrese, Silvi
The Journal of Heart and Lung Transplantation.2026; 45(2): e104. CrossRef
The immunobiology and therapeutic potential of regulatory T cells in autoimmune diseases and allergic diseases
Wen-Wen Xie, Jian-Bin Huang, Yi-Chi Zhou, Jing-Yi Yuan, Jia-Xue Feng, Xiao-Hang Shi, Li Tian, Xian-Hai Zeng, Shu-Qi Qiu, Mei-Zhen Zhao, Bao-Hui Cheng, Hao-Tao Zeng
Frontiers in Immunology.2026;[Epub] CrossRef
Osteoporosis After Menopause and After Drug Therapy: The Molecular Mechanism of Bone Loss and Its Treatment
Kelly I-Rong Lee, Jie-Hong Chen, Kuo-Hu Chen
International Journal of Molecular Sciences.2026; 27(2): 641. CrossRef
Romosozumab as Treatment for Severe Osteoporosis in Heart and Lung Transplant Recipients
Lisa M. Raven, Jacqueline R. Center, Christopher A. Muir
Endocrines.2025; 6(1): 2. CrossRef
Side Effects of Immunosuppressant Drugs After Liver Transplant
Filippo Gabrielli, Elisa Bernasconi, Arianna Toscano, Alessandra Avossa, Alessia Cavicchioli, Pietro Andreone, Stefano Gitto
Pharmaceuticals.2025; 18(3): 342. CrossRef
Exploiting regulatory T cells (Tregs): Cutting-edge therapy for autoimmune diseases
Marwa Hassan, Mohamed Elzallat, Dina Mostafa Mohammed, Mahmoud Balata, Walaa H. El-Maadawy
International Immunopharmacology.2025; 155: 114624. CrossRef
Results of the implementation of a multidisciplinary care protocol for preventing fragility fractures following liver transplantation
A. Monegal, J. L. Carrasco, P. Peris, B. Frade-Sosa, A. Azuaga, H. Florez, A. Dura, N. Guañabens, J. Colmenero
Osteoporosis International.2025; 36(7): 1213. CrossRef
Treatment of osteoporosis in the solid organ transplant recipient: an organ-based approach
Soumya Kurnool, Nandi Shah, Preethika Ekanayake
Therapeutic Advances in Endocrinology and Metabolism.2025;[Epub] CrossRef
Global and regional prevalence of osteoporosis in kidney transplant recipients: a systematic review and meta-analysis
Mobin Ghazaiean, Tahoora Mousavi, Mahmood Moosazadeh
Clinical and Experimental Medicine.2025;[Epub] CrossRef
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Talia Diker Cohen, Idit Dotan, Bronya Calvarysky, Eyal Robenshtok
European Journal of Endocrinology.2025; 193(3): R1. CrossRef
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Francesco Aguanno, Alessia Passaseo, Simona Barbuto, Daniele Vetrano, Guido Zavatta, Guido Marzocchi, Sandro Giannini, Giorgia Comai, Gaetano La Manna, Giuseppe Cianciolo
International Urology and Nephrology.2025;[Epub] CrossRef

Original Articles

Mineral, Bone & Muscle
Protein Signatures of Parathyroid Adenoma according to Tumor Volume and Functionality: Sung Hye Kong, Jeong Mo Bae, Jung Hee Kim, Sang Wan Kim, Dohyun Han, Chan Soo Shin; Endocrinol Metab. 2024;39(2):375-386. Published online March 21, 2024; DOI: https://doi.org/10.3803/EnM.2023.1827

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Background
Parathyroid adenoma (PA) is a common endocrine disease linked to multiple complications, but the pathophysiology of the disease remains incompletely understood. The study aimed to identify the key regulator proteins and pathways of PA according to functionality and volume through quantitative proteomic analyses.
Methods
We conducted a retrospective study of 15 formalin-fixed, paraffin-embedded PA samples from tertiary hospitals in South Korea. Proteins were extracted, digested, and the resulting peptides were analyzed using liquid chromatography-tandem mass spectrometry. Pearson correlation analysis was employed to identify proteins significantly correlated with clinical variables. Canonical pathways and transcription factors were analyzed using Ingenuity Pathway Analysis.
Results
The median age of the participants was 52 years, and 60.0% were female. Among the 8,153 protein groups analyzed, 496 showed significant positive correlations with adenoma volume, while 431 proteins were significantly correlated with parathyroid hormone (PTH) levels. The proteins SLC12A9, LGALS3, and CARM1 were positively correlated with adenoma volume, while HSP90AB2P, HLA-DRA, and SCD5 showed negative correlations. DCPS, IRF2BPL, and FAM98A were the main proteins that exhibited positive correlations with PTH levels, and SLITRK4, LAP3, and AP4E1 had negative correlations. Canonical pathway analysis demonstrated that the RAN and sirtuin signaling pathways were positively correlated with both PTH levels and adenoma volume, while epithelial adherence junction pathways had negative correlations.
Conclusion
Our study identified pivotal proteins and pathways associated with PA, offering potential therapeutic targets. These findings accentuate the importance of proteomics in understanding disease pathophysiology and the need for further research.

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Aberrant Histone Methylation Profile in Patients with Sporadic Primary Hyperparathyroidism
Poonam Kumari, Sanjay Kumar Bhadada, Ashutosh Kumar Arya, Jyotdeep Kaur, Naresh Sachdeva, Uma Nahar Saikia, Divya Dahiya, Anoop Kumar, Chirag Kharbanda, Sudhaker D Rao
The Journal of Clinical Endocrinology & Metabolism.2025;[Epub] CrossRef

Mineral, Bone & Muscle
Development of a Spine X-Ray-Based Fracture Prediction Model Using a Deep Learning Algorithm: Sung Hye Kong, Jae-Won Lee, Byeong Uk Bae, Jin Kyeong Sung, Kyu Hwan Jung, Jung Hee Kim, Chan Soo Shin; Endocrinol Metab. 2022;37(4):674-683. Published online August 5, 2022; DOI: https://doi.org/10.3803/EnM.2022.1461

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Background
Since image-based fracture prediction models using deep learning are lacking, we aimed to develop an X-ray-based fracture prediction model using deep learning with longitudinal data.
Methods
This study included 1,595 participants aged 50 to 75 years with at least two lumbosacral radiographs without baseline fractures from 2010 to 2015 at Seoul National University Hospital. Positive and negative cases were defined according to whether vertebral fractures developed during follow-up. The cases were divided into training (n=1,416) and test (n=179) sets. A convolutional neural network (CNN)-based prediction algorithm, DeepSurv, was trained with images and baseline clinical information (age, sex, body mass index, glucocorticoid use, and secondary osteoporosis). The concordance index (C-index) was used to compare performance between DeepSurv and the Fracture Risk Assessment Tool (FRAX) and Cox proportional hazard (CoxPH) models.
Results
Of the total participants, 1,188 (74.4%) were women, and the mean age was 60.5 years. During a mean follow-up period of 40.7 months, vertebral fractures occurred in 7.5% (120/1,595) of participants. In the test set, when DeepSurv learned with images and clinical features, it showed higher performance than FRAX and CoxPH in terms of C-index values (DeepSurv, 0.612; 95% confidence interval [CI], 0.571 to 0.653; FRAX, 0.547; CoxPH, 0.594; 95% CI, 0.552 to 0.555). Notably, the DeepSurv method without clinical features had a higher C-index (0.614; 95% CI, 0.572 to 0.656) than that of FRAX in women.
Conclusion
DeepSurv, a CNN-based prediction algorithm using baseline image and clinical information, outperformed the FRAX and CoxPH models in predicting osteoporotic fracture from spine radiographs in a longitudinal cohort.

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Artificial intelligence and multimodal imaging in orthopaedics: from technological advances to clinical translation
Guangan Luo, Shuanglong Tan, Lincong Luo, Konghe Hu
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Marie Doussiere, Ahlem Aboud, Gilles Dequen, Vincent Goëb
Journal of Clinical Medicine.2026; 15(2): 491. CrossRef
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Shuang Cao, Sihan Yu, Liangbin Huang, Samuel Seery, Yu Xia, Yongwei Zhao, Zhongzhou Si, Xinxue Zhang, Jiqiao Zhu, Ren Lang, Jiantao Kou, Haiming Zhang, Lin Wei, Guangpeng Zhou, Liying Sun, Lei Wang, Ting Li, Qiang He, Zhijun Zhu
Scientific Reports.2025;[Epub] CrossRef
Accuracy of artificial intelligence in prediction of osteoporotic fractures in comparison with dual-energy X-ray absorptiometry and the Fracture Risk Assessment Tool: A systematic review
Mir Sadat-Ali, Bandar A Alzahrani, Turki S Alqahtani, Musaad A Alotaibi, Abdallah M Alhalafi, Ahmed A Alsousi, Abdullah M Alasiri
World Journal of Orthopedics.2025;[Epub] CrossRef
Deep learning-based identification of vertebral fracture and osteoporosis in lateral spine radiographs and DXA vertebral fracture assessment to predict incident fracture
Namki Hong, Sang Wouk Cho, Young Han Lee, Chang Oh Kim, Hyeon Chang Kim, Yumie Rhee, William D Leslie, Steven R Cummings, Kyoung Min Kim
Journal of Bone and Mineral Research.2025; 40(5): 628. CrossRef
Aplicaciones de aprendizaje profundo en ortopedia: una revisión sistemática y futuras direcciones
R González-Pola, A Herrera-Lozano, LF Graham-Nieto, G Zermeño-García
Acta Ortopédica Mexicana.2025; 39(3): 152. CrossRef
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O. Venkata Siva, M. S. Anbarasi
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Dongfeng Yuan, Haicang Zhang, Liping Tong, Di Chen
Advanced Intelligent Discovery.2025;[Epub] CrossRef
Incorporating Artificial Intelligence into Fracture Risk Assessment: Using Clinical Imaging to Predict the Unpredictable
Sung Hye Kong
Endocrinology and Metabolism.2025; 40(4): 499. CrossRef
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Mineral, Bone & Muscle
Effect of Vitamin D Supplementation on Risk of Fractures and Falls According to Dosage and Interval: A Meta-Analysis: Sung Hye Kong, Han Na Jang, Jung Hee Kim, Sang Wan Kim, Chan Soo Shin; Endocrinol Metab. 2022;37(2):344-358. Published online April 25, 2022; DOI: https://doi.org/10.3803/EnM.2021.1374

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Background
Although recent studies comparing various dosages and intervals of vitamin D supplementation have been published, it is yet to be elucidated whether there is an appropriate dose or interval to provide benefit regarding fracture risk. We aimed to assess the published evidence available to date regarding the putative beneficial effects of vitamin D supplements on fractures and falls according to various dosages and intervals.
Methods
We performed a meta-analysis of randomized controlled studies reporting associations between vitamin D supplementation and the risks of fractures and falls in PubMed, EMBASE, and Cochrane library. Studies with supplements of ergocalciferol or calcitriol, those with a number of event ≤10, or those with a follow-up duration of less than 6 months were also excluded.
Results
Thirty-two studies were included in the final analysis. Vitamin D supplementation with daily dose of 800 to 1,000 mg was associated with lower risks of osteoporotic fracture and fall (pooled relative risk [RR], 0.87; 95% confidence interval [CI], 0.78 to 0.97 and RR, 0.91; 95% CI, 0.85 to 0.98), while studies with <800 or >1,000 mg/day did not. Also, among intervals, daily administration of vitamin D was associated with the reduced risk of falls, while intermittent dose was not. Also, patients with vitamin D deficiency showed a significant risk reduction of falls after vitamin D supplementation.
Conclusion
Daily vitamin D dose of 800 to 1,000 IU was the most probable way to reduce the fracture and fall risk. Further studies designed with various regimens and targeted vitamin D levels are required to elucidate the benefits of vitamin D supplements.

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Review Article

Mineral, Bone & Muscle
Applications of Machine Learning in Bone and Mineral Research: Sung Hye Kong, Chan Soo Shin; Endocrinol Metab. 2021;36(5):928-937. Published online October 21, 2021; DOI: https://doi.org/10.3803/EnM.2021.1111

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Abstract PDF PubReader ePub

In this unprecedented era of the overwhelming volume of medical data, machine learning can be a promising tool that may shed light on an individualized approach and a better understanding of the disease in the field of osteoporosis research, similar to that in other research fields. This review aimed to provide an overview of the latest studies using machine learning to address issues, mainly focusing on osteoporosis and fractures. Machine learning models for diagnosing and classifying osteoporosis and detecting fractures from images have shown promising performance. Fracture risk prediction is another promising field of research, and studies are being conducted using various data sources. However, these approaches may be biased due to the nature of the techniques or the quality of the data. Therefore, more studies based on the proposed guidelines are needed to improve the technical feasibility and generalizability of artificial intelligence algorithms.

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Original Articles

Clinical Study
Radioactive Parathyroid Adenomas on Sestamibi Scans: Low Parathyroid Hormone Secretory Potential and Large Volume: Sung Hye Kong, Jung Hee Kim, Sang Wan Kim, Chan Soo Shin; Endocrinol Metab. 2021;36(2):351-358. Published online April 6, 2021; DOI: https://doi.org/10.3803/EnM.2020.823

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Background
We investigated the clinical characteristics of parathyroid adenomas according to radioactivity on ^99mTc-methoxyisobutylisonitrile (^99mTc-MIBI) single-photon emission computed tomography/computed tomography (SPECT/CT) in primary hyperparathyroidism (PHPT) patients.
Methods
The study included 217 patients diagnosed with PHPT from 2000 to 2019 at Seoul National University Hospital who underwent ^99mTc-MIBI SPECT/CT scans. On SPECT/CT, the radioactivity of parathyroid adenomas was measured as the ratio of the mean radioactivity count of the parathyroid adenoma to that of the contralateral thyroid.
Results
Tumors were localized by MIBI scans in 190 patients (MIBI [+] group) and by ultrasound or parathyroid four-dimensional CT in 27 patients (MIBI [–] group). The mean age was 55 years, and mean body mass index was 23.4 kg/m². Patients in the MIBI (+) group had higher parathyroid hormone (iPTH) and lower 25-hydroxy vitamin D levels than those in the MIBI (–) group (168.0 pg/mL [interquartile range, IQR, 111.0 to 250.7] vs. 134.7 pg/mL [IQR, 98.2 to 191.2], P=0.049; 15.4 ng/mL [IQR, 11.1 to 20.8] vs. 21.2 ng/mL [IQR, 13.9 to 24.8], P=0.012, respectively). Patients in the MIBI (+) group had larger tumor volumes, but lower iPTH/volume ratios than those in the MIBI (–) group (1,216.66 [IQR, 513.40 to 2,663.02], 499.82 mm³ [IQR, 167.77 to 1,229.80], P=0.002; 0.18 [IQR, 0.08 to 0.46], 0.40 pg/mL/mm³ [IQR, 0.16 to 1.29], P=0.016, respectively). Adenoma radioactivity was positively correlated with calcium, iPTH, and volume (r=0.180, P=0.020; r=0.208, P=0.006; r=0.288, P<0.001, respectively), but not with iPTH/volume.
Conclusion
Parathyroid adenomas with positive MIBI scans had larger volumes and higher iPTH than adenomas with negative scans, but lower iPTH per unit volume.

Citations

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Study on Uptake Ratio of ^99mTc-MIBI Parathyroid Scan
Jung-Soo Kim, Jin-Eui Kim
Journal of Radiological Science and Technology.2025; 48(5): 513. CrossRef
Protein Signatures of Parathyroid Adenoma according to Tumor Volume and Functionality
Sung Hye Kong, Jeong Mo Bae, Jung Hee Kim, Sang Wan Kim, Dohyun Han, Chan Soo Shin
Endocrinology and Metabolism.2024; 39(2): 375. CrossRef
Incidentally detected follicular thyroid carcinoma mimicking parathyroid adenoma on Tc-99m MIBI scan: A case report
Yeon-Hee Han, Hwan-Jeong Jeong, Sun Young Lee, Seok Tae Lim
Medicine.2024; 103(18): e38107. CrossRef
Atypical parathyroid tumor: clinical and parathyroid hormone response to surgical treatment
Antonio Giulio Napolitano, Massimo Monacelli, Valeria Liparulo, Eleonora Coviello, Domenico Pourmolkara, Stefano Avenia, Andrea Polistena
Annals of Surgical Treatment and Research.2023; 105(2): 76. CrossRef
The Relationship between Planar and SPECT/CT Parameters and Functional Markers in Primary Hyperparathyroidism
Guler Silov, Serpil Erdogan Ozbodur
Diagnostics.2023; 13(20): 3182. CrossRef

Clinical Study
Identification of Novel Genetic Variants Related to Trabecular Bone Score in Community-Dwelling Older Adults: Sung Hye Kong, Ji Won Yoon, Jung Hee Kim, JooYong Park, Jiyeob Choi, Ji Hyun Lee, A Ram Hong, Nam H. Cho, Chan Soo Shin; Endocrinol Metab. 2020;35(4):801-810. Published online November 24, 2020; DOI: https://doi.org/10.3803/EnM.2020.735

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Background
As the genetic variants of trabecular bone microarchitecture are not well-understood, we performed a genome-wide association study to identify genetic determinants of bone microarchitecture analyzed by trabecular bone score (TBS).
Methods
TBS-associated genes were discovered in the Ansung cohort (discovery cohort), a community-based rural cohort in Korea, and then validated in the Gene-Environment Interaction and Phenotype (GENIE) cohort (validation cohort), consisting of subjects who underwent health check-up programs. In the discovery cohort, 2,451 participants were investigated for 1.42 million genotyped and imputed markers.
Results
In the validation cohort, identified as significant variants were evaluated in 2,733 participants. An intronic variant in iroquois homeobox 3 (IRX3), rs1815994, was significantly associated with TBS in men (P=3.74E-05 in the discovery cohort, P=0.027 in the validation cohort). Another intronic variant in mitogen-activated protein kinase kinase 5 (MAP2K5), rs11630730, was significantly associated with TBS in women (P=3.05E-09 in the discovery cohort, P=0.041 in the validation cohort). Men with the rs1815994 variant and women with the rs11630730 variant had lower TBS and lumbar spine bone mineral density. The detrimental effects of the rs1815994 variant in men and rs11630730 variant in women were also identified in association analysis (β=–0.0281, β=–0.0465, respectively).
Conclusion
In this study, the rs1815994 near IRX3 in men and rs11630730 near MAP2K5 in women were associated with deterioration of the bone microarchitecture. It is the first study to determine the association of genetic variants with TBS. Further studies are needed to confirm our findings and identify additional variants contributing to the trabecular bone microarchitecture.

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Xinyu Chen, Zhengchao Dou, Joe Eun Son, Meng Duan, Fei Yang, Shankuan Zhu, Chi-Chung Hui
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Yunfeng Zhao, Jin Gao, Hong Feng, Li Jiang
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Jooeun Jeon, Keum Ji Jung, Heejin Kimm, Ji-young Lee, Chung-Mo Nam, Sun Ha Jee
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Mohammad Bidkhori, Mahdi Akbarzadeh, Noushin Fahimfar, Mina Jahangiri, Sahar Seddiq, Bagher Larijani, Iraj Nabipour, Mahsa Mohammad Amoli, Nekoo Panahi, Abbas Dehghan, Kourosh Holakouie-Naieni, Afshin Ostovar, Dengshun Miao
PLOS ONE.2024; 19(9): e0309401. CrossRef

Clinical Study
Subclinical Hypothyroidism Affects the Long-Term Outcomes of Patients Who Undergo Coronary Artery Bypass Grafting Surgery but Not Heart Valve Surgery: Hana Kim, Sung Hye Kong, Jae Hoon Moon, Sang Yoon Kim, Kay-Hyun Park, Jun Sung Kim, Joong Haeng Choh, Young Joo Park, Cheong Lim; Endocrinol Metab. 2020;35(2):308-318. Published online June 24, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.2.308

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Background
The aim of this study was to determine the associations between subclinical hypothyroidism (SCH) and long-term cardiovascular outcomes after coronary artery bypass grafting (CABG) or heart valve surgery (HVS).
Methods
We retrospectively reviewed and compared all-cause mortality, cardiovascular mortality, and cardiovascular events in 461 patients who underwent CABG and 104 patients who underwent HVS.
Results
During a mean±standard deviation follow-up duration of 7.6±3.8 years, there were 187 all-cause deaths, 97 cardiovascular deaths, 127 major adverse cardiovascular events (MACE), 11 myocardial infarctions, one unstable angina, 70 strokes, 30 hospitalizations due to heart failure, 101 atrial fibrillation, and 33 coronary revascularizations. The incidence of all-cause mortality after CABG was significantly higher in patients with SCH (n=36, 55.4%) than in euthyroid patients (n=120, 30.3%), with a hazard ratio of 1.70 (95% confidence interval, 1.10 to 2.63; P=0.018) after adjustment for age, sex, current smoking status, body mass index, underlying diseases, left ventricular dysfunction, and emergency operation. Interestingly, low total triiodothyronine (T3) levels in euthyroid patients who underwent CABG were significantly associated with increased risks of all-cause mortality, cardiovascular mortality, and MACE, but those associations were not observed in HVS patients. Both free thyroxine and thyroid-stimulating hormone levels in euthyroid patients were not related with any cardiovascular outcomes in either the CABG or HVS group.
Conclusion
SCH or low total T3 might be associated with a poor prognosis after CABG, but not after HVS, implying that preoperative thyroid hormonal status may be important in ischemic heart disease patients.

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Subclinical Hypothyroidism as a Risk for Coronary Artery Bypass Grafting
Ricardo Mendes Martins, Felipe José M. Pittella, Beatriz C. de Oliveira, Bernardo G. S. Lima, Caio C. Ferreira, Aline D. Pereira, Wolney A. Martins, Rubens A. C. Filho, Giovanna A. B. Lima, Muhammad Riaz
Cardiovascular Therapeutics.2026;[Epub] CrossRef
The impact of thyroid function on surgical prognosis in patients undergoing cardiac and major vascular surgeries
Qi Sun, Wei Wang, Xiaoming Mao, Hao Liu
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Subclinical hypothyroidism and clinical outcomes after cardiac surgery: A systematic review and meta-analysis
Michele Dell’Aquila, Camilla S. Rossi, Tulio Caldonazo, Gianmarco Cancelli, Lamia Harik, Giovanni J. Soletti, Kevin R. An, Jordan Leith, Hristo Kirov, Mudathir Ibrahim, Michelle Demetres, Arnaldo Dimagli, Mohamed Rahouma, Mario Gaudino
JTCVS Open.2024; 18: 64. CrossRef
Impact of subclinical hypothyroidism on outcomes after coronary artery bypass grafting: a systematic review and meta-analysis
Muhammad O. LARIK, Abdul R. SHAHID, Moeez I. SHIRAZ, Maryam UROOJ
The Journal of Cardiovascular Surgery.2024;[Epub] CrossRef
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Hiba Masri-Iraqi, Yaron Rudman, Carmel Friedrich Dubinchik, Idit Dotan, Talia Diker-Cohen, Liat Sasson, Tzipora Shochat, Ilan Shimon, Eyal Robenshtok, Amit Akirov
Endocrine Research.2023; 48(2-3): 68. CrossRef
Mid-term outcomes of patients with subclinical hypothyroidism after coronary bypass surgery
Dong Zhao, Wei Zhao, Chuangshi Wang, Fei Xu, Wei Zhao, Xieraili Tiemuerniyazi, Hao Ma, Wei Feng
Interdisciplinary CardioVascular and Thoracic Surgery.2023;[Epub] CrossRef
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Olena K. Gogayeva, Anatoliy V. Rudenko, Vasyl V. Lazoryshynets, Serhii A. Rudenko, Tetiana A. Andrushchenko
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International Journal of Cardiology.2022; 363: 159. CrossRef
Hypothyroidism Is Correlated with Ventilator Complications and Longer Hospital Days after Coronary Artery Bypass Grafting Surgery in a Relatively Young Population: A Nationwide, Population-Based Study
Jiun-Yu Lin, Pei-Chi Kao, Yi-Ting Tsai, Chi-Hsiang Chung, Wu-Chien Chien, Chih-Yuan Lin, Chieh-Hua Lu, Chien-Sung Tsai
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Patrick Müller, Melvin Khee-Shing Leow, Johannes W. Dietrich
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Subclinical Hypothyroidism: Prevalence, Health Impact, and Treatment Landscape
Won Sang Yoo, Hyun Kyung Chung
Endocrinology and Metabolism.2021; 36(3): 500. CrossRef

Clinical Study
Protein Expression of Cyclin B1, Transferrin Receptor, and Fibronectin Is Correlated with the Prognosis of Adrenal Cortical Carcinoma: Sun Joon Moon, Jung Hee Kim, Sung Hye Kong, Chan Soo Shin; Endocrinol Metab. 2020;35(1):132-141. Published online March 19, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.1.132

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Background

Adrenal cortical carcinoma (ACC) is a rare cancer with a variable prognosis. Several prognostic factors of ACC have been previously reported, but a proteomic analysis has not yet been performed. This study aimed to investigate prognostic biomarkers for ACC using a proteomic approach.

Methods

We used reverse-phase protein array data from The Cancer Proteome Atlas, and identified differentially expressed proteins in metastatic ACCs. Multivariate Cox regression analysis adjusted by age and staging was used for survival analysis, and the C-index and category-free net reclassification improvement (cfNRI) were utilized to evaluate additive prognostic value.

Results

In 46 patients with ACC, cyclin B1, transferrin receptor (TfR1), and fibronectin were significantly overexpressed in patients with distant metastasis. In multivariate models, high expression of cyclin B1 and TfR1 was significantly associated with mortality (hazard ratio [HR], 6.13; 95% confidence interval [CI], 1.02 to 36.7; and HR, 6.59; 95% CI, 1.14 to 38.2; respectively), whereas high fibronectin expression was not (HR, 3.92; 95% CI, 0.75 to 20.4). Combinations of high cyclin B1/high TfR1, high cyclin B1/high fibronectin, and high TfR1/high fibronectin were strongly associated with mortality ([HR, 13.72; 95% CI, 1.89 to 99.66], [HR, 9.22; 95% CI, 1.34 to 63.55], and [HR, 18.59; 95% CI, 2.54 to 135.88], respectively). In reclassification analyses, cyclin B1, TfR1, fibronectin, and combinations thereof improved the prognostic performance (C-index, 0.78 to 0.82–0.86; cfNRI, all P values <0.05).

Conclusion

In ACC patients, the overexpression of cyclin B1, TfR1, and fibronectin and combinations thereof were associated with poor prognosis.

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Corrigendum

Miscellaneous
Corrigendum: Author's Name Correction. Study Protocol of Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro): Jae Hoon Moon, Ji-hoon Kim, Eun Kyung Lee, Kyu Eun Lee, Sung Hye Kong, Yeo Koon Kim, Woo-Jin Jeong, Chang Yoon Lee, Roh-Eul Yoo, Yul Hwangbo, Young Shin Song, Min Joo Kim, Sun Wook Cho, Su-jin Kim, Eun-Jae Chung, June Young Choi, Chang Hwan Ryu, You Jin Lee, Jeong Hun Hah, Yuh-Seog Jung, Junsun Ryu, Yunji Hwang, Sue K. Park, Ho Kyung Sung, Ka Hee Yi, Do Joon Park, Young Joo Park; Endocrinol Metab. 2018;33(3):427. Published online August 14, 2018; DOI: https://doi.org/10.3803/EnM.2018.33.3.427

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Original Articles

Thyroid
Study Protocol of Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro): Jae Hoon Moon, Ji-hoon Kim, Eun Kyung Lee, Kyu Eun Lee, Sung Hye Kong, Yeo Koon Kim, Woo-jin Jung, Chang Yoon Lee, Roh-Eul Yoo, Yul Hwangbo, Young Shin Song, Min Joo Kim, Sun Wook Cho, Su-jin Kim, Eun Jae Jung, June Young Choi, Chang Hwan Ryu, You Jin Lee, Jeong Hun Hah, Yuh-Seog Jung, Junsun Ryu, Yunji Hwang, Sue K. Park, Ho Kyung Sung, Ka Hee Yi, Do Joon Park, Young Joo Park; Endocrinol Metab. 2018;33(2):278-286. Published online June 21, 2018; DOI: https://doi.org/10.3803/EnM.2018.33.2.278

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Background

The ongoing Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) aims to observe the natural course of papillary thyroid microcarcinoma (PTMC), develop a protocol for active surveillance (AS), and compare the long-term prognosis, quality of life, and medical costs between the AS and immediate surgery groups.

Methods

This multicenter prospective cohort study of PTMC started in June 2016. The inclusion criteria were suspicious of malignancy or malignancy based on fine needle aspiration or core needle biopsy, age of ≥18 years, and a maximum diameter of ≤1 cm. If there was no major organ involvement, no lymph node/distant metastasis, and no variants with poor prognosis, the patients were explained of the pros and cons of immediate surgery and AS before selecting AS or immediate surgery. Follow-up visits (physical examination, ultrasonography, thyroid function, and questionnaires) are scheduled every 6 months during the first 2 years, and then every 1 year thereafter. Progression was defined as a maximum diameter increase of ≥3, ≥2 mm in two dimensions, suspected organ involvement, or lymph node/distant metastasis.

Results

Among 439 enrolled patients, 290 patients (66.1%) chose AS and 149 patients (33.9%) chose immediate surgery. The median follow-up was 6.7 months (range, 0.2 to 11.9). The immediate surgery group had a larger maximum tumor diameter, compared to the AS group (7.1±1.9 mm vs. 6.6±2.0 mm, respectively; P=0.014).

Conclusion

The results will be useful for developing an appropriate PTMC treatment policy based on its natural course and risk factors for progression.

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Thyroid
Star-Shaped Intense Uptake of ¹³¹I on Whole Body Scans Can Reflect Good Therapeutic Effects of Low-Dose Radioactive Iodine Treatment of 1.1 GBq: Sung Hye Kong, Jung Ah Lim, Young Shin Song, Shinje Moon, Ye An Kim, Min Joo Kim, Sun Wook Cho, Jae Hoon Moon, Ka Hee Yi, Do Joon Park, Bo Youn Cho, Young Joo Park; Endocrinol Metab. 2018;33(2):228-235. Published online May 4, 2018; DOI: https://doi.org/10.3803/EnM.2018.33.2.228

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Background

After initial radioactive iodine (RAI) treatment in differentiated thyroid cancer patients, we sometimes observe a star-shaped region of intense uptake of ¹³¹I on whole body scans (WBSs), called a ‘star artifact.’ We evaluated the clinical implications of star artifacts on the success rate of remnant ablation and long-term prognosis.

Methods

Total 636 patients who received ¹³¹I dose of 1.1 GBq for the initial RAI therapy and who did not show distant metastasis at the time of diagnosis were retrospectively evaluated. A negative second WBS was used for evaluating the ablation efficacy of the RAI therapy. Among them, 235 patients (36.9%) showed a star artifact on their first WBS.

Results

In patients with first stimulated thyroglobulin (sTg) levels ≤2 ng/mL, patients with star artifacts had a higher rate of negative second WBS compared with those without star artifacts (77.8% vs. 63.9%, P=0.044), and showed significantly higher recurrence-free survival (P=0.043) during the median 8.0 years (range, 1.0 to 10.0) of follow-up. The 5- and 10-year recurrence rates (5YRR, 10YRR) were also significantly lower in patients with star artifacts compared with those without (0% vs. 4.9%, respectively, P=0.006 for 5YRR; 0% vs. 6.4%, respectively, P=0.005 for 10YRR). However, ablation success rate or recurrence-free survival was not different among patients whose first sTg levels >2 ng/mL regardless of star artifacts.

Conclusion

Therefore, star artifacts at initial RAI therapy imply a good ablation efficacy or a favorable long-term prognosis in patients with sTg levels ≤2 ng/mL.

Citations

Citations to this article as recorded by

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