Endocrinology and Metabolism

From articles published in Endocrinology and Metabolism during the past two years (2022 ~ ).

Original Article

Thyroid Thyroid Cancer Screening
Lower Thyroid Cancer Mortality in Patients Detected by Screening: A Meta-Analysis: Shinje Moon, Young Shin Song, Kyong Yeun Jung, Eun Kyung Lee, Young Joo Park; Endocrinol Metab. 2023;38(1):93-103. Published online February 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1667

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Background
Thyroid cancer screening has contributed to the skyrocketing prevalence of thyroid cancer. However, the true benefit of thyroid cancer screening is not fully understood. This study aimed to evaluate the impact of screening on the clinical outcomes of thyroid cancer by comparing incidental thyroid cancer (ITC) with non-incidental thyroid cancer (NITC) through a meta-analysis.
Methods
PubMed and Embase were searched from inception to September 2022. We estimated and compared the prevalence of high-risk features (aggressive histology of thyroid cancer, extrathyroidal extension, metastasis to regional lymph nodes or distant organs, and advanced tumor-node-metastasis [TNM] stage), thyroid cancer-specific death, and recurrence in the ITC and NITC groups. We also calculated pooled risks and 95% confidence intervals (CIs) of the outcomes derived from these two groups.
Results
From 1,078 studies screened, 14 were included. In comparison to NITC, the ITC group had a lower incidence of aggressive histology (odds ratio [OR], 0.46; 95% CI, 0.31 to 0.7), smaller tumors (mean difference, −7.9 mm; 95% CI, −10.2 to −5.6), lymph node metastasis (OR, 0.64; 95% CI, 0.48 to 0.86), and distant metastasis (OR, 0.42; 95% CI, 0.23 to 0.77). The risks of recurrence and thyroid cancer-specific mortality were also lower in the ITC group (OR, 0.42; 95% CI, 0.25 to 0.71 and OR, 0.46; 95% CI, 0.28 to 0.74) than in the NITC group.
Conclusion
Our findings provide important evidence of a survival benefit from the early detection of thyroid cancer compared to symptomatic thyroid cancer.

Citations

Citations to this article as recorded by

To Screen or Not to Screen?
Do Joon Park
Endocrinology and Metabolism.2023; 38(1): 69. CrossRef
The 2017 United States Preventive Services Task Force Recommendation for Thyroid Cancer Screening Is No Longer the Gold Standard
Ka Hee Yi
Endocrinology and Metabolism.2023; 38(1): 72. CrossRef
Thyroid Cancer Screening: How to Maximize Its Benefits and Minimize Its Harms
Jung Hwan Baek
Endocrinology and Metabolism.2023; 38(1): 75. CrossRef
Delayed Surgery for and Outcomes of Papillary Thyroid Cancer: Is the Pendulum Still Swinging?
Giorgio Grani
Clinical Thyroidology.2023; 35(5): 192. CrossRef

Review Article

Diabetes, Obesity and Metabolism
Glucagon-Like Peptide 1 Therapy: From Discovery to Type 2 Diabetes and Beyond: Adie Viljoen, Stephen C. Bain; Endocrinol Metab. 2023;38(1):25-33. Published online February 6, 2023; DOI: https://doi.org/10.3803/EnM.2022.1642

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The therapeutic benefits of the incretin hormone, glucagon-like peptide 1 (GLP1), for people with type 2 diabetes and/or obesity, are now firmly established. The evidence-base arising from head-to-head comparative effectiveness studies in people with type 2 diabetes, as well as the recommendations by professional guidelines suggest that GLP1 receptor agonists should replace more traditional treatment options such as sulfonylureas and dipeptidyl-peptidase 4 (DPP4) inhibitors. Furthermore, their benefits in reducing cardiovascular events in people with type 2 diabetes beyond improvements in glycaemic control has led to numerous clinical trials seeking to translate this benefit beyond type 2 diabetes. Following early trial results their therapeutic benefit is currently being tested in other conditions including fatty liver disease, kidney disease, and Alzheimer’s disease.

Citations

Citations to this article as recorded by

The Road towards Triple Agonists: Glucagon-Like Peptide 1, Glucose-Dependent Insulinotropic Polypeptide and Glucagon Receptor - An Update
Agnieszka Jakubowska, Carel W. le Roux, Adie Viljoen
Endocrinology and Metabolism.2024; 39(1): 12. CrossRef
Glucagon-like peptide 1 receptor agonists: cardiovascular benefits and mechanisms of action
John R. Ussher, Daniel J. Drucker
Nature Reviews Cardiology.2023; 20(7): 463. CrossRef
A new class of glucose-lowering therapy for type 2 diabetes: the latest development in the incretin arena
Stephen C Bain, Thinzar Min
The Lancet.2023; 402(10401): 504. CrossRef
Flattening the biological age curve by improving metabolic health: to taurine or not to taurine, that’ s the question
Kwok M. Ho, Anna Lee, William Wu, Matthew T.V. Chan, Lowell Ling, Jeffrey Lipman, Jason Roberts, Edward Litton, Gavin M. Joynt, Martin Wong
Journal of Geriatric Cardiology.2023; 20(11): 813. CrossRef

Editorial

Diabetes, Obesity and Metabolism
DPP-4 Inhibitor in Type 2 Diabetes Mellitus Patient with Non-Alcoholic Fatty Liver Disease: Achieving Two Goals at Once?: Ji Cheol Bae; Endocrinol Metab. 2022;37(6):858-860. Published online December 26, 2022; DOI: https://doi.org/10.3803/EnM.2022.605

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Citations

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Vildagliptin inhibits high fat and fetuin-A mediated DPP-4 expression, intracellular lipid accumulation and improves insulin secretory defects in pancreatic beta cells
Snehasish Nag, Samanwita Mandal, Oindrila Mukherjee, Tanmay Majumdar, Satinath Mukhopadhyay, Rakesh Kundu
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease.2024; 1870(3): 167047. CrossRef
Physiology, pharmacology and prospects for dipeptidilpeptidase-4 inhibitors use
D. V. Kurkin, D. A. Bakulin, E. I. Morkovin, A. V. Strygin, Yu. V. Gorbunova, E. V. Volotova, I. E. Makarenko, V. B. Saparova, R. V. Drai, V. I. Petrov
Pharmacy & Pharmacology.2023; 11(1): 19. CrossRef
Comparative effects between old and new antidiabetic agents on metabolic- associated fatty liver disease (MAFLD)
André J. Scheen
Diabetes Epidemiology and Management.2023; 11: 100145. CrossRef
Pharmacokinetic, toxicological, and clinical considerations for the treatment of type 2 diabetes in patients with liver disease: a comprehensive update
André J. Scheen
Expert Opinion on Drug Metabolism & Toxicology.2023; 19(8): 543. CrossRef

Review Articles

Hypothalamus and Pituitary Gland
Independent Skeletal Actions of Pituitary Hormones: Se-Min Kim, Farhath Sultana, Funda Korkmaz, Daria Lizneva, Tony Yuen, Mone Zaidi; Endocrinol Metab. 2022;37(5):719-731. Published online September 28, 2022; DOI: https://doi.org/10.3803/EnM.2022.1573

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Over the past years, pituitary hormones and their receptors have been shown to have non-traditional actions that allow them to bypass the hypothalamus-pituitary-effector glands axis. Bone cells—osteoblasts and osteoclasts—express receptors for growth hormone, follicle stimulating hormone (FSH), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), prolactin, oxytocin, and vasopressin. Independent skeletal actions of pituitary hormones on bone have been studied using genetically modified mice with haploinsufficiency and by activating or inactivating the receptors pharmacologically, without altering systemic effector hormone levels. On another front, the discovery of a TSH variant (TSH-βv) in immune cells in the bone marrow and skeletal action of FSHβ through tumor necrosis factor α provides new insights underscoring the integrated physiology of bone-immune-endocrine axis. Here we discuss the interaction of each pituitary hormone with bone and the potential it holds in understanding bone physiology and as a therapeutic target.

Citations

Citations to this article as recorded by

New tools for bone health assessment in secreting pituitary adenomas
Meliha Melin Uygur, Stefano Frara, Luigi di Filippo, Andrea Giustina
Trends in Endocrinology & Metabolism.2023; 34(4): 231. CrossRef
A Causality between Thyroid Function and Bone Mineral Density in Childhood: Abnormal Thyrotropin May Be Another Pediatric Predictor of Bone Fragility
Dongjin Lee, Moon Ahn
Metabolites.2023; 13(3): 372. CrossRef
The mechanism of oxytocin and its receptors in regulating cells in bone metabolism
Liu Feixiang, Feng Yanchen, Li Xiang, Zhang Yunke, Miao Jinxin, Wang Jianru, Lin Zixuan
Frontiers in Pharmacology.2023;[Epub] CrossRef
To investigate the mechanism of Yiwei Decoction in the treatment of premature ovarian insufficiency-related osteoporosis using transcriptomics, network pharmacology and molecular docking techniques
Weisen Fan, Yan Meng, Jing Zhang, Muzhen Li, Yingjie Zhang, Xintian Qu, Xin Xiu
Scientific Reports.2023;[Epub] CrossRef

Thyroid
Euthyroid Thyroperoxidase Antibody Positivity during Pregnancy, to Treat or Not to Treat?: Tim I. M. Korevaar; Endocrinol Metab. 2022;37(3):387-391. Published online June 29, 2022; DOI: https://doi.org/10.3803/EnM.2022.301

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Thyroperoxidase antibody (TPOAb) positivity is a well-known risk factor for thyroid dysfunction during pregnancy and is associated with a suboptimal response to thyroidal stimulation by human chorionic gonadotropin. About 75% of TPOAb positive women are euthyroid and there seems to be a higher risk of predominantly miscarriage and preterm birth in this subgroup. Nonetheless, clinical decision making with regards to gestational levothyroxine treatment remains difficult due to a lack of large randomized trials. Future studies assessing dose-dependent associations and additional biomarkers that can distinguish low-risk from high-risk individuals will be key in disentangling the crude clinical data.

Citations

Citations to this article as recorded by

Thyroid autoimmunity and adverse pregnancy outcomes: A multiple center retrospective study
Yun Xu, Hui Chen, Meng Ren, Yu Gao, Kan Sun, Hongshi Wu, Rui Ding, Junhui Wang, Zheqing Li, Dan Liu, Zilian Wang, Li Yan
Frontiers in Endocrinology.2023;[Epub] CrossRef
The Clinical Implications of Anti-thyroid Peroxidase Antibodies in Graves’ Disease in Basrah
Emad S Alhubaish, Nassar T Alibrahim, Abbas A Mansour
Cureus.2023;[Epub] CrossRef
Research Progress on the Influence of Autoimmune Thyroid Disease on Pregnancy Outcome
敏李
Advances in Clinical Medicine.2023; 13(08): 13720. CrossRef
The Impact of Maternal Hypothyroidism during Pregnancy on Minipuberty in Boys
Karolina Kowalcze, Robert Krysiak, Anna Obuchowicz
Journal of Clinical Medicine.2023; 12(24): 7649. CrossRef

Original Articles

Diabetes, Obesity and Metabolism Big Data Articles (National Health Insurance Service Database)
Improvement in Age at Mortality and Changes in Causes of Death in the Population with Diabetes: An Analysis of Data from the Korean National Health Insurance and Statistical Information Service, 2006 to 2018: Eugene Han, Sun Ok Song, Hye Soon Kim, Kang Ju Son, Sun Ha Jee, Bong-Soo Cha, Byung-Wan Lee; Endocrinol Metab. 2022;37(3):466-474. Published online June 29, 2022; DOI: https://doi.org/10.3803/EnM.2022.1440

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Background
Diabetes is a leading cause of death that is responsible for 1.6 million annual deaths worldwide. However, the life expectancy and age at death of people with diabetes have been a matter of debate.
Methods
The National Health Insurance Service claims database, merged with death records from the National Statistical Information Service in Korea from 2006 to 2018, was analyzed.
Results
In total, 1,432,567 deaths were collected. The overall age at death increased by 0.44 and 0.26 year/year in the diabetes and control populations, respectively. The disparity in the mean age at death between the diabetes and control populations narrowed from 5.2 years in 2006 to 3.0 years in 2018 (p<0.001). In a subgroup analysis according to the presence of comorbid diseases, the number and proportion of deaths remained steady in the group with diabetes only, but steadily increased in the groups with diabetes combined with dyslipidemia and/or hypertension. Compared to the control population, the increase in the mean death age was higher in the population with diabetes. This trend was more prominent in the groups with dyslipidemia and/or hypertension than in the diabetes only group. Deaths from vascular disease and diabetes decreased, whereas deaths from cancer and pneumonia increased. The decline in the proportion of deaths from vascular disease was greater in the diabetes groups with hypertension and/or dyslipidemia than in the control population.
Conclusion
The age at death in the population with diabetes increased more steeply and reached a comparable level to those without diabetes.

Citations

Citations to this article as recorded by

Analysis of Cause-of-Death Mortality in Children and Young Adults with Diabetes: A Nationwide 10-Year Follow-Up Cohort Study
Iee-Ho Choi, Sang-Woo Yeom, Sun-Young Kim, Jihye You, Jong-Seung Kim, Minsun Kim
Children.2023; 10(2): 358. CrossRef
Age at Mortality in Patients with Type 2 Diabetes Who Underwent Kidney Transplantation: An Analysis of Data from the Korean National Health Insurance and Statistical Information Service, 2006 to 2018
Sun Ok Song, Eugene Han, Kang Ju Son, Bong-Soo Cha, Byung-Wan Lee
Journal of Clinical Medicine.2023; 12(9): 3160. 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
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

Miscellaneous
Fancd2os Reduces Testosterone Production by Inhibiting Steroidogenic Enzymes and Promoting Cellular Apoptosis in Murine Testicular Leydig Cells: Xiang Zhai, Xin-yang Li, Yu-jing Wang, Ke-ru Qin, Jin-rui Hu, Mei-ning Li, Hai-long Wang, Rui Guo; Endocrinol Metab. 2022;37(3):533-546. Published online June 29, 2022; DOI: https://doi.org/10.3803/EnM.2022.1431

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Background
It is well-established that serum testosterone in men decreases with age, yet the underlying mechanism of this change remains elusive.
Methods
The expression patterns of Fancd2 opposite-strand (Fancd2os) in BALB/c male mice and testicular tissue derived cell lines (GC-1, GC-2, TM3, and TM4) were assessed using real-time polymerase chain reaction (RT-PCR), Western blot and immunofluorescence. The Fancd2os-overexpressing or knockdown TM3 cells were constructed by infecting them with lentivirus particles and were used to evaluated the function of Fancd2os. The testosterone production was measured using enzyme linked immunosorbent assay (ELISA) and the steroidogenic enzymes such as steroidogenic acute regulatory protein (StAR), P450 cholesterol side-chain cleavage (P450scc), and 3β-hydroxysteroid dehydrogenase (3β-HSD) were analysed using RT-PCR. The apoptosis of TM3 cells induced by ultraviolet light or testicular tissues was detected using flow cytometry, Western blot or dUTP-biotin nick end labeling (TUNEL) assays. Pearson correlation analysis was used to assess the correlation between the Fancd2os expression and TUNEL-positive staining in mouse testicular Leydig cells.
Results
The Fancd2os protein was predominantly expressed in mouse testicular Leydig cells and its expression increased with age. Fancd2os overexpression inhibited testosterone levels in TM3 Leydig cells, whereas knockdown of Fancd2os elevated testosterone production. Fancd2os overexpression downregulated the levels of StAR, P450scc and 3β-HSD, while Fancd2os knockdown reversed this effect. Fancd2os overexpression promoted ultraviolet light-induced apoptosis of TM3 cells. In contrast, Fancd2os knockdown restrained apoptosis in TM3 cells. In vivo assays revealed that higher Fancd2os levels and mouse age were associated with increased apoptosis in Leydig cells and decreased serum testosterone levels. Pearson correlation analysis exhibited a strong positive correlation between the expression of Fancd2os and TUNEL-positive staining in mouse testicular Leydig cells.
Conclusion
Our findings suggest that Fancd2os regulates testosterone synthesis via both steroidogenic enzymes and the apoptotic pathway.

Citations

Citations to this article as recorded by

An EWAS of dementia biomarkers and their associations with age, African ancestry, and PTSD
Mark W. Miller, Erika J. Wolf, Xiang Zhao, Mark W. Logue, Sage E. Hawn
Clinical Epigenetics.2024;[Epub] CrossRef
Gas/Liquid Chromatography–Mass Spectrometry Analysis of Key Functional Substances Regulating Poll Gland Secretion in Male Camels during Seasonal Estrus
Lijun Dai, Bao Yuan, Bohao Zhang, Wenli Chen, Xixue Yuan, Xinhong Liu, Yuan Gao, Yong Zhang, Quanwei Zhang, Xingxu Zhao
Animals.2023; 13(12): 2024. CrossRef
Benzo[b]fluoranthene induces male reproductive toxicity and apoptosis via Akt-Mdm2-p53 signaling axis in mouse Leydig cells: Integrating computational toxicology and experimental approaches
Chao-feng Shi, Fei Han, Xiao Jiang, Zhonghao Zhang, Yingqing Li, Jiankang Wang, Shengqi Sun, Jin-yi Liu, Jia Cao
Food and Chemical Toxicology.2023; 179: 113941. CrossRef
Induction of apoptosis by cannabidiol and its main metabolites in human Leydig cells
Yuxi Li, Xilin Li, Patrick Cournoyer, Supratim Choudhuri, Lei Guo, Si Chen
Archives of Toxicology.2023; 97(12): 3227. CrossRef

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

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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

Diabetes, Obesity and Metabolism Big Data Articles (National Health Insurance Service Database)
Cumulative Exposure to High γ-Glutamyl Transferase Level and Risk of Diabetes: A Nationwide Population-Based Study: Ji-Yeon Park, Kyungdo Han, Hun-Sung Kim, Jae-Hyoung Cho, Kun-Ho Yoon, Mee Kyoung Kim, Seung-Hwan Lee; Endocrinol Metab. 2022;37(2):272-280. Published online April 13, 2022; DOI: https://doi.org/10.3803/EnM.2022.1416

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Background
Elevated γ-glutamyl transferase (γ-GTP) level is associated with metabolic syndrome, impaired glucose tolerance, and insulin resistance, which are risk factors for type 2 diabetes. We aimed to investigate the association of cumulative exposure to high γ-GTP level with risk of diabetes.
Methods
Using nationally representative data from the Korean National Health Insurance system, 346,206 people who were free of diabetes and who underwent 5 consecutive health examinations from 2005 to 2009 were followed to the end of 2018. High γ-GTP level was defined as those in the highest quartile, and the number of exposures to high γ-GTP level ranged from 0 to 5. Hazard ratio (HR) and 95% confidence interval (CI) for diabetes were analyzed using the multivariable Cox proportional-hazards model.
Results
The mean follow-up duration was 9.2±1.0 years, during which 15,183 (4.4%) patients developed diabetes. There was a linear increase in the incidence rate and the risk of diabetes with cumulative exposure to high γ-GTP level. After adjusting for possible confounders, the HR of diabetes in subjects with five consecutive high γ-GTP levels were 2.60 (95% CI, 2.47 to 2.73) in men and 3.05 (95% CI, 2.73 to 3.41) in women compared with those who never had a high γ-GTP level. Similar results were observed in various subgroup and sensitivity analyses.
Conclusion
There was a linear relationship between cumulative exposure to high γ-GTP level and risk of diabetes. Monitoring and lowering γ-GTP level should be considered for prevention of diabetes in the general population.

Citations

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Validation of Estimated Small Dense Low-Density Lipoprotein Cholesterol Concentration in a Japanese General Population
Keisuke Endo, Ryo Kobayashi, Makito Tanaka, Marenao Tanaka, Yukinori Akiyama, Tatsuya Sato, Itaru Hosaka, Kei Nakata, Masayuki Koyama, Hirofumi Ohnishi, Satoshi Takahashi, Masato Furuhashi
Journal of Atherosclerosis and Thrombosis.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
Elevated gamma‐glutamyl transferase to high‐density lipoprotein cholesterol ratio has a non‐linear association with incident diabetes mellitus: A second analysis of a cohort study
Haofei Hu, Yong Han, Mijie Guan, Ling Wei, Qijun Wan, Yanhua Hu
Journal of Diabetes Investigation.2022; 13(12): 2027. CrossRef
Gamma-glutamyl transferase to high-density lipoprotein cholesterol ratio: A valuable predictor of type 2 diabetes mellitus incidence
Wangcheng Xie, Bin Liu, Yansong Tang, Tingsong Yang, Zhenshun Song
Frontiers in Endocrinology.2022;[Epub] CrossRef

Thyroid Big Data Articles (National Health Insurance Service Database)
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; Endocrinol Metab. 2023;38(4):436-444. Published online July 12, 2023; DOI: https://doi.org/10.3803/EnM.2023.1684

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Background
This study aimed to investigate the changes of incidence and treatment of choice for hyperthyroidism from 2003 to 2018 and explore the treatment-related complications and concomitant comorbidities in South Korea using data from the National Health Insurance Service.
Methods
This is a retrospective observational study. Hyperthyroidism was defined as a case having two or more diagnostic codes of thyrotoxicosis, with antithyroid drug intake for more than 6 months.
Results
The average age-standardized incidence of hyperthyroidism from 2003 to 2018 was 42.23 and 105.13 per 100,000 men and women, respectively. In 2003 to 2004, hyperthyroidism was most often diagnosed in patients in their 50s, but in 2017 to 2018, people were most often diagnosed in their 60s. During the entire period, about 93.7% of hyperthyroidism patients were prescribed with antithyroid drugs, and meanwhile, the annual rates of ablation therapy decrease from 7.68% in 2008 to 4.56% in 2018. Antithyroid drug-related adverse events, mainly agranulocytosis and acute hepatitis, as well as complications of hyperthyroidism such as atrial fibrillation or flutter, osteoporosis, and fractures, occurred more often in younger patients.
Conclusion
In Korea, hyperthyroidism occurred about 2.5 times more in women than in men, and antithyroid drugs were most preferred as the first-line treatment. Compared to the general population, hyperthyroid patients may have a higher risk of atrial fibrillation or flutter, osteoporosis, and fractures at a younger age.

Citations

Citations to this article as recorded by

Long-term effect of thyrotropin-binding inhibitor immunoglobulin on atrial fibrillation in euthyroid patients
Jung-Chi Hsu, Kang-Chih Fan, Ting-Chuan Wang, Shu-Lin Chuang, Ying-Ting Chao, Ting-Tse Lin, Kuan-Chih Huang, Lian-Yu Lin, Lung-Chun Lin
Endocrine Practice.2024;[Epub] CrossRef
The Current Status of Hyperthyroidism in Korea
Hyemi Kwon
Endocrinology and Metabolism.2023; 38(4): 392. 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

Review Articles

Calcium & bone metabolism
Skeletal Senescence with Aging and Type 2 Diabetes: Joshua Nicholas Farr; Endocrinol Metab. 2023;38(3):295-301. Published online June 14, 2023; DOI: https://doi.org/10.3803/EnM.2023.1727

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Osteoporosis and type 2 diabetes (T2D) are common diseases that often coexist. While both of these diseases are associated with poor bone quality and increased fracture risk, their pathogenesis of increased fracture risk differs and is multifactorial. Mounting evidence now indicates that key fundamental mechanisms that are central to both aging and energy metabolism exist. Importantly, these mechanisms represent potentially modifiable therapeutic targets for interventions that could prevent or alleviate multiple complications of osteoporosis and T2D, including poor bone quality. One such mechanism that has gained increasing momentum is senescence, which is a cell fate that contributes to multiple chronic diseases. Accumulating evidence has established that numerous boneresident cell types become susceptible to cellular senescence with old age. Recent work also demonstrates that T2D causes the premature accumulation of senescent osteocytes during young adulthood, at least in mice, although it remains to be seen which other bone-resident cell types become senescent with T2D. Given that therapeutically removing senescent cells can alleviate age-related bone loss and T2D-induced metabolic dysfunction, it will be important in future studies to rigorously test whether interventions that eliminate senescent cells can also alleviate skeletal dysfunction in context of T2D, as it does with aging.

Citations

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Single-cell sequencing reveals an important role of SPP1 and microglial activation in age-related macular degeneration
Shizhen Lei, Mang Hu, Zhongtao Wei
Frontiers in Cellular Neuroscience.2024;[Epub] CrossRef
The synergistic effect of diabetes mellitus and osteoporosis on the all-cause mortality: a cohort study of an American population
Weihua Li, Siyu Xie, Shengdong Zhong, Liting Lan
Frontiers in Endocrinology.2024;[Epub] CrossRef
Identification of systemic biomarkers and potential drug targets for age-related macular degeneration
Shizhen Lei, Mang Hu, Zhongtao Wei
Frontiers in Aging Neuroscience.2024;[Epub] CrossRef

Thyroid
Diagnosis and Management of Thyroid Disease during Pregnancy and Postpartum: 2023 Revised Korean Thyroid Association Guidelines: Hwa Young Ahn, Ka Hee Yi; Endocrinol Metab. 2023;38(3):289-294. Published online June 9, 2023; DOI: https://doi.org/10.3803/EnM.2023.1696

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Thyroid hormone plays a critical role in fetal growth and development, and thyroid dysfunction during pregnancy is associated with several adverse outcomes, such as miscarriage and preterm birth. In this review, we introduce and explain three major changes in the revised Korean Thyroid Association (KTA) guidelines for the diagnosis and management of thyroid disease during pregnancy: first, the normal range of thyroid-stimulating hormone (TSH) during pregnancy; second, the treatment of subclinical hypothyroidism; and third, the management of euthyroid pregnant women with positive thyroid autoantibodies. The revised KTA guidelines adopt 4.0 mIU/L as the upper limit of TSH in the first trimester. A TSH level between 4.0 and 10.0 mIU/L, combined with free thyroxine (T4) within the normal range, is defined as subclinical hypothyroidism, and a TSH level over 10 mIU/L is defined as overt hypothyroidism regardless of the free T4 level. Levothyroxine treatment is recommended when the TSH level is higher than 4 mIU/L in subclinical hypothyroidism, regardless of thyroid peroxidase antibody positivity. However, thyroid hormone therapy to prevent miscarriage is not recommended in thyroid autoantibody-positive women with normal thyroid function.

Citations

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Use of thyroid hormones in hypothyroid and euthyroid patients: A survey of members of the Endocrine Society of Australia
Nicole Lafontaine, Suzanne J. Brown, Petros Perros, Enrico Papini, Endre V. Nagy, Roberto Attanasio, Laszlo Hegedüs, John P. Walsh
Clinical Endocrinology.2024; 100(5): 477. CrossRef
Management of Subclinical Hypothyroidism: A Focus on Proven Health Effects in the 2023 Korean Thyroid Association Guidelines
Eu Jeong Ku, Won Sang Yoo, Hyun Kyung Chung
Endocrinology and Metabolism.2023; 38(4): 381. CrossRef
Maternal isolated hypothyroxinemia in the first trimester is not associated with adverse pregnancy outcomes, except for macrosomia: a prospective cohort study in China
Jing Du, Linong Ji, Xiaomei Zhang, Ning Yuan, Jianbin Sun, Dan Zhao
Frontiers in Endocrinology.2023;[Epub] CrossRef

Original Article

Diabetes, obesity and metabolism
Effects of Weight Loss and Interaction with Physical Activity on Risks of Cardiovascular Outcomes in Individuals with Type 2 Diabetes: Claudia R. L. Cardoso, Nathalie C. Leite, Gil F. Salles; Endocrinol Metab. 2023;38(3):305-314. Published online May 31, 2023; DOI: https://doi.org/10.3803/EnM.2023.1690

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Background
This study investigated the effects of weight loss during follow-up on cardiovascular outcomes in a type 2 diabetes cohort and tested interactions with clinical and laboratory variables, particularly physical activity, that could impact the associations.
Methods
Relative weight changes were assessed in 651 individuals with type 2 diabetes and categorized as ≥5% loss, <5% loss, or gain. Associations between weight loss categories and incident cardiovascular outcomes (total cardiovascular events [CVEs], major adverse cardiovascular events [MACEs], and cardiovascular mortality) were assessed using multivariable Cox regression with interaction analyses.
Results
During the initial 2 years, 125 individuals (19.2%) lost ≥5% of their weight, 180 (27.6%) lost <5%, and 346 (53.1%) gained weight. Over a median additional follow-up of 9.3 years, 188 patients had CVEs (150 MACEs) and 106 patients died from cardiovascular causes. Patients with ≥5% weight loss had a significantly lower risk of total CVEs (hazard ratio [HR], 0.52; 95% confidence interval, 0.33 to 0.89; P=0.011) than those who gained weight, but non-significant lower risks of MACEs or cardiovascular deaths. Patients with <5% weight loss had risks similar to those with weight gain. There were interactions between weight loss and physical activity. In active individuals, ≥5% weight loss was associated with significantly lower risks for total CVEs (HR, 0.20; P=0.004) and MACEs (HR, 0.21; P=0.010), whereas in sedentary individuals, no cardiovascular protective effect of weight loss was evidenced.
Conclusion
Weight loss ≥5% may be beneficial for cardiovascular disease prevention, particularly when achieved with regular physical activity, even in high-risk individuals with long-standing type 2 diabetes.

Citations

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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
Cardiovascular Risk Reduction in Type 2 Diabetes: Further Insights into the Power of Weight Loss and Exercise
Seung-Hwan Lee
Endocrinology and Metabolism.2023; 38(3): 302. CrossRef
Effects of body weight variability on risks of macro- and microvascular outcomes in individuals with type 2 diabetes: The Rio de Janeiro type 2 diabetes cohort
Claudia R.L. Cardoso, Nathalie C. Leite, Gil F. Salles
Diabetes Research and Clinical Practice.2023; 205: 110992. CrossRef

Review Articles

Thyroid
Evaluation and Management of Bone Health in Patients with Thyroid Diseases: A Position Statement of the Korean Thyroid Association: A Ram Hong, Ho-Cheol Kang; Endocrinol Metab. 2023;38(2):175-189. Published online April 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1701

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Thyroid hormones play an important physiological role in maintaining adult bone structure and strength. Consequently, thyroid dysfunction is related to skeletal outcomes. Overt hyperthyroidism is an established cause of high bone turnover with accelerated bone loss, leading to osteoporosis and increased fracture risk. Hyperthyroidism induced by thyroid-stimulating hormone-suppressive therapy in patients with differentiated thyroid cancer is a cause of secondary osteoporosis. In contrast, there is a lack of evidence on the negative impact of hypothyroidism on bone health. Considering the clinical updates on the importance of bone health in thyroid dysfunction, the Task Force from the Clinical Practice Guidelines Development Committee of the Korean Thyroid Association recently developed a position statement on the evaluation and management of bone health of patients with thyroid diseases, particularly focused on endogenous hyperthyroidism and thyroid-stimulating hormone-suppressive therapy-associated hyperthyroidism in patients with differentiated thyroid cancer. Herein, we review the Korean Thyroid Association’s position statement on the evaluation and management of bone health associated with thyroid diseases.

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Diagnosis and therapeutic approach to bone health in patients with hypopituitarism
Justyna Kuliczkowska-Płaksej, Aleksandra Zdrojowy-Wełna, Aleksandra Jawiarczyk-Przybyłowska, Łukasz Gojny, Marek Bolanowski
Reviews in Endocrine and Metabolic Disorders.2024;[Epub] CrossRef
Osteoporosis, Osteoarthritis, and Subchondral Insufficiency Fracture: Recent Insights
Shunichi Yokota, Hotaka Ishizu, Takuji Miyazaki, Daisuke Takahashi, Norimasa Iwasaki, Tomohiro Shimizu
Biomedicines.2024; 12(4): 843. CrossRef
Review on the protective activity of osthole against the pathogenesis of osteoporosis
Jincai Chen, Xiaofei Liao, Juwen Gan
Frontiers in Pharmacology.2023;[Epub] CrossRef

Calcium & bone metabolism
New Insights into Calorie Restriction Induced Bone Loss: Linyi Liu, Clifford J. Rosen; Endocrinol Metab. 2023;38(2):203-213. Published online April 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1673

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Caloric restriction (CR) is now a popular lifestyle choice due to its ability in experimental animals to improve lifespan, reduce body weight, and lessen oxidative stress. However, more and more emerging evidence suggests this treatment requires careful consideration because of its detrimental effects on the skeletal system. Experimental and clinical studies show that CR can suppress bone growth and raise the risk of fracture, but the specific mechanisms are poorly understood. Reduced mechanical loading has long been thought to be the primary cause of weight loss-induced bone loss from calorie restriction. Despite fat loss in peripheral depots with calorie restriction, bone marrow adipose tissue (BMAT) increases, and this may play a significant role in this pathological process. Here, we update recent advances in our understanding of the effects of CR on the skeleton, the possible pathogenic role of BMAT in CR-induced bone loss, and some strategies to mitigate any potential side effects on the skeletal system.

Citations

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Obesity, diabetes and risk of bone fragility: How BMAT behavior is affected by metabolic disturbances and its influence on bone health
Gregório Corrêa Guimarães, João Bosco Costa Coelho, João Gabriel Oliveira Silva, Ana Carolina Chalfun de Sant’Ana, Cássia Alves Carrilho de Sá, Júlia Marques Moreno, Lívia Marçal Reis, Camila Souza de Oliveira Guimarães
Osteoporosis International.2024; 35(4): 575. CrossRef
Bone Marrow Adipose Tissue Is Not Required for Reconstitution of the Immune System Following Irradiation in Male Mice
Jessica A. Keune, Carmen P. Wong, Adam J. Branscum, Scott A. Menn, Urszula T. Iwaniec, Russell T. Turner
International Journal of Molecular Sciences.2024; 25(4): 1980. CrossRef
Dietary restriction plus exercise change gene expression of Cxcl12 abundant reticular cells in female mice
Aoi Ikedo, Yuuki Imai
Journal of Bone and Mineral Metabolism.2024;[Epub] CrossRef

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