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대한내분비학회> Endocrinology and Metabolism(구 대한내분비학회지)> COVID-19 Vaccination for Endocrine Patients: A Position Statement from the Korean Endocrine Society

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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
  • : 대한내분비학회
  • : Endocrinology and Metabolism(구 대한내분비학회지) 36권4호
  • : 연속간행물
  • : 2021년 08월
  • : 757-765(9pages)
Endocrinology and Metabolism(구 대한내분비학회지)

DOI


목차

INTRODUCTION
ADRENAL DISEASE
DIABETES MELLITUS
OSTEOPOROSIS
THYROID DISEASE
HYPOGONADISM
PITUITARY DISEASE
CONCISE SUMMARY
CONCLUSIONS
CONFLICTS OF INTEREST
ORCID
REFERENCES

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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.

UCI(KEPA)

I410-ECN-0102-2022-500-000793056

간행물정보

  • : 의약학분야  > 내과학
  • : KCI등재
  • : SCOPUS
  • : 격월
  • : 2093-596X
  • : 2093-5978
  • : 학술지
  • : 연속간행물
  • : 1986-2022
  • : 2646


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1A Key Metabolic Regulator of Bone and Cartilage Health

저자 : Elizabeth Pérez-hernández , Jesús Javier Pastrana-carballo , Fernando Gómez-chávez , Ramesh C. Gupta , Nury Pérez-hernández

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 559-574 (16 pages)

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Taurine, a cysteine-derived zwitterionic sulfonic acid, is a common ingredient in energy drinks and is naturally found in fish and other seafood. In humans, taurine is produced mainly in the liver, and it can also be obtained from food. In target tissues, such as the retina, heart, and skeletal muscle, it functions as an essential antioxidant, osmolyte, and antiapoptotic agent. Taurine is also involved in energy metabolism and calcium homeostasis. Taurine plays a considerable role in bone growth and development, and high-profile reports have demonstrated the importance of its metabolism for bone health. However, these reports have not been collated for more than 10 years. Therefore, this review focuses on taurine-bone interactions and covers recently discovered aspects of taurine's effects on osteoblastogenesis, osteoclastogenesis, bone structure, and bone pathologies (e.g., osteoporosis and fracture healing), with due attention to the taurine-cartilage relationship.

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2Lipoprotein Lipase: Is It a Magic Target for the Treatment of Hypertriglyceridemia

저자 : Joon Ho Moon , Kyuho Kim , Sung Hee Choi

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 575-586 (12 pages)

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High levels of triglycerides (TG) and triglyceride-rich lipoproteins (TGRLs) confer a residual risk of cardiovascular disease after optimal low-density lipoprotein cholesterol (LDL-C)-lowering therapy. Consensus has been made that LDL-C is a non-arguable primary target for lipid lowering treatment, but the optimization of TGRL for reducing the remnant risk of cardiovascular diseases is urged. Omega-3 fatty acids and fibrates are used to reduce TG levels, but many patients still have high TG and TGRL levels combined with low high-density lipoprotein concentration that need to be ideally treated. Lipoprotein lipase (LPL) is a key regulator for TGs that hydrolyzes TGs to glycerol and free fatty acids in lipoprotein particles for lipid storage and consumption in peripheral organs. A deeper understanding of human genetics has enabled the identification of proteins regulating the LPL activity, which include the apolipoproteins and angiopoietin-like families. Novel therapeutic approach such as antisense oligonucleotides and monoclonal antibodies that regulate TGs have been developed in recent decades. In this article, we focus on the biology of LPL and its modulators and review recent clinical application, including genetic studies and clinical trials of novel therapeutics. Optimization of LPL activity to lower TG levels could eventually reduce incident atherosclerotic cardiovascular disease in conjunction with successful LDL-C reduction.

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3Long-Term Outcomes of Congenital Adrenal Hyperplasia

저자 : Anna Nordenström , Svetlana Lajic , Henrik Falhammar

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 587-598 (12 pages)

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A plethora of negative long-term outcomes have been associated with congenital adrenal hyperplasia (CAH). The causes are multiple and involve supra-physiological gluco- and mineralocorticoid replacement, excess adrenal androgens both intrauterine and postnatal, elevated steroid precursor and adrenocorticotropic hormone levels, living with a congenital condition as well as the proximity of the cytochrome P450 family 21 subfamily A member 2 (CYP21A2) gene to other genes. This review aims to discuss the different long-term outcomes of CAH.

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4Clinical and Technical Aspects in Free Cortisol Measurement

저자 : Man Ho Choi

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 599-607 (9 pages)

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Accurate measurement of cortisol is critical in adrenal insufficiency as it reduces the risk associated with misdiagnosis and supports the optimization of stress dose. Comprehensive assays have been developed to determine the levels of bioactive free cortisol and their clinical and analytical efficacies have been extensively discussed because the level of total cortisol is affected by changes in the structure or circulating levels of corticoid-binding globulin and albumin, which are the main reservoirs of cortisol in the human body. Antibody-based immunoassays are routinely used in clinical laboratories; however, the lack of molecular specificity in cortisol assessment limits their applicability to characterize adrenocortical function. Improved specificity and sensitivity can be achieved by mass spectrometry coupled with chromatographic separation methods, which is a cutting-edge technology to measure individual as well as a panel of steroids in a single analytical run. The purpose of this review is to introduce recent advances in free cortisol measurement from the perspectives of clinical specimens and issues associated with prospective analytical technologies.

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5Advances in Pituitary Surgery

저자 : Yoon Hwan Byun , Ho Kang , Yong Hwy Kim

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 608-616 (9 pages)

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Pituitary surgery has advanced considerably in recent years with the exploration and development of various endoscopic approaches and techniques. Different endoscopic skull base approaches are being applied to access sellar tumors in different locations. Moreover, extracapsular dissection and cavernous sinus exploration have enabled gross total resection of sellar tumors where it could not have been achieved in the past. Techniques for skull base reconstruction have also progressed, allowing surgeons to remove larger and more complicated tumors than before. This review article discusses different endoscopic skull base approaches, surgical techniques for removing pituitary adenomas, and reconstruction methods for repairing postoperative low-flow and high-flow cerebrospinal fluid leakage.

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6A Meaningful Journey to Predict Fractures with Deep Learning

저자 : Jeonghoon Ha

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 617-619 (3 pages)

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7The Effects of Irisin on the Interaction between Hepatic Stellate Cell and Macrophage in Liver Fibrosis

저자 : Dinh Vinh Do , So Young Park , Giang Thi Nguyen , Dae Hee Choi , Eun-hee Cho

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 620-630 (11 pages)

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Background: Hepatic stellate cells (HSCs) are the central players interacting with multiple cell types in liver fibrosis. The crosstalk between HSCs and macrophages has recently become clearer. Irisin, an exercise-responsive myokine, was known to have a potentially protective role in liver and renal fibrosis, especially in connection with stellate cells. This study investigated the effects of irisin on the interaction between HSCs and macrophages.
Methods: Tamm-Horsfall protein-1 (THP-1) human monocytes were differentiated into macrophages, polarized into the inflammatory M1 phenotype with lipopolysaccharide. Lieming Xu-2 (LX-2) cells, human HSCs, were treated with conditioned media (CM) from M1 macrophages, with or without recombinant irisin. HSCs responses to CM from M1 macrophages were evaluated regarding activation, proliferation, wound healing, trans-well migration, contractility, and related signaling pathway.
Results: CM from M1 macrophages significantly promoted HSC proliferation, wound healing, transwell migration, and contractility, but not activation of HSCs. Irisin co-treatment attenuated these responses of HSCs to CM. However, CM and irisin treatment did not induce any changes in HSC activation. Further, irisin co-treatment alleviated CM-induced increase of phopho-protein kinase B (pAKT), matrix metalloproteinase-9 (MMP-9), and tissue inhibitor of metalloproteinases-1 (TIMP-1).
Conclusion: These findings suggested that irisin may play a protective role in the pathogenesis of liver fibrosis, especially when working in the crosstalk between HSCs and macrophages.

KCI등재 SCOPUS

8High Cardiorespiratory Fitness Protects against Molecular Impairments of Metabolism, Heart, and Brain with Higher Efficacy in Obesity-Induced Premature Aging

저자 : Patcharapong Pantiya , Chanisa Thonusin , Natticha Sumneang , Benjamin Ongnok , Titikorn Chunchai , Sasiwan Kerdphoo , Thidarat Jaiwongkam , Busarin Arunsak , Natthaphat Siri-angkul , Sirawit Sriwichaiin , Nipon Ch

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 630-660 (31 pages)

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Background: High cardiorespiratory fitness (CRF) protects against age-related diseases. However, the mechanisms mediating the protective effect of high intrinsic CRF against metabolic, cardiac, and brain impairments in non-obese versus obese conditions remain incompletely understood. We aimed to identify the mechanisms through which high intrinsic CRF protects against metabolic, cardiac, and brain impairments in non-obese versus obese untrained rats.
Methods: Seven-week-old male Wistar rats were divided into two groups (n=8 per group) to receive either a normal diet or a high-fat diet (HFD). At weeks 12 and 28, CRF, carbohydrate and fatty acid oxidation, cardiac function, and metabolic parameters were evaluated. At week 28, behavior tests were performed. At the end of week 28, rats were euthanized to collect heart and brain samples for molecular studies.
Results: The obese rats exhibited higher values for aging-related parameters than the non-obese rats, indicating that they experienced obesity-induced premature aging. High baseline CRF levels were positively correlated with several favorable metabolic, cardiac, and brain parameters at follow-up. Specifically, the protective effects of high CRF against metabolic, cardiac, and brain impairments were mediated by the modulation of body weight and composition, the lipid profile, substrate oxidation, mitochondrial function, insulin signaling, autophagy, apoptosis, inflammation, oxidative stress, cardiac function, neurogenesis, blood-brain barrier, synaptic function, accumulation of Alzheimer's disease-related proteins, and cognition. Interestingly, this effect was more obvious in HFD-fed rats.
Conclusion: The protective effect of high CRF is mediated by the modulation of several mechanisms. These effects exhibit greater efficacy under conditions of obesity-induced premature aging.

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9Characteristics of Glycemic Control and Long-Term Complications in Patients with Young-Onset Type 2 Diabetes

저자 : Han-sang Baek , Ji-yeon Park , Jin Yu , Joonyub Lee , Yeoree Yang , Jeonghoon Ha , Seung Hwan Lee , Jae Hyoung Cho , Dong-jun Lim , Hun-sung Kim

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 641-651 (11 pages)

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Background: The prevalence of young-onset diabetes (YOD) has been increasing worldwide. As the incidence of YOD increases, it is necessary to determine the characteristics of YOD and the factors that influence its development and associated complications.
Methods: In this retrospective study, we recruited patients who were diagnosed with type 2 diabetes mellitus between June 2001 and December 2021 at a tertiary hospital. The study population was categorized according to age: YOD (age <40 years), middle-age-onset diabetes (MOD, 40≤ age <65 years), and late-onset diabetes (LOD, age ≥65 years). We examined trends in glycemic control by analyzing fasting glucose levels during the first year in each age group. A Cox proportional-hazards model was used to determine the relative risk of developing complications according to glycemic control trends.
Results: The fasting glucose level at the time of diagnosis was highest in the YOD group (YOD 149±65 mg/dL; MOD 143±54 mg/dL; and LOD 140±55 mg/dL; P=0.009). In the YOD group, glucose levels decreased at 3 months, but increased by 12 months. YOD patients and those with poor glycemic control in the first year were at a higher risk of developing complications, whereas the risk in patients with LOD was not statistically significant.
Conclusion: YOD patients had higher glucose levels at diagnosis, and their glycemic control was poorly maintained. As poor glycemic control can influence the development of complications, especially in young patients, intensive treatment is necessary for patients with YOD.

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10Frequency of TERT Promoter Mutations in Real-World Analysis of 2,092 Thyroid Carcinoma Patients

저자 : Heera Yang , Hyunju Park , Hyun Jin Ryu , Jung Heo , Jung-sun Kim , Young Lyun Oh , Jun-ho Choe , Jung Han Kim , Jee Soo Kim , Hye Won Jang , Tae Hyuk Kim , Sun Wook Kim , Jae Hoon Chung

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 37권 4호 발행 연도 : 2022 페이지 : pp. 652-669 (18 pages)

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Background: Telomerase reverse transcriptase (TERT) promoter mutations are associated with increased recurrence and mortality in patients with thyroid carcinoma. Previous studies on TERT promoter mutations were retrospectively conducted on a limited number of patients.
Methods: We prospectively collected data on all consecutive patients who underwent thyroid carcinoma surgery between January 2019 and December 2020 at the Samsung Medical Center, Seoul, Korea. We included 2,092 patients with thyroid carcinoma.
Results: Of 2,092 patients, 72 patients (3.4%) had TERT promoter mutations. However, the frequency of TERT promoter mutations was 0.5% in papillary thyroid microcarcinoma (PTMC) ≤1 cm and it was 5.8% in papillary thyroid carcinoma (PTC) >1 cm. The frequency of TERT promoter mutations was significantly associated with older age at diagnosis (odds ratio [OR], 1.12; P<0.001), larger primary tumor size (OR, 2.02; P<0.001), and aggressive histological type (OR, 7.78 in follicular thyroid carcinoma; OR, 10.33 in poorly differentiated thyroid carcinoma; OR, 45.92 in anaplastic thyroid carcinoma; P<0.001). Advanced T stage, advanced N stage, and distant metastasis at diagnosis were highly prevalent in mutated thyroid cancers. However, initial distant metastasis was not present in patients with TERT promoter mutations in PTMC. Although the C228T mutation was more highly detected than the C250T mutation (64 cases vs. 7 cases), there were no significant clinicopathological differences.
Conclusion: This study is the first attempt to investigate the frequency of TERT promoter mutations in a real-world setting. The frequency of TERT promoter mutations in PTC was lower than expected, and in PTMC, young patients, and female patients, the frequency was very low.

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1The Role of Thyroid Hormone in the Regulation of Cerebellar Development

저자 : Sumiyasu Ishii , Izuki Amano , Noriyuki Koibuchi

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 703-716 (14 pages)

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The proper organized expression of specific genes in time and space is responsible for the organogenesis of the central nervous system including the cerebellum. The epigenetic regulation of gene expression is tightly regulated by an intrinsic intracellular genetic program, local stimuli such as synaptic inputs and trophic factors, and peripheral stimuli from outside of the brain including hormones. Some hormone receptors are expressed in the cerebellum. Thyroid hormones (THs), among numerous circulating hormones, are well-known major regulators of cerebellar development. In both rodents and human, hypothyroidism during the postnatal developmental period results in abnormal morphogenesis or altered function. THs bind to the thyroid hormone receptors (TRs) in the nuclei and with the help of transcriptional cofactors regulate the transcription of target genes. Gene regulation by TR induces cell proliferation, migration, and differentiation, which are necessary for brain development and plasticity. Thus, the lack of TH action mediators may directly cause aberrant cerebellar development. Various kinds of animal models have been established in a bid to study the mechanism of TH action in the cerebellum. Interestingly, the phenotypes differ greatly depending on the models. Herein we summarize the actions of TH and TR particularly in the developing cerebellum.

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2Active Surveillance as an Effective Management Option for Low-Risk Papillary Thyroid Microcarcinoma

저자 : Min Ji Jeon , Won Gu Kim , Tae Yong Kim , Young Kee Shong , Won Bae Kim

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 717-724 (8 pages)

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Active surveillance (AS) for low-risk papillary thyroid microcarcinoma (PTMC) has been accepted worldwide as safe and effective. Despite the growing acceptance of AS in the management of low-risk PTMCs, there are barriers to AS in real clinical settings, and it is important to understand and establish appropriate AS protocol from initial evaluation to follow-up. PTMC management strategies should be decided upon after careful consideration of patient and tumor characteristics by a multidisciplinary team of thyroid cancer specialists. Patients should understand the risks and benefits of AS, participate in decision-making and follow structured monitoring strategies. In this review, we discuss clinical outcomes of AS from previous studies, optimal indications and follow-up strategies for AS, and unresolved questions about AS.

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3The Concept of Economic Evaluation and Its Application in Thyroid Cancer Research

저자 : Kyungsik Kim , Mijin Kim , Woojin Lim , Bo Hyun Kim , Sue K. Park

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 725-736 (12 pages)

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Economic evaluation is a type of comparative analysis between interventions in terms of both their resource use and health outcomes. Due to the good prognosis of thyroid cancer (TC), the socioeconomic burden of TC patients post-diagnosis is increasing. Therefore, economic evaluation studies focusing on TC are recommended. This study aimed to describe the concept and methods of economic evaluation and reviewed previous TC studies. Several previous studies compared the costs of interventions or evaluated recurrence, complications, or quality of life as measures of their effectiveness. Regarding costs, most studies focused on direct costs and applied hypothetical models. Cost-minimization analysis should be distinguished from simple cost analysis. Furthermore, due to the universality of the term “cost-effectiveness analysis” (CEA), several studies have not distinguished CEA from cost-utility analysis; this point needs to be considered in future research. Cost-benefit analyses have not been conducted in previous TC research. Since TC has a high survival rate and good prognosis, the need for economic evaluations has recently been pointed out. Therefore, correct concepts and methods are needed to obtain clear economic evaluation results. On this basis, it will be possible to provide appropriate guidelines for TC treatment and management in the future.

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4Exercise/Resistance Training and Muscle Stem Cells

저자 : So-ichiro Fukada , Ayasa Nakamura

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 737-744 (8 pages)

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Skeletal muscle has attracted attention as endocrine organ, because exercise-dependent cytokines called myokines/exerkines are released from skeletal muscle and are involved in systemic functions. While, local mechanical loading to skeletal muscle by exercise or resistance training alters myofiber type and size and myonuclear number. Skeletal muscle-resident stem cells, known as muscle satellite cells (MuSCs), are responsible for the increased number of myonuclei. Under steady conditions, MuSCs are maintained in a mitotically quiescent state but exit from that state and start to proliferate in response to high physical activity. Alterations in MuSC behavior occur when myofibers are damaged, but the lethal damage to myofibers does not seem to evoke mechanical loading-dependent MuSC activation and proliferation. Given that MuSCs proliferate without damage, it is unclear how the different behaviors of MuSCs are controlled by different physical activities. Recent studies demonstrated that myonuclear number reflects the size of myofibers; hence, it is crucial to know the properties of MuSCs and the mechanism of myonuclear accretion by MuSCs. In addition, the elucidation of mechanical load-dependent changes in muscle resident cells, including MuSCs, will be necessary for the discovery of new myokines/exerkines and understating skeletal muscle diseases.

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5Effects of Intermittent Fasting on the Circulating Levels and Circadian Rhythms of Hormones

저자 : Bo Hye Kim , Yena Joo , Min-seon Kim , Han Kyoung Choe , Qingchun Tong , Obin Kwon

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 745-756 (12 pages)

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Intermittent fasting has become an increasingly popular strategy in losing weight and associated reduction in obesity-related medical complications. Overwhelming studies support metabolic improvements from intermittent fasting in blood glucose levels, cardiac and brain function, and other health benefits, in addition to weight loss. However, concerns have also been raised on side effects including muscle loss, ketosis, and electrolyte imbalance. Of particular concern, the effect of intermittent fasting on hormonal circadian rhythms has received little attention. Given the known importance of circadian hormonal changes to normal physiology, potential detrimental effects by dysregulation of hormonal changes deserve careful discussions. In this review, we describe the changes in circadian rhythms of hormones caused by intermittent fasting. We covered major hormones commonly pathophysiologically involved in clinical endocrinology, including insulin, thyroid hormones, and glucocorticoids. Given that intermittent fasting could alter both the level and frequency of hormone secretion, decisions on practicing intermittent fasting should take more considerations on potential detrimental consequences versus beneficial effects pertaining to individual health conditions.

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6COVID-19 Vaccination for Endocrine Patients: A Position Statement from the Korean Endocrine Society

저자 : 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 Ki

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 757-765 (9 pages)

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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.

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7Higher Weight Variability Could Bring You a Fatty Liver

저자 : Yeoree Yang , Jae-hyoung Cho

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 766-768 (3 pages)

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8Thyroid Hormone Profile and Its Prognostic Impact on the Coronavirus Disease 2019 in Korean Patients

저자 : Jiyeon Ahn , Min Kyung Lee , Jae Hyuk Lee , Seo Young Sohn

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 769-777 (9 pages)

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Background: Data on the association between coronavirus disease 2019 (COVID-19) and thyroid have been reported, including overt thyrotoxicosis and suppression of thyroid function. We aimed to evaluate the thyroid hormone profile and its association with the prognosis of COVID-19 in Korean patients.
Methods: The clinical data of 119 patients with COVID-19, admitted in the Myongji Hospital, Goyang, South Korea, were retrospectively evaluated. The thyroid hormone profiles were analyzed and compared based on disease severity (non-severe disease vs. severe to critical disease). Clinical outcomes were analyzed according to the tertiles of thyroid hormones.
Results: Of the 119 patients, 76 (63.9%) were euthyroid, and none presented with overt thyroid dysfunction. Non-thyroidal illness syndrome was the most common manifestation (18.5%), followed by subclinical thyrotoxicosis (14.3%) among patients with thyroid dysfunction. Thyroid stimulating hormone (TSH) and triiodothyronine (T3) levels were significantly lower in patients with severe to critical disease than in those with non-severe disease (P<0.05). Patients in the lowest T3 tertile (< 0.77 ng/mL) had higher rates of mechanical ventilation, intensive care unit admission, and death than those in the middle and highest ( >1.00 ng/mL) T3 tertiles (P<0.05). COVID-19 patients in the lowest T3 tertile were independently associated with mortality (hazard ratio, 5.27; 95% confidence interval, 1.09 to 25.32; P=0.038) compared with those in the highest T3 tertile.
Conclusion: Thyroid dysfunction is common in COVID-19 patients. Changes in serum TSH and T3 levels may be important markers of disease severity in COVID-19. Decreased T3 levels may have a prognostic significance in COVID-19 related outcome.

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9The Positive Association between Subclinical Hypothyroidism and Newly-Diagnosed Hypertension Is More Explicit in Female Individuals Younger than 65

저자 : Xichang Wang , Haoyu Wang , Li Yan , Lihui Yang , Yuanming Xue , Jing Yang , Yongli Yao , Xulei Tang , Nanwei Tong , Guixia Wang , Jinan Zhang , Youmin Wang , Jianming Ba , Bing Chen , Jianling Du

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 778-789 (12 pages)

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Background: Subclinical hypothyroidism (SCH) is the most common thyroid dysfunction, and its relationship with blood pressure (BP) has been controversial. The aim of the study was to analyze the association between SCH and newly-diagnosed hypertension.
Methods: Based on data from the Thyroid disease, Iodine nutrition and Diabetes Epidemiology (TIDE) study, 49,433 euthyroid individuals and 7,719 SCH patients aged ≥18 years were enrolled. Patients with a history of hypertension or thyroid disease were excluded. SCH was determined by manufacturer reference range. Overall hypertension and stage 1 and 2 hypertension were diagnosed according to the guidelines issued by the American College of Cardiology/American Heart Association in 2017.
Results: The prevalence of overall hypertension (48.7%), including stage 1 (28.9%) and 2 (19.8%) hypertension, increased significantly in SCH patients compared with euthyroid subjects. With elevated serum thyroid stimulating hormone (TSH) level, the hyper-tension prevalence also increased significantly from the euthyroid to different SCH subgroups, which was more profound in females or subjects aged <65 years. The age- and sex-specific regression analysis further demonstrated the same trends in the general population and in the 1:1 propensity matched population. Similarly, several BP components (i.e., systolic, diastolic, and mean arterial BP) were positively associated with TSH elevation, and regression analysis also confirmed that all BP components were closely related with SCH in female subjects aged <65 years.
Conclusion: The prevalence of hypertension increases for patients with SCH. SCH tends to be associated with hypertension and BP components in females younger than 65 years.

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10Association between Iodine Intake, Thyroid Function, and Papillary Thyroid Cancer: A Case-Control Study

저자 : Kyungsik Kim , Sun Wook Cho , Young Joo Park , Kyu Eun Lee , Dong-wook Lee , Sue K. Park

발행기관 : 대한내분비학회 간행물 : Endocrinology and Metabolism(구 대한내분비학회지) 36권 4호 발행 연도 : 2021 페이지 : pp. 790-799 (10 pages)

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Background: This study aimed to assess the effects of iodine intake, thyroid function, and their combined effect on the risk of papillary thyroid cancer (PTC) and papillary thyroid microcarcinoma (PTMC).
Methods: A case-control study was conducted including 500 community-based controls who had undergone a health check-up, and 446 overall PTC cases (209 PTC and 237 PTMC) from the Thyroid Cancer Longitudinal Study. Urinary iodine concentration (UIC), was used as an indicator of iodine intake, and serum for thyroid function. The risk of PTC and PTMC was estimated using unconditional logistic regression.
Results: Excessive iodine intake (UIC ≥220 μg/gCr) was associated with both PTC (odds ratio [OR], 18.13 95% confidence inter-val [CI], 8.87 to 37.04) and PTMC (OR, 8.02; 95% CI, 4.64 to 13.87), compared to adequate iodine intake (UIC, 85 to 219 μg/gCr). Free thyroxine (T4) levels ≥1.25 ng/dL were associated with PTC (OR, 1.97; 95% CI, 1.36 to 2.87) and PTMC (OR, 2.98; 95% CI, 2.01 to 4.41), compared to free T4 levels of 0.7 to 1.24 ng/dL. Individuals with excessive iodine intake and high free T4 levels had a greatly increased OR of PTC (OR, 43.48; 95% CI, 12.63 to 149.62), and PTMC (OR, 26.96; 95% CI, 10.26 to 70.89), compared to individuals with adequate iodine intake and low free T4 levels.
Conclusion: Excessive iodine intake using creatinine-adjusted UIC and high free T4 levels may have a synergistic effect on PTC and PTMC. Considering both iodine intake and thyroid function is important to assess PTC and PTMC risk.

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