Endocrinology and Metabolism

Original Articles

Diabetes, obesity and metabolism
Efficacy of Gemigliptin Add-on to Dapagliflozin and Metformin in Type 2 Diabetes Patients: A Randomized, Double-Blind, Placebo-Controlled Study (SOLUTION): Byung Wan Lee, KyungWan Min, Eun-Gyoung Hong, Bon Jeong Ku, Jun Goo Kang, Suk Chon, Won-Young Lee, Mi Kyoung Park, Jae Hyeon Kim, Sang Yong Kim, Keeho Song, Soon Jib Yoo; Endocrinol Metab. 2023;38(3):328-337. Published online June 28, 2023; DOI: https://doi.org/10.3803/EnM.2023.1688

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Abstract PDF Supplementary Material PubReader ePub: Background
This study evaluated the efficacy and safety of add-on gemigliptin in patients with type 2 diabetes mellitus (T2DM) who had inadequate glycemic control with metformin and dapagliflozin.
Methods
In this randomized, placebo-controlled, parallel-group, double-blind, phase III study, 315 patients were randomized to receive either gemigliptin 50 mg (n=159) or placebo (n=156) with metformin and dapagliflozin for 24 weeks. After the 24-week treatment, patients who received the placebo were switched to gemigliptin, and all patients were treated with gemigliptin for an additional 28 weeks.
Results
The baseline characteristics were similar between the two groups, except for body mass index. At week 24, the least squares mean difference (standard error) in hemoglobin A1c (HbA1c) changes was –0.66% (0.07) with a 95% confidence interval of –0.80% to –0.52%, demonstrating superior HbA1c reduction in the gemigliptin group. After week 24, the HbA1c level significantly decreased in the placebo group as gemigliptin was administered, whereas the efficacy of HbA1c reduction was maintained up to week 52 in the gemigliptin group. The safety profiles were similar: the incidence rates of treatment-emergent adverse events up to week 24 were 27.67% and 29.22% in the gemigliptin and placebo groups, respectively. The safety profiles after week 24 were similar to those up to week 24 in both groups, and no new safety findings, including hypoglycemia, were noted.
Conclusion
Add-on gemigliptin was well tolerated, providing comparable safety profiles and superior efficacy in glycemic control over placebo for long-term use in patients with T2DM who had poor glycemic control with metformin and dapagliflozin.

Diabetes, Obesity and Metabolism
Expression of LONP1 Is High in Visceral Adipose Tissue in Obesity, and Is Associated with Glucose and Lipid Metabolism: Ju Hee Lee, Saet-Byel Jung, Seong Eun Lee, Ji Eun Kim, Jung Tae Kim, Yea Eun Kang, Seul Gi Kang, Hyon-Seung Yi, Young Bok Ko, Ki Hwan Lee, Bon Jeong Ku, Minho Shong, Hyun Jin Kim; Endocrinol Metab. 2021;36(3):661-671. Published online June 22, 2021; DOI: https://doi.org/10.3803/EnM.2021.1023

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Background
The nature and role of the mitochondrial stress response in adipose tissue in relation to obesity are not yet known. To determine whether the mitochondrial unfolded protein response (UPR^mt) in adipose tissue is associated with obesity in humans and rodents.
Methods
Visceral adipose tissue (VAT) was obtained from 48 normoglycemic women who underwent surgery. Expression levels of mRNA and proteins were measured for mitochondrial chaperones, intrinsic proteases, and components of electron-transport chains. Furthermore, we systematically analyzed metabolic phenotypes with a large panel of isogenic BXD inbred mouse strains and Genotype-Tissue Expression (GTEx) data.
Results
In VAT, expression of mitochondrial chaperones and intrinsic proteases localized in inner and outer mitochondrial membranes was not associated with body mass index (BMI), except for the Lon protease homolog, mitochondrial, and the corresponding gene LONP1, which showed high-level expression in the VAT of overweight or obese individuals. Expression of LONP1 in VAT positively correlated with BMI. Analysis of the GTEx database revealed that elevation of LONP1 expression is associated with enhancement of genes involved in glucose and lipid metabolism in VAT. Mice with higher Lonp1 expression in adipose tissue had better systemic glucose metabolism than mice with lower Lonp1 expression.
Conclusion
Expression of mitochondrial LONP1, which is involved in the mitochondrial quality control stress response, was elevated in the VAT of obese individuals. In a bioinformatics analysis, high LONP1 expression in VAT was associated with enhanced glucose and lipid metabolism.

Citations

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LONP1 ameliorates liver injury and improves gluconeogenesis dysfunction in acute-on-chronic liver failure
Muchen Wu, Jing Wu, Kai Liu, Minjie Jiang, Fang Xie, Xuehong Yin, Jushan Wu, Qinghua Meng
Chinese Medical Journal.2024; 137(2): 190. CrossRef
Mitochondrial quality control proteases and their modulation for cancer therapy
Jiangnan Zhang, Wenliang Qiao, Youfu Luo
Medicinal Research Reviews.2023; 43(2): 399. CrossRef
Effects of Obesity and Calorie Restriction on Cancer Development
Ekaterina Sergeeva, Tatiana Ruksha, Yulia Fefelova
International Journal of Molecular Sciences.2023; 24(11): 9601. CrossRef
Mitochondrial Dysfunction Associated with mtDNA in Metabolic Syndrome and Obesity
Natalia Todosenko, Olga Khaziakhmatova, Vladimir Malashchenko, Kristina Yurova, Maria Bograya, Maria Beletskaya, Maria Vulf, Natalia Gazatova, Larisa Litvinova
International Journal of Molecular Sciences.2023; 24(15): 12012. CrossRef
Down‐regulation of Lon protease 1 lysine crotonylation aggravates mitochondrial dysfunction in polycystic ovary syndrome
Yuan Xie, Shuwen Chen, Zaixin Guo, Ying Tian, Xinyu Hong, Penghui Feng, Qiu Xie, Qi Yu
MedComm.2023;[Epub] CrossRef
The mitochondrial unfolded protein response: A multitasking giant in the fight against human diseases
Zixin Zhou, Yumei Fan, Ruikai Zong, Ke Tan
Ageing Research Reviews.2022; 81: 101702. CrossRef

Clinical Study
Comparison of the Efficacy and Safety of Insulin Detemir Administered Once Daily According to Two Titration Algorithms (3-0-3 and 2-4-6-8) in Patients with Type 2 Diabetes Mellitus: Hea Min Yu, Kang Seo Park, Jun Hwa Hong, Keun Yong Park, Jong Min Lee, Bon Jeong Ku, Yeo Joo Kim, Tae Kun Oh; Endocrinol Metab. 2020;35(1):142-148. Published online March 19, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.1.142

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Background

This study was conducted to compare glycaemic control with insulin detemir administered according to two titration algorithms (3-0-3 and 2-4-6-8) after 20 weeks of treatment in subjects with type 2 diabetes mellitus inadequately controlled on metformin.

Methods

This was a 20-week, randomised, multicentre, open-labelled, treat-to-target trial. Forty-six patients were randomised in a 1:1 manner to either the 3-0-3 (G3, n=23) or 2-4-6-8 (G2, n=23) algorithm. The primary endpoint was change of haemoglobin A1c (HbA1c), and the secondary safety endpoint included hypoglycaemic events.

Results

After 20 weeks, HbA1c decreased similarly in the G3 and G2 groups, with a mean change of −0.9% from baseline. The mean change in fasting plasma glucose was numerically similar in both groups. The hypoglycaemia event rate per 100-patient-years of exposure (r) in the G2 group (r=1,427) was higher than that in the G3 group (r=807).

Conclusion

Both treatment groups had numerically similar HbA1c reductions. A trend towards fewer hypoglycaemia episodes after dose stabilisation was seen with the simpler G3. Clinically, this may be an important observation, as a simpler titration algorithm may support self-management and maintenance of insulin therapy.

Citations

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Time for Using Machine Learning for Dose Guidance in Titration of People With Type 2 Diabetes? A Systematic Review of Basal Insulin Dose Guidance
Camilla Heisel Nyholm Thomsen, Stine Hangaard, Thomas Kronborg, Peter Vestergaard, Ole Hejlesen, Morten Hasselstrøm Jensen
Journal of Diabetes Science and Technology.2022; : 193229682211459. CrossRef
Efficacy and safety of patient-led versus physician-led titration of basal insulin in patients with uncontrolled type 2 diabetes: a meta-analysis of randomized controlled trials
Marco Castellana, Filippo Procino, Rodolfo Sardone, Pierpaolo Trimboli, Gianluigi Giannelli
BMJ Open Diabetes Research & Care.2020; 8(1): e001477. CrossRef

The Changes of Serum Soluble Intercellular Adhesion Molecule-1(ICAM-1) According to the Clinical Course of Graves' Disease Treated with Antithyroid Drug.: Jin Hong Lee, Jae Kyu Shin, So Young Bak, Bong Soo An, Bon Jeong Ku, Mee Ae Ahn, Jun Sik Jeon, Young Kun Kim, Heung Kyu Ro; J Korean Endocr Soc. 1996;11(3):293-301. Published online November 7, 2019

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Abstract PDF: Background
TSH binding inhibiting imunoglobulins(TBII) are autoimmune antibody causing autoimmune thyroid diseases such as Graves disease or Hashimoto's thyroiditis, while intercellular adhesion molecule-1(ICAM-1) is known as a substance expressed at the site of autoimmune reaction in relation with lymphocyte infiltration. The serum TBII activity is used as an index of the disease course and prognosis of Graves disease treated with antithyroid drugs, propylthiouracil or methimazole. The aim of this study is to understand the change of serum ICAM-1 level according to the change of the degree of autoimmunity and clinical course of Graves disease. Methods: In order to study the change of soluble ICAM-1 and relationship to the immune mechanism of Graves' disease, we measured serum levels of TBII and ICAM-1 in patients(n 35) with Graves disease before and after treatment with antithyroid drugs and in relapsed patients using a highly sensitive ELISA method. Results: The serum levels of TBII and ICAM-1 were markedly elevated in patients with Graves disease before treatment than normal controls and there were good correlation between TBII and ICAM-1 level. In patients with normalized TBII levels after 22 months antithyroid drug treatment, the ICAM-1 levels became normal but in the patients with high serum TBII level showed high serum level of ICAM-1 even with clinical remission with same treatment. The serum levels of TBII and ICAM-1 in relapsed patients were elevated as those of patients before treatment. Conclusion: With the above results, we can conclude that not only the TBII level but seru ICAM-1 level also reflect the degree of autoimmune activity of Graves disease and may be used as an index of the disease course and prognosis of Graves disease treated with antithyroid drugs.

Clinical Study
Genetic Analysis of CLCN7 in an Old Female Patient with Type II Autosomal Dominant Osteopetrosis: Seon Young Kim, Younghak Lee, Yea Eun Kang, Ji Min Kim, Kyong Hye Joung, Ju Hee Lee, Koon Soon Kim, Hyun Jin Kim, Bon Jeong Ku, Minho Shong, Hyon-Seung Yi; Endocrinol Metab. 2018;33(3):380-386. Published online September 18, 2018; DOI: https://doi.org/10.3803/EnM.2018.33.3.380

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Background

Type II autosomal dominant osteopetrosis (ADO II) is a rare genetically heterogeneous disorder characterized by osteosclerosis and increased bone mass, predominantly involving spine, pelvis, and skull. It is closely related to functional defect of osteoclasts caused by chloride voltage-gated channel 7 (CLCN7) gene mutations. In this study, we aimed to identify the pathogenic mutation in a Korean patient with ADO II using whole exome sequencing.

Methods

We evaluated the clinical, biochemical, and radiographic analysis of a 68-year-old woman with ADO II. We also performed whole exome sequencing to identify pathogenic mutation of a rare genetic disorder of the skeleton. Moreover, a polymorphism phenotyping program, Polymorphism Phenotyping v2 (PolyPhen-2), was used to assess the effect of the identified mutation on protein function.

Results

Whole exome sequencing using peripheral leukocytes revealed a heterozygous c.296A>G missense mutation in the CLCN7 gene. The mutation was also confirmed using Sanger sequencing. The mutation c.296A>G was regarded to have a pathogenic effect by PolyPhen-2 software.

Conclusion

We detect a heterozygous mutation in CLCN7 gene of a patient with ADO II, which is the first report in Korea. Our present findings suggest that symptoms and signs of ADO II patient having a c.296A>G mutation in CLCN7 may appear at a very late age. The present study would also enrich the database of CLCN7 mutations and improve our understanding of ADO II.

Citations

Citations to this article as recorded by

Autosomal dominant osteopetrosis type II resulting from a de novo mutation in the CLCN7 gene: A case report
Xiu-Li Song, Li-Yuan Peng, Dao-Wen Wang, Hong Wang
World Journal of Clinical Cases.2022; 10(20): 6936. CrossRef
Magnetic resonance findings in a Cavalier King Charles spaniel with osteopetrosis, Chiari‐like malformation and syringomyelia
Ricardo Fernandes, C J Jordan, Colin Driver
Veterinary Record Case Reports.2019;[Epub] CrossRef

Clinical Study
The Role of Circulating Slit2, the One of the Newly Batokines, in Human Diabetes Mellitus: Yea Eun Kang, Sorim Choung, Ju Hee Lee, Hyun Jin Kim, Bon Jeong Ku; Endocrinol Metab. 2017;32(3):383-388. Published online September 18, 2017; DOI: https://doi.org/10.3803/EnM.2017.32.3.383

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Background

Slit2 is a new secreted protein from adipose tissue that improves glucose hemostasis in mice; however, there is no study about the serum levels and precise role of Slit2 in human. The aim of this study is to explore the serum level of Slit2 in human, and to identify the role of Slit2 in diabetes mellitus (DM).

Methods

The participants of this study consist of 38 subjects with newly diagnosed DM, and 75 healthy subjects as a control group. Serum Slit2 levels were measured using an enzyme-linked immunosorbent assay. Relationship between circulating Slit2 and diabetic related factors was investigated in diabetic group compared with non-diabetic group. Additionally, the correlations between the serum level of Slit2 and diverse metabolic parameters were analyzed.

Results

Circulating Slit2 level was more decreased in diabetic group than in control group, but there was no significant difference statistically. Interestingly, serum levels of Slit2 were significantly negatively correlated to the serum concentrations of fasting glucose (coefficient r=–0.246, P=0.008), the serum concentrations of postprandial glucose (coefficient r=–0.233, P=0.017), and glycosylated hemoglobin (HbA1c; coefficient r=–0.357, P<0.001).

Conclusion

From our study, the first report of circulating Slit2 levels in human, circulating Slit2 level significantly negatively correlated with serum glucose and HbA1c. Our results suggest that the circulating Slit2 may play a role in maintainence of glucose homeostasis in human, even though exact contribution and mechanism are not yet known.

Citations

Citations to this article as recorded by

Brown adipose tissue-derived metabolites and their role in regulating metabolism
Khanyisani Ziqubu, Phiwayinkosi V. Dludla, Sihle E. Mabhida, Babalwa U. Jack, Susanne Keipert, Martin Jastroch, Sithandiwe E. Mazibuko-Mbeje
Metabolism.2024; 150: 155709. CrossRef
An update on the secretory functions of brown, white, and beige adipose tissue: Towards therapeutic applications
Zeinab Ghesmati, Mohsen Rashid, Shabnam Fayezi, Frank Gieseler, Effat Alizadeh, Masoud Darabi
Reviews in Endocrine and Metabolic Disorders.2024; 25(2): 279. CrossRef
The integrated bioinformatic analysis identifies immune microenvironment-related potential biomarkers for patients with gestational diabetes mellitus
Jie-ling Chen, Hui-fang Dai, Xin-chen Kan, Jie Wu, Hong-Wu Chen
Frontiers in Immunology.2024;[Epub] CrossRef
Adipokines from white adipose tissue in regulation of whole body energy homeostasis
Bijayashree Sahu, Naresh C. Bal
Biochimie.2023; 204: 92. CrossRef
The Role of Slit-2 in Gestational Diabetes Mellitus and Its Effect on Pregnancy Outcome
Yan Wang, Shihua Zhao, Wei Peng, Ying Chen, Jingwei Chi, Kui Che, Yangang Wang
Frontiers in Endocrinology.2022;[Epub] CrossRef
The Heartwarming Effect of Brown Adipose Tissue
Kelsey M. Pinckard, Kristin I. Stanford
Molecular Pharmacology.2022; 102(1): 39. CrossRef
New players of the adipose secretome: Therapeutic opportunities and challenges
Laetitia Coassolo, Niels Banhos Dannieskiold-Samsøe, Meng Zhao, Hobson Allen, Katrin J. Svensson
Current Opinion in Pharmacology.2022; 67: 102302. CrossRef
Serum CD14 concentration is associated with obesity and insulin resistance in non-diabetic individuals
Yea Eun Kang, Kyong Hye Joung, Ji Min Kim, Ju Hee Lee, Hyun Jin Kim, Bon Jeong Ku
Journal of International Medical Research.2022; 50(10): 030006052211300. CrossRef
Brown/Beige adipose tissues and the emerging role of their secretory factors in improving metabolic health: The batokines
Bilal Ahmad, Muhammad Sufyan Vohra, Mansab Ali Saleemi, Christopher J. Serpell, Isabel Lim Fong, Eng Hwa Wong
Biochimie.2021; 184: 26. CrossRef
Thermogenic Fat: Development, Physiological Function, and Therapeutic Potential
Bruna B. Brandão, Ankita Poojari, Atefeh Rabiee
International Journal of Molecular Sciences.2021; 22(11): 5906. CrossRef
Brown Adipose Crosstalk in Tissue Plasticity and Human Metabolism
Camilla Scheele, Christian Wolfrum
Endocrine Reviews.2020; 41(1): 53. CrossRef
Development of a Cell-Based Assay for the Detection of Neutralizing Antibodies to PF-06730512 Using Homogenous Time-Resolved Fluorescence
Michael Luong, Ying Wang, Stephen P. Berasi, Janet E. Buhlmann, Hongying Yang, Boris Gorovits
The AAPS Journal.2020;[Epub] CrossRef
Brown and beige fat: From molecules to physiology and pathophysiology
Stefania Carobbio, Anne-Claire Guénantin, Isabella Samuelson, Myriam Bahri, Antonio Vidal-Puig
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids.2019; 1864(1): 37. CrossRef
Serum R-Spondin 1 Is a New Surrogate Marker for Obesity and Insulin Resistance
Yea Eun Kang, Ji Min Kim, Hyon-Seung Yi, Kyong Hye Joung, Ju Hee Lee, Hyun Jin Kim, Bon Jeong Ku
Diabetes & Metabolism Journal.2019; 43(3): 368. CrossRef
Deletion of Robo4 prevents high‐fat diet‐induced adipose artery and systemic metabolic dysfunction
Tam T. T. Phuong, Ashley E. Walker, Grant D. Henson, Daniel R. Machin, Dean Y. Li, Anthony J. Donato, Lisa A. Lesniewski
Microcirculation.2019;[Epub] CrossRef
Adipose Tissue-Derived Signatures for Obesity and Type 2 Diabetes: Adipokines, Batokines and MicroRNAs
Min-Woo Lee, Mihye Lee, Kyoung-Jin Oh
Journal of Clinical Medicine.2019; 8(6): 854. CrossRef
The role of brown and beige adipose tissue in glycaemic control
Katarina Klepac, Anastasia Georgiadi, Matthias Tschöp, Stephan Herzig
Molecular Aspects of Medicine.2019; 68: 90. CrossRef

Clinical Study
The Eosinophil Count Tends to Be Negatively Associated with Levels of Serum Glucose in Patients with Adrenal Cushing Syndrome: Younghak Lee, Hyon-Seung Yi, Hae Ri Kim, Kyong Hye Joung, Yea Eun Kang, Ju Hee Lee, Koon Soon Kim, Hyun Jin Kim, Bon Jeong Ku, Minho Shong; Endocrinol Metab. 2017;32(3):353-359. Published online September 18, 2017; DOI: https://doi.org/10.3803/EnM.2017.32.3.353

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Background

Cushing syndrome is characterized by glucose intolerance, cardiovascular disease, and an enhanced systemic inflammatory response caused by chronic exposure to excess cortisol. Eosinopenia is frequently observed in patients with adrenal Cushing syndrome, but the relationship between the eosinophil count in peripheral blood and indicators of glucose level in patients with adrenal Cushing syndrome has not been determined.

Methods

A retrospective study was undertaken of the clinical and laboratory findings of 40 patients diagnosed with adrenal Cushing syndrome at Chungnam National University Hospital from January 2006 to December 2016. Clinical characteristics, complete blood cell counts with white blood cell differential, measures of their endocrine function, description of imaging studies, and pathologic findings were obtained from their medical records.

Results

Eosinophil composition and count were restored by surgical treatment of all of the patients with adrenal Cushing disease. The eosinophil count was inversely correlated with serum and urine cortisol, glycated hemoglobin, and inflammatory markers in the patients with adrenal Cushing syndrome.

Conclusion

Smaller eosinophil populations in patients with adrenal Cushing syndrome tend to be correlated with higher levels of blood sugar and glycated hemoglobin. This study suggests that peripheral blood eosinophil composition or count may be associated with serum glucose levels in patients with adrenal Cushing syndrome.

Citations

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Association between Eosinophil Count and Cortisol Concentrations in Equids Admitted in the Emergency Unit with Abdominal Pain
María Villalba-Orero, María Dolores Contreras-Aguilar, Jose Joaquín Cerón, Beatriz Fuentes-Romero, Marta Valero-González, María Martín-Cuervo
Animals.2024; 14(1): 164. CrossRef
Inverse relationship between eosinophil profiles and serum glucose concentration in dogs with naturally occurring hypercortisolism
Jimin Oh, Dohee Lee, Taesik Yun, Yoonhoi Koo, Yeon Chae, Mhan-Pyo Yang, Byeong-Teck Kang, Hakhyun Kim
Domestic Animal Endocrinology.2022; 80: 106727. CrossRef
Serum Cortisol and Its Correlation with Leucocyte Profile and Circulating Lipids in Donkeys (Equus asinus)
Daniela Alberghina, Alessandra Statelli, Vincenzo Monteverde, Irene Vazzana, Giuseppe Cascone, Michele Panzera
Animals.2022; 12(7): 841. CrossRef
Changes in leukocytes and CRP in different stages of major depression
Deepti Singh, Paul C. Guest, Henrik Dobrowolny, Veronika Vasilevska, Gabriela Meyer-Lotz, Hans-Gert Bernstein, Katrin Borucki, Alexandra Neyazi, Bernhard Bogerts, Roland Jacobs, Johann Steiner
Journal of Neuroinflammation.2022;[Epub] CrossRef
HIF1α is a direct regulator of steroidogenesis in the adrenal gland
Deepika Watts, Johanna Stein, Ana Meneses, Nicole Bechmann, Ales Neuwirth, Denise Kaden, Anja Krüger, Anupam Sinha, Vasileia Ismini Alexaki, Luis Gustavo Perez-Rivas, Stefan Kircher, Antoine Martinez, Marily Theodoropoulou, Graeme Eisenhofer, Mirko Peitz
Cellular and Molecular Life Sciences.2021; 78(7): 3577. CrossRef
The Immune System in Cushing’s Syndrome
Valeria Hasenmajer, Emilia Sbardella, Francesca Sciarra, Marianna Minnetti, Andrea M. Isidori, Mary Anna Venneri
Trends in Endocrinology & Metabolism.2020; 31(9): 655. CrossRef

Obesity and Metabolism
Plasma Adiponectin Levels in Elderly Patients with Prediabetes: Si Eun Kong, Yea Eun Kang, Kyong Hye Joung, Ju Hee Lee, Hyun Jin Kim, Bon Jeong Ku; Endocrinol Metab. 2015;30(3):326-333. Published online August 4, 2015; DOI: https://doi.org/10.3803/EnM.2015.30.3.326

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Background

The significance of adiponectin levels in elderly individuals with prediabetes has yet to be determined. Thus, the present study was performed to evaluate the relationships between adiponectin levels and anthropometric variables, body composition parameters, insulin sensitivity, and lipid profiles in elderly prediabetic patients.

Methods

The present study included 120 subjects with prediabetes who were >65 years of age and were selected from among 1,993 subjects enrolled in the Korea Rural Genomic Cohort Study. All subjects underwent a 75 g oral glucose tolerance test and tests for measurement of insulin sensitivity. All diagnoses of prediabetes satisfied the criteria of the American Diabetes Association.

Results

Plasma adiponectin levels were lower in elderly prediabetic subjects than elderly subjects with normal glucose tolerance (P<0.01) as well as in elderly prediabetic patients with metabolic syndrome (MetS) than in those without MetS (P<0.02). When the subjects were categorized into two groups according to plasma adiponectin levels, the waist-to-hip ratio and 2-hour insulin levels were significantly lower in individuals with high plasma adiponectin levels than in those with low plasma adiponectin levels. Additionally, the plasma adiponectin levels of elderly prediabetic subject were inversely correlated with body mass index (BMI), waist circumference (WC), waist-to-hip ratio, visceral fat, visceral fat ratio, and 2-hour insulin levels.

Conclusion

The present findings demonstrated that the major factors correlated with adiponectin levels in elderly prediabetic subjects were BMI, WC, waist-to-hip ratio, visceral fat, visceral fat ratio, and 2-hour insulin levels.

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Differential Association of Selected Adipocytokines, Adiponectin, Leptin, Resistin, Visfatin and Chemerin, with the Pathogenesis and Progression of Type 2 Diabetes Mellitus (T2DM) in the Asir Region of Saudi Arabia: A Case Control Study
Mohammad Muzaffar Mir, Rashid Mir, Mushabab Ayed Abdullah Alghamdi, Javed Iqbal Wani, Zia Ul Sabah, Mohammed Jeelani, Vijaya Marakala, Shahzada Khalid Sohail, Mohamed O’haj, Muffarah Hamid Alharthi, Mohannad Mohammad S. Alamri
Journal of Personalized Medicine.2022; 12(5): 735. CrossRef
Postloading insulinemia is independently associated with arterial stiffness in young Japanese persons
Norimitsu Murai, Naoko Saito, Sayuri Nii, Yuto Nishikawa, Asami Suzuki, Eriko Kodama, Tatsuya Iida, Kentaro Mikura, Hideyuki Imai, Mai Hashizume, Yasuyoshi Kigawa, Rie Tadokoro, Chiho Sugisawa, Kei Endo, Toru Iizaka, Fumiko Otsuka, Shun Ishibashi, Shoichi
Hypertension Research.2021; 44(11): 1515. CrossRef
Association of Adiponectin and rs1501299 of the ADIPOQ Gene with Prediabetes in Jordan
Mahmoud Alfaqih, Faheem Al-Mughales, Othman Al-Shboul, Mohammad Al Qudah, Yousef Khader, Muhammad Al-Jarrah
Biomolecules.2018; 8(4): 117. CrossRef

Case Reports

Bone Metabolism
A Novel PHEX Gene Mutation in a Patient with Sporadic Hypophosphatemic Rickets: Yea Eun Kang, Jun Hwa Hong, Jimin Kim, Kyong Hye Joung, Hyun Jin Kim, Bon Jeong Ku, Koon Soon Kim; Endocrinol Metab. 2014;29(2):195-201. Published online June 26, 2014; DOI: https://doi.org/10.3803/EnM.2014.29.2.195

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Phosphate regulating gene with homologies to endopeptidases on the X-chromosome (PHEX) is a common cause of X-linked hypophosphatemic (XLH) rickets. Diverse PHEX gene mutations have been reported; however, gene mutations in sporadic rickets are less common than in XLH rickets. Herein, we describe a 50-year-old female patient with sporadic hypophosphatemic rickets harboring a novel splicing-site mutation in the PHEX gene (c.663+1G>A) at the exon 5-intron 5 boundary. The patient had recently suffered from right thigh pain and an aggravated waddling gait. She also presented with very short stature, generalized bone pain, and muscle weakness. Despite low serum phosphate levels, her phosphate reabsorption rate was lower than normal. Additionally, her 1,25-dihydroxyvitamin D₃ concentration was lower than normal, although FGF23 level was normal. After treatment with alfacalcidol and elemental phosphate, her rachitic symptoms subsided, and callus formation was observed in the fracture site on the right femur.

Citations

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A pathogenic PHEX variant (c.1483-1G>C) in a Korean patient with X-linked hypophosphatemic rickets
In Hwa Jeong, Jae-Ho Yoo, Namhee Kim
Annals of Pediatric Endocrinology & Metabolism.2021; 26(2): 130. CrossRef
A novel de novo mosaic mutation in PHEX in a Korean patient with hypophosphatemic rickets
Misun Yang, Jinsup Kim, Aram Yang, Jahyun Jang, Tae Yeon Jeon, Sung Yoon Cho, Dong-Kyu Jin
Annals of Pediatric Endocrinology & Metabolism.2018; 23(4): 229. CrossRef
Rodzinna krzywica hipofosfatemiczna – opis przypadku i przegląd literatury
Agnieszka Jędzura, Omar Bjanid, Piotr Adamczyk, Krzysztof Plesiński, Karolina Klimaszewska-Adamus, Maria Szczepańska
Pediatria Polska.2015; 90(5): 437. CrossRef
Articles in 'Endocrinology and Metabolism' in 2014
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Endocrinology and Metabolism.2015; 30(1): 47. CrossRef

A Case of Multiple Endocrine Neoplasia Type I with Atypical Clinical Course.: Yun Sun Choi, Youn Sun Bai, Bon Jeong Ku, Young Suk Jo, Young Kun Kim, Heung Kyu Ro, Minho Shong; J Korean Endocr Soc. 2008;23(4):266-271. Published online August 1, 2008; DOI: https://doi.org/10.3803/jkes.2008.23.4.266

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Abstract PDF

Multiple endocrine neoplasia type 1 (MEN 1) is characterized by the combined occurrence of primary hyperparathyroidism, enteropancreatic tumors and anterior pituitary adenoma. Yet carcinoid tumors, adrenal adenoma and lipoma might exist simultaneously. Thymic carcinoid tumors, which are recognized as one of the causes of death for patients with MEN 1, are uncommon and their natural history has barely been investigated.

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A rare case of multiple endocrine neoplasia type 1 initially presenting as an asymptomatic, huge mediastinal mass: case report
Ji Eun Jun, You-Cheol Hwang, Kyu Jeong Ahn, Ho Yeon Chung, In-Kyung Jeong
BMC Endocrine Disorders.2021;[Epub] CrossRef
A Case of Asymptomatic Multiple Endocrine Neoplasia Type I with Thymic Carcinoid
Suk Ki Park, Moon Won Lee, In Sub Han, Young Joo Park, Sung Yong Han, Joon Woo Park, Bong Eun Lee, Gwang Ha Kim, Sang Soo Kim
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2019; 19(1): 65. CrossRef
Incidental metastatic mediastinal atypical carcinoid in a patient with parathyroid adenoma: a case report
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Original Articles

Change in Thyroid Autoantibodies According to the Clinical Course of Painless Thyroiditis Excluding Postpartum Thyroiditis.: Ihn Suk Lee, Young Suk Jo, Bon Jeong Ku, Minho Shong, Young Kun Kim, Heung kyu Ro; J Korean Endocr Soc. 2008;23(4):245-252. Published online August 1, 2008; DOI: https://doi.org/10.3803/jkes.2008.23.4.245

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Abstract PDF: BACKGROUND
Painless thyroiditis is characterized by painless, destructive inflammation of the thyroid gland. Although thyroid autoantibodies are frequently detected in patients suffering from this condition, the clinical significance of these antibodies is not well understood. Therefore, this study was conducted to investigate the relationship between thyroid function and thyroid autoantibodies in painless thyroiditis according to clinical course. METHODS: Patients proven to have painless thyroiditis were retrospectively included in this study. We analyzed their clinical features, thyroid function and titers of thyroid autoantibodies according to clinical course, which was divided into three phases; thyrotoxic, hypothyroid and recovery. RESULTS: Of the 21 patients included in this study, 2 were male and 19 were female. During the thyrotoxic phase, the mean free T4 concentration was 4.03 (2~6.8) ng/mL and the mean concentration of thyroid stimulating hormone (TSH) was 0.02 (0.01~0.07) U/mL. In addition, the titer of antithyroglobulin antibody and antithyroid peroxidase antibody was 298 (4.8~995) U/mL and 3318 (0.1~25280) U/mL, respectively during this phase. During the hypothyroid phase, the mean TSH was 16.3 (4.3-49.5) U/mL and was found to be positively correlated with the level of free T4 observed during the thyrotoxic phase (r = 0.523, P = 0.031). During the recovery phase, the titer of antithyroglobulin antibody was significantly reduced to 180 (38~487) U/mL when compared with the titer taken during the thyrotoxic phase (P = 0.016). Additionally, during the hypothyroid phase, patients found to have antithyroid peroxidase antibody had a higher titer of TSH than those that did not (23.9 (6.5~49.5) vs. 11.2 (5.3~18.2) U/mL, P = 0.004). CONCLUSION: The titer of free T4 and the presence of antithyroid peroxidase observed during the thyrotoxic phase were related to the titer of TSH during hypothyroid phase. Additionally, the titer of antithyroglobulin antibody was significantly reduced during the recovery phase.

The Relationship between the Expression of MHC Class II Antigens and the Clinical Prognosis of Papillary Thyroid Carcinoma Patients.: Jun Chul Lee, Seul Young Kim, Yun Sun Choi, Youn Sun Bai, Yun Jeung Kim, Ihn Suk Lee, Ki Hyun Kwon, So Young Rha, Bon Jeong Ku, Young Kun Kim, Heung Kyu Ro, Shengjin Li, Jin Man Kim, Young Suk Jo, Minho Shong; J Korean Endocr Soc. 2007;22(1):26-34. Published online February 1, 2007; DOI: https://doi.org/10.3803/jkes.2007.22.1.26

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Abstract PDF: BACKGROUND
Papillary thyroid carcinoma is among the most curable cancers, but some patients are at high risk for recurrence or even death. MHC antigens are essential molecules for the pathogenesis of carcinoma and also the physiologic immune responses against tumor. However, there is no data about the relationship between the expression of MHC antigens and the clinical prognosis of papillary thyroid carcinoma patients. METHODS: We analyzed the relationship between the various prognostic factors and the MHC antigen expression by conducting a retrospective study of 215 patients, who had undergone thyroidectomy for papillary thyroid carcinoma between 1987 and 2003. RESULTS: The expressions of MHC class II antigens were more frequent in papillary thyroid carcinoma than in the other thyroid diseases. Yet there was no statistically significant relationship between most of the clinicopathological factors and the expression of MHC class II antigens in papillary thyroid carcinoma patients. Interestingly, an HLA-DR expression was found in 8 (30.8%) of the 26 patients in the recurrence group and in 13 (76.5%) of the 17 patients in the non-recurrence group, and HLA-DP/DQ immunoreactivity was positive in 10 (38.5%) cases of the recurrence group and in 14 (82.4%) cases of the non-recurrence group. CONCLUSION: Papillary thyroid carcinoma showed a more frequent expression of MHC Class II antigens. However, the recurred papillary thyroid carcinoma showed a tendency to downregulate the expression of MHC class II antigens. Hence, the molecular mechanism for the expression of MHC class II antigens might have a role in the recurrence of papillary thyroid carcinoma.

The Relationship between the BRAF Mutations in Thyroid Papillary Carcinomas and the Prognostic Factors.: So Young Rha, Jun Chul Lee, Ki Hyun Kwon, Hyo Jin Lee, Koon Soon Kim, Young Suk Jo, Bon Jeong Ku, Minho Shong, Young Kun Kim, Heung Kyu Ro; J Korean Endocr Soc. 2005;20(3):224-229. Published online June 1, 2005; DOI: https://doi.org/10.3803/jkes.2005.20.3.224

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Abstract PDF

BACKGROUND
Thyroid cancers account for about 1% of all human malignancies, with papillary thyroid carcinomas being the most common istotype. Several investigators have recently identified the most common BRAF mutation, the T1796A transversion mutation, in 29~69% of papillary thyroid cancers. The BRAF mutation has been demonstrated as a novel prognostic biomarker for the prediction of poor clinicopathological outcomes, such as increased incidence of extrathyroid invasion and distant metastasis of the tumor. In this study, we investigated the prevalence of the BRAF mutation of thyroid tissues obtained by a thyroidectomy, and its correlation with the clinicopathological outcomes. METHODS: We studied 36 thyroid tissues obtained from 24 women and 12 men by thyroidectomies, including 30 papillary carcinomas, 3 follicular carcinomas, 1 medullary carcinoma and 2 nodular hyperplasia. The mutation was sought in all specimens using DNA sequencing. RESULTS: We studied the BRAF exon 15 T1796A in these 36 thyroid tissues. The mean age at surgery was 46.6, ranging from 18 to 72 years, with a median tumor size of 2.79, ranging from 1.5 to 4.5cm. At the time of diagnosis, 27 of the 34 patients presented with some kind of extrathyroidal invasion of the tumor, and 16 had lymph node metastases. 16, 2 and 16 patients were in stages I, II and III, respectively. There was no distant metastasis. A missense mutation was found at T1796A in exon 15 in 21 of the 30 papillary carcinomas(70%). The other thyroid diseases, including the 3 follicular carcinomas, 1 medullary carcinoma and 2 nodular hyperplasia show no exon 15 T1759A transversion mutation. No statistically significant association was found between the BRAF mutations and clinicopathological characteristics of papillary carcinomas. CONCLUSION: The BRAF mutation is a important genetic alteration, with a high prevalence in papillary thyroid carcinomas. However, there was no significant association between the BRAF mutation and any of the clinicopathological factors. Further, large scale studies will be needed to evaluate the correlation between the BRAF mutation and the clinicopathological factors

Citations

Citations to this article as recorded by

Detection of Plasma BRAFV600EMutation Is Associated with Lung Metastasis in Papillary Thyroid Carcinomas
Bo Hyun Kim, In Joo Kim, Byung Joo Lee, Jin Choon Lee, In Suk Kim, Seong-Jang Kim, Won Jin Kim, Yun Kyung Jeon, Sang Soo Kim, Yong Ki Kim
Yonsei Medical Journal.2015; 56(3): 634. CrossRef
Diagnostic Effectiveness of PCR-based Tests DetectingBRAFMutation for Treating Malignant Melanoma: A Systematic Review
Hae-Won Shin, Ryeo-Jin Ko, Min Lee, Hee-Young Bang, Kye-Chul Kwon, Jong-Woo Park, Sun-Hoe Koo
Laboratory Medicine Online.2014; 4(4): 203. CrossRef
BRAFV600E mutation does not serve as a prognostic factor in Korean patients with papillary thyroid carcinoma
Dongbin Ahn, June Sik Park, Jin Ho Sohn, Jae Hyug Kim, Sun-Kyun Park, An Na Seo, Ji Young Park
Auris Nasus Larynx.2012; 39(2): 198. CrossRef
The Frequency ofBRAFMutation in Very Small Papillary Thyroid Carcinomas
Taeeun Kim, Ji-Hyun Roh, Hee-Jung Park, Jee Eun Kwon, So-Young Kang, Yoon-La Choi, Young Lyun Oh
The Korean Journal of Pathology.2010; 44(3): 308. CrossRef
ras Mutation in Korean Papillary Thyroid Carcinomas
Jung Hwa Jung, Keun-Sook Kim, Tae Sik Jung, Young Lyun Oh, Hye Won Jang, Hye Seung Jung, Yong-Ki Min, Myung-Shik Lee, Moon-Kyu Lee, Kwang-Won Kim, Jae Hoon Chung
Journal of Korean Endocrine Society.2007; 22(3): 203. CrossRef

The Adequacy of Ultrasound-Guided Fine Needle Aspiration in Thyroid Nodules.: Hyo Jin Lee, So Young Rha, Ki Hyun Kwon, Jun Chul Lee, Koon Soon Kim, Young Suk Jo, Bon Jeong Ku, Minho Shong, Young Kun Kim, Heung Kyu Ro; J Korean Endocr Soc. 2005;20(2):154-159. Published online April 1, 2005; DOI: https://doi.org/10.3803/jkes.2005.20.2.154

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Abstract PDF

BACKGROUND
Fine needle aspiration(FNA) is an accurate and safe method for the diagnosis of thyroid nodules. One of the limitations of FNA is the variable rate of unsatisfactory specimens, especially in small sized, deep seated or complex cystic nodules. To overcome this problem, ultrasound-guided FNA(US-FNA) has been widely used. In this study, the adequacy of cytologic specimens by US-FNA was compared with that of conventional palpation-guided FNA(P-FNA). METHODS: The medical records of all patients who were engaged in FNA due to thyroid nodules at Chungnam National University Hospital from January 2003 to July 2004 were retrospectively examined. The US-FNA and P-FNA were performed in 114 and 185 patients, respectively. RESULTS: Comparison of the adequacy of the two techniques in providing sufficient material for the cytologic diagnosis showed that specimens in 24(13.0%) and 6(5.3%) patients collected by P-FNA and US-FNA, respectively, were unsatisfactory(P=0.031). A total of 23 patients underwent thyroid surgery due to strong suspicion of malignancy at cytologic finding and/or on clinical judgement. Seventeen patients belonged to the P-FNA group and 6 patients to the US-FNA group. In the P-FNA group, a histologic diagnosis revealed two false-negative cytologic findings, but no false-negative findings were found in the US-FNA group. CONCLUSION: Compared with P-FNA, US-FNA may reduce the possibility of unsatisfactory cytologic specimens and the rate of false-negative diagnosis, and may improve the diagnostic accuracy in investigating thyroid nodules

Citations

Citations to this article as recorded by

Prevalence of Thyroid Nodules Detected by Ultrasonography in Adults for Health Check-up and Analysis of Fine Needle Aspiration Cytology
Jae Hoon Chung
Journal of Korean Endocrine Society.2008; 23(6): 391. CrossRef

The STAT3 in Glucose Homeostasis.: Bon Jeong Ku, Su Hyeon Park, Koon Soon Kim, Young Kun Lim, Min Ho Shong; J Korean Endocr Soc. 2004;19(3):274-280. Published online June 1, 2004

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