Diabetes & Metabolism Journal

Original Article

Obesity and Metabolic Syndrome
The Usefulness of the Glycosylated Hemoglobin Level for the Diagnosis of Gestational Diabetes Mellitus in the Korean Population: Ah Jeong Ryu, Hyuk Jin Moon, Joo Ok Na, Yeo Joo Kim, Sang Jin Kim, Sang Il Mo, Jeong Ran Byun; Diabetes Metab J. 2015;39(6):507-511. Published online November 23, 2015; DOI: https://doi.org/10.4093/dmj.2015.39.6.507

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Background

An oral glucose tolerance test (OGTT) is the current method used for screening and diagnosis of gestational diabetes mellitus (GDM). OGTT is a relatively complicated procedure and is expensive. Thus, new strategies that do not require fasting or more than a single blood draw may improve the diagnosis of GDM and increase the rate of GDM testing. We investigated the utility of monitoring glycosylated hemoglobin (HbA1c) levels for the diagnosis of GDM.

Methods

The data from 992 pregnant women with estimated gestational ages ranging from 24 to 28 weeks were retrospectively reviewed. There were 367 women with plasma glucose levels ≥140 mg/dL 1 hour after a 50-g OGTT. GDM was diagnosed according to the Carpenter-Coustan criteria for a 3-hour 100 g OGTT. A HbA1c assessment was performed at the same time.

Results

We enrolled 343 women in this study, and there were 109 women with GDM. The area under the curve the receiver operating characteristic curve for HbA1c detection of GDM was 0.852 (95% confidence interval, 0.808 to 0.897). A HbA1c cutoff value ≥5.35% had maximal points on the Youden index (0.581). The sensitivity was 87.2% and the specificity was 70.9% for diagnosing GDM. A threshold value ≥5.35% indicated that 163 patients had GDM and that 68 (41.7%) were false positive. The positive predictive value was 58.3% at this threshold value.

Conclusion

Despite substantial progress in methodology, HbA1c values cannot replace OGTT for the diagnosis of GDM.

Citations

Citations to this article as recorded by

Predelivery HbA1c levels and their relationship with adverse perinatal outcomes in women with normal 75-g OGTT
Xiaoxia Tang, Jin Wei, Zifeng Jiang, Shaohua Wu
Archives of Gynecology and Obstetrics.2023; 310(1): 293. CrossRef
The diagnostic value of glycosylated hemoglobin for gestational diabetes mellitus in Asian populations: A systematic review and meta‐analysis
Jiani Zhang, Fan Zhou, Tingting Xu, Jinfeng Xu, Yaqian Li, Li Lin, Qi Cao, Xiaodong Wang
Journal of Obstetrics and Gynaecology Research.2022; 48(4): 902. CrossRef
The role of first-trimester HbA1c in the early detection of gestational diabetes
Mehrnaz Valadan, Zeinab Bahramnezhad, Fatemeh Golshahi, Elham Feizabad
BMC Pregnancy and Childbirth.2022;[Epub] CrossRef
Glycaemic Variability and Risk Factors of Pregnant Women with and without Gestational Diabetes Mellitus Measured by Continuous Glucose Monitoring
Martina Gáborová, Viera Doničová, Ivana Bačová, Mária Pallayová, Martin Bona, Igor Peregrim, Soňa Grešová, Judita Štimmelová, Barbora Dzugasová, Lenka Šalamonová Blichová, Viliam Donič
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A Review on Research Progress in the Application of Glycosylated Hemoglobin and Glycated Albumin in the Screening and Monitoring of Gestational Diabetes
Xinyan Liu, Na Wu, Abdulrahman Al-Mureish
International Journal of General Medicine.2021; Volume 14: 1155. CrossRef
Evaluation of the Combination of HbA1C with Hematocrit for Early Screening of Gestational Diabetes Mellitus
Ali Reza Norouzi, Mahsa Siavashi, Fatemeh Norouzi, Maryam Talayeh, Somayyeh Noei Teymoordash
Journal of Obstetrics, Gynecology and Cancer Research.2021; 6(4): 217. CrossRef
The accuracy of haemoglobin A1c as a screening and diagnostic test for gestational diabetes: a systematic review and meta-analysis of test accuracy studies
Chiamaka Esther Amaefule, Archana Sasitharan, Princee Kalra, Stamatina Iliodromoti, Mohammed S.B. Huda, Ewelina Rogozinska, Javier Zamora, Shakila Thangaratinam
Current Opinion in Obstetrics & Gynecology.2020; 32(5): 322. CrossRef
Downregulation of microRNA-873 attenuates insulin resistance and myocardial injury in rats with gestational diabetes mellitus by upregulating IGFBP2
Na Han, Hai-Yan Fang, Jie-Xuan Jiang, Qian Xu
American Journal of Physiology-Endocrinology and Metabolism.2020; 318(5): E723. CrossRef
Reliability of glycosylated hemoglobin in the diagnosis of gestational diabetes mellitus
Duria A. Rayis, Abdel B. A. Ahmed, Manal E. Sharif, Amir ElSouli, Ishag Adam
Journal of Clinical Laboratory Analysis.2020;[Epub] CrossRef
Mid‐trimester glycosylated hemoglobin levels (HbA1c) and its correlation with oral glucose tolerance test (World Health Organization 1999)
Devanshi Dubey, Shipra Kunwar, Uma Gupta
Journal of Obstetrics and Gynaecology Research.2019; 45(4): 817. CrossRef
The utility of HbA1c combined with haematocrit for early screening of gestational diabetes mellitus
Kui Wu, Yan Cheng, Tingting Li, Ziwen Ma, Junxiu Liu, Qingying Zhang, Haidong Cheng
Diabetology & Metabolic Syndrome.2018;[Epub] CrossRef
The Cutoff Value of HbA1c in Predicting Diabetes and Impaired Fasting Glucose
Seyoung Kwon, Youngak Na
The Korean Journal of Clinical Laboratory Science.2017; 49(2): 114. CrossRef
Diagnosing gestational diabetes mellitus: implications of recent changes in diagnostic criteria and role of glycated haemoglobin (HbA1c)
Fahmy W Hanna, Christopher J Duff, Ann Shelley-Hitchen, Ellen Hodgson, Anthony A Fryer
Clinical Medicine.2017; 17(2): 108. CrossRef
Utility of Glycated Haemoglobin in Gestational Diabetes Mellitus: Present and Future
Rajesh Rajput, Deepak Jain
EMJ Diabetes.2016; : 84. CrossRef

Case Reports

A Case of Multifocal Pyomyositis in Diabetes Mellitus.: Eun Seo Park, Joo Hyun Kim, Bo Yong Jung, Jae Ho Park, Ji Hun Ahn, Jun Young Lee, Soon Ho Hwang, Kyung Wook Lee, Jong Kyu Han, Ji O Mok, Yeo Joo Kim, Hyeong Kyu Park, Chul Hee Kim, Sang Jin Kim, Dong Won Byun, Kyo Il Suh, Myung Hi Yoo; Korean Diabetes J. 2006;30(2):140-144. Published online March 1, 2006; DOI: https://doi.org/10.4093/jkda.2006.30.2.140

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Abstract PDF: Pyomyositis is an acute bacterial infection of skeletal muscle, usually caused by Staphylococcus aureus. It is common in the tropics but rare in temperate climates. In temperature climate there are predisposing factors, such as diabetes, HIV infection, malignancy. The incidence of reported bacterial pyomyositis is increasing in recently, especially among immunocompromised persons such as HIV infection or diabetes mellitus. We experience multifocal pyomyositis in 49-year-old man with type 2 diabetes mellitus presented with drowsy mental state. Muscular USG and MRI finding shows multifocal abscess in thigh. Blood culture revealed Staphyloccus aureus. And patient received a intravenous broad-spectrum antibiotics, incision and drainage. He was successfully managed with drainage and antibiotics then discharge. Since diabetes or infection with HIV predisposes patients to bacterial infection, pyomyositis will occur more frequently. Increased awareness if the disease will improve management.

A Case of Acute Multifocal Bacterial Nephritis Associated with Diabetic Autonomic Neuropathy.: Eun Kyung Park, Jae Hak Lee, Ji Sung Yoon, Ji O Mok, Yeo Joo Kim, Hyeong Kyu Park, Chul Hee Kim, Sang Jin Kim, Dong Won Byun, Kyo Il Suh, Myung Hi Yoo; Korean Diabetes J. 2003;27(4):379-384. Published online August 1, 2003

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Abstract PDF: Acute multifocal bacterial nephritis is a severe form of acute renal infection in which a heavy leukocytic infiltrate occurs throughout the kidney. It is also an early phase of renal corticomedullary abscess. Clinically, patients have evidence of a severe urinary tract infection secondary to a gram-negative organism and there are frequently signs of sepsis. About half of the reported patients have been diabetics. Urinary tract infections are more common in diabetic women than in non-diabetic women. A variety of factors may contribute. The most important predisposing factor may be bladder dysfunction as a result of diabetic neuropathy and cystopathy. Diabetic cystopathy begins as decreased bladder sensation and decreased reflex detrusor activity caused by neuropathy affecting sympathetic and parasympathetic afferent fibers. Impaired bladder sensation results in bladder distention and increased residual urine volume. Long-term effects may eventually be vesicoureteral reflux and recurrent upper urinary tract infection. However, until now no diabetic patient with acute multifocal bacterial nephritis has been reported in Korea. Acute multifocal bacterial nephritis can be diagnosed by clinical manifestations and on radiologic grounds, including abdominal computed tomography showing multiple, wedge shaped, poorly defined areas of decreased contrast enhancement in multiple renal lobes. Therefore, we report the first Korean case of acute multifocal bacterial nephritis associated with diabetic autonomic neuropathy and review the literatures.

A Case of Invasive Aspergillosis of the Nasal Septum in a Patient with Diabetes Mellitus.: Tae Hoon Kim, Ji Sung Yoon, Ji O Mok, Yeo Joo Kim, Hyeong Kyu Park, Chul Hee Kim, Sang Jin Kim, Dong Won Byun, Kyo Il Suh, Myung Hi Yoo, Jang Mook Kim, Yoon Jung Kim; Korean Diabetes J. 2003;27(4):373-378. Published online August 1, 2003

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Abstract PDF: Invasive aspergillosis of the nasal cavity and paranasal sinuses is characterized by invasion and destruction of the bony sinus walls, the orbit, and other soft tissues of the face. It occurs particularly in patients with severe immune deficits, and less frequently in patients with diabetes mellitus. The therapeutic outcome of invasive aspergillosis is unsatisfactory. Mortality rates range from 50 to 80%, depending primarily on the underlying disease. In general, the prognosis depends on making a prompt diagnosis of infection and providing early treatment. However the diagnosis of invasive aspergillosis is difficult because there is no specific symptom, nor any rapid diagnostic method for confirmation. We report a case of a 64-year old woman with diabetes mellitus and invasive aspergillosis of the nasal septum. She was diagnosed by biopsy of the nasal septum and treated with systemic antifungal agent and surgical debridement. (Ed- paragraphs combined here) In conjunction with this case we review the previous literatures and suggest that prompt antifungal therapy with glycemic control is an important element in the treatment of invasive aspergillosis in a diabetic patient.

A Case of Endogenous Endophthalmitis in a Patient with Diabetic Retinopathy.: Chang Hee Han, Ji Sung Yoon, Ji O Mok, Yeo Joo Kim, Hyeong Kyu Park, Chul Hee Kim, Sang Jin Kim, Dong Won Byun, Kyo Il Suh, Myung Hi Yoo, Jun Sun Kim; Korean Diabetes J. 2003;27(4):367-372. Published online August 1, 2003

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Abstract PDF: Infectious endogenous endophthalmitis can occur by entrance of a pathogenic microorganism into the eye from various primary infection sites other than the eye. Although relatively rare, it results in visual loss frequently in spite of early diagnosis and treatment. It occurs in the process of systemic infection and its underlying conditions are diabetes, advanced liver disease, and immune suppressive state or drug abuse. We report a case of a 51-year old man with proliferative diabetic retinopathy and endogenous endophthalmitis caused by S. aureus from a skin infection. The ocular symptoms improved after systemic and intravitreal antibiotic therapy but visual loss could not be prevented. In conjunction with this case, we review the available literatures and stress the seriousness of this disease when concurrent in diabetic patients.

Original Articles

Role of Nitric Oxide on the Insulin Secretion of Rat Pancreas.: Moon Suk Nam, Sung Ki Kim, Seong Bin Hong, Yeo Joo Kim, Mi Rim Kim, Yong Seong Kim, Young Duk Song, Hyun Chul Lee, Kap Bum Huh; Korean Diabetes J. 1999;23(6):748-756. Published online January 1, 2001

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Abstract PDF: BACKGROUND
Diabetes mellitus could occur when insulin secretion of pancreas is inadequate in response to blood glucose. The mechanisms on failure of pancreatic beta cell are still not known. Several recent experiments have reported that nitric oxide (NO) may be considered as a modulator of insulin secretion and impairment associated with the beta cell. The present study was purposed to investigate the role of nitric oxide on the secretion of insulin of rat pancreas in vivo and in vitro. METHODS: The plasma insulin and glucose were measured after intravenous injection of nitric oxide synthase (NOS) inhibitor (NG-nitro-L-arginine methyl. ester, L-NAME) in male rat. Insulin release was determmed during stimulation of NOS inhibitor and nitric oxide donor (hydroxylamine) in the isolated pancreatic islets. RESULT: 1. The insulin secretory response with L-arginine stimulation after injection of NOS inhibitor (L-NAME) in rat was increased resulting in mild hypoglycemia which recovered promptly. This showed that NO were related with L-arginine induced insulin secretion. 2. After isolation of pancreatic islet, 11,0 mM glucose induced insulin release was increased in culture media and L-arginine (1.0 mM) induced insulin release was also increased compared with control (6.72+/-0.66 vs. 3.48+/-0.42 prnol/islet/hour, p<0.05). 3. L-arginine induced insulin release was increased with L-NAME in the isolated rat pancreatic islets (12.5+/-1.38 vs, 7.23+/-0.93 ng/islet/ hour, p<0.05). 4. Glucose induced insulin release was progressively inhibited by NO donor hydroxylamine in the isolated rat pancreas islet (6.72+/-0.75 vs. 2.46+/-0.60 pmol/islet/hour p<0.05). CONCLUSION: These results strongly suggest that nitric oxide is a negative modulator of insulin release in normal rats induced by the nutrient secretagogues L-arginine and glucose in vivo and in vitro. Further investigation on the mechanism of nitric oxide in insulin secretory pathway will be necessary.

Insulin Secretory Dysfunction in the Patients with Untreated Hyperthyroidism.: Moon Suk Nam, Seung Yong Shin, Young Wan Kim, Seong Bin Hong, Yeo Joo Kim, Mi Rim Kim, Won Sick Choe, Yong Seong Kim; Korean Diabetes J. 1998;22(3):320-327. Published online January 1, 2001

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Abstract PDF: BACKGROUND
Abnormal glucose metabolism with impaired glucose tolerance has been documented in patients with thyrotoxicosis, but the pathogenesis is not fully understood. Therefore, the aim of the present study was to study the secretory dysfunction of pancreatic 9-cell and to confirm hyperinsulinemia and hyperproinsulinemia during oral glucose tolerance test(OGTT) in patients with thyrotoxicosis. METHODS: After an overnight fast, 75 g OGTT was performed in 10 patients with hyperthyroidism and in 10 healthy control subjects matched for age, sex and hody mass index. Plasma insulin(immuno-reactive insulin, IRI), C-peptide, proinsulin levels were measured by radioimmunoassay. RESULTS: Fasting plasma glucose, insulin and C-peptide levels were similar in the two groups, but plasma proinsulin level was increased in patients with hyperthyroidism(p<0.05). A twofold rise of plasma proinsulin and the proinsulin/insulin ratio was also found in patients with hyperthyroidism during OGTT. The molar ratio of C-peptide and insulin(IRI) was similar in the two groups. CONCLUSION: Hyperinsulinemia and hyperproinsulinemia were found in patients with hyperthyroidism compared with controls. Disproportionally increased proinsulin level suggested a pancreatic secretory dysfunction in the patients with hyperthyroidism.

Comparison of the New Diagnostic Criteria for Diabetes Mellitus Recommended by the Expert Committee of the American Diabetes Association with the Criteria by the NDDG or WHO in Koreans with Fasting Plasma Glucose between 110 and 139 mg / dL.: Yeo Joo Kim, Moon Suk Nam, Mi Rim Kim, Yong Seong Kim, Kwan Woo Lee, Hyeon Man Kim, Choon Hee Chung, Su Youn Nam, Bong Soo Cha, Kyung Rae Kim, Hyun Chul Lee, Sam Kweon, Yong Wook Cho, Kap Bum Huh; Korean Diabetes J. 1998;22(2):209-217. Published online January 1, 2001

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Abstract PDF: BACKGROUND
The current diagnostic criteria for diabetes mellitus announced by National Diabetes Data Group(NDDG) in 1979 were revised by Expert Committee of World Health Organization(WHO) in both 1980 and 1985. However, according to advancement in the knowledge of the etiology and pathogenesis of diabetes mellitus, the International Expert Committee working under the sponsorship of the American Diabetes Association(ADA) decided to adopt the resolution proposing that the criteria of fasting glucose level applied to diagnosis of diabetes mellitus should be lowered at the 57 ADA conference held in Boston, USA in June 1997(97 ADA). Hereupon, by comparing the diagnostic criteria of the former (NDDG/WHO) with the later, the authors have examined the usefulness of new diaignostic criteria, 97 ADA. METHOD: We collected the data from 13 university hospitals in Korea which contain the results of 75 gram oral glucose tolerance test(OGTT) for 532 Kareans between 110 and 139 mg/dL in fasting plasma glucose. We have then evaluated the results by classifying and comparing them in accordance with the criteria of NDDG/WHO and 97 ADA, respectively. RESULTS: 1. The number which tested for oral glucose tolerance was 532 and the majority of tests have been carried out between 110 and 119 mg/dL in fasting plasma glucose. 2. When we have classified the same results of OGTT by respective diagnostic criteria of NDDG/ WHO and 97 ADA, the NDDG/WHO have diagnosed 50.4%(268/532) of the total number of people as diabetes mellitus, while the '97 ADA has shown that only 33.1%(176/532) of it corresponded to the same diagnosis. On the other hand, the diagnosis rate of impaired fasting glucose(IFG) or impaired glucose tolerance(IGT) has shown 28.8~ 31.8%(NDDG/ WHO) and 66.9%(97 ADA), respectively. 3. Following the diagnostic criteria of the 97 ADA, we have separated the results into two groups which were above and below 126 mg/dL in fasting glucose. In addition, when we have again classified two groups by the criteria of the NDDG/WHO, the group above 126mg/dL in fasting glucose, which was all diagnosed as diabetes mellitus in 97 ADA has represented a ratio of 72.2%(127/176) in same diagnosis. However, within the group below 126mg/ dL, in fasting glucose being classitied as IFG in the 97 ADA, its diagnosis rate of diabetes mellitus has also shown 39.7%(141/356) applying to the criteria of the NDDG/WHO. CONCLUSION: The criteria of the 97 ADA can simply make a diagnosis of diabetes mellitus with fasting plasma glucose and additionally fmd out the IFG whose rate is 17.9 20% regarded as a normal condition by NDDG/WHO, whereas the existing criteria of the NDDG/WHO have to carry out the OGTT which is difficult in clinics. However, since among the patients ot 50.4% diagnosed as diabetes mellitus by NDDG/WHO, the 97 ADA classifies 17.3% of them as IFG, it is regarded that the need of OGTT for the diagnosis of diabetes mellitus can not be passed over in the future.

Serum Proinsulin Responses during Oral Glucose Tolerance Test in patients with Non-insulin Dependent Diabetes Mellitus.: Moon Suk Nam, Seong Bin Hong, Yeo Joo Kim, Mi Rim Kim, Yong Seong Kim, In Young Hyun, In Ho Kwak; Korean Diabetes J. 1997;21(4):356-364. Published online January 1, 2001

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Abstract PDF: BACKGROUND
When insulin is secreted from the pancreas, a small amount of proinsulin is also secreted at the same time. Pancreatic beta cell may release immature granules richer in proinsulin contents as well as mature granules in the over-stirnulated state. The significance of hyperproinsulinemia was recently reevaluated in the pathogenesis of non-insulin dependent diabetes mellitus(NIDDM). We studied proinsulin response at fasting and oral glucose tolerance test(OGTT) in NIDDM with a simple and sensitive human proinsulin radioimmunoassay system. METHODS: 22 new onset non-obese NIDDM patients and 11 matched healthy controls were selected for the study. The NIDDM group was divided into 3 groups(group 1; 7.8, group 2; 7.8~11, group 3; 11.0 mmol/L) according to the fasting plasma glucose level. After an overnight fast, a 75 g OGTT was performed and samples were analyzed with proinsulin and specific human insulin radioimmunoassay kits. RESULTS: The basal serum proinsulin level was reported as 9.29+/-4.19 pmol/L in normal control and as 18.09+/-9.32 pmol/L(p=0.04, compared with control) in diabetic group. The values in NIDDM group 1 and 2(18.07+/-9.D2; p=0.04, 21.60+/-6.98; p=0.03) were higher than in control. The molar ratia of the basal proinsulin to total insulin were also increased in NIDDM group 1 and 2(0.24, 0.28) than in control subjmts(0.13, p=0.03). The basal proinsulin and proineulin/total insulin ratio were highest in the group 2(p 0,05, than group 3). During oral glucose loading, the proinsulin response increased more slowly than total insulin response. The proinsulin and proinsulin/ total insulin ratio during oral glucose loading were higher in NIDDM group 1 and group 2 than cantrols. CONCLUSION: The basal proinsulin level in diabetic group was higher than in normal control. The proinsulin responses during oral glucose loading were higher in diabetic group 1 and 2 than controls. The proinlulin response increased more slowly than total insulin response during oral glucose loading. So we conclude that the proinsulin secretion frorn pancreatic beta cell is impaired in diabetic group. The mechanism about the metabolic pathway of the proinsulin secretion should be studied more.

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