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Kovacs A, Bunduc S, Veres DS, Palinkas D, Gagyi EB, Hegyi PJ, Eross B, Mihaly E, Hegyi P, Hosszufalusi N. One third of cases of new-onset diabetic ketosis in adults are associated with ketosis-prone type 2 diabetes-A systematic review and meta-analysis. Diabetes Metab Res Rev 2024; 40:e3743. [PMID: 37888894 DOI: 10.1002/dmrr.3743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 10/28/2023]
Abstract
AIMS Ketosis-prone type 2 diabetes was defined by the World Health Organization in 2019. According to the literature, the diagnosis is based on the presence of ketosis, islet autoantibody negativity and preserved insulin secretion. Our meta-analysis assessed the prevalence and clinical characteristics of ketosis-prone type 2 diabetes among patients hospitalised with diabetic ketoacidosis (DKA) or ketosis. METHODS The systematic search was performed in five main databases as of 15 October 2021 without restrictions. We calculated the pooled prevalence of ketosis-prone type 2 diabetes (exposed group) within the diabetic population under examination, patients with ketoacidosis or ketosis, to identify the clinical characteristics, and we compared it to type 1 diabetes (the comparator group). The random effects model provided pooled estimates as prevalence, odds ratio and mean difference (MD) with 95% confidence intervals. RESULTS Eleven articles were eligible for meta-analysis, thus incorporating 2010 patients of various ethnic backgrounds. Among patients presenting with DKA or ketosis at the onset of diabetes, 35% (95% CI: 24%-49%) had ketosis-prone type 2 diabetes. These patients were older (MD = 11.55 years; 95% CI: 5.5-17.6) and had a significantly higher body mass index (BMI) (MD = 5.48 kg/m2 ; 95% CI: 3.25-7.72) than those with type 1 diabetes. CONCLUSIONS Ketosis-prone type 2 diabetes accounts for one third of DKA or ketosis at the onset of diabetes in adults. These patients are characterised by islet autoantibody negativity and preserved insulin secretion. They are older and have a higher BMI compared with type 1 diabetes. C-peptide and diabetes-related autoantibody measurement is essential to identify this subgroup among patients with ketosis at the onset of diabetes.
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Affiliation(s)
- Adrienn Kovacs
- Department of Internal Medicine and Hematology, Semmelweis University, Budapest, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Stefania Bunduc
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Fundeni Clinical Institute, Bucharest, Romania
| | - Daniel S Veres
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Daniel Palinkas
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Department of Gastroenterology, Military Hospital-State Health Centre, Budapest, Hungary
| | - Endre B Gagyi
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Selye Janos Doctoral College for Advanced Studies, Semmelweis University, Budapest, Hungary
| | - Peter J Hegyi
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
| | - Balint Eross
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
| | - Emese Mihaly
- Department of Internal Medicine and Hematology, Semmelweis University, Budapest, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Peter Hegyi
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Nora Hosszufalusi
- Department of Internal Medicine and Hematology, Semmelweis University, Budapest, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
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Raubenheimer PJ, Skelton J, Peya B, Dave JA, Levitt NS. Phenotype and predictors of insulin independence in adults presenting with diabetic ketoacidosis: a prospective cohort study. Diabetologia 2024; 67:494-505. [PMID: 38240751 PMCID: PMC10844464 DOI: 10.1007/s00125-023-06067-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/06/2023] [Indexed: 02/06/2024]
Abstract
AIMS/HYPOTHESIS The aim of this work was to describe the phenotype of adults presenting with a first episode of diabetic ketoacidosis (DKA) in Cape Town, South Africa, and identify predictors of insulin independence at 12 and 60 months after presentation. METHODS A prospective, descriptive cohort study of all individuals, 18 years or older, presenting for the first time with DKA to four public-sector hospitals of the Groote Schuur Academic Health Complex was performed. Clinical, biochemical and laboratory data including GAD antibody and C-peptide status were collected at baseline. Insulin was systematically weaned and stopped in individuals who achieved normoglycaemia within the months after DKA. Individuals were followed for 12 months and then annually until 5 years after initial presentation with ketoacidosis. RESULTS Eighty-eight individuals newly diagnosed with diabetes when presenting with DKA were included and followed for 5 years. The mean ± SD age was 35±10 years and the median (IQR) BMI at diagnosis was 28.5 (23.3-33.4) kg/m2. Overall, 46% were insulin independent 12 months after diagnosis and 26% remained insulin independent 5 years after presentation. Forty-one participants (47%) tested negative for anti-GAD and anti-IA-2 antibodies and had C-peptide levels >0.3 nmol/l; in this group, 68% were insulin independent at 12 months and 37% at 5 years after diagnosis. The presence of acanthosis nigricans was strongly associated with insulin independence (OR 27.1 [95% CI 7.2, 102.2]; p<0.001); a positive antibody status was associated with a lower likelihood of insulin independence at 12 months (OR 0.10 [95% CI 0.03, 0.36]; p<0.001). On multivariable analysis only acanthosis (OR 11.5 [95% CI 2.5, 53.2]; p=0.004) was predictive of insulin independence 5 years after diagnosis. CONCLUSIONS/INTERPRETATION The predominant phenotype of adults presenting with a first episode of DKA in Cape Town, South Africa, was that of ketosis-prone type 2 diabetes. These individuals presented with obesity, acanthosis nigricans, negative antibodies and normal C-peptide and could potentially be weaned off insulin at follow-up. Classic type 1 diabetes (lower weight, antibody positivity, low or unrecordable C-peptide levels and long-term insulin dependence) was less common. The simple clinical sign of acanthosis nigricans is a strong predictor of insulin independence at 12 months and 5 years after initial presentation.
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Affiliation(s)
- Peter J Raubenheimer
- Division of Endocrinology, Department of Medicine, University of Cape Town, Cape Town, South Africa.
| | - Joanna Skelton
- Division of Endocrinology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Bukiwe Peya
- Division of Endocrinology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Joel A Dave
- Division of Endocrinology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Naomi S Levitt
- Division of Endocrinology, Department of Medicine, University of Cape Town, Cape Town, South Africa
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Redondo MJ, Harrall KK, Glueck DH, Tosur M, Uysal S, Muir A, Atkinson EG, Shapiro MR, Yu L, Winter WE, Weedon M, Brusko TM, Oram R, Vehik K, Hagopian W, Atkinson MA, Dabelea D. Diabetes Study of Children of Diverse Ethnicity and Race: Study design. Diabetes Metab Res Rev 2024; 40:e3744. [PMID: 37888801 PMCID: PMC10939959 DOI: 10.1002/dmrr.3744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/16/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
AIMS Determining diabetes type in children has become increasingly difficult due to an overlap in typical characteristics between type 1 diabetes (T1D) and type 2 diabetes (T2D). The Diabetes Study in Children of Diverse Ethnicity and Race (DISCOVER) programme is a National Institutes of Health (NIH)-supported multicenter, prospective, observational study that enrols children and adolescents with non-secondary diabetes. The primary aim of the study was to develop improved models to differentiate between T1D and T2D in diverse youth. MATERIALS AND METHODS The proposed models will evaluate the utility of three existing T1D genetic risk scores in combination with data on islet autoantibodies and other parameters typically available at the time of diabetes onset. Low non-fasting serum C-peptide (<0.6 nmol/L) between 3 and 10 years after diabetes diagnosis will be considered a biomarker for T1D as it reflects the loss of insulin secretion ability. Participating centres are enrolling youth (<19 years old) either with established diabetes (duration 3-10 years) for a cross-sectional evaluation or with recent onset diabetes (duration 3 weeks-15 months) for the longitudinal observation with annual visits for 3 years. Cross-sectional data will be used to develop models. Longitudinal data will be used to externally validate the best-fitting model. RESULTS The results are expected to improve the ability to classify diabetes type in a large and growing subset of children who have an unclear form of diabetes at diagnosis. CONCLUSIONS Accurate and timely classification of diabetes type will help establish the correct clinical management early in the course of the disease.
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Affiliation(s)
- Maria J. Redondo
- Diabetes and Endocrinology Division, Department of Pediatrics. Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, USA
| | - Kylie K. Harrall
- Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Deborah H. Glueck
- Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mustafa Tosur
- Diabetes and Endocrinology Division, Department of Pediatrics. Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, USA
- Children’s Nutrition Research Center, USDA/ARS, Houston, TX, USA
| | - Serife Uysal
- Diabetes and Endocrinology Division, Department of Pediatrics. Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, USA
| | - Andrew Muir
- Department of Pediatrics, Emory University, Atlanta, GA, USA
| | - Elizabeth G. Atkinson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Melanie R. Shapiro
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, USA
| | - Liping Yu
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine; Aurora, CO, USA
| | - William E. Winter
- Departments of Pathology and Pediatrics, University of Florida, Gainesville, FL, USA
| | - Michael Weedon
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Todd M. Brusko
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, USA
- Department of Pediatrics, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, USA
| | - Richard Oram
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Kendra Vehik
- Health Informatics Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | | | - Mark A. Atkinson
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, USA
- Department of Pediatrics, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, USA
| | - Dana Dabelea
- Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
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Min R, Xu Y, Peng B. The clinical value of glycosylated hemoglobin level in newly diagnosed ketosis-prone type 2 diabetes. Front Endocrinol (Lausanne) 2023; 14:1244008. [PMID: 38027130 PMCID: PMC10667908 DOI: 10.3389/fendo.2023.1244008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Objective To evaluate the clinical value of glycosylated hemoglobin (HbA1c) in newly diagnosed ketosis-prone type 2 diabetes (KPD). Methods A total of 330 patients with newly diagnosed type 2 diabetes (T2DM) hospitalized in our department with an average age of 48.72 ± 13.07 years old were selected and divided into T2DM group (193 cases) and KPD group (137 cases) according to whether they were combined with ketosis. According to the quartile level of HbA1c, they were divided into group A (HbA1c < 8.90%, 84 cases), group B (8.90%≤HbA1c < 10.70%, 86 cases), group C (10.70%≤HbA1c ≤ 12.40%, 85 cases) and group D (HbA1c > 12.40%, 75 cases). The general clinical features, laboratory indicators and islet function of each group were compared. Spearman correlation analysis was used to explore the correlation between HbA1c and β- Hydroxybutyric acid (β- HB) and islet function. ROC curve was used to analyze the sensitivity and specificity of HbA1c in diagnosing KPD, and the optimal tangent point was obtained. Results HbA1c, β-HB, FFA, RBG, insulin dosage, GSP, OGTT (0, 0.5, 1, 2, 3h) in KPD group were significantly higher than those in T2DM group (P< 0.001). HDL-C, IRT (0, 0.5, 1, 2, 3h), HOMA-β, HOMA-IR, HOMA-IS, ΔC30/ΔG30, AUC insulin were significantly lower than those in T2DM group (P< 0.001). With the increase of HbA1c level, the incidence of ketosis, β-HB, FFA and insulin dosage increased, while IRT (0, 0.5, 1, 2, 3h), ΔC30/ΔG30, AUC insulin, HOMA-β and HOMA-IS decreased accordingly (P< 0.001). In all newly diagnosed T2DM patients, Spearman correlation analysis showed that HbA1c was positively correlated with β-HB (r=0.539, P < 0.001), and was negatively correlated with HOMA-β (r=-0.564, P < 0.001), HOMA-IS (r=-0.517, P < 0.01, P < 0.001), HOMA-IR (r=-0.177, P < 0.001), ΔC30/ΔG30 (r=-0.427, P < 0.01) and AUC insulin (r=-0.581, P < 0.001). In ROC curve analysis, the optimal threshold for the diagnosis of KPD was 10.15%, Youden index was 0.616, area under the curve (AUC) was 0.882, sensitivity = 92.70%, specificity = 70.50%. Conclusion In newly diagnosed T2DM patients, if HbA1c > 10.15%, it is more likely to develop KPD. Monitoring HbA1c level is conducive to timely detection of high-risk individuals with KPD and taking appropriate measures to prevent the occurrence and development of the disease.
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Affiliation(s)
- Rui Min
- Department of Geriatrics, Wuhan Fourth Hospital, Wuhan, Hubei, China
| | - Yancheng Xu
- Department of Endocrinology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Bocheng Peng
- Department of Pain, Wuhan Fourth Hospital, Wuhan, Hubei, China
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Zheng J, Shen S, Xu H, Zhao Y, Hu Y, Xing Y, Song Y, Wu X. Development and validation of a multivariable risk prediction model for identifying ketosis-prone type 2 diabetes. J Diabetes 2023; 15:753-764. [PMID: 37165751 PMCID: PMC10509513 DOI: 10.1111/1753-0407.13407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/14/2023] [Accepted: 04/25/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND To develop and validate a multivariable risk prediction model for ketosis-prone type 2 diabetes mellitus (T2DM) based on clinical characteristics. METHODS A total of 964 participants newly diagnosed with T2DM were enrolled in the modeling and validation cohort. Baseline clinical data were collected and analyzed. Multivariable logistic regression analysis was performed to select independent risk factors, develop the prediction model, and construct the nomogram. The model's reliability and validity were checked using the receiver operating characteristic curve and the calibration curve. RESULTS A high morbidity of ketosis-prone T2DM was observed (20.2%), who presented as lower age and fasting C-peptide, and higher free fatty acids, glycated hemoglobin A1c and urinary protein. Based on these five independent influence factors, we developed a risk prediction model for ketosis-prone T2DM and constructed the nomogram. Areas under the curve of the modeling and validation cohorts were 0.806 (95% confidence interval [CI]: 0.760-0.851) and 0.856 (95% CI: 0.803-0.908). The calibration curves that were both internally and externally checked indicated that the projected results were reasonably close to the actual values. CONCLUSIONS Our study provided an effective clinical risk prediction model for ketosis-prone T2DM, which could help for precise classification and management.
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Affiliation(s)
- Jia Zheng
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Shiyi Shen
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Hanwen Xu
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Yu Zhao
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Ye Hu
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Yubo Xing
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Yingxiang Song
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
| | - Xiaohong Wu
- Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of EndocrinologyZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouPeople's Republic of China
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Jiang Y, Zhu J, Lai X. Development and Validation of a Risk Prediction Model for Ketosis-Prone Type 2 Diabetes Mellitus Among Patients Newly Diagnosed with Type 2 Diabetes Mellitus in China. Diabetes Metab Syndr Obes 2023; 16:2491-2502. [PMID: 37614378 PMCID: PMC10443636 DOI: 10.2147/dmso.s424267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/05/2023] [Indexed: 08/25/2023] Open
Abstract
Background We established a nomogram for ketosis-prone type 2 diabetes mellitus (KP-T2DM) in the Chinese adult population in order to identify high-risk groups early and intervene in the disease progression in a timely manner. Methods We reviewed the medical records of 924 adults with newly diagnosed T2DM from January 2018 to June 2021. All patients were randomly divided into the training and validation sets at a ratio of 7:3. The least absolute shrinkage and selection operator regression analysis method was used to screen the predictors of the training set, and the multivariable logistic regression analysis was used to establish the nomogram prediction model. We verified the prediction model using the receiver operating characteristic (ROC) curve, judged the model's goodness-of-fit using the Hosmer-Lemeshow goodness-of-fit test, and predicted the risk of ketosis using the decision curve analysis. Results A total of 21 variables were analyzed, and four predictors-hemoglobin A1C, 2-hour postprandial blood glucose, 2-hour postprandial C-peptide, and age-were established. The area under the ROC curve for the training and validation sets were 0.8172 and 0.8084, respectively. The Hosmer-Lemeshow test showed that the prediction model and validation set have a high degree of fit. The decision curve analysis curve showed that the nomogram had better clinical applicability when the threshold probability of the patients was 0.03-0.79. Conclusion The nomogram based on hemoglobin A1C, 2-hour postprandial blood glucose, 2-hour postprandial C-peptide, and age has good performance and can serve as a favorable tool for clinicians to predict KP-T2DM.
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Affiliation(s)
- Yanjuan Jiang
- Department of Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Jianting Zhu
- Department of Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Xiaoyang Lai
- Department of Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
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Kikani N, Balasubramanyam A. Remission in Ketosis-Prone Diabetes. Endocrinol Metab Clin North Am 2023; 52:165-174. [PMID: 36754492 DOI: 10.1016/j.ecl.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Heterogeneous forms of Ketosis-prone diabetes (KPD) are characterized by patients who present with diabetic ketoacidosis (DKA) but lack the typical features and biomarkers of autoimmune T1D. The A-β+ subgroup of KPD provides unique insight into the concept of "remission" since these patients have substantial preservation of beta-cell function permitting the discontinuation of insulin therapy, despite initial presentation with DKA. Measurements of C-peptide levels are essential to predict remission and guide potential insulin withdrawal. Further studies into predictors of remission and relapse can help us guide patients with A-β+ KPD toward remission and develop targeted treatments for this form of atypical diabetes.
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Affiliation(s)
- Nupur Kikani
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Unit 1461, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Ashok Balasubramanyam
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, BCM 179A, One Baylor Plaza, Houston, TX 77030, USA.
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Patil SP. Atypical Diabetes and Management Considerations. Prim Care 2022; 49:225-237. [DOI: 10.1016/j.pop.2021.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gupta RD, Atri A, Mondal S, Bhattacharjee A, Garai R, Hazra AK, Choudhury B, Dutta DS, Lodh M, Ganguly A. Characterizing progressive beta-cell recovery after new-onset DKA in COVID-19 provoked A-β+ KPD (ketosis-prone diabetes): A prospective study from Eastern India. J Diabetes Complications 2022; 36:108100. [PMID: 34916147 PMCID: PMC8656268 DOI: 10.1016/j.jdiacomp.2021.108100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/25/2021] [Accepted: 11/27/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Recent literature suggests a bi-directional relationship between COVID-19 infection and diabetes mellitus, with an increasing number of previously normoglycemic adults with COVID-19 being admitted with new-onset diabetic ketoacidosis (DKA). However, the possibility of COVID-19 being a potential trigger for A-β + ketosis-prone diabetes (KPD) in these patients needs elucidation. Our study aimed at analyzing such a cohort of patients and determining their natural course of β-cell recovery on serial follow-up. METHODS After initial screening, n = 42 previously non-diabetic patients with new-onset DKA and RT-PCR positive COVID-19, were included in our ten-month follow-up study. Of these, n = 22 were negative (suspected A-β + KPD) and n = 20 were positive (Type 1A DM) for autoantibodies (GAD/IA-2/ZnT8). Subsequently, n = 19 suspected KPD and n = 18 Type 1A DM patients were followed-up over ten months with serial assessments of clinical, biochemical and β-cell secretion. Amongst the former, n = 15 (79%) patients achieved insulin independence, while n = 4 (21%) continued to require insulin at ten-months follow-up. RESULTS On comparison, the suspected KPD patients showed significantly greater BMI, age, Hba1c, IL-6 and worse DKA parameters at presentation. Serial C-peptide estimations demonstrated significant β-cell recovery in KPD group, with complete recovery seen in the 15 patients who became insulin independent on follow-up. Younger age, lower BMI, initial severity of DKA and inflammation (IL-6 levels), along-with reduced 25-hydroxy-Vitamin-D levels were associated with poorer recovery of β-cell secretion at ten-month follow-up amongst the KPD patients, CONCLUSIONS: This is the first prospective study to demonstrate progressive recovery of β-cell secretion in new-onset A-β + KPD provoked by COVID-19 infection in Indian adults, with a distinctly different profile from Type 1A DM. Given their significant potential for β-cell recovery, meticulous follow-up involving C-peptide estimations can help guide treatment and avoid injudicious use of insulin.
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Affiliation(s)
- Riddhi Das Gupta
- Department of Endocrinology and Metabolism, HealthWorld Hospitals, Durgapur, India.
| | - Avica Atri
- Christian Medical College, Vellore, Tamil Nadu, India
| | - Sunetra Mondal
- Department of Endocrinology and Metabolism, HealthWorld Hospitals, Durgapur, India
| | | | - Ramprasad Garai
- Department of Critical Care Medicine, HealthWorld Hospitals, Durgapur, India
| | - Arindam Kumar Hazra
- Department of Critical Care Medicine, HealthWorld Hospitals, Durgapur, India
| | - Brojen Choudhury
- Department of Critical Care Medicine, HealthWorld Hospitals, Durgapur, India
| | - Dhriti Sundar Dutta
- Department of Critical Care Medicine, HealthWorld Hospitals, Durgapur, India
| | - Moushumi Lodh
- Department of Biochemistry, HealthWorld Hospitals, Durgapur, India
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Wang Y, Lu C, Augusto Monteiro Cardoso Lopes M, Chen L, Luo Y, Wu W, Gu X. A Cross-Sectional Study of Atherosclerosis in Newly Diagnosed Patients with Ketosis-Prone Type 2 Diabetes. Diabetes Metab Syndr Obes 2022; 15:933-941. [PMID: 35370412 PMCID: PMC8965103 DOI: 10.2147/dmso.s349467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/07/2022] [Indexed: 12/05/2022] Open
Abstract
PURPOSE To investigate the prevalence, clinical and metabolic characteristics of atherosclerosis (AS) in newly diagnosed patients with ketosis-prone type 2 diabetes (KPT2D) or non-ketotic type 2 diabetes (NKPT2D). PATIENTS AND METHODS About 1072 subjects with non-autoimmune new-onset diabetes were included in the cross-sectional study. Patients were classified as non-ketotic type 2 diabetes (NKPT2D, n = 662) or ketosis-prone type 2 diabetes (KPT2D, n = 410). Blood samples were collected to determine the levels of glucose, HbA1c, insulin and C-peptide. Routine liver and kidney function tests were also performed. AS was determined by vascular ultrasonography. RESULTS The levels of fasting blood glucose and HbA1c were significant higher in the KPT2D group when compared to the NKPT2D group (P<0.001). The levels of fasting C-peptide, 2 h C-peptide and HOMA-β were lower in the KPT2D group than those in NKPT2D group (P<0.001). However, no significant difference was observed for HOMA-IR between the two groups. The onset age of the patients with KPT2D was significantly lower compared to NKPT2D patients (38±13 vs 49±14, P<0.001). After adjusting age of the two groups, the KPT2D patients had a higher prevalence of AS compared to the NKPT2D patients (31.4% vs 21.1%, P=0.005). In both groups, age and gender were independent risk factors for AS, whereas estimated glomerular filtration rate (eGFR) was an independent risk factor in the NKPT2D patients and 2-h postprandial plasma glucose (2h-PPG) was an independent risk factor in the KPT2D patients. CONCLUSION AS was more prevalent in KPT2D patients compared to the NKPT2D cohort, which was independent of age and gender. These data suggest that KPT2D patients may have a higher risk of macrovascular complications compared to NKPT2D of the same age.
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Affiliation(s)
- Yuxia Wang
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Chaoyin Lu
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- Department of Endocrinology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, People’s Republic of China
| | | | - Lingqiao Chen
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Yan Luo
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Wenjun Wu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Xuemei Gu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First Clinical School of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- Correspondence: Xuemei Gu, Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Road, Wenzhou, 325006, People’s Republic of China, Tel +86-577-55579385, Fax +86-577-88069555, Email
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Redondo MJ, Balasubramanyam A. Toward an Improved Classification of Type 2 Diabetes: Lessons From Research into the Heterogeneity of a Complex Disease. J Clin Endocrinol Metab 2021; 106:e4822-e4833. [PMID: 34291809 PMCID: PMC8787852 DOI: 10.1210/clinem/dgab545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Accumulating evidence indicates that type 2 diabetes (T2D) is phenotypically heterogeneous. Defining and classifying variant forms of T2D are priorities to better understand its pathophysiology and usher clinical practice into an era of "precision diabetes." EVIDENCE ACQUISITION AND METHODS We reviewed literature related to heterogeneity of T2D over the past 5 decades and identified a range of phenotypic variants of T2D. Their descriptions expose inadequacies in current classification systems. We attempt to link phenotypically diverse forms to pathophysiology, explore investigative methods that have characterized "atypical" forms of T2D on an etiological basis, and review conceptual frameworks for an improved taxonomy. Finally, we propose future directions to achieve the goal of an etiological classification of T2D. EVIDENCE SYNTHESIS Differences among ethnic and racial groups were early observations of phenotypic heterogeneity. Investigations that uncover complex interactions of pathophysiologic pathways leading to T2D are supported by epidemiological and clinical differences between the sexes and between adult and youth-onset T2D. Approaches to an etiological classification are illustrated by investigations of atypical forms of T2D, such as monogenic diabetes and syndromes of ketosis-prone diabetes. Conceptual frameworks that accommodate heterogeneity in T2D include an overlap between known diabetes types, a "palette" model integrated with a "threshold hypothesis," and a spectrum model of atypical diabetes. CONCLUSION The heterogeneity of T2D demands an improved, etiological classification scheme. Excellent phenotypic descriptions of emerging syndromes in different populations, continued clinical and molecular investigations of atypical forms of diabetes, and useful conceptual models can be utilized to achieve this important goal.
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Affiliation(s)
- Maria J Redondo
- Section of Diabetes and Endocrinology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
- Texas Children’s Hospital, Houston, TX 77030, USA
| | - Ashok Balasubramanyam
- Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine, Houston, TX 77030, USA
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12
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Waddankeri SS, Swaraj Waddankeri M, Gurushantappa Mangshetty B. Clinical and Biochemical Characteristics and Treatment Outcomes of Ketosis-Prone Diabetes: The Remission Prone Diabetes. Int J Endocrinol Metab 2021; 19:e106799. [PMID: 34149844 PMCID: PMC8198612 DOI: 10.5812/ijem.106799] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/22/2020] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Diabetic ketoacidosis (DKA) is one of the severe acute complications of diabetes. It has long been considered a key clinical characteristic of type 1 diabetes mellitus (T1DM) with severe and irreversible deficient insulin levels. Ketosis-prone diabetes (KPD) has pathophysiology close to T2DM but shows signs and symptoms associated with T1DM. In general, patients with ketosis-prone diabetes display elevated glucose and ketone levels; also, a higher hemoglobin A1C than conventional T2DM. OBJECTIVES The current research aimed to elucidate the clinical presentation and outline a management plan for KPD in the Indian population. METHODS The present case series is a descriptive, prospective, and observational case series on six unprovoked cases of KPD. They were managed using the standard protocol of DKA management. RESULTS The recruited cases followed a set pattern of very high insulin requirement at diagnosis. On follow-up, the insulin requirement progressively declined, and all of the cases were able to stop insulin therapy after a mean period of four weeks. None of the cases presented any organ damage at diagnosis. There was no recurrence of DKA during the two-year follow-up. All of the cases had normal liver and renal functions. Autoantibodies were negative in all of the cases. CONCLUSIONS Ketosis-prone diabetes is the most under-recognized and under-diagnosed among all types of diabetes. Its recognition is of utmost importance as the approach of its treatment varies widely from that of the conventional type of diabetes. Proper follow-up, especially in unprovoked cases of DKA with obese phenotype, could help elucidate this rare entity of KPD where insulin can be stopped and maintain normoglycemia for a substantial period without insulin.
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Affiliation(s)
- Swaraj Shrikant Waddankeri
- Department of Medicine, Division of Diabetes and Endocrinology, M R Medical College, Kalaburgi, India
- Corresponding Author: Department of Medicine, Division of Diabetes and Endocrinology, M R Medical College, Kalaburgi, India.
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13
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Ye S, Ran H, Zhang H, Wu H, Li W, Du S, Su Q. Elevated Serum Triglycerides are Associated with Ketosis-Prone Type 2 Diabetes in Young Individuals. Diabetes Metab Syndr Obes 2021; 14:497-504. [PMID: 33568926 PMCID: PMC7869714 DOI: 10.2147/dmso.s296085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/20/2021] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Ketosis-prone type 2 diabetes (KPT2D) is increasingly recognized in young adults. However, the role of blood lipids in KPT2D, especially serum triglycerides (TGs), is not yet clearly understood. PATIENTS AND METHODS We retrospectively evaluated 409 young patients diagnosed with KPT2D or classical type 2 diabetes (T2D) attending an academic tertiary hospital. Clinical characteristics and laboratory findings were compared between KPT2D and T2D patients. ANOVA or a non-parametric test analyses were used to evaluate differences in clinical characteristics and laboratory findings. Multivariate regression analyses and stratified analyses were used to further investigate differences in serum TGs levels between KPT2D and T2D individuals. RESULTS KPT2D is a subtype of T2D with traits of overweight or obesity. However, hyperglycemia and impaired β-cell functions were more severe in KPT2D patients. Serum TGs levels were significantly higher (P = 0.0003) in KPT2D individuals. Furthermore, the proportion of very high serum TGs levels was 6-fold higher (P < 0.0001) in KPT2D than in T2D patients. Elevated serum TGs were associated with young KPT2D patients. CONCLUSION Lifestyle changes as well as lipid-lowering treatments might be effective in lowering the incidence of ketosis as well as stabilizing disease progression.
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Affiliation(s)
- Shu Ye
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Hui Ran
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Hongmei Zhang
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Hui Wu
- Department of Endocrinology, Zhejiang Provincial People’s Hospital, Hangzhou Medical College, Hangzhou, 310014, People’s Republic of China
| | - Wen Li
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Shichun Du
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
- Correspondence: Shichun Du Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kong Jiang Road 1665#, Shanghai, 200092, People’s Republic of China Email
| | - Qing Su
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
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14
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Abstract
An etiologically based classification of diabetes is needed to account for the heterogeneity of type 1 and type 2 diabetes (T1D and T2D) and emerging forms of diabetes worldwide. It may be productive for both classification and clinical discovery to consider variant forms of diabetes as a spectrum. Maturity onset diabetes of youth and neonatal diabetes serve as models for etiologically defined, rare forms of diabetes in the spectrum. Ketosis-prone diabetes is a model for more complex forms, amenable to phenotypic dissection. Bioinformatic approaches such as clustering analyses of large datasets and multi-omics investigations of rare and atypical phenotypes are promising avenues to explore and define new subgroups of diabetes.
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Affiliation(s)
- Ashok Balasubramanyam
- Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine, Houston, Texas 77030, USA;
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15
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Satomura A, Oikawa Y, Haisa A, Inoue I, Noda M, Shimada A. Bodyweight threshold for sudden onset of ketosis might exist in ketosis-prone type 2 diabetes patients. J Diabetes Investig 2020; 11:499-501. [PMID: 31339666 PMCID: PMC7078091 DOI: 10.1111/jdi.13120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/21/2019] [Accepted: 07/22/2019] [Indexed: 11/27/2022] Open
Abstract
Ketosis-prone type 2 diabetes is recognized as atypical diabetes. These patients are often male, characterized by obesity, sudden onset of ketosis and a transient decrease in insulin secretion capacity that can be recovered with temporal insulin therapy. Here, we report a male patient with ketosis-prone type 2 diabetes who was followed up for 8 years. During the follow-up period, his bodyweight fluctuated and he experienced four episodes of critical ketosis recurrence in association with bodyweight gain. He discontinued insulin therapy after each ketosis episode within the first 4 years, but thereafter, he had to continue insulin therapy because of decreased insulin secretion capacity. Interestingly, his peak bodyweight just before the repeated ketosis episode gradually decreased, and the insulin secretion capacity after the recovery from repeated ketosis decreased in parallel with his peak bodyweight. This long-term clinical course might be a clue to understand the pathophysiology of ketosis-prone type 2 diabetes.
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Affiliation(s)
- Atsushi Satomura
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
| | - Yoichi Oikawa
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
| | - Akifumi Haisa
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
| | - Ikuo Inoue
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
| | - Mitsuhiko Noda
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
| | - Akira Shimada
- Department of Endocrinology and DiabetesSchool of MedicineSaitama Medical UniversitySaitamaJapan
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16
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Du S, Zhang H, Wu H, Ye S, Li W, Su Q. Prevalence and Gender Differences of Metabolic Syndrome in Young Ketosis-Prone Type 2 Diabetic Individuals: A Retrospective Study. Diabetes Metab Syndr Obes 2020; 13:2719-2727. [PMID: 32801818 PMCID: PMC7413718 DOI: 10.2147/dmso.s252492] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/08/2020] [Indexed: 12/20/2022] Open
Abstract
PURPOSE This study aimed to identify the prevalence and gender differences of metabolic syndrome in young new-onset ketosis-prone type 2 diabetic (KPT2D) individuals. PATIENTS AND METHODS A retrospective study was conducted in Shanghai Xin Hua Hospital from 2007 to 2019. A total of 304 patients from 12 to 40 years of age with newly diagnosed diabetes presenting with ketosis were analyzed. The clinical features and laboratory results of KPT2D and type 1 diabetic (T1D) individuals were compared. Prevalence and gender differences of metabolic syndrome in the KPT2D subjects were analyzed. RESULTS The prevalence of metabolic syndrome (P < 0.0001) was significantly higher in young KPT2D than T1D subjects. The prevalence of high blood pressure (P < 0.0001), central obesity (P < 0.0001), low plasma HDL-C concentration (P = 0.045), and hypertriglyceridemia (P < 0.0001) was elevated in the KPT2D subjects compared with T1D. Male predominance (89%) was presented in the KPT2D subjects. The prevalence of metabolic syndrome (P = 0.0002) was significantly higher in young male than female KPT2D subjects. The presence of central obesity (P < 0.0001) and high blood pressure (P =0.03) was higher in male KPT2D subjects than female. The presence of serum triglyceride concentrations ≥ 2.3mmol/L was significantly higher (P = 0.011) in male KPT2D subjects than female. CONCLUSION Significantly higher prevalence of metabolic syndrome in young KPT2D patients compared with T1D patients could be an important reference for diabetic differential diagnosis. KPT2D presented a higher predominance in young males, who had higher prevalence of metabolic syndrome than young females.
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Affiliation(s)
- Shichun Du
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Hongmei Zhang
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Hui Wu
- Department of Endocrinology, Zhejiang Provincial People’s Hospital, Hangzhou Medical College, Hangzhou310014, People’s Republic of China
| | - Shu Ye
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Wen Li
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
| | - Qing Su
- Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, People’s Republic of China
- Correspondence: Qing Su Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kong Jiang Road 1665#, Shanghai200092, People’s Republic of China Tel/Fax +86 2125077538 Email
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Catarino D, Silva D, Guiomar J, Ribeiro C, Ruas L, Cardoso L, Paiva I. Non-immune-mediated versus immune-mediated type 1 diabetes: diagnosis and long-term differences-retrospective analysis. Diabetol Metab Syndr 2020; 12:56. [PMID: 32647539 PMCID: PMC7336466 DOI: 10.1186/s13098-020-00563-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/25/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The American Diabetes Association proposed two subcategories for type 1 diabetes mellitus: type 1A or immune-mediated diabetes (IDM) and type 1B or idiopathic diabetes. The absence of β-cell autoimmune markers, permanent insulinopenia and prone to ketoacidosis define the second category, whose pathogenesis remains unclear. Only a minority of patients fall into this category, also designated non-immune-mediated (NIDM), which is considered by several authors similar to type 2 diabetes. The aim of this study is to evaluate differences at the diagnosis and 10 years later of two categories. METHODS Retrospective cohort study of patients with β-cell autoimmune markers performed at diagnosis and undetectable c-peptide. Were excluded patients with suspicion of another specific type of diabetes. We obtained two groups: IDM (≥ 1 positive antibody) and NIDM (negative antibodies). Age, family history, anthropometry, duration of symptoms, clinical presentation, blood glucose at admission, A1C, lipid profile, arterial hypertension, total diary insulin dose (TDID), microvascular and macrovascular complications were evaluated. Results were considered statistically significant with p < 0.05. RESULTS 37 patients, 29 with IDM and 8 patients with NIDM. The age of diagnosis of IDM group (23 years) was significantly different (p = 0.004) from the NIDM group (38.1). The body mass index (BMI) at the diagnosis did not differ significantly (p = 0.435). The duration of symptoms was longer in the NIDM (p = 0.003). The disease presentation (p = 0.744), blood glucose (p = 0.482) and HbA1c (p = 0.794) at admission and TDID at discharge (p = 0.301) did not differ significantly. Total and LDL cholesterol levels were higher in NIDM group but did not differ significantly (p = 0.585 and p = 0.579, respectively). After 10 years BMI did not differ between groups (p = 0.079). Patients with IDM showed a significantly higher HbA1c (p = 0.008) and TDID (p = 0.017). Relative to the lipid profile, there was no significant difference, however the LDL cholesterol and triglycerides were higher on the NIDM group, as the percentage of hypertension. Microvascular complications were higher in the IDM group, but no significant difference was found. CONCLUSION Patients with IDM had a poor metabolic control and higher insulin requirement. Patients with NIDM were older and showed higher cardiovascular risk, resembling a clinical phenotype of type 2 diabetes.
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Affiliation(s)
- Diana Catarino
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - Diana Silva
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - Joana Guiomar
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - Cristina Ribeiro
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - Luísa Ruas
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - Luís Cardoso
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
- Medicine Faculty of Coimbra University, Coimbra, Portugal
| | - Isabel Paiva
- Endocrinology, Diabetes and Metabolism Department, Centro Hospitalar e Universitário de Coimbra EPE, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
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Abstract
RATIONALE In recent years, there are more new insights into the clinical susceptibility, pathophysiological mechanism, and progression of classification and treatment of ketosis-prone diabetes mellitus (KPDM), which was once described as Idiopathic Type 1 Diabetes, Type 1B Diabetes or Flatbush Diabetes. ketosis-prone diabetes mellitus is still a heterogeneous syndrome reported in African-American or western Sub-Sahara-African, Hispanic descendant, and recently in Asian. PATIENT CONCERNS An obese 17-year-old student was admitted to a tertiary referral hospital (teaching hospital), presenting with thirst, polyuria fatigue, and a 9 kg weight loss in the preceding two weeks. DIAGNOSES Physical examination showed body mass index (BMI) was 32.77 kg/m, arterial blood gas revealed a pH of 7.31. Serum glucose was 27.8 mmol/L with strong positive uric ketones (++++). Hemoglobin A1c (HbA1c) was 13.6%. The glucose disposal ratio (GDR) during the steady-state of euglycemic clamp test was 5.62 mg/kg/min and M value was 2.87 mg/kg/min during hyperglycemic clamp test. Those findings were sufficient to establish a diagnosis of ketosis-prone diabetes mellitus. INTERVENTIONS This obese patient with KPDM received intensive insulin therapy and fluids infusion, and during the remainder of hospitalization his insulin requirement was approximately 1.5 U per kilogram of body weight per day. Blood glucose monitoring was rigorous until the diabetic ketoacidosis under control. OUTCOMES He achieved the near-nomalglycemic remission uneventfully. At 12-month follow-up, his treatment was adjusted from insulin subcutaneous injection to oral hypoglycemic drugs. LESSON The present study of this obese adolescent with negative auto-antibodies but unprovoked diabetic ketoacidosis and partially preserved beta cell functional reserve after the acute of diabetic ketosis suggested that he has the phenotype of "A-β" KPDM. Further study of this syndrome will help illustrate the inadequacy of current classification and targeted therapies.
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Affiliation(s)
- Huiwen Tan
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu
| | - Chun Wang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu
| | - Yerong Yu
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu
- Laboratory of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, PR China
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Wang J, Zhang M, Liu Z, Wang X, Pang Y, Lu Y, Liu Z. Heterogeneous clinical features of ketosis-prone type 2 diabetes mellitus patients: gender, age, loss of weight and HbA1c. MINERVA ENDOCRINOL 2018; 44:351-356. [PMID: 30482009 DOI: 10.23736/s0391-1977.18.02925-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The aim of this study was to observe the clinical features of type 2 diabetes mellitus (T2DM) patients with ketosis as the initial symptom, and investigate its differences from clinical features of non-ketotic T2DM patients. METHODS A total of 385 T2DM patients treated in our hospital from 2014 to 2017 were selected and divided into ketosis-prone T2DM group and non-ketotic T2DM group. Ketosis-prone T2DM patients refer to DM patients with the urine ketone body++ or above or the blood ketone body ≥1.0 mmol/L when treated. Fasting venous blood was collected from all patients in the early morning at 2 d after admission to detect the liver function, renal function, blood glucose, triglyceride, total cholesterol, glycosylated hemoglobin and fasting C-peptide, glutamic acid decarboxylase antibody (GAD-Ab) and islet cell antibody (ICA) were also detected, and the 24 h urine specimen was retained to detect the 24 h urine microalbumin excretion rate. RESULTS The proportion of male in ketosis-prone T2DM group was significantly higher than that in non-ketotic T2DM group (P<0.01). Patients in ketosis-prone T2DM group was younger than those in non-ketotic T2DM group (P<0.05). The number of days from initial symptom to treatment in ketosis-prone T2DM group was smaller than that in non-ketotic T2DM group (P<0.05). The fasting C-peptide level in ketosis-prone T2DM group was significantly lower than that in non-ketotic T2DM group (P<0.05). The degree of weight loss and level of glycosylated hemoglobin in ketosis-prone T2DM group were significantly higher than those in non-ketotic T2DM group (P<0.05). CONCLUSIONS Ketosis-prone T2DM patients are characterized by lower age at onset, higher proportion of male, shorter duration of disease, poorer islet function, higher blood glucose and more significant weight loss than non-ketotic T2DM patients.
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Affiliation(s)
- Juan Wang
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Meixiang Zhang
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Zhenzhen Liu
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Xiujie Wang
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Yuanxin Pang
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Ye Lu
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China
| | - Zhengqing Liu
- Unit of Endocrinology, Department of Rheumatism, the First People's Hospital of Wujiang District Suzhou, Suzhou, China -
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20
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Abstract
PURPOSE OF REVIEW Ketosis-prone diabetes or Flatbush diabetes has been widely recognized as a clinical entity since 1984. Most of the early clinical studies focused on African American or Afro-Caribbean individuals. It is now being recognized as an important clinical entity in sub-Saharan Africans, Asian and Indian populations, and Hispanic populations. Major questions remain as to its pathogenesis and whether it is a unique type of diabetes or a subset of more severe type 2 diabetes with greater loss of insulin action in target tissues. This review summarizes the main clinical and mechanistic studies to improve the understanding of ketosis-prone (Flatbush) diabetes. RECENT FINDINGS Little data are available on the magnitude of KPD in the different susceptible populations. It is relatively common in black populations. KPD is defined as a syndrome in which diabetes commences with ketoacidosis in individuals who are GAD and anti-islet cell antibody negative and have no known precipitating causes. The patients present during middle age, are overweight or mildly obese, and in many reports are more likely to be male. After intensive initial insulin therapy, many patients become insulin independent and can be well controlled on diet alone or diet plus oral medications. The clinical course of KPD is like that of patients with type 2 diabetes rather than that of type 1 diabetes. Little differences are found in the clinical characteristics and clinical outcomes between patients presenting with KPD and those presenting with severe hyperglycemia with no ketoacidosis. The mechanisms responsible for the development of ketosis-prone diabetes as well its remission remain unknown.
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Affiliation(s)
- Harold E. Lebovitz
- 0000 0001 0693 2202grid.262863.bDivision of Endocrinology, Department of Medicine, State University of New York Health Science Center at Brooklyn, 450 Clarkson Ave., Box 1205, Brooklyn, NY 11203 USA
| | - Mary Ann Banerji
- 0000 0001 0693 2202grid.262863.bDivision of Endocrinology, Department of Medicine, State University of New York Health Science Center at Brooklyn, 450 Clarkson Ave., Box 1205, Brooklyn, NY 11203 USA
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