Frequency, Immunogenetics, and Clinical Characteristics of Latent Autoimmune Diabetes in China (LADA China Study)
Open accessAbstract
Adult non–insulin requiring diabetes includes latent autoimmune diabetes of adults (LADA), distinguished from type 2 diabetes by the presence of islet autoantibodies. LADA China determined the characteristics of Chinese LADA. This nationwide, multicenter, clinic-based cross-sectional study was conducted in 46 university-affiliated hospitals in 25 Chinese cities. All 4,880 ketosis-free diabetic patients (<1 year postdiagnosis, without insulin therapy for >6 months, aged ≥30 years) had GAD antibody (GADA) and HLA-DQ genotype measured centrally with clinical data collected locally. GADA-positive subjects were classified as LADA. Of the patients, 5.9% were GADA positive with LADA. LADA showed a north-south gradient. Compared with GADA-negative type 2 diabetes, LADA patients were leaner, with lower fasting C-peptide and less metabolic syndrome. Patients with high GADA titers are phenotypically different from those with low GADA titers, while only a higher HDL distinguished the latter from those with type 2 diabetes. HLA diabetes–susceptible haplotypes were more frequent in LADA, even in those with low-titer GADA. HLA diabetes-protective haplotypes were less frequent in LADA. Our study implicates universal immunogenetic effects, with some ethnic differences, in adult-onset autoimmune diabetes. Autoantibody positivity and titer could be important for LADA risk stratification and accurate therapeutic choice in clinical practice.
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The prevalence of several autoantibodies associated with type 1 diabetes mellitus tends to decrease with increasing age at diagnosis, but glutamic acid decarboxylase antibody remains the dominant autoantibody in adult-onset type 1 diabetes mellitus regardless of ethnicity.
“Although the prevalence of several autoantibodies associated with T1DM tends to decrease with increasing age at diagnosis61, GADA remains the dominant autoantibody in adult-onset T1DM regardless of ethnicity62–64.”
From The epidemiology of type 1 diabetes mellitus in older adults (2025) · cites this paper as [64]
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- Authors
- Zhou, Z., Xiang, Y., Ji, L., Jia, W., Ning, G., Huang, G., Yang, L., Lin, J., Liu, Z., Hagopian, W. A., Leslie, R. D., & on behalf of the LADA China Study Group
- Affiliations
- Central South University (CN)
- Peking University People's Hospital (CN)
- Shanghai Jiao Tong University (CN)
- University of Virginia Health System (US)
- Pacific Northwest Research Institute (US)
- Blizard Institute (GB)
- Corresponding author
- Zhou, Zhiguang
- ORCID
- Venue
- Diabetes
- Publisher
- American Diabetes Association
- Published
- 2013-01-17
- Volume
- 62
- Issue
- 2
- Pages
- 543-550
- ISSN
- 0012-1797 (ISSN-L)
- 1939-327X
- PMC
- PMC3554388
- OpenAlex
- W1991909333
- Cited by
- 251
- References
- 1
- Citations by year
- 2026: 12 · 2025: 13 · 2024: 14 · 2023: 12 · 2022: 31 · 2021: 22 · 2020: 22 · 2019: 24 · 2018: 24 · 2017: 19 · 2016: 18 · 2015: 13 · 2014: 15 · 2013: 11 · 2012: 1
- FWCI
- 7.69
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Diabetes (publishedVersion, cc-by-nc-nd)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Queen Mary Research Online (Queen Mary University of London) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
- Keywords
- latent autoimmune diabetes in adults, glutamic acid decarboxylase antibodies, HLA-DQ, islet autoantibodies, type 2 diabetes, HLA haplotypes, autoantibody titers, risk stratification, regional variation, Chinese population, metabolic syndrome, fasting C-peptide, HDL cholesterol
- MeSH terms
- Adult, Autoantibodies, C-Peptide, China, Cross-Sectional Studies, Diabetes Mellitus, Type 1, Diabetes Mellitus, Type 2, Female, Glutamate Decarboxylase, Haplotypes, HLA-DQ Antigens, Humans, Lipoproteins, HDL, Male, Middle Aged, Prediabetic State, Risk, Genetic Predisposition to Disease, Metabolic Syndrome
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