Background: A new ELISA for 65 kDa isoform of glutamic acid decarboxylase autoantibodies (GAD(65) Abs), which depends on GAD(65) Ab acting divalently and forming a bridge between immobilized GAD(65) and liquid-phase GAD(65)-biotin, is described.
Methods: Sera (25 microl) were incubated in GAD(65)-coated ELISA plate wells followed by washing and incubation with GAD(65)-biotin. After a further wash step, GAD(65)-biotin bound was quantitated by addition of streptavidin peroxidase followed by tetramethylbenzidine. Assay calibration was with WHO reference preparation 97/550.
Results: Using a cut-off for positivity of 5 units/ml, sera from 0.7% (2/300) healthy blood donors (HBDs), 100% (39/39) selected type 1 diabetes mellitus (DM) patients, 1.6% (1/62) type 2 diabetes mellitus patients and 3% (4/119) autoimmune disease controls were GAD(65) Ab positive in the ELISA. Levels of positivity in an immunoprecipitation assay (IPA) based on 125I-labelled GAD(65) (cut-off 25 units/ml) were 1%, 82%, 0% and 3%, respectively. ELISA inter-assay coefficients of variation (n=12) were 7.3%, 3.8%, 7.2% and 6.3% at 5.4, 40.8, 137 and 382 units/ml, respectively.
Conclusions: The ELISA we have described has sensitivity and specificity at least as high as current radioactive assays. It has good precision and handling making it suitable for routine use.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0009-8981(03)00088-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring the Needs and Preferences of Users and Parents to Design a Mobile App to Deliver Mental Health Peer Support to Adolescents With Type 1 Diabetes: Qualitative Study.
JMIR Diabetes
January 2025
Research Institute, BC Children's Hospital, Vancouver, BC, Canada.
Background: Beyond physical health, managing type 1 diabetes (T1D) also encompasses a psychological component, including diabetes distress, that is, the worries, fears, and frustrations associated with meeting self-care demands over the lifetime. While digital health solutions have been increasingly used to address emotional health in diabetes, these technologies may not uniformly meet the unique concerns and technological savvy across all age groups.
Objective: This study aimed to explore the mental health needs of adolescents with T1D, determine their preferred modalities for app-based mental health support, and identify desirable design features for peer-delivered mental health support modeled on an app designed for adults with T1D.
Fecal fatty acid profile reveals the therapeutic effect of red ginseng acidic polysaccharide on type 2 diabetes mellitus in rats.
J Food Sci
January 2025
Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China.
This study aimed to investigate the potential hypoglycemic mechanism of red ginseng acidic polysaccharides (RGAP) from the perspective of fatty acid (FA) regulation. A high-glucose/high-fat diet in conjunction with streptozotocin administration was employed to establish type 2 diabetes mellitus (T2DM) rat models, and their fecal FAs were detected using the liquid chromatography-mass spectrometry (LC-MS) method. RGAP treatment alleviated the polyphagia, polydipsia, weight loss, and hyperglycemia observed in T2DM rats.
View Article and Find Full Text PDFType 2 diabetes mellitus: A cross-sectional analysis of glycemic controls and brain health outcomes.
Appl Neuropsychol Adult
January 2025
Department of Psychology, Chung Shan Medical University, Taichung, Taiwan.
In this cross-sectional analysis, we explored how fluctuations in glycemic levels impact executive functions and psychosocial outcomes in patients with type 2 diabetes mellitus (T2DM). The goal was to understand the relationship between glycemic control and both neuropsychological and psychosocial health. We stratified participants into well-controlled and poorly controlled groups based on glycated hemoglobin (HbA1c) levels and variability, including a healthy control group for comparison.
View Article and Find Full Text PDFElastographic evaluation for fatty liver disease in north Indian children and adolescents with type 1 diabetes.
J Pediatr Endocrinol Metab
January 2025
Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh, India.
Objectives: The prevalence and predisposing factors to metabolic dysfunction-associated fatty liver disease (MAFLD) in children with type 1 Diabetes (T1D) living in developing countries are unknown.
Methods: A cross-sectional study was conducted in children with T1D. The presence of liver fat and tissue stiffness were assessed by ultrasonography and shear-wave elastography (SWE), respectively.
Cortical Gyrification and Cognitive Decline in the Human Brain With Type 2 Diabetes Mellitus.
Brain Behav
January 2025
Department of Radiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
Introduction: Type 2 diabetes mellitus (T2DM) is linked to abnormal brain structure and cognitive dysfunction. However, there is a lack of studies conducted to assess the impact of diabetes on cortical gyrification and cognition. The aim of this cross-sectional study was to assess the potential negative effects of glucose metabolism levels on cognition and cortical gyrification in T2DM.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!