scholarly journals Implication of CytotoxicHelicobacter pyloriInfection in Autoimmune Diabetes

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Alessandro P. Delitala ◽  
Giovanni M. Pes ◽  
Hoda M. Malaty ◽  
Gavino Pisanu ◽  
Giuseppe Delitala ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Helicobacter Pylori ◽  
Late Onset ◽  
Autoimmune Diabetes ◽  
Igg Antibodies ◽  
Latent Autoimmune Diabetes ◽  
H Pylori

Background.Type 1 diabetes (T1D) and type 2 diabetes (T2D) have been linked toHelicobacter pyloriinfection, although results are conflicting. No previous study addressed a possible link betweenH. pyloriinfection and latent autoimmune diabetes in adults (LADA). In this study, a correlation amongH. pyloriinfection and the risk of autoimmune diabetes in comparison with T2D was investigated.Methods.Sera from 234 LADA patients, 105 patients with late-onset T1D, and 156 patients with T2D were analyzed for anti-H. pyloriand the cytotoxin-associated antigen (CagA) IgG antibodies. Results. H. pyloriseroprevalence was comparable in LADA (52%), late-onset T1D (45%), and T2D (49%) with no gender differences. The seroprevalence of CagA IgG was significantly higher in autoimmune diabetes (late-onset T1D: 45%, LADA: 40%) compared to T2D (25%;p<0.028).Conclusions.AlthoughH. pyloriseroprevalence was similar in LADA, T1D, and T2D, anti-CagA positivity was significantly increased among patients with autoimmune diabetes, suggesting that more virulentH. pyloristrains might be a trigger for immune mechanisms involved in their pathogenesis.

Type 1 Diabetes-related Autoantibodies in Different Forms of Diabetes

2019 ◽  
Vol 15 (3) ◽  
pp. 199-204 ◽  
Author(s):  
Elin Pettersen Sørgjerd
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Autoimmune Diabetes ◽  
Acid Decarboxylase ◽  
Adult Onset ◽  
Latent Autoimmune Diabetes ◽  
Childhood Type 1 Diabetes ◽  
Childhood Type

Autoantibodies against Glutamic Acid Decarboxylase (GADA), insulinoma antigen-2 (IA- 2A), insulin (IAA) and the most recently Zinc Transporter 8 (ZnT8A) are one of the most reliable biomarkers for autoimmune diabetes in both children and adults. They are today the only biomarkers that can distinguish Latent Autoimmune Diabetes in Adults (LADA) from phenotypically type 2 diabetes. As the frequency of autoantibodies at diagnosis in childhood type 1 diabetes depends on age, GADA is by far the most common in adult onset autoimmune diabetes, especially LADA. Being multiple autoantibody positive have also shown to be more common in childhood diabetes compared to adult onset diabetes, and multiple autoantibody positivity have a high predictive value of childhood type 1 diabetes. Autoantibodies have shown inconsistent results to predict diabetes in adults. Levels of autoantibodies are reported to cause heterogeneity in LADA. Reports indicate that individuals with high levels of autoantibodies have a more type 1 diabetes like phenotype and individuals with low levels of autoantibody positivity have a more type 2 diabetes like phenotype. It is also well known that autoantibody levels can fluctuate and transient autoantibody positivity in adult onset autoimmune diabetes have been reported to affect the phenotype.

scholarly journals Genetic Similarities Between Latent Autoimmune Diabetes in Adults, Type 1 Diabetes, and Type 2 Diabetes

Diabetes ◽  
2008 ◽  
Vol 57 (5) ◽  
pp. 1433-1437 ◽  
Author(s):  
C. Cervin ◽  
V. Lyssenko ◽  
E. Bakhtadze ◽  
E. Lindholm ◽  
P. Nilsson ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Autoimmune Diabetes ◽  
Latent Autoimmune Diabetes

scholarly journals Characteristics of the Gut Microbiota and Metabolism in Patients With Latent Autoimmune Diabetes in Adults: A Case-Control Study

2021 ◽  
Author(s):  
Yuanyuan Fang ◽  
Chenhong Zhang ◽  
Hongcai Shi ◽  
Wei Wei ◽  
Jing Shang ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Gut Microbiota ◽  
Case Control Study ◽  
Autoimmune Diabetes ◽  
Case Control ◽  
Latent Autoimmune Diabetes ◽  
Control Study

OBJECTIVE <p>Type 1 and type 2 diabetes are associated with gut dysbiosis. However, the relationship between the gut microbiota and latent autoimmune diabetes in adults (LADA), sharing clinical and metabolic features with classic type 1 and type 2 diabetes, remains unclear. Here, we identified the characteristics of the gut microbiota and metabolic profiles in patients with LADA using a multi-omics approach.</p> <p>RESEARCH DESIGN AND METHODS</p> <p>This age- and sex-matched case-control study included 30 patients with LADA, 31 patients with classic type 1 diabetes, 30 patients with type 2 diabetes, and 29 healthy individuals. The gut microbiota profiles were identified via the 16S rRNA gene, and fecal and serum metabolites were measured via untargeted liquid chromatography-mass spectrometry.</p> <p>RESULTS </p> <p>LADA patients had a significantly different structure and composition of the gut microbiota and their metabolites as well as a severe deficiency of short-chain fatty acid-producing bacteria. The gut microbiota structure of the LADA patients was more similar to that of patients with type 1 diabetes who were positive for GAD antibody. We identified seven serum metabolite modules and eight fecal metabolite modules that differed between the LADA group and the other groups.</p> <p>CONCLUSIONS </p> <p><a>The characteristic gut microbiota and related metabolites of patients with LADA are associated with autoantibodies, glucose metabolism, islet function, and inflammatory factors, which may contribute to the pathogenesis of LADA. </a>Future longitudinal studies should explore whether modulating the gut microbiota and related metabolites can alter the natural course of autoimmune diabetes, in the quest for new therapeutic.</p>

1639-P: Correlates and Prevalence of Hypogonadism in Male Patients with Latent Autoimmune Diabetes, Classic Type 1 Diabetes, and Classic Type 2 Diabetes

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 1639-P
Author(s):  
MEILI CAI ◽  
JINGYANG GAO ◽  
CHUNJUN SHENG ◽  
HONG LI ◽  
HUI SHENG ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Autoimmune Diabetes ◽  
Latent Autoimmune Diabetes ◽  
Male Patients

scholarly journals Characteristics of the Gut Microbiota and Metabolism in Patients With Latent Autoimmune Diabetes in Adults: A Case-Control Study

2021 ◽  
Author(s):  
Yuanyuan Fang ◽  
Chenhong Zhang ◽  
Hongcai Shi ◽  
Wei Wei ◽  
Jing Shang ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Type 1 Diabetes ◽  
Gut Microbiota ◽  
Case Control Study ◽  
Autoimmune Diabetes ◽  
Case Control ◽  
Latent Autoimmune Diabetes ◽  
Control Study

OBJECTIVE <p>Type 1 and type 2 diabetes are associated with gut dysbiosis. However, the relationship between the gut microbiota and latent autoimmune diabetes in adults (LADA), sharing clinical and metabolic features with classic type 1 and type 2 diabetes, remains unclear. Here, we identified the characteristics of the gut microbiota and metabolic profiles in patients with LADA using a multi-omics approach.</p> <p>RESEARCH DESIGN AND METHODS</p> <p>This age- and sex-matched case-control study included 30 patients with LADA, 31 patients with classic type 1 diabetes, 30 patients with type 2 diabetes, and 29 healthy individuals. The gut microbiota profiles were identified via the 16S rRNA gene, and fecal and serum metabolites were measured via untargeted liquid chromatography-mass spectrometry.</p> <p>RESULTS </p> <p>LADA patients had a significantly different structure and composition of the gut microbiota and their metabolites as well as a severe deficiency of short-chain fatty acid-producing bacteria. The gut microbiota structure of the LADA patients was more similar to that of patients with type 1 diabetes who were positive for GAD antibody. We identified seven serum metabolite modules and eight fecal metabolite modules that differed between the LADA group and the other groups.</p> <p>CONCLUSIONS </p> <p><a>The characteristic gut microbiota and related metabolites of patients with LADA are associated with autoantibodies, glucose metabolism, islet function, and inflammatory factors, which may contribute to the pathogenesis of LADA. </a>Future longitudinal studies should explore whether modulating the gut microbiota and related metabolites can alter the natural course of autoimmune diabetes, in the quest for new therapeutic.</p>

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