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Ren D, He L, Pang X. Association of CLTA-4 Gene Polymorphisms with Diabetes Mellitus: A Study Based on the Han Population of Northern China. Diabetes Metab Syndr Obes 2022; 15:2705-2712. [PMID: 36091483 PMCID: PMC9451031 DOI: 10.2147/dmso.s374451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the association of CLTA-4 gene polymorphism with Type 1 and 2 diabetes mellitus (DM) (T1DM and T2DM) in the Han population of northern China. METHODS A total of 234 Chinese Han DM patients and 187 non-diabetic subjects were included in the study. Two gene polymorphisms of the CLTA-4, including CTLA-4+49A/G (rs231775) and CTLA4-318C/T (rs5742909), were studied using polymerase chain reaction-restriction endonuclease fragment length polymorphism (PCR-RFLP) analysis. Chi-square analysis and Student's t-test were performed to determine the distribution of the gene polymorphism and alleles at the locus of CTLA4-318C/T and CTLA4+49A/G among T1DM and T2DM patients with or without diabetic ketosis (DK), diabetic nephropathy (DN) or autoantibodies (Ab). RESULTS Our results indicated that the distribution frequencies of genotypes and alleles at the CTLA-4+49A/G and CTLA4-318C/T loci of T1DM patients were not significantly different from those of the controls. However, the distribution frequencies of genotypes and alleles at the CTLA-4+49A/G loci of T2DM patients were significantly different from the controls (P=0.024 for genotypes and P=0.004 for A and G alleles). Besides, the A and G alleles at the CTLA4-318C/T loci of T2DM DK+ patients showed significantly different distribution frequencies compared to those of the T2DM DK patients (P=0.001). CONCLUSION Our data suggest that the gene polymorphisms of CTLA-4, including CTLA-4+49A/G and CTLA4-318C/T, are important predictors of DM. CTLA-4 may be a susceptibility gene for T2DM. Patients with T2DM carrying the T allele at the CTLA4-318 C/T locus are more predisposed to diabetic ketosis.
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Affiliation(s)
- Dongyue Ren
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Lin He
- Good Clinical Practice Institution, the Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Xiaoling Pang
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
- Correspondence: Xiaoling Pang, Department of Emergency, the Fourth Affiliated Hospital of China Medical University, No. 4 Chongshan East Road, Huanggu District, Shenyang, 110032, People’s Republic of China, Tel +86-18900913992, Email
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Molecular analysis of CTLA4 gene in patients with Behçet's disease from an Iranian Northwest Azeri population. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Gloaguen E, Bendelac N, Nicolino M, Julier C, Mathieu F. A systematic review of non-genetic predictors and genetic factors of glycated haemoglobin in type 1 diabetes one year after diagnosis. Diabetes Metab Res Rev 2018; 34:e3051. [PMID: 30063815 DOI: 10.1002/dmrr.3051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/20/2018] [Accepted: 07/23/2018] [Indexed: 12/13/2022]
Abstract
Type 1 diabetes (T1D) results from autoimmune destruction of the pancreatic βcells. Although all T1D patients require daily administration of exogenous insulin, their insulin requirement to achieve good glycaemic control may vary significantly. Glycated haemoglobin (HbA1c) level represents a stable indicator of glycaemic control and is a reliable predictor of long-term complications of T1D. The purpose of this article is to systematically review the role of non-genetic predictors and genetic factors of HbA1c level in T1D patients after the first year of T1D, to exclude the honeymoon period. A total of 1974 articles published since January 2011 were identified and 78 were finally included in the analysis of non-genetic predictors. For genetic factors, a total of 277 articles were identified and 14 were included. The most significantly associated factors with HbA1c level are demographic (age, ethnicity, and socioeconomic status), personal (family characteristics, parental care, psychological traits...) and features related to T1D (duration of T1D, adherence to treatment …). Only a few studies have searched for genetic factors influencing HbA1c level, most of which focused on candidate genes using classical genetic statistical methods, with generally limited power and incomplete adjustment for confounding factors and multiple testing. Our review shows the complexity of explaining HbA1c level variations, which involves numerous correlated predictors. Overall, our review underlines the lack of studies investigating jointly genetic and non-genetic factors and their interactions to better understand factors influencing glycaemic control for T1D patients.
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Affiliation(s)
- Emilie Gloaguen
- Inserm UMRS-958, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | | | - Marc Nicolino
- Hôpital Femme-Mère-Enfant, Hospices Civils de Lyon, Bron, France
| | - Cécile Julier
- Inserm UMRS-958, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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Almasi S, Aliparasti MR, Naghili B, Yeganeh K, Rahnama B, Tavanafar F, Hazhir Karzar B, Amini Khiabani S, Naghili A, Babaloo Z. Analysis of CTLA-4+49A/G gene polymorphism in cases with leprosy of Azerbaijan, Northwest Iran. INFECTION GENETICS AND EVOLUTION 2017; 57:121-127. [PMID: 29104093 DOI: 10.1016/j.meegid.2017.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/31/2017] [Accepted: 11/01/2017] [Indexed: 11/27/2022]
Abstract
Leprosy, which is developed by the obligate intracellular Mycobacterium leprae (ML); has different manifestations, associated with the host immune responses. The protective immune response against ML includes T-cell-mediated immunity. The CTLA-4 has a great impact as a negative regulator of the immune response and maintenance of peripheral tolerance. This study analyzed the relationship between CTLA-4+49A/G gene polymorphism and clinical manifestation of leprosy disease and susceptibility among the Azeri population living Northwest Iran. One hundred and ninety-two leprosy patients and 185 healthy controls participated in the study. CTLA-4+49A/G genotyping was conducted via tetra-primer amplification refractory mutation system-polymerase chain reaction (T-ARMS-PCR) analysis. The allelic and genotypic frequencies of +49A/G gene polymorphism were similar in controls and patients. However, older ages, older age of onset and over-representation in male were observed in lepromatous leprosy patient carriers of GG genotype. The current study demonstrates that although CTLA-4+49A/G polymorphism was not correlated with a higher genetic risk for leprosy, the presence of a GG genotype was associated with older ages, older age of onset and over-representation in male in Iranian Azeri population.
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Affiliation(s)
- Shohreh Almasi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Aliparasti
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Unit, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Behrouz Naghili
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khalil Yeganeh
- Department of Infectious and Tropical Diseases, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Badrossadat Rahnama
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Tavanafar
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bita Hazhir Karzar
- Students' Research Committee, Medical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Arman Naghili
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Babaloo
- Immunology Unit, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Aloui C, Sut C, Cognasse F, Granados V, Hassine M, Chakroun T, Garraud O, Laradi S. Development of a highly resolutive method, using a double quadruplex tetra-primer-ARMS-PCR coupled with capillary electrophoresis to study CD40LG polymorphisms. Mol Cell Probes 2015; 29:335-342. [PMID: 26577033 DOI: 10.1016/j.mcp.2015.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/06/2015] [Accepted: 11/06/2015] [Indexed: 12/18/2022]
Abstract
Polymorphisms in the CD40 ligand gene (CD40LG) are associated with various immunological disorders such as tumors, autoimmune and infectious diseases. The aim of this study was to develop a highly optimized double quadruplex tetra-primer amplification refractory mutation system PCR (double quadruplex T-ARMS-PCR) coupled with capillary electrophoresis to allow genotyping of eight relevant candidate CD40LG SNPs and to establish haplotypes. After conducting the double quadruplex T-ARMS-PCR, the genotypes obtained through agarose electrophoresis were compared with those obtained through capillary electrophoresis. This strategy was applied to analyze the genetic patterns of CD40LG in two distinct cohorts of blood donors (211 French and 274 Tunisian). The T-ARMS-PCR method was rapid, inexpensive, reproducible and reliable for SNP determination. Regarding the separation technique, capillary electrophoresis allows traceable and semi-automated analysis while agarose electrophoresis remains a cost-effective technique that does not require specialized or costly equipment. Using these methods, we identified significantly different genetic heterogeneity between the two investigated populations (p ≤ 0.0001) and we also extensively characterized their haplotypes. The obtained genotype distribution and the optimized quadruplex T-ARMS-PCR technique coupled with capillary electrophoresis provides valuable information for studying pathologic inflammation leading to various diseases in which CD40LG might be a candidate gene.
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Affiliation(s)
- Chaker Aloui
- GIMAP-EA3064, University of Lyon, Saint-Etienne, 42270 Saint-Priest-en-Jarez, France; French Blood Establishment, EFS Auvergne-Loire, 42023 Saint-Etienne, France
| | - Caroline Sut
- GIMAP-EA3064, University of Lyon, Saint-Etienne, 42270 Saint-Priest-en-Jarez, France; French Blood Establishment, EFS Auvergne-Loire, 42023 Saint-Etienne, France
| | - Fabrice Cognasse
- GIMAP-EA3064, University of Lyon, Saint-Etienne, 42270 Saint-Priest-en-Jarez, France; French Blood Establishment, EFS Auvergne-Loire, 42023 Saint-Etienne, France
| | - Viviana Granados
- Department of Molecular Genetics, Saint-Etienne University Hospital, 42270 Saint-Priest-en-Jarez, France
| | - Mohsen Hassine
- Blood Bank of Monastir, F. Bourguiba University Hospital, 5000 Monastir, Tunisia
| | - Tahar Chakroun
- Regional Centre of Transfusion of Sousse, F. Hached University Hospital, 4000 Sousse, Tunisia
| | - Olivier Garraud
- GIMAP-EA3064, University of Lyon, Saint-Etienne, 42270 Saint-Priest-en-Jarez, France; National Institut of Blood Transfusion, 75739 Paris, France
| | - Sandrine Laradi
- GIMAP-EA3064, University of Lyon, Saint-Etienne, 42270 Saint-Priest-en-Jarez, France; French Blood Establishment, EFS Auvergne-Loire, 42023 Saint-Etienne, France.
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