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Periodontitis association with IL-8 gene polymorphisms. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2021; 166:28-39. [PMID: 34907404 DOI: 10.5507/bp.2021.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 11/16/2021] [Indexed: 12/15/2022] Open
Abstract
IL-8 and its polymorphisms are involved in multiple acute and chronic inflammatory processes including pathological changes to surrounding structures of the teeth called periodontal diseases or periodontitis. The aim of this manuscript was to systematically review studies from 2006 to 2021 on IL-8 polymorphisms and their association with periodontitis. Literature analysis was done following the PRISMA protocol guidance using articles not older than 15 years (2006-2021). The search was carried out using PubMed (MEDLINE), ScienceDirect and Wiley Online Library databases. For the focus question, the PICO (population (P), intervention (I), control (C), and outcome (O)) study design protocol was used, and the following question was formulated: are IL-8 gene polymorphisms associated with periodontitis? A total of 2422 articles were found at the beginning of the search. After applying the inclusion and exclusion criteria, screening, and full-text article exclusion with reasons, 31 studies were included in the analysis. In conclusion, IL-8 and its gene polymorphisms are associated with an increased risk of periodontal diseases.
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Silva BRD, Cirelli T, Nepomuceno R, Theodoro LH, Orrico SRP, Cirelli JA, Barros SP, Scarel-Caminaga RM. Functional haplotype in the Interleukin8 (CXCL8) gene is associated with type 2 Diabetes Mellitus and Periodontitis in Brazilian population. Diabetes Metab Syndr 2020; 14:1665-1672. [PMID: 32905938 DOI: 10.1016/j.dsx.2020.08.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Type 2 Diabetes Mellitus (T2DM) and Periodontitis (P) are prevalent multifactorial disorders worldwide, sharing a bidirectional relationship influenced by the genetic susceptibility of the host immune system. We investigated whether SNPs in the Interleukin 8 (IL8, alias CXCL8) gene could be associated with T2DM and Periodontitis. METHODS Genomic DNA was obtained from 874 Brazilian individuals divided into: Healthy group (n = 307), Periodontitis group (n = 334), and individuals affected by both T2DM and Periodontitis (T2DM_P) group (n = 233). The SNPs -251(T>A) rs4073, +396(T>G) rs2227307 and +781(C>T) rs2227306 were genotyped by TaqMan®. Multiple logistic regressions were used to determine the degree of association between polymorphisms (and haplotypes) with periodontitis and T2DM adjusted for known confounders. RESULTS The additive model revealed that the heterozygous AT(-251), GT(+396) and CT(+781) genotypes showed a lower risk for the diseased phenotypes, and carriers of the TTC/TTC haplotype were significantly susceptible to T2DM and Periodontitis concomitantly, as well to isolated Periodontitis (mainly the severe form). CONCLUSIONS We concluded, for the first time, that these functional CXCL8 SNPs, and the homozygous TTC haplotype are relevant genetic factors for T2DM and Periodontitis as comorbidities, as well as for severe Periodontitis susceptibility in Brazilian population.
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Affiliation(s)
- Bárbara Roque da Silva
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil; Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Thamiris Cirelli
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil; Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Rafael Nepomuceno
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil; Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Letícia Helena Theodoro
- Department of Surgery and Integrated Clinic, São Paulo State University - UNESP, School of Dentistry at Araçatuba, Araçatuba, SP, Brazil
| | - Silvana R P Orrico
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil; Advanced Research Center in Medicine, Union of the Colleges of the Great Lakes (UNILAGO), São José do Rio Preto, SP, 15030-070, Brazil
| | - Joni A Cirelli
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Silvana P Barros
- Department of Comprehensive Oral Health - Periodontology, University of North Carolina at Chapel Hill - UNC, School of Dentistry, Chapel Hill, NC, USA
| | - Raquel M Scarel-Caminaga
- Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil.
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