14
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Vascular endothelial growth factor gene variations as a risk predictor in disc degeneration Translated title: Variação do gene fator de crescimento endotelial vascular como preditor de risco para a degeneração discal

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          ABSTRACT

          Objective

          To evaluate the frequency of polymorphisms in the vascular endothelial growth factor (VEGF) gene, as well as to identify a potential risk haplotype among the polymorphic regions in this gene in patients with disc degeneration and in the Control Group.

          Methods

          This study analyzed a total of 217 individuals distributed into the Disc Degeneration and Control Groups. Peripheral blood was collected from all patients to detect VEGF gene polymorphisms identified by qPCR (rs699947, rs1570360, rs2010963, rs833061 and rs3025039). All patients presenting disc degeneration had the confirmation by nuclear magnetic resonance test and were rated according to disc degeneration level.

          Results

          All polymorphisms were in Hardy- Weinberg equilibrium (p>0.05) in the studied population. The genotypic frequency for Disc Degeneration and Control Group were rs699947 p = 0.475, rs1570360 p = 0.862, rs2010963 p = 0.823, rs833061 p=0.596 and rs3025039 p=0.230. In haplotype analysis, the compositions CAGGC (p=0.094) and CCGGC (p=0.054) stood out.

          Conclusion

          The correlation between VEGF gene polymorphism as a risk predictor for disc degeneration was negative in the studied population. However, the VEGF gene has a large polymorphic region, and it is activated by various catabolic and metabolic factors in the disc degeneration process, which has not been fully elucidated.

          RESUMO

          Objetivo

          Avaliar a frequência dos polimorfismos no gene fator de crescimento endotelial vascular (VEGF), bem como identificar potencial haplótipo de risco entre as regiões polimórficas deste gene em pacientes com degeneração discal e em Grupo Controle.

          Métodos

          Este estudo analisou 217 pacientes distribuídos nos Grupos Degeneração Discal e Grupo Controle. Foi coletado sangue periférico de todos os pacientes para a detecção dos polimorfismos do gene VEGF identificados por qPCR (rs699947, rs1570360, rs2010963, rs833061 e rs3025039). Todos os pacientes que apresentaram degeneração discal tiveram a confirmação por meio de ressonância magnética nuclear e avaliação do nível de degeneração do disco.

          Resultados

          Todos os polimorfismos foram encontrados no equilíbrio de Hardy-Weinberg (p>0,05) na população estudada. A frequência genotípica para o Grupo Degeneração de Disco e do Grupo Controle foi rs699947 p=0,475, rs1570360 p=0,862, rs2010963 p=0,823, rs833061 p=0,596 e rs3025039 p=0,230. Para a análise do haplótipo, destacaram-se as composições CAGGC (p=0,094) e CCGGC (p=0,054).

          Conclusão

          A correlação entre os polimorfismos do gene VEGF como preditor de risco para degeneração discal foi negativa na população estudada. No entanto, o VEGF possui grande região polimórfica, ativada por vários fatores catabólicos e metabólicos no processo de degeneração discal, que não está completamente elucidado.

          Related collections

          Most cited references23

          • Record: found
          • Abstract: found
          • Article: not found

          Low back pain in relation to lumbar disc degeneration.

          Cross-sectional magnetic resonance imaging (MRI) study. To study the relation of low back pain (LBP) to disc degeneration in the lumbar spine. Controversy still prevails about the relationship between disc degeneration and LBP. Classification of disc degeneration and symptoms varies, hampering comparison of study results. Subjects comprised 164 men aged 40-45 years-53 machine drivers, 51 construction carpenters, and 60 office workers. The data of different types of LBP, individual characteristics, and lifestyle factors were obtained from a questionnaire and a structured interview. Degeneration of discs L2/L3-L5/S1 (dark nucleus pulposus and posterior and anterior bulge) was assessed with MRI. An increased risk of LBP (including all types) was found in relation to all signs of disc degeneration. An increased risk of sciatic pain was found in relation to posterior bulges, but local LBP was not related to disc degeneration. The risks of LBP and sciatic pain were strongly affected by occupation. Low back pain is associated with signs of disc degeneration and sciatic pain with posterior disc bulges. Low back pain is strongly associated with occupation.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Identification of polymorphisms within the vascular endothelial growth factor (VEGF) gene: correlation with variation in VEGF protein production.

            Dysregulated vascular endothelial growth factor (VEGF) expression has been implicated as a major contributor to the development of a number of common disease pathologies. The aim of this study was to establish the extent of genetic variability within the VEGF gene and to determine whether this genetic variation influenced levels of VEGF protein expression. The promoter region and exon 1 of the VEGF gene were screened for polymorphisms using single-stranded conformation (SSCP) polymorphism analysis and direct PCR-sequencing. We identified 15 novel sequence polymorphisms most of which were rare. Eleven of these polymorphisms were single base substitutions, three were single base insertions and one was a two base deletion. Thirteen of the polymorphisms were located within the promoter and two in the 5' untranslated region (5'UTR) of the gene. We established PCR-RFLP typing systems for ten of the polymorphisms. For the two common polymorphisms at -460 and +405, we developed a combined sequence specific priming (SSP) PCR typing system to determine the cis/trans orientation of each allele and hence, ascertain haplotypes. A significant correlation was observed between lipopolysaccharide (LPS) stimulated peripheral blood mononuclear cell (PBMC) VEGF protein production and genotype for the +405 polymorphism. Copyright 2000 Academic Press.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              A common polymorphism in the 5'-untranslated region of the VEGF gene is associated with diabetic retinopathy in type 2 diabetes.

              Vascular endothelial growth factor (VEGF), a major mediator of vascular permeability and angiogenesis, may play a pivotal role in mediating the development and progression of diabetic retinopathy. In the present study, we examined the genetic variations of the VEGF gene to assess its possible relation to diabetic retinopathy in type 2 diabetic patients. Among seven common polymorphisms in the promoter region, 5'-untranslated region (UTR) and 3'UTR of the VEGF gene, genotype distribution of the C(-634)G polymorphism differed significantly (P = 0.011) between patients with (n = 150) and without (n = 118) retinopathy, and the C allele was significantly increased in patients with retinopathy compared with those without retinopathy (P = 0.0037). The odds ratio (OR) for the CC genotype of C(-634)G to the GG genotype was 3.20 (95% CI 1.45-7.05, P = 0.0046). The -634C allele was significantly increased in patients with nonproliferative diabetic retinopathy (non-PDR) (P = 0.0026) and was insignificantly increased in patients with proliferative diabetic retinopathy (PDR) (P = 0.081) compared with patients without retinopathy, although frequencies of the allele did not differ significantly between the non-PDR and PDR groups. Logistic regression analysis revealed that the C(-634)G polymorphism was strongly associated with an increased risk of retinopathy (P = 0.0018). Furthermore, VEGF serum levels were significantly higher in healthy subjects with the CC genotype of the C(-634)G polymorphism than in those with the other genotypes. These data suggest that the C(-634)G polymorphism in the 5'UTR of the VEGF gene is a novel genetic risk factor for diabetic retinopathy.
                Bookmark

                Author and article information

                Journal
                Einstein (Sao Paulo)
                Einstein (Sao Paulo)
                eins
                Einstein
                Instituto Israelita de Ensino e Pesquisa Albert Einstein
                1679-4508
                2317-6385
                Oct-Dec 2017
                Oct-Dec 2017
                : 15
                : 4
                : 403-408
                Affiliations
                [1 ]Faculdade de Medicina do ABC, Santo André, SP, Brazil.
                Author notes
                Corresponding author: Aline Amaro - Avenida Lauro Gomes, 2,000, CEPES Building, 2nd floor - Vila Sacadura Cabral - Zip code: 09060-870 - Santo André, SP, Brazil - Phone: (55 11) 4993-5464 E-mail: aline.amaro.santos@ 123456hotmail.com

                Conflict of interest: none.

                Article
                S1679-45082017AO4053
                10.1590/S1679-45082017AO4053
                5875151
                29364361
                d6083e01-cc48-4c7a-ad39-bde74d2a2575

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 10 April 2017
                : 22 August 2017
                Page count
                Figures: 0, Tables: 8, Equations: 0, References: 26, Pages: 6
                Categories
                Original Article

                polymorphism, genetic,vascular endothelial growth factor a/genetics,intervertebral disc degeneration,polimorfismo genético,fator a de crescimento do endotélio vascular/genética,degeneração do disco intervertebral

                Comments

                Comment on this article