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The potential European genetic predisposition for non-contact anterior cruciate ligament injury. Knee Surg Sports Traumatol Arthrosc 2018; 26:3532-3536. [PMID: 29728743 DOI: 10.1007/s00167-018-4974-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 04/30/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE Previous research has provided evidence of a hereditary predisposition for anterior cruciate ligament (ACL) injury. The purpose of this study was to evaluate the association between ancestral population genetics and risk of non-contact ACL injuries. METHODS Blood samples were collected from 177 individuals with a history of non-contact ACL injury and 556 non-injured control individuals for analysis of the genetic material through the use of a panel of 48 INDELs ancestry genetic markers from three ancestral origins. RESULTS Among patients with non-contact ACL injury, 82% were male and 18% were female. In the control group, 78% were male, and 22% were female. The mean age of the non-contact ACL injury group was 31.7 years (± 10.2), and the control group was 33.8 years (± 13.2). The individual genetic contribution from INDELs of each ancestral origin varied considerably: ranging between 1.5-94.8% contribution for INDELs of African origin (mean of 21.4% of INDELs); between 2 and 96.1% contribution for INDELs of European origin (mean of 66.7% of INDELs); and between 1.3-96.4% contribution for INDELs of Amerindian origin (mean of 11.7% of INDELs). When comparing paired subjects from the non-contact ACL and control groups, the genetic analysis showed that the European ancestry score was higher in the non-contact ACL group than control group (0.70 ± 0.21 vs 0.63 ± 0.22 respectively, p < 0.001), whereas African ancestry scores (ACL group 0.18 ± 0.18 vs control group 0.24 ± 0.21, p < 0.001) and Amerindian ancestry scores (ACL group 0.11 ± 0.09 vs control group 0.12 ± 0.10, n.s.) were lower among the non-contact ACL group than in controls. CONCLUSION European INDELs markers were found to represent a potential genetic predisposition for non-contact ACL injuries when compared to African and Amerindian INDELs. This study has the potential to correlate a measurable and distinct genetic marker with risk of a non-contact ACL injury. Thus, it increases knowledge base and volume of molecular and genetical factors associated with this pathology. Furthermore, this study provides guidance and evidence for the development of genetic risk-screening panels for non-contact ACL injury. LEVEL OF EVIDENCE Level III Diagnostic Study.
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Cesar Silva de Castro C, Miot HA. Prevalence of vitiligo in Brazil-A population survey. Pigment Cell Melanoma Res 2018; 31:448-450. [PMID: 29272074 DOI: 10.1111/pcmr.12681] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Hélio A Miot
- Department of Dermatology, FMB-Unesp, Botucatu-SP, Brazil.,Unidade de Pesquisa em Saúde Coletiva (UPESC) da FMB-Unesp, Botucatu-SP, Brazil
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D'Elia MPB, Brandão MC, de Andrade Ramos BR, da Silva MG, Miot LDB, Dos Santos SEB, Miot HA. African ancestry is associated with facial melasma in women: a cross-sectional study. BMC MEDICAL GENETICS 2017; 18:17. [PMID: 28212612 PMCID: PMC5316149 DOI: 10.1186/s12881-017-0378-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 02/03/2017] [Indexed: 12/20/2022]
Abstract
Background Melasma is a chronic acquired focal hypermelanosis affecting photoexposed areas, especially for women during fertile age. Several factors contribute to its development: sun exposure, sex steroids, medicines, and family history. Melanic pigmentation pathway discloses several SNPs in different populations. Here, we evaluated the association between genetic ancestry and facial melasma. Methods A cross-sectional study involving women with melasma and an age-matched control group from outpatients at FMB-Unesp, Botucatu-SP, Brazil was performed. DNA was extracted from oral mucosa swabs and ancestry determined by studying 61 INDELs. The genetic ancestry components were adjusted by other known risk factors by multiple logistic regression. Results We evaluated 119 women with facial melasma and 119 controls. Mean age was 39 ± 9 years. Mean age at beginning of disease was 27 ± 8 years. Pregnancy (40%), sun exposure (37%), and hormonal oral contraception (22%) were the most frequently reported melasma triggers. All subjects presented admixed ancestry, African and European genetic contributions were significantly different between cases and controls (respectively 10% vs 6%; 77% vs 82%; p < 0.05). African ancestry (OR = 1.04; 95% CI 1.01 to 1.07), first generation family history (OR = 3.04; 95% CI 1.56 to 5.94), low education level (OR = 4.04; 95% CI 1.56 to 5.94), and use of antidepressants by individuals with affected family members (OR = 6.15; 95% CI 1.13 to 33.37) were associated with melasma, independently of other known risk factors. Conclusions Facial melasma was independently associated with African ancestry in a highly admixed population. Electronic supplementary material The online version of this article (doi:10.1186/s12881-017-0378-7) contains supplementary material, which is available to authorized users.
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Gröndahl-Yli-Hannuksela K, Vahlberg T, Ilonen J, Mertsola J, He Q. Polymorphism of IL-10 gene promoter region: association with T cell proliferative responses after acellular pertussis vaccination in adults. Immunogenetics 2016; 68:733-41. [PMID: 27282930 DOI: 10.1007/s00251-016-0923-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
Abstract
Individual variation in immune responses is always encountered after vaccination. This phenomenon is also seen after acellular pertussis vaccination. The aim of this present study was to investigate whether single nucleotide polymorphisms (SNPs) in the IL-10 gene promoter region (rs1800890, rs1800896, rs1800871), IL-12B (rs2546890), IL-12RB1 (rs372889), IL-17A (rs2275913), and IL-23R (rs11209026) affect the immune responses after acellular pertussis vaccination. The T cell proliferative response was evaluated in 38 Finnish young adults who received a second booster dose of a vaccine combination of diphtheria, tetanus, and acellular pertussis, 10 years after the previous booster. The response was evaluated with a proliferation assay in which vaccine antigens pertussis toxin (PT), filamentous hemagglutinin (FHA), and pertactin (PRN) were used for the stimulation, before and 1 month after the second vaccination. Specific proliferation of peripheral blood mononuclear cells against pertussis antigens was affected by IL-10 SNP in the promoter region at position -1082 (A>G, rs1800896). One month after the vaccination, subjects with the AA and AG genotypes had a significantly higher T cell proliferative response against PT and FHA compared to those with the GG genotype. Subjects with the GG genotype had the lowest responses. As a conclusion, our preliminary results indicate that IL-10 SNP -1082 might play an important role in T cell-mediated immune responses after acellular pertussis vaccination.
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Affiliation(s)
- Kirsi Gröndahl-Yli-Hannuksela
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland.,Department of Infectious Disease Surveillance and Control, National Institute for Health and Welfare, Turku, Finland
| | - Tero Vahlberg
- Department of Biostatistics, University of Turku, Turku, Finland
| | - Jorma Ilonen
- Immunogenetics Laboratory, University of Turku, Turku, Finland
| | - Jussi Mertsola
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | - Qiushui He
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland. .,Department of Infectious Disease Surveillance and Control, National Institute for Health and Welfare, Turku, Finland. .,Department of Medical Microbiology, Capital Medical University, Beijing, China.
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El Ghannam D, Fawzy IM, Azmy E, Hakim H, Eid I. Relation of interleukin-10 Promoter Polymorphisms to Adult Chronic Immune Thrombocytopenic Purpura in a Cohort of Egyptian Population. Immunol Invest 2016; 44:616-26. [PMID: 26436850 DOI: 10.3109/08820139.2015.1064948] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Adult chronic immune thrombocytopenic purpura (chronic ITP) is an autoimmune multifactorial bleeding disorder that occurs because of enhanced peripheral platelet destruction. Treatment decisions can be challenging because the goal of treatment is to prevent severe bleeding, but the risk of bleeding can be difficult to estimate for any individual patient. OBJECTIVE This case-control study was planned to investigate the relationship of interleukin (IL)-10 promoter (IL-10-1082, -819 and -592) polymorphisms with the susceptibility, severity and outcome of adult chronic ITP in a cohort of Egyptian population. SUBJECTS AND METHODS Typing of IL-10 promoter polymorphisms was done using restriction fragment length polymorphism for 62 adult patients with chronic ITP and 73 age- and sex-matched healthy controls. RESULTS No significant differences were found between ITP patients and controls regarding the frequency of IL-10 promoter genotypes, alleles or haplotypes. IL-10-592 AA genotype and ATA (IL-10-1082, -819 and -592) haplotype were associated with severe ITP (p = 0.003, 0.043, respectively). CONCLUSION Our findings suggest that the IL-10 promoter polymorphisms are unlikely to affect the development or treatment outcome of chronic adult ITP in Egyptian population, but IL-10-592 AA genotype and IL-10 (-1082, -819 and -592) ATA haplotype may be associated with disease severity. Because ITP is a complex disease, it is recommended that a multicenter study should be done with large sample size and unified typing technique.
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Affiliation(s)
- Doaa El Ghannam
- a Department of Clinical Pathology, Faculty of Medicine , Mansoura University , Mansoura , Egypt
| | - Iman M Fawzy
- b Laboratory Medicine Department , Mansoura Fever Hospital , Mansoura , Egypt
| | - Emad Azmy
- c Department of Clinical Hematology , and
| | - Hazem Hakim
- d Internal Medicine Department, Faculty of Medicine, Mansoura University , Mansoura , Egypt
| | - Islam Eid
- d Internal Medicine Department, Faculty of Medicine, Mansoura University , Mansoura , Egypt
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Ramos BRDA, D'Elia MPB, Amador MAT, Santos NPC, Santos SEB, da Cruz Castelli E, Witkin SS, Miot HA, Miot LDB, da Silva MG. Neither self-reported ethnicity nor declared family origin are reliable indicators of genomic ancestry. Genetica 2016; 144:259-65. [PMID: 26984822 DOI: 10.1007/s10709-016-9894-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 03/13/2016] [Indexed: 12/11/2022]
Abstract
Ancestry information can be useful in investigations of diseases with a genetic or infectious background. As the Brazilian population is highly admixed physical traits tend to be poor indicators of ancestry. The assessment of ancestry by ancestry informative markers (AIMs) can exclude the subjectivity of self-declared ethnicity and reported family origin. We aimed to evaluate the reliability of self-reported ethnicity or reported family origin as indicators of genomic ancestry in a female population from the Southeast of Brazil. Two cohorts were included: 404 women asked to self-report their ethnicity (Pop1) and 234 women asked to report their family's origin (Pop2). Identification of AIMs was performed using a panel of 61 markers and results were plotted against parental populations-Amerindian, Western European and Sub-Saharan African-using Structure v2.3.4. In Pop1 57.4 % of women self-reported as white, 34.6 % as brown and 8.0 % as black. Median global European, Amerindian and African contributions were 66.8, 12.6 and 16.6 %. In Pop2, 66.4 % of women declared European origin, 23.9 % African origin and 26.9 % Amerindian. Median global European, Amerindian and African contributions were 80.8, 7.3 and 7.6 %, respectively. Only 31.0 and 21.0 % of the global variation in African and European contributions, respectively, could be explained by self-reported ethnicity and reported family origin only accounted for 20.0 and 5.0 % of the variations observed in African and European ancestries, respectively. Amerindian ancestry did not influence self-reported ethnicity or declared family origin. Neither self-reported ethnicity nor declared family origin are reliable indicators of genomic ancestry in these Brazilian populations.
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Affiliation(s)
- Bruna Ribeiro de Andrade Ramos
- Department of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Maria Paula Barbieri D'Elia
- Depatment of Dermatology and Radiotherapy, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, São Paulo, Brazil
| | | | | | | | - Erick da Cruz Castelli
- Department of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Steven S Witkin
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Hélio Amante Miot
- Depatment of Dermatology and Radiotherapy, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, São Paulo, Brazil
| | - Luciane Donida Bartoli Miot
- Depatment of Dermatology and Radiotherapy, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, São Paulo, Brazil
| | - Márcia Guimarães da Silva
- Department of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil.
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Pinto P, Salgado C, Santos NPC, Santos S, Ribeiro-dos-Santos Â. Influence of Genetic Ancestry on INDEL Markers of NFKβ1, CASP8, PAR1, IL4 and CYP19A1 Genes in Leprosy Patients. PLoS Negl Trop Dis 2015; 9:e0004050. [PMID: 26367014 PMCID: PMC4569399 DOI: 10.1371/journal.pntd.0004050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 08/12/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Leprosy is an insidious infectious disease caused by the obligate intracellular bacteria Mycobacterium leprae, and host genetic factors can modulate the immune response and generate distinct categories of leprosy susceptibility that are also influenced by genetic ancestry. METHODOLOGY/PRINCIPAL FINDINGS We investigated the possible effects of CYP19A1 [rs11575899], NFKβ1 [rs28362491], IL1α [rs3783553], CASP8 [rs3834129], UGT1A1 [rs8175347], PAR1 [rs11267092], CYP2E1 [INDEL 96pb] and IL4 [rs79071878] genes in a group of 141 leprosy patients and 180 healthy individuals. The INDELs were typed by PCR Multiplex in ABI PRISM 3130 and analyzed with GeneMapper ID v3.2. The NFKβ1, CASP8, PAR1 and IL4 INDELs were associated with leprosy susceptibility, while NFKβ1, CASP8, PAR1 and CYP19A1 were associated with the MB (Multibacilary) clinical form of leprosy. CONCLUSIONS/SIGNIFICANCE NFKβ1 [rs28362491], CASP8 [rs3834129], PAR1 [rs11267092] and IL4 [rs79071878] genes are potential markers for susceptibility to leprosy development, while the INDELs in NFKβ1, CASP8, PAR1 and CYP19A1 (rs11575899) are potential markers for the severe clinical form MB. Moreover, all of these markers are influenced by genetic ancestry, and European contribution increases the risk to leprosy development, in other hand an increase in African contribution generates protection against leprosy.
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Affiliation(s)
- Pablo Pinto
- Laboratório de Genética Humana e Médica, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brasil
- Núcleo de Pesquisas em Oncologia - NPO, Universidade Federal do Pará, Belém, Pará, Brasil
| | - Claudio Salgado
- Laboratório de Dermatoimunologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brasil
| | | | - Sidney Santos
- Laboratório de Genética Humana e Médica, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brasil
- Núcleo de Pesquisas em Oncologia - NPO, Universidade Federal do Pará, Belém, Pará, Brasil
| | - Ândrea Ribeiro-dos-Santos
- Laboratório de Genética Humana e Médica, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brasil
- Núcleo de Pesquisas em Oncologia - NPO, Universidade Federal do Pará, Belém, Pará, Brasil
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Alvarado-Arnez LE, Amaral EP, Sales-Marques C, M. B. Durães S, C. Cardoso C, Nunes Sarno E, G. Pacheco A, C. F. Lana F, Ozório Moraes M. Association of IL10 Polymorphisms and Leprosy: A Meta-Analysis. PLoS One 2015; 10:e0136282. [PMID: 26340474 PMCID: PMC4560376 DOI: 10.1371/journal.pone.0136282] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 08/02/2015] [Indexed: 11/19/2022] Open
Abstract
Leprosy is a chronic infectious disease that depends on the interplay of several factors. Single nucleotide polymorphisms (SNPs) in host immune related genes have been consistently suggested as participants in susceptibility towards disease. Interleukin-10 (IL-10) is a crucial immunomodulatory cytokine in mycobacterial pathogenesis and especially the -819C>T SNP (rs1800871) has been tested in several case-control studies indicating association with leprosy risk, although a recent consensus estimate is still missing. In this study, we evaluated the association of the -819C>T SNP and leprosy in two new Brazilian family-based populations. Then, we performed meta-analysis for this polymorphism summarizing published studies including these Brazilian family-based groups. Finally, we also retrieved published studies for other distal and proximal IL10 polymorphisms: -3575 T>A (rs1800890), -2849 G>A (rs6703630), -2763 C>A (rs6693899), -1082 G>A (rs1800896) and -592 C>A (rs1800872). Results from meta-analysis supported a significant susceptibility association for the -819T allele, with pooled Odds Ratio of 1.22 (CI = 1.11–1.34) and P-value = 3x10–5 confirming previous data. This result remained unaltered after inclusion of the Brazilian family-based groups (OR = 1.2, CI = 1.10–1.31, P-value = 2x10–5). Also, meta-analysis confirmed association of -592 A allele and leprosy outcome (OR = 1.24, CI = 1.03–1.50, P-value = 0.02). In support of this, linkage disequilibrium analysis in 1000 genomes AFR, EUR, ASN and AMR populations pointed to r2 = 1.0 between the -592C>A and -819C>T SNPs. We found no evidence of association for the other IL10 polymorphisms analyzed for leprosy outcome. Our results reinforce the role of the -819C>T as a tag SNP (rs1800871) and its association with leprosy susceptibility.
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Affiliation(s)
| | - Evaldo P. Amaral
- Departamento de Enfermagem Materno-Infantil e Saúde Pública, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Sandra M. B. Durães
- Departamento de Medicina Clínica, Serviço de Dermatologia da Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Cynthia C. Cardoso
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Euzenir Nunes Sarno
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | | | - Francisco C. F. Lana
- Departamento de Enfermagem Materno-Infantil e Saúde Pública, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Milton Ozório Moraes
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
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