101
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Gomes R, Soares BL, Felicio PS, Michelli R, Netto CBO, Alemar B, Ashton-Prolla P, Palmero EI, Moreira MÂM. Haplotypic characterization of BRCA1 c.5266dupC, the prevailing mutation in Brazilian hereditary breast/ovarian cancer. Genet Mol Biol 2020. [PMID: 32453342 PMCID: PMC7250276 DOI: 10.1590//1678-4685-gmb-2019-0072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Specific pathogenic mutations associated with breast cancer development can vary between ethnical groups. One example is BRCA1 c.5266dupC that was first described as a founder mutation in the Ashkenazi Jewish population, but was later also found in other populations. In Brazil, this mutation corresponds to 20% of pathogenic BRCA1 variants reported. Our objective was to investigate the haplotype component of a group of Brazilian families who inherited c.5266dupC in the BRCA1 gene and to verify the ancestry contribution from European, African, and Amerindian origins. Fourteen probands carrying c.5266dupC and 16 relatives (carriers and non-carriers) were investigated. The same haplotype was observed segregating within all the families analyzed, revealing no recombinants in a region of 0.68 Mb. Ancestry analysis demonstrated that the European component was predominant among probands. The BRCA1 c.5266dupC analysis indicates that there was a founder effect in the Brazilian population.
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Affiliation(s)
- Renan Gomes
- Instituto Nacional de Câncer, Programa de Genética, Rio de Janeiro, RJ, Brazil
| | | | - Paula Silva Felicio
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia Molecular, Barretos, SP, Brazil
| | - Rodrigo Michelli
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia Molecular, Barretos, SP, Brazil
| | - Cristina B O Netto
- Hospital de Clínicas de Porto Alegre, Serviço de Genética Médica, Porto Alegre, RS, Brazil
| | - Barbara Alemar
- Hospital de Clínicas de Porto Alegre, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Patrícia Ashton-Prolla
- Hospital de Clínicas de Porto Alegre, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Edenir Inêz Palmero
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia Molecular, Barretos, SP, Brazil.,Faculdade de Ciências de Saúde de Barretos Dr. Paulo Prata (FACISB), Barretos, SP, Brazil
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102
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Vicente ALSA, Crovador CS, Macedo G, Scapulatempo-Neto C, Reis RM, Vazquez VL. Mutational Profile of Driver Genes in Brazilian Melanomas. J Glob Oncol 2020; 5:1-14. [PMID: 31756131 PMCID: PMC6882511 DOI: 10.1200/jgo.19.00169] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
PURPOSE Mutation testing of the key genes involved in melanoma oncogenesis is now mandatory for the application of targeted therapeutics. However, knowledge of the mutational profile of melanoma remains largely unknown in Brazil. PATIENTS AND METHODS In this study, we assessed the mutation status of melanoma driver genes BRAF, NRAS, TERT, KIT, and PDGFRA in a cohort of 459 patients attended at Barretos Cancer Hospital between 2001 and 2012. We used polymerase chain reaction followed by Sanger sequencing to analyze the hot spot mutations of BRAF exon 15 (V600E), NRAS (codons 12/13 and 61), TERT (promoter region), KIT (exons 9, 11, 13, and 17), and PDGFRA (exons 12, 14, and 18) in tumors. The mutational profile was investigated for associations with demographic, histopathologic, and clinical features of the disease. RESULTS The nodular subtype was most frequent (38.9%) followed by the superficial spreading subtype (34.4%). The most frequent tumor location was in the limbs (50.0%). The mutation rates were 34.3% for TERT and 34.1% for BRAF followed by NRAS (7.9%), KIT (6.2%), and PDGFRA (2.9%). The BRAF (P = .014) and TERT (P = .006) mutations were associated with younger patients and with different anatomic locations, particularly in the trunk, for the superficial spreading and nodular subtypes, respectively (P = .0001 for both). PDGFRA mutations were associated with black skin color (P = .023) and TERT promoter mutations with an absence of ulceration (P = .037) and lower levels of lactate dehydrogenase. There was no association between patient survival rates and mutational status. CONCLUSION The similar mutational profile we observe in melanomas in Brazil compared with other populations will help to guide precision medicine in this country.
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Affiliation(s)
| | | | | | | | - Rui M Reis
- Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga and Guimarães, Portugal
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103
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Gomes R, Soares BL, Felicio PS, Michelli R, Netto CBO, Alemar B, Ashton-Prolla P, Palmero EI, Moreira MÂM. Haplotypic characterization of BRCA1 c.5266dupC, the prevailing mutation in Brazilian hereditary breast/ovarian cancer. Genet Mol Biol 2020; 43:e20190072. [PMID: 32453342 PMCID: PMC7250276 DOI: 10.1590/1678-4685-gmb-2019-0072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/23/2019] [Indexed: 06/11/2023] Open
Abstract
Specific pathogenic mutations associated with breast cancer development can vary between ethnical groups. One example is BRCA1 c.5266dupC that was first described as a founder mutation in the Ashkenazi Jewish population, but was later also found in other populations. In Brazil, this mutation corresponds to 20% of pathogenic BRCA1 variants reported. Our objective was to investigate the haplotype component of a group of Brazilian families who inherited c.5266dupC in the BRCA1 gene and to verify the ancestry contribution from European, African, and Amerindian origins. Fourteen probands carrying c.5266dupC and 16 relatives (carriers and non-carriers) were investigated. The same haplotype was observed segregating within all the families analyzed, revealing no recombinants in a region of 0.68 Mb. Ancestry analysis demonstrated that the European component was predominant among probands. The BRCA1 c.5266dupC analysis indicates that there was a founder effect in the Brazilian population.
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Affiliation(s)
- Renan Gomes
- Instituto Nacional de Câncer, Programa de Genética, Rio de Janeiro,
RJ, Brazil
| | | | - Paula Silva Felicio
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia
Molecular, Barretos, SP, Brazil
| | - Rodrigo Michelli
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia
Molecular, Barretos, SP, Brazil
| | - Cristina B. O. Netto
- Hospital de Clínicas de Porto Alegre, Serviço de Genética Médica,
Porto Alegre, RS, Brazil
| | - Barbara Alemar
- Hospital de Clínicas de Porto Alegre, Laboratório de Medicina
Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de
Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre,
RS, Brazil
| | - Patrícia Ashton-Prolla
- Hospital de Clínicas de Porto Alegre, Laboratório de Medicina
Genômica, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de
Genética, Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre,
RS, Brazil
| | - Edenir Inêz Palmero
- Hospital de Cancer de Barretos, Centro de Pesquisa em Oncologia
Molecular, Barretos, SP, Brazil
- Faculdade de Ciências de Saúde de Barretos Dr. Paulo Prata (FACISB),
Barretos, SP, Brazil
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104
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Castro MDS, Issler HC, Gelmini GF, de Miranda BLM, Calonga-Solís V, Schmidt AH, Stein A, Bicalho MDG, Petzl-Erler ML, Augusto DG. High-resolution characterization of 12 classical and non-classical HLA loci in Southern Brazilians. HLA 2020; 93:80-88. [PMID: 30740929 DOI: 10.1111/tan.13488] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 02/05/2019] [Accepted: 02/08/2019] [Indexed: 11/28/2022]
Abstract
The human leukocyte antigen (HLA) are the most polymorphic genes in the human genome. Because of their importance for antigen recognition, HLA molecules play a central role in host defense and graft rejection upon transplantation. The aim of this study was to characterize allelic diversity of the classical HLA genes HLA-A, -B, -C, -DRA, -DRB1, -DQA1, -DQB1, -DPA1, -DPB1, and the non-classical class I genes HLA-E, -F and -G at high-resolution for a population of predominantly European ancestry from Curitiba, Brazil. Genotyping of 108 individuals was performed by next-generation sequencing on the MiSeq platform and also by Sanger sequencing. The genotype distributions of all loci were in accordance with Hardy-Weinberg equilibrium (P > 0.05) and a total of 202 HLA variants at second field resolution were observed for the 12 loci. The strongest linkage disequilibrium (r2 = 1.0, P < 10-5 ) was observed for the following pairs of alleles: HLA-B*42:01:01 ~ HLA-DRB1*03:02:01; HLA-B*14:02:01 ~ HLA-C*08:02:01; B*42:01:01 ~ HLA-C*17:01:01; HLA-DRB1*03:01:01 ~ HLA-DQB1*02:01:01 ~ DRB1*03:01:01 ~ HLA-DQB1*02:01:01; DRB1*13:01:01~ HLA-DQB1*06:03:01 and HLA-DRB1*09:01:02 ~ HLA-DQA1*03:02. This is the first study to characterize all 12 HLA genes at high resolution in a single population. On the basis of the allelic frequencies of worldwide populations and principal component analysis, we confirmed the similarity of the study population to European and other Euro-descendant populations.
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Affiliation(s)
- Mariana de Sousa Castro
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Hellen C Issler
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Geórgia F Gelmini
- Laboratório de Imunogenética e Histocompatibilidade, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Bruna L M de Miranda
- Laboratório de Imunogenética e Histocompatibilidade, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Verónica Calonga-Solís
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | | | | | - Maria da Graça Bicalho
- Laboratório de Imunogenética e Histocompatibilidade, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Maria Luiza Petzl-Erler
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Danillo G Augusto
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
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105
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Höher G, Rodrigues MMDO, Waskow G, Agnes G, Von Burg PV, Onsten T, Fiegenbaum M, Almeida S. Identification of ACKR1 variants associated with altered Duffy phenotype expression in blood donors from southern Brazil. Transfus Apher Sci 2020; 59:102768. [PMID: 32276863 DOI: 10.1016/j.transci.2020.102768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/18/2020] [Accepted: 03/22/2020] [Indexed: 11/18/2022]
Abstract
The atypical chemokine receptor 1 gene (ACKR1) is responsible for the clinically significant Duffy blood group. The main antigens of this system, Fya and Fyb, can be related to a null or weak expression of the DARC protein. In the present work, we aimed to identify ACKR1 gene variants in blood donors from southern Brazil based on discrepancies between their serological and molecular typing results. Then, we analyzed the association of these variants with the expression of the Duffy phenotype. The Fy antigen types were determined via hemagglutination and real-time PCR (c.125 G > A, c.265C > T and c.-67T > C SNPs) tests in a sample composed of 382 regular repetitive voluntary blood donors to the Blood Bank of Hospital de Clínicas de Porto Alegre. An inconclusive correlation between phenotype-genotype analyses was found in 11 (2.88 %) donors, and the entire ACKR1 gene was sequenced in these samples. Our investigation found 11 genetic variants, four of which (c.-541C > T, c.21 + 150C > T, c.22-58A > G, and c.298 G > A SNPs) seem to have putative functional effects on the structure and expression of DARC undertaken for in silico analysis (SIFT, PolyPhen-2 and RegulomeDB). Molecular events can result in apparent discrepancies between red cell genotypes and phenotypes. Our findings provided insight into the molecular background of FY antigens to improve technical approaches for red cell genotyping.
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Affiliation(s)
- Gabriela Höher
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | | | - Gabriela Waskow
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Grasiela Agnes
- Laboratório de Biologia Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Pâmela Victoria Von Burg
- Laboratório de Biologia Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Tor Onsten
- Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Brazil
| | - Marilu Fiegenbaum
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Silvana Almeida
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil.
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106
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Santos LRD, Almeida JFF, Pimassoni LHS, Morelato RL, Paula FD. The combined risk effect among BIN1, CLU, and APOE genes in Alzheimer's disease. Genet Mol Biol 2020; 43:e20180320. [PMID: 31469155 PMCID: PMC7198034 DOI: 10.1590/1678-4685-gmb-2018-0320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 04/11/2019] [Indexed: 01/01/2023] Open
Abstract
Genome-wide associations studies (GWAS) are detecting new variants associated
with late-onset of Alzheimer’s disease (LOAD), a multifactorial
neurodegenerative disorder. The variants rs744373 BIN1,
rs11136000 CLU and rs3764650 ABCA7 uncovered
by GWAS led to different AD pathways, such as metabolism, trafficking and
endocytosis of lipids and inflammation. However, most of the association studies
did not replicate these variants with significance. This could be due to a small
power effect evident when these variants are tested independently with LOAD.
Therefore, we aimed to investigate whether the combination of different variants
would additively modify the risk of association with LOAD that is observed in
GWAS. We performed an association study testing pairwise variants in metabolism,
trafficking and endocytosis of lipid (rs429358 and rs7412 APOE,
rs744373 BIN1, rs3764650 ABCA7 and rs11136000
CLU) pathways with LOAD in samples from southeastern
Brazil. Our data suggest a risk effect for LOAD between APOE
with CLU and APOE with BIN1
genes.
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Affiliation(s)
- Lígia Ramos Dos Santos
- Universidade Federal do Espírito Santo, Centro de Ciências Humanas e Naturais, Departamento de Ciências Biológicas, Núcleo de Genética Humana e Molecular, Vitória, ES, Brazil
| | - Jucimara Ferreira Figueiredo Almeida
- Universidade Federal do Espírito Santo, Centro de Ciências Humanas e Naturais, Departamento de Ciências Biológicas, Núcleo de Genética Humana e Molecular, Vitória, ES, Brazil.,Universidade Federal do Espírito Santo, Programa de Pós-Graduação em Biotecnologia, Vitória, ES, Brazil
| | | | - Renato Lírio Morelato
- Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória, Vitória, ES, Brazil.,Hospital da Santa Casa de Misericórdia de Vitória, Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória, Vitória, ES, Brazil
| | - Flavia de Paula
- Universidade Federal do Espírito Santo, Centro de Ciências Humanas e Naturais, Departamento de Ciências Biológicas, Núcleo de Genética Humana e Molecular, Vitória, ES, Brazil.,Universidade Federal do Espírito Santo, Programa de Pós-Graduação em Biotecnologia, Vitória, ES, Brazil
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107
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Durães RO, Berardinelli GN, da Costa AM, Scapulatempo-Neto C, Pereira R, Oliveira MA, Guimarães DP, Reis RM. Role of Genetic Ancestry in 1,002 Brazilian Colorectal Cancer Patients From Barretos Cancer Hospital. Front Oncol 2020; 10:145. [PMID: 32195168 PMCID: PMC7065467 DOI: 10.3389/fonc.2020.00145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/27/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Colorectal cancer (CRC) is the third most frequent and the second deadliest cancer worldwide. The ethnic structure of the population has been gaining prominence as a cancer player. The purpose of this study was to determine the genetic ancestry of Brazilian CRC patients. Moreover, we intended to interrogate its impact on patients' clinicopathological features. Methods: Retrospective observational cohort study with 1,002 patients with CRC admitted from 2000 to 2014 at Barretos Cancer Hospital. Following tumor DNA isolation, genetic ancestry was assessed using a specific panel of 46 ancestry informative markers. Survival rates were obtained by the Kaplan–Meier method, and the log-rank test was used to compare the survival curves. Multivariable Cox proportional regression models were used to estimate hazard ratios (HRs). Results: We observed considerable admixture in the genetic composition, with the following average proportions: European 74.2%, African 12.7%, Asian 6.5%, and Amerindian 6.6%. The multivariate analysis for cancer-specific survival showed that clinical stage, lymphovascular invasion, and the presence of recurrence were associated with an increased relative risk of death from cancer (p < 0.05). High African proportion was associated with younger age at diagnosis, while high Amerindian proportion was associated with the mucinous histological subtype. Conclusions: This represents the larger assessment of genetic ancestry in a population of Brazilian patients with CRC. Brazilian CRC patients exhibited similar clinicopathological features as described in Western countries. Impact: Genetic ancestry components corroborated the significant admixture, and importantly, patients with high African proportion develop cancer at a younger age.
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Affiliation(s)
- Ronilson Oliveira Durães
- Molecular Oncology Research Centre, Barretos Cancer Hospital, Barretos, Brazil.,Department of Medical Oncology, Barretos Cancer Hospital, Barretos, Brazil
| | | | | | - Cristovam Scapulatempo-Neto
- Molecular Oncology Research Centre, Barretos Cancer Hospital, Barretos, Brazil.,Department of Pathology, Barretos Cancer Hospital, Barretos, Brazil
| | - Rui Pereira
- IPATIMUP (Institute of Molecular Pathology and Immunology of the University of Porto), Porto, Portugal.,i3S (Instituto de Investigação e Inovação em Saúde, Universidade Do Porto), Porto, Portugal
| | | | - Denise Peixoto Guimarães
- Molecular Oncology Research Centre, Barretos Cancer Hospital, Barretos, Brazil.,Endoscopy Department, Barretos Cancer Hospital, Barretos, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Centre, Barretos Cancer Hospital, Barretos, Brazil.,Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal
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108
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Chung-Filho AA, Brisson GD, Vieira TMF, Chagas-Neto P, Soares-Lima SC, Pombo-de-Oliveira MS. MTHFR rs1801133 polymorphism is associated with increased risk of B-cell precursor lymphoblastic leukaemia with recurrent genetic aberrations of fetal origin. Cancer Epidemiol 2020; 65:101693. [PMID: 32135505 DOI: 10.1016/j.canep.2020.101693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/31/2020] [Accepted: 02/22/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Childhood acute lymphoblastic leukaemia (ALL) is a heterogeneous disease associated with multiple risk factors including genetic susceptibility. Polymorphisms in folate genes have been associated with a protective effect against ALL, although some studies contradict these findings. We aimed to test whether there is an association between the MTHFR rs1801133 variant and the occurrence of B-cell precursor ALL (BCP-ALL) taking in account molecularly distinct subtypes of fetal origin. METHODS We performed a case-control genotyping study with 2067 samples, 1309 ALL and 758 controls, from children aged ≤ 15 years for MTHFR rs1801133 polymorphism. Risk associations were calculated by odds ratios estimated with unconditional logistic regression, adjusted for frequency-matched ethnic groups. RESULTS Overall, MTHFR rs1801133 does not impact ALL risk in children with more than 6 years of age. A significant positive association for MTHFR rs1801133 variant was found for ALL with KMT2A-r in the dominant model (adj. OR, 1.48, 95 % CI, 1.01-2.17), while ETV6-RUNX1 and Hyperdiploid subgroups have shown a borderline effect (adj. OR, 1.33, 95 % CI, 0.99-1.78). CONCLUSIONS The polymorphism MTHFR rs1801133 increased the risk of infant ALL in Brazilian population.
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Affiliation(s)
- Alython Araujo Chung-Filho
- Pediatric Hematology-Oncology Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Gisele Dallapicola Brisson
- Pediatric Hematology-Oncology Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Tállita Mecianny Farias Vieira
- Pediatric Hematology-Oncology Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Paulo Chagas-Neto
- Pediatric Hematology-Oncology Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Sheila Coelho Soares-Lima
- Molecular Carcinogenesis Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil.
| | - Maria S Pombo-de-Oliveira
- Pediatric Hematology-Oncology Research Program, Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, Brazil.
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109
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Viana PCS, Mendes ACDM, Delgado LF, Tostes G, Gonçalves L, Gonçalves Júnior H, Raposo NRB, Vitral GSF, Gerheim PSAS. Association between Single Nucleotide Polymorphisms and Endometriosis in a Brazilian Population. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2020; 42:146-151. [PMID: 32232822 PMCID: PMC10798272 DOI: 10.1055/s-0040-1708460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/21/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE To investigate the association between genetic polymorphisms in candidate genes or candidate regions and the development of endometriosis in Brazilian women. METHODS A total of 30 women between 25 and 64 years old with a diagnosis of endometriosis participated in the present study, as well as 30 matched control women from the same age group, asymptomatic and without family history of the disease. The patients genotypic and allelic frequencies of polymorphisms in the GREB1 gene (rs13394619) and in the intergenic region at position 7p15.2 (rs12700667) were analyzed and compared. RESULTS There was no significant difference in the frequency of genotypes for the A > G polymorphism (rs13394619) in the GREB1 gene between the two groups. However, the distribution frequencies of the genotypes for the A > G polymorphism (rs12700667) in an intergenic region on chromosome 7 were different for control patients and for patients with endometriosis, with higher frequency of the AG genotype compared to the GG between patients with the disease (odds ratio [OR] = 3.49; confidence interval [CI] = 1.47-8.26). CONCLUSION The present study suggests that the polymorphism in the intergenic region of chromosome 7 is associated with the risk of developing endometriosis in a population of Brazilian women from Juiz de Fora.
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Affiliation(s)
- Paula Coelho Silva Viana
- Universidade Federal de Juiz de Fora, Campus Governador Valadares, Governador Valadares, MG, Brazil
| | | | - Lucas Farah Delgado
- Universidade Federal de Juiz de Fora, Campus Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Gustavo Tostes
- Universidade Federal de Juiz de Fora, Campus Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Lidiane Gonçalves
- Universidade Federal de Juiz de Fora, Campus Juiz de Fora, Juiz de Fora, MG, Brazil
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110
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Achatz MI, Caleffi M, Guindalini R, Marques RM, Nogueira-Rodrigues A, Ashton-Prolla P. Recommendations for Advancing the Diagnosis and Management of Hereditary Breast and Ovarian Cancer in Brazil. JCO Glob Oncol 2020; 6:439-452. [PMID: 32155091 PMCID: PMC7113069 DOI: 10.1200/jgo.19.00170] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2020] [Indexed: 12/20/2022] Open
Abstract
PURPOSE The objective of this review was to address the barriers limiting access to genetic cancer risk assessment and genetic testing for individuals with suspected hereditary breast and ovarian cancer (HBOC) through a review of the diagnosis and management steps of HBOC. METHODS A selected panel of Brazilian experts in fields related to HBOC was provided with a series of relevant questions to address before the multiday conference. During this conference, each narrative was discussed and edited by the entire group, through numerous drafts and rounds of discussion, until a consensus was achieved. RESULTS The authors propose specific and realistic recommendations for improving access to early diagnosis, risk management, and cancer care of HBOC specific to Brazil. Moreover, in creating these recommendations, the authors strived to address all the barriers and impediments mentioned in this article. CONCLUSION There is a great need to expand hereditary cancer testing and counseling in Brazil, and changing current policies is essential to accomplishing this goal. Increased knowledge and awareness, together with regulatory actions to increase access to this technology, have the potential to improve patient care and prevention and treatment efforts for patients with cancer across the country.
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Affiliation(s)
| | - Maira Caleffi
- Nucleo Mama Porto Alegre and Associação Hospitalar Moinhos de Vento, Porto Alegre, Brazil
| | - Rodrigo Guindalini
- Oncologia D’or, Rede D’or São Luiz, Brazil
- Centro de Investigação Translacional em Oncologia, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Renato Moretti Marques
- Programa da Saúde da Mulher, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Centro de Oncologia e Hematologia, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Angelica Nogueira-Rodrigues
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Grupo Brasileiro de Oncologia Ginecológica, Belo Horizonte, Brazil
- DOM Oncologia, Minas Gerais, Brazil
| | - Patricia Ashton-Prolla
- Departmento de Genética, Universidade Federal do Rio Grande do Sul
- Laboratório de Medicina Genômica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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Castro LP, Sahbatou M, Kehdy FSG, Farias AA, Yurchenko AA, de Souza TA, Rosa RCA, Mendes-Junior CT, Borda V, Munford V, Zanardo ÉA, Chehimi SN, Kulikowski LD, Aquino MM, Leal TP, Tarazona-Santos E, Chaibub SC, Gener B, Calmels N, Laugel V, Sarasin A, Menck CFM. The Iberian legacy into a young genetic xeroderma pigmentosum cluster in central Brazil. Mutat Res 2020; 852:503164. [PMID: 32265042 DOI: 10.1016/j.mrgentox.2020.503164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 10/24/2022]
Abstract
In central Brazil, in the municipality of Faina (state of Goiás), the small and isolated village of Araras comprises a genetic cluster of xeroderma pigmentosum (XP) patients. The high level of consanguinity and the geographical isolation gave rise to a high frequency of XP patients. Recently, two founder events were identified affecting that community, with two independent mutations at the POLH gene, c.764 + 1 G > A (intron 6) and c.907 C > T; p.Arg303* (exon 8). These deleterious mutations lead to the xeroderma pigmentosum variant syndrome (XP-V). Previous reports identified both mutations in other countries: the intron 6 mutation in six patients (four families) from Northern Spain (Basque Country and Cantabria) and the exon 8 mutation in two patients from different families in Europe, one of them from Kosovo. In order to investigate the ancestry of the XP patients and the age for these mutations at Araras, we generated genotyping information for 22 XP-V patients from Brazil (16), Spain (6) and Kosovo (1). The local genomic ancestry and the shared haplotype segments among the patients showed that the intron 6 mutation at Araras is associated with an Iberian genetic legacy. All patients from Goiás, homozygotes for intron 6 mutation, share with the Spanish patients identical-by-descent (IBD) genomic segments comprising the mutation. The entrance date for the Iberian haplotype at the village was calculated to be approximately 200 years old. This result is in agreement with the historical arrival of Iberian individuals at the Goiás state (BR). Patients from Goiás and the three families from Spain share 1.8 cM (family 14), 1.7 cM (family 15), and a more significant segment of 4.7 cM within family 13. On the other hand, the patients carrying the exon 8 mutation do not share any specific genetic segment, indicating an old genetic distance between them or even no common ancestry.
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Affiliation(s)
- L P Castro
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - M Sahbatou
- Foundation Jean Dausset - CEPH, Paris, France
| | - F S G Kehdy
- Leprosy Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - A A Farias
- Human Genome and Stem-Cell Center, Institute of Biosciences, University of São Paulo (USP), Sao Paulo, Brazil; Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo (USP), São Paulo, Brazil
| | - A A Yurchenko
- Inserm U981, Gustave Roussy Cancer Campus, Université Paris Saclay, Villejuif, France
| | - T A de Souza
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - R C A Rosa
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - C T Mendes-Junior
- Department of Chemistry, Forensic and Genomics Research Laboratory, Faculty of Philosophy, Sciences and Letters, University of São Paulo, Ribeirão Preto, Brazil
| | - V Borda
- National Laboratory for Scientific Computation (LNCC), Petropolis, Rio de Janeiro, Brazil
| | - V Munford
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - É A Zanardo
- Cytogenomics Laboratory, Department of Pathology, School of Medicine, University of São Paulo (FMUSP), São Paulo, Brazil
| | - S N Chehimi
- Cytogenomics Laboratory, Department of Pathology, School of Medicine, University of São Paulo (FMUSP), São Paulo, Brazil
| | - L D Kulikowski
- Cytogenomics Laboratory, Department of Pathology, School of Medicine, University of São Paulo (FMUSP), São Paulo, Brazil
| | - M M Aquino
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - T P Leal
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - E Tarazona-Santos
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - S C Chaibub
- General Hospital of Goiania, Goiania, Brazil
| | - B Gener
- Osakidetza Basque Health Service, Cruces University Hospital. Department of Genetics, Bizkaia, Spain; Biocruces Bizkaia Health Research Institute, Bizkaia, Spain
| | - N Calmels
- Laboratory of Medical Genetics, Institute of Medical Genetics of Alsace (IGMA), Strasbourg, France
| | - V Laugel
- Laboratory of Medical Genetics, Institute of Medical Genetics of Alsace (IGMA), Strasbourg, France
| | - A Sarasin
- UMR8200 CNRS, Gustave Roussy Institute, University Paris-Saclay, Villejuif, France
| | - C F M Menck
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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Leitão LPC, Souza TP, Rodrigues JCG, Fernandes MR, Santos S, Santos NPC. The Metabolization Profile of the CYP2D6 Gene in Amerindian Populations: A Review. Genes (Basel) 2020; 11:genes11030262. [PMID: 32121156 PMCID: PMC7140882 DOI: 10.3390/genes11030262] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/04/2020] [Accepted: 02/14/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND the CYP2D6 gene is clinically important and is known to have a number of variants. This gene has four distinct metabolization profiles that are determined by the different allelic forms present in the individual. The relative frequency of these profiles varies considerably among human populations around the world. Populations from more isolated regions, such as Native Americans, are still relatively poorly studied, however. Even so, recent advances in genotyping techniques and increasing interest in the study of these populations has led to a progressive increase in publication rates. Given this, the review presented here compiled the principal papers published on the CYP2D6 gene in Amerindian populations to determine the metabolic profile of this group. METHODS a systematic literature review was conducted in three scientific publication platforms (Google Scholar, Science Direct, and Pubmed). The search was run using the keywords "CYP2D6 Amerindians" and "CYP2D6 native Americans". RESULTS a total of 13 original papers met the inclusion criteria established for this study. All the papers presented frequencies of the different CYP2D6 alleles in Amerindian populations. Seven of the papers focused specifically on Amerindian populations from Mexico, while the others included populations from Argentina, Chile, Costa Rica, Mexico, Paraguay, Peru, and the United States. The results of the papers reviewed here showed that the extensive metabolization profile was the most prevalent in all Amerindian populations studied to date, followed by the intermediate, slow, and ultra-rapid, in that order. CONCLUSION the metabolization profiles of the Amerindian populations reviewed in the present study do not diverge in any major way from those of other populations from around the world. Given the paucity of the data available on Amerindian populations, further research is required to better characterize the metabolization profile of these populations to ensure the development of adequate therapeutic strategies.
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Affiliation(s)
- Luciana P. C. Leitão
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
| | - Tatiane P. Souza
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
| | - Juliana C. G. Rodrigues
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
| | - Marianne R. Fernandes
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
| | - Sidney Santos
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belém, Pará 66077-830, Brazil
| | - Ney P. C. Santos
- Oncology Research Center, Federal University of Pará, Belém, Pará 66073, Brazil; (L.P.C.L.); (T.P.S.); (J.C.G.R.); (M.R.F.); (S.S.)
- Laboratory of Human and Medical Genetics, Institute of Biological Science, Federal University of Pará, Belém, Pará 66077-830, Brazil
- Correspondence:
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Tagliari CFDS, de Oliveira CN, Vogel GM, da Silva PB, Linden R, Lazzaretti RK, Notti RK, Sprinz E, Mattevi VS. Investigation of SIRT1 gene variants in HIV-associated lipodystrophy and metabolic syndrome. Genet Mol Biol 2020; 43:e20190142. [PMID: 32106282 PMCID: PMC7198015 DOI: 10.1590/1678-4685-gmb-2019-0142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 11/21/2019] [Indexed: 01/17/2023] Open
Abstract
HIV-infected individuals on chronic use of highly active antiretroviral therapy (HAART) are more likely to develop adipose tissue and metabolic disorders, such as lipodystrophy (LD) and metabolic syndrome (MetS). The development of these phenotypes is known to be multifactorial. Thus, variants in genes implicated in adipogenesis and lipid metabolism may increase susceptibility to LD and MetS. Sirtuin 1 (SIRT1) may influence the outcome of these disturbances due to its role in the regulation of transcription factors involved in energy regulation. Therefore, we genotyped four polymorphisms located in SIRT1 (rs2273773 T>C, rs12413112 G>A, rs7895833 A>G, rs12049646 T>C) in 832 HIV-infected patients receiving HAART by real-time polymerase chain reaction. The prevalence of LD was 55.8% and MetS was 35.3%. Lipoatrophy was the most prevalent subtype in all samples (38.0%) and showed significant difference between white and non-white individuals (P = 0.002). None of the genetic variants investigated in SIRT1 was associated with LD and MetS. White individuals and those in longer time of HAART use were more likely to develop LD. We concluded that these SIRT1 polymorphisms are not predictive factors to the development of lipodystrophy and metabolic syndrome in HIV-infected individuals from Brazil.
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Affiliation(s)
| | - Cáren Nunes de Oliveira
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Laboratório de Biologia Molecular, Porto Alegre, RS, Brazil
| | - Greice Meyer Vogel
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Laboratório de Biologia Molecular, Porto Alegre, RS, Brazil
| | - Patrícia Baptista da Silva
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Laboratório de Biologia Molecular, Porto Alegre, RS, Brazil
| | - Rafael Linden
- Universidade Feevale, Instituto de Ciências da Saúde, Laboratório de Toxicologia Analítica, Novo Hamburgo, RS, Brazil
| | - Rosmeri Kuhmmer Lazzaretti
- Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Departamento de Doenças Infecciosas, Porto Alegre, RS, Brazil
| | - Regina Kuhmmer Notti
- Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Departamento de Doenças Infecciosas, Porto Alegre, RS, Brazil
| | - Eduardo Sprinz
- Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Departamento de Doenças Infecciosas, Porto Alegre, RS, Brazil
| | - Vanessa Suñé Mattevi
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Laboratório de Biologia Molecular, Porto Alegre, RS, Brazil
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Goes RA, Lopes LR, Cossich VRA, de Miranda VAR, Coelho ON, do Carmo Bastos R, Domenis LAM, Guimarães JAM, Grangeiro-Neto JA, Perini JA. Musculoskeletal injuries in athletes from five modalities: a cross-sectional study. BMC Musculoskelet Disord 2020; 21:122. [PMID: 32093651 PMCID: PMC7041260 DOI: 10.1186/s12891-020-3141-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/17/2020] [Indexed: 11/30/2022] Open
Abstract
Background Musculoskeletal injuries (MSK-I) are a serious problem in sports medicine. Modifiable and non-modifiable factors are associated with susceptibility to these injuries. Thus, the aim of this study was to describe the prevalence of and identify the factors associated with MSK-I, including tendinopathy and joint and muscle injuries, in athletes. Methods In this cross-sectional observational study, 627 athletes from rugby (n = 225), soccer (n = 172), combat sports (n = 86), handball (n = 82) and water polo (n = 62) were recruited at different sports training centres and competitions. Athlete profiles and the prevalence of MSK-I were assessed using a self-reported questionnaire. Only previous MSK-I with imaging confirmation and/or a positive physical exam by a specialized orthopaedist were considered. The association of the epidemiological, clinical and sports profiles of athletes with MSK-I was evaluated by a logistic regression model. Results The mean age was 25 ± 6 years, and 60% of the athletes were male. The epidemiological, clinical and sports profiles of the athletes were different for the five sport groups. The MSK-I prevalence among all athletes was 76%, with 55% of MSK-I occurring in a joint, 48% occurring in a muscle and 30% being tendinopathy, and 19% of athletes had three investigated injuries. The MSK-I prevalence and injury locations were significantly different among sport groups. There was a predominance of joint injury in combat sports athletes (77%), muscle injury in handball athletes (67%) and tendinopathy in water polo athletes (52%). Age (≥30 years) was positively associated with joint (OR = 5.2 and 95% CI = 2.6–10.7) and muscle (OR = 4.9 and 95% CI = 2.4–10.1) injuries and tendinopathy (OR = 4.1 and 95% CI = 1.9–9.3). Conclusion There is a high prevalence of tendinopathy and joint and muscle injuries among rugby, soccer, combat sports, handball and water polo athletes. The analysis of associated factors (epidemiological, clinical and sports profiles) and the presence of MSK-I in athletes suggests an approximately 4–5-fold increased risk for athletes ≥30 years of age. The identification of modifiable and non-modifiable factors can contribute to implementing surveillance programmes for MSK-I prevention.
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Affiliation(s)
- Rodrigo Araújo Goes
- Centro de Trauma do Esporte, Instituto Nacional de Traumatologia e Ortopedia (INTO), Rio de Janeiro, Brazil
| | - Lucas Rafael Lopes
- Research Division, Instituto Nacional de Traumatologia e Ortopedia, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil.,Laboratório de Pesquisa de Ciências Farmacêuticas, Centro Universitário Estadual da Zona Oeste (UEZO), Rio de Janeiro, Brazil.,Programa de Pós-graduação em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Victor Rodrigues Amaral Cossich
- Research Division, Instituto Nacional de Traumatologia e Ortopedia, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil.,Escola de Educação Física e Desportos (EEFD), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | | | - Olívia Nogueira Coelho
- Escola de Educação Física e Desportos (EEFD), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Ricardo do Carmo Bastos
- Centro de Trauma do Esporte, Instituto Nacional de Traumatologia e Ortopedia (INTO), Rio de Janeiro, Brazil
| | | | - João Antonio Matheus Guimarães
- Research Division, Instituto Nacional de Traumatologia e Ortopedia, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil
| | - João Alves Grangeiro-Neto
- Centro de Trauma do Esporte, Instituto Nacional de Traumatologia e Ortopedia (INTO), Rio de Janeiro, Brazil
| | - Jamila Alessandra Perini
- Research Division, Instituto Nacional de Traumatologia e Ortopedia, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil. .,Laboratório de Pesquisa de Ciências Farmacêuticas, Centro Universitário Estadual da Zona Oeste (UEZO), Rio de Janeiro, Brazil. .,Programa de Pós-graduação em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil.
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115
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Cuzzullin MC, Curate F, Freire AR, Costa ST, Prado FB, Daruge Junior E, Cunha E, Rossi AC. Validation of anthropological measures of the human femur for sex estimation in Brazilians. AUST J FORENSIC SCI 2020. [DOI: 10.1080/00450618.2020.1729411] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Francisco Curate
- Research Centre for Anthropology and Health, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | | | | | | | | | - Eugénia Cunha
- Centre for Functional Ecology, Laboratory of Forensic Sciences, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, National Institute of Legal Medicine and Forensic Sciences, Lisbon, Portugal
| | - Ana Cláudia Rossi
- Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, Brazil
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de Lima-Junior JC, Virginio VWM, Moura FA, Bertolami A, Bertolami M, Coelho-Filho OR, Zanotti I, Nadruz W, de Faria EC, de Carvalho LSF, Sposito AC. Excess weight mediates changes in HDL pool that reduce cholesterol efflux capacity and increase antioxidant activity. Nutr Metab Cardiovasc Dis 2020; 30:254-264. [PMID: 31753789 DOI: 10.1016/j.numecd.2019.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/02/2019] [Accepted: 09/16/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND AIM Obesity-related decline in high-density lipoprotein (HDL) functions such as cholesterol efflux capacity (CEC) has supported the notion that this lipoprotein dysfunction may contribute for atherogenesis among obese patients. We investigated if potentially other HDL protective actions may be affected with weight gain and these changes may occur even before the obesity range in a cross-sectional analysis. METHODS AND RESULTS Lipid profile, body mass index (BMI), biochemical measurements, and carotid intima-media thickness (cIMT) were obtained in this cross-sectional study with 899 asymptomatic individuals. Lipoproteins were separated by ultracentrifugation and HDL physical-chemical characterization, CEC, antioxidant activity, anti-inflammatory activity, HDL-mediated platelet aggregation inhibition were measured in a randomly-selected subgroup (n = 101). Individuals with increased HDL-C had an attenuated increase in cIMT with elevation of BMI (interaction effect β = -0.054; CI 95% -0.0815, -0.0301). CEC, HDL-C, HDL size and HDL-antioxidant activity were negatively associated with cIMT. BMI was inversely correlated with HDL-mediated inhibition of platelet aggregation (Spearman's rho -0.157, p < 0.03) and CEC (Spearman's rho -0.32, p < 0.001), but surprisingly it was directly correlated with the antioxidant activity (Spearman's rho 0.194, p = 0.052). Thus, even in non-obese, non-diabetic individuals, increased BMI is associated with a wide change in protective functions of HDL, reducing CEC and increasing antioxidant activity. In these subjects, decreased HDL concentration, size or function are related to increased atherosclerotic burden. CONCLUSION Our findings demonstrate that in non-obese, non-diabetic individuals, the increasing values of BMI are associated with impaired protective functions of HDL and concomitant increase in atherosclerotic burden.
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Affiliation(s)
- Jose Carlos de Lima-Junior
- Laboratory of Atherosclerosis and Vascular Biology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Vitor W M Virginio
- Laboratory of Atherosclerosis and Vascular Biology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Filipe A Moura
- Laboratory of Atherosclerosis and Vascular Biology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil; Department of Cardiology, Brigham and Women's Hospital, Boston, New England, United States
| | - Adriana Bertolami
- Department of Dyslipidemia, Dante Pazzanese Cardiological Institute, São Paulo, Brazil
| | - Marcelo Bertolami
- Department of Dyslipidemia, Dante Pazzanese Cardiological Institute, São Paulo, Brazil
| | - Otavio R Coelho-Filho
- Department of Internal Medicine, Cardiology Division, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Ilaria Zanotti
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Wilson Nadruz
- Department of Internal Medicine, Cardiology Division, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Eliana Cotta de Faria
- Lipids Laboratory, Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, Sao Paulo, Brazil
| | - Luiz Sergio F de Carvalho
- Laboratory of Atherosclerosis and Vascular Biology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil; Department of Internal Medicine, Cardiology Division, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Andrei C Sposito
- Laboratory of Atherosclerosis and Vascular Biology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil; Department of Internal Medicine, Cardiology Division, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil.
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117
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da Costa E Silva Carvalho S, Cury NM, Brotto DB, de Araujo LF, Rosa RCA, Texeira LA, Plaça JR, Marques AA, Peronni KC, Ruy PDC, Molfetta GA, Moriguti JC, Carraro DM, Palmero EI, Ashton-Prolla P, de Faria Ferraz VE, Silva WA. Germline variants in DNA repair genes associated with hereditary breast and ovarian cancer syndrome: analysis of a 21 gene panel in the Brazilian population. BMC Med Genomics 2020; 13:21. [PMID: 32039725 PMCID: PMC7011249 DOI: 10.1186/s12920-019-0652-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The Hereditary Breast and Ovarian Cancer Syndrome (HBOC) occurs in families with a history of breast/ovarian cancer, presenting an autosomal dominant inheritance pattern. BRCA1 and BRCA2 are high penetrance genes associated with an increased risk of up to 20-fold for breast and ovarian cancer. However, only 20-30% of HBOC cases present pathogenic variants in those genes, and other DNA repair genes have emerged as increasing the risk for HBOC. In Brazil, variants in ATM, ATR, CHEK2, MLH1, MSH2, MSH6, POLQ, PTEN, and TP53 genes have been reported in up to 7.35% of the studied cases. Here we screened and characterized variants in 21 DNA repair genes in HBOC patients. METHODS We systematically analyzed 708 amplicons encompassing the coding and flanking regions of 21 genes related to DNA repair pathways (ABRAXAS1, ATM, ATR, BARD1, BRCA1, BRCA2, BRIP1, CDH1, CHEK2, MLH1, MRE11, MSH2, MSH6, NBN, PALB2, PMS2, PTEN, RAD50, RAD51, TP53 and UIMC1). A total of 95 individuals with HBOC syndrome clinical suspicion in Southeast Brazil were sequenced, and 25 samples were evaluated for insertions/deletions in BRCA1/BRCA2 genes. Identified variants were assessed in terms of population allele frequency and their functional effects were predicted through in silico algorithms. RESULTS We identified 80 variants in 19 genes. About 23.4% of the patients presented pathogenic variants in BRCA1, BRCA2 and TP53, a frequency higher than that identified among previous studies in Brazil. We identified a novel variant in ATR, which was predicted as pathogenic by in silico tools. The association analysis revealed 13 missense variants in ABRAXAS1, BARD1, BRCA2, CHEK2, CDH1, MLH1, PALB2, and PMS2 genes, as significantly associated with increased risk to HBOC, and the patients carrying those variants did not present large insertions or deletions in BRCA1/BRCA2 genes. CONCLUSIONS This study embodies the third report of a multi-gene analysis in the Brazilian population, and addresses the first report of many germline variants associated with HBOC in Brazil. Although further functional analyses are necessary to better characterize the contribution of those variants to the phenotype, these findings would improve the risk estimation and clinical follow-up of patients with HBOC clinical suspicion.
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Affiliation(s)
- Simone da Costa E Silva Carvalho
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Nathalia Moreno Cury
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Danielle Barbosa Brotto
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luiza Ferreira de Araujo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Reginaldo Cruz Alves Rosa
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lorena Alves Texeira
- Division of Internal Medicine and Geriatrics, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Jessica Rodrigues Plaça
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Adriana Aparecida Marques
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Kamila Chagas Peronni
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Patricia de Cássia Ruy
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Greice Andreotti Molfetta
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Julio Cesar Moriguti
- Division of Internal Medicine and Geriatrics, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Dirce Maria Carraro
- International Research, Center/CIPE, AC Camargo Cancer Center, Sao Paulo, SP, Brazil
| | - Edenir Inêz Palmero
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, Brazil
| | - Patricia Ashton-Prolla
- Laboratório de Medicina Genômica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Victor Evangelista de Faria Ferraz
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil
- Department of Medical Genetics, University Hospital of the Ribeirão Preto Medical School, Ribeirão Preto, Brazil
| | - Wilson Araujo Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
- Center for Medical Genomics at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil.
- Regional Blood Center at University Hospital of the Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, SP, Brazil.
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Genetic variation in Interleukin-32 influence the immune response against New World Leishmania species and susceptibility to American Tegumentary Leishmaniasis. PLoS Negl Trop Dis 2020; 14:e0008029. [PMID: 32023240 PMCID: PMC7028298 DOI: 10.1371/journal.pntd.0008029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/18/2020] [Accepted: 01/03/2020] [Indexed: 02/07/2023] Open
Abstract
Interleukin-32 is a novel inflammatory mediator that has been described to be important in the immunopathogenesis and control of infections caused by Leishmania parasites. By performing experiments with primary human cells in vitro, we demonstrate that the expression of IL-32 isoforms is dependent on the time exposed to L. amazonensis and L. braziliensis antigens. Moreover, for the first time we show the functional consequences of three different genetic variations in the IL32 (rs4786370, rs4349147, rs1555001) modulating IL-32γ expression, influencing innate and adaptive cytokine production after Leishmania exposure. Using a Brazilian cohort of 107 American Tegumentary Leishmaniasis patients and a control cohort of 245 healthy individuals, the IL32 rs4786370 genetic variant was associated with protection against ATL, whereas the IL32 rs4349147 was associated with susceptibility to the development of localized cutaneous and mucosal leishmaniasis. These novel insights may help improve therapeutic strategies and lead to benefits for patients suffering from Leishmania infections. In this study, we described how IL-32 isoforms are crucial to host defense against new world Leishmania species infections. Furthermore, by accessing the genotype frequency of genetic variations in IL32 in a cohort of Brazilian patients with American Tegumentary Leishmaniasis (ATL) and controls, we have obtained indications that IL-32 is associated with disease susceptibility and the development of different clinical manifestations. Thus, this study provides us an extra evidence that the isoforms of IL-32 shape the immune response favoring the development of different cytokines produced by peripheral blood mononuclear cells that might contribute to skin/mucosal inflammation and host defense.
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Bueno CT, Pereira AC, Santos HC, Gómez LMG, Horimoto ARVR, Krieger EM, Krieger JE, Santos PCJL. Association of the genetic ancestry with resistant hypertension in the ReHOT (Resistant Hypertension Optimal Treatment) randomized study. Sci Rep 2020; 10:1476. [PMID: 32001805 PMCID: PMC6992613 DOI: 10.1038/s41598-020-58540-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/15/2020] [Indexed: 11/09/2022] Open
Abstract
Resistant hypertension (RH) is defined as uncontrolled blood pressure despite treatment with three or more antihypertensive medications, including, if tolerated, a diuretic in adequate doses. It has been widely known that race is associated with blood pressure control. However, intense debate persists as to whether this is solely explained by unadjusted socioeconomical variables or genetic variation. In this scenario, the main aim was to evaluate the association between genetic ancestry and resistant hypertension in a large sample from a multicenter trial of stage II hypertension, the ReHOT study. Samples from 1,358 patients were analyzed, of which 167 were defined as resistant hypertensive. Genetic ancestry was defined using a panel of 192 polymorphic markers. The genetic ancestry was similar in resistant (52.0% European, 36.7% African and 11.3% Amerindian) and nonresistant hypertensive patients (54.0% European, 34.4% African and 11.6% Amerindian) (p > 0.05). However, we observed a statistically suggestive association of African ancestry with resistant hypertension in brown patient group. In conclusion, increased African genetic ancestry was not associated with RH in Brazilian patients from a prospective randomized hypertension clinical trial.
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Affiliation(s)
- Carolina Tosin Bueno
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Alexandre Costa Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Hadassa Campos Santos
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Luz Marina Gómez Gómez
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | | | - Eduardo Moacyr Krieger
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Jose Eduardo Krieger
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Paulo Caleb Junior Lima Santos
- Department of Pharmacology - Escola Paulista de Medicina, Universidade Federal de Sao Paulo EPM-Unifesp, São Paulo, Brazil.
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Pharmacogenomics implications of population diversity in Latin America: TPMT and NUDT15 polymorphisms and thiopurine dosing. Pharmacogenet Genomics 2020; 30:1-4. [DOI: 10.1097/fpc.0000000000000388] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Salum KCR, Castro MCS, Moreira VB, Nani ASF, Kohlrausch FB. Interleukin 1α and 1β gene variations are associated with tuberculosis in silica exposed subjects. Am J Ind Med 2020; 63:74-84. [PMID: 31692000 DOI: 10.1002/ajim.23066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Silicosis is a fibrotic lung disease resulting from the inhalation of crystalline silica and can be classified as simple or complicated according to the International Labour Organization criteria. Furthermore, individuals exposed to crystalline silica also have a higher risk for the development of tuberculosis (Tb). The contribution of inflammatory cytokines to the risk of silicosis and Tb in different populations has previously been reported. Since genetic background might be related to susceptibility to silicosis and Tb, the study of polymorphisms within IL-1α, IL-1β, and tumor necrosis factor protein-coding genes may contribute to elucidating the genetic basis of these diseases. METHODS Single nucleotide polymorphisms (SNPs) were genotyped by polymerase chain reaction using restriction fragment length polymorphism or by Taqman methodology, in a sample of 102 silica-exposed patients from Brazil. RESULTS No significant associations were observed between the SNPs studied and the severity of silicosis. However, significant associations were found between Tb and the C allele (odds ratio [OR] = 1.93, 95% confidence interval [CI], 1.01-3.73) and the CC genotype (OR = 2.34, 95% CI, 1.04-5.31) of IL1A -899C>T. The IL1B +3954C>T polymorphism also showed an association with Tb (T allele dominant model OR = 2.38, 95% CI, 1.04-5.41). CONCLUSION These preliminary results demonstrate that the IL1A and IL1B gene variations may contribute to some extent to susceptibility to Tb, but not silicosis. However, additional studies are still needed to confirm these results.
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Affiliation(s)
| | - Marcos Cesar Santos Castro
- Departamento de Medicina Clínica, Hospital Universitário Antônio PedroUniversidade Federal FluminenseNiterói Brazil
- Ambulatório de Pneumologia, Hospital Universitário Pedro ErnestoUniversidade do Estado do Rio de JaneiroRio de Janeiro Brazil
| | - Valéria Barbosa Moreira
- Departamento de Medicina Clínica, Hospital Universitário Antônio PedroUniversidade Federal FluminenseNiterói Brazil
| | - Angela Santos Ferreira Nani
- Departamento de Medicina Clínica, Hospital Universitário Antônio PedroUniversidade Federal FluminenseNiterói Brazil
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Examining the role of regional culture and geographical distances on the representation of unfamiliar foods in a continental-size country. Food Qual Prefer 2020. [DOI: 10.1016/j.foodqual.2019.103779] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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123
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Jannuzzi J, Ribeiro J, Alho C, de Oliveira Lázaro e Arão G, Cicarelli R, Simões Dutra Corrêa H, Ferreira S, Fridman C, Gomes V, Loiola S, da Mota MF, Ribeiro-dos-Santos Â, de Souza CA, de Sousa Azulay RS, Carvalho EF, Gusmão L. Male lineages in Brazilian populations and performance of haplogroup prediction tools. Forensic Sci Int Genet 2020; 44:102163. [DOI: 10.1016/j.fsigen.2019.102163] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/25/2019] [Accepted: 09/19/2019] [Indexed: 11/26/2022]
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Granero Farias M, Andrade Dos Santos C, de Mello Vicente B, Habigzang M, de Oliveira da Silva P, Emerim Lemos N, Dieter C, Paz A, Esteves Daudt L. The effects of gene polymorphisms on susceptibility to acute GVHD and survival of allogeneic HSCT recipients: IL-10 gene polymorphisms as a more accessible target to predict prognosis. Hum Immunol 2019; 81:18-25. [PMID: 31889553 DOI: 10.1016/j.humimm.2019.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/28/2019] [Accepted: 12/05/2019] [Indexed: 12/30/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a therapeutic modality commonly used to treat hematological and immunological disorders. Among the main complications of allo-HSCT is the acute graft-versus-host disease (a-GVHD), a condition which accounts for a high incidence of mortality. Several genes encoding inflammatory mediators may present polymorphisms, which have been implicated in the risk of developing a-GVHD. In our study, we investigated the association between genotypes of cytokine-encoding genes and the incidence and severity of a-GVHD and survival of HSCT recipients. No statistically significant association was found between IL and 6-174 G/C, INF-γ + 874 T/A, TNF-α -238 A/G, -308 A/G and IL-10-819C/T, -592 A/C polymorphisms and the presence or severity of a-GVHD. A higher risk of a-GVHD was associated with the IL-10-1082 GG genotype compared to the AA + AG genotypes of recipients and donors. The IL-10-1082 genotype can be used as a prognostic determinant to predict which HSCT recipient will be more responsive to the transplant. Thus, cytokine gene assays may be useful in the individualization of prophylactic regimens and for an appropriate selection of immunosuppressants based on the HSCT recipient's responsiveness.
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Affiliation(s)
- Mariela Granero Farias
- Graduate Program in Child and Adolescent Health, Federal University of Rio Grande, do Sul/UFRGS, Brazil; Hospital de Clínicas de Porto Alegre/HCPA, Brazil.
| | | | | | | | | | | | | | | | - Liane Esteves Daudt
- Graduate Program in Child and Adolescent Health, Federal University of Rio Grande, do Sul/UFRGS, Brazil; Hospital de Clínicas de Porto Alegre/HCPA, Brazil; Federal University of Rio Grande do Sul/UFRGS, Brazil
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Lopes TRR, Gonçales JP, Silva Júnior JVJ, Lorena VMBD, Toscano ALCC, Akamatsu SM, Salles AC, Tozetto-Mendoza TR, Morais VMSD, Coêlho MRCD. Association of IL-6, IL-10 and CXCL10 serum concentrations with visceral Kaposi's sarcoma in people living with HIV/AIDS. Hum Immunol 2019; 81:26-31. [PMID: 31866063 DOI: 10.1016/j.humimm.2019.11.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/31/2019] [Accepted: 11/20/2019] [Indexed: 01/23/2023]
Abstract
Human gammaherpesvirus 8 (HHV-8) is the etiologic agent of Kaposi's sarcoma (KS), one of the most common cancers in people living with HIV/AIDS. It is believe that the course of both HIV and HHV-8 infection is associated with the imbalance of anti- and/or pro-inflammatory cytokines. Here, we evaluated the IL-6, TNF-α, IL-10, CCL2 and CXCL10 serum concentrations in HIV- and HIV/HHV-8 (without KS) individuals, and in patients with cutaneous or visceral AIDS-KS. Serum concentrations of IL-6, IL-10 and CXCL10 were significantly higher in the AIDS-KS group compared to HIV and HIV/HHV-8 individuals. Similarly, the concentrations of theses cytokines were higher in patients with visceral than in those with cutaneous AIDS-KS. The TNF-α concentration was significantly higher in the HIV group compared to HIV/HHV-8 (with and without KS) individuals, and CCL2 levels did not present significant difference among the groups. The HIV viral load was undetectable in all patients from the HIV and HIV/HHV-8 groups. On the other hand, in the AIDS-KS group, most patients had detectable HIV viral load. In this context, we believe that the cytokine levels in AIDS-KS may be result of a complex interaction between HIV, HHV-8 and immunity.
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Affiliation(s)
- Thaísa Regina Rocha Lopes
- Virology Sector, Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Juliana Prado Gonçales
- Virology Sector, Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - José Valter Joaquim Silva Júnior
- Virology Sector, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil; Departament of Microbiology and Parasitology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | | | | | | | | | - Tania Regina Tozetto-Mendoza
- LIM 52, Laboratory of Virology, Institute of Tropical Medicine of Sao Paulo, University of São Paulo, São Paulo, Brazil
| | | | - Maria Rosângela Cunha Duarte Coêlho
- Virology Sector, Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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Muniz AA, da Silva AR, Ferraz IA, Martins ML, Godin MM, Schmidt LC, Dusse LMSA, da Silva Malta MCF. The screening of rare blood donors in a highly admixed population: A new approach for Holley and Diego genotyping and impact of genomic and self-reported ancestry. Transfus Med 2019; 30:148-156. [PMID: 31820508 DOI: 10.1111/tme.12653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/21/2019] [Accepted: 11/09/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The present study aimed to develop strategies for genotyping DO*HY (Dombrock system) and DI*A/DI*B (Diego system) alleles and to evaluate the impact of genomic and self-declared ancestry on rare donor screening in admixed populations. BACKGROUND The antigens Hy and Dib demonstrate clinical importance. The lack of antisera for the serological evaluation of these antigens makes it necessary to develop molecular methods. In addition, considering that some rare red blood cell phenotypes present differences in frequency between ethnic groups, it is important to assess the applicability of self-declared ancestry in the search for rare donors in admixed populations. METHODS DO*HY and DI*A/DI*B genotyping based on real-time polymerase chain reaction (PCR) was standardised. A total of 457 blood donors clustered by self-defined skin colour/race categories were genotyped. Furthermore, individual genomic ancestry was used in the analyses. RESULTS The assays developed are reproducible and provide satisfactory results even at low concentrations of DNA, which make them useful in situations where the DNA is scarce, such as dried blood spots on filter paper, or when screening for pooled samples. No significant difference was observed in the frequencies of the DI*A, DI*B and DO*HY, comparing the self-declared White (branco) donors with those who are Black (preto) and Brown (pardo). CONCLUSION Real-time PCR, especially using pooled samples, is a promising strategy to screen rare blood donors. Although both self-reported race/colour and some blood group phenotypes are associated with ancestry, the results point to a greater complexity in the application of self-declared race/colour in the screening of rare donors in admixed populations.
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Affiliation(s)
- Amanda A Muniz
- Fundação Hemominas, Belo Horizonte, Brazil.,Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Adão R da Silva
- Fundação Hemominas, Belo Horizonte, Brazil.,Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Ellwanger JH, Kulmann-Leal B, Wolf JM, Michita RT, Simon D, Lunge VR, Chies JAB. Role of the genetic variant CCR5Δ32 in HBV infection and HBV/HIV co-infection. Virus Res 2019; 277:197838. [PMID: 31837381 DOI: 10.1016/j.virusres.2019.197838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/18/2019] [Accepted: 12/10/2019] [Indexed: 12/16/2022]
Abstract
CCR5 is a chemokine receptor that mediates the action of inflammatory cells, besides acting as an HIV co-receptor. CCR5Δ32 states for a genetic variant containing a 32 base pair deletion in the coding region of the CCR5 gene. In homozygosis, CCR5Δ32 results in the lack of CCR5 expression on the cell surface, which was associated with protection against HIV infection. Heterozygous individuals for CCR5Δ32 have a reduced CCR5 expression. Recent evidence demonstrates that CCR5 and CCR5Δ32 are involved in the pathogenesis of other viral infections besides HIV infection. Nevertheless, the role of CCR5 and CCR5Δ32 in HBV infection is not clear and conflicting results have been reported. Thus, the objective of this study was to investigate the role of CCR5Δ32 in HBV mono-infection and HBV/HIV co-infection in a population from southern Brazil. A total of 1113 individuals were evaluated, divided in controls (n = 334), HBV+ (n = 335), HBV+/HIV+ (n = 144), and including an HIV+ group to complement the analyses (n = 300, obtained from a previous study of our research team). The CCR5Δ32 allele frequencies found were 7.5 %, 9.0 %, and 3.1 %, respectively for controls, HBV+, and HBV+/HIV+ patients. The individuals were classified in CCR5Δ32 allele carriers and CCR5Δ32 allele non-carriers and the groups were compared using binary logistic regression adjusted for covariates. No significant effect of the CCR5Δ32 variant was observed on the susceptibility or protection against HBV mono-infection in individuals from southern Brazil. A potential protective effect of CCR5Δ32 on HBV/HIV co-infection was observed. However, it can be due to the effect of CCR5Δ32 in the protection against HIV infection or external factors not covered in the study. Finally, this study contributes to the understanding of the role of CCR5 in HBV infection, suggesting no effect of CCR5Δ32 on susceptibility to HBV mono-infection.
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Affiliation(s)
- Joel Henrique Ellwanger
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - PPGBM, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Bruna Kulmann-Leal
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - PPGBM, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Jonas Michel Wolf
- Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada à Saúde, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil
| | - Rafael Tomoya Michita
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - PPGBM, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Daniel Simon
- Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada à Saúde, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil
| | - Vagner Ricardo Lunge
- Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada à Saúde, Universidade Luterana do Brasil - ULBRA, Canoas, Brazil
| | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - PPGBM, Departamento de Genética, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil.
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Souza AMD, Resende SS, Sousa TND, Brito CFAD. A systematic scoping review of the genetic ancestry of the Brazilian population. Genet Mol Biol 2019; 42:495-508. [PMID: 31188926 PMCID: PMC6905439 DOI: 10.1590/1678-4685-gmb-2018-0076] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 01/16/2019] [Indexed: 12/27/2022] Open
Abstract
The genetic background of the Brazilian population is mainly characterized by
three parental populations: European, African, and Native American. The aim of
this study was to overview the genetic ancestry estimates for different
Brazilian geographic regions and analyze factors involved in these estimates. In
this systematic scoping review were included 51 studies, comprehending 81
populations of 19 states from five regions of Brazil. To reduce the potential of
bias from studies with different sampling methods, we calculated the mean
genetic ancestry weighted by the number of individuals. The weighted mean
proportions of European, African, and Native American ancestries were 68.1%,
19.6%, and 11.6%, respectively. At the regional level, the highest European
contribution occurred in the South, while the highest African and Native
American contributions occurred in the Northeastern and Northern regions,
respectively. Among states in the Northeast region, Bahia and Ceará showed
significant differences, suggesting distinct demographic histories. This review
contributes for a broader understanding of the Brazilian ancestry and indicates
that the ancestry estimates are influenced by the type of molecular marker and
the sampling method.
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Affiliation(s)
- Aracele Maria de Souza
- Research Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil
| | - Sarah Stela Resende
- Research Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil
| | - Taís Nóbrega de Sousa
- Research Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil
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de Oliveira Coelho Dutra Leal M, Daruge E, Francesquini L, Costa ST, Delwing F, Espejo MAJ, Jodas CRP, Line SRP. Estimation of sex in Brazilian samples with cross-validation in populations of different regions. FORENSIC SCIENCE INTERNATIONAL: REPORTS 2019. [DOI: 10.1016/j.fsir.2019.100030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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The vaginal microbial communities of healthy expectant Brazilian mothers and its correlation with the newborn's gut colonization. World J Microbiol Biotechnol 2019; 35:159. [PMID: 31602538 PMCID: PMC6787113 DOI: 10.1007/s11274-019-2737-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/30/2019] [Indexed: 01/22/2023]
Abstract
The female lower genital tract harbors a complex microbial community essential for homeostasis and health. During pregnancy, the female body undergoes unique hormonal changes that contribute to weight gain as well as modulations in immune function that can affect microbiota composition. Several studies have described the vaginal microbiota of pregnant women from the USA, Europe and Mexico. Here we expand our knowledge about the vaginal microbial communities during the third trimester to healthy expectant Brazilian mothers. Vaginal samples were collected from patients delivering at the Hospital de Clínicas de Porto Alegre, Brazil. Microbial DNA was isolated from samples and the V4 region of the 16S rRNA gene was amplified and sequenced using the PGM Ion Torrent. Brazilian pregnant women presented three distinct types of microbial community at the time of labor. Two microbial communities, Cluster 1 and Cluster 3, presented an overall dominance of Lactobacillus while Cluster 2 tended to present higher diversity and richness, with the presence of Pseudomonas, Prevotella and other vaginosis related bacteria. About half of the Brazilian mothers sampled here had dominance of L. iners. The proportion of mothers without dominance of any Lactobacillus was higher in Brazil (22%) compared to UK (2.4%) and USA, where this community type was not detected. The vaginal microbiota showed significant correlation with the composition of the babies' gut microbiota (p-value = 0.002 with a R2 of 15.8%). Mothers presenting different vaginal microbiota shared different microorganisms with their newborns, which would reflect on initial colonizers of the developing newborns' gut.
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Lancia M, Machado RA, Dionísio TJ, Garib DG, Santos CFD, Coletta RD, Neves LTD. Association between MSX1 rs12532 polymorphism with nonsyndromic unilateral complete cleft lip and palate and tooth agenesis. Arch Oral Biol 2019; 109:104556. [PMID: 31568994 DOI: 10.1016/j.archoralbio.2019.104556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/15/2019] [Accepted: 09/15/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES To investigate the association of MSX1 rs12532 polymorphism with the risk of nonsyndromic unilateral complete cleft lip and palate (NSCLP) and tooth agenesis. MATERIALS AND METHODS The study is comprised of 384 individuals divided into 4 groups: group 1, patients with unilateral complete NSCLP and premolar agenesis (n = 57); group 2, patients with unilateral NSCLP without tooth agenesis (n = 117); group 3, patients with premolar agenesis without oral cleft (n = 53) and group 4 (n = 157), a control group with individuals without tooth agenesis and oral cleft. Genotyping of rs12532 was carried out with Taqman chemistry, and associations were investigated using logistic regression analyses. RESULTS Overall rs12532 allele and genotype distributions revealed no significant differences between the groups of NSCLP or tooth agenesis. CONCLUSION Although our results are consistent with a lack of association of MSX1 rs12532 and the risk of unilateral NSCLP and tooth agenesis, further studies with additional SNPs and a more diverse ethnic cohort are warranted.
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Affiliation(s)
- Melissa Lancia
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Renato Assis Machado
- Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil
| | - Thiago José Dionísio
- Laboratory Specialist, Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Daniela Gamba Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Post-Graduation Program in Rehabilitation Sciences, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil
| | - Carlos Ferreira Dos Santos
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Ricardo D Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Lucimara Teixeira das Neves
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Post-Graduation Program in Rehabilitation Sciences, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil.
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132
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Vasconcelos VCA, Lourenço GJ, Brito ABC, Vasconcelos VL, Maldaun MVC, Tedeschi H, Marie SKN, Shinjo SMO, Lima CSP. Associations ofVEGFAandKDRsingle-nucleotide polymorphisms and increased risk and aggressiveness of high-grade gliomas. Tumour Biol 2019; 41:1010428319872092. [DOI: 10.1177/1010428319872092] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Angiogenesis, induced by the vascular endothelial growth factor A through its ligation to the vascular endothelial growth receptor 2, has been described as a crucial point in high-grade glioma development. The aim of this study was to evaluate the influence of VEGFA–2578C/A, −2489C/T, −1154G/A, −634G/C, and −460C/T, and KDR–604T/C, −271G/A, +1192G/A, and +1719A/T single-nucleotide polymorphisms on risk and clinicopathological aspects of high-grade glioma. This case–control study enrolled 205 high-grade glioma patients and 205 controls. Individuals with VEGFA–2578 CC or CA, VEGFA–1154 GG, VEGFA–634 GC or CC, and VEGFA–460 CT or TT genotypes were under 2.56, 1.53, 1.54, and 1.84 increased risks of high-grade glioma, compared to others, respectively. And 1.61, 2.66, 2.52, 2.53, and 2.02 increased risks of high-grade glioma were seen in individuals with VEGFA–2578 CC plus VEGFA–1154 GG, VEGFA–2578 CC or CA plus VEGFA–634 GC or CC, VEGFA–2578 CC or CA plus VEGFA–460 CT or TT, VEGFA–1154 GG or GA plus VEGFA–634 GC or CC, and VEGFA 634 GC or CC plus VEGFA–460 CT or TT combined genotypes, respectively, when compared to others. The “CAGT” haplotype of KDR single-nucleotide polymorphisms was more common in patients with grade IV than in those with grade III tumors, and individuals carrying this haplotype were at 1.76 increased risk of developing grade IV tumors than others. We present, for the first time, preliminary evidence that VEGFA–2578C/A and VEGFA–1154G/A single-nucleotide polymorphisms increases high-grade glioma risk, and “CAGT” haplotype of the KDR gene alters high-grade glioma aggressiveness and risk of grade IV tumors in Brazil.
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Affiliation(s)
| | - Gustavo Jacob Lourenço
- Clinical Oncology Service, Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Angelo Borsarelli Carvalho Brito
- Clinical Oncology Service, Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Victor Leal Vasconcelos
- Department of Neurosurgery, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
| | | | - Helder Tedeschi
- Department of Neurosurgery, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
| | | | | | - Carmen Silvia Passos Lima
- Clinical Oncology Service, Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
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133
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Guilherme JPLF, Egorova ES, Semenova EA, Kostryukova ES, Kulemin NA, Borisov OV, Khabibova SA, Larin AK, Ospanova EA, Pavlenko AV, Lyubaeva EV, Popov DV, Lysenko EA, Vepkhvadze TF, Lednev EM, Govorun VM, Generozov EV, Ahmetov II, Lancha Junior AH. The A-allele of the FTO Gene rs9939609 Polymorphism Is Associated With Decreased Proportion of Slow Oxidative Muscle Fibers and Over-represented in Heavier Athletes. J Strength Cond Res 2019; 33:691-700. [PMID: 30694969 DOI: 10.1519/jsc.0000000000003032] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Guilherme, JPLF, Egorova, ES, Semenova, EA, Kostryukova, ES, Kulemin, NA, Borisov, OV, Khabibova, SA, Larin, AK, Ospanova, EA, Pavlenko, AV, Lyubaeva, EV, Popov, DV, Lysenko, EA, Vepkhvadze, TF, Lednev, EM, Govorun, VM, Generozov, EV, Ahmetov, II, and Lancha Junior, AH. The A-allele of the FTO gene rs9939609 polymorphism is associated with decreased proportion of slow oxidative muscle fibers and over-represented in heavier athletes. J Strength Cond Res 33(3): 691-700, 2019-The purpose of this study was to explore the frequency of the FTO T > A (rs9939609) polymorphism in elite athletes from 2 cohorts (Brazil and Russia), as well as to find a relationship between FTO genotypes and muscle fiber composition. A total of 677 athletes and 652 nonathletes were evaluated in the Brazilian cohort, whereas a total of 920 athletes and 754 nonathletes were evaluated in the Russian cohort. It was found a trend for a lower frequency of A/A genotype in long-distance athletes compared with nonathletes (odds ratio [OR]: 0.65; p = 0.054). By contrast, it was found an increased frequency of the A-allele in Russian power athletes. The presence of the T/A + A/A genotypes rather than T/T increased the OR of being a Russian power athlete compared with matched nonathletes (OR: 1.45; p = 0.002). Different from that observed in combat sports athletes of lighter weight categories, the A-allele was also over-represented in combat sports athletes of heavier weight categories. The presence of the T/A + A/A genotypes rather than T/T increased the OR of being a combat sports athlete of heavier weight categories compared with nonathletes (OR: 1.79; p = 0.018). Regarding the muscle fibers, we found that carriers of the A/A genotype had less slow-twitch muscle fibers than T-allele carriers (p = 0.029). In conclusion, the A/A genotype of the FTO T > A polymorphism is under-represented in athletes more reliant on a lean phenotype and associated with decreased proportion of slow-twitch muscle fibers, while is over-represented in strength and heavier athletes.
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Affiliation(s)
- João Paulo L F Guilherme
- Laboratory of Applied Nutrition and Metabolism, Department of Biodynamics of the Human Body Movement, School of Physical Education and Sport, University of Sao Paulo, São Paulo, Brazil
| | - Emiliya S Egorova
- Laboratory of Molecular Genetics, Kazan State Medical University, Kazan, Russia
| | - Ekaterina A Semenova
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia.,Department of Biochemistry, Kazan Federal University, Kazan, Russia
| | - Elena S Kostryukova
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Nickolay A Kulemin
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Oleg V Borisov
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia.,Moscow Institute of Physics and Technology (State University), Moscow, Russia
| | - Sofya A Khabibova
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Andrey K Larin
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Elena A Ospanova
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Alexander V Pavlenko
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Ekaterina V Lyubaeva
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Daniil V Popov
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Evgeny A Lysenko
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Tatiana F Vepkhvadze
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Egor M Lednev
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Vadim M Govorun
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Edward V Generozov
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Ildus I Ahmetov
- Laboratory of Molecular Genetics, Kazan State Medical University, Kazan, Russia.,Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia.,Sports Genetics Laboratory, St Petersburg Research Institute of Physical Culture, St Petersburg, Russia.,Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Antonio H Lancha Junior
- Laboratory of Applied Nutrition and Metabolism, Department of Biodynamics of the Human Body Movement, School of Physical Education and Sport, University of Sao Paulo, São Paulo, Brazil
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134
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Association of oxytocin levels and oxytocin receptor gene polymorphism (rs2254298) with cardiovascular risk factors in Brazilian elderly from Primary Health Care. Arch Gerontol Geriatr 2019; 84:103903. [PMID: 31326852 DOI: 10.1016/j.archger.2019.103903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Morbidity and mortality from cardiovascular disease is a typical phenomenon in the elderly, and are related to unfavorable genetic, hormonal and environmental (lifestyle) interactions. In this context, oxytocin (OT) seems plays a key role in the development of CVD by performing important actions in metabolism energy and hemodynamic variables. OBJECTIVE To verify if there is an association between (OT) levels and the oxytocin receptor gene (OXTR) polymorphism (rs2254298) with cardiovascular risk factors (CRF) in the elderly. METHODS This was a cross-sectional study in community-dwelling elderly attending primary health care. The genotyping was done using the polymerase chain reaction technique. The CRF factors investigated included hypertension, diabetes mellitus, dyslipidemia, sedentary lifestyle, and obesity. Levels of triglycerides (TGC) postprandial and glucose were measured in capillary blood. OT and cortisol levels were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS The sample comprised 177 elderly individuals. OT levels showed a significant negative correlation with postprandial triglycerides (p = 0.030) and BMI (p = 0.019). OT levels were also associated with leanness (p = 0.005). On Poisson regression analysis, OT remained a predictor for leanness (p = 0.010). No significant associations were observed between the OXTR polymorphism and CRF. CONCLUSION The results suggest that Postprandial TGC levels are increased, while OT levels are decreased, and this hormone was significantly elevated in lean elderly. Future studies are needed to confirm these findings, and the role of OT in metabolic parameters.
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135
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Avila E, Graebin P, Chemale G, Freitas J, Kahmann A, Alho CS. Full mtDNA genome sequencing of Brazilian admixed populations: A forensic-focused evaluation of a MPS application as an alternative to Sanger sequencing methods. Forensic Sci Int Genet 2019; 42:154-164. [PMID: 31325893 DOI: 10.1016/j.fsigen.2019.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/13/2022]
Abstract
The use of Massive Parallel Sequencing (MPS) techniques have been proposed by the forensic community as an alternative to Sanger sequencing methods in routine forensic casework analysis regarding mitochondrial DNA (mtDNA). Interesting features of MPS include high throughput, ability to simultaneously genotype a significant number of samples by barcoding techniques, processing automation, reduced time and costs, among others. Advantages include the capability of generating full mtDNA genome sequences versus usual techniques, usually limited to hypervariable or control regions exclusively. In this work, 96 reference single-source samples from three different Brazilian cities were subjected to full mtDNA genome sequencing by MPS techniques using an early-access version of Precision ID mtDNA Whole Genome Panel on an Ion Torrent PGM platform (Thermo Fisher Scientific, Waltham, MA, USA). Complete, high-quality sequences were obtained and sequencing performance was evaluated via four different metrics. As a subset of evaluated samples have been previously submitted for Sanger sequencing of the control region, a comparative analysis of both methods' results was conducted in order to compare technique adequacy within a forensic context. Even though this study is one of the first to report full mtDNA genome sequences for Brazilian admixed populations, the observed haplotypes exhibit a predominance of Native American and African maternal lineages in the studied sample set, reproducing results described in the literature for control regions only. Interpopulation analysis among Brazilian and 26 worldwide populations was also carried out. The results indicate that MPS-generated full mtDNA genome sequences may have great utility in forensic real casework applications, with a pronounced gain of genetic information and discrimination power provided by coding region evaluation and the enhanced capacity of heteroplasmies determination. Database construction and other relevant factors concerning implementation of such techniques in Brazilian forensic laboratories are also discussed.
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Affiliation(s)
- E Avila
- Setor Técnico-Científico, Superintendência Regional do Rio Grande do Sul, Polícia Federal, Porto Alegre, Brazil; Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia INCT Ciências Forenses, Porto Alegre, Brazil.
| | - P Graebin
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - G Chemale
- Setor Técnico-Científico, Superintendência Regional do Rio Grande do Sul, Polícia Federal, Porto Alegre, Brazil
| | - J Freitas
- Instituto Nacional de Criminalística, Polícia Federal, Brasília, DF, Brazil
| | - A Kahmann
- Instituto de Matemática, Estatística e Física, Universidade Federal de Rio Grande, Rio Grande, Brazil
| | - C S Alho
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia INCT Ciências Forenses, Porto Alegre, Brazil
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136
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A systematic literature review on the European, African and Amerindian genetic ancestry components on Brazilian health outcomes. Sci Rep 2019; 9:8874. [PMID: 31221977 PMCID: PMC6586659 DOI: 10.1038/s41598-019-45081-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/28/2019] [Indexed: 02/08/2023] Open
Abstract
The variables such as race, skin colour and ethnicity have become intensely discussed in medicine research, as a response to the rising debate over the importance of the ethnic-racial dimension in the scope of health-disease processes. The aim of this study was to identify the European (EUR), African (AFR) and Amerindian (AMR) ancestries on Brazilian health outcomes through a systematic literature review. This study was carried out by searching in three electronic databases, for studies published between 2005 and 2017. A total of 13 papers were eligible. The search identified the following health outcomes: visceral leishmaniosis, malaria, Alzheimer’s disease, neuromyelitis optica, multiple sclerosis, prostate cancer, non-syndromic cleft lip/palate, chronic heart failure, sickle cell disease, primary congenital glaucoma, preterm labour, preterm premature rupture of membranes, systemic lupus erythematosus and type 1 diabetes mellitus. Research paper assessments were guided by the STROBE instrument, and agreements between results were determined by comparing the points attributed by two authors. Increased EUR ancestry was identified from preterm labour (PTL), type 1 diabetes (T1D) and non-syndromic cleft lip with or without cleft palate (NSCL), as well as in patients presenting aggressive prostate cancer prognoses. On the other hand, the highest AFR ancestral component was verified from systemic lupus erythematosus (SLE) and primary congenital glaucoma (PCG) cases, presenting worse prognoses. AMR ancestry may be a protective factor in the development of Alzheimer’s disease (AD). The worst hemodynamic parameters in cases of heart failure (HF) were identified among individuals with greater AMR and AFR ancestry indices.
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137
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Martins RDS, Campos Junior M, Dos Santos Moreira A, Marques Zembrzuski V, da Fonseca ACP, Abreu GDM, Cabello PH, de Cabello GMK. Identification of a novel large deletion and other copy number variations in the CFTR gene in patients with Cystic Fibrosis from a multiethnic population. Mol Genet Genomic Med 2019; 7:e00645. [PMID: 31199594 PMCID: PMC6625342 DOI: 10.1002/mgg3.645] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/13/2019] [Accepted: 02/20/2019] [Indexed: 11/30/2022] Open
Abstract
Background Cystic fibrosis (CF) is caused by mutations in the cystic fibrosis transmembrane conductance regulator gene (CFTR). There are over 2000 different pathogenic and non‐pathogenic variants described in association with a broad clinical heterogeneity. The most common types of mutations in this gene are single nucleotide substitutions or small deletions and insertions. However, large rearrangements, such as large duplications or deletions, are also a possible cause of CF; these variations are rarely tested in routine screenings, and much of them remain unidentified in some populations, especially those with high ethnic heterogeneity. Methods The present study utilized the Multiplex Ligation‐dependent Probe Amplification (MLPA) technique for the detection of duplications and deletions in 165 CF patients from the Rio de Janeiro State (Brazil), which after extensive mutational screening, still exhibited one or two unidentified CF alleles. Results Five patients with alterations in MLPA signals were detected. After validation, we identified three copy number variations, one large duplication (CFTRdup2‐3) and two large deletions (CFTRdel25‐26 and CFTRdel25‐27‐CTTNBP2). Two detected deletions were not validated. They were false positives caused by a small deletion of 18 base pairs (232del18) and a point mutation (S168L) in the probe binding site. Conclusion Our results highlight the importance of screening for large rearrangements in CF cases with no or only one CFTR mutation defined.
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Affiliation(s)
- Raisa da Silva Martins
- Human Genetics Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Molecular and Cellular Biology Graduate Program (PPGBMC), Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
| | - Mario Campos Junior
- Human Genetics Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Aline Dos Santos Moreira
- Laboratory of Functional Genomics and Bioinformatics, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | | | | | - Pedro Hernan Cabello
- Human Genetics Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Genetics Laboratory, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil
| | - Giselda Maria Kalil de Cabello
- Human Genetics Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Molecular and Cellular Biology Graduate Program (PPGBMC), Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
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138
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Puñales M, Bastos MD, Ramos ARL, Pinto RB, Ott EA, Provenzi V, Geremia C, Soledade MA, Schonardie AP, da Silveira TR, Tschiedel B. Prevalence of celiac disease in a large cohort of young patients with type 1 diabetes. Pediatr Diabetes 2019; 20:414-420. [PMID: 30737863 DOI: 10.1111/pedi.12827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/01/2018] [Accepted: 01/27/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Serological screening for celiac disease (CD) allows the identification of individuals genetically predisposed, as type 1 diabetes mellitus (T1DM). However, the diagnosis is confirmed by intestinal biopsy. The aim was to determine the prevalence of immunoglobulin-A anti-tissue transglutaminase antibodies (IgA-tTG) and CD in a large cohort of young T1DM patients. METHODS Screening for CD was randomly conducted in 881 T1DM by IgA-tTG and total IgA. Individuals with positive antibodies were referred to endoscopy/duodenal biopsy. RESULTS The age of the cohort at the screening was 14.3 ± 5.9 years and at T1DM onset was 7.9 ± 4.4 years. The prevalence of positive serology was 7.7%. Median IgA-tTG levels were 117.7 U/mL (interquartile range [IQR] 35.7-131.5 U/mL). Of the 62 duodenal biopsy, CD was diagnosed in 79.0%, yielding an overall prevalence of 5.6%. The mean age of CD patients was 15.6 ± 6.5 years and, at T1DM onset was 6.3 years (4.0-9.9 years). The modified Marsh-Oberhuber histological classification was 22.5% (3a), 36.7% (3b), and 40.8% (3c). In the biopsy-proven patients, T1DM onset occurred at slightly younger ages (6.3 vs 9.7 years, P = 0.1947), gastrointestinal (GI) manifestations, predominantly abdominal pain and distension, were more prevalent (71.4% vs 38.5%, P = 0.027) and higher IgA-tTG titers (128.0 vs 26.3 U/mL, P = 0.0003) were found than in those with negative-biopsies. CONCLUSION Our results demonstrate the prevalence of 7.7% of IgA-tTG and 5.6% of CD in T1DM patients in South Brazil and, emphasize the importance of the screening in high-risk individuals. Furthermore, the presence of GI manifestations and higher IgA-tTG titers strongly suggest the diagnosis of CD.
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Affiliation(s)
- Marcia Puñales
- Institute for Children with Diabetes (ICD), Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil.,Pediatric Endocrinology Service, Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Marilia Dornelles Bastos
- Post-Graduation Program in Adolescent and Child Health, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Medical Course, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, Brazil
| | - Ana Regina L Ramos
- Pediatric Gastroenterology Service, Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Raquel Borges Pinto
- Pediatric Gastroenterology Service, Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Eduardo A Ott
- Endoscopy Service, Nossa Senhora da Conceição Hospital (HNSC), Conceição Hospital Group (GHC), Porto Alegre, RS, Brazil
| | - Valentina Provenzi
- Pathology Service, Nossa Senhora da Conceição Hospital (HNSC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - César Geremia
- Institute for Children with Diabetes (ICD), Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil.,Pediatric Endocrinology Service, Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Maria Antônia Soledade
- Institute for Children with Diabetes (ICD), Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Ana Paula Schonardie
- Institute for Children with Diabetes (ICD), Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
| | - Themis R da Silveira
- Post-Graduation Program in Adolescent and Child Health, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Santo Antônio Child Hospital, Santa Casa de Misericórdia, Porto Alegre, RS, Brazil
| | - Balduino Tschiedel
- Institute for Children with Diabetes (ICD), Conceição Children Hospital (HCC), Conceição Hospital Group (GHC), Ministry of Health, Porto Alegre, RS, Brazil
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139
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Melanoma signature in Brazil: epidemiology, incidence, mortality, and trend lessons from a continental mixed population country in the past 15 years. Melanoma Res 2019; 28:629-636. [PMID: 30204684 DOI: 10.1097/cmr.0000000000000511] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The current research aimed to understand melanoma epidemiology in Brazil and to evaluate temporal trends in incidence and mortality. The data came from Brazilian Hospital Cancer Registries, Population Based Cancer Registries, and the National Mortality Information System from 2000 to 2014. Descriptive statistics were used for epidemiological and clinical characteristics. To describe trends in change in incidence and mortality rates, the Average Annual Percentage Change (AAPC) was calculated. Between 2000 and 2013, in men, the median incidence rate rose from 2.52 to 4.84, with an AAPC of +21.5% [95% confidence interval (CI): 15.4-28] and in women from 1.93 to 3.22 per 100 000, with an AAPC of +13.9% (95% CI: 8.1-20). Regarding mortality, between 2000 and 2014, the rates went from 0.85 to 0.9 per 100 000 for men (AAPC=+0.8, 95% CI: 0.4-1.1) and from 0.56 for 0.53 per 100 000 for women (AAPC=-0.1, 95% CI: -0.2 to 0). From the database, a total of 28 624 patients with melanoma were included. Most of the patients were females (51.9%), White (75%) and with stage I or II (53.2%). Sex, ethnicity, education level, geographical area of the cancer center, topography, histology, time between diagnosis and treatment, and early death were significantly associated with distant metastases. Brazil is a large country with a very young population and a low rate of melanoma incidence and prevalence that should increase over the years. Understanding the trends attributed to melanoma is important for behavioral counseling interventions that focus on promoting skin cancer prevention.
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140
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Chor D, Pereira A, Pacheco AG, Santos RV, Fonseca MJM, Schmidt MI, Duncan BB, Barreto SM, Aquino EML, Mill JG, Molina MD, Giatti L, Almeida MD, Bensenor I, Lotufo PA. Context-dependence of race self-classification: Results from a highly mixed and unequal middle-income country. PLoS One 2019; 14:e0216653. [PMID: 31095585 PMCID: PMC6522012 DOI: 10.1371/journal.pone.0216653] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 04/25/2019] [Indexed: 02/07/2023] Open
Abstract
Ethnic-racial classification criteria are widely recognized to vary according to historical, cultural and political contexts. In Brazil, the strong influence of individual socio-economic factors on race/colour self-classification is well known. With the expansion of genomic technologies, the use of genomic ancestry has been suggested as a substitute for classification procedures such as self-declaring race, as if they represented the same concept. We investigated the association between genomic ancestry, the racial composition of census tracts and individual socioeconomic factors and self-declared race/colour in a cohort of 15,105 Brazilians. Results show that the probability of self-declaring as black or brown increases according to the proportion of African ancestry and varies widely among cities. In Porto Alegre, where most of the population is white, with every 10% increase in the proportion of African ancestry, the odds of self-declaring as black increased 14 times (95%CI 6.08-32.81). In Salvador, where most of the population is black or brown, that increase was of 3.98 times (95%CI 2.96-5.35). The racial composition of the area of residence was also associated with the probability of self-declaring as black or brown. Every 10% increase in the proportion of black and brown inhabitants in the residential census tract increased the odds of self-declaring as black by 1.33 times (95%CI 1.24-1.42). Ancestry alone does not explain self-declared race/colour. An emphasis on multiple situational contexts (both individual and collective) provides a more comprehensive framework for the study of the predictors of self-declared race/colour, a highly relevant construct in many different scenarios, such as public policy, sociology and medicine.
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Affiliation(s)
- Dóra Chor
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
- * E-mail:
| | - Alexandre Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of São Paulo, São Paulo, SP, Brazil
| | - Antonio G. Pacheco
- Scientific Computing Program, Oswaldo Cruz Foundation, Rio de Janeiro, RJ Brazil
| | - Ricardo V. Santos
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
- Department of Anthropology, Museu Nacional, Rio de Janeiro, RJ Brazil
| | - Maria J. M. Fonseca
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Maria I. Schmidt
- Postgraduate Program in Epidemiology, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Bruce B. Duncan
- Postgraduate Program in Epidemiology, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Sandhi M. Barreto
- Faculty of Medicine & Clinical Hospital, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Estela M. L. Aquino
- Institute of Collective Health, Federal University of Bahia, Salvador, BA Brazil
| | - José G. Mill
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, ES Brazil
| | - Maria delCB Molina
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, ES Brazil
| | - Luana Giatti
- Faculty of Medicine & Clinical Hospital, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | | | - Isabela Bensenor
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo, São Paulo, SP Brazil
| | - Paulo A. Lotufo
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo, São Paulo, SP Brazil
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141
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Mendes C, Viana VST, Pasoto SG, Leon EP, Bonfa E, Sampaio-Barros PD. Clinical and laboratory features of African-Brazilian patients with systemic sclerosis. Clin Rheumatol 2019; 39:9-17. [PMID: 31065858 DOI: 10.1007/s10067-019-04575-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 04/15/2019] [Accepted: 04/22/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE African-Brazilians comprise a group of blacks and "pardos." As racial differences can be associated with distinct presentations, we evaluated the clinical and serological associations of African-Brazilians with systemic sclerosis (SSc). METHODS Sera from 260 adult SSc patients (203 whites and 57 African-Brazilians) were evaluated. Patients with overlap syndromes were excluded. Clinical and demographic data were obtained from an electronic register database. Laboratory analysis included the following: anti-CENP-A/CENP-B, Scl70, RNA polymerase III, Ku, fibrillarin, Th/To, PM-Scl75, and PM-Scl100 by line immunoassay and anti-nuclear antibodies (ANA) by indirect immunofluorescence (IIF) on HEp-2 cells. RESULTS African-Brazilian SSc patients presented shorter disease duration (12.8 ± 6.5 vs. 15.9 ± 8.1 years, p = 0.009), higher frequency of nucleolar ANA pattern (28% vs. 13%, p = 0.008), and lower frequencies of centromeric ANA pattern (14% vs. 29%, p = 0.026) and CENP-B (18% vs. 34%, p = 0.017), as well as an association with severe interstitial lung disease (58% vs. 43%; p = 0.044). Further comparison of ethnic groups according to subsets revealed that diffuse SSc African-Brazilian patients presented higher frequency of pulmonary hypertension (p = 0.017), heart involvement (p = 0.037), nucleolar ANA pattern (p = 0.036), anti-fibrillarin antibodies (p = 0.037), and higher mortality (48% vs. 19%; p = 0.009). A different pattern was observed for the limited subset with solely a lower frequency of esophageal involvement (p = 0.050) and centromeric ANA pattern (p = 0.049). Survival analysis showed that African-Brazilians had a higher mortality, when adjusted for age, gender, and clinical subset (RR 2.06, CI 95% 1.10-3.83, p = 0.023). CONCLUSION African-Brazilians have distinct characteristics according to clinical subset and an overall more severe SSc than whites, similar to the blacks from other countries.Key Points • African-Brazilian SSc patients were associated with severe interstitial lung disease and nucleolar ANA pattern when compared to white SSc patients. • When disease subsets were considered, African-Brazilian patients with diffuse SSc presented association with pulmonary hypertension, heart involvement, nucleolar ANA pattern, and anti-fibrillarin antibodies. • White SSc patients were associated with centromeric ANA pattern. • Survival analysis at 5, 10, 15, and 20 years, adjusted for age, gender, and disease subset, was significantly worse in African-Brazilian SSc patients.
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Affiliation(s)
- Cristiane Mendes
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.,Universidade Federal de Alfenas, Alfenas, Brazil
| | - Vilma S T Viana
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Sandra G Pasoto
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Elaine P Leon
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Eloisa Bonfa
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Percival D Sampaio-Barros
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil. .,Disciplina de Reumatologia, Universidade de São Paulo, Avenida Dr. Arnaldo 455, sala 3142, Cerqueira César, Sao Paulo, SP, 01246-903, Brazil.
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142
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Valle-Silva GD, Souza FDND, Marcorin L, Pereira ALE, Carratto TMT, Debortoli G, Oliveira MLGD, Fracasso NCDA, Andrade ESD, Donadi EA, Norton HL, Parra EJ, Simões AL, Castelli EC, Mendes-Junior CT. Applicability of the SNPforID 52-plex panel for human identification and ancestry evaluation in a Brazilian population sample by next-generation sequencing. Forensic Sci Int Genet 2019; 40:201-209. [DOI: 10.1016/j.fsigen.2019.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 02/19/2019] [Accepted: 03/02/2019] [Indexed: 12/14/2022]
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Amorim CA, De Souza LP, Moreira JP, Luiz RR, De V Carneiro AJ, De Souza HSP. Geographic distribution and time trends of esophageal cancer in Brazil from 2005 to 2015. Mol Clin Oncol 2019; 10:631-638. [PMID: 31086670 DOI: 10.3892/mco.2019.1842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/05/2019] [Indexed: 12/18/2022] Open
Abstract
The purpose of the present study was to investigate the geographical distribution and time trends of the incidence and lethality of esophageal cancer (EC) in Brazil. The present study conducted an ecological study of EC using records from January 2005 to December 2015 in the Health Informatics Department of the Brazilian Ministry of Health (DATASUS) registry. In addition to demographical data on the population, EC incidence and lethality rates were estimated from hospitalizations and in-hospital mortalities and were adjusted by total available hospital beds. The adjusted EC rates per 100,000 increased from 9.1 in 2005 to 12.1 in 2015. The prevalence among males increased from 69 to 78%, while the female rates remained stable over the same period. Although EC was the most common in South and Southeast Brazil, the rates increased proportionately more in the other regions of the country, especially among males. Geographical analysis revealed higher rates of EC in more urbanized areas, with a coast-to-inland gradient. While rates increased in people older than 50 years, they decreased among people below this age. However, the lethality rates remained stable and high during the study period, overlapping with hospital admission rates. The recent increasing trend in the EC incidence, with shifts from the south towards the north and from more urbanized towards rural areas, suggests that environmental factors are crucial in EC pathogenesis. The concentration of EC in South Brazil may reflect the presence of major environmental factors in association with a possible genetic predisposition. The unchanging high mortality associated with EC in the rapidly aging population suggests that EC will continue to impose a significant social and economic burden in the future.
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Affiliation(s)
- César Augusto Amorim
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil
| | - Lucila Perrota De Souza
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil
| | - Jessica P Moreira
- Institute of Public Health Studies, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil
| | - Ronir R Luiz
- Institute of Public Health Studies, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil
| | - Antonio José De V Carneiro
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil
| | - Heitor S P De Souza
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-913, Brazil.,D'Or Institute for Research and Education (IDOR), Rio de Janeiro 22281-100, Brazil
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Araujo LF, Molfetta GA, Vincenzi OC, Huber J, Teixeira LA, Ferraz VE, Silva WA. Molecular basis of familial adenomatous polyposis in the southeast of Brazil: identification of six novel mutations. Int J Biol Markers 2019; 34:80-89. [PMID: 30852976 DOI: 10.1177/1724600818814462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND The goal of this study was to screen point mutations and deletions in APC and MUTYH genes in patients suspected of familial adenomatous polyposis (FAP) in a Brazilian cohort. METHODS We used high-resolution melting, Sanger direct sequencing and multiplex ligation-dependent probe association (MLPA) assays to identify point mutations, and large genomic variations within the coding regions of APC and MUTYH genes. RESULTS We identified 19 causative mutations in 40 Brazilian patients from 20 different families. Four novel mutations were identified in the APC gene and two in the MUTYH gene. We also found a high intra- and inter-familial diversity regarding extracolonic manifestations, and gastric polyps were the most common manifestation found in our cohort. CONCLUSION We believe that the FAP mutational spectrum can be population-specific and screening FAP patients in different populations can improve pre-clinical diagnosis and improve clinical conduct.
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Affiliation(s)
- Luiza Ferreira Araujo
- 1 Departament of Genetics, Ribeirão Preto Medical School, University of São Paulo, Brazil.,3 Center for Cell-Based Therapy CEPID/FAPESP, and Regional Blood Center of Ribeirão Preto, Brazil.,5 Medical Genomics Laboratory, AC Camargo Cancer Center, Brazil
| | - Greice Andreotti Molfetta
- 1 Departament of Genetics, Ribeirão Preto Medical School, University of São Paulo, Brazil.,2 Center for Medical Genomics at Clinical Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil.,3 Center for Cell-Based Therapy CEPID/FAPESP, and Regional Blood Center of Ribeirão Preto, Brazil
| | - Otavio Costa Vincenzi
- 2 Center for Medical Genomics at Clinical Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil.,3 Center for Cell-Based Therapy CEPID/FAPESP, and Regional Blood Center of Ribeirão Preto, Brazil.,4 Medical Genetics Unit, Clinical Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Jair Huber
- 4 Medical Genetics Unit, Clinical Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Lorena Alves Teixeira
- 4 Medical Genetics Unit, Clinical Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Victor Evangelista Ferraz
- 1 Departament of Genetics, Ribeirão Preto Medical School, University of São Paulo, Brazil.,2 Center for Medical Genomics at Clinical Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil.,4 Medical Genetics Unit, Clinical Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Wilson Araujo Silva
- 1 Departament of Genetics, Ribeirão Preto Medical School, University of São Paulo, Brazil.,2 Center for Medical Genomics at Clinical Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil.,3 Center for Cell-Based Therapy CEPID/FAPESP, and Regional Blood Center of Ribeirão Preto, Brazil.,4 Medical Genetics Unit, Clinical Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil
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145
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Maciel RMB, Camacho CP, Assumpção LVM, Bufalo NE, Carvalho AL, de Carvalho GA, Castroneves LA, de Castro FM, Ceolin L, Cerutti JM, Corbo R, Ferraz TMBL, Ferreira CV, França MIC, Galvão HCR, Germano-Neto F, Graf H, Jorge AAL, Kunii IS, Lauria MW, Leal VLG, Lindsey SC, Lourenço DM, Maciel LMZ, Magalhães PKR, Martins JRM, Martins-Costa MC, Mazeto GMFS, Impellizzeri AI, Nogueira CR, Palmero EI, Pessoa CHCN, Prada B, Siqueira DR, Sousa MSA, Toledo RA, Valente FOF, Vaisman F, Ward LS, Weber SS, Weiss RV, Yang JH, Dias-da-Silva MR, Hoff AO, Toledo SPA, Maia AL. Genotype and phenotype landscape of MEN2 in 554 medullary thyroid cancer patients: the BrasMEN study. Endocr Connect 2019; 8:289-298. [PMID: 30763276 PMCID: PMC6410763 DOI: 10.1530/ec-18-0506] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/13/2019] [Indexed: 12/26/2022]
Abstract
Multiple endocrine neoplasia type 2 (MEN2) is an autosomal dominant genetic disease caused by RET gene germline mutations that is characterized by medullary thyroid carcinoma (MTC) associated with other endocrine tumors. Several reports have demonstrated that the RET mutation profile may vary according to the geographical area. In this study, we collected clinical and molecular data from 554 patients with surgically confirmed MTC from 176 families with MEN2 in 18 different Brazilian centers to compare the type and prevalence of RET mutations with those from other countries. The most frequent mutations, classified by the number of families affected, occur in codon 634, exon 11 (76 families), followed by codon 918, exon 16 (34 families: 26 with M918T and 8 with M918V) and codon 804, exon 14 (22 families: 15 with V804M and 7 with V804L). When compared with other major published series from Europe, there are several similarities and some differences. While the mutations in codons C618, C620, C630, E768 and S891 present a similar prevalence, some mutations have a lower prevalence in Brazil, and others are found mainly in Brazil (G533C and M918V). These results reflect the singular proportion of European, Amerindian and African ancestries in the Brazilian mosaic genome.
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Affiliation(s)
- Rui M B Maciel
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- Correspondence should be addressed to R M B Maciel or S C Lindsey: or
| | - Cleber P Camacho
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Lígia V M Assumpção
- Faculdade de Ciências Médicas, Universidade de Campinas, Campinas, São Paulo, Brazil
| | - Natassia E Bufalo
- Faculdade de Ciências Médicas, Universidade de Campinas, Campinas, São Paulo, Brazil
| | | | - Gisah A de Carvalho
- Faculdade de Medicina, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Luciana A Castroneves
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
| | | | - Lucieli Ceolin
- Hospital de Clínicas de Porto Alegre and Faculdade de Medicina da Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Janete M Cerutti
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Rossana Corbo
- Instituto Nacional do Câncer, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Carla V Ferreira
- Hospital de Clínicas de Porto Alegre and Faculdade de Medicina da Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - M Inez C França
- Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
- Hospital Santa Rita de Cássia, Vitória, Espírito Santo, Brazil
| | | | - Fausto Germano-Neto
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Hans Graf
- Faculdade de Medicina, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Alexander A L Jorge
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Ilda S Kunii
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Márcio W Lauria
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vera L G Leal
- Instituto Estadual de Diabetes e Endocrinologia, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Susan C Lindsey
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- Correspondence should be addressed to R M B Maciel or S C Lindsey: or
| | - Delmar M Lourenço
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
| | - Léa M Z Maciel
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Patrícia K R Magalhães
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - João R M Martins
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - M Cecília Martins-Costa
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- Hospital Geral de Fortaleza, Fortaleza, Ceará, Brazil
- Universidade de Fortaleza, Fortaleza, Ceará, Brazil
| | - Gláucia M F S Mazeto
- Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Anelise I Impellizzeri
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Célia R Nogueira
- Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Edenir I Palmero
- Hospital de Câncer de Barretos, Barretos, São Paulo, Brazil
- Faculdade de Ciências da Saúde de Barretos Dr. Paulo Prata, Barretos, São Paulo, Brazil
| | | | - Bibiana Prada
- Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Débora R Siqueira
- Hospital de Clínicas de Porto Alegre and Faculdade de Medicina da Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Maria Sharmila A Sousa
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- Escola Fiocruz de Governo, Fundação Oswaldo Cruz and Ministério da Saúde, Brasília, Distrito Federal, Brazil
| | - Rodrigo A Toledo
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Vall d’Hebron Institute of Oncology (VHIO), CIBERONC, Barcelona, Spain
| | - Flávia O F Valente
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Fernanda Vaisman
- Instituto Nacional do Câncer, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Laura S Ward
- Faculdade de Ciências Médicas, Universidade de Campinas, Campinas, São Paulo, Brazil
| | - Shana S Weber
- Hospital de Clínicas de Porto Alegre and Faculdade de Medicina da Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rita V Weiss
- Instituto Estadual de Diabetes e Endocrinologia, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ji H Yang
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Magnus R Dias-da-Silva
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Ana O Hoff
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
| | - Sergio P A Toledo
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Ana L Maia
- Hospital de Clínicas de Porto Alegre and Faculdade de Medicina da Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Melo-Felippe FB, Fontenelle LF, Kohlrausch FB. Gene variations in PBX1, LMX1A and SLITRK1 are associated with obsessive-compulsive disorder and its clinical features. J Clin Neurosci 2019; 61:180-185. [PMID: 30377043 DOI: 10.1016/j.jocn.2018.10.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 10/07/2018] [Indexed: 12/19/2022]
Abstract
Genetic factors probably influence OCD development and a current hypothesis proposes that genes involved in the development of the central nervous system (CNS) are related to OCD. The aim of this study was to analyze six Single Nucleotide Polymorphisms (SNPs) in five genes with functions related to neurodevelopment in OCD. A total of 203 patient and 203 control samples were genotyped using the TaqMan® methodology. Statistically significant associations between OCD and PBX1 (rs2275558) in total sample (P = 0.002) and in males (P = 0.0003) were observed. Concerning symptom dimensions, the expression of neutralization showed a statistical significant association with LMX1A (rs4657411, P = 0.004) in total sample. We also observed significant association between LMX1A (rs4657411) and washing dimension in females (P = 0.01). Additionally, SLITRK1 (rs9593835) was significantly associated with checking dimension in male patients (P = 0.04). Our results indicate an important influence of neurodevelopment genes in the OCD susceptibility. Additional studies with larger samples are needed to confirm these results.
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Affiliation(s)
- Fernanda B Melo-Felippe
- Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense (UFF), Niterói, Brazil
| | - Leonardo F Fontenelle
- Programa de Transtornos Obsessivo-Compulsivos e de Ansiedade, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro (UFRJ), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Instituto D'Or de Pesquisa e Ensino (IDOR), Rio de Janeiro, Brazil; School of Psychological Sciences, MONASH University, Melbourne, Australia
| | - Fabiana B Kohlrausch
- Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense (UFF), Niterói, Brazil.
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147
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Rodrigues-Soares F, Suarez-Kurtz G. Pharmacogenomics research and clinical implementation in Brazil. Basic Clin Pharmacol Toxicol 2019; 124:538-549. [PMID: 30589990 DOI: 10.1111/bcpt.13196] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/17/2018] [Indexed: 12/23/2022]
Abstract
We searched PubMed entries and the Lattes database of Brazilian Pharmacogenetics Network investigators, for pharmacogenetic/genomic (PGx) studies in the Brazilian population, focusing on the drugs and genes included in the Clinical Pharmacogenetics Implementation Consortium (CPIC) guidelines. Warfarin was the most extensively studied drug in a PGx context: a genomewide association study targeting warfarin stable dose identified significant signals in VKORC1 and CYP2C9, several PGx dosing algorithms were developed based on these and other genes, and the implications of population admixture on extrapolation of dosing recommendations in the CPIC guidelines were examined. A study in renal transplanted patients disclosed association of CYP3A5*6 and CYP3A5*7 with tacrolimus dosing, which led to addition of these variants to CYP3A5*3 in the CPIC tacrolimus guideline. Studies verified predisposition of HIV-positive carriers of UGT1A1*28 to severe atazanavir-induced hyperbilirubinaemia, intolerance to 5-fluorouracyl in gastrointestinal cancer patients with deleterious DPYD variants, failure of HCV-infected carriers of IFNL3 rs12979860 to obtain a sustained viral response to PEG-IFN-α, and hypersensitivity reactions to abacavir in HIV-positive carriers of HLA-B*57:01. No prospective analyses of drug therapy outcomes or cost-effectiveness assessments of PGx-guided therapy were found. In conclusion, the limited adoption of PGx-informed drug prescription in Brazil reflects combination of recognized barriers to PGx implementation worldwide plus factors specific to the Brazilian population. The latter include rarity/absence of genetic variants on which international PGx guidelines are based (eg HLA-B*15.02 for phenytoin and carbamazepine) and the caveat of extrapolating to the admixed Brazilian population, guidelines based on categorical variables, such as continental ancestry (eg warfarin guidelines), "race" or ethnicity.
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Suarez-Kurtz G, Aklillu E, Saito Y, Somogyi AA. Conference report: pharmacogenomics in special populations at WCP2018. Br J Clin Pharmacol 2019; 85:467-475. [PMID: 30537134 DOI: 10.1111/bcp.13828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/19/2018] [Accepted: 11/21/2018] [Indexed: 12/12/2022] Open
Abstract
The 18th World Congress of Basic and Clinical Pharmacology (WCP2018), coordinated by IUPHAR and hosted by the Japanese Pharmacological Society and the Japanese Society of Clinical Pharmacology and Therapeutics, was held in July 2018 at the Kyoto International Conference Center, in Kyoto, Japan. Having as its main theme 'Pharmacology for the Future: Science, Drug Development and Therapeutics', WCP2018 was attended by over 4500 delegates, representing 78 countries. The present report is an overview of a symposium at WCP2018, entitled Pharmacogenomics in Special Populations, organized by IUPHAR´s Pharmacogenetics/Genomics (PGx) section. The PGx section congregates distinguished scientists from different continents, covering expertise from basic research, to clinical implementation and ethical aspects of PGx, and one of its major activities is the coordination of symposia and workshops to foster exchange of PGx knowledge (https://iuphar.org/sections-subcoms/pharmacogenetics-genomics/). The symposium attracted a large audience to listen to presentations covering various areas of research and clinical adoption of PGx in Oceania, Africa, Latin America and Asia.
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Affiliation(s)
| | - Eleni Aklillu
- Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yoshiro Saito
- Division of Medical Safety Science, National Institute of Health Sciences, Kawasaki, Japan
| | - Andrew A Somogyi
- Discipline of Pharmacology, Adelaide Medical School, University of Adelaide, Adelaide, Australia
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Soares JL, Oliveira EM, Pontillo A. Variants in NLRP3 and NLRC4 inflammasome associate with susceptibility and severity of multiple sclerosis. Mult Scler Relat Disord 2019; 29:26-34. [PMID: 30658261 DOI: 10.1016/j.msard.2019.01.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Multiple sclerosis (MS) is a neurodegenerative disease of central nervous system (CNS) with autoimmune and inflammatory characteristics, and a still uncertain pathogenesis. Early events as well as evolution of MS are heterogeneous (three main clinical forms) and multifactorial. Genome-wide association studies indicate that MS pathogenesis shares features with both autoimmune and inflammatory diseases. Innate immunity has been recently proved to be an important factor in MS. Genetic variants in inflammasome components have been associated with both autoimmune and neurodegenerative diseases, letting us hypothesize that inflammasome, and related cytokines IL-1ß and IL-18, could represent important contributors in MS pathogenesis, and eventually explain, at least in part, the heterogeneity observed in MS patients. AIM To evaluate the contribution of inflammasome in MS, in term of (a) genetic effect on development, severity and/or prognosis, and (b) complex activation in peripheral blood as a measure of systemic inflammation. METHODS Functional genetic variants in inflammasome components were analyzed in a cohort of MS patients, by the use of allele-specific assays and qPCR. Multivariate analysis was performed based on clinical form (recurrent remittent/RR, primary progressive/PP or secondary progressive/SP), severity index (EDSS) and progression index (PI), response to IFN-ß treatment. Peripheral blood monocytes (PBM) of patients were examined for inflammasome activation and expression profile. RESULTS AND DISCUSSION Variants associated with low serum levels of IL-18 were significantly less frequent in MS patients than in controls, suggesting a protective role of diminished IL-18-mediate inflammation in MS development. On the other hands, gain-of-function variants in NLRP3 (Q705K) and IL1B (-511 C >T) associated with severity and progression of MS, suggesting that a constitutive activation of NLRP3 inflammasome could represent a risk factor for MS clinical presentation. Accordingly, -511C >T SNP resulted more frequent in progressive forms than in RR MS, reinforcing the idea that increased inflammasome activation characterized bad prognosis of MS. Altogether these findings corroborate previous data about the harmful role of NLRP3 inflammasome in experimental autoimmune encephalitis (EAE). Moreover, we reported for the first time the beneficial effect of NLRC4 rs479333 G >C variant in MS progression and in the response to IFN-ß treatment. This intronic polymorphism have been previously associated to decreased NLRC4 transcription and low IL-18 serum level, indicated once more that less activation of inflammasome and IL-18 production are beneficial for MS patients. PBM analysis showed that MS cells express higher level of inflammasome genes than HD ones, and are more prone to respond to a classical NLRP3 stimulus than HD.
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Affiliation(s)
- Jaine Ls Soares
- Laboratorio de Imunogenetica, Departamento de Imunologia, Instituto de Ciencias Biomédicas (ICB), Universidade de Sao Paulo (USP). Avenida Professor Lineu Prestes 1730, Sao Paulo, Brazil
| | - Enedina Ml Oliveira
- Ambulatório de Doenças Desmielinizantes, Departamento de Neurologia e Neurocirurgia, Universidade Federal de Sao Paulo (UNIFESP). Rua Pedro de Toledo 650, Sao Paulo, Brazil
| | - Alessandra Pontillo
- Laboratorio de Imunogenetica, Departamento de Imunologia, Instituto de Ciencias Biomédicas (ICB), Universidade de Sao Paulo (USP). Avenida Professor Lineu Prestes 1730, Sao Paulo, Brazil.
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Association between Hand Digit Ratio (2D : 4D) and Acute Lymphoblastic Leukemia. DISEASE MARKERS 2019; 2018:4938725. [PMID: 30598707 PMCID: PMC6287137 DOI: 10.1155/2018/4938725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/20/2018] [Indexed: 11/20/2022]
Abstract
Objective Digit ratio (2D : 4D) has been suggested as a biomarker for prenatal hormone activity and has been linked to several types of cancer. This study investigated the possible correlation between 2D : 4D ratios and acute lymphoblastic leukemia. Methods A case-control study was performed with Brazilian subjects. Direct measurements of the lengths of index and ring fingers of both hands of patients with acute lymphoblastic leukemia (n = 43) and controls matched by age and gender (n = 86) were obtained by using a digital vernier caliper. Mean ratios between the second and fourth digits were compared. Data were analyzed by Student's t-test with a significance level of 5%. Results No significant difference was found between the mean digit ratios of the right and left hands between the groups for any analysis (p > 0.05), neither for the whole sample nor for the distribution by gender. Conclusions We observed that patients with acute lymphoblastic leukemia do not have a different digit pattern when compared with unaffected individuals, which may suggest that exposure to prenatal sex hormone is similar between groups.
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