Genetic variability of platelet glycoprotein Ibα gene
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2004 |
| Outros Autores: | , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://repositorio.ufba.br/ri/handle/ri/14277 |
Resumo: | Texto completo: acesso restrito. p. 107–116 |
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Gonçalves, Marilda S.Ozelo, Margareth C.Costa, Devanira S. P.Siqueira, Lucia H.Machado, Tania M. F.Castro, VagnerMenezes, Raimundo C.Soares, Manoel C. P.Annichino-Bizzacchi, Joyce MariaCosta, Fernando FerreiraArruda, Valder RobervalGonçalves, Marilda S.Ozelo, Margareth C.Costa, Devanira S. P.Siqueira, Lucia H.Machado, Tania M. F.Castro, VagnerMenezes, Raimundo C.Soares, Manoel C. P.Annichino-Bizzacchi, Joyce MariaCosta, Fernando FerreiraArruda, Valder Roberval2014-01-07T13:08:26Z20040361-8609http://repositorio.ufba.br/ri/handle/ri/14277v. 77, n. 2Texto completo: acesso restrito. p. 107–116Platelet membrane glycoprotein (GP) Ibα is a critical component of platelet adhesion complex to subendothelium structures following tissue injury or pathological surfaces, such as atherosclerotic plaques. Polymorphisms of the GPIbα gene have been associated with a high risk for occlusive vascular disease, and its distribution varies considerably among distinct populations. These polymorphisms comprise the human platelet antigen (HPA)-2 system, the −5C/T dimorphism of the Kozak sequence, and the variable number of tandem 39-bp repeats (VNTR). Here we report the prevalence of the GPIbα gene polymorphisms among Brazilians, a highly ethnically diverse population. We analyzed 492 subjects of European, African, or Indigenous origin. It was possible to determine ten distinct haplotypes. The most common (∽40%) haplotype was the Kozak-TT/HPA-2aa/VNTR-CC for both Caucasian and African descent. However, among Indigenous, Kozak-TT/HPA-2aa/VNTR-CC and Kozak-TC/HPA-2aa/VNTR-CC were equally present. Although a strong linkage disequilibrium between VNTR and HPA-2 polymorphism had also been observed, here we determined incomplete linkage disequilibrium in 10% of subjects from all ethnic groups. VNTR-E, a rare variant lacking the 39-bp repeat, was identified in two unrelated subjects, and functional platelet studies revealed no abnormalities. The VNTR-A allele, the largest variant containing four copies of the repeats, was not identified in this population. However, homozygosity for the VNTR-A allele (Kozak-TT/HPA-2aa/VNTR-AA) was determined in two distinct species of nonhuman primates. These results suggest a greater complex evolutionary mechanism in the macroglycoprotein region of the GPIbα gene and may be useful in the design of gene–disease association studies for vascular disease. Am. J. Hematol. 77:107–116, 2004. © 2004 Wiley-Liss, Inc.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2013-12-04T10:32:32Z No. of bitstreams: 1 Marilda S. Gonçalves.pdf: 292735 bytes, checksum: f34b58f8d197bcdce7e6a4bdb6dcd805 (MD5)Approved for entry into archive by Flávia Ferreira (flaviaccf@yahoo.com.br) on 2014-01-07T13:08:26Z (GMT) No. of bitstreams: 1 Marilda S. Gonçalves.pdf: 292735 bytes, checksum: f34b58f8d197bcdce7e6a4bdb6dcd805 (MD5)Made available in DSpace on 2014-01-07T13:08:26Z (GMT). No. of bitstreams: 1 Marilda S. Gonçalves.pdf: 292735 bytes, checksum: f34b58f8d197bcdce7e6a4bdb6dcd805 (MD5) Previous issue date: 2004http://dx.doi.org/ 10.1002/ajh.20148reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAGlycoprotein Ib alphaPolymorphismPlateletGenetic diversityGenetic variability of platelet glycoprotein Ibα geneAmerican Journal of Hematologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINALMarilda S. Gonçalves.pdfMarilda S. Gonçalves.pdfapplication/pdf292735https://repositorio.ufba.br/bitstream/ri/14277/1/Marilda%20S.%20Gon%c3%a7alves.pdff34b58f8d197bcdce7e6a4bdb6dcd805MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14277/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTMarilda S. Gonçalves.pdf.txtMarilda S. 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| dc.title.pt_BR.fl_str_mv |
Genetic variability of platelet glycoprotein Ibα gene |
| dc.title.alternative.pt_BR.fl_str_mv |
American Journal of Hematology |
| title |
Genetic variability of platelet glycoprotein Ibα gene |
| spellingShingle |
Genetic variability of platelet glycoprotein Ibα gene Gonçalves, Marilda S. Glycoprotein Ib alpha Polymorphism Platelet Genetic diversity |
| title_short |
Genetic variability of platelet glycoprotein Ibα gene |
| title_full |
Genetic variability of platelet glycoprotein Ibα gene |
| title_fullStr |
Genetic variability of platelet glycoprotein Ibα gene |
| title_full_unstemmed |
Genetic variability of platelet glycoprotein Ibα gene |
| title_sort |
Genetic variability of platelet glycoprotein Ibα gene |
| author |
Gonçalves, Marilda S. |
| author_facet |
Gonçalves, Marilda S. Ozelo, Margareth C. Costa, Devanira S. P. Siqueira, Lucia H. Machado, Tania M. F. Castro, Vagner Menezes, Raimundo C. Soares, Manoel C. P. Annichino-Bizzacchi, Joyce Maria Costa, Fernando Ferreira Arruda, Valder Roberval |
| author_role |
author |
| author2 |
Ozelo, Margareth C. Costa, Devanira S. P. Siqueira, Lucia H. Machado, Tania M. F. Castro, Vagner Menezes, Raimundo C. Soares, Manoel C. P. Annichino-Bizzacchi, Joyce Maria Costa, Fernando Ferreira Arruda, Valder Roberval |
| author2_role |
author author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Gonçalves, Marilda S. Ozelo, Margareth C. Costa, Devanira S. P. Siqueira, Lucia H. Machado, Tania M. F. Castro, Vagner Menezes, Raimundo C. Soares, Manoel C. P. Annichino-Bizzacchi, Joyce Maria Costa, Fernando Ferreira Arruda, Valder Roberval Gonçalves, Marilda S. Ozelo, Margareth C. Costa, Devanira S. P. Siqueira, Lucia H. Machado, Tania M. F. Castro, Vagner Menezes, Raimundo C. Soares, Manoel C. P. Annichino-Bizzacchi, Joyce Maria Costa, Fernando Ferreira Arruda, Valder Roberval |
| dc.subject.por.fl_str_mv |
Glycoprotein Ib alpha Polymorphism Platelet Genetic diversity |
| topic |
Glycoprotein Ib alpha Polymorphism Platelet Genetic diversity |
| description |
Texto completo: acesso restrito. p. 107–116 |
| publishDate |
2004 |
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2004 |
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2014-01-07T13:08:26Z |
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0361-8609 |
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v. 77, n. 2 |
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0361-8609 v. 77, n. 2 |
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http://repositorio.ufba.br/ri/handle/ri/14277 |
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