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Nascimento PP, Bossolani-Martins AL, Rosan DBA, Mattos LC, Brandão-Mattos C, Fett-Conte AC. Single nucleotide polymorphisms in the CNTNAP2 gene in Brazilian patients with autistic spectrum disorder. Genet Mol Res 2016; 15:gmr7422. [PMID: 26909962 DOI: 10.4238/gmr.15017422] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The role of some genes and their single nucleotide polymorphisms (SNPs) as genetic contributors of complex diseases is still a topic of much investigation. Research on genes related to autism susceptibility has been somewhat challenging, but also promising. Common genomic variants of CNTNAP2 have been associated with autism, and a range of autistic phenotypes such as impaired language function, abnormal social behavior, intellectual deficiency, epilepsy, and schizophrenia have been associated with this gene. Earlier findings have suggested that SNPs in the CNTNAP2 gene may be used as genetic markers for predisposition to autism spectrum disorder (ASD). We analyzed the SNPs (rs7794745 and rs2710102) in the CNTNAP2 gene of 210 individuals with idiopathic ASD and 200 non-autistic individuals by polymerase chain reaction-restriction fragment length polymorphism. The results revealed higher frequency distributions statistically significant (P = 0.034) of the homozygous SNP rs7794745 (presumed risk genotype) in ASD patients as compared with control subjects. The results also showed an association (OR = 1.802, 95%CI = 1.054-3.083, P = 0.042) between the same homozygous genotype and ASD, suggesting that it is a susceptibility factor for autism in this Brazilian population.
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Affiliation(s)
- P P Nascimento
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Preto, SP, Brasil
| | - A L Bossolani-Martins
- Universidade Federal de Mato Grosso do Sul, Campus de Paranaíba, Paranaíba, SP, Brasil
| | - D B A Rosan
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Preto, SP, Brasil
| | - L C Mattos
- Departamento de Biologia Molecular, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, Brasil
| | - C Brandão-Mattos
- Departamento de Biologia Molecular, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, Brasil
| | - A C Fett-Conte
- Departamento de Biologia Molecular, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, Brasil
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de Souza LT, Kowalski TW, Ferrari J, Monlléo IL, Ribeiro EM, de Souza J, Fett-Conte AC, de Araujo TK, Gil-da-Silva-Lopes VL, Ribeiro-dos-Santos ÂKC, dos Santos SEB, Félix TM. Study ofIRF6and 8q24 region in non-syndromic oral clefts in the Brazilian population. Oral Dis 2016; 22:241-5. [DOI: 10.1111/odi.12432] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/24/2015] [Accepted: 12/17/2015] [Indexed: 02/03/2023]
Affiliation(s)
- LT de Souza
- Laboratório de Medicina Genômica - Hospital de Clínicas de Porto Alegre; Porto Alegre Brazil
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - TW Kowalski
- Programa de Pós-Graduação em Genética e Biologia Molecular; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - J Ferrari
- Laboratório de Medicina Genômica - Hospital de Clínicas de Porto Alegre; Porto Alegre Brazil
| | - IL Monlléo
- Serviço de Genética Clínica; Faculdade de Medicina; Hospital Universitário Professor Alberto Antunes; Universidade Federal de Alagoas; Maceió Brazil
| | - EM Ribeiro
- Hospital Infantil Albert Sabin; Fortaleza Brazil
| | - J de Souza
- Centro de Atendimento Integral ao Fissurado Lábio-palatal; Curitiba Brazil
| | - AC Fett-Conte
- Serviço de Genética; Faculdade de Medicina de São José do Rio Preto; São José do Rio Preto Brazil
| | - TK de Araujo
- Departamento de Genética Médica; Faculdade de Ciências Médicas; Universidade de Campinas; Campinas Brazil
| | - VL Gil-da-Silva-Lopes
- Departamento de Genética Médica; Faculdade de Ciências Médicas; Universidade de Campinas; Campinas Brazil
| | - ÂKC Ribeiro-dos-Santos
- Laboratório de Genética Humana e Médica; Instituto de Ciências Biológicas; Universidade Federal do Pará; Belém Brazil
| | - SEB dos Santos
- Laboratório de Genética Humana e Médica; Instituto de Ciências Biológicas; Universidade Federal do Pará; Belém Brazil
| | - TM Félix
- Laboratório de Medicina Genômica - Hospital de Clínicas de Porto Alegre; Porto Alegre Brazil
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Serviço de Genética Médica; Hospital de Clínicas de Porto Alegre; Porto Alegre Brazil
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3
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Brusius-Facchin AC, Schwartz IVD, Zimmer C, Ribeiro MG, Acosta AX, Horovitz D, Monlleó IL, Fontes MIB, Fett-Conte A, Sobrinho RPO, Duarte AR, Boy R, Mabe P, Ascurra M, de Michelena M, Tylee KL, Besley GTN, Garreton MCV, Giugliani R, Leistner-Segal S. Mucopolysaccharidosis type II: identification of 30 novel mutations among Latin American patients. Mol Genet Metab 2014; 111:133-8. [PMID: 24125893 DOI: 10.1016/j.ymgme.2013.08.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 08/23/2013] [Indexed: 10/26/2022]
Abstract
In this study, 103 unrelated South-American patients with mucopolysaccharidosis type II (MPS II) were investigated aiming at the identification of iduronate-2-sulfatase (IDS) disease causing mutations and the possibility of some insights on the genotype-phenotype correlation The strategy used for genotyping involved the identification of the previously reported inversion/disruption of the IDS gene by PCR and screening for other mutations by PCR/SSCP. The exons with altered mobility on SSCP were sequenced, as well as all the exons of patients with no SSCP alteration. By using this strategy, we were able to find the pathogenic mutation in all patients. Alterations such as inversion/disruption and partial/total deletions of the IDS gene were found in 20/103 (19%) patients. Small insertions/deletions/indels (<22 bp) and point mutations were identified in 83/103 (88%) patients, including 30 novel mutations; except for a higher frequency of small duplications in relation to small deletions, the frequencies of major and minor alterations found in our sample are in accordance with those described in the literature.
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Affiliation(s)
| | - I V D Schwartz
- Post Graduation Program in Medical Sciences, UFRGS, Porto Alegre, RS, Brazil; Department of Genetics, UFRGS, Porto Alegre, Brazil; Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Brazil
| | - C Zimmer
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Brazil
| | - M G Ribeiro
- Clinical Genetics Service, IPPMG, UFRJ, Rio de Janeiro, Brazil
| | - A X Acosta
- Department of Pediatrics, UFBA, Salvador, Brazil
| | - D Horovitz
- Instituto Fernandes Figueira, FIOCRUZ, Rio de Janeiro, Brazil
| | - I L Monlleó
- Department of Pediatrics, UNCISAL, Maceió, Brazil
| | - M I B Fontes
- Department of Pediatrics, UNCISAL, Maceió, Brazil
| | - A Fett-Conte
- Department of Molecular Biology, FAMERP, São José do Rio Preto, Brazil
| | | | - A R Duarte
- Medical Genetics Service, IMIP, Recife, Brazil
| | - R Boy
- Mother and Child Department, UERJ, Rio de Janeiro, Brazil
| | - P Mabe
- Genetics and Metabolic Diseases Unit, INTA, University of Chile, Chile
| | - M Ascurra
- Department of Genetics, ILCS-UNA, Asunción, Paraguay
| | | | - K L Tylee
- Willink Biochemical Genetics Unit, Royal Manchester Children's Hospital, Manchester, UK
| | - G T N Besley
- Willink Biochemical Genetics Unit, Royal Manchester Children's Hospital, Manchester, UK
| | - M C V Garreton
- Unidad de Genética Clínica, Hospital Roberto del Río, Santiago, Chile
| | - R Giugliani
- Post Graduation Program in Medical Sciences, UFRGS, Porto Alegre, RS, Brazil; Department of Genetics, UFRGS, Porto Alegre, Brazil; Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Brazil
| | - S Leistner-Segal
- Post Graduation Program in Medical Sciences, UFRGS, Porto Alegre, RS, Brazil; Department of Genetics, UFRGS, Porto Alegre, Brazil; Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Brazil.
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4
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Freitas PC, Carvalho-Salles AB, Mendiburu CF, Ricci O, Fett-Conte AC. Clonal monosomy of chromosome 21 in a case of myelodysplastic syndrome. Genet Mol Res 2011; 10:2718-20. [PMID: 22095597 DOI: 10.4238/2011.november.4.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study reports on a cytogenetic finding in a bone marrow examination of a 47-year-old male patient treated in the Hematology and Blood Transfusion Service of the Hospital de Base in São José do Rio Preto, São Paulo State, Brazil. The only alteration found at diagnosis of myelodysplastic syndrome (MDS) subtype refractory anemia with excess blasts (RAEB-2) was clonal monosomy of chromosome 21. The patient evolved to acute myeloid leukemia type M2 and died nine months after diagnosis. Clonal monosomy of chromosome 21, as the only cytogenetic abnormality in MDS, has only been reported three times previously. This uncommon cytogenetic abnormality in MDS has been associated with a poor clinical course, although more data will be needed to determine if this prognosis is invariable.
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Affiliation(s)
- P C Freitas
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual de São Paulo Julio de Mesquita Filho, São José do Rio Preto, SP, Brasil
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5
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Schwartz IVD, Pinto LLC, Breda G, Lima L, Ribeiro MG, Mota JG, Acosta AX, Correia P, Horovitz DDG, Porciuncula CGG, Lipinski-Figueiredo E, Fett-Conte AC, Oliveira Sobrinho RP, Norato DYJ, Paula AC, Kim CA, Duarte AR, Boy R, Leistner-Segal S, Burin MG, Giugliani R. Clinical and biochemical studies in mucopolysaccharidosis type II carriers. J Inherit Metab Dis 2009; 32:732-738. [PMID: 19821143 DOI: 10.1007/s10545-009-1275-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Revised: 08/18/2009] [Accepted: 08/25/2009] [Indexed: 12/31/2022]
Abstract
The aim of the study was to characterize clinically and biochemically mucopolysaccharidosis type II (MPS II) heterozygotes. Fifty-two women at risk to be a carrier, with a mean age of 34.1 years (range 16-57 years), were evaluated through pedigree analysis, medical history, physical examination, measurement of iduronate sulfatase (IDS) activities in plasma and in leukocytes, quantification of glycosaminoglycans (GAGs) in urine, and analysis of the IDS gene. Eligibility criteria for the study also included being 16 years of age or older and being enrolled in a genetic counselling programme. The pedigree and DNA analyses allowed the identification of 40/52 carriers and 12/52 non-carriers. All women evaluated were clinically healthy, and their levels of urinary GAGs were within normal limits. Median plasma and leukocyte IDS activities found among carriers were significantly lower than the values found for non-carriers; there was, however, an overlap between carriers' and non-carriers' values. Our data suggests that MPS II carriers show lower plasma and leukocyte IDS activities but that this reduction is generally associated neither with changes in levels of urinary GAGs nor with the occurrence of clinical manifestations.
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Affiliation(s)
- I V D Schwartz
- Department of Genetics, UFRGS, Porto Alegre, Brazil.
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil.
| | - L L C Pinto
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
- Pediatrics Post Graduation Program, School of Medicine, UFRGS, Porto Alegre, Brazil
| | - G Breda
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
| | - L Lima
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
| | - M G Ribeiro
- Clinical Genetics Service, IPPMG, UFRJ, Rio de Janeiro, Brazil
| | - J G Mota
- Institute of Oncology of the South of Minas Gerais (ISMO), Pouso Alegre, Brazil
| | - A X Acosta
- Department of Pediatrics, School of Medicine of Bahia, UFBA, Salvador, Brazil
| | - P Correia
- Post Graduation Program in Women and Children Health, Fernandes Figueira Institute, FIOCRUZ, Rio de Janeiro, Brazil
| | - D D G Horovitz
- Department of Medical Genetics, Fernandes Figueira Institute, FIOCRUZ, Rio de Janeiro, Brazil
| | - C G G Porciuncula
- Clinical Genetics Service, University Hospital, UFAL, Maceió, Brazil
| | | | - A C Fett-Conte
- Department of Molecular Biology, FAMERP, São José do Rio Preto, Brazil
| | | | - D Y J Norato
- Department of Medical Genetics, UNICAMP, Campinas, Brazil
| | - A C Paula
- Genetics Unit, IC-HC-USP, São Paulo, Brazil
| | - C A Kim
- Genetics Unit, IC-HC-USP, São Paulo, Brazil
| | - A R Duarte
- Medical Genetics Service, IMIP, Recife, Brazil
| | - R Boy
- Pediatrics Department, UERJ, Rio de Janeiro, Brazil
| | - S Leistner-Segal
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
| | - M G Burin
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
| | - R Giugliani
- Department of Genetics, UFRGS, Porto Alegre, Brazil
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903, Porto Alegre, RS, Brazil
- Pediatrics Post Graduation Program, School of Medicine, UFRGS, Porto Alegre, Brazil
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6
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Mendiburu CF, Silva WA, Ricci O, Bonini-Domingos CR, Fett-Conte AC. Global gene expression profile in myelodysplastic syndromes using SAGE. Genet Mol Res 2009; 7:1245-50. [PMID: 19065759 DOI: 10.4238/vol7-4gmr521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The molecular pathogenesis of myelodysplastic syndromes (MDS) is poorly understood. In order to expand our knowledge of genetic defects in MDS, we determined the overall profile of genes expressed in bone marrow from patients with refractory anemia with excess blasts (RAEB) by serial analysis of gene expression (SAGE). The present report describes a partial transcriptome of RAEB bone marrow derived from 56,694 sequenced tags that provides information about expressed gene products. This is the first attempt to determine an overall profile of gene expression specifically in RAEB at diagnosis using SAGE, which should be useful in the understanding of the physiopathology of MDS and in identifying the genes involved.
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Affiliation(s)
- C F Mendiburu
- Departamento de Biologia, Instituto de Biociência Letras e Ciências Exatas, Universidade Estadual de São Paulo, São José do Rio Preto, SP, Brasil.
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7
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Barbosa-Gonçalves A, Vendrame-Goloni CB, Martins ALB, Fett-Conte AC. Subtelomeric region of chromosome 2 in patients with autism spectrum disorders. Genet Mol Res 2008; 7:527-33. [PMID: 18752177 DOI: 10.4238/vol7-2gmr448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Autism spectrum disorders are severe psychiatric diseases commonly identified in the population. They are diagnosed during childhood and the etiology has been much debated due to their variations and complexity. Onset is early and characterized as communication and social interaction disorders and as repetitive and stereotyped behavior. Autistic disorders may occur together with various genetic and chromosomal diseases. Several chromosomal regions and genes are implicated in the predisposition for these diseases, in particular those with products expressed in the central nervous system. There are reports of autistic and mentally handicapped patients with submicroscopic subtelomeric alterations at the distal end of the long arm of chromosome 2. Additionally, there is evidence that alterations at 2q37 cause brain malformations that result in the autistic phenotype. These alterations are very small and not identified by routine cytogenetics to which patients are normally submitted, which may result in an underestimation of the diagnosis. This study aimed at evaluating the 2q37 region in patients with autistic disorders. Twenty patients were studied utilizing the fluorescence in situ hybridization technique with a specific probe for 2q37. All of them were also studied by the GTC banding technique to identify possible chromosomal diseases. No alterations were observed in the 2q37 region of the individuals studied, and no patient presented chromosomal diseases. This result may be due to the small sample size analyzed. The introduction of routine analysis of the 2q37 region for patients with autistic disorders depends on further studies.
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Affiliation(s)
- A Barbosa-Gonçalves
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, SP, Brasil
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Vendrame-Goloni CB, Carvalho-Salles AB, Ruiz MA, Ricci Júnior O, Varella-Garcia M, Fett-Conte AC. Clinical outcome in chronic myeloid leukemia after allogeneic hematopoietic stem cell transplantation: the experience of the Bone Marrow Transplantation Unit of FUNFARME/BRAZIL using FISH. Genet Mol Res 2008; 7:417-23. [PMID: 18551408 DOI: 10.4238/vol7-2gmr396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Investigation of the efficacy of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in chronic myeloid leukemia patients is essential to predict prognosis and survival. In 20 patients treated at the Bone Marrow Transplantation Unit of São José do Rio Preto (São Paulo, Brazil), we used fluorescence in situ hybridization (FISH) to investigate the frequency of cells with BCR/ABL rearrangement at diagnosis and at distinct intervals after allo-HSCT until complete cytogenetic remission (CCR). We investigated the disease-free survival, overall survival in 3 years and transplant-related mortality rates, too. Bone marrow samples were collected at 1, 2, 3, 4, 6, 12, and 24 months after transplantation and additional intervals as necessary. Success rate of the FISH analyses was 100%. CCR was achieved in 75% of the patients, within on average of 3.9 months; 45% patients showed CCR within 60 days after HSCT. After 3 years of the allo-HSCT, overall survival rate was 60%, disease-free survival was 50% and the transplant-related mortality rate was 40%. The study demonstrated that the BCR-ABL FISH assay is useful for follow-up of chronic myeloid leukemia patients after HSCT and that the clinical outcome parameters in our patient cohort were similar to those described for other bone marrow transplantation units.
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Affiliation(s)
- C B Vendrame-Goloni
- Departamento de Biologia, Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, SP, Brasil.
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Affiliation(s)
- C T Giunco
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Campus de São José do Rio Preto, São José do Rio Preto, SP, Brasil
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Abstract
The present report describes the karyotypic findings in cells from a Wilms' tumor. The most consistent cytogenetic abnormalities detected consisted of translocations involving break and fusion of chromosomal telomeres and telomeric associations frequently affecting the terminus of the short arms of chromosomes 14 and 17.
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Affiliation(s)
- A C Fett-Conte
- Departamento de Ciências Básicas, Faculdade Regional de Medicina, UNESP, São José do Rio Preto, Brazil
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Abstract
We report on 4 new patients with acheiropodia ("the handless and footless families of Brazil"). This autosomal recessive condition involves all 4 limbs with a well-defined pattern of defects. Two of the patients described here had a small bone fragment in the upper stumps (Bohomoletz bone), an uncommon finding in acheiropodia.
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Affiliation(s)
- A C Fett-Conte
- Departamento de Biologia, UNESP, São José do Rio Preto, SP, Brazil
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Antõnio JR, Fett-Conte AC, Thomé JA, Silva AE, Pozetti EM, Nakaoshi PC, Toledo EC, Leser PG, Solé D, Naspitz CK. [Familial Bloom's syndrome associated with neuroblastoma]. Rev Paul Med 1990; 108:9-16. [PMID: 2218304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Bloom's syndrome (BS) is an autosomal recessive disease characterized by short stature, sensitivity to sunlight, and telangiectasic malar erythema. It is associated to chromosomal breakage, to primary combined immunodeficiency, and to a high incidence of neoplasias. The authors report the case of two siblings with BS and associated immunodeficiency. Both patients were male and 5 (A) and 4 (B) years old at the time of diagnosis. Chronic diarrhea, recurrent otitis media, purulent rhinitis, conjunctivitis and pyodermatitis were reported by patient A. Patient B was admitted with diagnosis of bilateral neuroblastoma and had the tumor resected. Later on, he presented with oral moniliasis, herpetic stomatitis, and skin abscesses. This patient did not have recurrent infections. Immunological evaluation showed normal serum levels of CH50, C3, and C4 for both patients. Serum IgG, IgA, IgM, and salivary IgA levels were: 455 mg/dl, 15mg/dl, 20mg/dl, 0.6mg/dl for A, and 400mg/dl, 15mg/dl, 20mg/dl, and 0.2mg/dl for B, respectively. Serum antipolio antibodies (1, 2, and 3) were normal, and low levels of isohemagglutinins were observed in both patients. T cells subset determination showed: patient A--OKT3 = 66%, OKT4 = 33%, OKT8 = 32%, and 4/8 ratio = 1.0; patient B--OKT3 = 70%, OKT4 = 32%, OKT8 = 34%, and 4/8 ratio = 1.0. In vitro cellular immune response to PHA was depressed only in patient B. Patients karyotype showed chromosomal breaks with sister chromatid exchanges. Neither patient had abnormal alphafetoprotein and carcinoembryonic antigen serum levels. The rarity of such associations justifies the presentation of the cases.
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Affiliation(s)
- J R Antõnio
- Departamento de Medicina Integrada da Fundação Faculdade Regional de Medicina de São José do Rio Preto
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