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Soler AM, Pedroso GA, Geraldo APM, Albuquerque DM, Costa FF, Santos MNN, Knijnenburg J, Harteveld CL, Sonati MF, da Luz JA. A novel α 0-thalassemia deletion in a Brazilian child with Hb H disease: -- Mococa. Int J Lab Hematol 2024. [PMID: 38566588 DOI: 10.1111/ijlh.14277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/07/2024] [Indexed: 04/04/2024]
Affiliation(s)
- A M Soler
- Laboratorio de Genética Molecular Humana, Departamento de Ciencias Biológicas, Centro Universitario Regional (CENUR) Litoral Norte. Universidad de la República (UdelaR), Salto, Uruguay
| | - G A Pedroso
- Departamento de Patologia Clínica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - A P M Geraldo
- Integrated Center for Oncohematological Research in Childhood (CIPOI), UNICAMP, Campinas, SP, Brazil
| | - D M Albuquerque
- Center for Hematology and Hemotherapy, UNICAMP, Campinas, SP, Brazil
| | - F F Costa
- Center for Hematology and Hemotherapy, UNICAMP, Campinas, SP, Brazil
| | - M N N Santos
- Departamento de Patologia Clínica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - J Knijnenburg
- Department of Human and Clinical Genetics, Hemoglobinopathy Expert Center, Leiden University Medical Center-LUMC, Leiden, The Netherlands
| | - C L Harteveld
- Department of Human and Clinical Genetics, Hemoglobinopathy Expert Center, Leiden University Medical Center-LUMC, Leiden, The Netherlands
| | - M F Sonati
- Departamento de Patologia Clínica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - J A da Luz
- Laboratorio de Genética Molecular Humana, Departamento de Ciencias Biológicas, Centro Universitario Regional (CENUR) Litoral Norte. Universidad de la República (UdelaR), Salto, Uruguay
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Barros-Costa M, Ferreira MD, Costa FF, Freitas DQ. Middle mesial root canals in mandibular molars: prevalence and correlation to anatomical aspects based on CBCT imaging. Dentomaxillofac Radiol 2022; 51:20220156. [PMID: 35926079 PMCID: PMC9717399 DOI: 10.1259/dmfr.20220156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/13/2022] [Accepted: 07/22/2022] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES To determine the prevalence of middle mesial root canal (MMC) in a Brazilian subpopulation, verify whether its presence is related to anatomical characteristics of the tooth, and propose a classification using cone-beam computed tomography (CBCT). METHODS CBCT scans of 284 patients were evaluated by 2 radiologists to determine the presence of the MMC in mandibular first and second molars. Subsequently, the mesiodistal and buccolingual measurements of the mesial roots were obtained; the measurements between the root canals, and from MMC to the mesiobuccal canal and to the mesiolingual canal were also obtained. The MMC was classified according to its relationship with mesiobuccal and mesiolingual canals. The data were analyzed using χ2 and Fisher's exact test, multiple logistic regression analysis, Student's t-test, κ and intraclass correlation coefficient (p < 0.05). RESULTS The intraexaminer agreements for the presence of the MMC and the measurements were considered almost perfect (0.953 and 0.999, respectively). Of 216 mandibular first molars, 11.1% had the MMC, and of 228 mandibular second molars, only 1.75% had the MMC. The presence was significant higher in the mandibular first molar (p < 0.0001). The buccolingual measurement and the measurement between mesiobuccal and mesiolingual canals were higher in teeth with MMC (p = 0.024 and p = 0.005, respectively). It was possible to classify the configuration of MCC into four types: independent (60.7%), confluent (14.3%), mesiolingual confluent (14.3%), and mesiobuccal confluent (10.7%). CONCLUSIONS The prevalence of MMC is more pronounced in mandibular first molars and anatomical measurements, such as greater measurement between mesiobuccal and mesiolingual canals, may alert clinicians to its presence. It was found four types of configurations of MMC.
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Affiliation(s)
- Matheus Barros-Costa
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Matheus Diniz Ferreira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Felipe Ferreira Costa
- Department of Oral Diagnosis, São Paulo Dental School, University of São Paulo (USP), São Paulo, Brazil
| | - Deborah Queiroz Freitas
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
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Alagbe AE, Pedroso GA, Justo-Junior AS, Costa E, Oliveira BB, Maia GAF, Albuquerque DM, Módena JLP, Costa FF, Santos MNND. ALTERED PLASMA CYTOKINE CONCENTRATIONS ARE ASSOCIATED WITH THE CLINICAL SEVERITY OF PATIENTS WITH COVID-19. Hematol Transfus Cell Ther 2022. [PMCID: PMC9576008 DOI: 10.1016/j.htct.2022.09.1130] [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: 11/25/2022] Open
Abstract
Introduction The novel Coronavirus (SARS-CoV-2), responsible for severe acute respiratory syndrome, has emerged as a threat to humans since December 2019, and the search for a better understanding of the pathophysiology of coronavirus disease 2019 (COVID-19) and its definitive treatment is still in progress. Objective To evaluate the plasma pro- and anti-inflammatory cytokines in COVID-19 patients and their associations with the disease severity and outcome. Methods Reverse-Transcriptase Polymerase Chain Reaction (RT-PCR)-confirmed COVID-19 unvaccinated patients at the Hospital de Clínicas (HC), UNICAMP, Campinas, SP, were enrolled. Clinical and laboratory data were extracted from the medical records, and the plasma cytokines levels were quantified using LUMINEX and ELISA. Results There were 154 COVID-19 patients (99 survivors and 55 non-survivors) with male:female of 1.4:1, and a median age of 60 years. The non-survivors were older than survivors (65 vs. 55 years, p < 0.0001); and coronary artery disease and autoimmunity, disease severity, and oxygen therapy, intensive care, and intubation were associated with mortality. Non-survivors had higher leukocyte and neutrophil counts, and RDW and lower lymphocyte count at diagnosis. Non-survivors had higher levels of pro-inflammatory (TNF-α, IL-6, IFN-γ, CCL3, IL-17/IL-17A, IL-8, G-CSF, CCL2/MCP-1) and anti-inflammatory (IL-1ra and IL-27) cytokines, but lower TGF-β levels than the survivors. TNF-α levels were positively correlated with all studied cytokines except TGF-β, while TGF-β levels were negatively correlated with TNF-α, IL-6, CCL3, G-CSF, and IL-27. IL-27 levels were significantly correlated with all the cytokines except IL-37 and IL-17E. More than half (55.2%) of our patients had severe COVID-19, 18.8% had moderate, 16.2% had critical, 5.2% had mild, and 4.5% were asymptomatic. Majority of the patients (68.2%) required ICU care and had higher TNF-α, IL-6, IL-8, IL-17, CCL3, CCL2, IL-1ra, and IL-27 than others. 59.7% of the patients required endotracheal intubation and had higher TNF-α, IL-6, IL-8, CCL3, CCL2, and IL-1ra than those who did not have intubation. TNF-α, IL-6, and IL-8 had the highest Area Under the Receiver Operating Characteristics (AUROC) curve, sensitivity, and specificity for predicting mortality in these COVID-19 patients. Discussion and conclusion The altered levels of pro- and anti-inflammatory cytokines support the role of SARS-CoV-2 in inducing cytokine storm, and higher concentrations seen in the deceased patients meant a more severe storm. Also, the increased leukocytes and neutrophils in our patients could have led to the release of reactive oxygen species, and end-organ damage, thus leading to poor outcomes. This study showed that the levels of these cytokines could be used as markers of mortality in COVID-19. It is possible to suggest that TNF, IL-6, and IL-8 levels at diagnosis could be efficient predictors of fatal outcomes in COVID-19 patients. If properly measured at diagnosis, these markers could be useful for triaging and predicting the outcome of COVID-19, thus guiding the treatment of the COVID-19. Funding CNPq (#190374/2017-9), CAPES, FAPESP and FAEPEX (#338619).
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Affiliation(s)
- AE Alagbe
- Departamento de Patologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - GA Pedroso
- Departamento de Patologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - AS Justo-Junior
- Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Laboratório Nacional de Biociências (LNBio), Campinas, SP, Brazil
| | - E Costa
- Laboratório de Hematologia e Hemoterapia, Divisão de Patologia Clínica, Hospital das Clínicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - BB Oliveira
- Laboratório de Hematologia e Hemoterapia, Divisão de Patologia Clínica, Hospital das Clínicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - GAF Maia
- Laboratório de Hematologia e Hemoterapia, Divisão de Patologia Clínica, Hospital das Clínicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - DM Albuquerque
- Centro de Hematologia e Hemoterapia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - JLP Módena
- Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - FF Costa
- Centro de Hematologia e Hemoterapia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - MNND Santos
- Departamento de Patologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
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Pedroso GA, Soler AM, Geraldo APM, Oliveira BB, Costa FF, Santos MNN, Harteveld CL, Jorge SE, Sonati MF, Luz J. DELEÇÃO TALASSÊMICA ALFA0 NOVA (–MOCOCA) DETECTADA EM CRIANÇA COM DOENÇA DA HB H (-A3.7/–MOCOCA). Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Piellusch BF, Rodriguez-Osorio N, Albuquerque DM, Domingos IF, Pereira-Martins DA, Araújo AS, Bezerra MAC, Costa FF, Sonati MF, Santos MNND. PERFIL DE EXPRESSÃO DE MICRORNAS E DO FATOR DE CRESCIMENTO ENDOTELIAL VASCULAR A EM PACIENTES COM ANEMIA FALCIFORME COM E SEM ÚLCERA DE PERNA. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Borges MD, Albuquerque DM, Lanaro C, Pagnano KBB, Costa RS, Costa FF. MONÓCITOS E HEMÁCIAS DE PACIENTES COM POLICITEMIA VERA CONTRIBUEM PARA AUMENTO DA ERITROFAGOCITOSE E DA EXPRESSÃO DE MOLÉCULAS ENVOLVIDAS COM O METABOLISMO DO FERRO. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Costa FF, Montalembert M, Anderson A, Jastaniah W, Kunz JB, Odame I, Beaubrun A, Montealegre-Golcher F, Lartey B, Inusa BPD. PERSPECTIVAS DOS MÉDICOS BRASILEIROS SOBRE A DOENÇA FALCIFORME E SEU TRATAMENTO: RESULTADOS DA PESQUISA DE CONHECIMENTO, PERSPECTIVAS E EXPERIÊNCIAS EM SAÚDE DA DOENÇA FALCIFORME (SICKLE CELL HEALTH AWARENESS, PERSPECTIVES AND EXPERIENCES, SHAPE). Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Silva PJF, Silva CM, Campos BM, Campos PM, Medina SS, Lamonica A, Cendes F, Costa FF, Saad STO, Benites BD. AVALIAÇÃO COGNITIVA DE PACIENTES ADULTOS COM DOENÇAS FALCIFORMES: O IMPACTO DAS CONDIÇÕES SOCIOECONÔMICAS E CORRELAÇÕES COM ACHADOS DE NEUROIMAGEM. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Silva FH, Splendore CO, Calmasini FB, Costa FF. TRATAMENTO COM O RESVERATROL REVERTE O FENÓTIPO DE PRIAPISMO EM CAMUNDONGOS TRANSGÊNICOS PARA ANEMIA FALCIFORME. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.1116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Oliveira MA, Albuquerque DM, Lanaro C, Costa FF. ASPECTOS PRÉ-CLÍNICOS DE EDIÇÃO GÊNICA PARA O TRATAMENTO DAS DOENÇAS FALCIFORMES NO BRASIL. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Costa FF, Odame I, Anderson A, Inusa BPD, Jastaniah W, Kunz JB, Soares MZ, Montealegre-Golcher F, Lartey B, Montalembert M. IMPACTO DA DOENÇA FALCIFORME NA QUALIDADE DE VIDA DE PACIENTES BRASILEIROS E SEUS CUIDADORES: ACHADOS DA PESQUISA DE PERCEPÇÃO, PERSPECTIVAS E EXPERIÊNCIAS EM SAÚDE FALCIFORME. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Oliveira BB, Pedroso GA, Santos MNND, Costa FF, Soler AM, Luz J, Harteveld CL, Carlos AM, Souza HM, Jorge SE. TALASSEMIA ALFA RESULTANTE DE DELEÇÃO DO ELEMENTO REGULATÓRIO DO CLUSTER α EM DOIS INDIVÍDUOS NÃO RELACIONADOS. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Ferreira MD, Barros-Costa M, Costa FF, Freitas DQ. The prevalence and characteristics of external cervical resorption based on cone-beam computed tomographic imaging: a cross-sectional study. Restor Dent Endod 2022; 47:e39. [DOI: 10.5395/rde.2022.47.e39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/12/2022] [Accepted: 05/10/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Matheus Diniz Ferreira
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Matheus Barros-Costa
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Felipe Ferreira Costa
- Department of Oral Diagnosis, São Paulo Dental School, University of São Paulo (USP), São Paulo, Brazil
| | - Deborah Queiroz Freitas
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil
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Borges MD, Costa RS, Albuquerque DM, Lanaro C, Fertrin KY, Costa FF. MONÓCITOS DE PACIENTES COM POLICITEMIA VERA ESTÃO ENVOLVIDOS NA ERITROFAGOCITOSE. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Albuquerque FP, Sousa IG, Souza BB, Maués JHS, Lanaro C, Albuquerque DM, Costa FF. MECANISMOS MOLECULARES ENVOLVIDOS NO AUMENTO DA EXPRESSÃO DE HBF IN VITRO EM UMA SUBPOPULAÇÃO DE CÉLULAS CD34+ DE PACIENTES COM β-TALASSEMIA MAIOR. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Pereira PS, Calmasini FB, Costa FF, Silva FH. TRATAMENTO COM A HAPTOGLOBINA REVERTE ALTERAÇÕES NA FUNÇÃO ERÉTIL ASSOCIADA AO PRIAPISMO EM CAMUNDONGOS TRANSGÊNICOS PARA ANEMIA FALCIFORME. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ferreira WA, Chweih H, Lanaro C, Almeida CB, Brito PL, Gotardo EMF, Torres L, Miguel LI, Franco-Penteado CF, Leonardo FC, Garcia F, Saad STO, Frenette PS, Brockschnieder D, Costa FF, Stasch JP, Sandner P, Conran N. Beneficial Effects of Soluble Guanylyl Cyclase Stimulation and Activation in Sickle Cell Disease Are Amplified by Hydroxyurea: In Vitro and In Vivo Studies. J Pharmacol Exp Ther 2020; 374:469-478. [PMID: 32631869 PMCID: PMC7445859 DOI: 10.1124/jpet.119.264606] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/26/2020] [Indexed: 12/13/2022] Open
Abstract
The complex pathophysiology of sickle cell anemia (SCA) involves intravascular hemolytic processes and recurrent vaso-occlusion, driven by chronic vascular inflammation, which result in the disease’s severe clinical complications, including recurrent painful vaso-occlusive episodes. Hydroxyurea, the only drug frequently used for SCA therapy, is a cytostatic agent, although it appears to exert nitric oxide/soluble guanylyl cyclase (sGC) modulating activity. As new drugs that can complement or replace the use of hydroxyurea are sought to further reduce vaso-occlusive episode frequency in SCA, we investigated the effects of the sGC agonists BAY 60-2770 (sGC activator) and BAY 41-2272 (sGC stimulator) in the presence or absence of hydroxyurea on SCA vaso-occlusive mechanisms and cell recruitment both ex vivo and in vivo. These agents significantly reduced stimulated human SCA neutrophil adhesive properties ex vivo in association with the inhibition of surface β2-integrin activation. A single administration of BAY 60-2770 or BAY 41-2272 decreased tumor necrosis factor cytokine–induced leukocyte recruitment in a mouse model of SCA vaso-occlusion. Importantly, the in vivo actions of both agonists were significantly potentiated by the coadministration of hydroxyurea. Erythroid cell fetal hemoglobin (HbF) elevation is also a major goal for SCA therapy. BAY 41-2272 but not BAY 60-2770 at the concentrations employed significantly induced γ-globin gene transcription in association with HbF production in cultured erythroleukemic cells. In conclusion, sGC agonist drugs could represent a promising approach as therapy for SCA, for use either as stand-alone treatments or in combination with hydroxyurea.
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Affiliation(s)
- W A Ferreira
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - H Chweih
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C Lanaro
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C B Almeida
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P L Brito
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - E M F Gotardo
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - L Torres
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - L I Miguel
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C F Franco-Penteado
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F C Leonardo
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F Garcia
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - S T O Saad
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P S Frenette
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - D Brockschnieder
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F F Costa
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - J P Stasch
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P Sandner
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - N Conran
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
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Svidnicki MCCM, Zanetta GK, Congrains-Castillo A, Costa FF, Saad STO. Targeted next-generation sequencing identified novel mutations associated with hereditary anemias in Brazil. Ann Hematol 2020; 99:955-962. [PMID: 32266426 PMCID: PMC7241966 DOI: 10.1007/s00277-020-03986-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 03/01/2020] [Indexed: 01/19/2023]
Abstract
Hereditary anemias are a group of heterogeneous disorders including hemolytic anemias and hyporegenerative anemias, as congenital dyserythropoietic anemia (CDA). Causative mutations occur in a wide range of genes leading to deficiencies in red cell production, structure, or function. The genetic screening of the main genes is important for timely diagnosis, since routine laboratory tests fail in a percentage of the cases, appropriate treatment decisions, and genetic counseling purposes. A conventional gene-by-gene sequencing approach is expensive and highly time-consuming, due to the genetic complexity of these diseases. To overcome this problem, we customized a targeted sequencing panel covering 35 genes previously associated to red cell disorders. We analyzed 36 patients, and potentially pathogenic variants were identified in 26 cases (72%). Twenty variants were novel. Remarkably, mutations in the SPTB gene (β-spectrin) were found in 34.6% of the patients with hereditary spherocytosis (HS), suggesting that SPTB is a major HS gene in the Southeast of Brazil. We also identified two cases with dominant HS presenting null mutations in trans with α-LELY in SPTA1 gene. This is the first comprehensive genetic analysis for hereditary anemias in the Brazilian population, contributing to a better understanding of the genetic basis and phenotypic consequences of these rare conditions in our population.
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Affiliation(s)
- M C C M Svidnicki
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas, (HEMOCENTRO/UNICAMP), Campinas, SP, Brazil. Rua Carlos Chagas, 480, Campinas, SP, 13083-878, Brazil.
| | - G K Zanetta
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas, (HEMOCENTRO/UNICAMP), Campinas, SP, Brazil. Rua Carlos Chagas, 480, Campinas, SP, 13083-878, Brazil
| | - A Congrains-Castillo
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas, (HEMOCENTRO/UNICAMP), Campinas, SP, Brazil. Rua Carlos Chagas, 480, Campinas, SP, 13083-878, Brazil
| | - F F Costa
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas, (HEMOCENTRO/UNICAMP), Campinas, SP, Brazil. Rua Carlos Chagas, 480, Campinas, SP, 13083-878, Brazil
| | - S T O Saad
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas, (HEMOCENTRO/UNICAMP), Campinas, SP, Brazil. Rua Carlos Chagas, 480, Campinas, SP, 13083-878, Brazil
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Chenou F, Albuquerque DM, Leonardo DP, Domingos IF, Bezerra MAC, Araújo AS, Blotta MHSL, Costa FF, Sonati MF, Paula EV, Santos MNN. Endothelial Nitric Oxide Synthase (eNOS) Gene Polymorphisms and Markers of Hemolysis, Inflammation and Endothelial Dysfunction in Brazilian Sickle Cell Anemia Patients. Biochem Genet 2020; 58:580-594. [PMID: 32277314 DOI: 10.1007/s10528-020-09959-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/13/2020] [Indexed: 11/30/2022]
Abstract
The impaired bioavailability of endogenous nitric oxide (NO) in sickle cell anemia (SCA) may be influenced by polymorphisms in the endothelial nitric oxide synthase gene (eNOS). We compared allelic/genotypic frequencies of the eNOS polymorphisms T-786C, VNTR4a/b and G894T between 89 adult SCA patients and 100 healthy controls, and investigated the relationship between these SNPs and markers of hemolysis [lactate dehydrogenase (LDH), indirect bilirubin (IB) and reticulocyte counts], inflammation [interleukins IL-1β, IL-6, IL-8, Tumor Necrosis Factor (TNF-α) and C-reactive protein (CRP)] and endothelial dysfunction (ED) [soluble vascular cell adhesion molecule-1 (sVCAM-1), soluble intercellular adhesion molecule-1 (sICAM-1), soluble L-selectin (sL-selectin), von Willebrand Factor (vWF) antigen and D-dimers] in the patients. The frequencies of the mutant -786C allele and -786C/C genotype were significantly higher in patients (p = 0.02 and p = 0.04, respectively) but not significantly correlated with the markers. For VNTR4a/b and G894T, the allelic/genotypic frequencies did not statistically differ between patient and control groups. Patients carrying the 4a allele and those with the 894G/G genotype showed a significant decrease in IB (p = 0.02 and p = 0.04, respectively), and only patients with the 4a allele exhibited reduced IL-1β (p = 0.01). The correlation profiles between markers of inflammation and ED significantly differed between patients carrying the mutant alleles and those with wild-type genotypes. This appears to be the first report on the relationship between eNOS gene polymorphisms and markers of hemolysis, inflammation and ED in Brazilian SCA patients. Our results indicate that the SNPs analyzed may influence the phenotypic variability of these patients.
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Affiliation(s)
- F Chenou
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - D M Albuquerque
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - D P Leonardo
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - I F Domingos
- Department of Genetics, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - M A C Bezerra
- Department of Genetics, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - A S Araújo
- Hematology and Hemotherapy Foundation of Pernambuco (HEMOPE), Recife, Pernambuco, Brazil
| | - M H S L Blotta
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - F F Costa
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - M F Sonati
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - E V Paula
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - M N N Santos
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil.
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Olatunya OS, Albuquerque DM, Adekile AD, Costa FF. Evaluation of sociodemographic, clinical, and laboratory markers of sickle leg ulcers among young nigerians at a tertiary health institution. Niger J Clin Pract 2018; 21:882-887. [PMID: 29984720 DOI: 10.4103/njcp.njcp_4_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Sickle leg ulcer (SLU) is a chronic and debilitating complication of sickle cell disease (SCD) associated with huge physical and psychosocial discomfort. The occurrence of SLU has remained steady despite successful preventive strategies and advances in SCD care. Although multifactorial factors have been implicated in SLU, these are not fully understood, and data on how these relate to young Nigerian SCD patients are scanty. Aims This study aims to evaluate the sociodemographic, clinical, and laboratory markers of SLU in a young Nigerian SCD cohort. Patients and Methods This study involved 109 young SCD patients and 67 healthy peers. The sociodemographic and laboratory parameters of the participants were examined in addition to the evaluation of the SCD cohort for SLU. Results Only the HbSS patients had SLU. This was found in six of them giving a prevalence of 5.9% (6/101). Their median age was 17, range 14-21 years. There was a preceding history of trauma in 4 (66.7%), and this included a case of traditional scarifications for local therapeutic purposes. Two of the three (66.7%) males with SLU also had priapism (P = 0.0132). Patients with SLU were older, had less frequent bone pain crises, and significantly belonged to the low socioeconomic class (P < 0.05). Although patients with SLU had relatively higher lactate dehydrogenase, platelet count, aspartate transaminase, bilirubin, white blood cell, and lower Hb concentration and HbF, these did not attain statistical significance (P > 0.05). Conclusion This study confirms that SLU is common among young SCD patients with HbSS genotype, low socioeconomic background, and older age. It also suggests that SLU could be more related to hemolysis-associated SCD phenotypes among the patients.
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Affiliation(s)
- O S Olatunya
- Hematology and Hemotherapy Center, University of Campinas, São Paulo, Brazil; Department of Paediatrics, College of Medicine, Ekiti State University, Ekiti State, Nigeria
| | - D M Albuquerque
- Hematology and Hemotherapy Center, University of Campinas, São Paulo, Brazil
| | - A D Adekile
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | - F F Costa
- Hematology and Hemotherapy Center, University of Campinas, São Paulo, Brazil
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Arruda VR, von Zuben PM, Soares MCP, Menezes R, Annichino-Bizzacchi JM, Costa FF. Very Low Incidence of Arg506 → Gin Mutation in the Factor V Gene among the Amazonian Indians and the Brazilian Black Population. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1650382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- V R Arruda
- Hematology-Hemotherapy Center, State University of Campinas, UNICAMP, Campinas, SP, Brazil
| | - P M von Zuben
- Hematology-Hemotherapy Center, State University of Campinas, UNICAMP, Campinas, SP, Brazil
| | | | - R Menezes
- Evandro Chagas Institute, Belem, PA, Brazil
| | | | - F F Costa
- Hematology-Hemotherapy Center, State University of Campinas, UNICAMP, Campinas, SP, Brazil
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Ferreira RD, Mota NO, Pedroso GA, Kimura EM, Geraldo APM, Santos MNN, Costa FF, Sonati MF. First report of εγδβ 0 -thalassemia in a Brazilian family. Int J Lab Hematol 2018; 40:e96-e98. [PMID: 29851275 DOI: 10.1111/ijlh.12863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- R D Ferreira
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - N O Mota
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - G A Pedroso
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - E M Kimura
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - A P M Geraldo
- Integrated Center for Pediatric Hematology/Oncology Research (CIPOI), School of Medical Sciences, State University of Campinas- UNICAMP, Campinas, SP, Brazil
| | - M N N Santos
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - F F Costa
- Hematology and Hemotherapy Center, UNICAMP, Campinas, SP, Brazil
| | - M F Sonati
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
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Costa FF, Pinheiro LR, Umetsubo OS, Santos Júnior OD, Gaia BF, Cavalcanti MGP. Influence of Cone-beam Computed Tomographic Scan Mode for Detection of Horizontal Root Fracture. J Endod 2014; 40:1472-6. [DOI: 10.1016/j.joen.2014.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/13/2014] [Accepted: 03/01/2014] [Indexed: 11/28/2022]
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Gaia BF, Pinheiro LR, Umetsubo OS, Santos O, Costa FF, Cavalcanti MGP. Accuracy and reliability of linear measurements using 3-dimensional computed tomographic imaging software for Le Fort I Osteotomy. Br J Oral Maxillofac Surg 2014; 52:258-63. [PMID: 24456609 DOI: 10.1016/j.bjoms.2013.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 12/23/2013] [Indexed: 10/25/2022]
Abstract
Our purpose was to compare the accuracy and reliability of linear measurements for Le Fort I osteotomy using volume rendering software. We studied 11 dried skulls and used cone-beam computed tomography (CT) to generate 3-dimensional images. Linear measurements were based on craniometric anatomical landmarks that were predefined as specifically used for Le Fort I osteotomy, and identified twice each by 2 radiologists, independently, using Dolphin imaging version 11.5.04.35. A third examiner then made physical measurements using digital calipers. There was a significant difference between Dolphin imaging and the gold standard, particularly in the pterygoid process. The largest difference was 1.85mm (LLpPtg L). The mean differences between the physical and the 3-dimensional linear measurements ranged from -0.01 to 1.12mm for examiner 1, and 0 to 1.85mm for examiner 2. Interexaminer analysis ranged from 0.51 to 0.93. Intraexaminer correlation coefficients ranged from 0.81 to 0.96 and 0.57 to 0.92, for examiners 1 and 2, respectively. We conclude that the Dolphin imaging should be used sparingly during Le Fort I osteotomy.
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Affiliation(s)
- Bruno Felipe Gaia
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Radiology, Av. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil.
| | - Lucas Rodrigues Pinheiro
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Radiology, Av. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil
| | - Otávio Shoite Umetsubo
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Radiology, Av. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil
| | - Oseas Santos
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Radiology, Av. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil
| | - Felipe Ferreira Costa
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Radiology, Av. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil
| | - Marcelo Gusmão Paraíso Cavalcanti
- School of Dentistry, University of São Paulo, College of Dentistry, Department of Stomatology, A. Prof. Lineu Prestes, 2227, CEP 05508-900 São Paulo, SP, Brazil.
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Gaia BF, Pinheiro LR, Umetsubo OS, Costa FF, Cavalcanti MGP. Comparison of precision and accuracy of linear measurements performed by two different imaging software programs and obtained from 3D-CBCT images for Le Fort I osteotomy. Dentomaxillofac Radiol 2013; 42:20120178. [PMID: 23520394 DOI: 10.1259/dmfr.20120178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The purpose of this study was to compare the precision and accuracy of linear measurements for Le Fort I osteotomy performed by two different imaging software programs and obtained from three-dimensional cone beam CT (3D-CBCT) images. METHODS The study population consisted of 11 dried skulls submitted to CBCT, which generated 3D images. Linear measurements were based on craniometric anatomical landmarks pre-defined by the authors as specifically used for Le Fort I osteotomy and were identified by two radiologists twice each, independently, using Vitrea 3.8.1 (Vital Images Inc., Plymouth, MN) and open-source digital imaging communication in medicine viewer OsiriX 1.2 64-bit (Pixmeo, Geneva, Switzerland). Subsequently, a third examiner made physical measurements using a digital caliper (167 series; Mitutoyo Sul Americana Ltd, Suzano, SP, Brazil). RESULTS The results demonstrated a statistically significant difference between OsiriX and the gold standard, especially in the pterygoid process (TPtg L = 0.019, LLpPtg R = 0.016 and LLpPtg L = 0.012). Vitrea showed no statistical difference in comparison with the gold standard, and showed a high level of accuracy in all the measurements performed. The major difference found was 0.42 mm (LLpPtg R). Interexaminer analysis ranged from 0.90 to 0.97 using Vitrea and from 0.8 to 0.97 using OsiriX. Intraexaminer correlation coefficient ranged from 0.90 to 0.98 and from 0.84 to 0.98 for Examiners 1 and 2, respectively, using Vitrea and from 0.93 to 0.99 for Examiner 1 and from 0.64 to 0.96 for Examiner 2 using OsiriX. CONCLUSION Vitrea may be considered as precise and accurate, insofar as it was able to perform all the 3D linear measurements. On the other hand, linear measurements performed using OsiriX were not successful in producing accurate linear measurements for Le Fort I osteotomy.
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Affiliation(s)
- B F Gaia
- Department of Stomatology, University of Sao Paulo, Sao Paulo, Brazil
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Umetsubo OS, Gaia BF, Costa FF, Cavalcanti MGP. Detection of simulated incipient furcation involvement by CBCT: an in vitro study using pig mandibles. Braz Oral Res 2013; 26:341-7. [PMID: 22790499 DOI: 10.1590/s1806-83242012000400010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 04/29/2012] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to test the reproducibility, sensitivity, and specificity of cone-beam computed tomography (CBCT) in detecting incipient furcation involvement. Fifteen macerated pig mandibles, with intact second molar teeth and preserved adjacent cortical areas, were used. Simulated lesions were created in the furcation region of these teeth by applying 70% perchloric acid in up to four possible buccal/lingual sites in the right/left sides of each mandible. The mandibles were then submitted to a CBCT scan. Two blinded and calibrated experienced oral and maxillofacial radiologists interpreted the exams. Furcation involvement was also assessed in the regions without simulated lesions. CBCT showed high levels of accuracy, ranging from 78% to 88%. The variations in Kappa values for intra- and inter-observer agreement (0.41-0.59) were considered moderate. CBCT can be considered a reliable and accurate method for detecting incipient furcation involvement.
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Chaves DM, Costa FF, Matuguma S, Lera Dos Santos ME, de Moura EG, Maluf Filho F, Sakai P. Splenic artery pseudoaneurysm treated with thrombin injection guided by endoscopic ultrasound. Endoscopy 2012; 44 Suppl 2 UCTN:E99-100. [PMID: 22473579 DOI: 10.1055/s-0030-1256740] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- D M Chaves
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, São Paulo University Medical School, São Paulo, Brazil.
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Machado-Neto JA, Traina F, De Melo Campos P, Andreoli-Risso MF, Costa FF, Olalla Saad ST. Lack of association between MDM2 SNP309 and TP53 Arg72Pro polymorphisms with clinical outcomes in myelodysplastic syndrome. Neoplasma 2012; 59:530-5. [PMID: 22668018 DOI: 10.4149/neo_2012_068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
MDM2/p53 pathway plays an important role in the control of apoptotic and proliferation mechanisms, and alterations in this pathway have been described in myelodysplastic syndromes (MDS). We investigated the frequency of MDM2 SNP309, TP53 Arg72Pro polymorphisms in de novo MDS and the association of these polymorphisms with clinical characteristics. Our results showed that the frequencies of genotypes for MDM2 SNP309 and TP53 Arg72Pro did not differ between MDS and healthy controls and that these polymorphisms were not associated with clinical and laboratory parameters, disease progression and overall survival, suggesting that MDM2 and TP53 polymorphisms are not involved in risk for MDS, or in the clinical and laboratory characteristics of the disease.
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Affiliation(s)
- J A Machado-Neto
- Hematology and Hemotherapy Center - University of Campinas / Hemocentro-Unicamp, Instituto Nacional de Ciencia e Tecnologia do Sangue, Campinas, Sao Paulo, Brazil
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Colella MP, De Paula EV, Conran N, Machado-Neto JA, Annicchino-Bizzacchi JM, Costa FF, Saad STO, Traina F. Hydroxyurea is associated with reductions in hypercoagulability markers in sickle cell anemia. J Thromb Haemost 2012; 10:1967-70. [PMID: 22817333 DOI: 10.1111/j.1538-7836.2012.04861.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Da Luz J, López P, Kimura EM, Albuquerque DM, Costa FF, Sans M, Sonati MF. A new β⁰-thalassemia frameshift mutation [β 48 (-T)] in a Uruguayan family. Int J Lab Hematol 2012; 35:111-4. [PMID: 22898041 DOI: 10.1111/j.1751-553x.2012.01462.x] [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] [Received: 05/30/2012] [Accepted: 06/21/2012] [Indexed: 11/29/2022]
Abstract
We describe here a new frameshift mutation of β-thalassemia in a Uruguayan family with Italian ancestry [β48 (-T); HBB:c.146delT]. This frameshift results in formation of premature stop codon (TGA) 40 bp downstream and in a short unstable product that is degraded in the cell.
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Affiliation(s)
- J Da Luz
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
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Costa FF, Gaia BF, Umetsubo OS, Pinheiro LR, Tortamano IP, Cavalcanti MGP. Use of Large-volume Cone-Beam Computed Tomography in Identification and Localization of Horizontal Root Fracture in the Presence and Absence of Intracanal Metallic Post. J Endod 2012; 38:856-9. [DOI: 10.1016/j.joen.2012.03.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 02/25/2012] [Accepted: 03/11/2012] [Indexed: 10/28/2022]
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Leonardo FC, da Cunha AF, da Silva MJ, Carazzolle MF, Costa-Leonardo AM, Costa FF, Pereira GA. Analysis of the workers head transcriptome of the Asian subterranean termite, Coptotermes gestroi. Bull Entomol Res 2011; 101:383-91. [PMID: 21205397 DOI: 10.1017/s0007485310000556] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The lower termite, Coptotermes gestroi (Isoptera: Rhinotermitidae), is originally from Southeast Asia and has become a pest in Brazil. The main goal of this study was to survey C. gestroi transcriptome composition. To accomplish this, we sequenced and analyzed 3003 expressed sequence tags (ESTs) isolated from libraries of worker heads. After assembly, 695 uniESTs were obtained from which 349 have similarity with known sequences. Comparison with insect genomes demonstrated similarity, primarily with genes from Apis mellifera (28%), Tribolium castaneum (28%) and Aedes aegypti (10%). Notably, we identified two endogenous cellulases in the sequences, which may be of interest for biotechnological applications. The results presented in this work represent the first genomic study of the Asian subterranean termite, Coptotermes gestroi.
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Affiliation(s)
- F C Leonardo
- Laboratório de Genômica e Expressão, Departamento de Genética Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, São Paulo, Brazil
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Dominical VM, Bértolo MB, Almeida CB, Garrido VT, Miguel LI, Costa FF, Conran N. Neutrophils of rheumatoid arthritis patients on anti-TNF-α therapy and in disease remission present reduced adhesive functions in association with decreased circulating neutrophil-attractant chemokine levels. Scand J Immunol 2011; 73:309-18. [PMID: 21208248 DOI: 10.1111/j.1365-3083.2011.02503.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Neutrophils participate in the initiation and progression of rheumatoid arthritis (RA) although the exact mechanisms responsible for neutrophil accumulation in rheumatoid joints are not understood. This study compared the adhesive and chemotactic functions of neutrophils from RA patients in activity (DAS28 > 3.2) and not in activity (DAS28 < 2.6) and observed the effects of different treatment approaches on these functions. Neutrophils were isolated from healthy controls (CON), and patients with active or inactive RA in use of therapy not specific for RA (NSAIDs), in use of DMARDs and in use of anti-TNF-α therapy. Adhesive and chemotactic properties were evaluated using in vitro assays; adhesion molecule expression was assessed by flow cytometry and real-time PCR and circulating chemokines were determined by ELISA. No significant alterations in the adhesive and chemotactic properties of neutrophils from active RA were observed when compared to CON neutrophils, independently of treatment regimen. In contrast, neutrophils from RA patients in disease remission presented reduced adhesive properties and a lower spontaneous chemotactic capacity, in association with decreased adhesion molecule expression, although profiles of alterations differed for those patients on DMARDs and those on anti-TNF-α therapy. Circulating levels of the major neutrophilic chemokines, IL-8 and epithelial neutrophil activating peptide-78, were also significantly decreased in those patients demonstrating a clinical response. Remission of RA appears to be associated with ameliorations in aspects important for neutrophil adhesion and chemotaxis; whether these alterations contribute to decrease neutrophil migration to the synovial fluid, with consequent improvements in the clinical manifestations of RA, remains to be determined.
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Affiliation(s)
- V M Dominical
- Hematology and Hemotherapy Center, INCTS, School of Medicine, University of Campinas-UNICAMP, Campinas, Sao Paulo, Brazil
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Mezzacappa MA, Facchini FP, Pinto AC, Cassone AEL, Souza DS, Bezerra MAC, Albuquerque DM, Saad STO, Costa FF. Clinical and genetic risk factors for moderate hyperbilirubinemia in Brazilian newborn infants. J Perinatol 2010; 30:819-26. [PMID: 20376058 DOI: 10.1038/jp.2010.48] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To identify clinical and genetic risk factors for moderate hyperbilirubinemia during the first week of life. STUDY DESIGN Using univariate and multivariate multiple regression analyses, the RR for clinical factors, the African variant of glucose-6-phosphate dehydrogenase (G6PD) deficiency (G202A/A376G), and (TA)(n) UGT1A1 polymorphisms were established in a cohort of 608 Brazilian newborn infants. Hyperbilirubinemia was monitored until 134.5 ± 49.8 h of life (IQR, 111.0 to 156.7). The dependent variable was total bilirubinemia (TB) ≥12.9 mg per 100 ml estimated by transcutaneous or plasma bilirubin measurements. RESULT The African variant of G6PD deficiency and (TA)(7)/(TA)(7) and (TA)(7)/(TA)(8) polymorphisms present in 6.1 and 12.0% of newborns, respectively, were not risk factors for moderate hyperbilirubinemia. Coexpression of G6DP deficiency and UGT1A1 polymorphisms occurred in 0.49% of the subjects. Independent clinical predictors for TB≥ 12.9 mg per 100 ml were gestational age <38 weeks and reference curve percentiles >P40th. CONCLUSION In this study, G6PD deficiency and UGT1A1 gene promoter polymorphisms were not risk factors for moderate hyperbilirubinemia. Genetic factors may vary considerably in importance among different populations.
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Affiliation(s)
- M A Mezzacappa
- Division of Neonatology, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
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da Cunha AF, Brugnerotto AF, Duarte AS, Lanaro C, Costa GGL, Saad STO, Costa FF. Global gene expression reveals a set of new genes involved in the modification of cells during erythroid differentiation. Cell Prolif 2010; 43:297-309. [PMID: 20546246 DOI: 10.1111/j.1365-2184.2010.00679.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES Erythroid differentiation is a dynamic process in which a pluripotent stem cell undergoes a series of developmental changes that commit it to a specific lineage. These alterations involve changes in gene expression profiles. In this study, gene expression profiles during differentiation of human erythroid cells of a normal blood donor were evaluated using SAGE. MATERIALS AND METHODS Global gene expression was evaluated in cells collected immediately before addition of erythropoietin (0 h) and 192 and 336 h after addition of this hormone. Real-time PCR was used to evaluate activation of differentially expressed genes. RESULTS The data indicate that global aspects of the transcriptome were similar during differentiation of the majority of the genes and that a relatively small set of genes is probably involved in modification of erythroid cells during differentiation. We have identified 93 differentially expressed genes during erythroid development, and expression of some of these was confirmed by qPCR. Various genes including EYA3, ERH, HES6, TIMELESS and TRIB3 were found to be homologous to those of Drosophila melanogaster and here are described for the first time during erythroid development. An important and unique carboxypeptidase inhibitor described in mammalians, LXN, was also identified. CONCLUSIONS The results of this study amplify previously published data and may contribute to comprehension of erythroid differentiation and identification of new target genes involved in some erythroid concerning diseases.
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Affiliation(s)
- A F da Cunha
- Departamento de Genética e Evolução, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil.
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Souza DS, Spencer DM, Salles TSI, Salomão MA, Payen E, Beuzard Y, Carvalho HF, Costa FF, Saad STO. Death switch for gene therapy: application to erythropoietin transgene expression. Braz J Med Biol Res 2010; 43:634-44. [PMID: 20499015 DOI: 10.1590/s0100-879x2010007500046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Accepted: 04/30/2010] [Indexed: 11/22/2022] Open
Abstract
The effectiveness of the caspase-9-based artificial "death switch" as a safety measure for gene therapy based on the erythropoietin (Epo) hormone was tested in vitro and in vivo using the chemical inducer of dimerization, AP20187. Plasmids encoding the dimeric murine Epo, the tetracycline-controlled transactivator and inducible caspase 9 (ptet-mEpoD, ptet-tTAk and pSH1/Sn-E-Fv'-Fvls-casp9-E, respectively) were used in this study. AP20187 induced apoptosis of iCasp9-modified C2C12 myoblasts. In vivo, two groups of male C57BI/6 mice, 8-12 weeks old, were injected intramuscularly with 5 microg/50 g ptet-mEpoD and 0.5 microg/50 g ptet-tTAk. There were 20 animals in group 1 and 36 animals in group 2. Animals from group 2 were also injected with the 6 microg/50 g iCasp9 plasmid. Seventy percent of the animals showed an increase in hematocrit of more than 65% for more than 15 weeks. AP20187 administration significantly reduced hematocrit and plasma Epo levels in 30% of the animals belonging to group 2. TUNEL-positive cells were detected in the muscle of at least 50% of the animals treated with AP20187. Doxycycline administration was efficient in controlling Epo secretion in both groups. We conclude that inducible caspase 9 did not interfere with gene transfer, gene expression or tetracycline control and may be used as a safety mechanism for gene therapy. However, more studies are necessary to improve the efficacy of this technique, for example, the use of lentivirus vector.
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Affiliation(s)
- D S Souza
- Centro de Hematologia e Hemoterapia, Departamento de Clínica Médica, Universidade de Campinas, Campinas, SP, Brasil
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Moritz E, Chiba AK, Kimura EY, Albuquerque D, Guirão FP, Yamamoto M, Costa FF, Bordin JO. Molecular studies reveal that A134T, G156A and G1333A SNPs in the CD177 gene are associated with atypical expression of human neutrophil antigen-2. Vox Sang 2009; 98:160-6. [PMID: 19695014 DOI: 10.1111/j.1423-0410.2009.01233.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES The human neutrophil antigen-2 (HNA-2) is expressed on a subpopulation of neutrophils as most subjects present a negative plus a positive HNA-2 population of neutrophils. The number of neutrophils expressing HNA-2 is variable and may increase in pregnancy, infections, myeloproliferative disorders and after G-CSF. This study investigated the presence of polymorphisms in the gene encoding HNA-2 (CD177) in individuals presenting different patterns of antigen expression and determined the association of single nucleotide polymorphisms (SNPs) with the heterogeneous HNA-2 expression. MATERIALS AND METHODS Flow cytometry was employed to analyse the HNA-2 expression on neutrophils from 135 healthy subjects using two monoclonal antibodies (TAG4, 7D8). Sequencing reactions were performed on subjects whose antigen expression was low (< or = 50%), high (> or = 80%) or atypical (a nonreactive population plus two distinct positive cell populations). RESULTS Five SNPs were detected, two of them (A793C, G1084A) were related to a low expression of HNA-2 (P = 0.031 and P = 0.004). Atypical antigen expression was observed in 5.9% (8/135) of the individuals, three nonpregnant women and five men. In these cases, the cDNA sequences revealed three SNPs (A134T, G156A and G1333A) strongly related to this atypical HNA-2 expression (P = 0.004, P = 0.006 and P < 0.0001, respectively). CONCLUSIONS Our data show that polymorphisms in the CD177 are associated with variations in the HNA-2 expression and may be the cause of atypical expressions.
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Affiliation(s)
- E Moritz
- Discipline of Hematology and Hemotherapy, Federal University of São Paulo, São Paulo, Brazil
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Ribeiro KR, Guarnieri MH, da Costa DC, Costa FF, Pellegrino J, Castilho L. DNA array analysis for red blood cell antigens facilitates the transfusion support with antigen-matched blood in patients with sickle cell disease. Vox Sang 2009; 97:147-52. [PMID: 19392786 DOI: 10.1111/j.1423-0410.2009.01185.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Blood samples from patients with sickle cell disease (SCD) present to transfusion service with numerous antibodies, making the searching for compatible red blood cells (RBC) a challenge. To overcome this problem we developed an effective strategy to meet needs of supplying RBC-compatible units to SCD patients using DNA arrays. METHODS We selected DNA samples from 144 SCD patients with multiple (receiving > 5 units) transfusions previously phenotyped for ABO, Rh(D, C, c, E, e), K1, Fy(a) and Jk(a). We also selected DNA samples from 948 Brazilian blood donors whose ABO/RhD phenotype matched that of the patients. All samples were analysed by DNA array analysis (HEA Beadchip(TM), Bioarray Solutions) to determine polymorphisms associated with antigen expression for 11 blood group systems (Rh, Kell, Kidd, Duffy, MNS, Dombrock, Lutheran, Landsteiner-Wiener, Diego, Colton, Scianna); and one mutation associated with haemoglobinopathies. RESULTS Based on genotype results we were able to predict phenotype-compatible donors needed in order to provide compatible units to this group of patients. Based on their ABO/Rh phenotype we were able to find in this pool of donors compatible units for 134 SCD patients. CONCLUSION Blood group genotyping by DNA array contributes to the management of transfusions in SCD patients by facilitating the transfusion support with antigen-matched blood. It has the potential to improve the life of thousands of SCD-transfused patients by reducing mortality due to transfusion reactions and immunization.
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Affiliation(s)
- K R Ribeiro
- Hemocentro Unicamp, Rua Carlos Chagas 480, Campinas, São Paulo, Brazil
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Affiliation(s)
- F Passetti
- Laboratory of Bioinformatics and Computational Biology, Division of Clinical and Translational Research, Research Coordination (CPQ), Instituto Nacional de Câncer, Rio de Janeiro, Brazil
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Pfeifer WP, Degasperi GR, Almeida MT, Vercesi AE, Costa FF, Saad STO. Vitamin E supplementation reduces oxidative stress in beta thalassaemia intermedia. Acta Haematol 2009; 120:225-31. [PMID: 19218790 DOI: 10.1159/000201988] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Accepted: 12/01/2008] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of this investigation was to study the effect of vitamin E treatment in oxidative stress of red and white cells of beta-thalassaemia intermedia patients. METHODS Nine patients undergoing occasional transfusions (5 females/4 males), median age 39 years (range 15-74), were recruited for oral daily administration of 400 IU vitamin E for 3 months. Twenty-seven milliliters of peripheral blood was obtained before and after 3 months of treatment, and 3 months after treatment completion. In the case of transfused patients (n = 4), blood was obtained at least 30 days after transfusion. Reactive oxygen species (ROS) was measured by flow cytometry; red blood cell (RBC) reduced glutathione (GSH) was measured by dinitrothiocyanobenzene reduction, serum malondialdehyde was measured in terms of thiobarbituric acid-reactive substances (TBARS), and alpha-haemoglobin-stabilizing protein (AHSP) mRNA expression was measured by real-time polymerase chain reaction of reticulocyte RNA extracts. RESULTS beta-Thalassaemia patients presented basal levels of RBC ROS, GSH and serum TBARS statistically different compared with healthy controls. However, after vitamin E administration, patients presented a significant reduction in erythrocyte RBC ROS and serum TBARS levels. In parallel, red cell GSH was significantly increased after treatment. Peripheral mononuclear cells and T lymphocytes also demonstrated a reduction in ROS production. Therefore, after treatment, no significant differences were detected comparing patients and normal controls. Three months after treatment completion, all measurements showed a tendency of returning to basal values. A significant reduction in reticulocyte number was observed after vitamin E treatment. Vitamin E treatment did not modify levels of haemoglobin or AHSP mRNA expression. CONCLUSION Although vitamin E is not capable of reducing anaemia in these patients, it could be useful for reducing oxidative damage in other target organs of beta-thalassaemic patients. Finally, this is the first study to analyse the effects of vitamin E on ROS production in red and white blood cells and AHSP mRNA expression.
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Affiliation(s)
- W P Pfeifer
- Hemocentro and Laboratory of Bioenergetics, Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
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Lanaro C, Franco-Penteado CF, Albuqueque DM, Saad STO, Conran N, Costa FF. Altered levels of cytokines and inflammatory mediators in plasma and leukocytes of sickle cell anemia patients and effects of hydroxyurea therapy. J Leukoc Biol 2008; 85:235-42. [PMID: 19004988 DOI: 10.1189/jlb.0708445] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Inflammation, cell adhesion to vascular endothelium, and endothelial injury contribute to sickle cell anemia (SCA) vaso-occlusion. Although alterations in inflammatory cytokines and biomarkers have been related, reports have been conflicting, and a conclusive role for these molecules in the disease remains to be established. Furthermore, the effect of hydroxyurea therapy (HU) on the release of inflammatory mediators is not understood. This study aimed to determine plasma levels and leukocyte gene expressions of inflammatory mediators in healthy controls, steady-state SCA patients, and SCA patients on HU therapy. TNF-alpha, IL-8, and PGE(2) levels were significantly higher in the plasma of SCA individuals when compared with control individuals. HU therapy was associated with a significant reversal of augmented TNF-alpha and, interestingly, increased plasma anti-inflammatory IL-10. IFN-gamma, IL-10, cyclooxygenase 2 (COX-2), and inducible NO synthase (iNOS) gene expressions were unaltered in SCA mononuclear cells (MC); however, gene expressions of TNF-alpha, IL-8, and the protective enzyme heme oxygenase-1 (HO-1) were significantly higher. HU therapy was not associated with significantly altered SCA MC inflammatory gene expression, although COX-2 mRNA expression was decreased. In SCA neutrophils, gene expressions of IL-8, IFN-gamma, iNOS, and HO-1 were significantly higher than those of control subjects. Patients on HU demonstrated lower iNOS and higher IL-10 neutrophil gene expressions. Taken together, data suggest that alterations in the gene expressions and productions of a number of pro- and anti-inflammatory mediators are present in SCA and importantly, in those patients on HU therapy. Knowledge of these pathways may contribute to further the understanding of the pathophysiology of this disease.
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Affiliation(s)
- C Lanaro
- Hematology and Hemotherapy Center, School of Medicine, UNICAMP, Campinas, SP, Brazil
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Midorikawa GEO, Pinheiro MRR, Vidigal BS, Arruda MC, Costa FF, Pappas GJ, Ribeiro SG, Freire F, Miller RNG. Characterization of Aspergillus flavus strains from Brazilian Brazil nuts and cashew by RAPD and ribosomal DNA analysis. Lett Appl Microbiol 2008; 47:12-8. [PMID: 18498318 DOI: 10.1111/j.1472-765x.2008.02377.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study was to determine the genetic variability in Aspergillus flavus populations from Brazil nut and cashew and develop a polymerase chain reaction (PCR) detection method. METHODS AND RESULTS Chomatography analysis of 48 isolates identified 36 as aflatoxigenic (75%). One hundred and forty-one DNA bands were generated with 11 random amplified polymorphic DNA (RAPD) primers and analysed via unweighted pair group analysis, using arithmetic means (UPGMA). Isolates grouped according to host, with differentiation of those from A. occidentale also according to geographical origin. Aspergillus flavus-specific PCR primers ASPITSF2 and ASPITSR3 were designed from ribosomal DNA internal transcribed spacers (ITS 1 and 2), and an internal amplification control was developed, to prevent false negative results. Specificity to only A. flavus was confirmed against DNA from additional aspergilli and other fungi. CONCLUSIONS RAPD-based characterization differentiated isolates according to plant host. The PCR primer pair developed showed specificity to A. flavus, with a detection limit of 10 fg. SIGNIFICANCE AND IMPACT OF THE STUDY Genetic variability observed in A. flavus isolates from two Brazilian agroecosystems suggested reproductive isolation. The PCR detection method developed for A. flavus represents progress towards multiplex PCR detection of aflatoxigenic and nonaflatoxigenic strains in Hazard Analysis Critical Control Point systems.
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Affiliation(s)
- G E O Midorikawa
- Postgraduate program in Genomic Science and Biotechnology, Universidade Católica de Brasília, Brasília, DF, Brazil
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Moreira LS, de Andrade TG, Albuquerque DM, Cunha AF, Fattori A, Saad STO, Costa FF. IDENTIFICATION OF DIFFERENTIALLY EXPRESSED GENES INDUCED BY HYDROXYUREA IN RETICULOCYTES FROM SICKLE CELL ANAEMIA PATIENTS. Clin Exp Pharmacol Physiol 2008; 35:651-5. [DOI: 10.1111/j.1440-1681.2007.04861.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
BACKGROUND AND OBJECTIVE Human umbilical cord blood (UCB) is an important source of haematopoietic stem cells; however, the behaviour of progenitor cells obtained from premature and full-term neonates is still a controversy subject. Thus, the aim of this study was to evaluate cell cycle parameters and the proliferative capacity of UCB progenitor cells from premature and full-term neonates. MATERIAL AND METHODS Clonogenic assays were performed with methylcellulose, medium supplemented with recombinant stimulating growth factors and the colonies were scored on the seventh day and the 14th day of culture. A cell cycle study was carried out by DNA analysis using flow cytometry and 30 000 events were acquired; p107 and p130 expressions were analysed by Western blotting. RESULTS Cultures obtained from UCB of premature neonates showed an early growth of colony-forming unit (CFU)-burst forming unit erythroid/CFU-granulocyte, erythrocyte, macrophage and megakaryocyte (BFU-E/GEMM), and CFU-granulocyte, macrophage (GM) by the seventh day of culture (P < 0.001). Therefore, the number and morphological characteristics of these colonies were comparable with those obtained from full-term neonates, on the 14th day of culture. At the 14th day, a large amount of CFU-GM was detected in the premature group (P < 0.0032). The premature culture on the 14th day showed fibroblasts and was comparable to those of full-term neonates on the 21st day in terms of number and morphology of the colonies. DNA analysis showed that the number of cells in S-phase was also higher in premature samples when compared to full-term neonates, P < 0.0021 (0 h = 12.8 vs. 2.5%; 16 h = 10.5 vs. 5.9%; 20 h = 13.5 vs. 10.3%; 24 h = 13.8 vs. 9.1%; 48 h = 14.0 vs. 5.4%; 72 h = 20.5 vs. 8.9%; 96 h = 13.8 vs. 7.7%). The Western blotting results demonstrated that p107 and p130 cell cycle protein expressions were higher in premature cells than in full-term cells. CONCLUSION These results suggest that the higher capacity of proliferation and early differentiation of premature UCB might not be related only to the amount of stem/progenitor cells but also to a different timing of cell cycle entry.
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Affiliation(s)
- A C M Luzo
- Hemocentro and Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), CEP 13083-970 Campinas, São Paulo, Brazil
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Fattori A, Kimura EM, Albuquerque DM, Oliveira DM, Costa FF, Sonati MF. Hb Indianapolis [beta112 (G14) Cys-->Arg] as the probable cause of moderate hemolytic anemia and renal damage in a Brazilian patient. Am J Hematol 2007; 82:672-5. [PMID: 17211844 DOI: 10.1002/ajh.20860] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hemoglobin (Hb) Indianapolis [beta112 (G14) Cys-->Arg] is a rare and slightly unstable beta-globin variant. All carriers described to date were clinically normal with only mild reticulocytosis. We report here a case of a Brazilian patient in whom hemolytic anemia and acute renal failure were probably caused by the presence of this variant.
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Affiliation(s)
- A Fattori
- Hematology and Hemotherapy Center, School of Medical Sciences, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
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Pereira CM, de Almeida OP, Corrêa MEP, Costa FF, de Souza CA, Barjas-Castro ML. Detection of human herpesvirus 6 in patients with oral chronic graft-vs-host disease following allogeneic progenitor cell transplantation. Oral Dis 2007; 13:329-34. [PMID: 17448218 DOI: 10.1111/j.1601-0825.2006.01294.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Chronic graft-vs-host disease (cGVHD) is a major cause of morbidity in long-term survivors of allogeneic hematopoietic progenitor cell transplantation. Herpesviruses are involved in the occurrence and progression of various oral diseases. AIM The aim of this study was to investigate the role of human herpesvirus 6 (HHV6) in patients with oral manifestations of cGVHD. MATERIALS AND METHODS Peripheral blood and oral fluids (whole saliva, gingival crevicular fluid and parotid gland saliva) from 19 cGVHD patients, and 28 blood donors were examined for HHV6. Oral tissue samples were collected from 12 cGVHD patients and 12 healthy individuals. Nested polymerase chain reaction was employed to identify the HHV6. RESULTS AND CONCLUSION The virus was detected in whole saliva in 13 cGVHD patients (68%) and in 19 blood donors (67%). HHV6 was not identified in any of the gingival crevicular fluid and parotid gland saliva samples in cGVHD patients. In the control group 14.3% of both, four gingival crevicular fluid and four parotid gland saliva samples were positive. Two oral tissue samples of cGVHD patients were positive for HHV6. These results indicate that patients with oral manifestations of cGVHD and healthy individuals present high and similar incidence of HHV6 in blood and oral fluids. These data do not support the importance of HHV6 in oral lesions of cGVHD.
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Affiliation(s)
- C M Pereira
- Oral Semiology and Oral Pathology, School of Dentistry of Piracicaba, State University of Campinas, São Paulo, Brazil.
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47
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Assis AM, Costa FF, Arruda VR, Annichino-Bizzacchi JM, Bertuzzo CS. Three novel mutations in the activin receptor-like kinase 1 (ALK-1) gene in hereditary hemorrhagic telangiectasia type 2 in Brazilian patients. J Hum Genet 2007; 52:237-243. [PMID: 17219009 DOI: 10.1007/s10038-006-0104-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2006] [Accepted: 12/13/2006] [Indexed: 10/23/2022]
Abstract
Hereditary hemorrhagic telangiectasia (HHT) or Osler-Rendu-Weber disease is a systemic fibrovascular dysplasia with an autosomal dominant inheritance pattern. Mutations in two genes, endoglin and ALK-1, are known to cause HHT, both of which mediate signaling by transforming growth factor beta ligands in vascular endothelial cells. Ten patients were analyzed. Diagnosis of HHT was carried out by means of family history, recurrent bleeding, and the presence of multiple telangiectases lesions. Conformation-sensitive gel electrophoresis analyses with consistent abnormal migration patterns were cloned and sequenced using the MegaBace 1000 DNA automated analyzer. Three novel mutations were identified in the coding sequence of the ALK-1 gene in five patients and their families, which demonstrated clinical manifestations of HHT type 2. These mutations included a G insertion and a T deletion of single base pairs in exons 3 and 7, as well as missense mutations in exons 7 and 8 of the ALK-1 gene. These data indicate that loss-of-function mutations in a single allele of the ALK1 locus are sufficient to contribute to defects in maintaining endothelial integrity. We suggest the high rate of mutation detection and the small size of the ALK-1 gene make genomic sequencing a viable diagnostic test for HHT2.
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Affiliation(s)
- A M Assis
- Hemoglobin and Genome Laboratory, Hematology and Hemotherapy Center, State University of Campinas, Unicamp, R. Carlos Chagas, 480, Cidade Universitária "Zeferino Vaz", CEP: 13081-970, Barão Geraldo, Campinas, SP, Brazil.
| | - F F Costa
- Hemoglobin and Genome Laboratory, Hematology and Hemotherapy Center, State University of Campinas, Unicamp, R. Carlos Chagas, 480, Cidade Universitária "Zeferino Vaz", CEP: 13081-970, Barão Geraldo, Campinas, SP, Brazil
| | - V R Arruda
- University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J M Annichino-Bizzacchi
- Hemoglobin and Genome Laboratory, Hematology and Hemotherapy Center, State University of Campinas, Unicamp, R. Carlos Chagas, 480, Cidade Universitária "Zeferino Vaz", CEP: 13081-970, Barão Geraldo, Campinas, SP, Brazil
| | - C S Bertuzzo
- Department of Medical Genetics, State University of Campinas, Campinas, Brazil
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Noronha JFA, Costa FF, Saad STO, Lorand-Metze IGH, Grotto HZW. Evaluation of reticulated platelets in patients with sickle cell diseases. Thromb Res 2007; 121:259-67. [PMID: 17521711 DOI: 10.1016/j.thromres.2007.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Revised: 03/28/2007] [Accepted: 04/11/2007] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Reticulated platelet (RP) count provides an estimate of thrombopoiesis. The objective was to evaluate RP in patients in different stages of sickle cell disease (SCD) and to determine the relationship between interleukin-6 (IL-6), interleukin-3 (IL-3) and thrombopoietin (TPO) and RP count and degree of activation. METHODS Eighty-nine adult patients with SCD were studied: 38 were in the steady state, 27 in hemolytic crisis (HC) and 24 in vaso-occlusive crisis (VOC). RPs and activated platelets were analyzed by flow cytometry. Soluble P-selectin, IL-6, IL-3 and thrombopoietin (TPO) levels were measured by ELISA tests. RESULTS The patients in VOC had a higher absolute number of RPs and CD62P+ platelets than did the control group or patients in the steady state. A significant correlation was observed between the absolute number of CD62P+ platelets and RPs in patients in the steady state, HC and VOC. In the steady-state group of patients, the level of soluble P-selectin was found to be dependent on the RP values. IL-3 and TPO serum levels were higher in patients in the steady state, HC and VOC than in the control group. IL-6 serum levels were higher in HC and VOC patients than in the control group and higher in patients in the steady state than in the VOC group. CONCLUSION Our results suggest that PRs contribute to the vaso-occlusive process in sickle cell disease. Increased interleukin serum levels probably indicate that inflammatory process is involved in the vascular-occlusive phenomenon. However, it appears that these inflammatory mediators do not have an effect on thrombopoiesis in sickle-cell-disease patients.
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Affiliation(s)
- J F A Noronha
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas, Campinas, Brazil.
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Abstract
MicroRNAs (miRNAs) consist of a growing class of non-coding RNAs (ncRNAs) that negatively regulate the expression of genes involved in development, differentiation, proliferation, apoptosis and other important cellular processes. miRNAs are usually 18-25 nt long and are each able to regulate several mRNAs by mechanisms such as incomplete base pairing and Post-Transcriptional Gene Silencing (PTGS). A growing number of reports have shown that aberrant miRNA expression is a common feature of human diseases including cancer, which has sparked interest in targeting these regulators of gene expression as a means of ameliorating these diseases. Here, we review important aspects of miRNA function in normal and pathological states and discuss new modalities of epigenetic intervention strategies that could be used to amend defects in miRNA/mRNA interactions.
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Affiliation(s)
- T Wurdinger
- Molecular Neurogenetics Unit, Massachusetts General Hospital and Harvard Medical School, Boston/Charlestown, MA, USA.
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Gilli SC, De Paula EV, Biscaro FP, Marques JF, Costa FF, Saad ST. Third‐trimester erythrocytapheresis in pregnant patients with sickle cell disease. Int J Gynaecol Obstet 2006; 96:8-11. [PMID: 17188271 DOI: 10.1016/j.ijgo.2006.09.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2006] [Revised: 08/11/2006] [Accepted: 09/14/2006] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate the effects of prophylactic transfusion by means of erythrocytapheresis at the beginning of the third trimester of pregnancy in women with sickle cell disease (SCD). METHODS A cohort of 14 pregnant women with SCD who received prophylactic erythrocytapheresis transfusions at the beginning of the third trimester was retrospectively compared with a cohort of 17 pregnant women who received simple prophylactic transfusions for no indication other than SCD severity. RESULTS Prophylactic erythrocytapheresis transfusions were associated with a lower risk of intrauterine growth restriction (OR, 0.11; 95% confidence interval, 0.01-1.00) and oligohydramnios (OR, 0.65; 95% confidence interval, 0.45-0.92) in pregnant women with SCD. CONCLUSION These results suggest that erythrocytapheresis transfusions are beneficial in women with SCD who are in the third trimester of pregnancy. Given the decrease in transfusion risks, this therapy deserves further evaluation in future trials.
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Affiliation(s)
- S C Gilli
- Hematology and Hemotherapy Center, State University of Campinas, Campinas, SP, Brazil
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