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Rodrigues VS, Trevisan LAC, Cintra BS, Pires RH, Ribeiro AB, Tavares DC, Oberhaus E, Ferreira JC. Effectiveness of photo-ozone therapy against equine Pythium insidiosum. J Equine Vet Sci 2024; 134:105030. [PMID: 38342358 DOI: 10.1016/j.jevs.2024.105030] [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: 10/14/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Cutaneous pythiosis is a life-threatening infectious disease. Low-level laser therapy (LLLT) and ozone (O3) have been used individually in the treatment of infected wounds. The goals of the study were a) to characterize the antimicrobial action of the photo-ozone therapy (LLLT-O3) against equine Pythium insidiosum, and b) to assess the cytotoxic potential of the LLLT-O3 in keratinocytes. Specimens of pathogen were isolated from 10 horses. After culturing, 120 hyphae plugs were distributed among four groups (n=30 hyphae plugs/group): LLLT (laser irradiation for 160 sec;), O3 (exposition to O3 for 15 min;), LLLT-O3 (LLLT and O3 treatments in sequence) and control (untreated plugs). The hyphae growth was measured during the first 14 days post-treatment. Where there was an absence of hyphae growth, the plug was recultured for an additional 7 days. The cytotoxic potential of the treatments against HaCaT keratinocytes was assessed by colorimetric assays. The LLLT-O3 and O3 treatments inactivated, respectively, 92.3% (28/30) and 30% (9/30) of the samples. No growth was detected after 7 days reculture of inactivated hyphae plugs on new media. Hyphae growth was visualized in 100% of the control and LLLT hyphae plugs. The viability of HaCaT cells was not affected by the isolated treatments (LLLT and O3), while the LLLT-O3 showed slight cytotoxic effect (20%) when compared to the control group (P<0.05). Photo-ozone therapy inactivated equine P. insidiosum hyphae with minimal cytotoxicity in skin cells in vitro.
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Affiliation(s)
- V S Rodrigues
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - L A C Trevisan
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - B S Cintra
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - R H Pires
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - A B Ribeiro
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - D C Tavares
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - E Oberhaus
- School of Animal Sciences, Louisiana State University, 201D Animal & Food Sciences Lab Bldg., Baton Rouge, LA, USA, 70803
| | - J C Ferreira
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600.
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Ferreira JC, Alshamali F, Pereira L, Fernandes V. Characterization of Arabian Peninsula whole exomes: Contributing to the catalogue of human diversity. iScience 2022; 25:105336. [DOI: 10.1016/j.isci.2022.105336] [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] [Received: 05/06/2022] [Revised: 08/01/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022] Open
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Ferreira JC, Alshamali F, Montinaro F, Cavadas B, Torroni A, Pereira L, Raveane A, Fernandes V. Projecting Ancient Ancestry in Modern-Day Arabians and Iranians: A Key Role of the Past Exposed Arabo-Persian Gulf on Human Migrations. Genome Biol Evol 2021; 13:6364187. [PMID: 34480555 PMCID: PMC8435661 DOI: 10.1093/gbe/evab194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
The Arabian Peninsula is strategic for investigations centered on the early structuring of modern humans in the wake of the out-of-Africa migration. Despite its poor climatic conditions for the recovery of ancient human DNA evidence, the availability of both genomic data from neighboring ancient specimens and informative statistical tools allow modeling the ancestry of local modern populations. We applied this approach to a data set of 741,000 variants screened in 291 Arabians and 78 Iranians, and obtained insightful evidence. The west-east axis was a strong forcer of population structure in the Peninsula, and, more importantly, there were clear continuums throughout time linking western Arabia with the Levant, and eastern Arabia with Iran and the Caucasus. Eastern Arabians also displayed the highest levels of the basal Eurasian lineage of all tested modern-day populations, a signal that was maintained even after correcting for a possible bias due to a recent sub-Saharan African input in their genomes. Not surprisingly, eastern Arabians were also the ones with highest similarity with Iberomaurusians, who were, so far, the best proxy for the basal Eurasians amongst the known ancient specimens. The basal Eurasian lineage is the signature of ancient non-Africans who diverged from the common European-eastern Asian pool before 50,000 years ago, prior to the later interbred with Neanderthals. Our results appear to indicate that the exposed basin of the Arabo-Persian Gulf was the possible home of basal Eurasians, a scenario to be further investigated by searching ancient Arabian human specimens.
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Affiliation(s)
- Joana C Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal.,ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Farida Alshamali
- Department of Forensic Sciences and Criminology, Dubai Police General Headquarters, Dubai, United Arab Emirates
| | - Francesco Montinaro
- Department of Biology-Genetics, University of Bari, Italy.,Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia
| | - Bruno Cavadas
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
| | - Antonio Torroni
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Italy
| | - Luisa Pereira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
| | - Alessandro Raveane
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Italy.,Laboratory of Haematology-Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Veronica Fernandes
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
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Canberk S, Ferreira JC, Pereira L, Batısta R, Vieira AF, Soares P, Sobrinho Simões M, Máximo V. Analyzing the Role of DICER1 Germline Variations in Papillary Thyroid Carcinoma. Eur Thyroid J 2021; 9:296-303. [PMID: 33718253 PMCID: PMC7923931 DOI: 10.1159/000509183] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 06/03/2020] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION DICER1 is a member of RNase III family that has a pivotal role in the biogenesis of microRNAs, being important for normal development. Dysregulation of DICER1 has been described in different human tumours; however, there is insufficient data on the risk of thyroid cancer in the presence of germline DICER1 variants, particularly when focusing on the background of papillary thyroid carcinoma (PTC). For this purpose, we ascertained the presence of DICER1 variants in 502 (PTC) cases available from The Cancer Genome Atlas (TCGA) research network in a well-characterized pathological context. MATERIAL AND METHODS in this study we analyzed 502 samples from 502 patients, described as PTC in the TCGA database. Tumour diagnoses were re-evaluated by 2 pathologists (S.C. and M.S.-S.) on slides available from the database, and clinicopathological and demographic data was examined. Data concerning germline and sporadic DICER1 gene variants as well as frequent mutations in the genes involved in thyroid carcinogenesis (e.g., RAS and BRAFV600E) was retrieved from the database. RESULTS AND DISCUSSION We report 1 new germline possibly pathogenic variant, besides 15 others already been identified in ClinVar. We found that the DICER1-positive PTC group more frequently includes PTC variants, namely the oncocytic, follicular, and aggressive (hobnail variant of PTC) variants. A previous association of DICER1 had been demonstrated, mainly with the follicular variant of PTC and follicular thyroid carcinomas. Tumours harbouring germline DICER1 mutations were more frequently "bilateral" and "encapsulated." The frequent association of DICER1 germline variants with other mutations associated with thyroid cancer can reflect an haploinsufficiency tumour suppressor gene function of DICER1, as suggested from the study of animal models.
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Affiliation(s)
- Sule Canberk
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto, Porto, Portugal
| | - Joana C. Ferreira
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Luísa Pereira
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Rui Batısta
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Andre F. Vieira
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Paula Soares
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Manuel Sobrinho Simões
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
- Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto, Porto, Portugal
- Department of Pathology and Oncology, Centro Hospitalar São João, Porto, Portugal
| | - Valdemar Máximo
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
- *Valdemar Máximo, Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Rua Alfredo Allen 208, PT–4200-135 Porto (Portugal),
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Cavadas B, Camacho R, Ferreira JC, Ferreira RM, Figueiredo C, Brazma A, Fonseca NA, Pereira L. Gastric Microbiome Diversities in Gastric Cancer Patients from Europe and Asia Mimic the Human Population Structure and Are Partly Driven by Microbiome Quantitative Trait Loci. Microorganisms 2020; 8:microorganisms8081196. [PMID: 32781641 PMCID: PMC7463948 DOI: 10.3390/microorganisms8081196] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 12/15/2022] Open
Abstract
The human gastrointestinal tract harbors approximately 100 trillion microorganisms with different microbial compositions across geographic locations. In this work, we used RNASeq data from stomach samples of non-disease (164 individuals from European ancestry) and gastric cancer patients (137 from Europe and Asia) from public databases. Although these data were intended to characterize the human expression profiles, they allowed for a reliable inference of the microbiome composition, as confirmed from measures such as the genus coverage, richness and evenness. The microbiome diversity (weighted UniFrac distances) in gastric cancer mimics host diversity across the world, with European gastric microbiome profiles clustering together, distinct from Asian ones. Despite the confirmed loss of microbiome diversity from a healthy status to a cancer status, the structured profile was still recognized in the disease condition. In concordance with the parallel host-bacteria population structure, we found 16 human loci (non-synonymous variants) in the European-descendent cohorts that were significantly associated with specific genera abundance. These microbiome quantitative trait loci display heterogeneity between population groups, being mainly linked to the immune system or cellular features that may play a role in enabling microbe colonization and inflammation.
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Affiliation(s)
- Bruno Cavadas
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (J.C.F.); (R.M.F.); (C.F.); (L.P.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
- Correspondence:
| | - Rui Camacho
- FEUP-Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal;
- INESC TEC—Instituto de Engenharia de Sistemas e Computadores, Tecnologia e Ciência, Universidade do Porto, 4200-465 Porto, Portugal
| | - Joana C. Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (J.C.F.); (R.M.F.); (C.F.); (L.P.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Rui M. Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (J.C.F.); (R.M.F.); (C.F.); (L.P.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
| | - Ceu Figueiredo
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (J.C.F.); (R.M.F.); (C.F.); (L.P.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
- Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Alvis Brazma
- European Molecular Biology Laboratory, European Bioinformatics Institute, EMBL-EBI, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK;
| | - Nuno A. Fonseca
- CIBIO—Centro de Investigação em Biodiversidade e Recursos Genético, Universidade do Porto, 4485-661 Vairão, Portugal;
| | - Luísa Pereira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (J.C.F.); (R.M.F.); (C.F.); (L.P.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
- Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
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Rodenbusch CR, Ferreira JC, Cunha DLBW, Roehe PM, Soardi MA, Costa EF, Almeida LL. Molecular evidence of bovine herpesvirus 1 and 5 in cattle with suspected rabies in Rio Grande do Sul state, Brazil. Comp Immunol Microbiol Infect Dis 2020; 73:101495. [PMID: 32889429 DOI: 10.1016/j.cimid.2020.101495] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/07/2020] [Accepted: 05/11/2020] [Indexed: 11/28/2022]
Abstract
Rabies and herpetic encephalitis are the main viral infections in bovines with neurological symptoms. Bovine rabies has a high prevalence in Central and South America, while bovine encephalitis associated with herpesvirus is especially important in South America. Viral isolation is the classical way to confirm herpesvirus infection, but molecular evidence of the presence of the virus in affected animals is gaining importance in the diagnosis of the disease in the laboratory. This study investigated the presence of herpesvirus type 1 and 5 (BoHV-1 and BoHV-5) in 182 encephalon of rabies-suspected cattle in Rio Grande do Sul state (RS), Brazil using multiplex real-time polymerase chain reaction (mRT-PCR). The rabies virus was investigated by direct fluorescent antibody assay and intracerebral suckling mouse inoculation. The genomes of BoHV-1 and BoHV-5 were detected in 17% of samples. BoHV-5 and BoHV-1 were detected in 100% and 19% of BoHV positive samples, respectively, indicating the circulation of the pathogens in cattle herds in RS. The high Ct values and the absence of isolation suggest viral latency. Coinfection of herpesvirus and the rabies virus was detected in 28% of samples, although no significant association between pathogens was observed. Rabies was detected in 57.7% of suspected samples, confirming the importance of the disease in the state. Concerning the method by which samples were conserved, no significant difference was observed between the number of positive results in frozen and refrigerated samples.
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Affiliation(s)
- C R Rodenbusch
- Programa de Pós-graduação em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil; Laboratório de Virologia, Instituto de Pesquisas Veterinárias Desidério Finamor, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil.
| | - J C Ferreira
- Laboratório de Virologia, Instituto de Pesquisas Veterinárias Desidério Finamor, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil
| | - D L B W Cunha
- Laboratório de Virologia, Instituto de Pesquisas Veterinárias Desidério Finamor, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil
| | - P M Roehe
- Programa de Pós-graduação em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil
| | - M A Soardi
- Laboratório de Virologia, Instituto de Pesquisas Veterinárias Desidério Finamor, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil
| | - E F Costa
- Laboratório de Epidemiologia, Faculdade de Medicina Veterinária, UFRGS, Av. Bento Gonçalves, 9090, Agronomia, Porto Alegre, RS, CEP 91540-000, Brazil
| | - L L Almeida
- Programa de Pós-graduação em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil; Laboratório de Virologia, Instituto de Pesquisas Veterinárias Desidério Finamor, Secretaria da Agricultura, Pecuária e Irrigação, Estrada do Conde, 6000, Eldorado do Sul, RS CEP 92990-000, Brazil
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Fernandes V, Brucato N, Ferreira JC, Pedro N, Cavadas B, Ricaut FX, Alshamali F, Pereira L. Genome-Wide Characterization of Arabian Peninsula Populations: Shedding Light on the History of a Fundamental Bridge between Continents. Mol Biol Evol 2019; 36:575-586. [PMID: 30649405 DOI: 10.1093/molbev/msz005] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The Arabian Peninsula (AP) was an important crossroad between Africa, Asia, and Europe, being the cradle of the structure defining these main human population groups, and a continuing path for their admixture. The screening of 741,000 variants in 420 Arabians and 80 Iranians allowed us to quantify the dominant sub-Saharan African admixture in the west of the peninsula, whereas South Asian and Levantine/European influence was stronger in the east, leading to a rift between western and eastern sides of the Peninsula. Dating of the admixture events indicated that Indian Ocean slave trade and Islamization periods were important moments in the genetic makeup of the region. The western-eastern axis was also observable in terms of positive selection of diversity conferring lactose tolerance, with the West AP developing local adaptation and the East AP acquiring the derived allele selected in European populations and existing in South Asia. African selected malaria resistance through the DARC gene was enriched in all Arabian genomes, especially in the western part. Clear European influences associated with skin and eye color were equally frequent across the Peninsula.
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Affiliation(s)
- Veronica Fernandes
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Nicolas Brucato
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université de Toulouse Midi-Pyrénées, CNRS, IRD, UPS. 118 route de Narbonne, Bat 4R1, 31062 Toulouse cedex 9, France
| | - Joana C Ferreira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Nicole Pedro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Bruno Cavadas
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - François-Xavier Ricaut
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université de Toulouse Midi-Pyrénées, CNRS, IRD, UPS. 118 route de Narbonne, Bat 4R1, 31062 Toulouse cedex 9, France
| | - Farida Alshamali
- Department of Forensic Sciences and Criminology, Dubai Police General Headquarters, Dubai, United Arab Emirates
| | - Luisa Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto, Porto, Portugal
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Novak GV, Molinari BC, Ferreira JC, Sakamoto AP, Terreri MT, Pereira RMR, Saad-Magalhães C, Aikawa NE, Campos LM, Len CA, Appenzeller S, Ferriani VP, Silva MF, Oliveira SK, Islabão AG, Sztajnbok FR, Paim LB, Barbosa CM, Santos MC, Bica BE, Sena EG, Moraes AJ, Rolim AM, Spelling PF, Scheibel IM, Cavalcanti AS, Matos EN, Robazzi TC, Guimarães LJ, Santos FP, Silva CT, Bonfá E, Silva CA. Characteristics of 1555 childhood-onset lupus in three groups based on distinct time intervals to disease diagnosis: a Brazilian multicenter study. Lupus 2018; 27:1712-1717. [PMID: 30020023 DOI: 10.1177/0961203318787037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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] [Indexed: 12/12/2022]
Abstract
Objective The objective of this study was to compare demographic data, clinical/laboratorial features and disease activity at diagnosis in three different groups with distinct time intervals between onset of signs/symptoms and disease diagnosis. Methods A multicenter study was performed in 1555 childhood-onset systemic lupus erythematosus (American College of Rheumatology criteria) patients from 27 pediatric rheumatology services. Patients were divided into three childhood-onset systemic lupus erythematosus groups: A: short time interval to diagnosis (<1 month); B: intermediate time interval (≥1 and <3 months); and C: long time interval (≥3 months). An investigator meeting was held to define the protocol. Demographic data, SLICC classification criteria and SLEDAI-2 K were evaluated. Results The number of patients in each group was: A = 60 (4%); B = 522 (33.5%); and C = 973 (62.5%). The median age at diagnosis (11.1 (4.2-17) vs. 12 (1.9-17.7) vs. 12.5 (3-18) years, P = 0.025) was significantly lower in group A compared with groups B and C. The median number of diagnostic criteria according to SLICC (7 (4-12) vs. 6 (4-13) vs. 6 (4-12), P < 0.0001) and SLEDAI-2 K (18 (6-57) vs. 16 (2-63) vs. 13 (1-49), P < 0.0001) were significantly higher in group A than the other two groups. The frequency of oral ulcers in the palate (25% vs. 15% vs. 11%, P = 0.003), pleuritis (25% vs. 24% vs. 14%, P < 0.0001), nephritis (52% vs. 47% vs. 40%, P = 0.009), neuropsychiatric manifestations (22% vs. 13% vs. 10%, P = 0.008), thrombocytopenia (32% vs. 18% vs. 19%, P = 0.037), leucopenia/lymphopenia (65% vs. 46% vs. 40%, P < 0.0001) and anti-dsDNA antibodies (79% vs. 66% vs. 61%, P = 0.01) were significantly higher in group A compared with the other groups. In contrast, group C had a less severe disease characterized by higher frequencies of synovitis (61% vs. 66% vs. 71%, P = 0.032) and lower frequencies of serositis (37% vs. 33% vs. 25%, P = 0.002), proteinuria >500 mg/day (48% vs. 45% vs. 36%, P = 0.002) and low complement levels (81% vs. 81% vs. 71%, P < 0.0001) compared with groups A or B. Conclusions Our large Brazilian multicenter study demonstrated that for most childhood-onset systemic lupus erythematosus patients, diagnosis is delayed probably due to mild disease onset. Conversely, the minority has a very short time interval to diagnosis and a presentation with a more severe and active multisystemic condition.
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Affiliation(s)
- G V Novak
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - B C Molinari
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - J C Ferreira
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - A P Sakamoto
- 2 Pediatric Rheumatology Unit, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - M T Terreri
- 2 Pediatric Rheumatology Unit, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - R M R Pereira
- 3 Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - C Saad-Magalhães
- 4 Pediatric Rheumatology Division, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - N E Aikawa
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
- 3 Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - L M Campos
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - C A Len
- 2 Pediatric Rheumatology Unit, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - S Appenzeller
- 5 Pediatric Rheumatology Unit, University of Campinas (UNICAMP), Campinas, Brazil
| | - V P Ferriani
- 6 Pediatric Rheumatology Unit, University of Sao Paulo, Ribeirão Preto, Brazil
| | - M F Silva
- 7 Pediatric Rheumatology Unit, Hospital Geral de Fortaleza, Fortaleza, Brazil
| | - S K Oliveira
- 8 Pediatric Rheumatology Unit, Rio de Janeiro Federal University (IPPMG-UFRJ), Rio de Janeiro, Brazil
| | - A G Islabão
- 9 Pediatric Rheumatology Unit, Hospital Jose Alencar, Brasília, Brazil
| | - F R Sztajnbok
- 10 Pediatric Rheumatology Unit, Pedro Ernesto University Hospital, Rio de Janeiro, Brazil
| | - L B Paim
- 11 Pediatric Rheumatology Unit, Albert Sabin Children's Hospital, Fortaleza, Brazil
| | - C M Barbosa
- 12 Pediatric Rheumatology Unit, Hospital Darcy Vargas, Sao Paulo, Brazil
| | - M C Santos
- 13 Pediatric Rheumatology Unit, Irmandade da Santa Casa de Misericórdia de Sao Paulo, Sao Paulo, Brazil
| | - B E Bica
- 14 Rheumatology Division, Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, Brazil
| | - E G Sena
- 15 Pediatric Rheumatology Unit, Lauro Vanderley University Hospital, João Pessoa, Brazil
| | - A J Moraes
- 16 Pediatric Rheumatology Unit, Federal University of Pará, Belém, Brazil
| | - A M Rolim
- 17 Pediatric Rheumatology Unit, Obras Sociais Irmã Dulce, Salvador, Brazil
| | - P F Spelling
- 18 Pediatric Rheumatology Unit, Hospital Evangélico de Curitiba, Curitiba, Brazil
| | - I M Scheibel
- 19 Pediatric Rheumatology Unit, Hospital Criança Conceição, Porto Alegre, Brazil
| | - A S Cavalcanti
- 20 Pediatric Rheumatology Unit, Federal University of Pernambuco, Recife, Brazil
| | - E N Matos
- 21 Pediatric Rheumatology Unit, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - T C Robazzi
- 22 Pediatric Rheumatology Unit, Federal University of Bahia, Salvador, Brazil
| | - L J Guimarães
- 23 Pediatric Rheumatology Unit, University of Brasilia, Brasília, Brazil
| | - F P Santos
- 24 Pediatric Rheumatology Unit, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - C T Silva
- 25 Pediatric Rheumatology Unit, Hospital Municipal Piedade, Rio de Janeiro, Brazil
| | - E Bonfá
- 3 Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - C A Silva
- 1 Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
- 3 Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
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Rocha RN, Bezerra JC, Ferreira JC, Tavares FB, Silva AG. 1018 New concepts of disability and impairment applied in the occupational health physician evaluation: is there a conflict with bioethics principles? Occup Med (Lond) 2018. [DOI: 10.1136/oemed-2018-icohabstracts.1100] [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: 11/04/2022] Open
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Boakari YL, Ferreira JC, Canesin HS, Thompson DL, Lima FS, Pantoja JCF, Meira C. Influence of two ovulation-inducing agents on the pituitary response and follicle blood flow in mares. Theriogenology 2017; 100:95-99. [PMID: 28708540 DOI: 10.1016/j.theriogenology.2017.05.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 02/06/2017] [Revised: 05/24/2017] [Accepted: 05/30/2017] [Indexed: 10/19/2022]
Abstract
The objective of the current study was to evaluate the effects of deslorelin and hCG, two ovulation-inducing therapies, on LH surge and follicle vascularity in mares. Thirty mares were either treated with 1.5 mg IM of deslorelin, 2,500 IU IV of hCG or 2 mL IM of NaCl 0.9% (GnRH, hCG and Saline groups, respectively). Power-flow Doppler examination and blood collection were performed every hour during the first 12 hours after treatment (H0) and every six hours between hours 12 (H12) and 30 (H30) after treatment. Moreover, endpoints were evaluated every hour through the last six hours before ovulation (OV-6 to OV-1). In GnRH group, plasma LH concentration progressively increased (P < 0.001) during the first 6 hours after treatment and remained high (P > 0.1) until OV-1. A significant increase in LH concentrations was first detected (P < 0.05) at 24 hours after treatment in hCG group, while no changes (P > 0.1) on LH levels were found during H0-H30 and between OV-6 and OV-1 in the Saline group. Independent of the treatment, significant variations on the percentage of the follicle wall with Doppler signals were not observed (P > 0.1) throughout the entire experiment. A weak correlation between the preovulatory follicle vascularity and the plasma LH concentration was found in GnRH, hCG and Saline groups (r = +0.29, +0.29 and -0.23, respectively; P ˂ 0.0001). These results described for the first time the immediate and continuous pituitary response to ovulation-inducing therapy with injectable deslorelin. Moreover, spontaneous and induced ovulations were not preceded by an increased follicle vascularity, which differs from previous reports in large animals.
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Affiliation(s)
- Y L Boakari
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil; Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, United States
| | - J C Ferreira
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA; School of Animal Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA, United States.
| | - H S Canesin
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - D L Thompson
- School of Animal Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA, United States
| | - F S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - J C F Pantoja
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
| | - C Meira
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil
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Lopes SRM, Gormezano NWS, Gomes RC, Aikawa NE, Pereira RMR, Terreri MT, Magalhães CS, Ferreira JC, Okuda EM, Sakamoto AP, Sallum AME, Appenzeller S, Ferriani VPL, Barbosa CM, Lotufo S, Jesus AA, Andrade LEC, Campos LMA, Bonfá E, Silva CA. Outcomes of 847 childhood-onset systemic lupus erythematosus patients in three age groups. Lupus 2017; 26:996-1001. [PMID: 28134038 DOI: 10.1177/0961203317690616] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective The objective of this study was to assess outcomes of childhood systemic lupus erythematosus (cSLE) in three different age groups evaluated at last visit: group A early-onset disease (<6 years), group B school age (≥6 and <12 years) and group C adolescent (≥12 and <18 years). Methods An observational cohort study was performed in ten pediatric rheumatology centers, including 847 cSLE patients. Results Group A had 39 (4%), B 395 (47%) and C 413 (49%). Median disease duration was significantly higher in group A compared to groups B and C (8.3 (0.1-23.4) vs 6.2 (0-17) vs 3.3 (0-14.6) years, p < 0.0001). The median Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SLICC/ACR-DI) (0 (0-9) vs 0 (0-6) vs 0 (0-7), p = 0.065) was comparable in the three groups. Further analysis of organ/system damage revealed that frequencies of neuropsychiatric (21% vs 10% vs 7%, p = 0.007), skin (10% vs 1% vs 3%, p = 0.002) and peripheral vascular involvements (5% vs 3% vs 0.3%, p = 0.008) were more often observed in group A compared to groups B and C. Frequencies of severe cumulative lupus manifestations such as nephritis, thrombocytopenia, and autoimmune hemolytic anemia were similar in all groups ( p > 0.05). Mortality rate was significantly higher in group A compared to groups B and C (15% vs 10% vs 6%, p = 0.028). Out of 69 deaths, 33/69 (48%) occurred within the first two years after diagnosis. Infections accounted for 54/69 (78%) of the deaths and 38/54 (70%) had concomitant disease activity. Conclusions This large multicenter study provided evidence that early-onset cSLE group had distinct outcomes. This group was characterized by higher mortality rate and neuropsychiatric/vascular/skin organ damage in spite of comparable frequencies of severe cumulative lupus manifestations. We also identified that overall death in cSLE patients was an early event mainly attributed to infection associated with disease activity.
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Affiliation(s)
- S R M Lopes
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - N W S Gormezano
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - R C Gomes
- 2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - N E Aikawa
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil.,2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - R M R Pereira
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - M T Terreri
- 3 Pediatric Rheumatology Unit, Universidade Federal de São Paulo, Brazil
| | - C S Magalhães
- 4 Pediatric Rheumatology Division, São Paulo State University (UNESP) - Faculdade de Medicina de Botucatu, Brazil
| | - J C Ferreira
- 2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - E M Okuda
- 5 Pediatric Rheumatology Unit, Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil
| | - A P Sakamoto
- 3 Pediatric Rheumatology Unit, Universidade Federal de São Paulo, Brazil
| | - A M E Sallum
- 2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - S Appenzeller
- 6 Pediatric Rheumatology Unit, State University of Campinas (UNICAMP), Brazil
| | - V P L Ferriani
- 7 Pediatric Rheumatology Unit, Ribeirão Preto Medical School - University of São Paulo, Brazil
| | - C M Barbosa
- 8 Pediatric Rheumatology Unit, Hospital Infantil Darcy Vargas, Brazil
| | - S Lotufo
- 9 Pediatric Rheumatology Unit, Hospital Menino Jesus, Brazil
| | - A A Jesus
- 2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - L E C Andrade
- 3 Pediatric Rheumatology Unit, Universidade Federal de São Paulo, Brazil
| | - L M A Campos
- 2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - E Bonfá
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - C A Silva
- 1 Division of Rheumatology, Faculdade de Medicina da Universidade de São Paulo, Brazil.,2 Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Brazil
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Ferreira JC, Penha Filho RAC, Andrade LN, Berchieri A, Darini ALC. Detection of chromosomal bla(CTX-M-2) in diverse Escherichia coli isolates from healthy broiler chickens. Clin Microbiol Infect 2014; 20:O623-6. [PMID: 24438126 DOI: 10.1111/1469-0691.12531] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [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: 09/01/2013] [Revised: 01/08/2014] [Accepted: 01/09/2014] [Indexed: 11/27/2022]
Abstract
The rise of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli in food-producing animals is a growing concern for public health. We investigated ESBL producers isolated from broiler chickens in Brazil and characterized 19 CTX-M-2-producing E. coli. The ISCR1 was detected upstream of the chromosome-located gene bla(CTX-M-2), associated with sul-1 type integron structure. CTX-M-2-producing E. coli exhibited different PFGE-types and phylogenetic groups, showing a non-clonal dissemination. The sequence types found (ST93, ST155 and ST2309) have been associated with humans and animals worldwide. Herein, we report the chromosomal location of bla(CTX-M-2) on E. coli, highlighting the risks of multidrug-resistant bacteria in food-producing animals.
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Affiliation(s)
- J C Ferreira
- School of Pharmaceutical Sciences of Ribeirão Preto - São Paulo University (USP), Ribeirão Preto, SP, Brazil
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Claudino JG, Mezêncio B, Soncin R, Ferreira JC, Couto BP, Szmuchrowski LA. Pre vertical jump performance to regulate the training volume. Int J Sports Med 2011; 33:101-7. [PMID: 22187384 DOI: 10.1055/s-0031-1286293] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The purpose of this study was to assess the effect of training load regulation, using the CMJ at the beginning of the session, on the total plyometric training load and the vertical jump performance. 44 males were divided into 4 groups: No Regulation Group (nRG), Regulation Group (RG), Yoked Group (YG) and Control Group (CG). The nRG received 6 weeks of plyometric training, with no adjustment in training load. The RG underwent the same training; however, the training load was adjusted according to the CMJ performance at the beginning of each session. The adjustment made in RG was replicated for the volunteers from the corresponding quartile in the YG, with no consideration given to the YG participant's condition at the beginning of its session. At the end of the training, the CMJ and SJ performance of all of the participants was reassessed. The total training load was significantly lower (p=0.036; ES=0.82) in the RG and the YG (1905±37 jumps) compared to the nRG (1926±0 jumps). The enhancement in vertical jump performance was significant for the groups that underwent the training (p<0.001). Vertical jump performance, performed at the beginning of the session, as a tool to regulate the training load resulted in a decrease of the total training load, without decreasing the long-term effects on vertical jump performance.
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Affiliation(s)
- J G Claudino
- Universidade Federal de Minas Gerais, Laboratory of Load Evaluation, Belo Horizonte, Brazil
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Ginther OJ, Rodrigues BL, Ferreira JC, Araujo RR, Beg MA. Characterisation of pulses of 13,14-dihydro-15-keto-PGF2alpha (PGFM) and relationships between PGFM pulses and luteal blood flow before, during, and after luteolysis in mares. Reprod Fertil Dev 2008; 20:684-93. [PMID: 18671916 DOI: 10.1071/rd08077] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Accepted: 05/26/2008] [Indexed: 11/23/2022] Open
Abstract
Blood collections for characterising 13,14-dihydro-15-keto-PGF2alpha (PGFM) pulses in mares and colour-Doppler examinations for estimating percentage of corpus luteum with blood-flow signals were done hourly for a 24-h session on Day 15 (ovulation = Day 0; n = 13 mares) or during 12-h sessions from Days 12 to 16 (n= 10 mares). Luteolysis was defined as extending from the beginning of a precipitous decrease in progesterone until progesterone was <2 ng mL(-1). Comparisons were made among preluteolysis, luteolysis, and postluteolysis. Greater prostaglandin F2alpha activity (mean PGFM concentration per session) occurred during luteolysis than during preluteolysis and postluteolysis. Statistically-detected PGFM pulses were smaller during preluteolysis with a highly variable interval from the last pulse to the beginning of luteolysis. Either two or three pulses were detected in each 24-h session during luteolysis and postluteolysis, after excluding three of eight sessions with no pulses during postluteolysis. Statistically, 17% of pulses during postluteolysis were prominent outliers. The nadir-to-nadir interval during a pulse (5 h), the peak-to-peak interval between pulses (9 h), and the resulting 4-h gap between pulses were similar during and after luteolysis. The decrease in progesterone encompassed the PGFM pulses, without a detectable fluctuation during a pulse. The percentage of corpus luteum with blood-flow signals did not change during the ascending portion of a PGFM pulse and decreased within 2 or 3 h after the peak, even during preluteolysis. Results indicated that a reported increase in luteal blood flow in heifers during the ascending portion of a PGFM pulse does not occur in mares.
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Affiliation(s)
- O J Ginther
- Eutheria Foundation, Cross Plains, WI 53528, USA.
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Oliveira J, Santos R, Soares-Silva I, Jorge P, Vieira E, Oliveira ME, Moreira A, Coelho T, Ferreira JC, Fonseca MJ, Barbosa C, Prats J, Aríztegui ML, Martins ML, Moreno T, Heinimann K, Barbot C, Pascual-Pascual SI, Cabral A, Fineza I, Santos M, Bronze-da-Rocha E. LAMA2 gene analysis in a cohort of 26 congenital muscular dystrophy patients. Clin Genet 2008; 74:502-12. [DOI: 10.1111/j.1399-0004.2008.01068.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ferreira JC, Gastal EL, Ginther OJ. Uterine blood flow and perfusion in mares with uterine cysts: effect of the size of the cystic area and age. Reproduction 2008; 135:541-50. [DOI: 10.1530/rep-07-0447] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bessa C, Teixeira CAF, Mangas M, Dias A, Sá Miranda MC, Guimarães A, Ferreira JC, Canas N, Cabral P, Ribeiro MG. Two novel CLN5 mutations in a Portuguese patient with vLINCL: insights into molecular mechanisms of CLN5 deficiency. Mol Genet Metab 2006; 89:245-53. [PMID: 16814585 DOI: 10.1016/j.ymgme.2006.04.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 04/09/2006] [Accepted: 04/09/2006] [Indexed: 11/22/2022]
Abstract
The neuronal ceroid-lipofuscinoses are the most common neurodegenerative disorders in childhood characterized by progressive blindness, epilepsy, brain atrophy, and premature death. Based on the age at onset, disease progression and ultrastructural features three classical (infantile, late-infantile, and juvenile) and three variant late-infantile forms are generally distinguished (Finnish variant, Costa Rican variant, and epilepsy with progressive motor retardation). The Finnish variant late-infantile form has been associated with CLN5 gene defects, with only five mutations described to date. We report a patient with vLINCL/CLN5 who represents the first evidence of the disease in the Portuguese population. Mutational screening revealed the previously described missense mutation c.835G>A (D279N) inherited from the mother, and two novel mutations, c.565C>T (Q189X) and c.335G>C (R112P) from paternal and maternal inheritance, respectively. Based on data here reported: (i) the number of possible mutations in CLN5 gene is now 7; (ii) the CLN5 Portuguese case represents the third description of the disease outside northern Europe; (iii) the CLN5/mRNA expression level reduced to 45% supports the existence of one mRNA non-producing allele, further noticeable at the protein level; (iv) Western blotting data using a specific antibody to human CLN5p provided evidence for the presence of four integral membrane isoforms in human fibroblasts; (v) data from differential expression of CLN2, CLN3, and CLN5 suggest down-regulation of CLN3 gene expression in CLN2 and CLN5-deficient human patients and this observation strengths the hypothesis of functional redundancy of the CLN system.
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Affiliation(s)
- C Bessa
- Unidade de Enzimologia, Instituto de Genética Médica Jacinto Magalhães, Porto, Portugal
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Abstract
Selection of dominant follicles in cattle is associated with a deviation in growth rate between the dominant and largest subordinate follicle of a wave (diameter deviation). To determine whether acquisition of ovulatory capacity is temporally associated with diameter deviation, cows were challenged with purified LH at known times after a GnRH-induced LH surge (experiment 1) or at known follicular diameters (experiments 2 and 3). A 4-mg dose of LH induced ovulation in all cows when the largest follicle was > or =12 mm (16 of 16), in 17% (1 of 6) when it was 11 mm, and no ovulation when it was < or =10 mm (0 of 19). To determine the effect of LH dose on ovulatory capacity, follicular dynamics were monitored every 12 h, and cows received either 4 or 24 mg of LH when the largest follicle first achieved 10 mm in diameter (experiment 2). The proportion of cows ovulating was greater (P < 0.05) for the 24-mg (9 of 13; 69.2%) compared with the 4-mg (1 of 13; 7.7%) LH dose. To determine the effect of a higher LH dose on follicles near diameter deviation, follicular dynamics were monitored every 8 h, and cows received 40 mg of LH when the largest follicle first achieved 7.0, 8.5, or 10.0 mm (experiment 3). No cows with a follicle of 7 mm (0 of 9) or 8.5 mm (0 of 9) ovulated, compared with 80% (8 of 10) of cows with 10-mm follicles. Thus, follicles acquired ovulatory capacity at about 10 mm, corresponding to about 1 day after the start of follicular deviation, but they required a greater LH dose to induce ovulation compared with larger follicles. We speculate that acquisition of ovulatory capacity may involve an increased expression of LH receptors on granulosa cells of the dominant follicle and that this change may also be important for further growth of the dominant follicle.
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Affiliation(s)
- R Sartori
- Department of Dairy Science, University of Wisconsin, Madison, Wisconsin 53706, USA
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Dar P, Javed AA, Ben-Yishay M, Ferreira JC, Paterson AD, Gross SJ, Chitayat D, Morrow BE, Nitowsky HM. Potential mapping of corneal dermoids to Xq24-qter. J Med Genet 2001; 38:719-23. [PMID: 11594343 PMCID: PMC1734739 DOI: 10.1136/jmg.38.10.719] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shanske A, Ferreira JC, Leonard JC, Fuller P, Marion RW. Hirschsprung disease in an infant with a contiguous gene syndrome of chromosome 13. Am J Med Genet 2001; 102:231-6. [PMID: 11484199 DOI: 10.1002/ajmg.1451] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Hirschsprung disease is a developmental disorder resulting from the arrest of the craniocaudal migration of enteric neurons from the neural crest along gastrointestinal segments of variable length; see Behrman [Nelson textbook of pediatrics, 1992:954-956]. It is a heterogeneous disorder in which familial cases map to at least three loci whose function is necessary for normal neural crest-derived cell development. Homozygous mutations in the endothelin-B receptor gene (EDNRB) on 13q22 have been identified in humans and mice with Hirschsprung disease type 2 (HSCR2). The auditory pigmentary disorder, Waardenburg-Shah syndrome, comprises Waardenburg syndrome and Hirschsprung disease and has also been mapped to the EDNRB locus. Hirschsprung disease, malrotation, isochromia, a profound sensorineural hearing loss, and several other anomalies were found in an infant with an interstitial deletion of 13q, suggesting the existence of a contiguous gene syndrome involving developmental genes necessary for the normal growth of the neural crest derivatives of the eye, inner ear, and colon. We report on an additional patient with a deletion in 13q and Hirschsprung disease. Congenital anomalies associated with deletions of the distal long arm of chromosome 13 are sufficiently consistent to suggest a clinical syndrome.
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Affiliation(s)
- A Shanske
- Children's Hospital at Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10467, USA.
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Dar P, Sachs GS, Carter SM, Ferreira JC, Nitowsky HM, Gross SJ. Prenatal diagnosis of Bardet-Biedl syndrome by targeted second-trimester sonography. Ultrasound Obstet Gynecol 2001; 17:354-356. [PMID: 11339197 DOI: 10.1046/j.1469-0705.2001.00253.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Bardet-Biedl syndrome (BBS) is an autosomal recessive disorder characterized by mental retardation, obesity, retinal degeneration, polydactyly and syndactyly, diabetes mellitus, hypogenitalism, renal dysplasia and short stature. Definitive molecular diagnosis for BBS is not currently available and counseling of affected families is based on the 25% recurrence risk consistent with autosomal recessive inheritance. Our case presents the first successful use of second trimester targeted sonographic anatomy scanning to prospectively identify a fetus affected with BBS, and indicates that ultrasound can be of critical importance in providing precise as well as timely prenatal diagnosis for families at risk for this serious disorder.
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Affiliation(s)
- P Dar
- Division of Reproductive Genetics, Department of Obstetrics and Gynecology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA.
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22
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da Costa VV, Saraiva RA, de Almeida AC, Rodrigues MR, Nunes LG, Ferreira JC. The effect of nitrous oxide on the inhibition of somatosensory evoked potentials by sevoflurane in children. Anaesthesia 2001; 56:202-7. [PMID: 11251424 DOI: 10.1046/j.1365-2044.2001.01543.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Inhalational anaesthetics inhibit somatosensory evoked potentials. The present study examined the effect of nitrous oxide in anaesthetic mixture with sevoflurane on the somatosensory evoked potential in children. Forty-five patients aged between 6 months and 6 years undergoing club foot surgery were studied to verify the influence of sevoflurane alone (21 patients) and sevoflurane with nitrous oxide (24 patients) on the somatosensory evoked potential. Fractional inspired concentration of nitrous oxide and fractional end-tidal (alveolar) sevoflurane were measured to estimate the multiples and submultiples of the minimal alveolar concentration (age corrected). The somatosensory evoked potential signals were obtained by stimulation of the median nerve. Nitrous oxide (FI = 0.63 +/- 2.5) with sevoflurane caused more reduction in the amplitude of somatosensory evoked potential waves and a greater increase in the latency of somatosensory evoked potential waves in comparison with sevoflurane alone. The results show that it is possible to obtain the inhibition of somatosensory evoked potential with smaller concentrations of sevoflurane, when it is used with nitrous oxide.
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Affiliation(s)
- V V da Costa
- Department of Clinical Neurophysiology, SARAH Hospital of Brasilia, SMHS Quadra 501 Conjunto: A, 70330-150 Brasilia DF, Brazil
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Schon EA, Kim SH, Ferreira JC, Magalhães P, Grace M, Warburton D, Gross SJ. Chromosomal non-disjunction in human oocytes: is there a mitochondrial connection? Hum Reprod 2000; 15 Suppl 2:160-72. [PMID: 11041522 DOI: 10.1093/humrep/15.suppl_2.160] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The frequency of chromosome abnormalities due to non-disjunction of maternal chromosomes during meiosis is a function of age, with a sharp increase in the slope of the trisomy-age curve between the ages of 30 and 40 years. The basis of this increase, which is a major cause of birth defects, is unknown at present. In recent years, mutations in mitochondrial (mt) DNA have been associated with a growing number of disorders, including those associated with spontaneous deletions of mtDNA (deltamt DNAs). Intriguingly, these pathogenic deltamtDNAs, which are present at extremely high levels in certain patients, are also present at extremely low levels (detectable only by polymerase chain reaction) in normal individuals. The proportion of such deltamtDNAs in normal muscle is a function of age; the shape of this curve is exponential, with the accelerating part of the curve beginning at approximately 30-40 years. We postulate that, as well as muscle and brain, a similar time-dependent accumulation of deltamtDNAs also occurs in normal oocytes. Since deltamtDNAs are functionally inactive, an accumulation of such aberrant genomes could eventually compromise ATP-dependent energy-utilization in these cells. Furthermore, these deficiencies would also affect the function of the somatic follicular cells that surround, and secrete important paracrine factors to, the oocyte. If there is indeed an age-associated relationship between deltamtDNAs and oocyte age, perhaps errors in meiosis (which is almost certainly an energy, and ATP, dependent process) are related to mutations in mtDNA (primarily deletions, but perhaps point mutations as well) in oocytes and/or the surrounding somatic cells, which result in deficiencies in both mitochondrial function in general and oxidative energy metabolism in particular. This hypothesis would explain many of the non-Mendelian features associated with maternal age-related trisomies, e.g. Down's syndrome.
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Affiliation(s)
- E A Schon
- Department of Neurology, Columbia University, New York, NY 10032, USA.
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24
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Abstract
Maltose transport and maltase activities were inactivated during sporulation of a MAL constitutive yeast strain harboring different MAL loci. Both activities were reduced to almost zero after 5 h of incubation in sporulation medium. The inactivation of maltase and maltose permease seems to be related to optimal sporulation conditions such as a suitable supply of oxygen and cell concentration in the sporulating cultures, and occurs in the fully derepressed conditions of incubation in the sporulation acetate medium. The inactivation of maltase and maltose permease under sporulation conditions in MAL constitutive strains suggests an alternative mechanism for the regulation of the MAL gene expression during the sporulation process.
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Affiliation(s)
- J C Ferreira
- Departamento de Bioquímica, Universidade Federal do Rio de Janeiro, Brasil
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Ferreira JC, Carter SM, Bernstein PS, Jabs EW, Glickstein JS, Marion RW, Baergen RN, Gross SJ. Second-trimester molecular prenatal diagnosis of sporadic Apert syndrome following suspicious ultrasound findings. Ultrasound Obstet Gynecol 1999; 14:426-430. [PMID: 10658283 DOI: 10.1046/j.1469-0705.1999.14060426.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Apert syndrome, an autosomal dominant disorder characterized by craniosynostosis, mid-facial malformations, symmetric bony syndactyly of hands and feet, and varying degrees of mental retardation, is most frequently caused by a de novo mutation. Two missense mutations in the fibroblast growth factor receptor 2 (FGFR2) gene have been found to account for the disorder in approximately 98% of affected patients. Seven cases of prenatal ultrasound diagnosis have been reported. Although one earlier diagnosis has been made in a familial case, sporadic cases have not been definitively diagnosed until the third trimester when craniosynostosis is usually detected. We report a second-trimester molecular diagnosis of a sporadic case, based on the ultrasound observation of fetal 'mitten hands' and craniosynostosis. We discuss the approach to such ultrasound features, given the current availability of molecular diagnosis for Apert syndrome.
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Affiliation(s)
- J C Ferreira
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, USA
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Abstract
Daily ultrasound examinations were conducted from Days 10 to 60 (ovulation = Day 0) of pregnancy to monitor the conceptus in jennies (n = 12). The embryonic vesicle was first detected on Day 11.5 +/- 0.9 (mean +/- SD; range 10 to 13 d) and was mobile until movement ceased (fixation) on Day 15.5 +/- 1.4 (range, 13 to 18 d). The vesicle was spherical from Days 10 to 18 (mean growth rate, 3.2 mm/d), non spherical (irregular) with a reduced growth rate (0.5 mm/d) from Days 19 to 29, and then grew at a moderate rate (1.6 mm/d) up to Day 46. On average, detection of the embryo proper (consistently located on the ventral aspect of the yolk sac) and embryonic heartbeat were Days 20.7 +/- 1.2 and 23.5 +/- 1.3, respectively. Formation of the allantoic sac was first detected on Day 24.4 +/- 1.7 and was complete on Day 36.8 +/- 1.6. Descent of the fetus (and formation of the umbilical cord) began on Day 37.9 +/- 1.7 and was complete on Day 44.1 +/- 2.1. Crown-rump length averaged 3.7, 15.4, 22.7, 37.5 and 59.6 mm on Days 20, 30, 40, 50 and 60, respectively. In general, morphologic features and dates of occurrence were similar to those reported previously in the mare.
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Affiliation(s)
- C Meira
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science-UNESP, Botucatu, SP, Brazil
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Abstract
The objectives of this study were to determine ovarian activity (with ultrasound) and plasma concentrations of progesterone and estradiol during pregnancy in jennies. There was considerable ovarian activity during the second month of pregnancy. Secondary corpora lutea (total of 2 to 7 per jenny) were formed (mainly by luteinization) starting on Day 41.8 +/- 1.0 (range Days 38 to 46; ovulation = Day 0). The echogenicity of the primary and secondary corpora lutea gradually decreased during pregnancy. Plasma progesterone concentrations increased between Days 0 and 10 (0.9 and 19.9 ng/mL, respectively), gradually decreased to Day 30 (12.1 ng/mL), increased between Days 30 and 40 (plateau, at approximately 17 ng/mL), gradually declined from Days 110 to 160 (nadir of approximately 6 ng/mL), and remained nearly constant until increasing again just before parturition. Plasma estradiol concentrations increased gradually from Day 65, peaked (1.2 ng/mL) on Day 165 (> or = 1 ng/mL on Days 150 to 210), and decreased thereafter, with very low concentrations during the last 20 d before parturition. Ovarian function and hormone profiles were generally similar to those previously reported during pregnancy in mares.
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Affiliation(s)
- C Meira
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science-UNESP, Botucatu, SP, Brazil
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Ferreira JC, Meira C, Papa FO, Landin e Alvarenga FC, Alvarenga MA, Buratini J. Cryopreservation of equine embryos with glycerol plus sucrose and glycerol plus 1,2-propanediol. Equine Vet J 1997:88-93. [PMID: 9593537 DOI: 10.1111/j.2042-3306.1997.tb05109.x] [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] [Indexed: 11/26/2022]
Abstract
Six or 7-day-old equine embryos were divided into 4 groups; Group 1, n = 15, Day 7 embryos destined for immediate transfer; Group 2, n = 15, Day 6 embryos destined for deep-freezing with glycerol plus sucrose as cryoprotectant; Group 3, n = 10, Day 6 embryos destined for deep-freezing with glycerol plus 1,2-propanediol as cryoprotectant and Group 4, n = 3, fresh embryos destined for ultrastructural analysis. All the frozen/thawed embryos were transferred to recipient mares, except 3 embryos in Group 3 that were subjected to ultrastructural analysis. After thawing the cryoprotectants were removed by successive dilutions in PBS + 15% v:v fetal calf serum (FCS) containing decreasing concentrations of the cryoprotectants. Pregnancy was diagnosed ultrasonographically in 53.3%, 13.3% and 0% of the mares in Groups 1, 2 and 3 respectively. Ultrastructural analysis showed differences between frozen/thawed and fresh embryos. In the former, embryonic cells were deformed and showed dilation of the intercellular and perivitelline spaces, a decrease of desmosome number in the junctional complexes, few microvilli on the apical surface of the trophectoderm and an almost total absence of pinocytotic vesicles. Most of the mitochondria showed regions containing dilation and irregularities on the cristae, which appeared electron-dense. The results obtained with Groups 2 and 3 embryos showed that the cryoprotectants employed were not effective in protecting the embryos against damage during freezing and thawing. Indeed, the ultrastructural changes observed in the Group 3 embryos explained the absence of any established pregnancies in this group of mares.
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Affiliation(s)
- J C Ferreira
- Department of Animal Reproduction and Veterinary Radiology, FMVZ-UNESP, Botucatu S.P. CEP, Brazil
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29
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Ferreira JC, Thevelein JM, Hohmann S, Paschoalin VM, Trugo LC, Panek AD. Trehalose accumulation in mutants of Saccharomyces cerevisiae deleted in the UDPG-dependent trehalose synthase-phosphatase complex. Biochim Biophys Acta 1997; 1335:40-50. [PMID: 9133641 DOI: 10.1016/s0304-4165(96)00127-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In Saccharomyces cerevisiae, trehalose-6-phosphate synthase converts uridine-5'-diphosphoglucose and glucose 6-phosphate to trehalose 6-phosphate which is dephosphorylated by trehalose 6-phosphatase to trehalose. These two steps take place within a complex consisting of three proteins: trehalose-6-phosphate synthase encoded by the GGS1/TPS1 (= FDP1, = BYP1, = CIF1) gene, trehalose 6-phosphatase encoded by the TPS2 gene and by a third protein encoded by both the TSL1 and TPS3 genes. Using three different methods for trehalose determination, we observed trehalose accumulation in ggs1/tps1delta, tps2delta and tsl1delta mutants, and in the double mutants ggs1/tps1delta/tps2delta and also in ggs1/tps1delta deleted mutants suppressed for growth on glucose. All these mutants harbor MAL genes. Trehalose synthesis in these mutants is probably performed by the adenosine-5'-diphosphoglucose-dependent trehalose synthase, (ADPG-dependent trehalose synthase) which was detected in all strains tested. It is noteworthy that trehalose accumulation in these mutants was detected only in cells grown on weakly repressive carbon sources such as maltose and galactose or during the transition phase from fermentable to non-fermentable growth on glucose. alpha-Glucosidase activity was always present in high amounts. We also describe an adenosine-diphosphoglucosepyrophosphorylase (ADPG-pyrophosphorylase) activity in Saccharomyces cerevisiae which increased concomitantly with the accumulation of trehalose during the transition phase from fermentable to non-fermentable growth in MAL-constitutive (MAL2-8c) strains. The same was observed when MAL-induced (MAL1) strains were compared during growth on glucose and maltose. These results led us to conclude that maltose-induced trehalose accumulation is independent of the UDPG-dependent trehalose-6-phosphate synthase/phosphatase complex; that the ADPG-dependent trehalose synthase is responsible for maltose-induced trehalose accumulation probably by forming a complex with a specific trehalose-6-phosphatase activity and that ADPG synthesis is activated during trehalose accumulation under these conditions.
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Affiliation(s)
- J C Ferreira
- Departamento de Bioquímica, Instituto de Quimica, Universidade Federaldo Rio de Janeiro, Brazil
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30
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Martins M, Carvalho M, Prudêncio A, Ferreira JC, Seabra-Fabião A. [A clinical case of restrictive myocarditis due to senile-type amyloidosis]. Rev Port Cardiol 1997; 16:383-9, 352. [PMID: 9254127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We describe the case of a patient with restrictive cardiomyopathy due to primary amyloidosis associated with aging. The patient had a complex myocardial function. A brief review is made of the etiology, diagnostic procedures and therapy of this clinical entity, which is an important rare cause of cardiac death in elderly patients.
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Affiliation(s)
- M Martins
- Serviço de Cardiologia, Hospital Condes de Castro Guimarães, Cascais
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31
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Ferreira JC, Silva JT, Panek AD. A regulatory role for TSL1 on trehalose synthase activity. Biochem Mol Biol Int 1996; 38:259-65. [PMID: 8850521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
UDPG-dependent trehalose synthase activity was determined during growth on glucose medium in controls and yeast strains having deletions on components of the trehalose phosphate synthase complex. Deletion of TPS3 produced any alteration. In contrast, strains harboring deletions tsl1 delta or tsl1 delta/tps3 delta showed no activation of enzyme after glucose exhaustion. To evaluate the role played by TPS3 and TSL1 on trehalose synthase activity we have determined the effect of the addition of a cell free extract from a strain expressing only TPS3 and TSL1 to extracts of strains lacking TSL1, TPS3 or both. No effect was observed on trehalose synthase activity from tps3 delta mutant. The addition of the same extract to trehalose synthase from tsl1 delta or tsl1 delta/tps3 delta strains showed a two-fold activating effect, indicating that TPS3 and TSL1 regulated differently the UDPG-dependent trehalose synthase activity.
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Affiliation(s)
- J C Ferreira
- Depto. de Bioquímica, Universidade Federal do Rio de Janeiro, Brasil
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Ferreira JC, Ramos RR, Gomes Filho WR, Simomoto PL, Andrews JDM. [Indications of exploration and repair of the orbital floor in fractures of the maxillozygomatic complex]. Rev Assoc Med Bras (1992) 1994; 40:207-10. [PMID: 7787873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
UNLABELLED Patients with orbital fractures may develop late complications like enophthalmos, orbital dystopia or diplopia, as a result of untreated orbital floor lesions, with herniation of orbital fat. Clinical and radiological findings are not enough for diagnostic and indication of orbital floor repair. PURPOSE To evaluate the indication of repair of the orbital floor, during the surgical treatment of maxillozygomatic or zygomatic-maxillary compound fractures, by means of systemic exploration and to compare clinical with surgical findings. METHODS 112 patients with unilateral zygomatic-maxillary compound fracture were submitted to exploration of the orbital floor, during the surgical treatment of the fracture. Open reduction and rigid internal fixation was performed with steel wire or miniplates. An autogenous conchal cartilage graft was used to repair the floor lesion, when there was bone loss of the inferior orbital wall and periorbita discontinuity, with fat herniation. RESULTS The repair of the orbital floor was indicated in 46.4% of the patients. Early diplopia (before surgery) was observed in 26.6% and enophthalmos in 3.30% of the cases. Among patients with early diplopia, 60% needed repair, while 36.6% of the patients without early diplopia received cartilage graft. No important complications was observed. CONCLUSION Orbital floor exploration is a complementary maneuver for the treatment of zygomatic-maxillary compound fractures that permits the precise diagnostic of the lesion and the correct indication of repair.
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Affiliation(s)
- J C Ferreira
- Disciplina de Cirurgia Plástica da Escola Paulista e Medicina, Säo Paulo
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Ferreira JC, Panek AD. Trehalose metabolism during sporulation in Saccharomyces cerevisiae. Biochem Mol Biol Int 1993; 31:1081-90. [PMID: 8193591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
S. cerevisiae has at least two enzymes for trehalose synthesis. In this paper we report some characteristics of the ADPG-dependent trehalose-6-phosphate synthase. As opposed to the UDPG-dependent enzyme, the ADPG-dependent activity did not respond to a glucose signal nor to a heat shock. Mutant strains, deficient in the UDPG-dependent enzyme but possessing the ADPG-dependent activity, did not accumulate trehalose either during growth or during sporulation. A diploid, homozygous for the deficiency in the UDPG-dependent synthase activity, was constructed. During sporulation the ADPG-dependent activity remained constant. However, when mutant spores were subjected to a glucose signal, trehalose was accumulated to the same extent as in control spores.
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Affiliation(s)
- J C Ferreira
- Depto. de Bioquimica, Universidade Federal do Rio de Janeiro, Brasil
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Abstract
A retrospective study of the Chevron osteotomy procedure for hallux valgus was carried out on 112 patients (168 feet) with an average age of 39.7 years (range 19 to 61 years). The average follow-up was 4.4 years (range 13 months to 7.5 years). The preoperative diagnosis was symptomatic hallux valgus. The average preoperative intermetatarsal 1-2 angle was 15.5 degrees (range 11 degrees to 18 degrees) and the hallux valgus angle was 28.1 degrees (range 21 degrees to 42 degrees). The operation was effective in improving symptoms, cosmesis, and function and in decreasing the deformity.
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Affiliation(s)
- W R Rossi
- Division of Orthopaedic Surgery, Catholic University of Campinas, SP, Brazil
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35
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Brasil-Neto JP, Kouyoumdjian JA, Kouyoumdjian NC, Fernandez RN, Ferreira JC. [Multimodal evoked potentials: standardized study of 51 individuals in a Brazilian population]. Arq Neuropsiquiatr 1989; 47:423-9. [PMID: 2634383 DOI: 10.1590/s0004-282x1989000400007] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The authors report the results of normative studies of pattern-shift visual, brainstem auditory and somatosensory evoked potentials of upper and lower limbs carried out in a sample of 51 normal subjects of a Brazilian population. Normal values were thus established for the main components of each modality of evoked potentials, with special emphasis on those having more clinical utility. The results were compared to the data available in the literature.
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Affiliation(s)
- J P Brasil-Neto
- Setor de Neurofisiologia Clínica, Hospital de Medicina do Aparelho Locomotor, SARAH, Brasília DF, Brasil
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Abstract
An automated system, incorporating the ANOPS-101 mini-computer, has been used to analyse the EMG. The vastus medialis (VM) and biceps brachii (BB) muscles were studied in 28 controls, 16 patients with myopathies, and in 26 patients with denervating disorders. For each muscle mean values were computed for the durations and numbers of phases of muscle action potentials; the mean density and amplitude of the deflections in the interference pattern were also measured. A higher incidence of abnormalities could be detected in myopathic than in neuropathic disorders; for both conditions the incidence was significantly greater in BB than in VM. For the diagnosis of denervation the most useful measurement was that of potential duration; for the detection of myopathies amplitude determinations were also very useful. The present results have been compared with those of other published studies in which automatic EMG analysis has been employed.
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37
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Zaterka S, Ferreira JC, Neves DP. [Cimetidine in the treatment of duodenal ulcer. Double-blind study]. Rev Hosp Clin Fac Med Sao Paulo 1978; 33:5-11. [PMID: 351775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Azulay RD, Ferreira JC. [Need of extracurricular activities in medical studies. Results of the survey made among students of the Faculdade de Medicina da Universidade Federal Fluminense in 1966]. Hospital (Rio J) 1967; 72:1405-23. [PMID: 5307816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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