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Siqueira JS, Garcia JL, Ferron AJT, Moreto F, Sormani LE, Costa MR, Palacio TLN, Nai GA, Aldini G, Francisqueti-Ferron FV, Correa CR, D'Amato A. Proteomic study of gamma-oryzanol preventive effect on a diet-induced non-alcoholic fatty liver disease model. J Nutr Biochem 2024; 127:109607. [PMID: 38432453 DOI: 10.1016/j.jnutbio.2024.109607] [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: 12/11/2023] [Revised: 02/11/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease associated with obesity and diabetes prevalence. The use of natural compounds has become an attractive approach to prevent NAFLD and its progression. Gamma-oryzanol (Orz) is a natural compound whose beneficial effects on chronic metabolic diseases have been reported. Therefore, we aimed to investigate the preventive effect of Orz on the hepatic proteome in a diet induced NAFLD model. Wistar rats were randomly distributed into three experimental groups (n=6/group) according to the diet received for 30 weeks: Control group, high sugar-fat (HSF) group, and HSF+Orz group. The isolated Orz was added to the chow at the dose of 0.5% (w/w). We evaluated the nutritional profile, characterized the presence of steatosis through histological analysis, triglyceride content in liver tissue and hepatic inflammation. Next, we performed label-free quantitative proteomics of hepatic tissue. Network analysis was performed to describe involved protein pathways. NAFLD induction was characterized by the presence of hepatic steatosis. Orz prevented lipid accumulation. The compound prevented alterations of the hepatic proteome, highlighted by the modulation of lipid metabolism, inflammation, oxidative stress, xenobiotic metabolism, and the sirtuin signaling pathway. It was possible to identify key altered pathways of NAFLD pathophysiology modulated by Orz which may provide insights into NAFLD treatment targets.
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Affiliation(s)
| | | | | | - Fernando Moreto
- Botucatu Medical School, São Paulo State University (Unesp), Botucatu, Brazil.
| | | | | | | | - Gisele Alborghetti Nai
- Department of Pathology, Medical School, Universidade do Oeste Paulista (UNOESTE), Presidente Prudente, Brazil.
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
| | | | | | - Alfonsina D'Amato
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
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Nobre DAC, Silva MB, Macedo WR, Costa MR, Napoleão RL. Turmeric powder: biostimulator from expired lettuce seeds? BRAZ J BIOL 2023; 82:e265809. [PMID: 36629541 DOI: 10.1590/1519-6984.265809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/29/2022] [Indexed: 01/11/2023] Open
Affiliation(s)
- D A C Nobre
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Laboratório de Processamento de Produtos de Origem Vegetal, Diamantina, MG, Brasil
| | - M B Silva
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Laboratório de Processamento de Produtos de Origem Vegetal, Diamantina, MG, Brasil
| | - W R Macedo
- Universidade Federal de Viçosa - UFV, Instituto de Ciências Agrárias, Laboratório de Fisiologia e Metabolismo da Produção Vegetal, Campus de Rio Paranaíba, Rio Paranaíba, MG, Brasil
| | - M R Costa
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Laboratório de Processamento de Produtos de Origem Vegetal, Diamantina, MG, Brasil
| | - R L Napoleão
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Laboratório de Processamento de Produtos de Origem Vegetal, Diamantina, MG, Brasil
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Maciel JC, Costa MR, Ferreira EA, Oliveira IT, Alencar BTB, Zanuncio JC, Santos JB. Puccinia oxalidis Dietel & Ellis (1895): first report controlling oxalis latifolia kunth (Oxalidaceae) in systems of direct planting. BRAZ J BIOL 2021; 84:e249087. [PMID: 34932673 DOI: 10.1590/1519-6984.249087] [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: 02/24/2021] [Accepted: 09/06/2021] [Indexed: 11/22/2022] Open
Affiliation(s)
- J C Maciel
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - M R Costa
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - E A Ferreira
- Universidade Federal de Minas Gerais - UFMG, Instituto de Ciências Agrárias, Montes Claros, MG, Brasil
| | - I T Oliveira
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - B T B Alencar
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Engenharia Florestal, Diamantina, MG, Brasil
| | - J C Zanuncio
- Universidade Federal de Viçosa - UFV, Departamento de Entomologia, Viçosa, MG, Brasil
| | - J B Santos
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
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Cruz VMRR, Costa MR, Schaffel R. ANÁLISE DO PERFIL DOS ESTUDOS DE CUSTO-EFETIVIDADE EM LEUCEMIA, LINFOMA OU MIELOMA PUBLICADOS NOS ÚLTIMOS CINCO ANOS. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.856] [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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Nassau BRRM, Mascarenhas PSC, Guimarães AG, Feitosa FM, Ferreira HM, Castro BMC, Zanuncio JC, Costa MR, Nietsche S. Inheritance of seedlessness and the molecular characterization of the INO gene in Annonaceae. BRAZ J BIOL 2021; 83:e246455. [PMID: 34161463 DOI: 10.1590/1519-6984.246455] [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: 12/10/2020] [Accepted: 02/04/2021] [Indexed: 11/22/2022] Open
Abstract
The inheritance of the seedless fruit characteristic of Annona squamosa has not yet been explained. Molecular techniques may aid breeding programs, mainly in the assisted selection of the target gene. The INO gene may be related to seed development in these fruits. The objective of the present paper was to investigate the inheritance of seedlessness in the 'Brazilian seedless' sugar apple and INO gene conservation in Annona squamosa and Annona cherimola x Annona squamosa genotypes by assessing their homology with the INO database genes. The F1 generation was obtained by crossing the mutant 'Brazilian seedless' (male genitor) (P1) with the wild-type A. squamosa with seeds (M1 and M2, female genitors). The INO gene was studied in mutant and wild-type A. squamosa (P1, M1, M2 and M3) and in the Gefner atemoya (A. cherimola x A. squamosa) (M4) cultivar. The DNA was extracted from young leaves, and four sets of specific primers flanking the INO gene were amplified. The seedless characteristic was identified as stenospermatic in the fruits of parental P1, suggesting monogenic inheritance with complete dominance. High sequence similarity of the INO gene amplifications in the sugar apple accessions (M1, M2, M3) and the atemoya cultivar Gefner (M4) reinforces the hypothesis of their conservation.
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Affiliation(s)
- B R R M Nassau
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - P S C Mascarenhas
- Universidade Estadual de Montes Claros - UNIMONTES, Departamento de Ciências Agrárias, Janaúba, MG, Brasil
| | - A G Guimarães
- Universidade Federal da Grande Dourados - UFGD, Departamento de Agronomia, Dourados, MS, Brasil
| | - F M Feitosa
- Universidade Federal de Viçosa - UFV, Instituto de Biotecnologia Aplicada à Agropecuária - BIOAGRO, Departamento de Entomologia, Viçosa, MG, Brasil
| | - H M Ferreira
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - B M C Castro
- Universidade Federal de Viçosa - UFV, Instituto de Biotecnologia Aplicada à Agropecuária - BIOAGRO, Departamento de Entomologia, Viçosa, MG, Brasil
| | - J C Zanuncio
- Universidade Federal de Viçosa - UFV, Instituto de Biotecnologia Aplicada à Agropecuária - BIOAGRO, Departamento de Entomologia, Viçosa, MG, Brasil
| | - M R Costa
- Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia, Diamantina, MG, Brasil
| | - S Nietsche
- Universidade Federal de Minas Gerais - UFMG, Instituto de Ciências Agrárias, Montes Claros, MG, Brasil
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Silva CS, Silva Filho E, Matos AS, Schierholt AS, Costa MR, Marques LC, Costa JS, Sales RL, Figueiró MR, Marques JRF. Polymorphisms in the DGAT1 gene in buffaloes (Bubalus bubalis) in the Amazon. Genet Mol Res 2016; 15:gmr8720. [PMID: 27706739 DOI: 10.4238/gmr.15038720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Water buffaloes (Bubalus bubalis) are quite well adapted to climatic conditions in the Amazon, and in this biome, they are noted for the considerable amount of meat and milk they produce and how hard they are able to work. Because of a lack of research dedicated to improving the rearing of buffaloes in the Amazon, the objective of this study was to genetically characterize the Murrah and Mediterranean breeds, as well as a mixed-breed population, based on polymorphisms in the diacylglycerol O-acyltransferase 1 gene (DGAT1), and associate the genotypes with milk production. By using the polymerase chain reaction-single-strand conformation polymorphism technique, the alleles A (0.79), B (0.20), and D (0.01) were found in the Murrah breed. In the Mediterranean and mixed-breed buffaloes, we found alleles A (0.69) and (0.77) and B (0.31) and (0.23), respectively. The Murrah breed had the genotypes AA (0.63), AB (0.29), BB (0.05), and AD (0.03), and the Mediterranean and mixed-breed buffaloes had the genotypes AA (0.44) and (0.61), AB (0.50) and (0.31), and BB (0.06) and (0.08), respectively. For the Murrah, Mediterranean, and mixed-breed buffaloes, respectively, the expected heterozygosity values were 0.34, 0.43, and 0.35, the inbreeding coefficients were 0.78, -0.15, and 0.17, and the Hardy-Weinberg probabilities were 0.70, 0.67, and 0.52. The genotypes evaluated did not have an effect on milk production; however, the single nucleotide polymorphisms can be used in studies on genetic variability.
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Affiliation(s)
- C S Silva
- Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Pará, Belém, PA, Brasil
| | - E Silva Filho
- Universidade Federal Rural da Amazônia, Belém, PA, Brasil
| | - A S Matos
- Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Pará, Belém, PA, Brasil
| | - A S Schierholt
- Universidade Federal Rural da Amazônia, Belém, PA, Brasil
| | - M R Costa
- Empresa Brasileira de Pesquisa Agropecuária-Amazônia Oriental, Belém, PA, Brasil
| | | | - J S Costa
- Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Pará, Belém, PA, Brasil
| | - R L Sales
- Empresa Brasileira de Pesquisa Agropecuária-Amazônia Oriental, Belém, PA, Brasil
| | - M R Figueiró
- Empresa Brasileira de Pesquisa Agropecuária-Amazônia Oriental, Belém, PA, Brasil
| | - J R F Marques
- Empresa Brasileira de Pesquisa Agropecuária-Amazônia Oriental, Belém, PA, Brasil
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Santos RRM, Cavallari MM, Pimenta MAS, Abreu AG, Costa MR, Guedes ML. Population genetic structure of Attalea vitrivir Zona (Arecaceae) in fragmented areas of southeast Brazil. Genet Mol Res 2015; 14:6472-81. [PMID: 26125852 DOI: 10.4238/2015.june.11.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Attalea vitrivir Zona (synonym Orbignya oleifera) is one of the six species of Arecaceae known as "babassu". This species is used to make cosmetics, food, and detergents due to the high concentration of oil in the seeds. It is found only in fragmented areas of southern Bahia State and northern Minas Gerais State, southeast Brazil, and this fragmentation has affected both its ecological and genetic characteristics. We evaluated the genetic diversity and population genetic structure of A. vitrivir in six areas of two different regions at the extremes of its geographical range, in order to gain a better understanding of the factors that affect the distribution and partitioning of its diversity. Nine inter simple sequence repeat (ISSR) markers amplified 74 polymorphic bands, resulting in large diversity values (Shannon diversity index, 0.37-0.47; intrapopulation genetic diversity, 0.25-0.34). Analysis of molecular variance (AMOVA) revealed considerable differentiation between sampling sites (30.03%) and regions (12.08%), although most of the diversity was observed within sampling sites (69%). Further differentiation between sampling sites was noted more in the northern region than in the southern region, highlighting the genetic connectivity between the sampling sites within Rio Pandeiros Environmental Protection Area (southern region). The identification of two distinct genetic clusters (K = 2) corresponded to the northern and southern regions, and corroborated the AMOVA results. We suggest that the northern area, outside Rio Pandeiros Environmental Protection Area, must be included in future management plans for this species.
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Affiliation(s)
- R R M Santos
- Laboratório de Genética da Conservação, Universidade Estadual de Montes Claros-Unimontes, Campus Universitário Professor Darcy Ribeiro, Centro de Ciências Biológicas e da Saúde, Brasília, DF, Brasil
| | - M M Cavallari
- Empresa Brasileira de Pesquisa Agropecuária-Embrapa Cocais, São Luís, MA, Brasil
| | - M A S Pimenta
- Laboratório de Genética da Conservação, Universidade Estadual de Montes Claros-Unimontes, Campus Universitário Professor Darcy Ribeiro, Centro de Ciências Biológicas e da Saúde, Brasília, DF, Brasil
| | - A G Abreu
- Empresa Brasileira de Pesquisa Agropecuária-Embrapa Arroz e Feijão, Santo Antônio de Goiás, GO, Brasil
| | - M R Costa
- Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brasil
| | - M L Guedes
- Laboratório de Genética da Conservação, Universidade Estadual de Montes Claros-Unimontes, Campus Universitário Professor Darcy Ribeiro, Centro de Ciências Biológicas e da Saúde, Brasília, DF, Brasil
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Di Donato P, Giulini NA, Bacchi Modena A, Cicchetti G, Comitini G, Gentile G, Cristiani P, Careccia A, Esposito E, Gualdi F, Golinelli S, Bergamini E, Masellis G, Rastelli S, Gigli C, Elia A, Marchesoni D, Sticotti F, Del Frate G, Zompicchiatti C, Marino L, Costa MR, Pinto P, Dodero D, Storace A, Spinelli G, Quaranta S, Bossi CM, Ollago A, Omodei U, Vaccari M, Luerti M, Repetti F, Zandonini G, Raspagliesi F, Dolci F, Gambarino G, De Pasquale B, Polizzotti G, Borsellino G, Alpinelli P, Natale N, Colombo D, Belloni C, Viani A, Cecchini G, Vinci GW, Samaja BA, Pasinetti E, Penotti M, Ognissanti F, Pesando P, Malanetto C, Gallo M, Dolfin G, Tartaglino P, Mossotto D, Pistoni A, Tarani A, Rattazzi PD, Rossaro D, Campanella M, Arisi E, Gamper M, Salvatores D, Bocchin E, Stellin G, Meli G, Azzini V, Tirozzi F, Buoso G, Fraioli R, Marsoni V, Cetera C, Sposetti R, Candiotto E, Pignalosa R, Del Pup L, Bellati U, Angeloni C, Buonerba M, Garzarelli S, Santilli C, Mucci M, Di Nisio Q, Cappa F, Pierangeli I, Cordone A, Falasca L, Ferrante D, Serra GB, Cirese E, Todaro PA, Romanini C, Spagnuolo L, Lanzone A, Donadio C, Fabiani M, Baldaccini E, Votano S, Bellardini P, Favale W, Monti V, Bonomo A, Boninfante CE, Pietrobattista P, Massacesi L, Donini G, Del Savio F, Palombi L, Procaccioli P, Romani A, Romagnoli G, Genazzani AR, Gambacciani M, Scarselli G, Curiel P, De Leo V, Melani A, Levi D'Ancona V, Giarrè G, Di Gioia E, Ceccarelli P, Massi GB, Cosci S, Gacci G, Cascianini A, Donati Sarti C, Bircolotti S, Pupita P, Mincigrucci M, Spadafora A, Santeufemia G, Marongiu G, Lai GR, Lai R, Dessole S, D'Andrea SA, Chiantera A, Arienzo R, Pastore AR, Tamburrino A, Cardone A, Colacurci N, Izzo S, Tesauro R, Pascarella A, De Silvio MG, Di Prisco L, Lauda N, Sirimarco F, Agrimi C, Casarella G, Senatore G, Ronzini S, Ruccia G, De Carlo G, Pisaturo G, Carlomagno F, Fasolino A, Fiorillo F, Sorrentino R, Ercolano VB, Panariello S, Brun A, Tropea P, Stigliano CM, Amoroso A, Vadalà P, Coco A, Galati G, Barese G, Masciari G, Pirillo P, Gioffrè T, Mastrantonio P, Cardamone A, D'Angelo N, Valentino G, Barretta R, Ferraro G, Ferruccio C, Agostinelli D, Corrado G, Scopelliti A, Schonauer S, Trojano V, Bongiovanni F, Tinelli F, Poddi ER, Scarpello F, Colonna L, Fischetti G, Doria R, Trombetta G, Cocca EB, D'Amore A, Di Masi M, Liguori R, Dimaggio A, Laneve MR, Maolo MC, Gravina G, Nacci G, Nocera F, Lupo A, Giannola C, Graziano R, Mezzatesta M, Vegna G, Giannone G, Palumbo G, Cancellieri F, Mondo A, Cordopatri A, Carrubba M, Mazzola V, Cincotta L, D'Asta S, Bono A, Li Calsi L, Cavallaro Nigro S, Schilirò S, Repici A, Gullo D, Orlando A, Specchiale F, Papotto A, Giulia FV, Adige TA, D'Aosta V, Massacesi A, Chiantera A, Donati Sarti C, De Aloysio P, Omodei U, Ognissanti F, Campagnoli C, Penotti M, Gambacciani A, Graziottin A, Baldi C, Colacurci N, Corrado Tonti G, Parazzini F, Chatenoud L. Risk factors for type 2 diabetes in women attending menopause clinics in Italy: a cross-sectional study. Climacteric 2009; 8:287-93. [PMID: 16397927 DOI: 10.1080/13697130500196866] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To analyze risk factors for type 2 diabetes among women attending menopause clinics in Italy for counselling about the menopause. SUBJECTS Women attending a network of first-level outpatient menopause clinics in Italy for general counselling about menopause or treatment of menopausal symptoms. METHODS Cross-sectional study with no exclusion criteria. Type 2 diabetes was defined according to National Diabetes Data Groups Indications and the fasting blood glucose at an oral glucose tolerance test within the previous year. RESULTS Out of the 44 694 considered in this analysis, 808 had a diagnosis of diabetes type 2 (1.8%). In comparison with women aged < 50 years, the multivariate odds ratios (OR) of type 2 diabetes were 1.31 (95% confidence interval (CI), 0.99-1.74) for women aged 50-52 years, 1.66 (95% CI, 1.27-2.17) at 53-56 years and 2.84 (95% CI, 2.20-3.67) in women aged > or = 57 years. Type 2 diabetes was less frequently reported in more educated women (OR high school/university vs. primary school = 0.44 (95% CI, 0.36-0.55)). Being overweight was associated with an increased risk of type 2 diabetes. In comparison with women reporting a low level of physical activity, the multivariate OR of type 2 diabetes was 0.67 (95% CI, 0.54-0.84) for women reporting regular physical activity. In comparison with premenopausal women, the multivariate OR of type 2 diabetes was 1.38 (95% CI, 1.03-1.84) in women with natural menopause. This finding was present also after allowing for the potential confounding effect of age. The multivariate OR of diabetes for users of hormonal replacement therapy was 0.58 (95% CI, 0.46-0.73). CONCLUSIONS This large cross-sectional study suggests that postmenopausal women are at higher risk of type 2 diabetes after allowance for the effect of age. Other main determinants of risk of type 2 diabetes in women around menopause were low socioeconomic status and being overweight. Diabetes was found less frequently in those taking hormone replacement therapy.
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Abstract
PURPOSE This review of the literature intends to evaluate the effect of brushes with high frequency motion when compared with manual toothbrushes regarding the indices of plaque and gingival bleeding. METHODS Patients presenting gingivitis and/or chronic periodontitis were evaluated in addition to patients having osseointegrated implants and fixed orthodontic appliances. Pertinent literature was reviewed to select articles according to previously defined inclusion criteria. RESULTS In the assessed studies results showed significant decreases in plaque and gingival indices by utilization of both types of brushes. However, in the selected studies where sonic brushes were tested in orthodontic and dental implant patients there was a more significant decrease in the indices. Furthermore, there was no indication of gingival recession attributed to product use. CONCLUSION Future studies with a more homogeneous methodology and better experiment designs will be needed.
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Affiliation(s)
- M R Costa
- Division of Periodontics, Department of Diagnostic and Surgery, Araraquara Dental School, São Paulo State University, São Paulo, Brazil.
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Di Donato P, Giulini NA, Bacchi Modena A, Cicchetti G, Comitini G, Gentile G, Cristiani P, Careccia A, Esposito E, Gualdi F, Golinelli S, Bergamini E, Masellis G, Rastelli S, Gigli C, Elia A, Marchesoni D, Sticotti F, Del Frate G, Zompicchiatti C, Marino L, Costa MR, Pinto P, Dodero D, Storace A, Spinelli G, Quaranta S, Bossi CM, Ollago A, Omodei U, Vaccari M, Luerti M, Repetti F, Zandonini G, Raspagliesi F, Dolci F, Gambarino G, De Pasquale B, Polizzotti G, Borsellino G, Alpinelli P, Natale N, Colombo D, Belloni C, Viani A, Cecchini G, Vinci GW, Samaja BA, Pasinetti E, Penotti M, Ognissanti F, Pesando P, Malanetto C, Gallo M, Dolfin G, Tartaglino P, Mossotto D, Pistoni A, Tarani A, Rattazzi PD, Rossaro D, Campanella M, Arisi E, Gamper M, Salvatores D, Bocchin E, Stellin G, Meli G, Azzini V, Tirozzi F, Buoso G, Fraioli R, Marsoni V, Cetera C, Sposetti R, Candiotto E, Sposetti R, Candiotto E, Pignalosa R, Del Pup L, Bellati U, Angeloni C, Buonerba M, Garzarelli S, Santilli C, Mucci M, Di Nisio Q, Cappa F, Pierangeli I, Cordone A, Falasca L, Ferrante D, Cirese E, Todaro PA, Spagnuolo L, Lanzone A, Donadio C, Fabiani M, Baldaccini E, Votano S, Bellardini P, Favale W, Pietrobattista V, Massacesi L, Donini G, Del Savio F, Palombi L, Procaccioli P, Romani A, Romagnoli G, Genazzani AR, Gambacciani M, Scarselli G, Curiel P, De Leo V, Melani A, Levi D'Ancona V, Giarrè G, Di Gioia E, Ceccarelli P, Massi GB, Cosci S, Gacci G, Cascianini A, Donati Sarti C, Bircolotti S, Pupita P, Mincigrucci M, Spadafora A, Santeufemia G, Marongiu G, Lai GR, Lai R, Dessole S, D'Andrea SA, Chiantera A, Arienzo R, Pastore AR, Tamburrino A, Cardone A, Colacurci N, Izzo S, Tesauro R, Pascarella A, De Silvio MG, Di Prisco L, Lauda N, Sirimarco F, Agrimi C, Casarella G, Senatore G, Ronzini S, Ruccia G, De Carlo G, Pisaturo G, Carlomagno F, Fasolino A, Fiorillo F, Sorrentino R, Ercolano VB, Panariello S, Brun A, Tropea P, Stigliano CM, Amoroso A, Vadalà P, Coco A, Galati G, Barese G, Masciari G, Pirillo P, Gioffrè T, Mastrantonio P, Cardamone A, D'Angelo N, Valentino G, Barretta R, Ferraro G, Ferruccio C, Agostinelli D, Corrado G, Scopelliti A, Schonauer S, Trojano V, Bongiovanni F, Tinelli F, Poddi ER, Scarpello F, Colonna L, Fischetti G, Doria R, Trombetta G, Cocca EB, D'Amore A, Di Masi M, Liguori R, Dimaggio A, Laneve MR, Maolo MC, Gravina G, Nacci G, Nocera F, Lupo A, Giannola C, Graziano R, Mezzatesta M, Vegna G, Giannone G, Palumbo G, Cancellieri F, Mondo A, Cordopatri A, Carrubba M, Mazzola V, Cincotta L, D'Asta S, Bono A, Li Calsi L, Cavallaro Nigro S, Schilirò S, Repici A, Gullo D, Orlando A, Specchiale F, Papotto A, Massacesi A, Chiantera A, De Aloysio P, Omodei U, Ognissanti F, Campagnoli C, Penotti M, Gambacciani A, Graziottin A, Baldi C, Colacurci N, Tonti GC, Parazzini F, Chatenoud L, Donati Sarti C. Factors associated with climacteric symptoms in women around menopause attending menopause clinics in Italy. Maturitas 2005; 52:181-9. [PMID: 16257609 DOI: 10.1016/j.maturitas.2005.01.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [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: 07/05/2004] [Revised: 01/14/2005] [Accepted: 01/18/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To obtain data on correlates of climacteric symptoms in women around menopause attending menopause clinics in Italy. METHODS Since 1997 a large cross sectional study has been conducted on the characteristics of women around menopause attending a network of first level menopause outpatient's clinics in Italy. A total of 66,501 (mean age 54.4 years) women are considered in the present paper. RESULTS The odds ratios of moderate and severe hot flashes/night sweats were lower in more educated women and (for severe symptoms only) in women reporting regular physical activity. Depression, difficulty to sleep, forgetfulness and irritability tended to be less frequent in more educated women and (depression only) in women reporting regular physical activity. Parous women reported more frequently these symptoms. CONCLUSIONS This large study confirms in Southern European population that low education, body mass index and low physical activity are associated with climacteric symptoms. Parous women are at greater risk of psychological symptoms.
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Affiliation(s)
- P Di Donato
- Associazione Osterici Ginecologi Italiani Via Abamonti, I Milano 20100, Italy
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Neves M, Gano L, Pereira N, Costa MC, Costa MR, Chandia M, Rosado M, Fausto R. Synthesis, characterization and biodistribution of bisphosphonates Sm-153 complexes: correlation with molecular modeling interaction studies. Nucl Med Biol 2002; 29:329-38. [PMID: 11929703 DOI: 10.1016/s0969-8051(01)00305-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [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: 11/26/2022]
Abstract
Bisphosphonates (BPs) are characterized by a P-C-P backbone structure and two phosphonic acid groups bonded to the same carbon, and are established as osteoclast-mediated bone resorption inhibitors. The nature of the groups attached to the central carbon atom are responsible in determining the potency of bisphosphonates as anti-resorption drugs. However, it is not yet clear the exact relationship between their molecular structure and pharmacologic activities. In this study, molecular geometries of pamidronate, alendronate and neridronate, differing only in the length of the aliphatic chains, were predicted by molecular mechanics and their interactions with hydroxyapatite, the main bone mineral component, were examined. We report the synthesis and radiochemical characterization of 153Sm complexes with pamidronate, alendronate and neridronate. Hydroxyapatite binding and biodistribution studies of these complexes have shown a good correlation with the theoretical molecular modeling interaction studies. So, it is possible to conclude that computational chemistry techniques are a good approach to evaluate specific interactions and may play a relevant role in determining the relative ability of BPs to mineral bone, and open new perspectives to the design of new BPs with increased pharmacological activity. These techniques could be extended to BPs as ligands to carrier radioactive metals, aiming for new bone therapeutic radiopharmaceuticals.
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Affiliation(s)
- M Neves
- Instituto Tecnológico e Nuclear, Sacavém, Portugal.
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13
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Santiago MF, Berredo-Pinho M, Costa MR, Gandra M, Cavalcante LA, Mendez-Otero R. Expression and function of ganglioside 9-O-acetyl GD3 in postmitotic granule cell development. Mol Cell Neurosci 2001; 17:488-99. [PMID: 11273644 DOI: 10.1006/mcne.2000.0943] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [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: 11/22/2022] Open
Abstract
We have shown previously that the Jones monoclonal antibody (Jones mAb) recognizes 9-O-acetyl GD3 expressed during periods of neuronal migration and neurite outgrowth in the developing rat nervous system. In the present study we investigated the expression of this ganglioside in the developing cerebellum and correlated this expression with granule cell migration. Electron microscopic immunocytochemistry revealed that around the peak of cerebellar neuronal migration (7-day-old rat), 9-O-acetyl GD3 was localized at the contact sites between migrating granule cells and radial glia in the external granular layer and prospective molecular layer. In addition, using microexplant and slice cultures of the postnatal rat cerebellum, we tested whether the ganglioside detected by our antibody contribute to the regulation of neuronal migration in the cerebellar cortex. We have shown that the Jones mAb blocks the migration of neurons in a dose-dependent manner. These findings suggest strongly that 9-O-acetyl GD3 is involved in granule cell migration in the developing cerebellum.
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Affiliation(s)
- M F Santiago
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-590, Brazil
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Abstract
Cryptococcosis is considered the most frequent fungal systemic opportunist infection in patients with AIDS. C. neoformans var. neoformans infects the patients with AIDS more often than C. neoformans var. gattii which has been rarely isolated from patients with AIDS. Even in endemic regions of C. neoformans var. gattii, the variety of neoformans is still the most common agent diagnosed in cryptococcosis of patients with AIDS. Cerebrospinal fluid (CSF) from fifty patients with neurocryptococcosis associated with AIDS were studied. The fungi were isolated in agar Sabouraud medium, and were identified by microscopic and macroscopic examination by agar Sabouraud, agar niger and Christensen's urea medium. The variety was determined based on a color characteristic reaction on glycine-L-canavanina-bromothymol blue agar. From all of the fifty patients' cerebrospinal fluid (CSF) we were able to recover C. neoformans. The isolates were identified as C. neoformans var. neoformans in 47 patients and as C. neoformans var. gattii. in the 3 remaining patients. These findings suggest that both varieties, gattii and neoformans, are agents of neurocryptococcosis in patients with AIDS.
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Affiliation(s)
- O de F Fernandes
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO
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15
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Costa TR, Costa MR, da Silva MV, Rodrigues AB, Fernandes ODF, Soares AJ, Silva MDR. [The etiology and epidemiology of dermatophytoses in Goiânia, GO, Brazil]. Rev Soc Bras Med Trop 1999; 32:367-71. [PMID: 10495665 DOI: 10.1590/s0037-86821999000400006] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dermatophytoses are superficial infections that may lead to lesions of keratinized tissues, like skin, hair and nails. A total of 6068 individuals from Goiânia, GO, with suspected dermatophytic lesions were examined over a period of five years (1993-1997) in order to determine the incidence and etiology of dermatophytosis. Material collected from different body parts was submitted to direct microscopic examination using KOH, cultured in Sabouraud agar and microscopically examined for colony morphology, with the identification of 1595 dermatophytes. Trichophyton rubrum (37.4%), T. mentagrophytes (36.4%) and Microsporum canis (16%) were the species most frequently isolated. Dermatophytes were more frequently found producing lesions in the feet (30.5%), inguinal and crural regions (17.8%) and glabrous body regions (15.5%). The distribution of the different infected body sites was determined in terms of the respective etiologic agents found. Better hygiene conditions and an early diagnosis are the most important tools to control and reduce the incidence of dermatophytosis in Goiânia, GO.
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Affiliation(s)
- T R Costa
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiâs, Goiânia, GO
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16
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Finquelievich J, Costa MR, Iovannitti C, Negroni R. Blood culture as a parameter of treatment effectiveness in experimental histoplasmosis of the hamster. Rev Inst Med Trop Sao Paulo 1995; 37:99-102. [PMID: 7481478 DOI: 10.1590/s0036-46651995000200002] [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: 01/25/2023] Open
Abstract
The aim of this study was to determine the value of blood culture as a parameter of treatment effectiveness in experimental histoplasmosis. A total of thirty five hamsters, weighing approximately 120g, were inoculated intracardially with 0.1 ml of a suspension containing 4 x 10(7) cells/ml of the yeast phase of H. capsulatum. Treatments were started one week after the infection and lasted for 3 weeks. The azoles, (itraconazole, saperconazole and fluconazole) were administered once a day by gavage, at a dose of 8 mg/kg; Amphotericin B was given intraperitoneally every other day at a dose of 6mg/kg. Blood samples (1 ml) were obtained by heart punction from the 4th day after infection and were seeded in Sabouraud honey-agar and BHI-agar. The hamsters that survived were killed one week after treatment completion and the following criteria were considered for treatment evaluation: 1) rate of spontaneous death, at the end of the experience; 2) microscopic examination of Giemsa smears from liver and spleen and 3) determination of CFU in spleen cultures. Amphotericin B was the most effective drug, with negative blood cultures at day 20, negative spleen cultures in all cases and all the animals survived until the end of the study. Fluconazole was the less effective drug, blood cultures were positive during the whole experience, spleen cultures showed a similar average of CFU when compared with the control animals and 42.8% of these animals died. Saperconazole and itraconazole showed a similar activity, with survival of all hamsters and negative blood cultures at 23 and 26 days respectively. Blood culture seems to be valuable parameter for treatments' evaluation in experimental histoplasmosis of the hamster.
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Affiliation(s)
- J Finquelievich
- Dept. of Microbiology, University of Buenos Aires, School of Medicine, Argentina
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17
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Negroni R, Costa MR, Finquelievich JL, Iovannitti C, Agorio I, Tiraboschi IN, Loebenberg D. Treatment of experimental cryptococcosis with SCH 39304 and fluconazole. Antimicrob Agents Chemother 1991; 35:1460-3. [PMID: 1929309 PMCID: PMC245190 DOI: 10.1128/aac.35.7.1460] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [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: 12/29/2022] Open
Abstract
The efficacy of two triazoles, SCH 39304 and fluconazole, in the treatment of disseminated cryptococcosis in Wistar rats was determined. A total of 160 rats were inoculated intracardiacally with 2 x 10(5) cells of Cryptococcus neoformans. Both drugs were administered by gavage once daily, at three doses (8, 16, and 32 mg/kg/day). Two treatment schedules were followed: (i) treatment began 1 week after infection and continued for 3 weeks and (ii) prophylaxis treatment began 3 days before infection and continued an additional 3 weeks. Evaluation was based on (i) macroscopic examination of lungs, (ii) microscopic examination of brains and lungs, (iii) histopathology of brains and lungs, and (iv) determination of number of CFU in brains. The number of CFU was the best measure of activity. SCH 39304 was more active than fluconazole in both regimens, and, prophylactically, SCH 39304 was able to achieve biological cures.
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Affiliation(s)
- R Negroni
- Departamento de Microbiologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina
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18
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Coraggio F, Bertini G, Angiulli B, Aulisio G, Bacci I, Carbone M, Catalano A, Costa MR, Cricelli F, De Simone L. [Methodologic and therapeutic approach to patients in shock]. Clin Ter 1990; 132:13-39. [PMID: 2139368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The authors extensively review pathophysiology and clinical aspects of the several forms of shock. Then they report a statistical evaluation of the incidence of the different shocks in the Campania area and an analysis of the therapeutic protocols used in several medical centers. From January 1983 to May 1986, 212 patients in shock have been followed: 90 patients with hypovolemic shock; 81 patients with cardiac shock; 24 patients with shock caused by abnormal peripheral distribution; 17 patients with obstructive shock; Furthermore, from January to May 1986, in a multicenter cooperative study (69 medical centers evenly distributed all over Italy) operational factors that could be considered prognostic factors have been investigated utilizing a questionnaire. Finally the authors extensively discuss the therapeutic management of shock proposing new therapeutic protocols based on recent knowledge concerning the pathophysiology of the several clinical features investigated.
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Affiliation(s)
- F Coraggio
- I Facoltà di Medicina e Chirurgia dell'Università di Napoli
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19
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Coraggio F, Angiulli B, Carbone M, Catalano A, Costa MR, Gargiulo L, Gentile B, Masetto O, Pomponio N, Scarpato P. [Acute hepatic steatosis. Description of a clinical case of sodium valproate-induced acute hepatic steatosis]. Clin Ter 1988; 124:451-63. [PMID: 2974353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Coraggio F, Contieri E, Catalano A, Alicandri G, Angiulli B, Costa MR, Gargiulo L, Gentile B, Masetto O, Pomponio N. [Acute mesenteric infarction. Recent advances in relation to physiopathology, clinical features and therapy]. Clin Ter 1988; 124:343-56. [PMID: 2974344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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21
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Abstract
The alpha subunit of the purified voltage-sensitive sodium channel from rat brain is rapidly phosphorylated to the extent of 3-4 mol phosphate/mol by purified protein kinase C. The alpha subunit of the native sodium channel in synaptosomal membranes is also phosphorylated by added protein kinase C as assessed by specific immunoprecipitation and polyacrylamide gel electrophoresis of labeled membranes. Our results suggest coordinate regulation of sodium channel phosphorylation state by cAMP-dependent and calcium/phospholipid-dependent protein kinases.
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22
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Costa MR, Catterall WA. Cyclic AMP-dependent phosphorylation of the alpha subunit of the sodium channel in synaptic nerve ending particles. J Biol Chem 1984; 259:8210-8. [PMID: 6330103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
In purified preparations of voltage-sensitive sodium channels, the alpha subunit is selectively phosphorylated by cAMP-dependent protein kinase (Costa, M. R. C., Casnellie, J. E., and Catterall, W. A. (1982) J. Biol. Chem., 7918-7921). We have developed methods to measure sodium channel phosphorylation in both lysed synaptosomal membranes and intact synaptosomes. Incubation of lysed synaptosomal membranes with exogenously added catalytic subunit of cAMP-dependent kinase and [gamma-32P]ATP resulted in rapid phosphorylation of the alpha subunit as detected by specific immuno-precipitation, sodium dodecyl sulfate-gel electrophoresis, and autoradiography. Analysis of tryptic phosphopeptides revealed five major sites of reaction. The level of phosphorylation of these sites on the sodium channel in intact synaptosomes was monitored using a rephosphorylation method in which those sites not phosphorylated in situ were labeled with [gamma-32P]ATP and exogenously added protein kinase after lysis of the synaptosomes. Incubation of synaptosomes with 8-Br-cAMP completely blocked labeling of the alpha subunit in rephosphorylation indicating marked stimulation of phosphorylation of the sites on the sodium channel in situ. Phosphorylation was complete in 15 s and all four of the tryptic phosphopeptides detected under these conditions could be phosphorylated in situ. These results show that the sodium channel can be rapidly phosphorylated by endogenous cAMP-dependent protein kinase in intact synaptosomes. In addition, since ATP and protein kinase are only available inside the synaptosomes, they also show that the alpha subunit is a transmembrane polypeptide exposed on both sides of the synaptosomal membrane. The functional consequences of 8-Br-cAMP-stimulated phosphorylation were examined using ion flux and neurotoxin-binding methods. Binding of saxitoxin and scorpion toxin were unaffected, but neurotoxin-activated 22Na+ influx mediated by the sodium channel was reduced 16 to 26% (P less than 0.01) under various experimental conditions. The potential physiological significance of this action is considered.
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Costa MR, Catterall WA. Cyclic AMP-dependent phosphorylation of the alpha subunit of the sodium channel in synaptic nerve ending particles. J Biol Chem 1984. [DOI: 10.1016/s0021-9258(17)39715-6] [Citation(s) in RCA: 121] [Impact Index Per Article: 3.0] [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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Talvenheimo JA, Tamkun MM, Harshorne RP, Messner DJ, Sharkey RG, Costa MR, Catterall WA. Structure and functional reconstitution of the voltage-sensitive sodium channel from rat brain. Cold Spring Harb Symp Quant Biol 1983; 48 Pt 1:155-64. [PMID: 6327149 DOI: 10.1101/sqb.1983.048.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Costa MR, Casnellie JE, Catterall WA. Selective phosphorylation of the alpha subunit of the sodium channel by cAMP-dependent protein kinase. J Biol Chem 1982; 257:7918-21. [PMID: 6282861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The alpha subunit of the sodium channel purified from rat brain is rapidly and selectively phosphorylated by the catalytic subunit of cAMP-dependent protein kinase to a level of 3 to 4 mol of 32P/mol of saxitoxin-binding activity. The rate of phosphorylation is comparable to that of the synthetic peptide analog of the phosphorylation site of pyruvate kinase, one of the best substrates for cAMP-dependent protein kinase. An endogenous cAMP-dependent protein kinase that is present in the partially purified sodium channel preparations also selectively phosphorylates the alpha subunit. The specificity and rapidity of the phosphorylation reaction are consistent with the hypothesis that the alpha subunit is phosphorylated by cAMP-dependent protein kinase in vivo.
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Costa MR, Catterall WA. Characterization of variant neuroblastoma clones with missing or altered sodium channels. Mol Pharmacol 1982; 22:196-203. [PMID: 6289070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Variant neuroblastoma cell clones were selected for resistance to the cytotoxic effects of neurotoxins that cause persistent activation of sodium channels. Three classes of variant clones were obtained: sodium channel-deficient clones, which have markedly reduced numbers of functional sodium channels; scorpion toxin-resistant clones, which have sodium channels with an altered interaction with scorpion toxin; and parental-type clones, which have functional sodium channels similar to the ones from N18 cells but have other heritable alterations that confer toxin resistance. The frequency of conversion to all three variant phenotypes was enhanced by treatment with the missense mutagen N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), suggesting that all three variant phenotypes are the result of mutational events. Incorporation of [35S]methionine into the alpha-subunit of the sodium channel (Mr = 270,000; pI = 5.8 +/- 0.2) was studied in normal and variant clones by affinity chromatography on wheat germ agglutinin/Sepharose followed by analysis of labeled polypeptides by 1- and 2-dimensional gel electrophoresis. Sodium channel-deficient clones do not synthesize the alpha-subunit of the sodium channel, suggesting that mutations in these clones block expression of the gene for this protein subunit. The scorpion toxin-resistant clone LV10 synthesizes an alpha-subunit which has a molecular weight and pI similar to those of the parental clones within the resolution of the methods used.
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Costa MR, Breakefield XO. Electrophoretic analysis of 3H-pargyline-labeled monoamine oxidases A and B from human and rat cells. Mol Pharmacol 1980; 17:199-205. [PMID: 7393204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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Costa MR, Breakefield XO. Electrophoretic characterization of monoamine oxidase by [3H]pargyline binding in rat hepatoma cells with A and B activity. Mol Pharmacol 1979; 16:242-9. [PMID: 481420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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29
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Walter U, Costa MR, Breakefield XO, Greengard P. Presence of free cyclic AMP receptor protein and regulation of its level by cyclic AMP in neuroblastoma-glioma hybrid cells. Proc Natl Acad Sci U S A 1979; 76:3251-5. [PMID: 226964 PMCID: PMC383802 DOI: 10.1073/pnas.76.7.3251] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Neuroblastoma-glioma hybrid cells of line 108CC-5 were found to contain high levels of soluble adenosine 3',5'-cyclic monophosphate (cAMP)-dependent protein kinase activity and high levels of two specific cAMP receptor proteins, RI and RII. Treatment of the hybrid cells with dibutyryl cAMP increased the level of RI but did not significantly affect the level either of RII or of cAMP-dependent protein kinase activity. The effect of dibutyryl cAMP could be mimicked by prostaglandin E1 and 3-isobutyl-1-methylxanthine, both of which are known to raise cAMP levels in neuroblastoma-glioma hybrid cells. Both in control as well as in dibutyryl cAMP-treated cells, RII but not RI was associated with cAMP-dependent protein kinase. Several lines of evidence suggest that RI represents the free regulatory subunit of type I cAMP-dependent protein kinase. The presence of this regulatory subunit as free cAMP receptor protein in neuroblastoma-glioma hybrid cells may be of significance with respect to the regulation of growth and differentiation in tumor cells.
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