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Abreu A, Costa R, Portela I, Jomar R, Sousa AI, Souza MH. Factors associated with psychoactive substance use among truck drivers. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
The World Health Organization's report shows a growing concern about drug use and road safety worlwide.
Objectives
To identify sociodemographic, health and occupational characteristics associated with use of psychoactive substances among truck drivers.
Methods
This is a cross-sectional study conducted with 354 drivers from January to June, 2016. Data collection was based on a multidimensional questionnaire that included the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST-WHO) and the Self Reporting Questionnaire (SRQ-20) instruments. The hierarchical approach was adopted for odds ratio (OR) adjustment. The variables that showed statistical significance with p ≤ 0.10 in the bivariate analyzes were selected for the multiple logistic regression analysis performed in the IBM SPSS software (v.19.0).
Results
The use of psychoactive substances in the last three months was associated to low family per capita income (OR, 2.59; 95%CI, 1.23-5.47) and poor self-reported health (1.96; 1.16-3.32), self-reported insomnia (2.9; 1.73-4.87), Common Mental Disorders (3.05; 1.62-5.75) and illness-related absenteeism (1,70; 1.02-2.85). Regarding work characteristics, the use of psychoactive substances in the last three months was observed among those with less than 15 years of work (1.78; 1.07-2.94), daily work journey longer than 6h/day (2.83; 1.69-4.74) and with less than 6 hours of daily rest (1.88; 1.12-3.14).
Conclusions
The results showed worrying vulnerability factors associated with the use of psychoactive substances among truck drivers in Brazil.
Key messages
The survey of 354 truck drivers described the vulnerability and risk factors, which are exposed, as inadequate work conditions associated with the use of psychoactive substances. It showed a greater chance of at least the use of one of the substances (alcohol, cocaine, amphetamine), among truck drivers and the importance in the development of public policies for this worker.
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Affiliation(s)
- A Abreu
- Public Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - R Costa
- Public Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - I Portela
- Public Health, National Institute of Infectious Diseases Evandro Chagas - Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Rafael Jomar
- Epidemiology sector, National Cancer Institute Ministry of Health, Rio de Janeiro, Brazil
| | - A I Sousa
- Public Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - M H Souza
- Public Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Nicolau LA, Carvalho NS, Pacífico DM, Lucetti LT, Aragão KS, Véras LM, Souza MH, Leite JR, Medeiros JVR. Epiisopiloturine hydrochloride, an imidazole alkaloid isolated from Pilocarpus microphyllus leaves, protects against naproxen-induced gastrointestinal damage in rats. Biomed Pharmacother 2017; 87:188-195. [DOI: 10.1016/j.biopha.2016.12.101] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 12/22/2022] Open
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Sousa WM, Silva RO, Bezerra FF, Bingana RD, Barros FCN, Costa LE, Sombra VG, Soares PM, Feitosa JP, de Paula RC, Souza MH, Barbosa ALR, Freitas ALP. Sulfated polysaccharide fraction from marine algae Solieria filiformis : Structural characterization, gastroprotective and antioxidant effects. Carbohydr Polym 2016; 152:140-148. [DOI: 10.1016/j.carbpol.2016.06.111] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 06/21/2016] [Accepted: 06/28/2016] [Indexed: 01/24/2023]
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V. Brito T, Barros FC, Silva RO, Dias Júnior GJ, C. Júnior JS, Franco ÁX, Soares PM, Chaves LS, Abreu CM, de Paula RC, Souza MH, Freitas ALP, R. Barbosa AL. Sulfated polysaccharide from the marine algae Hypnea musciformis inhibits TNBS-induced intestinal damage in rats. Carbohydr Polym 2016; 151:957-964. [DOI: 10.1016/j.carbpol.2016.06.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/21/2016] [Accepted: 06/11/2016] [Indexed: 01/02/2023]
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Silva LC, Batista RO, Anjos RSR, Souza MH, Carneiro PCS, Souza TLPO, Barros EG, Carneiro JES. Morphoagronomic characterization and genetic diversity of a common bean RIL mapping population derived from the cross Rudá x AND 277. Genet Mol Res 2016; 15:gmr8112. [PMID: 27525881 DOI: 10.4238/gmr.15038112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Recombinant inbred lines (RILs) are a valuable resource for building genetic linkage maps. The presence of genetic variability in the RILs is essential for detecting associations between molecular markers and loci controlling agronomic traits of interest. The main goal of this study was to quantify the genetic diversity of a common bean RIL population derived from a cross between Rudá (Mesoamerican gene pool) and AND 277 (Andean gene pool). This population was developed by the single seed descent method from 500 F2 plants until the F10 generation. Seven quantitative traits were evaluated in the field in 393 RILs, the parental lines, and five control cultivars. The plants were grown using a randomized block design with additional controls and three replicates. Significant differences were observed among the RILs for all evaluated traits (P < 0.01). A comparison of the RILs and parental lines showed significant differences (P < 0.01) for the number of days to flowering (DFL) and to harvest (DH), productivity (PROD) and mass of 100 beans (M100); however, there were no significant differences for plant architecture, degree of seed flatness, or seed shape. These results indicate the occurrence of additive x additive epistatic interactions for DFL, DH, PROD, and M100. The 393 RILs were shown to fall into 10 clusters using Tocher's method. This RIL population clearly contained genetic variability for the evaluated traits, and this variability will be crucial for future studies involving genetic mapping and quantitative trait locus identification and analysis.
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Affiliation(s)
- L C Silva
- Programa de Pós-Graduação em Genética e Melhoramento, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - R O Batista
- Programa de Pós-Graduação em Genética e Melhoramento, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - R S R Anjos
- Programa de Pós-Graduação em Genética e Melhoramento, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - M H Souza
- Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - P C S Carneiro
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - T L P O Souza
- Embrapa Arroz e Feijão, Santo Antônio de Goiás, GO, Brasil
| | - E G Barros
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brasil
| | - J E S Carneiro
- Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa, MG, Brasil
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Vale NM, Barili LD, Souza MH, Moura LMM, Carneiro JES, Carneiro PC, Silva FL. Effect of generations and environments in the analysis of a partial diallel to improve bean earliness. Genet Mol Res 2015; 14:8219-28. [PMID: 26345747 DOI: 10.4238/2015.july.27.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The objective of this study was to select genitors based on F1 and F2 generations, evaluated in different environments, to obtain segregating populations for the identification of strains showing improved earliness, yield, and carioca-type grains. Nine bean strains were crossed in a partial diallel scheme (4 x 5), in which group 1 included 4 strains with early cycles and group 2 included 5 elite strains. The F1 and F2 generations and the genitors were assessed in Coimbra and Viçosa in randomized blocks with 3 replications. The following characteristics were evaluated: days between sowing and emergence, and grain yield. We observed an interaction between the effects of general combining ability and specific combining ability with the environments (crop, location, and generation) for both grain earliness and yield. Genetic analysis of earliness revealed a predominance of additive effects and grain yield dominance effects. The strain Goiano Precoce may be used as a genitor in breeding programs to improve earliness, while strains RP1 and VC33 can be used to increase grain yield. We observed genetic complementation between strains Goiano Precoce and RP1, BRSMG Madrepérola and BRS Estilo for earliness and between RP1 and Rosinha Precoce for grain yield.
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Silva RO, Damasceno SR, Silva IS, Silva VG, Brito CF, Teixeira AÉA, Nunes GB, Camara CA, Filho JMB, Gutierrez SJ, Ribeiro RA, Souza MH, Barbosa AL, Freitas RM, Medeiros JVR. Riparin A, a compound from Aniba riparia, attenuate the inflammatory response by modulation of neutrophil migration. Chem Biol Interact 2015; 229:55-63. [DOI: 10.1016/j.cbi.2015.01.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 01/09/2015] [Accepted: 01/24/2015] [Indexed: 12/23/2022]
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Pereira JG, Mesquita JX, Aragão KS, Franco ÁX, Souza MH, Brito TV, Dias JM, Silva RO, Medeiros JVR, Oliveira JS, Abreu CMW, de Paula RCM, Barbosa ALR, Freitas ALP. Polysaccharides isolated from Digenea simplex inhibit inflammatory and nociceptive responses. Carbohydr Polym 2014; 108:17-25. [DOI: 10.1016/j.carbpol.2014.01.105] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 11/16/2022]
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Damasceno SR, Rodrigues JC, Silva RO, Nicolau LA, Chaves LS, Freitas AL, Souza MH, Barbosa AL, Medeiros JVR. Role of the NO/KATP pathway in the protective effect of a sulfated-polysaccharide fraction from the algae Hypnea musciformis against ethanol-induced gastric damage in mice. Revista Brasileira de Farmacognosia 2013. [DOI: 10.1590/s0102-695x2013005000003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Costa NR, Silva RO, Nicolau LA, Lucetti LT, Santana APM, Aragão KS, Soares PM, Ribeiro RA, Souza MH, Barbosa AL, Medeiros JVR. Role of soluble guanylate cyclase activation in the gastroprotective effect of the HO-1/CO pathway against alendronate-induced gastric damage in rats. Eur J Pharmacol 2013; 700:51-9. [DOI: 10.1016/j.ejphar.2012.12.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 12/05/2012] [Accepted: 12/07/2012] [Indexed: 10/27/2022]
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Evangelista JSAM, Evangelista JJF, Evangelista IL, Nojosa DMB, Nascimento NRF, Souza MH, Alves RS, Martins AMC, Moraes MEA, Monteiro HSA. Hypotensive Effects of the Crotalus Durissus Cascavella Venom: Involvement of NO. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Crotalus durissus cascavella is a snake native of northeastern Brazil. The aim of the study was to investigate the effects of C. d. cascavella venom on rat mean arterial pressure and vascular reactivity in the mesenteric vascular bed. The venom evoked a dose-dependent decrease in mean arterial pressure, cardiac and respiratory frequency with increased plasma nitrite levels. L-NAME (10 mg/kg) blunted both the hypotension and increased nitrite production observed after the venom administration. To investigate the effects of C. d. cascavella in resistance vessels, the vascular mesenteric bed was studied, and the results suggested that the hypotensive effect of the venom is not dependent on a direct vasodilatory activity. In conclusion, C. d. cascavella venom presented indirect hypotensive effects with the involvement of nitric oxide.
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Affiliation(s)
| | - João J. F. Evangelista
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Inez L. Evangelista
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Diva M. B. Nojosa
- Ophiology Regional Nucleus of Ceará, Federal University of Ceara, Fortaleza, Ceará, Brazil
| | | | - Marcellus H.L.P. Souza
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Renata S Alves
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Alice M C Martins
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Maria Elisabete A. Moraes
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Helena S. A. Monteiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
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Gomes AS, Gadelha GG, Lima SJ, Garcia JA, Medeiros JVR, Havt A, Lima AA, Ribeiro RA, Brito GAC, Cunha FQ, Souza MH. Gastroprotective effect of heme-oxygenase 1/biliverdin/CO pathway in ethanol-induced gastric damage in mice. Eur J Pharmacol 2010; 642:140-5. [DOI: 10.1016/j.ejphar.2010.05.023] [Citation(s) in RCA: 37] [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] [Received: 09/18/2009] [Revised: 04/17/2010] [Accepted: 05/23/2010] [Indexed: 10/19/2022]
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Vieira MF, Solymos GM, Souza MH, Ferrari AA, Unegbu H, Sawaya AL. [Evaluation of nutritional recovery pattern of malnourished children examined at the center of Recovery and Educational Nutrition, Brazil]. Rev Assoc Med Bras (1992) 1998; 44:294-300. [PMID: 9852649 DOI: 10.1590/s0104-42301998000400008] [Citation(s) in RCA: 5] [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: 11/22/2022] Open
Abstract
PURPOSE To assess the pattern of nutritional recovery in malnourished children. This prospective analysis was conducted between September 1995 and November 1996 at the Center for Recovery and Nutrition Education (CREN) in São Paulo, Brazil. Of the thirty-eight children studied, 47.4% were infants (nine girls and nine boys) and 52.6% preschool children (twelve boys and eight girls). METHOD Thirty eight children were studied by velocity of W/A and H/A gain in standard deviation or Z score, according to weight and height median of NCHS. RESULTS There was a statistically significant increase in the weight-for-age (W/A)(p = 0.012), height-for-age (H/A) (p = 0.001) from the time of admission. The difference in the velocity of W/A gain between infants (0.299-Z/year) and preschool children (0.684-Z/year) with more than six months of treatment, was found to be statistically significant (p = 0.038). The difference in the velocity of H/A gain for infants (0.794-Z/year) and for preschool children (0.506-Z/year), was not statistically significant (p = 0.166). In regards to gender, there was not a statistically significant difference between boys and girls in the velocity of W/A gain (0.540 and 0.524-Z/year, respectively). The difference in velocity of H/A gain was statistically significant, 0.485-Z/year for boys and 0.856-Z/year for girls (p = 0.043). CONCLUSION These findings show that there are differences in the nutritional recovery patterns between gender and age groups.
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Affiliation(s)
- M F Vieira
- Departamento de Fisiologia, Universidade Federal de São Paulo, Escola Paulista de Medicina, SP
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Souza MH, Sawaya AL, Sesso R, Sigulem DM. [Breastfeeding in shantytowns: an educational program through home visits]. Arch Latinoam Nutr 1998; 48:231-5. [PMID: 9951536] [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: 02/10/2023]
Abstract
This is a study of breastfeeding length, with and without a community educational program. It was done through home visits to 125 women residing in Vila Marianaís shantytowns in the city of São Paulo. It was found that breastfeeding lasts an average of more than 6 months after the educational intervention. When comparing the group that received education with the one that didnít, it was observed that in the former the percentage of children breastfed for 6 months or longer was 64%, while in the control group it was 17% (p < 0.001). This shows a significant increase in the number of mothers who nursed their children after an educational program promoting breastfeeding.
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Affiliation(s)
- M H Souza
- Universidade Federal do Rio de Janeiro, Brasil
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15
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Souza MH, Melo-Filho AA, Rocha MF, Lyerly DM, Cunha FQ, Lima AA, Ribeiro RA. The involvement of macrophage-derived tumour necrosis factor and lipoxygenase products on the neutrophil recruitment induced by Clostridium difficile toxin B. Immunol Suppl 1997; 91:281-8. [PMID: 9227329 PMCID: PMC1363859 DOI: 10.1046/j.1365-2567.1997.00243.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [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: 02/04/2023]
Abstract
Clostridium difficile (Cd) toxins appear to mediate the inflammatory response in pseudomembranous colitis and/or colitis associated with the use of antibiotics. In contrast to Cd Toxin A (TxA), Cd Toxin B (TxB) has been reported not to promote fluid secretion or morphological damage in rabbits and hamsters and also does not induce neutrophil chemotaxis in vitro. However, TxB is about 1000 times more potent than TxA in stimulating the release of tumour necrosis factor-alpha (TNF-alpha) by cultured monocytes. In the present study, we investigated the ability of TxB to promote neutrophil migration into peritoneal cavities and subcutaneous air-pouches of rats. We also examined the role of resident peritoneal cells in this process as well as the inflammatory mediators involved. TxB caused a significant and dose-dependent neutrophil influx with a maximal response at 0.1 microgram/cavity after 4 hr. Depleting the peritoneal resident cell population by washing the peritoneal cavity or increasing this population by pretreating the animals with thioglycollate blocked and amplified the TxB-induced neutrophil migration, respectively. Pretreating the animals with MK886 (a lipoxygenase inhibitor), NDGA (a dual cyclo- and lipoxygenase inhibitor) or the glucocorticoid, dexamethasone, but not with indomethacin (a cyclo-oxygenase inhibitor), or BN52021 (a platelet-activating factor antagonist), inhibited the neutrophil migration evoked by TxB. Pretreatment with dexamethasone or the administration of anti-TNF-alpha serum into the air-pouches also significantly reduced the TxB-induced neutrophil migration. Supernatants from TxB-stimulated macrophages induced neutrophil migration when injected into the rat peritoneal cavity. This effect was attenuated by the addition of either MK886 or dexamethasone to the macrophage monolayer and by preincubating the supernatants with anti-TNF-alpha serum. TxB also stimulated the release of TNF-alpha by macrophages. Overall, these results suggest that TxB induces an intense neutrophil migration which is mediated by macrophage-derived TNF-alpha and lipoxygenase products.
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Affiliation(s)
- M H Souza
- Department of Physiology and Pharmacology/Clinical Research Unit-HUWC, Federal University of Ceará, Fortaleza-CE, Brazil
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Melo Filho AA, Souza MH, Lyerly DM, Cunha FQ, Lima AA, Ribeiro RA. Role of tumor necrosis factor and nitric oxide in the cytotoxic effects of Clostridium difficile toxin A and toxin B on macrophages. Toxicon 1997; 35:743-52. [PMID: 9203299 DOI: 10.1016/s0041-0101(96)00172-9] [Citation(s) in RCA: 20] [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: 02/04/2023]
Abstract
Clostridium difficile, the bacterium involved in antibiotic-associated colitis, produces two exotoxins, toxin A (TxA) and toxin B (TxB). Although these toxins are well recognized as being cytotoxic to several mammalian cell types, the mechanisms involved are not fully understood. The aim of the present investigation was to examine the cytotoxicity of TxA and TxB to peritoneal macrophages in culture and to investigate whether tumor necrosis factor-alpha (TNF-alpha) and nitric oxide (NO) are involved in the process. As a control, the effect of E. coli LPS was also investigated. TxA, TxB and LPS were dose-dependently cytotoxic to macrophage monolayers, with TxB being the most potent. All of the toxins stimulated the release of TNF-alpha from macrophages. TxB was again the most active in inducing this response. The TNF-alpha released appears to be involved in the action of LPS and TxA, but not of TxB, since a mAb against TNF-alpha inhibited the cytotoxicity of the former two but had no effect on the latter. NO is not involved in the effects of TxA and TxB since these toxins did not induce the production of this mediator in macrophages, even in the presence of IFN-gamma. In addition, L-imino-ethyl-L-ornithine (L-NIO), a NO synthase inhibitor, did not modify the macrophage death caused by TxA or TxB. Although LPS was able to induce the production of high amounts of NO, NO did not mediate the LPS cytotoxicity since L-NIO did not influence the degree of macrophage death caused by LPS. TxA and TxB therefore appear to exert cytotoxic effects on cultured macrophages by different mechanisms. TNF-alpha is involved in TxA and LPS-mediated cytotoxicity but not in the toxicity caused by TxB. NO is not involved in the killing action of any of these toxins.
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Affiliation(s)
- A A Melo Filho
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
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17
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Brito GA, Souza MH, Melo-Filho AA, Hewlett EL, Lima AA, Flores CA, Ribeiro RA. Role of pertussis toxin A subunit in neutrophil migration and vascular permeability. Infect Immun 1997; 65:1114-8. [PMID: 9038326 PMCID: PMC175098 DOI: 10.1128/iai.65.3.1114-1118.1997] [Citation(s) in RCA: 23] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The anti-inflammatory activity of pertussis toxin (Ptx) was compared to that of a noncatalytic mutant of pertussis toxin (9K/129G; Ptxm), which contains two amino acid substitutions in the A protomer, by using a rat model of inflammation. The toxins were administered intravenously 1 h prior to the injection of inflammatory stimuli. Ptx, but not Ptxm, inhibited neutrophil migration into peritoneal cavities in response to formyl-methionyl-leucyl-phenylalanine and lipopolysaccharide. The inhibitory effect of Ptx on neutrophil migration could not be explained by the ability of the toxin to induce leukopenia or neutropenia. The increase in skin vascular permeability induced by leukotriene B4, a powerful neutrophil chemotactic agent, was also inhibited only by Ptx. On the other hand, the increase in skin vascular permeability induced by histamine was potentiated by both toxins. These data show that Ptx inhibits neutrophil-mediated inflammation in vivo and that this effect is dependent on the ADP-ribosyltransferase activity of the A protomer.
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Affiliation(s)
- G A Brito
- Department of Physiology and Pharmacology, Federal University of Ceara, Fortaleza, Brazil
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18
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Ribeiro RA, Souza-Filho MV, Souza MH, Oliveira SH, Costa CH, Cunha FQ, Ferreira HS. Role of resident mast cells and macrophages in the neutrophil migration induced by LTB4, fMLP and C5a des arg. Int Arch Allergy Immunol 1997; 112:27-35. [PMID: 8980461 DOI: 10.1159/000237427] [Citation(s) in RCA: 51] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In the present study, we have investigated the participation of resident peritoneal cells (macrophages and mast cells) in the neutrophil migration induced in rats by the intraperitoneal administration of LTB4, fMLP or C5a des arg. The intraperitoneal injection of LTB4 (10 nmol), fMLP (10 nmol) and C5a des arg (zymosan-activated plasma, 1 ml) caused an intense neutrophil migration compared to the saline control (1,000, 1,500 and 2,000%, respectively). An 83% depletion in the number of resident cells following peritoneal lavage reduced the LTB4-stimulated neutrophil migration by 73.6% without affecting that caused by fMLP and C5a des arg. Increasing the peritoneal macrophage population (236%) by pretreating the cavities with thioglycollate enhanced the neutrophil migration induced by LTB4 (129%), but did not alter that induced by fMLP and C5a des arg. Similarly, reducing the population of peritoneal mast cells containing toluidine-blue-staining granules by subchronically pretreating the cavities with compound 48/80 diminished the LTB4-induced NM by 69% but had no effect on the responses to fMLP and C5a des arg. Pretreating the animals with dexamethasone strongly inhibited (70%) the neutrophil migration induced by the intraperitoneal injection of LTB4, fMLP and C5a des arg. Indomethacin, BW A4C and NDGA had no such effect. The incubating medium from peritoneal macrophages and mast cells stimulated with LTB4 induced neutrophil migration when injected into the peritoneal cavity of rats. This migration was strongly reduced (70%) by treating the cells with dexamethasone. In contrast, stimulating the cells with fMLP or C5a des arg did not result in the release of any promigratory activity into the incubating fluid. Our results suggest that LTB4 induces neutrophil migration via a mechanism dependent on resident mast cells and macrophages while that induced by C5a des arg and fMLP seems to be independent of such cellular involvement. The neutrophil migration induced by LTB4 is apparently mediated by factor(s) whose release is blocked by dexamethasone. fMLP and C5a appear to cause in vivo migration by the formation of a concentration gradient and by a glucocorticoid-sensitive mechanism different from that stimulated by LTB4.
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Affiliation(s)
- R A Ribeiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Alves GA, Amato S, Anjos JC, Appel JA, Astorga J, Bracker SB, Cremaldi LM, Dagenhart WD, Darling CL, Dixon RL, Errede D, Fenker HC, Gay C, Green DR, Jedicke R, Karchin PE, Kennedy C, Kwan S, Lueking LH, Metheny J, Milburn RH, Napier A, Passmore D, Rafatian A, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wallace A, Wu Z. Feynman-x and Transverse Momentum Dependence of D Meson Production in 250 GeV pi, K, and p Interactions with Nuclei. Phys Rev Lett 1996; 77:2392-2395. [PMID: 10061942 DOI: 10.1103/physrevlett.77.2392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Alves GA, Amato S, Anjos JC, Appel JA, Astorga J, Bracker SB, Cremaldi LM, Dagenhart WD, Darling CL, Dixon RL, Errede D, Fenker HC, Gay C, Green DR, Jedicke R, Karchin PE, Kennedy C, Kwan S, Lueking LH, Metheny J, Milburn RH, Napier A, Passmore D, Rafatian A, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wallace A, Wu Z. Forward Cross Sections for Production of D+, D0, Ds, D*+, and Lambda c in 250 GeV pi +/-, K+/-, and p Interactions with Nuclei. Phys Rev Lett 1996; 77:2388-2391. [PMID: 10061941 DOI: 10.1103/physrevlett.77.2388] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Diamond HR, Souza MH, Silva ML, Tabak DG, Ferman S, M-Silva VM, de La Rocque L, Rumjanek VM. Natural killer cell activity in a patient with Chédiak-Higashi syndrome submitted to bone marrow transplantation. Pediatr Hematol Oncol 1995; 12:399-402. [PMID: 7577393 DOI: 10.3109/08880019509029591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Diamond HR, Souza MH, Bouzas LF, Tabak DG, Campos MM, Câmara FP, Rumjanek VM. Deficit of T-cell recovery after allogeneic bone marrow transplantation in chronic myeloid leukemia patients. Anticancer Res 1995; 15:1553-60. [PMID: 7654044] [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: 01/26/2023]
Abstract
The immunological reconstitution that follows bone marrow transplantation (BMT) was studied in 40 leukaemia patients: 19 with chronic myeloid leukaemia (CML), 12 with acute myeloid leukaemia (AML) and the remaining 9 with acute lymphoblastic leukaemia (ALL). The recovery of the CML group was slower than that of the ALL and AML groups. This difference was produced by the T cell compartment, as NK cell activity and B cell numbers did not differ significantly. Factors such as conditioning treatment and graft versus host disease (GVHD) prophylaxis were analysed. Our experience suggests that all leukaemia patients should not be considered as one group when analysing their immunological reconstitution, as factors related to the original disease may affect their outcome.
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Affiliation(s)
- H R Diamond
- Bone Marrow Transplantation Unit, National Cancer Institute, Rio de Janeiro, Brazil
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Thomazzi SM, Souza MH, Melo-Filho AA, Hewlett EL, Lima AA, Ribeiro RA. Pertussis toxin from Bordetella pertussis blocks neutrophil migration and neutrophil-dependent edema in response to inflammation. Braz J Med Biol Res 1995; 28:120-4. [PMID: 7581020] [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: 01/26/2023] Open
Abstract
Pertussis toxin (Ptx) is a hexameric protein with classical AB architecture produced by Bordetella pertussis. The aim of this study was to investigate the effect of Ptx on migration of polymorphonuclear leukocytes to site of inflammation and on cell-dependent edema. Ptx was purified from the supernatant of the culture medium of B. pertussis using hydroxylapatite chromatography and fetuin affinity chromatography. Ptx induced a maximal clustering of Chinese hamster ovary cells at concentrations as low as 0.1 ng/ml. Intravenous injection of Ptx (400 ng) significantly blocked the neutrophil migration induced by 200 ng of lipopolysaccharide (LPS from E. coli O111:B4; 2.27 +/- 0.13 vs 0.61 +/- 0.16 per 10(6) neutrophils/ml; P < 0.001; N = 5) and by 200 ng of formyl-methionyl-leucyl-phenylalanine (fMLP; 2.53 +/- 0.45 vs 0.75 +/- 0.14 per 10(6) neutrophils/ml; P < 0.01; N = 6) into the peritoneal cavities of male Wistar rats (weighing 150-180 g). In addition, Ptx (400 ng) pretreatment also blocked the edema induced by intraplantar injection of 100 micrograms carrageenin (delta increase in volume: 0.667 +/- 0.087 vs 0.313 +/- 0.058 ml; P < 0.01; N = 5) but not the edema induced by 100 micrograms dextran (delta increase in volume: 0.537 +/- 0.06 vs 0.385 +/- 0.076 ml; P > 0.05; N = 5). These data demonstrate that Ptx blocked neutrophil migration induced by a direct fMLP stimulus of a site of inflammation. In addition, this toxin blocks the indirect stimulus of LPS on neutrophil migration.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- S M Thomazzi
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal do Ceara, Fortaleza, CE, Brasil
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Alves GA, Amato S, Anjos JC, Appel JA, Astorga J, Bracker SB, Cremaldi LM, Darling CL, Dixon RL, Errede D, Fenker HC, Gay C, Green DR, Halling AM, Jedicke R, Karchin PE, Kwan S, Leuking LH, Mantsch PM, Metheny J, Milburn RH, Napier A, Passmore D, Rafatian A, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wallace A, Wu Z. D*+/- production in 250 GeV pi +/-N interactions. Int J Clin Exp Med 1994; 49:R4317-R4320. [PMID: 10017507 DOI: 10.1103/physrevd.49.r4317] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Souza MH, Retief DH, Russell CM, Denys FR. Laboratory evaluation of phosphate ester bonding agents. Am J Dent 1994; 7:67-73. [PMID: 8054187] [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: 01/28/2023]
Abstract
Two dentin bonding agents that contain phosphorus esters, (Clearfil Photo Bond and Panavia), and a bonding agent for porcelain, (Clearfil Porcelain Bond), have been introduced for bonding to enamel, dentin, amalgam, cast metal alloys and porcelain. The shear bond strengths were determined to enamel (Procedure A), to dentin (Procedure B), to amalgam (Procedure C), of amalgam to dentin (Procedure D), to cast metal alloy (Procedure E) and to porcelain (Procedure F). Also the quantitative microleakage of Class V restorations in cementum (dentin) was evaluated (Procedure G). The components were applied as directed by the manufacturer and a light-cured resin composite for posterior teeth, (Clearfil Photo Posterior) used. The mean +/- SD of the shear bond strengths recorded in MPa were: A = 24.15 +/- 3.65; B = 11.30 +/- 3.12; C = 13.77 +/- 3.42; D = 4.26 +/- 0.92; E = 17.84 +/- 3.19; F = 13.45 +/- 4.12. The quantitative microleakage (G) was 0.55 +/- 0.34 mg dye/restoration.
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Affiliation(s)
- M H Souza
- Faculdade de Odontologia, Bauru, Brazil
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Alves GA, Amato S, Anjos JC, Appel JA, Astorga J, Bernard T, Bracker SB, Cremaldi LM, Darling CL, Dixon RL, Errede D, Gay C, Green DR, Jedicke R, Karchin PE, Kwan S, Lueking LJ, Metheny J, Milburn RH, Napier A, Passmore D, Rafatian A, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wallace A, Wu Z. Enhanced leading production of D+/- and D*+/- in 250 GeV pi +/--nucleon interactions. Phys Rev Lett 1994; 72:812-815. [PMID: 10056541 DOI: 10.1103/physrevlett.72.812] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Danner GM, Duboscq J, Elliott JR, Escobar CO, Gibney MC, Gordon AS, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Ross WR, Santoro AF, Shoup AL, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Streetman ME, Stundzia AB, Volkmuth WD, Witherell MS. Dalitz plot analysis of D-->K pi pi decays. Phys Rev D Part Fields 1993; 48:56-62. [PMID: 10016060 DOI: 10.1103/physrevd.48.56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Alves GA, Amato S, Anjos JC, Appel JA, Bracker SB, Cremaldi LM, Darling CL, Dixon RL, Errede D, Fenker HC, Gay C, Green DR, Jedicke R, Kaplan D, Karchin PE, Kwan S, Leedom I, Lueking LH, Luste GJ, Mantsch PM, Metheny J, Milburn RH, Napier A, Rafatian A, Reucroft S, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wu Z. Atomic mass dependence of D+/- and D0,D-bar 0 production in 250 GeV pi +/--nucleon interactions. Phys Rev Lett 1993; 70:722-725. [PMID: 10054187 DOI: 10.1103/physrevlett.70.722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Alves GA, Amato S, Anjos JC, Appel JA, Bracker SB, Cremaldi LM, Darling CL, Dixon RL, Errede D, Fenker HC, Gay C, Green DR, Jedicke R, Kaplan D, Karchin PE, Kwan S, Leedom I, Lueking LH, Luste GJ, Mantsch PM, Metheny J, Milburn RH, Napier A, d'Olivera AB, Rafatian A, Reucroft S, Ross WR, Santoro AF, Sheaff M, Souza MH, Spalding WJ, Stoughton C, Streetman ME, Summers DJ, Takach SF, Wu Z. Feynman-x and transverse-momentum dependence of D+/- and D0, D-bar0 production in 250 GeV pi --nucleon interactions. Phys Rev Lett 1992; 69:3147-3150. [PMID: 10046742 DOI: 10.1103/physrevlett.69.3147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bediaga I, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliot JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Lima JG, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Study of the doubly Cabibbo-suppressed decay D+--> phiK+ and the singly Cabibbo-suppressed decay Ds+--> phiK+. Phys Rev Lett 1992; 69:2892-2895. [PMID: 10046668 DOI: 10.1103/physrevlett.69.2892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Huber J, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Schmidt DM, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Sperka D, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Study of the decays D-->K3 pi. Phys Rev D Part Fields 1992; 46:1941-1950. [PMID: 10015110 DOI: 10.1103/physrevd.46.1941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliot JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Experimental probes of final-state interactions in D0-meson decays. Int J Clin Exp Med 1992; 46:R1-R5. [PMID: 10014787 DOI: 10.1103/physrevd.46.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Huber J, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Schmidt DM, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Sperka DJ, Streetman ME, Stundia AB, Witherell MS. Study of the decays D-->K pi pi e nu and D-->K* pi e nu. Phys Rev D Part Fields 1992; 45:R2177-R2180. [PMID: 10014644 DOI: 10.1103/physrevd.45.r2177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Schmidt DM, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Measurement of the decays D0--> pi - pi + and D0-->K-K+. Int J Clin Exp Med 1991; 44:R3371-R3374. [PMID: 10013840 DOI: 10.1103/physrevd.44.r3371] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Ross WR, Santoro AF, Schmidt DM, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Sperka D, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Study of the decay D+-->K-bar0-bare+ nu e. Phys Rev Lett 1991; 67:1507-1510. [PMID: 10044173 DOI: 10.1103/physrevlett.67.1507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney M, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Pinfold J, Punkar G, Purohit MV, Santoro AF, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Study of the decay Ds+--> eta ' pi +. Int J Clin Exp Med 1991; 43:R2063-R2066. [PMID: 10013632 DOI: 10.1103/physrevd.43.r2063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliot JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Santoro AF, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Some Cabibbo-suppressed decays of the D0 meson. Int J Clin Exp Med 1991; 43:R635-R640. [PMID: 10013462 DOI: 10.1103/physrevd.43.r635] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Santoro AF, Schmidt DM, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Measurement of the form factors in the decay D+-->K-bar*0e+ nu e. Phys Rev Lett 1990; 65:2630-2633. [PMID: 10042652 DOI: 10.1103/physrevlett.65.2630] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Photon-gluon-fusion analysis of charm photoproduction. Phys Rev Lett 1990; 65:2503-2506. [PMID: 10042614 DOI: 10.1103/physrevlett.65.2503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Santoro AF, Sidhu JS, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Experimental results on the decays D-->K4 pi. Int J Clin Exp Med 1990; 42:2414-2418. [PMID: 10013108 DOI: 10.1103/physrevd.42.2414] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Study of Ds+--> phie+ nu e and the absolute Ds+--> phi pi + branching fraction. Phys Rev Lett 1990; 64:2885-2888. [PMID: 10041838 DOI: 10.1103/physrevlett.64.2885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Nauenberg U, Ong P, Pinfold J, Punkar G, Purohit MV, Santoro AF, Sidhu JS, Shoup AL, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Study of the decays D-->K-bar0 pi + and D-->K-bar0K+. Phys Rev D Part Fields 1990; 41:2705-2708. [PMID: 10012663 DOI: 10.1103/physrevd.41.2705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliot JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Nauenberg U, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Study of decays of the Lambda c+. Phys Rev D Part Fields 1990; 41:801-804. [PMID: 10012397 DOI: 10.1103/physrevd.41.801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Observation of excited charmed mesons. Phys Rev Lett 1989; 62:1717-1720. [PMID: 10039749 DOI: 10.1103/physrevlett.62.1717] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Nauenberg U, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Observation of Sigma c0--> Lambda c+ pi - decays. Phys Rev Lett 1989; 62:1721-1723. [PMID: 10039750 DOI: 10.1103/physrevlett.62.1721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Study of the semileptonic decay mode D0-->K-e+ nu e. Phys Rev Lett 1989; 62:1587-1590. [PMID: 10039713 DOI: 10.1103/physrevlett.62.1587] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Nishiyama CK, Lacerda AG, Souza MH, Francischone CE, Ishikiriama A, Berbert A. [Bleaching of devitalized teeth with ultrasonic assistance]. Rev Fr Endod 1989; 8:43-7. [PMID: 2633222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new bleaching technique for pulpless teeth is demonstrated by a clinical case. The principle of the method is to clean the dentinal tubules by an 1% sodium hypochlorite solution activated by a 40 endosonofile. A mixture of sodium perborate and a 3% hydrogen peroxide is left in the pulp chamber between the treatment sessions.
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Duboscq JE, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Experimental study of the semileptonic decay D+-->K-bar. Phys Rev Lett 1989; 62:722-725. [PMID: 10040316 DOI: 10.1103/physrevlett.62.722] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundia AB, Witherell MS. Charm photoproduction. Phys Rev Lett 1989; 62:513-516. [PMID: 10040254 DOI: 10.1103/physrevlett.62.513] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Anjos JC, Appel JA, Bean A, Bracker SB, Browder TE, Cremaldi LM, Elliott JR, Escobar CO, Estabrooks P, Gibney MC, Hartner GF, Karchin PE, Kumar BR, Losty MJ, Luste GJ, Mantsch PM, Martin JF, McHugh S, Menary SR, Morrison RJ, Nash T, Ong P, Pinfold J, Punkar G, Purohit MV, Raab JR, Santoro AF, Sidhu JS, Sliwa K, Sokoloff MD, Souza MH, Spalding WJ, Streetman ME, Stundzia AB, Witherell MS. Measurement of Ds+/- and D+/- decays to nonstrange states. Phys Rev Lett 1989; 62:125-128. [PMID: 10039929 DOI: 10.1103/physrevlett.62.125] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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