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Calcium-doped zinc oxide nanocrystals as an innovative intracanal medicament: a pilot study
de Souza Gabriela Leite,Magalhães Thamara Eduarda Alves,Freitas Gabrielle Alves Nunes,Lemus Nelly Xiomara Alvarado,Barbosa Gabriella Lopes de Rezende,Silva Anielle Christine Almeida,Moura Camilla Chri 대한치과보존학회 2022 Restorative Dentistry & Endodontics Vol.47 No.4
Objectives This study investigated the cytotoxicity, radiopacity, pH, and dentinal tubule penetration of a paste of 1.0% calcium-doped zinc oxide nanocrystals (ZnO:1.0Ca) combined with propylene glycol (PRG) or polyethylene glycol and propylene glycol (PEG-PRG). Materials and Methods The pastes were prepared by mixing calcium hydroxide [Ca(OH)2] or ZnO:1.0Ca with PRG or a PEG-PRG mixture. The pH was evaluated after 24 and 96 hours of storage in deionized water. Digital radiographs were acquired for radiopacity analysis and bubble counting of each material. The materials were labeled with 0.1% fluorescein and applied to root canals, and images of their dentinal tubule penetration were obtained using confocal laser scanning microscopy. RAW264.7 macrophages were placed in different dilutions of culture media previously exposed to the materials for 24 and 96 hours and tested for cell viability using the MTT assay. Analysis of variance and the Tukey test (α = 0.05) were performed. Results ZnO:1.0Ca materials showed lower viability at 1:1 and 1:2 dilutions than Ca(OH)2 materials (p < 0.0001). Ca(OH)2 had higher pH values than ZnO:1.0Ca at 24 and 96 hours, regardless of the vehicle (p < 0.05). ZnO:1.0Ca pastes showed higher radiopacity than Ca(OH)2 pastes (p < 0.01). No between-material differences were found in bubble counting (p = 0.0902). The ZnO:1.0Ca pastes had a greater penetration depth than Ca(OH)2 in the apical third (p < 0.0001). Conclusions ZnO:1.0Ca medicaments presented higher penetrability, cell viability, and radiopacity than Ca(OH)2. Higher values of cell viability and pH were present in Ca(OH)2 than in ZnO:1.0Ca. Objectives This study investigated the cytotoxicity, radiopacity, pH, and dentinal tubule penetration of a paste of 1.0% calcium-doped zinc oxide nanocrystals (ZnO:1.0Ca) combined with propylene glycol (PRG) or polyethylene glycol and propylene glycol (PEG-PRG). Materials and Methods The pastes were prepared by mixing calcium hydroxide [Ca(OH)2] or ZnO:1.0Ca with PRG or a PEG-PRG mixture. The pH was evaluated after 24 and 96 hours of storage in deionized water. Digital radiographs were acquired for radiopacity analysis and bubble counting of each material. The materials were labeled with 0.1% fluorescein and applied to root canals, and images of their dentinal tubule penetration were obtained using confocal laser scanning microscopy. RAW264.7 macrophages were placed in different dilutions of culture media previously exposed to the materials for 24 and 96 hours and tested for cell viability using the MTT assay. Analysis of variance and the Tukey test (α = 0.05) were performed. Results ZnO:1.0Ca materials showed lower viability at 1:1 and 1:2 dilutions than Ca(OH)2 materials (p < 0.0001). Ca(OH)2 had higher pH values than ZnO:1.0Ca at 24 and 96 hours, regardless of the vehicle (p < 0.05). ZnO:1.0Ca pastes showed higher radiopacity than Ca(OH)2 pastes (p < 0.01). No between-material differences were found in bubble counting (p = 0.0902). The ZnO:1.0Ca pastes had a greater penetration depth than Ca(OH)2 in the apical third (p < 0.0001). Conclusions ZnO:1.0Ca medicaments presented higher penetrability, cell viability, and radiopacity than Ca(OH)2. Higher values of cell viability and pH were present in Ca(OH)2 than in ZnO:1.0Ca.
Carcass characteristics of lambs fed spineless cactus as a replacement for sugarcane
de Oliveira, Juliana Paula Felipe,Ferreira, Marcelo de Andrade,Alves, Adryanne Marjorie Souza Vitor,de Melo, Ana Caroline Cerqueira,de Andrade, Ida Barbosa,Urbano, Stela Antas,Suassuna, Juraci Marcos Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.4
Objective: Fresh sugarcane has been a new roughage source for ruminant's in semiarid regions, a function of the decline of sugar and alcohol industry in recent years. However, there is little data published regarding lambs fed sugarcane associated with spineless cactus. This study evaluated the effect of sugarcane replacement with spineless cactus (0%, 33%, 66%, and 100%) in the diet of Santa $In\hat{e}s$ lambs on carcass characteristics. Methods: Thirty-six non-castrated Santa Ines lambs at four months of age and an initial body weight of $22{\pm}2.3kg$ were assigned in a randomized block design and slaughtered after 70 days of confinement. The effects of spineless cactus as a replacement for sugarcane in the diet of the lambs on the carcass characteristics, commercial cut weight and yield, leg tissue composition, and carcass measurements were studied. Results: The study revealed quadratic behavior in slaughter body weight, and hot and cold carcass weight, with maximum values of 38.60, 18.60, and 18.11 kg and replacement levels of 40.18%, 44.42%, and 43.14%, respectively. The cold carcass yield presented an increasing linear behavior. The compactness index of carcass and leg presented a quadratic effect, with estimated maximal values of 0.28 and 0.57 kg/cm and replacement levels of 43.37% and 45.5%, respectively. The weights of commercial cuts of leg, loin, shoulder, and breast showed quadratic behavior, with maximum values of 2.79, 0.852, 1.46, and 1.30 kg and replacement levels of 49.5, 45.32, 39.0, and 40.7, respectively. For tissue composition, quadratic behavior was verified for leg weight, subcutaneous fat, and total fat. Conclusion: The replacement of sugarcane by spineless cactus at level 44% is recommended for finishing lambs considering that this level improved most of the carcass characteristics, weights, and yields of commercial cuts and leg tissue composition.
Henrique Barbosa de Freitas,Karina Márcia Ribeiro de Souza Nascimento,Charles Kiefer,Gilson Alexandre Gomes,Tiago Tedeschi dos Santos,Elis Regina Moraes Garcia,Thiago Rodrigues da Silva,Luanna Lopes P 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.5
Objective: This study was conducted to assess increasing doses of phytase added to broiler diets formulated with different levels of available phosphorus (avP), calcium (Ca), and sodium (Na), and the respective effects on performance parameters, quantitative carcass characteristics, ash and phosphorus deposition in tibia and weight of organs. Methods: Three different matrices were assumed for phytase with the following nutritional values: matrix A (MT A): 0.165% Ca, 0.150% avP, and 0.035% Na; matrix B (MT B): 0.215% Ca, 0.195% avP, and 0.045% Na; matrix C (MT C): 0.245% Ca, 0.225% avP, and 0.053% Na. There were six different diets: No phytase (formulated to meet the nutritional requirements); phytase 500 FTU/kg+MT A; phytase 1,000 FTU/kg+MT A; phytase 1,500 FTU/kg+MT A; phytase 1,000 FTU/kg+MT B and phytase 1,500 FTU/kg+MT C. Results: There was no significant phytase influence on performance, quantitative carcass characteristics, ash and phosphorus deposition in tibia and weight of the organ throughout the study period, however, it was possible to observe a tendency of improvement in body weight corrected feed conversion for broilers fed the phytase 1,500+MT C diet, where potentially these birds were more efficient on utilize phytic phosphorus and other nutrients bounded to phytate molecule, translating into improvement in performance, and there was also a non significant numerical improvement in body weight corrected feed conversion of broilers fed this diet. Conclusion: Broilers fed with diets formulated with different levels of avP, Ca, and Na and increasing doses of phytase have shown no change on performance, quantitative carcass characteristics, ash and phosphorus deposition in tibia and weight of organs.
Flavonoids Modulate the Proliferation of Neospora caninum in Glial Cell Primary Cultures
Rosan Barbosa de Matos,Suzana Braga-de-Souza,Bruno Pena Seara Pitanga,Victor Diogenes Amaral da Silv,Erica Etelvina Viana de Jesus,Alexandre Morales Pinheiro,Maria de Fatima Dias Costa,Ramon dos Santo 대한기생충학열대의학회 2014 The Korean Journal of Parasitology Vol.52 No.6
Anderson Junger Teodoro,Carolina de Oliveira Ramos Petra de Almeida,Raquel Martins Martinez,Vanessa Rosse de Souza,Thuane Passos Barbosa Lima,Bruna Almeida Nascimento,Gabriel de Alcantara Noblat,Giova 한국식품영양과학회 2024 Journal of medicinal food Vol.27 No.1
This study evaluates the effects of supplementation of murici (Byrsonima crassifolia) and tapereba´ (Spondiasmombin) pulp extracts on dietary intake, body composition, biochemical parameters, and markers of oxidative stress. Twoexperiments were conducted with a total of 80 healthy male Wistar rats and a 30-day supplementation. In the first experiment,animals were divided into control (C) group, murici group 50 mg/(kg$day) (50Mu), murici group 100 mg/(kg$day) (100Mu),and murici group 200 mg/(kg$day) (200Mu). In the second experiment, animals were divided into C group, tapereba´ group50 mg/(kg$day) (50Tap), tapereba´ group 100 mg/(kg$day) (100Tap), and tapereba´ group 200 mg/(kg$day) (200Tap). Resultsshowed lower feed intake in 50Mu, 100Mu, and 100Tap groups (13%, 12%, and 10%, respectively, P < .05) and lower bodyfat in 200Mu, 100Tap, and 200Tap groups (16.0%, 29.1%, and 27.1%, respectively, P < .05). Only the 100Tap group showedreduced adipose tissue content (30.4%; P < .05). Increased plasma antioxidant capacity was observed at all doses for bothfruits. Tapereba´ supplementation reduced ferrous oxidation–xylenol orange levels (50Tap: 8.4%, 100Tap: 16.1%, 200Tap:24.3%; P < .05) and increased thiol levels (50Tap: 39%, 100Tap: 31%; P < .05). Serum thiobarbituric acid reactive substanceslevels were reduced in all groups receiving tapereba´ (50Tap: 77.7%, 100Tap: 73.1%, 200Tap: 73.8%; P < .05) and murici(50Mu: 44.5%, 100Mu: 34%, 200Mu: 43%; P < .05). Therefore, it is suggested that the inclusion of these fruits in the diet cancontribute to health maintenance and disease prevention, through their effects on controlling food intake, improving bodycomposition, and in combating oxidative stress.
Gomes, Hewerton Barbosa,Rodrigues, Lorena Mendes,Massingue, Armando Abel,Lima, Italo Abreu,Ramos, Alcineia de Lemos Souza,Ramos, Eduardo Mendes Asian Australasian Association of Animal Productio 2020 Animal Bioscience Vol.33 No.2
Objective: This study investigates the technological and sensory profile of boneless dry-cured ham with different contents of lactulose added as a prebiotic ingredient. Methods: In addition to the control samples (without the addition of lactulose), three treatments were formulated to contain 2%, 4%, or 6% lactulose. Technological (lactulose content, instrumental color and texture profile analysis) and sensory (acceptance and check-all-thatapplies tests) analyses were performed on the final product. Results: The lactulose content in the finished product (1.86%±0.23%, 3.16%±0.18%, and 2.51%±1.35%) was lower than the lactulose originally added (2%, 4%, and 6%, respectively). The addition of 4% and 6% lactulose made (p<0.05) the products darker (lower L<sup>⋆</sup>) and redder (lower h) with higher hardness and chewiness values, when compared to control samples. The additions of 2% and 4% lactulose reduce the appearance acceptability of the products, but overall the treatments were well accepted. Conclusion: The use of up to 4% lactulose as a prebiotic in the production of boneless dry-cured hams provides an alternative to improving its nutritional value with little alteration in the technological characteristics and still meeting the sensory characteristics desired by consumers.
Initial performance of the COSINE-100 experiment
Adhikari, G.,Adhikari, P.,de Souza, E. Barbosa,Carlin, N.,Choi, S.,Choi, W. Q.,Djamal, M.,Ezeribe, A. C.,Ha, C.,Hahn, I. S.,Hubbard, A. J. F.,Jeon, E. J.,Jo, J. H.,Joo, H. W.,Kang, W. G.,Kang, W.,Kaue Springer-Verlag 2018 European Physical Journal C Vol.78 No.2
Thais Angelina Caetano,Adriana Barbosa Ribeiro,Maria Paula Della Vecchia,Tatiana Ramirez Cunha,Carolina de,rade Lima Chave,Raphael Freitas de Souza 대한치과보철학회 2016 The Journal of Advanced Prosthodontics Vol.8 No.6
PURPOSE The aim of this study was to determine whether two methods of documentation, print and electronic forms, for the assessment of patient-reported outcomes (PRO) in complete denture wearers provide comparable results. The study also quantified the time needed for filling the forms by each method. MATERIALS AND METHODS Thirty participants enrolled in a university clinic answered two forms (a questionnaire for denture satisfaction and OHIP-EDENT). They provided answers with two application methods in a random order, with a one-month interval between them: (1) electronic forms on a tablet computer; and (2) print forms. The methods were compared in terms of mean results, correlation/agreement, internal consistency, and spent time. RESULTS Mean results for both methods were similar for each denture satisfaction item (100-mm VAS) and OHIP-EDENT summary score. Both questionnaires presented good internal consistency regardless of the application method (Cronbach's α=0.86 or higher). Correlation and agreement between the methods regarding specific items was at least moderate for the majority of cases. Mean time for the electronic and print forms were 9.2 and 8.5 minutes, respectively (paired t test, P=.06, non-significant). CONCLUSION The electronic method is comparable to print forms for the assessment of important PRO of prosthetic treatment for edentulism, considering the results and time needed. Findings suggest the viability of replacing print forms with a tablet for applying the tested inventories in clinical trials.
Background model for the NaI(Tl) crystals in COSINE-100
Adhikari, P.,Adhikari, G.,Souza, E. Barbosa de,Carlin, N.,Choi, S.,Choi, W. Q.,Djamal, M.,Ezeribe, A. C.,Ha, C.,Hahn, I. S.,Hubbard, A. J. F.,Jeon, E. J.,Jo, J. H.,Joo, H. W.,Kang, W. G.,Kauer, M.,Kan Springer Berlin Heidelberg 2018 European Physical Journal C Vol.78 No.6
<P>The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2–6) keV energy interval. The dominant contributors in this energy region are found to be [FORMULA OMISSION]Pb and [FORMULA OMISSION]H.</P>
Multimorbidity and Its Impact on Workers: A Review of Longitudinal Studies
Cabral, Giorgione G.,de Souza, Ana C. Dantas,Barbosa, Isabelle R.,Jerez-Roig, Javier,Souza, Dyego L.B. Occupational Safety and Health Research Institute 2019 Safety and health at work Vol.10 No.4
Objective: This study investigates the impact of multimorbidity on work through a literature review of longitudinal studies. Methods: A systematic review was carried out in the databases Lilacs, SciELO, PAHO, PubMed/Medline, Scopus, Web of Science, and Cochrane. There were no restrictions regarding the year of publication or language to maximize the identification of relevant literature. The quality of studies was assessed by the protocol STrengthening the Reporting of OBservational studies in Epidemiology (STROBE). Results: An initial database search identified 7522 registries, and at the end of the analysis, 7 manuscripts were included in the review. Several studies have demonstrated direct and indirect impacts of multimorbidity on the health of workers. For this, the number of missed days due to health-related issues was evaluated, as well as the reduction in work productivity of the unhealthy worker, vulnerability of the worker with multimorbidity regarding higher indices of dismissal and recruitment difficulties, and incidence of early retirement and/or receipt of benefits due to disabilities. Conclusions: Multimorbidity has a negative impact on work, with damages to quality of life and work productivity, worsening the absenteeism/presenteeism indices, enhancing the chances of temporary or permanent leaves, and lowering employability and admission of individuals with multimorbidity.