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Zarina Tatia Barbosa Vieira Santos,Douglas Rangel Goulart,Eder Alberto Sigua Rodriguez,Leandro Pozzer,Sergio Olate,José,Ricardo Albergaria Barbosa 대한구강악안면외과학회 2017 대한구강악안면외과학회지 Vol.43 No.2
Objectives: The aim of this study was to compare the mechanical resistance of four different osteosyntheses modeled in two different sagittal split ramus osteotomy (SSRO) designs and to determine the linear loading in a universal testing machine. Materials and Methods: An in vitro experiment was conducted with 40 polyurethane hemimandibles. The samples were divided into two groups based on osteotomy design; Group I, right angles between osteotomies and Group II, no right angles between osteotomies. In each group, the hemimandibles were distributed into four subgroups according to the osteosynthesis method, using one 4-hole 2.0 mm conventional or locking plate, with or without one bicortical screw with a length of 12.0 mm (hybrid technique). Each subgroup contained five samples and was subjected to a linear loading test in a universal testing machine. Results: The peak load and peak displacement were compared for statistical significance using PASW Statistics 18.0 (IBM Co., USA). In general, there was no difference between the peak load and peak displacement related to osteotomy design. However, when the subgroups were compared, the osteotomy without right angles offered higher mechanical resistance when one conventional or locking 2.0 mm plate was used. One locking plate with one bicortical screw showed higher mechanical resistance (162.72±42.55 N), and these results were statistically significantly compared to one conventional plate with monocortical screws (P=0.016) and one locking plate with monocortical screws (P=0.012). The difference in peak displacement was not statistically significant based on osteotomy design or internal fixation system configuration. Conclusion: The placement of one bicortical screw in the distal region promoted better stabilization of SSRO. The osteotomy design did not influence the mechanical behavior of SSRO when the hybrid technique was applied.
Recognition of the Y chromosome in Turner syndrome using peripheral blood or oral mucosa tissue
Barbosa Lene Garcia,Siviero-Miachon Adriana Aparecida,Souza Maria Anunciação,Spinola-Castro Angela Maria 대한소아내분비학회 2021 Annals of Pediatirc Endocrinology & Metabolism Vol.26 No.4
Purpose: Turner syndrome is defined as total or partial loss of the second sex chromosome in a phenotypically female patient. Due to the possibility of hidden mosaicism of fragments of the Y chromosome and development of gonadoblastoma, we evaluated the presence of such fragments in 2 tissues with different embryonic origins, peripheral blood lymphocytes (mesoderm), and oral mucosal cells (ectoderm) using multiplex polymerase chain reaction.Methods: DNA samples were collected from 109 patients, and primers for the SRY, TSPY, and AMELX genes were used.Results: We found 14 patients (12.8%) with positive molecular markers for the Y chromosome. The study of tissues of different embryological origin showed the same degree of agreement, sensitivity, and specificity.Conclusion: Oral mucosa cells have a simpler method of collection that is less invasive and requires less time for DNA extraction at a lower cost.
Preoxygenation and Apneic Oxygenation in Emergency Airway Management
Barbosa Alexandra,Mosier Jarrod M. 대한응급의학회 2024 Clinical and Experimental Emergency Medicine Vol.11 No.2
Preoxygenation during the peri-intubation period is now considered a critical aspect of rapid sequence intubation and an important skill for emergency medicine and critical care providers. Peri-intubation hypoxemia carries significant risk, including cardiac arrest, and care must be taken for appropriate management including through apnea and initiation of laryngoscopy. Appropriate selection of preoxygenation devices should depend on underlying physiology to optimize oxygenation prior to intubation attempts. A PubMed MEDLINE search was completed with selection of articles from March 2008 to March 2023 describing various techniques for preoxygenation for intubation in the critical care and operating room setting with pregnant and obese patient populations included. Prehospital and pediatric populations were excluded in this review. This review provides an overview of methods of preoxygenation with their clinical indications as well as methods for determining end points to preoxygenation and apneic oxygenation. An overview of approaches to preoxygenation was included for patients considered to have a physiologically difficult airway and obese and pregnant patient populations.
Cannabaceae comparative analysis based on plastid genome evolution
Barbosa D’Oliveira Matielo Cristiane,Fernando Metz Geferson,Plá Matielo Lemos Rafael,de Carvalho Victoria Filipe,de Oliveira Camargo Flávio Anastácio,Marcos Stefenon Valdir 한국작물학회 2024 Journal of crop science and biotechnology Vol.27 No.1
Marijuana or hemp (Cannabis sativa L.) of the Cannabaceae family represents one of the most economically important crops within the group that comprises about 170 plant species, some of which are widely used in industry. It is the most consumed, cultivated, and trafficked illicit drug globally, having several hybrids and varieties resulting from crosses, making the distinctions between Cannabis species almost meaningless. In a former study, our research group sequenced and released two cpDNA from Cannabis apprehended by Brazilian Federal Police which we compare with all deposited Cannabaceae complete cpDNA in this work. In countries where planting, marketing, or consumption is prohibited, it is difficult for control and inspection bodies to identify the origin of different strains. Based on this problem, we aim to perform a comparative genomic analysis of the plastid DNA of the Cannabaceae family. We have found evidence that the ndhA intron seems to be an informative region for phylogenetic and evolutive studies in Cannabaceae family. With the results of the present work, we were able to establish the phylogenetic relationships for the Cannabaceae family using the plastid genomes of 35 accessions, between species, subspecies, varieties, and hybrids.
Barbosa Carolina Meneghin,Scatolin Renata Siqueira,Vieira-Junior Waldemir Francisco,Tanaka Marcia Hiromi,Ferraz Laura Nobre 대한치과보존학회 2023 Restorative Dentistry & Endodontics Vol.48 No.3
Objective This in vitro study aimed to evaluate the effects of different whitening toothpastes on a composite resin during at-home bleaching with 10% carbamide peroxide. Materials and Methods Sixty samples (7 mm × 2 mm) were used for color and roughness analyses, while another 60 samples (3 mm × 2 mm) were utilized to assess microhardness. The factors analyzed included toothpaste, for which 5 options with varying active agents were tested (distilled water; conventional toothpaste; whitening toothpaste with abrasive agents; whitening toothpaste with abrasive and chemical agents; and whitening toothpaste with abrasive, chemical, and bleaching agents). Brushing and application of whitening gel were performed for 14 days. Surface microhardness (SMH), surface roughness (Ra), and color (∆L*, ∆a*, ∆b, ∆E*ab, and ∆E00) were analyzed. The Ra and SMH data were analyzed using mixed generalized linear models for repeated measures, while the color results were assessed using the Kruskal-Wallis and Dunn tests. Results Between the initial and final time points, all groups demonstrated significant increases in Ra and reductions in SMH. No significant differences were found between groups for SMH at the final time point, at which all groups differed from the distilled water group. Conventional toothpaste exhibited the lowest Ra, while whitening toothpaste with abrasive agent had the highest value. No significant differences were observed in ∆L*, ∆a*, and ∆b. Conclusions While toothpaste composition did not affect the color stability and microhardness of resin composite, combining toothbrushing with whitening toothpaste and at-home bleaching enhanced the change in Ra. Objective This in vitro study aimed to evaluate the effects of different whitening toothpastes on a composite resin during at-home bleaching with 10% carbamide peroxide. Materials and Methods Sixty samples (7 mm × 2 mm) were used for color and roughness analyses, while another 60 samples (3 mm × 2 mm) were utilized to assess microhardness. The factors analyzed included toothpaste, for which 5 options with varying active agents were tested (distilled water; conventional toothpaste; whitening toothpaste with abrasive agents; whitening toothpaste with abrasive and chemical agents; and whitening toothpaste with abrasive, chemical, and bleaching agents). Brushing and application of whitening gel were performed for 14 days. Surface microhardness (SMH), surface roughness (Ra), and color (∆L*, ∆a*, ∆b, ∆E*ab, and ∆E00) were analyzed. The Ra and SMH data were analyzed using mixed generalized linear models for repeated measures, while the color results were assessed using the Kruskal-Wallis and Dunn tests. Results Between the initial and final time points, all groups demonstrated significant increases in Ra and reductions in SMH. No significant differences were found between groups for SMH at the final time point, at which all groups differed from the distilled water group. Conventional toothpaste exhibited the lowest Ra, while whitening toothpaste with abrasive agent had the highest value. No significant differences were observed in ∆L*, ∆a*, and ∆b. Conclusions While toothpaste composition did not affect the color stability and microhardness of resin composite, combining toothbrushing with whitening toothpaste and at-home bleaching enhanced the change in Ra.
Jaqueline Barbosa Dutra,Luiz Eduardo Bassay Blum,Leonardo Ferreira Lopes,André Freire Cruz,Carlos Hidemi Uesugi 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.6
This research aimed to evaluate the eff ectiveness of hot water (43–53 °C · 5 min −1 ; 47 °C · 2–6 min −1 ), 1-methylcyclopropene(1-MCP) at 50–300 nL L −1 and a combination of hot water (47/49 °C · 5 min −1 ) and phosphite (40% P 2 O 5 + 20% K 2 O; 40%P 2 O 5 + 10% Zn) in anthracnose control and the eff ect on fruit quality [fresh weight loss (FWL—%); pH, total soluble solids(TSS—°Brix), and titratable acidity (TA = % citric acid (CA)] of passion fruit ( Passifl ora edulis f. fl avicarpa ) at the postharveststage. When the fruits were in the stage of 0% dehydration and fully yellow peels, they were disinfested and inoculatedwith Colletotrichum gloeosporioides . They were then subjected to the above mentioned treatments; this was followedby incubation for 120 h. The diameter of the disease lesions was monitored daily. After the incubation, a physico-chemicalanalysis was performed. Hot-water treatment resulted in disease reduction at 47 and 49 °C for 4 and 5 min. The combinationof hot-water treatment at 47 °C (4 or 5 min) and application of the phosphite of K or Zn signifi cantly reduced diseaseseverity in fruits. The 1-MCP treatment reduced anthracnose severity in passion fruit mainly at 200 nL L −1 · 24 h −1 . None ofthe treatments signifi cantly changed the physico-chemical characteristics of the fruit [FWL (2.6–4.1%); pH (3.2–3.5), TSS(8.9–10.9 °Brix), and TA (1.8–2.5% CA)].
Emerson Barbosa da Silva,Felipe Ko Chen,Matheus Moreira Perez,Giuliana Petri,David Feder,Fernando Luiz Affonso Fonseca,Beatriz da Costa Aguiar Alves 한국식품영양과학회 2022 Journal of medicinal food Vol.25 No.9
New perspectives arise in the therapeutic practice for cancer, with the objective to not only treat patients, but also improve their quality of life. Guarana, a plant from Brazilian Amazon presents a wide range of pharmacological actions. This study evaluated the effect of Guarana (Paullinia cupana) extract, pure and dry Guarana (PC-18) extract and magnesium chloride (MgCl2) in mice of the Balb/c strain inoculated with the Ehrlich tumor regarding gene expression of inflammatory markers transforming growth factor-β1 and tumor necrosis factor alpha and oxidative stress (OS) and fatigue, superoxide dismutase, catalase, and glutathione peroxidase 4 and analyzed myelotoxicity and hepatotoxicity. After euthanasia, blood was collected to analyze the complete blood count and measured the levels of liver enzymes (alanine aminotransferase and aspartate aminotransferase). Hepatoprotective actions of the crude extract of P. cupana and PC-18 extract were noticed. The PC-18 and MgCl2 group showed the best result regarding animal welfare. There were no associations between compounds and gene expression regarding fatigue and OS. PC-18 reduced the tumor and may have an antitumor action. The crude extract of Guarana presented hepatoprotective action.