Análise do comportamento da cor de restaurações cerâmicas sem metal avaliadas por diferentes métodos: estudo clínico prospectivo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Plasma rico em plaquetas (PRP) aplicado na artroplastia total do joelho

Objective: To evaluate the efficacy of platelet-rich plasma regarding healing, pain and hemostasis after total knee arthroplasty, by means of a blinded randomized controlled and blinded clinical study. Methods: Forty patients who were going to undergo implantation of a total knee prosthesis were selected and randomized. In 20 of these patients, platelet-rich plasma was applied before the joint capsule was closed. The hemoglobin (mg/dL) and hematocrit (%) levels were assayed before the operation and 24 and 48hours afterwards. The Womac questionnaire and a verbal pain scale were applied and knee range of motion measurements were made up to the second postoperative month. The statistical analysis compared the results with the aim of determining whether there were any differences between the groups at each of the evaluation times. Results: The hemoglobin (mg/dL) and hematocrit (%) measurements made before the operation and 24 and 48hours afterwards did not show any significant differences between the groups (p > 0.05). The Womac questionnaire and the range of motion measured before the operation and up to the first two months also did not show any statistical differences between the groups (p > 0.05). The pain evaluation using the verbal scale showed that there was an advantage for the group that received platelet-rich plasma, 24hours, 48hours, one week, three weeks and two months after the operation (p < 0.05). Conclusions: In the manner in which the platelet-rich plasma was used, it was not shown to be effective for reducing bleeding or improving knee function after arthroplasty, in comparison with the controls. There was an advantage on the postoperative verbal pain scale.

Desenvolvimento de procedimentos e métodos analíticos no campo forense aplicando os princípios da química verde

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Impacto de diferentes métodos de avaliação da obesidade abdominal após síndromes coronarianas agudas

Background: Abdominal obesity is an important cardiovascular risk factor. Therefore, identifying the best method for measuring waist circumference (WC) is a priority. Objective: To evaluate the eight methods of measuring WC in patients with acute coronary syndrome (ACS) as a predictor of cardiovascular complications during hospitalization. Methods: Prospective study of patients with ACS. The measurement of WC was performed by eight known methods: midpoint between the last rib and the iliac crest (1), point of minimum circumference (2); immediately above the iliac crest (3), umbilicus (4), one inch above the umbilicus (5), one centimeter above the umbilicus (6), smallest rib and (7) the point of greatest circumference around the waist (8). Complications included: angina, arrhythmia, heart failure, cardiogenic shock, hypotension, pericarditis and death. Logistic regression tests were used for predictive factors. Results: A total of 55 patients were evaluated. During the hospitalization period, which corresponded on average to seven days, 37 (67%) patients had complications, with the exception of death, which was not observed in any of the cases. Of these complications, the only one that was associated with WC was angina, and with every cm of WC increase, the risk for angina increased from 7.5 to 9.9%, depending on the measurement site. It is noteworthy the fact that there was no difference between the different methods of measuring WC as a predictor of angina. Conclusion: The eight methods of measuring WC are also predictors of recurrent angina after acute coronary syndromes. Key words: Evaluation; Acute Coronary Syndrome; Abdominal Circumference

Alterações nuricionais em casca e polpa de cenoura decorrentes de diferentes métodos de cozimento

The aim of this study was to verify the carrot cooking most suitable method to minimize nutrient losses. Carrot peel slices were subjected to pre cooking tests that were initiated with 0.5 min of duration and then increased in 0.5 min successively. The carrot pieces texture was monitored during the pre tests so all would havethe same texture independent of the type of cooking. The degree of softennes was evaluated by pressuring the pieces between the toes. The carrot pulp and pell were subjected to four types of heat treatment (pressure, immersion, microwave, and steam), after that they were pounded with a food processor and stored at -18 ºC. The nutritional analyses were as follow: The evalu determination of proteins, lipids, fibers, sugars reducers, total of ascorbic acid content and minerals (iron, calcium, zinc, magnesium, potassium, phosphorus, and calcium). The analyses were accomplished with fresh carrot and after cooking with the different methods. The peel of the carrot presented as amounts of proteins, lipids, fibers percentages, sugars reducers, total and ascorbic acid content equivalent to the pulp. In addition, the minerals content was superior in the peel in relation to the pulp, presenting respective percentages of 38,10%, 95,12%, 47,04%, 58,88%, 70,27% and 21,27%. There were nutrient losses in relation to the raw vegetable, when the carrot pieces were submitted to the different cooking methods. The methods of steaming and microwave had lower nutritional losses.

Métodos de debicagem: desenvolvimento e desempenho produtivo de poedeiras leves e semipesadas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)