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| CAVALCANTI,MARIANA B.; FERNANDES,THIAGO S.; SILVA,EDVANE B.; AMARAL,ADEMIR. |
| The aim of this research was to evaluate the relationship between p53 protein levels and absorbed doses from in vitro irradiated human lymphocytes. For this, samples of blood from 23 donors were irradiated with 0.5; 1; 2; and 4 Gy from a Cobalt-60 source, and the percentages of lymphocytes expressing p53 were scored using Flow Cytometry. The subjects were divided into 3 groups, in accordance with the p53 levels expressed per radiation dose: low (Group I), high (Group II), and excessive levels (Group III). For all groups, the analyses showed that the p53 expression levels increase with the absorbed dose. Particularly for groups I and II, the correlation between this protein expression and the dose follows the linear-quadratic model, such as for radioinduced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological Dosimetry; Cellular radiobiology; Flow Cytometry; P53 protein; Radiosensitivity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401783 |
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| SOARES,IVANESA G.M.; SILVA,EDVANE B.; AMARAL,ADEMIR J.; MACHADO,ERILANE C.L.; SILVA,JOSENILDA M.. |
| ABSTRACT This work evaluated the effects of ionizing radiation on the physico-chemical and sensory characteristics of the potato cultivar Ágata (Solanum tuberosum L.), including budding and deterioration, with the end goal of increasing shelf life. For this, four groups of samples were harvested at the maturation stage. Three of them were separately exposed to a Co-60 source, receiving respective doses of 0.10, 0.15 and 2.00 kGy, while the non-irradiated group was kept as a control. All samples were stored for 35 days at 24 °C (± 2) and at 39% relative humidity. The following aspects were evaluated: budding, rot, loss of weight, texture, flesh color, moisture, external and internal appearance, aroma, soluble solids, titratable acidity, vitamin C, protein,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Irradiation; Potato; Spoilage; Storage. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300941 |
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