Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Ademir Amaral"'
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 87, Iss 3, Pp 1783-1790 (2015)
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 so
Externí odkaz:
https://doaj.org/article/c9bb3fbca88343608dbaeaf8d32090df
Autor:
Thiago de Salazar e Fernandes, Isvânia Maria Serafim da Silva, Renato Barros Moraes, Leandro Álvaro de Alcântara Aguiar, Ademir Amaral, Catão Temístocles Barbosa, Romildo de Albuquerque Nogueira
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 56, Iss 1, Pp 85-92 (2013)
This study investigated the dynamical process of chromosome condensation after colcemid treatment. Two pairs of human chromosomes, #2 and #3, were highlighted for the accurate identification by fluorescence in situ hybridization (FISH). A computerize
Externí odkaz:
https://doaj.org/article/6517bc8f2506424a9d30ebdee7772848
Autor:
Neyliane Gonçalves dos Santos, Ademir Amaral, Mariana Brayner Cavalcanti, Maria Amélia Batista Neves, Cíntia Gonsalves de Faria Machado
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 51, Iss spe, Pp 109-120 (2008)
The aim of this work was to establish a protocol to evaluate ionizing radiation effects on P-glycoprotein (P-gp) activity. For this, human peripheral blood samples were irradiated in vitro with different doses and P-gp activity was analyzed for CD4 a
Externí odkaz:
https://doaj.org/article/609c14f0a9c7435fb015e64943cda710
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 51, Iss spe, Pp 91-96 (2008)
Biodosimetry is the evaluation of absorbed dose using bioindicators. Among chromosomal aberrations, scoring of dicentrics from peripheral human blood has been used as gold standard for biodosimetry, although in case of large scale incidents its use p
Externí odkaz:
https://doaj.org/article/9063583360784461bba8152da0b7d95e
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 51, Iss spe, Pp 97-102 (2008)
This study has explored the possibility of combining culture times with extending the duration for which Colcemid is present in cell culture in order to obtain better dose estimations following partial-body exposures. Irradiated and unirradiated bloo
Externí odkaz:
https://doaj.org/article/d1998b938bfb4efda317c1a9cdd265bd
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 50, Iss spe, Pp 129-134 (2007)
The objective of this work was to evaluate radiation doses delivered to technologists engaged in different tasks involving positron emission tomography (PET) studies with FDG (fluorodeoxyglucose). This investigation was performed in two French nuclea
Externí odkaz:
https://doaj.org/article/9954abfa3d3e46beb543d826c34ee2cf
Autor:
Ademir Amaral
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 48, Iss spe2, Pp 229-234 (2005)
The increase in ionizing radiation (IR) applications, especially nuclear, has been followed by the growth of public concern for the potential associated risks. The public’s perception of such risks is often based on the philosophy that IR is harmfu
Externí odkaz:
https://doaj.org/article/bc0425d6b0804a7c8b8697419237be81
Autor:
Isvânia Silva-Barbosa, Símey Pereira-Magnata, Ademir Amaral, Graça Sotero, Homero Cavalcanti Melo
Publikováno v:
Genetics and Molecular Biology, Vol 28, Iss 3, Pp 452-457 (2005)
Scoring of unstable chromosome aberrations (dicentrics, rings and fragments) and micronuclei in circulating lymphocytes are the most extensively studied biological means for estimating individual exposure to ionizing radiation (IR), which can be used
Externí odkaz:
https://doaj.org/article/ee5d2c322f0e47aca3f3ac8a15856d05
Autor:
Ademir Amaral
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 45, Iss spe, Pp 119-124 (2002)
Biological dosimetry (biodosimetry) is based on investigations of induced biological effects (biomarkers) in order to correlate them with radiation dose. Among the indicators employed in biodosimetry, scoring of chromosome aberrations is the most rel
Externí odkaz:
https://doaj.org/article/dce3f2d88b7d41d2b849c72c24125f15
Autor:
Rafael de Freitas e Silva, Neyliane Frassinetti Gonçalves dos Santos, Valéria Rêgo Alves Pereira, Ademir Amaral
Publikováno v:
Dose-Response, Vol 12 (2014)
P53 protein has an intrinsic role in modulating the cellular response against DNA radioinduced damages and has been pointed out as an indirect indicator of individual radiosensitivity. The rate of cell proliferation is also a parameter that has been
Externí odkaz:
https://doaj.org/article/818af308594f4e2088c42f561d8d7f11