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	Provedor de dados Genet. Mol. Biol. (8) Biological Sciences (3) Anais da ABC (AABC) (3) BJMBR (3) Rev. Bras. Zool. (2) JBAG (2) Acta Amazonica (1) Biocell (1) ArchiMer (1) BABT (1) Ciência Rural (1) Neotropical Ichthyology (1) Phyton (1) Mais... Autor Gomes,Levy Carvalho (2) ANDRADE,VANESSA M. DE (1) Abessa,Denis M. de Souza (1) Abraham,S.K. (1) Ahuja,YR (1) Almeida,Terezinha M.B. de (1) Alves dos Santos,Raquel (1) Amaral,Ademir (1) Andrade Júnior, Sizenando José de; UESC (1) Andrade,L.E.C. (1) Andrioli,Nancy B (1) Araujo, Francisco Gerson (1) Assunção,Andrea (1) BELLE,MONICA B.B. (1) Baesse,Camilla Queiroz (1) Balarin,M.A.S. (1) Bhargava,SC (1) Bhuvaneswari,V. (1) Bonfim,Helder (1) Brammer,Sandra Patussi (1) Mais... Palavra-chave Micronuclei (28) Genotoxicity (6) Biomonitoring (4) Comet assay (4) Fish (3) Chromosomal aberrations (2) DNA damage (2) Nuclear abnormalities (2) 2.00.00.00-6 Ciências Biológicas Tradescantia pallida (1) Adduits à l'ADN (1) Aegilops tauschii (1) Agaricus blazei (1) Air pollution (1) Allium cepa (1) Allium cepa var. agrogarum L (1) Amifostine (1) Anticytotoxicity (1) Antigenotoxicity (1) Antioxidants (1) Avian hematology (1) Mais... Tipo do documento Info:eu-repo/semantics/article (24) Estudo ecofisiológico (1) Info:eu-repo/semantics/other (1) Text (1) Ano 2020 (1) 2019 (2) 2018 (1) 2017 (2) 2016 (1) 2014 (2) 2013 (2) 2012 (2) 2011 (2) 2010 (3) 2009 (1) 2008 (2) 2005 (4) 2004 (2) 1994 (1) Mais... País Brazil (23) Argentina (4) France (1) Idioma Inglês (25) Português (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 28 Primeira ... 1 2 ... Última Investigations on DNA damage and frequency of micronuclei in occupational exposure to electromagnetic fields (EMFs) emitted from video display terminals (VDTs) Genet. Mol. Biol. Lakshmi,NK; Tiwari,R; Bhargava,SC; Ahuja,YR. The potential effect of electromagnetic fields (EMFs) emitted from video display terminals (VDTs) to elicit biological response is a major concern for the public. The software professionals are subjected to cumulative EMFs in their occupational environments. This study was undertaken to evaluate DNA damage and incidences of micronuclei in such professionals. To the best of our knowledge, the present study is the first attempt to carry out cytogenetic investigations on assessing bioeffects in personal computer users. The study subjects (n = 138) included software professionals using VDTs for more than 2 years with age, gender, socioeconomic status matched controls (n = 151). DNA damage and frequency of micronuclei were evaluated using alkaline comet assay... Tipo: Info:eu-repo/semantics/article Palavras-chave: Electromagnetic fields (EMFs); Video display terminals (VDTs); Comet assay; DNA damage; Micronuclei. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100026 L'éthoxyrésorufine-o-déethylase, les adduits à l'ADN et les mocronuclei dans les organismes marins. Application à la surveillance des effets biologiques sur les côtes françaises ArchiMer Burgeot, Thierry. Three biomarkers [ethoxyresorufm-o-deethylase (EROD), DNA adducts and micronuclei (MN) were studied for biomonitoring applications along French coasts. EROD was developed at an experirnental stage in two pilot sites, Seine Bay and Fos sur Mer, using the dab (Limanda limanda), dragon et (Callionymus lyra), red mullet (Mullus barbatus) and comber (Serranus hepatus) as target species. Higbest EROD activity was observed in the subestuarial part of Seine Bay and at the stations closest to sources of pollution from Cortiou and Fos sur Mer. The suitable number of fish for detection of a significant difference between two EROD activities was deterrnined as a function of sampling variance and a preselected statistical power. A preliminary study on hepatocytes in a... Tipo: Text Palavras-chave: Ethoxyrésorufine-o-déethylase; Adduits à l'ADN; Micronuclei; Poisson; Moule; Huître; Biosurveillance; Ethoryresorufin-o-deethylase; DNA adducts; Micronuclei; Fish; Mussel; Oyster; Biomonitoring. Ano: 1994 URL: http://archimer.ifremer.fr/doc/00443/55462/56984.pdf Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment Rev. Bras. Zool. Ribeiro,Paulo Vitor Alves; Baesse,Camilla Queiroz; Cury,Márcia Cristina; Melo,Celine de. ABSTRACT Changes in the amounts and proportions of leukocytes, known as leucocyte profiles, have been documented for several bird species and have been used to measure stress levels in these animals. The present work ascertained the biological and ecological attributes that influence the leukocyte profile of Antilophia galeata (Lichtenstein, 1823), the helmeted manakin. This species has been deemed useful in ecological studies because it responds to environmental changes. Blood samples drawn from 89 individuals of A. galeata captured in a Cerrado forest fragment were subjected to analysis under optical microscopy to identify and quantify leukocytes and micronuclei. The number of lymphocytes was greater for males, non-reproductive individuals and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Avian hematology; Brazilian birds; Micronuclei; Stress; White blood cells. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100321 Micronucleated lymphocytes in parents of Down syndrome children BJMBR Silva-Grecco,R.L.; Navarro,G.C.; Cruz,R.M.; Balarin,M.A.S.. Down syndrome (DS) is the most common disease due to an autosomal aneuploidy in live born children and also the major known genetic cause of mental retardation. The risk of a DS pregnancy increases substantially with increasing maternal age. However, several women aged less than 35 years at conception have a child with DS. The micronucleus (MN) assay can identify chromosome breakage or chromosome malsegregation and is an ideal biomarker to investigate genomic instability. The aim of the present study was to determine the frequency of peripheral lymphocytes with MN in the parents of DS individuals. The subjects were 17 couples, 1 father and 9 mothers, and 24 couples who had at least one healthy child formed the control group. For each individual we... Tipo: Info:eu-repo/semantics/article Palavras-chave: Micronuclei; Parents of Down syndrome children; Chromosomal nondisjunction; Down syndrome. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000700002 Micronuclei formation in liver fibrosis samples from patients infected by hepatitis C virus Genet. Mol. Biol. Almeida,Terezinha M.B. de; Leitão,Regina Maria C.; Carrilho,Flair J.; Sonohara,Shigueko. Genetic research on fibrosis outset and its progression in chronic hepatitis (CH) by hepatitis C virus (HCV) are limited. The lack of cytogenetic data led us to investigate the presence of micronuclei (MNi), as a sign of genomic damage. Hepatocytes of hepatic parenchyma from 62 cases diagnosed with CH associated with HCV and displaying different degrees of fibrosis (F1-F4) were analyzed. These data were compared to 15 cases without fibrosis (F0). Twelve healthy liver parenchyma samples were included as control. All samples were obtained from paraffin-embedded archival material. Micronucleated hepatocytes (MN-Heps) were analyzed through Feulgen/Fastgreen staining. Results showed that the rates of MN-Heps in the F4 group were statistically significant (p... Tipo: Info:eu-repo/semantics/article Palavras-chave: Micronuclei; Hepatocytes; Chronic hepatitis C; Fibrosis progression; HCV-patients. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300003 Micronúcleos em tétrades de Tradescantia pallida (Rose) Hunt. cv. purpúrea Boom: alterações genéticas decorrentes de poluição aérea urbana - DOI: 10.4025/actascibiolsci.v30i3.5017 Biological Sciences Andrade Júnior, Sizenando José de; UESC; Santos Júnior, José Cleub Silva; UNEB; Oliveira, Jesiane da Luz; UNEB; Cerqueira, Eneida de Moraes Marcílio; UEFS; Meireles, José Roberto Cardoso; UEFS. A atmosfera urbana contém uma mistura de poluentes que inclui substâncias mutagênicas e carcinogênicas. Associação entre estas substâncias e problemas respiratório e cardiovascular, além do aumento de determinados tipos de cânceres, é estabelecida na literatura. Assim, o biomonitoramento é importante para avaliar o potencial genotóxico da atmosfera urbana. O Teste de Micronúcleo em Tradescantia (Trad-MCN) é um dos bioensaios usados para detecção de efeitos genotóxicos. Este teste é baseado na formação de micronúcleos resultante de quebra cromossômica na meiose das células-mãe do grão de pólen de inflorescências de Tradescantia ssp. Neste estudo, Trad-MCN foi utilizado para avaliar o potencial mutagênico do ar atmosférico em duas áreas de tráfego... Palavras-chave: 2.00.00.00-6 Ciências Biológicas Tradescantia pallida; Micronúcleo; Poluição atmosférica; Biomonitoramento; Genotoxicidade. Tradescantia pallida; Micronuclei; Urban air pollution; Biomonitoring; Genotoxicity. Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5017 Protective effects of steroidal alkaloids isolated from Solanum paniculatum L. against mitomycin cytotoxic and genotoxic actions Anais da ABC (AABC) VIEIRA,PABLINE M.; MARINHO,LORENA P.M.; FERRI,SUZANA C.S.; CHEN-CHEN,LEE. Solanum paniculatum L. is a plant species widespread throughout tropical America, especially in the Brazilian Cerrado region. It is used in Brazil for culinary purposes and in folk medicine to treat liver and gastric dysfunctions, as well as hangovers. Previous studies with S. paniculatum ethanolic leaf extract or ethanolic fruit extract demonstrated that they have no genotoxic activity neither in mice nor in bacterial strains, although their cytotoxicity and antigenotoxicity were demonstrated in higher doses. In order to assess the possible compounds responsible for the activities observed, we fractionated the ethanolic fruit extract of S. paniculatum, characterized by 1H and 13C NMR spectra, and evaluated two fractions containing steroidal alkaloids... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anticytotoxicity; Antigenotoxicity; Jurubeba; Micronuclei; Solanaceae. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200553 Tomato and garlic by gavage modulate 7,12-dimethylbenz[a]anthracene-induced genotoxicity and oxidative stress in mice BJMBR Bhuvaneswari,V.; Velmurugan,B.; Abraham,S.K.; Nagini,S.. Chemoprotection by dietary agents is a promising strategy for cancer prevention. The aim of the present study was to evaluate the combined effect of tomato and garlic against 7,12-dimethylbenz- [a]anthracene (DMBA)-induced genetic damage and oxidative stress in 12-14-week-old male Swiss albino mice. The animals were randomized into experimental and control groups and divided into eight groups of five animals each. Group 1 animals were injected intraperitoneally with 35 mg/kg body weight DMBA suspended in peanut oil as a single dose. Groups 2-4 animals received tomato (500 mg/kg body weight), garlic (125 mg/kg body weight) and a combination of tomato and garlic for 5 days by gavage, respectively, followed by DMBA 1.5 h after the final feeding. The doses of... Tipo: Info:eu-repo/semantics/other Palavras-chave: Antioxidants; DMBA; Garlic; Lipid peroxidation; Micronuclei; Tomato; Lycopene. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700012 Registros recuperados: 28 Primeira ... 1 2 ... Última

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