Search Results - "Gomes, Osmar F"

Portable Multispectral Colorimeter for Metallic Ion Detection and Classification by Braga, Mauro S, Jaimes, Ruth F V V, Borysow, Walter, Gomes, Osmar F, Salcedo, Walter J

“…This work deals with a portable device system applied to detect and classify different metallic ions as proposed and developed, aiming its application for…”
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Evaluation of chemical constituents and antioxidant activity of coconut water (Cocus nucifera L.) and caffeic acid in cell culture by Santos, João L A, Bispo, Vanderson S, Filho, Adriano B C, Pinto, Isabella F D, Dantas, Lucas S, Vasconcelos, Daiane F, Abreu, Fabíula F, Melo, Danilo A, Matos, Isaac A, Freitas, Florêncio P, Gomes, Osmar F, Medeiros, Marisa H G, Matos, Humberto R

“…Coconut water contains several uncharacterized substances and is widely used in the human consumption. In this paper we detected and quantified ascorbic acid…”
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[13C2]-Acetaldehyde promotes unequivocal formation of 1,N2-propano-2'-deoxyguanosine in human cells by Garcia, Camila Carrião M, Angeli, José Pedro F, Freitas, Florêncio P, Gomes, Osmar F, de Oliveira, Tiago F, Loureiro, Ana Paula M, Di Mascio, Paolo, Medeiros, Marisa H G

“…Acetaldehyde is an environmentally widespread genotoxic aldehyde present in tobacco smoke, vehicle exhaust and several food products. Endogenously,…”
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DNA damage and 2′-deoxyguanosine oxidation induced by S(IV) autoxidation catalyzed by copper(II) tetraglycine complexes: Synergistic effect of a second metal ion by Moreno, Ruben G.M., Alipázaga, María V., Gomes, Osmar F., Linares, Edlaine, Medeiros, Marisa H.G., Coichev, Nina

“…S(IV) ( SO 2 , HSO 3 - and SO 3 2 - ) autoxidation catalyzed by Cu(II)/tetraglycine complexes in the presence of DNA or 2′-deoxyguanosine (dGuo) resulted in…”
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[13C2]- Acetaldehyde Promotes Unequivocal Formation of 1,N 2-Propano-2′-deoxyguanosine in Human Cells by Garcia, Camila Carrião M, Angeli, José Pedro F, Freitas, Florêncio P, Gomes, Osmar F, de Oliveira, Tiago F, Loureiro, Ana Paula M, Di Mascio, Paolo, Medeiros, Marisa H. G

“…Acetaldehyde is an environmentally widespread genotoxic aldehyde present in tobacco smoke, vehicle exhaust and several food products. Endogenously,…”
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Oxidative stress in digestive gland and gill of the brown mussel ( Perna perna) exposed to air and re-submersed by Almeida, Eduardo A., Bainy, Afonso Celso Dias, Dafre, Alcir Luiz, Gomes, Osmar F., Medeiros, Marisa H.G., Di Mascio, Paolo

“…Mussels Perna perna were exposed to air for 24 h showing a clear increase in the levels of lipid peroxidation and oxidative DNA damage, measured as…”
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2‘-Deoxyguanosine, 2‘-Deoxycytidine, and 2‘-Deoxyadenosine Adducts Resulting from the Reaction of Tetrahydrofuran with DNA Bases by Hermida, Silvia A. S, Possari, Ediliz P. M, Souza, Denise B, Campos, Ivan P. de Arruda, Gomes, Osmar F, Di Mascio, Paolo, Medeiros, Marisa H. G, Loureiro, Ana Paula M

“…A recent study showed that tetrahydrofuran (THF), a widely used solvent, is carcinogenic in experimental animals. Despite its carcinogenic activity, there is a…”
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trans,trans-2,4-Decadienal-Induced 1,N 2-Etheno-2‘-deoxyguanosine Adduct Formation by Loureiro, Ana Paula M, Di Mascio, Paolo, Gomes, Osmar F, Medeiros, Marisa H. G

“…A number of ring-extended DNA adducts resulting from the reaction of α,β-unsaturated aldehydes, or their epoxides, with DNA bases have been characterized in…”
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Induction of 1,N(2)-etheno-2'-deoxyguanosine in DNA exposed to beta-carotene oxidation products by Marques, Sabrina A, Loureiro, Ana Paula M, Gomes, Osmar F, Garcia, Camila C M, Di Mascio, Paolo, Medeiros, Marisa H G

“…Epidemiological studies testing the effect of beta-carotene in humans have found a relative risk for lung cancer in smokers supplemented with beta-carotene. We…”
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Structural Characterization of Diastereoisomeric Ethano Adducts Derived from the Reaction of 2‘-Deoxyguanosine with trans,trans-2,4-Decadienal by Loureiro, Ana Paula M, de Arruda Campos, Ivan P, Gomes, Osmar F, Di Mascio, Paolo, Medeiros, Marisa H. G

“…Background levels of exocyclic DNA adducts have been detected in rodent and human tissues. Several studies have focused on bifunctional electrophiles generated…”
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Structural Characterization of an Etheno-2‘-deoxyguanosine Adduct Modified by Tetrahydrofuran by Loureiro, Ana Paula M, de Arruda Campos, Ivan P, Gomes, Osmar F, Possari, Ediliz P. M, Di Mascio, Paolo, Medeiros, Marisa H. G

“…The reaction of 2‘-deoxyguanosine with the α,β-unsaturated aldehydes trans-2-octenal, trans-2-nonenal, trans-2-decenal, trans,trans-2,4-nonadienal, and…”
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Lycopene Inhibits DNA Damage and Liver Necrosis in Rats Treated with Ferric Nitrilotriacetate by Matos, Humberto R., Capelozzi, Vera L., Gomes, Osmar F., Mascio, Paolo Di, Medeiros, Marisa H.G.

“…Experimental and epidemiological evidence suggests that lycopene, a carotenoid present in tomatoes, tomato products, and several fruits and vegetables, may…”
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trans,trans-2,4-decadienal-induced 1,N(2)-etheno-2'-deoxyguanosine adduct formation by Loureiro, A P, Di Mascio, P, Gomes, O F, Medeiros, M H

“…A number of ring-extended DNA adducts resulting from the reaction of alpha,beta-unsaturated aldehydes, or their epoxides, with DNA bases have been…”
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Induction of 1,N 2‐etheno‐2′‐deoxyguanosine in DNA exposed to β‐carotene oxidation products by Marques, Sabrina A, Loureiro, Ana Paula M, Gomes, Osmar F, Garcia, Camila C.M, Di Mascio, Paolo, Medeiros, Marisa H.G

“…Epidemiological studies testing the effect of β‐carotene in humans have found a relative risk for lung cancer in smokers supplemented with β‐carotene. We…”
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Induction of 1, N2-etheno-2′-deoxyguanosine in DNA exposed to β-carotene oxidation products by Marques, Sabrina A, Loureiro, Ana Paula M, Gomes, Osmar F, Garcia, Camila C.M, Di Mascio, Paolo, Medeiros, Marisa H.G

“…Epidemiological studies testing the effect of β-carotene in humans have found a relative risk for lung cancer in smokers supplemented with β-carotene. We…”
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trans,trans-2,4-Decadienal-Induced 1,N2-Etheno-2‘-deoxyguanosine Adduct Formation by LOUREIRO, Ana Paula M., DI MASCIO, Paolo, GOMES, Osmar F., MEDEIROS, Marisa H. G.

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Photoluminescence-based oxygen sensor with platinum-octaethylporphyrin dye integrated into oxidized porous silicon layer by Braga, Mauro S., Matos, Keth R. M., Borges, Victor F., Gomes, Osmar F., Salcedo, Walter J.

“…Photoluminescence quenching-based sensors for oxygen detection are generally made with organic dyes molecules that act as active molecules. These molecules are…”
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