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Marcelo Hermes-Lima
University of Brasília
78Publications
28H-index
3,478Citations
Publications 78
Newest
Maximiliano Giraud-Billoud2
Estimated H-index: 2
(Facultad de Ciencias Médicas),
Georgina A. Rivera-Ingraham11
Estimated H-index: 11
+ 15 AuthorsBiswaranjan Paital2
Estimated H-index: 2
(Orissa University of Agriculture and Technology)
Abstract Freezing, dehydration, salinity variations, hypoxia or anoxia are some of the environmental constraints that many organisms must frequently endure. Organisms adapted to these stressors often reduce their metabolic rates to maximize their chances of survival. However, upon recovery of environmental conditions and basal metabolic rates, cells are affected by an oxidative burst that, if uncontrolled, leads to (oxidative) cell damage and eventually death. Thus, a number of adapted organisms...
Published on Dec 1, 2018in Scientific Reports4.01
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília),
Alexis F. Welker6
Estimated H-index: 6
(UnB: University of Brasília)
+ 2 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Juvenile tegu lizards (Salvator merianae) experience gradual and mild temperature changes from autumn to winter in their habitat. This tropical/subtropical reptile enter a state of dormancy, with an 80% reduction in metabolic rate, that remains almost constant during winter. The redox metabolism in non-mammalian vertebrates that hibernate under such distinguished conditions is poorly understood. We analyzed the redox metabolism in the intestine of juvenile tegus during different stages of their ...
Published on Aug 2, 2018in Frontiers in Physiology3.20
Marcus F. Oliveira29
Estimated H-index: 29
(UFRJ: Federal University of Rio de Janeiro),
Márcio Alberto Geihs6
Estimated H-index: 6
(UFRGS: Universidade Federal do Rio Grande do Sul)
+ 2 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Published on Jul 25, 2018in PeerJ2.35
Luana T. Dalvi3
Estimated H-index: 3
(UnB: University of Brasília),
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília)
+ 2 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Published on Jul 13, 2018in Frontiers in Physiology3.20
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília),
Marcus F. Oliveira29
Estimated H-index: 29
(UFRJ: Federal University of Rio de Janeiro)
+ 3 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Published on Sep 25, 2017in Frontiers in Physiology3.20
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília),
Marcus F. Oliveira29
Estimated H-index: 29
(UFRJ: Federal University of Rio de Janeiro)
+ 3 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Survival under stress, such as exposure to hypoxia, anoxia, freezing, dehydration, air exposure of water breathing organisms and estivation, is commonly associated to enhanced endogenous antioxidants, a phenomenon coined ‘preparation for oxidative stress’ (POS). The regulation of free radical metabolism seems to be crucial under these selective pressures, since this response is widespread among animals. A hypothesis of how POS works at the molecular level was recently proposed and relies on two ...
Published on May 1, 2017in Biochemistry and Molecular Biology Education0.95
Estêvão Cubas Rolim (UnB: University of Brasília), J. Oliveira2
Estimated H-index: 2
(UnB: University of Brasília)
+ 6 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
To boost active learning in undergraduate students, they were given the task of preparing blogs on topics of clinical biochemistry. This “experiment” lasted for 12 teaching-semesters (from 2008 to 2013), and included a survey on the blogs' usefulness at the end of each semester. The survey (applied in the 2008-2010 period) used a Likert-like questionnaire with eight questions and a 1-to-6 scale, from “totally disagree” to “fully agree.” Answers of 428 students were analyzed and indicated overall...
Luana T. Dalvi3
Estimated H-index: 3
(UnB: University of Brasília),
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília)
+ 3 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Abstract Polyphenols are reported to have some health benefits, which are link to their antioxidant properties. In the case of ellagic acid (EA), there is evidence that it has free radical scavenger properties and that it is able to form complexes with metal ions. However, information on a possible link between the formation of iron-EA complexes and their interference in Haber-Weiss/Fenton reactions was not yet determined. Thus, the present study investigated the in vitro antioxidant mechanism o...
Daniel C. Moreira6
Estimated H-index: 6
(UnB: University of Brasília),
Larissa Paola Rodrigues Venancio6
Estimated H-index: 6
+ 1 AuthorsMarcelo Hermes-Lima28
Estimated H-index: 28
(UnB: University of Brasília)
Abstract It is well known that many anoxia/hypoxia tolerant species when exposed to anoxia/hypoxia respond by increasing the activity/expression of antioxidant enzymes and/or glutathione levels—a phenomenon called “preparation for oxidative stress” (POS). This phenomenon was also observed during freezing exposure, severe dehydration, aerial exposure of water-breathing animals and estivation. However, as far as we know, there is no analysis available of the prevalence of POS among animal species....
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