15 Result(s)
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Eduardo Alves de Almeida
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Article
Chemical profile of craft brewer’s spent yeast and its antioxidant and antiproliferative activities
Brewer’s spent yeast (BSY) is a prevalent by-product of the brewing industry currently used in animal feed as a cheap source of protein. In this study, chemical composition of BSY from two different beer produ...
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Chapter
Upconverting Nanoparticles as Sources of Singlet Oxygen
Upconverting nanoparticles (UCNPs) exhibit a spectroscopic phenomenon described by the absorption of two or more photons and, subsequently, the emission of higher energy photons. In this way, it is possible to...
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Article
Fish biomarker responses reflect landscape anthropic disturbance in savanna streams
Disturbance in the landscape surrounding streams can interfere with water quality and cause harm to aquatic organisms. In this study, we evaluate the influence of land use on the genetic and biochemical biomar...
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Article
Thermal environment in mobile shelters with different cover types used for chicken housing at the semi-extensive rearing system
In tropical climate countries, animal production faces a huge challenge, being the high solar irradiation levels an important factor that negatively influences the welfare and animal performance. The purpose o...
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Article
Effects of methylphenidate on the aggressive behavior, serotonin and dopamine levels, and dopamine-related gene transcription in brain of male Nile tilapia (Oreochromis niloticus)
The occurrence of pharmaceuticals in the aquatic environment has increased considerably in the last decades, causing negative biochemical, physiological, and behavioral effects in aquatic organisms. In this st...
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Article
Evaluation of melatonin and AFMK levels in women with breast cancer
Changes in the circadian rhythm may contribute to the development of cancer and are correlated with the high risk of breast cancer (BC) in night workers. Melatonin is a hormone synthesized by the pineal gland ...
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Article
E2 potentializes benzo(a)pyrene-induced hepatic cytochrome P450 enzyme activities in Nile tilapia at high concentrations
In the aquatic environment, biotransformation enzymes are established biomarkers for assessing PAH exposure in fish, but little is known about the effect of 17β-estradiol (E2) on these enzymes during exposure ...
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Article
Interaction of Curcumin with Manganese May Compromise Metal and Neurotransmitter Homeostasis in the Hippocampus of Young Mice
Manganese (Mn) exposure is related to industrial activities, where absorption by inhalation has high relevance. Manganism, a syndrome caused as a result of excessive accumulation of Mn in the central nervous s...
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Article
Open AccessGenetic and biochemical markers of hydroxyurea therapeutic response in sickle cell anemia
Sickle cell anemia (SCA) presents a complex pathophysiology which can be affected by a number of modifying factors, including genetic and biochemical ones. In Brazil, there have been no studies verifying βS-haplo...
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Article
Fullerene and omega-3 and omega-6 fatty acids on fish brain antioxidant status
The carbon nanomaterial fullerene (C60) can act as anti or pro-oxidant. The aim of this study was to evaluate, in cell suspensions of carp brains (Cyprinus carpio, Cyprinidae), the effect of C60 after a pre-treat...
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Article
Oxidative stress and antioxidant capacity in sickle cell anaemia patients receiving different treatments and medications for different periods of time
To evaluate, in a longitudinal study, the profile of lipid peroxidation and antioxidant capacity markers in sickle cell anaemia patients receiving different treatments and medication over different time period...
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Article
Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil
Considering that diesel oil is one of the most common aquatic contaminants, we compare the oxidative stress between two species of fish with different habitats (Pterygoplichthys anisitsi, benthic and Oreochromis ...
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Article
Open AccessMeasurement of melatonin in body fluids: Standards, protocols and procedures
The circadian rhythm of melatonin in saliva or plasma, or of the melatonin metabolite 6-sulfatoxymelatonin (a6MTs) in urine, is a defining feature of suprachiasmatic nucleus (SCN) function, the body’s endogeno...
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Article
Esterase inhibition in tadpoles of Scinax fuscovarius (Anura, Hylidae) as a biomarker for exposure to organophosphate pesticides
Organophosphate pesticides (OPs) are among the most used insecticides in agriculture, causing the inhibition of esterases like acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carboxylesterase (Cb...
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Article
Oxidative DNA damage levels and catalase activity in the clam Ruditapes decussatus as pollution biomarkers of Tunisian marine environment
Levels of the oxidative DNA damage 7, 8-dihydro-8-oxo-2′-deoxyguanosine (8-oxodG) and catalase (CAT) activity were measured in the digestive gland and gills of clams Ruditapes decussatus, related to the presence ...
