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Avaliação dos efeitos da cafeína na longevidade do nematódeo caenorhabditis elegans
(Universidade Federal de Minas GeraisUFMG, 2014-01-20)
Caffeine is present in large amount of products consumed in the diet and it has been considered the most widely used psychoactive drug worldwide. In mammals, low doses of caffeine promote antagonism of adenosine receptors, ...
The impact of P/Ca molar ratio on physicochemical and release properties of calcium polyphosphate coacervates
(2021-05-01)
This paper reports on the synthesis and characterization of gel-like calcium polyphosphate coacervates (Ca–PPCs) with three different [P]:[Ca] ratios as new matrixes for drug release. Caffeine and chlorhexidine were used ...
Determinação de cafeína em bebidas estimulantes por cromatografia líquida e espectrofotometria UV-Vis
(Universidade Tecnológica Federal do ParanáLondrinaBrasilLicenciatura em QuímicaUTFPR, 2018-12-07)
Caffeine is one of the most legal drugs consumed in the world and its composition is present in some plants like guarana, mate, coffee and herbs, however, played an important role in producing beverages from an antiquity. ...
Effects of intravenous administration of caffeine on physiologic variables in exercising horses
(Amer Veterinary Medical Assoc, 2008-12-01)
Objective-To investigate the effect of acute administration of caffeine on the athletic performance of Arabian horses.Animals-12 healthy adult Arabian horses that were trained for exercise on a treadmill.Procedures-By use ...
Effects of intravenous administration of caffeine on physiologic variables in exercising horses
(Amer Veterinary Medical Assoc, 2008-12-01)
Objective-To investigate the effect of acute administration of caffeine on the athletic performance of Arabian horses.Animals-12 healthy adult Arabian horses that were trained for exercise on a treadmill.Procedures-By use ...
Effect of acute caffeine intake on the fat oxidation rate during exercise: A systematic review and meta-analysis
(MDPI AG, 2020-11-24)
A number of previous investigations have been designed to determine the effect of acute caffeine intake on the rate of fat oxidation during exercise. However, these investigations have shown contradictory results due to ...
Caffeine improved time to exhaustion but did not change alternative maximal accumulated oxygen deficit estimated during a single supramaximal running bout
(2016-12-01)
The aim of the current study was to investigate the effects of acute caffeine supplementation on anaerobic capacity determined by the alternative maximal accumulated oxygen deficit (MAODALT) in running effort. Eighteen ...
Effects of Caffeine Ingestion on Anaerobic Capacity in a Single Supramaximal Cycling Test
(Frontiers Media Sa, 2018-09-20)
The aim of this study was to verify the effects of caffeine on anaerobic capacity estimated by the sum of the estimated glycolytic [E-[La]] and phosphagen [E-PCr] metabolism based on blood lactate and excess post-oxygen ...
Caffeine determination by flow injection analysis employing Bovine Serum Albumin as a fluorophore
(Elsevier Science, 2016-07)
A new methodology for caffeine determination was developed based on the quenching effect on fluorescent emission of the molecule of Bovine Serum Albumin at λem = 338 nm (λex = 280). A flow injection disposition was designed ...
Comparison of the quantification of caffeine in human plasma by gas chromatography and ELISA
(Associação Brasileira de Divulgação Científica (ABRADIC), 2001-06-01)
In the present study we evaluated the precision of the ELISA method to quantify caffeine in human plasma and compared the results with those obtained by gas chromatography. A total of 58 samples were analyzed by gas ...