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Serum caffeine and paraxanthine concentrations and menstrual cycle function: correlations with beverage intakes and associations with race, reproductive hormones, and anovulation in the BioCycle Study
anovulation biological markers caffeine menstrual cycle 1,7-dimethylxanthine
2016/5/25
Background: Clinicians often recommend limiting caffeine intake while attempting to conceive; however, few studies have evaluated the associations between caffeine exposure and menstrual cycle functio...
Dose response effects of a caffeine-containing energy drink on muscle performance: a repeated measures design
Caffeine Sports nutrition Force productio
2015/7/23
Energy drinks have become the most used caffeine-containing beverages in the sport setting. The
aim of this study was to determine the effects of two doses of a caffeine-containing energy drink on mu...
Effects of carbohydrates-BCAAs-caffeine ingestion on performance and neuromuscular function during a 2-h treadmill run: a randomized, doubleblind, cross-over placebo-controlled study
erformance and neuromuscular randomized
2015/7/22
Carbohydrates (CHOs), branched-chain amino acids (BCAAs) and caffeine are known to improve
running performance. However, no information is available on the effects of a combination of these ingredien...
With more than 2.25 billion cups consumed daily worldwide, coffee is the principal agricultural product of many tropical countries. According to estimates by the International Coffee Organization, mor...
It's all coming back to me now: Researchers find caffeine enhances memory（图）
caffeine memory
2014/1/12
For some, it’s the tradition of steeping tealeaves to brew the perfect cup of tea. For others, it’s the morning shuffle to a coffee maker for a hot jolt of java. Then there are those who like their wa...
Gold(III) Complex of Caffeine: Synthesis, Isolation and Spectroscopic Characterization
Caffeine gold(III)-complex, IR-LD spectroscopy 1H-NMR
2007/2/28
Au(III)-caffeine complex was synthesized and characterized by means of solid-state linear-dichroic infrared spectral analysis (IRLD), 1H-NMR, MS, DSC and TGA methods. The caffeine (I) is monodentate a...
HPLC Method for the Analysis of Paracetamol, Caffeine and Dipyrone
Paracetamol Acetaminophen Caffeine Dipyrone High performance liquid chromatography Validation
2002/8/30
An accurate, simple, reproducible and sensitive method for the determination of paracetamol, caffeine and dipyrone was developed and validated. Paracetamol, caffeine and dipyrone were separated using ...
Derivative Spectrophotometric Determination of Caffeine in Some Beverages
Caffeine Beverages Derivative Spectrophotometry
2002/4/30
Caffeine content was determined in cola, coffee and tea by second and third order derivative spectrophotometry without using any separation or background correction technique and reagent. The method i...