| 单词 | caffeine |
| 释义 | caffeine noun[U] uk/ˈkæf.iːn/us/ˈkæf.iːn/achemical,foundforexampleinteaandcoffee, that is astimulant(= something that makespeoplemoreactive) 咖啡因，咖啡碱Specific types of drug
caffeine| American Dictionarycaffeine noun[U] us/kæˈfin,ˈkæf·in/achemicalfoundincoffeeandteathat is astimulant(= something thattendsto make you moreactive) Examplesofcaffeinecaffeine These results clearly indicate thatcaffeinetreatment during prolonged maturation culture decreases the frequency of development to the blastocyst stage but not embryo quality. From theCambridge English Corpus The majority ofcaffeine-treated oocytes had a germinal vesicle with a nucleolus surrounded by ring- or horseshoe-shaped chromatin. From theCambridge English Corpus However, an association ofcaffeineuse with breech birth was found. From theCambridge English Corpus However, no study of the effect ofcaffeineon the meiotic process of porcine oocytes has been performed. From theCambridge English Corpus The authors found that doses ofcaffeinehigher than 450 g/ml in the culture medium inhibited oocyte maturation. From theCambridge English Corpus The initial fertility consultation: recommendations concerning cigarette smoking, body mass index, and alcohol andcaffeineconsumption. From theCambridge English Corpus Participants were permitted to use their typical amounts of tobacco andcaffeinein order to avoid confounds associated with nicotine orcaffeinewithdrawal. From theCambridge English Corpus However, the effects ofcaffeineduring oocyte aging on embryonic development have not yet been studied. From theCambridge English Corpus Quantitative liver function in the elderly assessed by galactose elimination capacity, antipyrine demethylation andcaffeineclearance. From theCambridge English Corpus All participants were asked to abstain fromcaffeinefor the day and to ingest only fluids after 1500 hr on the day of the study. From theCambridge English Corpus Nor did the year 1800 bring with it any lessening of interest incaffeine. From theCambridge English Corpus They provided the institutional framework for a flourishing culture ofcaffeine. From theCambridge English Corpus Synergistic effect ofcaffeineand heparin on in vitro fertilization of cattle oocytes matured in culture. From theCambridge English Corpus However, slightly increased penetration activity was shown also in spermatozoa incubated with heparin andcaffeine(42.3% and 37.3%, respectively). From theCambridge English Corpus We confirmed that the rates of blastocyst formation from aged oocytes treated with or withoutcaffeinewere significantly lower than that of the control group. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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