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The number of antigen-stimulated NK CD69<jats:sup>+<\/jats:sup> cells increased in 6CAF at 1 h compared with PLA (P = 0.021). Caffeine did not influence the number of antigen-stimulated CD69<jats:sup>+<\/jats:sup> T cells or the geometric mean fluorescence intensity expression of CD69 on antigen-stimulated lymphocytes, suggesting caffeine has little effect on antigen-stimulated lymphocyte activation. <\/jats:p>","DOI":"10.1139\/apnm-2015-0456","type":"journal-article","created":{"date-parts":[[2015,10,29]],"date-time":"2015-10-29T21:37:07Z","timestamp":1446154627000},"page":"224-227","update-policy":"https:\/\/doi.org\/10.1139\/csp-crossmark-policy","source":"Crossref","is-referenced-by-count":10,"title":["Effect of a high and low dose of caffeine on human lymphocyte activation in response to antigen stimulation"],"prefix":"10.1139","volume":"41","author":[{"given":"Deborah K.","family":"Dulson","sequence":"first","affiliation":[{"name":"AUT University, Sports Performance Research Institute New Zealand, Private Bag 92006, Auckland 1020, New Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicolette C.","family":"Bishop","sequence":"additional","affiliation":[{"name":"School of Sport, Exercise, and Health Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"155","reference":[{"key":"refg1\/ref1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.me.41.020190.001425"},{"key":"refg2\/ref2","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-004-1271-6"},{"key":"refg3\/ref3","doi-asserted-by":"crossref","unstructured":"Blay, J., and Hoskin, D.W. 2007. 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