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A combination of caffeine and taurine has no effect on short term memory but induces changes in heart rate and mean arterial blood pressure

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Summary.

Red Bull energy drink has become extraordinarily popular amongst college students for use as a study aid. We investigated the combined effects of Red Bull’s two active ingredients, caffeine and taurine, on short term memory. Studies on the effects of these two neuromodulators on memory have yielded mixed results, and their combined actions have not yet been investigated. In this double-blind study, college student subjects consumed either caffeine and taurine pills or a placebo and then completed a memory assessment. Heart rate and blood pressure were monitored throughout the testing period. The combination of caffeine and taurine had no effect on short term memory, but did cause a significant decline in heart rate and an increase in mean arterial blood pressure. The heart rate decline may have been caused by pressure-induced bradycardia that was triggered by caffeine ingestion and perhaps enhanced by the actions of taurine.

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References

  • C Alford H Cox R Wescott (2001) ArticleTitleThe effects of Red Bull Energy Drink on human performance and mood Amino Acids 21 139–150 Occurrence Handle11665810 Occurrence Handle1:CAS:528:DC%2BD3MXotFKjs7c%3D Occurrence Handle10.1007/s007260170021

    Article  PubMed  CAS  Google Scholar 

  • K Battig R Buzzi JR Martin JM Feierabend (1984) ArticleTitleThe effects of caffeine on physiological functions and mental performance Experientia 40 1218–1223 Occurrence Handle6500006 Occurrence Handle1:STN:280:DyaL2M%2FltFOntA%3D%3D Occurrence Handle10.1007/BF01946650

    Article  PubMed  CAS  Google Scholar 

  • M Baum M Weis (2001) ArticleTitleThe influence of a taurine containing drink on cardiac parameters before and after exercise measured by echocardiography Amino Acids 20 75–82 Occurrence Handle11310932 Occurrence Handle1:CAS:528:DC%2BD3MXktlOksbY%3D Occurrence Handle10.1007/s007260170067

    Article  PubMed  CAS  Google Scholar 

  • E Charmandari C Tsigos G Chrousos (2005) ArticleTitleEndocrinology of the stress response Annu Rev Physiol 67 259–284 Occurrence Handle15709959 Occurrence Handle1:CAS:528:DC%2BD2MXjsFelu7c%3D Occurrence Handle10.1146/annurev.physiol.67.040403.120816

    Article  PubMed  CAS  Google Scholar 

  • RJ Huxtable (1992) ArticleTitlePhysiological actions of taurine Physiol Rev 72 101–163 Occurrence Handle1731369 Occurrence Handle1:CAS:528:DyaK38XhsVKhsLw%3D

    PubMed  CAS  Google Scholar 

  • HR Lieberman (2001) ArticleTitleThe effects of ginseng, ephedrine, and caffeine on cognitive performance, mood and energy Nutrition Rev 59 91–102 Occurrence Handle1:STN:280:DC%2BD3M3nsFGnuw%3D%3D Occurrence Handle10.1111/j.1753-4887.2001.tb06995.x

    Article  CAS  Google Scholar 

  • WH Loke (1988) ArticleTitleEffects of caffeine on mood and memory Physiol Behav 44 367–372 Occurrence Handle3222359 Occurrence Handle1:CAS:528:DyaL1MXhvVCgtA%3D%3D Occurrence Handle10.1016/0031-9384(88)90039-X

    Article  PubMed  CAS  Google Scholar 

  • PJ Mitchell JR Redman (1992) ArticleTitleEffects of caffeine, time of day and user history on study-related performance Psychopharmacology 109 121–126 Occurrence Handle1365645 Occurrence Handle1:CAS:528:DyaK3sXitVGitL4%3D Occurrence Handle10.1007/BF02245489

    Article  PubMed  CAS  Google Scholar 

  • GA Pincomb WR Lovallo RB Passey DJ Brackett MF Wilson (1987) ArticleTitleCaffeine enhances physiological response to occupational stress in medical students Health Psychol 6 101–112 Occurrence Handle3830118 Occurrence Handle1:STN:280:DyaL2s7mtFOgtg%3D%3D Occurrence Handle10.1037/0278-6133.6.2.101

    Article  PubMed  CAS  Google Scholar 

  • GA Pincomb MF Wilson BH Sung RB Passey WR Lovallo (1991) ArticleTitleEffects of caffeine on pressor regulation during rest and exercise in men at risk for hypertension Am Heart J 122 1107–1115 Occurrence Handle1927862 Occurrence Handle1:STN:280:DyaK38%2FisFyhsA%3D%3D Occurrence Handle10.1016/0002-8703(91)90479-2

    Article  PubMed  CAS  Google Scholar 

  • Red Bull North America (2005) http://www.redbull.com. The official website of Red Bull energy drink

  • W Riedel E Hogervorst R Leboux F Verhey H van Praag J Jolles (1995) ArticleTitleCaffeine attenuates scopolamine-induced memory impairment in humans Psychopharmacology 122 158–168 Occurrence Handle8848531 Occurrence Handle1:STN:280:DyaK283nsVentg%3D%3D Occurrence Handle10.1007/BF02246090

    Article  PubMed  CAS  Google Scholar 

  • S Rivas-Aranciba C Dorado-Martinez G Borgonio-Perez M Hiriart-Urdanivia L Verdugo-Diaz A Duran-Vazques L Colin-Baranque MR Avila-Costa (2000) ArticleTitleEffects of taurine on ozone-induced memory deficits and lipid peroxidation levels in brains of young, mature, and old rats Environ Res 82 7–17 Occurrence Handle10.1006/enrs.1999.3996

    Article  Google Scholar 

  • D Robertson JC Frolich RK Carr T Watson JW Hollifield DG Shand JA Oates (1978) ArticleTitleEffects of caffeine on plasma renin activity, catecholamines and blood pressure N Engl J Med 298 181–186 Occurrence Handle339084 Occurrence Handle1:CAS:528:DyaE1cXhsVKgsbg%3D Occurrence Handle10.1056/NEJM197801262980403

    Article  PubMed  CAS  Google Scholar 

  • PJ Rogers J Martin C Smith S Heatherley H Smit (2003) ArticleTitleAbsence of reinforcing, mood and psychomotor performance effects of caffeine in habitual non-consumers of caffeine Psychopharmacology 167 54–62 Occurrence Handle12601503 Occurrence Handle1:CAS:528:DC%2BD3sXislyqsb8%3D

    PubMed  CAS  Google Scholar 

  • L Ryan C Hatfield M Hofstetter (2002) ArticleTitleCaffeine reduces time-of-day effects on memory performance in older adults Physiol Sci 13 68–71

    Google Scholar 

  • P Saransaari SS Oja (1993) ArticleTitlePhencyclidine-binding sites in mouse cerebral cortex during development and ageing: effects of inhibitory amino acids Mech Ageing Dev 68 125–136 Occurrence Handle8350653 Occurrence Handle1:CAS:528:DyaK3sXltVyrt70%3D Occurrence Handle10.1016/0047-6374(93)90145-H

    Article  PubMed  CAS  Google Scholar 

  • A Scholey D Kennedy (2004) ArticleTitleCognitive and physiological effects of an “energy drink”: an evaluation of the whole drink and of glucose, caffeine and herbal flavoring fractions Psychopharmacology 176 320–330 Occurrence Handle15549275 Occurrence Handle1:CAS:528:DC%2BD2cXps1Wqur8%3D Occurrence Handle10.1007/s00213-004-1935-2

    Article  PubMed  CAS  Google Scholar 

  • HJ Smit PJ Rogers (2000) ArticleTitleEffects of low doses of caffeine on cognitive performance, mood and thirst in low and higher caffeine consumers Psychopharmacology 152 167–173 Occurrence Handle11057520 Occurrence Handle1:CAS:528:DC%2BD3cXnvF2iu74%3D Occurrence Handle10.1007/s002130000506

    Article  PubMed  CAS  Google Scholar 

  • Suleman A, Siddiqui NH (1997–2004) Haemodynamic and cardiovascular effects of caffeine. Pharmacy On-Line: The International Journal of Pharmacy http://www.priory.com/pharmol/caffeine.htm. Accessed 2005 May 1

  • BH Sung WR Lovallo GA Pincomb MF Wilson (1990) ArticleTitleEffects of caffeine on blood pressure response during exercise in normotensive healthy young men Am J Cardiol 65 909–913 Occurrence Handle2321541 Occurrence Handle1:CAS:528:DyaK3cXitFSqs7g%3D Occurrence Handle10.1016/0002-9149(90)91435-9

    Article  PubMed  CAS  Google Scholar 

  • BPS Vohra X Hui (2000) ArticleTitleImprovement of impaired memory in mice by taurine Neural Plast 7 245–259 Occurrence Handle11486485 Occurrence Handle1:STN:280:DC%2BD3MvktFSltQ%3D%3D

    PubMed  CAS  Google Scholar 

  • M Vojtechovsky V Safratova (1972) ArticleTitleComparative study of caffeine with other stimulants in university students Acta Nervosa Superior 14 138–139 Occurrence Handle1:STN:280:DyaE383isFOqug%3D%3D

    CAS  Google Scholar 

  • D Warburton E Bersellini E Sweeney (2001) ArticleTitleAn evaluation of a caffeinated taurine drink on mood, memory and information processing in healthy volunteers without caffeine abstinence Psychopharmacology 158 322–328 Occurrence Handle11713623 Occurrence Handle1:CAS:528:DC%2BD3MXpt1Cls7s%3D Occurrence Handle10.1007/s002130100884

    Article  PubMed  CAS  Google Scholar 

  • TL Whitsett CV Manion HD Christensen (1984) ArticleTitleCardiovascular effects of coffee and caffeine Am J Cardiol 53 918–922 Occurrence Handle6702647 Occurrence Handle1:STN:280:DyaL2c7ltVGltg%3D%3D Occurrence Handle10.1016/0002-9149(84)90525-3

    Article  PubMed  CAS  Google Scholar 

  • CP Yang MT Lin (1983) ArticleTitleAmino acids injected into the cerebroventricular system induce an enhancement of reflex bradycardia in the rat Neuropharmacol 22 919–922 Occurrence Handle1:CAS:528:DyaL3sXkvF2qtrs%3D Occurrence Handle10.1016/0028-3908(83)90141-7

    Article  CAS  Google Scholar 

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Bichler, A., Swenson, A. & Harris, M. A combination of caffeine and taurine has no effect on short term memory but induces changes in heart rate and mean arterial blood pressure. Amino Acids 31, 471–476 (2006). https://doi.org/10.1007/s00726-005-0302-x

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  • DOI: https://doi.org/10.1007/s00726-005-0302-x

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