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Effect of tyrosine on cognitive function and blood pressure under stress | Semantic Scholar

@article{Deijen1994EffectOT,
  title={Effect of tyrosine on cognitive function and blood pressure under stress},
  author={Jan Berend Deijen and Jacob F. Orlebeke},
  journal={Brain Research Bulletin},
  year={1994},
  volume={33},
  pages={319-323},
  url={https://api.semanticscholar.org/CorpusID:33823121}
}

110 Citations

Tyrosine Supplementation A Nutraceutical Approach to Counter Heat Stress Induced Cognitive Decline

It may be concluded that tyrosine supplementation improves heat stress-induced decrement in attention by maintaining the synthesis and turnover of norepinephrine.

A Combination of Nootropic Ingredients (CAF+) Is Not Better than Caffeine in Improving Cognitive Functions

It is concluded that in healthy young students, caffeine improves memory performance and sensorimotor speed, whereas CAF+ does not affect the cognitive performance at the dose tested.

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28 References

Tyrosine administration reduces blood pressure and enhances brain norepinephrine release in spontaneously hypertensive rats.

Tyrosine injection appears to reduce blood pressure via an action within the central nervous system, since the effect can be blocked by co-administering other large neutral amino acids that reduce tyrosine's uptake into the brain.

Effect of noise on blood pressure and 'stress' hormones.

Noise stimulation for 20 min caused a significant increase in diastolic blood pressure and mean arterial pressure and Adrenaline, noradrenaline, prolactin, cortisol and growth hormone concentration in venous plasma were not affected during noise stimulation.

Plasma norepinephrine pharmacokinetics during mental challenge.

The results indicate that mental challenge is associated with generally increased sympathetically‐mediated NE release that determines the hemodynamic responses, and measurement of total body and regional NE pharmacokinetics avoids these difficulties.

Hemodynamic and hormonal changes induced by noise.

There were no changes in adrenaline and noradrenaline in plasma during maximal noise exposure and the noise induced hemodynamic changes remained 5 minutes after the noise stimulation was stopped but had disappeared after 10 minutes of rest.

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