alexa Effect of zinc deficiency on appetite and free amino acid concentrations in rat brain.


Journal of Membrane Science & Technology

Author(s): Wallwork JC, Sandstead HH

Abstract Share this page

Abstract Brain amino acids were measured in 30-day-old male Long-Evans rats subsequent to feeding a 20\% egg white biotin-enriched zinc-deficient diet for 9 days. The zinc-deficient (ZD) group was given distilled deionized water. Zinc-supplemented control groups included pair-fed (PF), ad libitum-fed (AL) and ad libitum-fed, overnight fasted (OF) animals. Brain tyrosine concentrations and related amino acid ratios tended to be higher when food was consumed in all groups. Brain tryptophan concentrations and a brain amino acid ratio (glycine + serine + glutamine + taurine:leucine + isoleucine + valine + methionine) were not related to food intake in ZD rats in contrast to zinc-adequate controls. Also the brain ratio of tryptophan to the sum of large neutral amino acids minus tryptophan was not related to food intake in the ZD and AL-OF groups in contrast to the PF group. There were some differences in brain amino acid concentrations between ZD rats and the control groups; however, the pattern of the brain amino acids in ZD rats did not suggest that food intake was directly influenced by them.
This article was published in J Nutr and referenced in Journal of Membrane Science & Technology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 2nd International Conference and Expo on Water Microbiology & Novel Technologies
    (10 Plenary Forums 3 days 1 Event)
    August 28-30, 2017, Philadelphia, USA

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version