These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Acute and chronic effects of the trichothecene mycotoxin T-2 on rat brain regional concentrations of serotonin, tryptophan, and tyrosine.
    Author: Weekley LB, O'Rear CE, Kimbrough TD, Llewellyn GC.
    Journal: Vet Hum Toxicol; 1989 Jun; 31(3):221-4. PubMed ID: 2741308.
    Abstract:
    Female rats were given 1 acute dose or chronic doses (once every 48 hr for 28 days) of T-2 toxin (10 micrograms/kg ip) or vehicle. At necropsy, each brain was subdivided into cerebellum, cerebral cortex (including telencephalon and diencephalon), and brainstem (including mesencephalon, metencephalon, and myelencephalon). Acute systemic T-2 toxin administration increased cerebellar and brainstem tryptophan while serotonin, a tryptophan metabolite, was decreased correspondingly in these same brain regions. Chronic T-2 administration increased cerebellar tyrosine and serotonin concentrations, while cortical tryptophan concentrations were also increased. These results indicate that both acute and chronic administration of T-2 toxin cause differential changes in regional distribution levels of tyrosine, tryptophan, and serotonin.
    [Abstract] [Full Text] [Related] [New Search]