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Bilateral fetal striatal grafts in the 3-nitropropionic acid-induced hypoactive model of Huntington's disease.

Abstract
We investigated the 3-nitropropionic acid (3-NP)-induced hypoactive model of Huntington's disease (HD) to demonstrate whether fetal tissue transplantation can ameliorate behavioral deficits associated with a more advanced stage of HD. Twelve-week-old Sprague-Dawley rats were introduced to the 3-NP dosing regimen (10 mg/kg, i.p., once every 4 days for 28 consecutive days), and were then tested for general spontaneous locomotor activity in the Digiscan locomotor apparatus. All rats displayed significant hypoactivity compared to their pre-3-NP injection locomotor activity. Randomly selected rats then received bilateral intrastriatal solid grafts of fetal striatal (lateral ganglionic eminence, LGE) tissues from embryonic day 14 rat fetuses. Approximately 1/3 of each LGE in hibernation medium was infused into each lesioned host striatum. In control rats, medium alone was infused intrastriatally. A 3-mo posttransplant maturation period was allowed prior to locomotor activity testing. Animals receiving fetal LGE grafts exhibited a significant increase in locomotor activity compared to their post-3-NP injection activity or to the controls' posttransplant activity. Surviving striatal grafts were noted in functionally recovered animals. This observation supports the use of fetal striatal transplants to correct the akinetic stage of HD. To the best of our knowledge, this is the first study that has investigated the effects of fetal striatal transplantation in a hypoactive model of HD.
AuthorsC V Borlongan, T K Koutouzis, S G Poulos, S Saporta, P R Sanberg
JournalCell transplantation (Cell Transplant) 1998 Mar-Apr Vol. 7 Issue 2 Pg. 131-5 ISSN: 0963-6897 [Print] UNITED STATES
PMID9588595 (Publication Type: Journal Article)
Chemical References
  • Neurotoxins
  • Nitro Compounds
  • Propionates
  • 3-nitropropionic acid
Topics
  • Animals
  • Brain Tissue Transplantation (pathology)
  • Corpus Striatum (pathology, transplantation)
  • Fetal Tissue Transplantation (pathology)
  • Humans
  • Huntington Disease (chemically induced, physiopathology, surgery)
  • Male
  • Motor Activity
  • Neurotoxins (toxicity)
  • Nitro Compounds
  • Propionates (toxicity)
  • Rats
  • Rats, Sprague-Dawley

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