Abstract:
:We have studied nicotinic acetylcholine receptors in spontaneously hypertensive 'stroke prone' (SHsp) rats. We found a significant decrease in 125I-alpha-bungarotoxin binding and alpha7 subunit mRNA levels in cortical areas of the SHsp rats with respect to Wistar Kyoto (WKy) normotensive rats. Antihypertensive drug treatment counteracted these changes in cerebral cortex but not in hippocampus. No significant change was instead found in [3H]-epibatidine binding and alpha4 and beta2 subunit mRNA levels. SHsp rats showed decreased latency at the active avoidance test and transiently increased threshold at both hot-plate and tail-flick tests in comparison with WKy rats. None of these behavioral parameters was correlated with 125I-alpha-bungarotoxin binding in cortical areas. In conclusion, present data show a preferential impairment of alpha-bungarotoxin sensitive nAChRs in SHsp rats.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Ferrari R,Frasoldati A,Leo G,Torri C,Zini I,Agnati LF,Zoli Mdoi
10.1016/s0304-3940(99)00879-4keywords:
subject
Has Abstractpub_date
1999-12-31 00:00:00pages
169-72issue
3eissn
0304-3940issn
1872-7972pii
S0304394099008794journal_volume
277pub_type
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