The effects of nicotine in the neonatal quinpirole rodent model of psychosis: Neural plasticity mechanisms and nicotinic receptor changes.
The effects of nicotine in the neonatal quinpirole rodent model of psychosis: Neural plasticity mechanisms and nicotinic receptor changes.
复制标题
尼古丁对新生儿喹吡罗啮齿动物精神病模型的影响:神经可塑性机制和烟碱受体变化。
DOI:
10.1016/j.bbr.2017.02.029
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发表时间:
2017
影响因子:
2.7
通讯作者:
Brown,RussellW
中科院分区:
文献类型:
--
作者:
Peterson,DanielJ;Gill,WDrew;Dose,JohnM;Hoover,DonaldB;Pauly,JamesR;Cummins,ElizabethD;Burgess,KatherineC;Brown,RussellW
Neonatal quinpirole (NQ) treatment to rats increases dopamine D2 receptor sensitivity persistent throughout the animal’s lifetime. In Experiment 1, we analyzed the role of α7 and α4β2 nicotinic receptors (nAChRs) in nicotine behavioral sensitization and on the brain-derived neurotrophic factor (BDNF) response to nicotine in NQ- and neonatally saline (NS)-treated rats. In Experiment 2, we analyzed changes in α7 and α4β2 nAChR density in the nucleus accumbens (NAcc) and dorsal striatum in NQ and NS animals sensitized to nicotine. Male and female Sprague-Dawley rats were neonatally treated with quinpirole (1 mg/kg) or saline from postnatal days (P)1-21. Animals were given ip injections of either saline or nicotine (0.5 mg/kg free base) every second day from P33 to P49 and tested on behavioral sensitization. Before each injection, animals were ip administered the α7 nAChR antagonist methyllycaconitine (MLA; 2 or 4 mg/kg) or the α4β2 nAChR antagonist dihydro beta erythroidine (DhβE; 1 or 3 mg/kg).Results revealed NQ enhanced nicotine sensitization that was blocked by DhβE. MLA blocked the enhanced nicotine sensitization in NQ animals, but did not block nicotine sensitization. NQ enhanced the NAcc BDNF response to nicotine which was blocked by both antagonists. In Experiment 2, NQ enhanced nicotine sensitization and enhanced α4β2, but not α7, nAChR upregulation in the NAcc. These results suggest a relationship between accumbal BDNF and α4β2 nAChRs and their role in the behavioral response to nicotine in the NQ model which has relevance to schizophrenia, a behavioral disorder with high rates of tobacco smoking.
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影响因子:
4.4
作者:
R. Geha
通讯作者:
R. Geha
影响因子:
4.4
作者:
A. Woods;G. E. Bushnell;Cabell Maddux
通讯作者:
Cabell Maddux
影响因子:
4.4
作者:
R. Stevens;F. D. Ziegler;J. H. Kelly
通讯作者:
J. H. Kelly
影响因子:
5.2
作者:
G. Siskind;B. Bhogal;J. Gibbons;M. Weksler;G. Thorbecke;E. Goidl
通讯作者:
E. Goidl
DOI:
--
发表时间:
1982
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Marasco,WA;Becker,EL
通讯作者:
Becker,EL