Chronic Low Dose Neutron Exposure Results in Altered Neurotransmission Properties of the Hippocampus-Prefrontal Cortex Axis in Both Mice and Rats.
Chronic Low Dose Neutron Exposure Results in Altered Neurotransmission Properties of the Hippocampus-Prefrontal Cortex Axis in Both Mice and Rats.
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DOI:
10.3390/ijms22073668
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发表时间:
2021-04-01
影响因子:
5.6
通讯作者:
Britten RA
中科院分区:
文献类型:
--
作者:
Krishnan B;Natarajan C;Bourne KZ;Alikhani L;Wang J;Sowa A;Groen K;Perry B;Dickstein DL;Baulch JE;Limoli CL;Britten RA
The proposed deep space exploration to the moon and later to Mars will result in astronauts receiving significant chronic exposures to space radiation (SR). SR exposure results in multiple neurocognitive impairments. Recently, our cross-species (mouse/rat) studies reported impaired associative memory formation in both species following a chronic 6-month low dose exposure to a mixed field of neutrons (1 mGy/day for a total dose pf 18 cGy). In the present study, we report neutron exposure induced synaptic plasticity in the medial prefrontal cortex, accompanied by microglial activation and significant synaptic loss in the hippocampus. In a parallel study, neutron exposure was also found to alter fluorescence assisted single synaptosome LTP (FASS-LTP) in the hippocampus of rats, that may be related to a reduced ability to insert AMPAR into the post-synaptic membrane, which may arise from increased phosphorylation of the serine 845 residue of the GluA1 subunit. Thus, we demonstrate for the first time, that low dose chronic neutron irradiation impacts homeostatic synaptic plasticity in the hippocampal-cortical circuit in two rodent species, and that the ability to successfully encode associative recognition memory is a dynamic, multicircuit process, possibly involving compensatory changes in AMPAR density on the synaptic surface.
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影响因子:
3.1
作者:
Dickstein, Dara L.;Brautigam, Hannah;Stockton, Steven D., Jr.;Schmeidler, James;Hof, Patrick R.
通讯作者:
Hof, Patrick R.
影响因子:
3.4
作者:
Britten RA;Davis LK;Jewell JS;Miller VD;Hadley MM;Sanford LD;Machida M;Lonart G
通讯作者:
Lonart G
DOI:
10.1002/cne.24530
发表时间:
2018-12-01
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
Dickstein DL;Talty R;Bresnahan E;Varghese M;Perry B;Janssen WGM;Sowa A;Giedzinski E;Apodaca L;Baulch J;Acharya M;Parihar V;Limoli CL
通讯作者:
Limoli CL
影响因子:
5.1
作者:
Comerota MM;Tumurbaatar B;Krishnan B;Kayed R;Taglialatela G
通讯作者:
Taglialatela G
影响因子:
56.9
作者:
Beattie, EC;Stellwagen, D;Malenka, RC
通讯作者:
Malenka, RC