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AMPA-Kainate Receptor Inhibition Promotes Neurologic Recovery in Premature Rabbits with Intraventricular Hemorrhage.
Dohare P, Zia MT, Ahmed E, Ahmed A, Yadala V, Schober AL, Ortega JA, Kayton R, Ungvari Z, Mongin AA, Ballabh P. Dohare P, et al. J Neurosci. 2016 Mar 16;36(11):3363-77. doi: 10.1523/JNEUROSCI.4329-15.2016. J Neurosci. 2016. PMID: 26985043 Free PMC article.
No therapeutic strategy exists against the IVH-induced white matter injury. AMPA-kainate receptor induced excitotoxicity contributes to oligodendrocyte precursor cell (OPC) damage and hypomyelination in both neonatal and adult models of brain injury. Here, we hypothesized …
No therapeutic strategy exists against the IVH-induced white matter injury. AMPA-kainate receptor induced excitotoxicity contributes …
Developmental adaptation of rod photoreceptor number via photoreception in melanopsin (OPN4) retinal ganglion cells.
D'Souza SP, Upton BA, Eldred KC, Glass I, Grover K, Ahmed A, Ngyuen MT, Gamlin P, Lang RA. D'Souza SP, et al. bioRxiv [Preprint]. 2023 Aug 26:2023.08.24.554675. doi: 10.1101/2023.08.24.554675. bioRxiv. 2023. PMID: 37662196 Free PMC article. Preprint.
Using a combination of genetics, sensory environment manipulations, and computational approaches, we establish a molecular pathway in which light-dependent glutamate release from ipRGCs is detected via a transiently expressed kainate receptor (GRIK3) in immature rods local …
Using a combination of genetics, sensory environment manipulations, and computational approaches, we establish a molecular pathway in which …
Early-life status epilepticus induces long-term deficits in anxiety and spatial learning in mice.
Smith G, Ahmed N, Arbuckle E, Lugo JN. Smith G, et al. Int J Epilepsy. 2017 Jan-Jun;4(1):36-45. doi: 10.1016/j.ijep.2016.12.005. Epub 2017 Jan 9. Int J Epilepsy. 2017. PMID: 31890565 Free PMC article.
METHODS: To examine whether early-life status epilepticus results in altered anxiety, repetitive behavior, social behavior, and learning and memory, we induced status epilepticus in male C57BL/6 mice on postnatal day (PD) 10. The mice received intraperitoneal injections of either …
METHODS: To examine whether early-life status epilepticus results in altered anxiety, repetitive behavior, social behavior, and learning and …
Design and development of letrozole nanoemulsion: A comparative evaluation of brain targeted nanoemulsion with free letrozole against status epilepticus and neurodegeneration in mice.
Iqbal R, Ahmed S, Jain GK, Vohora D. Iqbal R, et al. Int J Pharm. 2019 Jun 30;565:20-32. doi: 10.1016/j.ijpharm.2019.04.076. Epub 2019 Apr 30. Int J Pharm. 2019. PMID: 31051232
LET-NE is compared against intraperitoneally administered free LET in kainic acid (KA) induced status epilepticus (SE) in mice. LET loaded nanoemulsion (LET-NE) was prepared by aqueous microtitration method using Triacetin, Tween 80 and PEG-400 as the oil phase, sur …
LET-NE is compared against intraperitoneally administered free LET in kainic acid (KA) induced status epilepticus (SE) in mice …
The loss of an electrostatic contact unique to AMPA receptor ligand binding domain 2 slows channel activation.
Holley SM, Ahmed AH, Srinivasan J, Murthy SE, Weiland GA, Oswald RE, Nowak LM. Holley SM, et al. Biochemistry. 2012 May 15;51(19):4015-27. doi: 10.1021/bi3001837. Epub 2012 May 2. Biochemistry. 2012. PMID: 22512472 Free PMC article.
We investigated how the peptide flip and electrostatic contact (D655-K660) in GluA3 contribute to receptor function by examining pharmacological and structural properties with an antagonist (CNQX), a partial agonist (kainate), and two full agonists (glutamate and quisquala …
We investigated how the peptide flip and electrostatic contact (D655-K660) in GluA3 contribute to receptor function by examining pharmacolog …
The structure of (-)-kaitocephalin bound to the ligand binding domain of the (S)-alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)/glutamate receptor, GluA2.
Ahmed AH, Hamada M, Shinada T, Ohfune Y, Weerasinghe L, Garner PP, Oswald RE. Ahmed AH, et al. J Biol Chem. 2012 Nov 30;287(49):41007-13. doi: 10.1074/jbc.M112.416362. Epub 2012 Oct 17. J Biol Chem. 2012. PMID: 23076153 Free PMC article.
Previous work has shown that it is a potent antagonist of some subtypes of glutamate receptors (AMPA and NMDA, but not kainate). The structure of kaitocephalin bound to the ligand binding domain of the AMPA receptor subtype, GluA2, is reported here. ...
Previous work has shown that it is a potent antagonist of some subtypes of glutamate receptors (AMPA and NMDA, but not kainate). The …
Glutamate stimulates release of Ca2+ from internal stores in astroglia.
Ahmed Z, Lewis CA, Faber DS. Ahmed Z, et al. Brain Res. 1990 May 14;516(1):165-9. doi: 10.1016/0006-8993(90)90914-w. Brain Res. 1990. PMID: 1973064
Some cells produced multiple transients. N-Methyl-D-aspartate, kainate and aspartate were ineffective. We conclude that the quisqualate subtype of glutamate receptors mediates release of Ca2+ from internal stores in mammalian astrocytes....
Some cells produced multiple transients. N-Methyl-D-aspartate, kainate and aspartate were ineffective. We conclude that the quisquala …