References

Jinks SL, Carstens E, Antognini JF (2009) Nitrous oxide-induced analgesia does not influence nitrous oxide’s immobilizing requirements. Anesth Analg 109:1111-1116. doi: 10.1213/ANE.0b013e3181b5a2a7

Summary: Noradrenergic neurons in the locus coeruleus (LC) are involved with the analgesic action of nitrous oxide (N2O). In order to examine whether these neurons are also involved with the immobilizing effects of N2O, rats received 4 µg intracerebroventricular injections of anti-DBH-SAP (Cat. #IT-03). Mouse IgG-SAP (Cat. #IT-18) was used as a control. Lesioned animals did not experience the analgesic effects of N2O, but the immobilizing effects were still present. The data demonstrate that the immobilizing mechanism of N2O is independent from its analgesic effects.

Related Products: Anti-DBH-SAP (Cat. #IT-03), Mouse IgG-SAP (Cat. #IT-18)

Chen ZF, Sun YG, Zhao ZQ, Meng XL, Yin J, Liu XY (2009) Featured Article: Ablation of GRPR+ neurons in the spinal cord by bombesin-saporin knocks out itch sensation in mice without affecting pain circuit. Targeting Trends 10(4)

Related Products: Bombesin-SAP (Cat. #IT-40), Blank-SAP (Cat. #IT-21)

Read the featured article in Targeting Trends.

See Also:

• Sun YG et al. Cellular basis of itch sensation. Science 325:1531-1534, 2009.

Montero M, Gonzalez B, Zimmer J (2009) Immunotoxic depletion of microglia in mouse hippocampal slice cultures enhances ischemia-like neurodegeneration. Brain Res 1291:140-152. doi: 10.1016/j.brainres.2009.06.097

Summary: Data has shown microglia to be both neuroprotective and neurodegenerative in cerebral ischemia. This study presents a method for removing microglia from hippocampal slice cultures. Hippocampal slices from mouse were incubated with 13 nM Mac-1-SAP (Cat. #IT-06) for 3 to 7 days. The slices were then exposed to oxygen-glucose deprivation. Those cultures lacking microglia displayed significantly higher degeneration of CA1 pyramidal cells, indicating a neuroprotective role for microglia in this model.

Related Products: Mac-1-SAP mouse/human (Cat. #IT-06)

Read the featured article in Targeting Trends.

Lawhorn C, Smith DM, Brown LL (2009) Partial ablation of mu-opioid receptor rich striosomes produces deficits on a motor-skill learning task. Neuroscience 163(1):109-119. doi: 10.1016/j.neuroscience.2009.05.021

Summary: The functional role of basal ganglia striosomes is not well understood. In order to examine these cells in the context of motor behavior the authors injected 8.5 ng of dermorphin-SAP (Cat. #IT-12) into several areas of the striatum of mice (saporin, Cat. #PR-01, was used as a control). The animals were then evaluated in complex motor tasks involving the use of striatal circuitry. Animals receiving dermorphin-SAP showed deficits in specific motor tasks corresponding to the extent of the lesion.

Related Products: Dermorphin-SAP / MOR-SAP (Cat. #IT-12), Saporin (Cat. #PR-01)

Ingham ES, Gunhan E, Fuller PM, Fuller CA (2009) Immunotoxin-induced ablation of melanopsin retinal ganglion cells in a non-murine mammalian model. J Comp Neurol 516:125-140. doi: 10.1002/cne.22103

Related Products: Melanopsin-SAP (Cat. #IT-44)

Dashniani M, Burjanadze M, Beselia G, Maglakelidze G, Naneishvili T (2009) Spatial memory following selective cholinergic lesion of the nucleus basalis magnocellularis. Georgian Med News 174:77-81.

Summary: This study investigated the role of cholinergic nucleus basalis magnocellularis (NBM) cells in learning and memory. Rats received bilateral 200 ng injections of 192 IgG-SAP (Cat. IT-01) into the NBM. Mouse IgG-SAP (Cat. #IT-18) was used as a control. The results indicate that the NBM is important in accurate spatial learning and the processing of information about the spatial environment. Deficits in rats with the cholinergic lesion may be due to lowered attentional function.

Related Products: 192-IgG-SAP (Cat. #IT-01), Mouse IgG-SAP (Cat. #IT-18)

Penaloza-MacMaster P, Masopust D, Ahmed R (2009) T-cell reconstitution without T-cell immunopathology in two models of T-cell-mediated tissue destruction. Immunology 128:164-171. doi: 10.1111/j.1365-2567.2009.03080.x

Summary: Although antigen-specific T cells are vital to adaptive immune responses, they also contribute to a variety of diseases. In this work the authors examined the possibility of selectively removing epitope-specific T cells while preserving immune function. Biotinylated MHC class I tetramers were combined with streptavidin-ZAP (Cat. #IT-27) and used in a mouse transferable T-cell-dependent neurological disease model. This technique resulted in a dramatic reduction in targeted antigen specific T cells with no observable bystander toxicity.

Related Products: Streptavidin-ZAP (Cat. #IT-27)

Conner JM, Franks KM, Titterness AK, Russell K, Merrill DA, Christie BR, Sejnowski TJ, Tuszynski MH (2009) NGF is essential for hippocampal plasticity and learning. J Neurosci 29:10883-10889. doi: 10.1523/JNEUROSCI.2594-09.2009

Summary: This work aimed to define NGF modulation of plasticity and function in adults. Rats received 50 ng injections of 192-IgG-SAP (Cat. #IT-01) into the medial septum. Lesioned animals exhibited impaired retention of spatial memory and significantly reduced hippocampal long term potentiation. These results indicate that NGF modulates neuronal plasticity and behavior by exerting effects on cholinergic projections to hippocampal and cortical targets.

Related Products: 192-IgG-SAP (Cat. #IT-01)

Zhu J, Xu W, Wang J, Ali SF, Angulo JA (2009) The neurokinin-1 receptor modulates the methamphetamine-induced striatal apoptosis and nitric oxide formation in mice. J Neurochem 111(3):656-668. doi: 10.1111/j.1471-4159.2009.06330.x

Summary: This study examined the role of neurokinin-1 receptors (NK1R) on the methamphetamine-induced apoptosis of striatal neurons. 4 ng of SSP-SAP (Cat. #IT-11) or the control, saporin (Cat. #PR-01), was administered to the striatum of mice. Ablation of NK1R-expressing striatal neurons resulted in a significant reduction of methamphetamine-induced apoptosis. The data suggests that the NK1R circuitry in the striatum may be a target for treatment of methamphetamine abuse.

Related Products: SSP-SAP (Cat. #IT-11), Saporin (Cat. #PR-01)

Chen L, Brown RE, McKenna JT, McCarley RW (2009) Animal models of narcolepsy. CNS Neurol Disord Drug Targets 8(4):296-308. doi: 10.2174/187152709788921717 PMID: 19689311

Objective: To provide information to enable a consensus concerning the evaluation of narcoleptic behavioral and EEG phenomenology in these models.

Related Products: Orexin-B-SAP (Cat. #IT-20)

See Also:

• Gerashchenko K et al. Effects of lateral hypothalamic lesion with the neurotoxin hypocretin-2-saporin on sleep in Long-Evans rats. Neuroscience 116:223-235, 2003.