tt2003

Zeitschel U, Schliebs R, Rossner S, Bigl V, Eschrich K, Bigl M (2002) Changes in activity and expression of phosphofructokinase in different rat brain regions after basal forebrain cholinergic lesion. J Neurochem 83(2):371-380. doi: 10.1046/j.1471-4159.2002.01127.x

Summary: The authors used intraventricular injections of 4 µg of 192-Saporin (Cat. #IT-01) in rats to investigate whether impaired cholinergic transmission may cause metabolic changes. Although the results demonstrate an initial increase in a cortical glucose metabolic marker, this increase was transient. The authors conclude that cholinergic systems do not control cortical glucose metabolic mechanisms affected by Alzheimer’s disease.

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

Ballmaier M, Casamenti F, Scali C, Mazzoncini R, Zoli M, Pepeu G, Spano PF (2002) Rivastigmine antagonizes deficits in prepulse inhibition induced by selective immunolesioning of cholinergic neurons in nucleus basalis magnocellularis. Neuroscience 114(1):91-98. doi: 10.1016/s0306-4522(02)00234-8

Summary: The authors injected 300 nl of 400 ng/ml 192-Saporin (Cat. #IT-01) bilaterally into the nucleus basalis magnocellularis of rats, then treated the lesioned animals with rivastigmine, a cholinesterase inhibitor. Animals treated with rivistagmine exhibited raised levels of cortical acetylcholine, in contrast to undetectable acetylcholine levels in lesioned animals not treated with rivastigmine.

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

Pizzo DP, Thal LJ, Winkler J (2002) Mnemonic deficits in animals depend upon the degree of cholinergic deficit and task complexity. Exp Neurol 177:292-305. doi: 10.1006/exnr.2002.7993

Summary: In this study, the authors compared icv and intraparenchymal injections of 192-Saporin (Cat. #IT-01, 3.3 µg and 450 ng, respectively). While a similar reduction in choline acetyltransferase activity was observed with each strategy, and performance in certain allocentric tasks was similar, an egocentric task showed a marked difference between the two groups.

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

Vale-Martinez A, Baxter MG, Eichenbaum H (2002) Selective lesions of basal forebrain cholinergic neurons produce anterograde and retrograde deficits in a social transmission of food preference task in rats. Eur J Neurosci 16(6):983-998. doi: 10.1046/j.1460-9568.2002.02153.x

Summary: Injections of 0.2 µg 192-Saporin (Cat. #IT-01) were made into either the medial septum/vertical limb of the diagonal band (MS/VDB), or the nucleus basalis magnocellularis/substantia innominata (NBM/SI) of rats. MS/VDB lesions had no effect on anterograde memory, while NBM/SI lesions strongly impaired immediate and 24-hour retention. In contrast, MS/DVB lesions produced significant memory deficits in a long-delay retrograde memory test.

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

Nattie EE, Li A (2002) Substance P-saporin lesion of neurons with NK1 receptors in one chemoreceptor site in rats decreases ventilation and chemosensitivity. J Physiol 544(Pt 2):603-616. doi: 10.1113/jphysiol.2002.020032

Summary: The authors injected 0.1 pmol SP-SAP (Cat. #IT-07) into the retrotrapezoid nucleus/parapyramidal region of rats. The lesioned animals demonstrated hypoventilation while at rest, decreased response to high CO2 levels, and a tendency to sleep less.

Related Products: SP-SAP (Cat. #IT-07)

Hartig W, Varga C, Kacza J, Grosche J, Seeger J, Luiten PG, Brauer K, Harkany T (2002) In vivo labeling of rabbit cholinergic basal forebrain neurons with fluorochromated antibodies. NeuroReport 13(11):1395-1398. doi: 10.1097/00001756-200208070-00009 PMID: 12167760

Summary: To investigate in vivo labeling of p75 low-affinity neurotrophin receptor the authors conjugated Cy3 to ME20.4 (Cat. #AB-N07) and performed either unilateral or bilateral icv injections in rabbits. The antibody labeled only cholinergic neurons demonstrating its potential as a p75 marker.

Related Products: NGFr (ME20.4, p75) Mouse Monoclonal (Cat. #AB-N07)

Beaule C, Amir S (2002) Effect of 192 IgG-saporin on circadian activity rhythms, expression of P75 neurotrophin receptors, calbindin-D28K, and light-induced Fos in the suprachiasmatic nucleus in rats. Exp Neurol 176(2):377-389. doi: 10.1006/exnr.2002.7969

Summary: The authors used bilateral icv injections of 200 ng of 192-Saporin (Cat. #IT-01) to investigate the contribution of p75NTR-expressing neurons to the determination of a circadian rhythm. The data show that p75NTR-expressing neurons are not essential for this process.

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

Hyde LA, Crnic LS (2002) Reactivity to object and spatial novelty is normal in older Ts65Dn mice that model Down syndrome and Alzheimer’s disease. Brain Res 945:26-30. doi: 10.1016/s0006-8993(02)02500-3 PMID: 12113948

Summary: The authors hypothesized that a mouse model for Down syndrome may show some of the same cognitive deficits exhibited by rats lesioned with 192-Saporin (Cat. #IT-01), which eliminates cholinergic cells in the basal forebrain. The results suggest that in this Down syndrome model, cell loss has a much greater cognitive effect if it happens early in development as opposed to in adulthood.

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

Risbrough V, Bontempi B, Menzaghi F (2002) Selective immunolesioning of the basal forebrain cholinergic neurons in rats: effect on attention using the 5-choice serial reaction time task. Psychopharmacology 164:71-81. doi: 10.1007/s00213-002-1170-7

Summary: The authors used 0.067 µg injections of 192-Saporin (Cat. #IT-01) into the nucleus basalis magnocellularis to investigate attentional performance in rats. The treated animals exhibited a very specific subset of attentional deficits, many centered around increased difficulty completing tasks in the presence of distractions.

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