Author name: Kristen Hartman

Cover Article: Cholinergic Deafferentation of the Entorhinal Cortex Impairs Working Memory for Novel, but not Familiar Stimuli in a Delayed Non-Match to Sample (DNMS) Task.

Contributed by ATS’s 2003 Society for Neuroscience Poster of the Year Award Winner:Dr. Jill McGaughy, Boston University, 64 Cummington St., Boston, MA 02215 Muscarinic cholinergic receptor activation in entorhinal cortex (EC) activates intrinsic depolarizing membrane currents, which cause self-sustained spiking activity in single neurons.[1] This effect may underlie delay activity and match-dependent activity changes in […]

Cover Article: Cholinergic Deafferentation of the Entorhinal Cortex Impairs Working Memory for Novel, but not Familiar Stimuli in a Delayed Non-Match to Sample (DNMS) Task. Read More »

Cytochrome oxidase activity in the monkey globus pallidus and subthalamic nucleus after ablation of striatal interneurons expressing substance P receptors.

Chiken S, Hatanaka N, Tokuno H (2003) Cytochrome oxidase activity in the monkey globus pallidus and subthalamic nucleus after ablation of striatal interneurons expressing substance P receptors. Neurosci Lett 353(2):103-106. doi: 10.1016/j.neulet.2003.09.026 Summary: 1-6 µl of 15-20 ng/µl SP-SAP (Cat. #IT-07) was injected into the forelimb representation of the putamen. Animals were examined for the

Cytochrome oxidase activity in the monkey globus pallidus and subthalamic nucleus after ablation of striatal interneurons expressing substance P receptors. Read More »

Testosterone manipulation protects motoneurons from dendritic atrophy after contralateral motoneuron depletion.

Fargo KN, Sengelaub DR (2004) Testosterone manipulation protects motoneurons from dendritic atrophy after contralateral motoneuron depletion. J Comp Neurol 469(1):96-106. doi: 10.1002/cne.10991 Summary: The authors wished to investigate the therapeutic effects of testosterone on motoneuron dendrites in nerve injury models. 1 µl of a 0.1% solution of CTB-SAP (Cat. #IT-14) solution was unilaterally injected into

Testosterone manipulation protects motoneurons from dendritic atrophy after contralateral motoneuron depletion. Read More »

Cholinergic modulation of visual attention and working memory: Dissociable effects of basal forebrain 192-IgG-saporin lesions and intraprefrontal infusions of scopolamine.

Chudasama Y, Dalley JW, Nathwani F, Bouger P, Robbins TW (2004) Cholinergic modulation of visual attention and working memory: Dissociable effects of basal forebrain 192-IgG-saporin lesions and intraprefrontal infusions of scopolamine. Learn Mem 11(1):78-86. doi: 10.1101/lm.70904 Summary: It is hypothesized that cortical cholinergic dysfunction underlies the cognitive impairments associated with dementia and normal aging. The

Cholinergic modulation of visual attention and working memory: Dissociable effects of basal forebrain 192-IgG-saporin lesions and intraprefrontal infusions of scopolamine. Read More »

Relationship between CSF hypocretin levels and hypocretin neuronal loss.

Gerashchenko D, Murillo-Rodriguez E, Lin L, Xu M, Hallett L, Nishino S, Mignot E, Shiromani PJ (2003) Relationship between CSF hypocretin levels and hypocretin neuronal loss. Exp Neurol 184(2):1010-1016. doi: 10.1016/S0014-4886(03)00388-1 Summary: Narcolepsy has recently been shown to be a neurodegenerative disease. Data from several different sources indicate that narcoleptics have very low levels of

Relationship between CSF hypocretin levels and hypocretin neuronal loss. Read More »

Transfer effects and conditional learning in rats with selective lesions of medial septal/diagonal band cholinergic neurons.

Janisiewicz AM, Baxter MG (2003) Transfer effects and conditional learning in rats with selective lesions of medial septal/diagonal band cholinergic neurons. Behav Neurosci 117(6):1342-1352. doi: 10.1037/0735-7044.117.6.1342 Summary: Conditional learning appears to require cholinergic input to the hippocampus and cingulate cortex. Using a total of 0.5 µl of 0.12 µg/µl 192-Saporin (Cat. #IT-01) injected into the

Transfer effects and conditional learning in rats with selective lesions of medial septal/diagonal band cholinergic neurons. Read More »

Differential effects of cholinergic lesions on dendritic spines in frontal cortex of young adult and aging rats.

Harmon KM, Wellman CL (2003) Differential effects of cholinergic lesions on dendritic spines in frontal cortex of young adult and aging rats. Brain Res 992:60-68. doi: 10.1016/j.brainres.2003.08.029 Summary: The authors used 0.15 µg of 192-Saporin (Cat. #IT-01) injected into the nucleus basalis magnocellularis of rats to study whether dendritic spine density is altered by cholinergic

Differential effects of cholinergic lesions on dendritic spines in frontal cortex of young adult and aging rats. Read More »

Angiotensin II subtype 1A (AT1A) receptors in the rat sensory vagal complex: Subcellular localization and association with endogenous angiotensin.

Huang J, Hara Y, Anrather J, Speth RC, Iadecola C, Pickel VM (2003) Angiotensin II subtype 1A (AT1A) receptors in the rat sensory vagal complex: Subcellular localization and association with endogenous angiotensin. Neuroscience 122(1):21-36. doi: 10.1016/s0306-4522(03)00606-7 PMID: 14596846 Objective: To determine interactive sites in the sensory vagal complex of rat brain using dual immunolabeling of

Angiotensin II subtype 1A (AT1A) receptors in the rat sensory vagal complex: Subcellular localization and association with endogenous angiotensin. Read More »

Extensive lesions of cholinergic basal forebrain neurons do not impair spatial working memory.

Vuckovich JA, Semel ME, Baxter MG (2004) Extensive lesions of cholinergic basal forebrain neurons do not impair spatial working memory. Learn Mem 11:87-94. doi: 10.1101/lm.63504 Summary: The authors wished to examine whether cerebellar Purkinje cells damaged during a cholinergic basal forebrain lesion might be the cause of impaired working memory. Four injections of 0.2-0.3 µl

Extensive lesions of cholinergic basal forebrain neurons do not impair spatial working memory. Read More »

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