Biomedical sciences publications
-
Microinjections of the Hypocretin Antagonist Almorexant Vs. Gabaergic Agonist Zolpidem in Basal Forebrain Show Differential Effects on Cortical Adenosine Levels in Freely-Moving Rats
We used in vivo microdialysis and HPLC analysis to examine cortical adenosine (ADO) levels following BF microinjections of ZOL (0.6 µg/0.2 µl), ALM (1.0 µg/0.2 µl), or VEH (aCSF) combined…
-
Neural Correlates of Cognitive Interference and Response Switching in Mild Parkinson Disease
-
Imaging Hippocampal Neuronal Activity across Sleep/Wake States in Freely Behaving Mice
We have utilized a combination of methodologies that collectively enable time-lapse imaging of CA1 neuronal calcium dynamics in behaving mice over periods of many weeks.
-
Aberrant Heat Shock Protein Response Is Accompanied by Oxidative Injury in Aged DJ-1 Deficient Mice
Loss of DJ-1 function contributes to pathogenesis in Parkinson’s disease. Here, we investigate the impact of aging and DJ-1 deficiency in mice.
-
α4β2* and α7 Nicotinic Receptors Play a Role in L-Dopa-Induced Dyskinesias; Studies Using Parkinsonian Knockout Mice
Since α4a5β2 nAChRs are also predominantly on striatal dopamine terminals, these data suggest that drugs targeting α4β2 nAChRs may reduce L-dopa-induced dyskinesias in late stage Parkinson’s disease.
-
Consideration of Species Differences in Developing Novel Molecules as Cognition Enhancers
The issues covered here will aid in task development and utilization across species as well as reinforcing the positive role preclinical research can have in developing procognitive treatments for psychiatric…
-
Vagal Withdrawal During Hot Flashes Occurring in Undisturbed Sleep
Little is known about the impact of hot flashes on cardiac autonomic regulation, in particular vagal control. Thereby, we assessed the cardiac autonomic profile associated with physiological hot flashes occurring…
-
Zolpidem Impairs Attention/Motivation in the Rodent Psychomotor Vigilance Task More Than Almorexant
Here, we tested the effects of ALM and ZOL on the Rodent Psychomotor Vigilance Task (rPVT), a sensitive test of attention and motivation. These results are consistent with the hypothesis…
-
Exchange-Linked Dissolution Agents in Dissolution-DNP C-13 Metabolic Imaging
The use of unlabeled exchange-linked dissolution agents in hyperpolarized metabolic imaging was studied to examine pool size limits and saturation relative to the availability of NADH.
-
Long-Term Ethanol Consumption Changes the Expression of Neuronal Nicotinic Receptors – Implications for Treatment Strategies
-
High Frequency Neuronal Oscillations in a Cynomologus Macaque Test of Sustained Attention Following Nmda Receptor Antagonism
These studies may help to define the role of high frequency oscillations in cognitive processes in higher order species, and to enhance our understanding of EEG recordings as a translatable…
-
Longitudinal Characterization of Diurnal Rhythms of Activity and Core Body Temperature in the zQ175 Knock-in Mouse Model of Huntington’s Disease: Genotype and Sex Interactions
These initial findings demonstrate that mutant huntington expression in this model causes progressive motor and thermoregulatory deficits with significant genotype and sex differences.