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| http://dx.doi.org/10.1016/j.cub.2014.09.024 | DOI Listing |
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Hippocampal reelin and GAD67 gene expression and methylation in the GFAP.HMOX1 mouse model of schizophrenia.
Biochim Biophys Acta Mol Cell Res
January 2025
Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada. Electronic address:
Schizophrenia is a complex neuropsychiatric disorder featuring enhanced brain oxidative stress and deficient reelin protein. GFAP.HMOX1 mice that overexpress heme oxygenase-1 (HO-1) in astrocytes manifest a schizophrenia-like neurochemical, neuropathological and behavioral phenotype including brain oxidative stress and reelin downregulation.
View Article and Find Full Text PDFFemale Syrian hamster analyses of bremelanotide, a US FDA approved drug for the treatment of female hypoactive sexual desire disorder.
Neuropharmacology
January 2025
Department of Neuroscience, University of Minnesota, Minneapolis, MN, 55455, USA.
Hypoactive sexual desire disorder (HSDD) is the most reported sexual dysfunction among premenopausal women worldwide. Bremelanotide, trade name Vyleesi, has been approved by the United States Food and Drug Administration to treat HSDD. However, despite approval, very little is known about its neurobiological mechanism of action.
View Article and Find Full Text PDFRetinal ganglion cells encode the direction of motion outside their classical receptive field.
Proc Natl Acad Sci U S A
January 2025
Department of Brain Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel.
Retinal ganglion cells (RGCs) typically respond to light stimulation over their spatially restricted receptive field. Using large-scale recordings in the mouse retina, we show that a subset of non- direction-selective (DS) RGCs exhibit asymmetric activity, selective to motion direction, in response to a stimulus crossing an area far beyond the classic receptive field. The extraclassical response arises via inputs from an asymmetric distal zone and is enhanced by desensitization mechanisms and an inherent DS component, creating a network of neurons responding to motion toward the optic disc.
View Article and Find Full Text PDFTemperature Regulates Astroglia Morphogenesis Through Thermosensory Circuitry in Caenorhabditis elegans.
Glia
January 2025
State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science and Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, P. R. China.
Astrocytes are the most abundant type of macroglia in the brain and play crucial roles in regulating neural development and functions. The diverse functions of astrocytes are largely determined by their morphology, which is regulated by genetic and environmental factors. However, whether and how the astrocyte morphology is affected by temperature remains largely unknown.
View Article and Find Full Text PDFRetrieval of an ethanol-conditioned taste aversion promotes GABAergic plasticity in the anterior insular cortex.
J Neurosci
January 2025
Bowles Center for Alcohol Studies, University of North Carolina School of Medicine, Chapel Hill, NC, USA; Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA, 27599.
Blunted sensitivity to ethanol's aversive effects can increase motivation to consume ethanol; yet, the neurobiological circuits responsible for encoding these aversive properties are not fully understood. Plasticity in cells projecting from the anterior insular cortex (aIC) to the basolateral amygdala (BLA) is critical for taste aversion learning and retrieval, suggesting this circuit's potential involvement in modulating the aversive properties of ethanol. Here, we tested the hypothesis that GABAergic currents onto aIC-BLA projections would be facilitated as a consequence of retrieval of an ethanol-conditioned taste aversion (CTA).
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