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ELECTROPHYSIOLOGICAL CHANGES IN THE PARTICIPANTS OF THE LIQUIDATION OF THE CONSEQUENCES OF THE CHORNOBYL ACCIDENT AND THE MILITARY PERSONNEL OF THE UKRAINIAN DEFENSE FORCES RECOVERING FROM CORONAVIRUS DISEASE (COVID-19).
Probl Radiac Med Radiobiol
December 2024
State Institution «National Research Center of Radiation Medicine, Hematology and Oncology of the National Academy of Medical Sciences of Ukraine», 53 Yuriia Illienka Str., Kyiv, 04050, Ukraine.
Objective: to conduct a clinical and neurophysiological study of Chornobyl clean-up workers and military personnelof the Armed Forces of Ukraine (AFU) with previous coronavirus disease (COVID-19) and individuals of the comparison groups to study the impact of long-term effects of ionizing radiation, psychoemotional stress and previouscoronavirus infection on cerebral functioning.
Materials And Methods: A prospective clinical study of Chornobyl clean-up workers and servicemen of the ArmedForces of Ukraine (AFU) who had coronavirus disease (COVID-19) and individuals of the comparison groups. Themain group - 30 males participated in liquidating the consequences of the Chornobyl Nuclear Power Plant (ChNPP)accident with previously verified COVID-19 (Chornobyl clean-up workers).
Long-term optical imaging of the spinal cord in awake behaving mice.
Nat Methods
December 2024
Department of Anatomy, University of California, San Francisco, CA, USA.
Advances in optical imaging and fluorescent biosensors enable study of the spatiotemporal and long-term neural dynamics in the brain of awake animals. However, methodological difficulties and fibrosis limit similar advances in the spinal cord. Here, to overcome these obstacles, we combined in vivo application of fluoropolymer membranes that inhibit fibrosis, a redesigned implantable spinal imaging chamber and improved motion correction methods that together permit imaging of the spinal cord in awake behaving mice, for months to over a year.
View Article and Find Full Text PDFExperiences and beliefs related to sleep paralysis among the general population of the twin cities: A cross-sectional study.
Sleep Med
December 2024
Foundation University Medical College, Defence Avenue, DHA Phase-I, Islamabad, Pakistan. Electronic address:
Background: Sleep paralysis (SP) is a rapid eye movement (REM) parasomnia that occurs during the transition between wakefulness and sleep. During this brief state, a person is conscious but unable to move or speak, often experiencing hallucinations. It is 'isolated' when it occurs without other symptoms of narcolepsy or sleep disorders.
View Article and Find Full Text PDFA distributed auditory network mediated by pontine central gray underlies ultra-fast awakening in response to alerting sounds.
Curr Biol
October 2024
Zilkha Neurogenetic Institute, Center for Neural Circuits and Sensory Processing Disorders, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Physiology and Neuroscience, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA. Electronic address:
Sleeping animals can be woken up rapidly by external threat signals, which is an essential defense mechanism for survival. However, neuronal circuits underlying the fast transmission of sensory signals for this process remain unclear. Here, we report in mice that alerting sound can induce rapid awakening within hundreds of milliseconds and that glutamatergic neurons in the pontine central gray (PCG) play an important role in this process.
View Article and Find Full Text PDFEffects of non-rapid eye movement sleep on the cortical synaptic expression of GluA1-containing AMPA receptors.
Eur J Neurosci
July 2024
Department of Psychiatry, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Converging electrophysiological, molecular and ultrastructural evidence supports the hypothesis that sleep promotes a net decrease in excitatory synaptic strength, counteracting the net synaptic potentiation caused by ongoing learning during waking. However, several outstanding questions about sleep-dependent synaptic weakening remain. Here, we address some of these questions by using two established molecular markers of synaptic strength, the levels of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid) receptors containing the GluA1 subunit and the phosphorylation of GluA1 at serine 845 (p-GluA1(845)).
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