Peripheral nerve injury leads to various injury-induced responses in sensory neurons including physiological pain, neuronal cell death, and nerve regeneration. In this study, we performed single-cell RNA-sequencing (scRNA-seq) analysis of mouse nonpeptidergic nociceptors (NP), peptidergic nociceptors (PEP), and large myelinated sensory neurons (LM) under both control and injury conditions at 3 ...

Candidate plasticity-related gene 15 (cpg15) encodes a protein that regulates dendritic and axonal arbor growth and synaptic maturation. In the present study, we investigated the potential role of CPG15 in regulating the neuronal network re-establishment after ischemic brain injury. In the mouse model with transient global ischemia (TGI), CPG15 transcripts and proteins were determined using RT-...

Cathepsin B is one of the major lysosomal cysteine proteases involved in neuronal protein catabolism. This cathepsin is released after traumatic injury and increases neuronal death; however, release of cystatin C, a cathepsin inhibitor, appears to be a self-protective brain response. Here we describe the effect of cystatin C intracerebroventricular administration in rats prior to inducing a tra...

Cultured cortical neurons deprived of glucose in a defined solution containing 2 mM glutamine became acutely swollen and went on to degenerate over the next day; this neuronal loss could be substantially attenuated by an N-methyl-D-aspartate (NMDA) antagonist. Removal of extracellular glutamine produced two effects: an increase in overall neuronal injury and a decrease in the protective effect ...

Cerebral ischemia is a leading cause of death and long-term disabilities worldwide. Excessive intracellular Ca(2+) accumulation in neurons has been considered essential for neuronal injury associated with cerebral ischemia. Although the involvement of glutamate receptors in neuronal Ca(2+) accumulation and toxicity has been the subject of intensive investigation, inhibitors for these receptors ...

AimTo explore if electrographic status epilepticus (ESE) after cardiac arrest causes additional secondary brain injury reflected by serum levels of two novel biomarkers injury: neurofilament light chain (NfL) originating from neurons and glial fibrillary acidic protein (GFAP) cells.MethodsSimplified continuous EEG (cEEG) NfL GFAP, sampled at 24, 48 72 h arrest, were collected during the Target ...

Cyclooxygenase-2 (COX-2) is up-regulated during ischemia. However, the role of COX-2 in neuronal injury is still unclear. In this study we tested whether neuronal overexpression of human COX-2 in a transgenic mouse model potentiates neuronal injury after global ischemic insult. Further, we tested whether the neuronal injury could be ameliorated by intra-ischemic mild hypothermia (33-34 degrees ...

Quantitative concentration-toxicity relationships were determined for the injury of cultured murine cortical neurons by several excitatory amino acid (EAA) agonists. All tested agonists produced concentration-dependent neuronal injury at concentrations between 1 and 1000 microM. With 5 min exposure, glutamate, aspartate, N-methyl-D-aspartate (NMDA), L-homocysteate (HCA), and quisqualate all had...

glial cell line-derived neurotrophic factor (gdnf) plays important roles not only for the differentiation of neurons during normal development but also for the survival and recovery of many populations of mature neurons. the effect of traumatic brain injury (tbi) on the expression of gdnf is currently unknown. to determine if there is alteration in gdnf after tbi we examined the effect of contr...

Perinatal asphyxia induces neuronal cell death and brain injury, and is often associated with irreversible neurological deficits in children. There is an urgent need to elucidate the neuronal death mechanisms occurring after neonatal hypoxia-ischemia (HI). We here investigated the selective neuronal deletion of the Atg7 (autophagy related 7) gene on neuronal cell death and brain injury in a mou...