Neuroscience researchers show how astrocytes control the generation of new neurons in the brain. “In the brain, astrocytes control how many new neurons are formed from neural stem cells and survive to integrate into the existing neuronal networks. Astrocytes do this by secreting specific molecules but also by much less understood direct cell-cell interactions with stem cells”, says Prof. Milos Pekny.
When aggressive, malignant tumors appear in more than one location in the brain, patient survival tends to be significantly shorter than when the disease starts as a single tumor, even though patients in both groups undergo virtually identical treatments, according to research at Cedars-Sinai Medical Center's Maxine Dunitz Neurosurgical Research Institute.
Researchers published a study outlining how a new type of non-invasive brain scan taken immediately after a seizure gives additional insight into possible causes and treatments for epilepsy patients.
Neuroscientists have believed that three brain regions are critical for self-awareness: the insular cortex, the anterior cingulate cortex, and the medial prefrontal cortex. Patient R is helping a research team show that self-awareness is more a product of a diffuse patchwork of pathways in the brain—including other regions—rather than confined to specific areas.
New research would help emergency care workers and battlefield medics stabilize blood flow in the brains of traumatic injury victims. Researchers developed a nanoparticle-based antioxidant that quickly quenches free radicals that interfere with regulation of the brain’s vascular system.
Using bioluminescent proteins from a jellyfish, scientists lit up the inside of a neuron, capturing spectacular video footage that shows the movement of proteins throughout the cell. The video offers a rare peek at how proteins, the brain's building blocks, are directed through neurons to renew its structure.
A low dose of the sedative clonazepam alleviated autistic-like behavior in mice with a mutation that causes Dravet syndrome in humans.
Have you ever wondered why you can remember things from long ago as if they happened yesterday, yet sometimes can't recall what you ate for dinner last night? A new study suggests it's because how much something means to you actually influences how you see it as well as how vividly you can recall it later.
A new study finds that after a stroke, muscle synergies are activated in altered ways. Furthermore, those disruptions follow specific patterns depending on the severity of the stroke and the amount of time that has passed since the stroke. Distinctive patterns could allow doctors to develop better rehab programs for stroke patients.
Researchers discover that an enzyme known for generating toxic brain plaques in Alzheimer's disease also causes additional memory and cognitive deficits via a separate mechanism. They found that BACE1 disrupts the cell's production of other molecules required for PKA function. By that mechanism, BACE1 inactivates PKA and therefore inhibits memory formation in mice, even in the absence of neurotoxic β-amyloid.