Acting as natural computers, our brains contain trillions of cells to store memory and control the body’s functions and emotions. Around one in ten of the countless cells in the … Continue Reading Microglia filmed shaping synapses for the first time.
Excessive alcohol-use is the third leading risk factor for disease following tobacco and blood pressure. The most important include peripheral neuropathy, brain damage, alcoholic liver disease, and nutritional and metabolic … Continue Reading Hormone and neurotransmitter systems disturbed in alcoholics’ brains.
The human brain has a prodigious demand for energy, it uses 20 to 30% of the body’s energy budget. In the course of normal aging, in people with neurodegenerative diseases … Continue Reading Researchers use dietary supplement to re-energize aging brains in animal model.
The incidence of HIV-associated dementia has declined dramatically since the introduction of potent combined antiretroviral therapy; however, milder forms of HIV-associated neurocognitive disorders (HAND) persist. Some 30 to 50 % of … Continue Reading Study shows how neural networks adapt to the presence of a toxic HIV protein.
The auditory nerve is comprised of thousands of tiny nerve fibers responsible for transmitting sound to and from the ear and the brain. Recent discoveries have shown that they are … Continue Reading Researchers identify previously unknown compensatory brain amplifier for hear loss.
Another year of growth for the Healthinnovations, many great breakthroughs, with previously immature technologies and disciplines coming into their own, as crucial parts of global innovation. For instance, biomarkers have … Continue Reading The Top Ten Healthinnovations of 2015.
In comparison to other organs, the human brain has the highest energy requirements. The supply of energy for nerve cells and the particular role of lactic acid (lactate) has been … Continue Reading Study confirms 20 year-old hypothesis on the brain using lactate for energy.
The brain controls most of a person’s behaviour and changes in how brain areas work and communicate with each other can alter this behaviour and lead to impairments associated with … Continue Reading New neuroimaging technique shows how the ‘social brain’ is impaired in autism.
Differences in the size and structure of certain brain areas have been found in some adults diagnosed with schizophrenia. Early findings came from the discovery of enlarged ventricles in people … Continue Reading Neuroimaging matches specific schizophrenia behaviour to the brain’s anatomy.
Cognitive function is known to change during normal aging and in age-related disease such as Alzheimer’s disease. Although the exact cause for age-related cognitive decline is not clear, recent studies … Continue Reading Researchers combat memory loss by enhancing brain function in animal model.
Dopamine deficiency in the basal ganglia is known to cause severe motor dysfunctions such as slowness of movement, or bradykinesia, as seen in Parkinson’s disease. Dopamine binds D1 and D2 receptors … Continue Reading Study identifies the cause of slowness of movement in Parkinson’s disease.
Glutamate is an amino acid with very different functions. In the pancreas, it modulates the activity of the pancreatic ß-cells responsible for insulin production, whereas in the brain it is … Continue Reading Study verifies long-standing hypothesis that glutamate is brain’s energy-source.
In the mammalian central nervous system, neurons receive inhibitory synaptic inputs from gamma-aminobutyric acid (GABA)ergic interneurons and excitatory inputs from glutamatergic neurons. Evidence suggests that the dysfunction of appropriate GABAergic … Continue Reading Study implicates two genes in the cause of schizophrenia, vital for signalling balance.
Human multitasking is the apparent performance by an individual of handling more than one task, or activity, at the same time. Studies have shown that some people can be trained … Continue Reading Neuroimaging study maps the neural basis of multitasking.
Antidepressants are recommended as a first-line treatment of severe depression and for the treatment of mild-to-moderate depression that persists after conservative measures such as cognitive therapy. Experts recommend against their … Continue Reading Study maps structural brain changes caused by antidepressants.
Synaptic mitochondria are thought to be critical in supporting neuronal energy requirements at the synapse, and bioenergetic failure at the synapse may impair neural transmission and contribute to neurodegeneration. However, … Continue Reading Researchers link impaired mitochondria and a loss of ATP to neurodegeneration.