Medical research

Source of cognitive decline in aging brains

(PhysOrg.com) -- As people age, memory and the ability to carry out tasks often decline. Scientists looking for ways to lessen that decline often have focused on the "gray matter" -- the cortical regions where high-level ...

Diabetes

Metabolic syndrome linked to smaller brain tissue volume

(HealthDay)—For patients with manifest arterial disease, components of metabolic syndrome (MetS) correlate with smaller brain tissue volume, even in the absence of diabetes, according to a study published online June 19 ...

Neuroscience

White matter changes may predict dementia risk

Elderly people with no memory or thinking problems are more likely to later develop thinking problems if they have a growing amount of "brain rust," or small areas of brain damage, according to a study published in the July ...

Medical research

Saving the brain's white matter with mutated mice

Vanishing White Matter (VWM) disease is a devastating condition that involves the destruction of brain myelin due to a mutation in a central factor. To understand the disease and test potential treatments that could apply ...

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White matter

White matter is one of the two components of the central nervous system and consists mostly of myelinated axons. White matter tissue of the freshly cut brain appears pinkish white to the naked eye because of myelin is composed largely of lipid and a few percent of capillaries. Its white color is due to its usual preservation in formaldehyde. A 20 year-old male has around 176,000 km of myelinated axons in his brain.

The other main component of the brain is grey matter (actually pinkish tan due to blood capillaries). A third colored component found in the brain that appears darker due to higher levels of melanin in dopaminergic neurons than its nearby areas is the substantia nigra.

This text uses material from Wikipedia, licensed under CC BY-SA