Neuroscience

Evidence found of neurogenesis in people up to age 87

A team of researchers affiliated with several institutions in Spain has found evidence of neurogenesis in the brains of people right up to old age. In their paper published in the journal Nature Medicine, the group describes ...

Neuroscience

Exercise the body, build the brain

Researchers have, for the first time, isolated exercise as the key factor in triggering the production of functional new cells in the learning and memory centre of the brain.

Neuroscience

Brain chemical reduces anxiety, increases survival of new cells

New research on a brain chemical involved in development sheds light on why some individuals may be predisposed to anxiety. It also strengthens understanding of cellular processes that may be common to anxiety and depression, ...

Medical research

Mouse study finds link between gut bacteria and neurogenesis

Antibiotics strong enough to kill off gut bacteria can also stop the growth of new brain cells in the hippocampus, a section of the brain associated with memory, reports a study in mice published May 19 in Cell Reports. Researchers ...

Medical research

Swiss researchers pinpoint molecule lack in depression

A Swiss university said Monday that researchers have found that a molecule, which is linked to tissue swelling and cancer, may also be associated with depression, a condition affecting some 121 million people.

Neuroscience

Birth of new neurons in the human hippocampus ends in childhood

One of the liveliest debates in neuroscience over the past half century surrounds whether the human brain renews itself by producing new neurons throughout life, and whether it may be possible to rejuvenate the brain by boosting ...

Medical research

Why the sense of smell declines in old age

As mammals age, their sense of smell deteriorates. In a study published in the journal Cell Reports, an interdisciplinary research team at Helmholtz Zentrum M√ľnchen and the University Medical Centre Mainz investigated why ...

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Neurogenesis

Neurogenesis (birth of neurons) is the process by which neurons are generated from neural stem and progenitor cells. Most active during pre-natal development, neurogenesis is responsible for populating the growing brain with neurons. Recently neurogenesis was shown to continue in several small parts of the brain of mammals: the hippocampus and the subventricular zone. Studies have indicated that hormones, such as testosterone in vertebrates and ecdysone in invertebrates, have an influence on the rate of neurogenesis.

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