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Human umbilical cord blood cells found to enhance survival and maturation of key brain cells
Date:12/14/2010

Laboratory culture (in vitro) studies examining the activity of human umbilical cord blood cells (HUCB) on experimental models of central nervous system aging, injury and disease, have shown that HUCBs provide a 'trophic effect' (nutritional effect) that enhances survival and maturation of hippocampal neurons harvested from both young and old laboratory animals.

"As we age, cognitive function tends to decline," said Alison E. Willing, PhD, a professor in the University of South Florida's (USF) Department of Neurosurgery and Brain repair and lead author for a study published in the current issue of Aging and Disease (www.aginganddisease.org) . "Changes in cognitive function are accompanied by changes in the hippocampus, an area of the brain where long term memory, as well as other functions, are located, an area of the brain among those first to suffer the effects of diseases such as Alzheimer's disease."

According to Dr. Willing and her USF co-authors, these changes contribute to stroke and dementia in the aging population when neural cells become more susceptible to stressors and disease processes. Because HUCB cells have received attention as an alternative source of stem cells that have been studied and shown to be effective with wide therapeutic potentials, how the cells might be used to repair the diseased, as well as normally aging brain, has become an important question.

"It is important to understand how these cells may be manipulated to support hippocampal function in order to develop new therapies," she explained. "Accordingly, this study sought to examine the potential for HUCBs to enhance proliferation and increase survival of hippocampal cells derived from aging adult rat brains."

The study found that HUCBs were not only able to protect hippocampal neurons taken from the brains of young adult and aged rats, but also promoted the growth of dendrites - the branching neurons acting as signaling nerve communicatio
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Contact: Randolph Fillmore
rfillmor@health.usf.edu
813-974-0868
University of South Florida (USF Health)
Source:Eurekalert

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