Science News for September 1, 2001

Breast cancer is multi-step, multi-cell type process

Researchers have uncovered evidence suggesting that genetic changes leading to breast cancer occur first in epithelial cells of breast tissue. LOH analysis reveals frequent mutations in both epithelial and stromal cells, indicating a multi-step process.

SourceOhio State University Wexner Medical Center·JournalHuman Molecular Genetics·DateSep 1, 2001

Growth factor stimulation leads to increase in new neurons in the brain

Researchers at Emory University found that growth factor BDNF stimulates the production of new neurons in several areas of the adult brain, including the striatum and hypothalamus. This discovery suggests a more profound capacity for neurogenesis in the adult forebrain than previously thought.

SourceEmory University Health Sciences Center·DateSep 1, 2001