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US scientists have concluded that transplanting bone marrow cells from young laboratory animals' bones into other pyramidal bodies had ended their cognitive decline and rejuvenated the brain. The results of a study by researchers at Cedar-Sinai Medical Center corroborate earlier research findings that cognitive impairment is partly related to aging of blood cells produced by the bone marrow in the pyramidal body.
"Previous studies have shown that the injection of blood from young mice can stop brain aging in older mice, but they have not provided any explanation," said Helen Goodridge, a professor. Assistant of Medicine and Biomedical Sciences at the Center in charge of the study. "Our study suggests an answer: the reason lies in the distinct characteristics of young blood cells," she said. If future research shows that young cells can do the same for the elderly, the progression of degenerative diseases such as Alzheimer's can be slowed, said Goodridge.
In the study published in the journal "Cominuation Biology", researchers implanted two bone marrow cells in 18-month-old mice, either mice of the same age or mice aged 4 months. They found that brain-related brain parts retained a larger neural network in their neural network in mice receiving younger cells than those receiving older cells, although the number of neurons remained stable in both cases.
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