Promising results for new Alzheimer's therapy -- ScienceDaily

"Patients with Alzheimer's disease suffer a selective and early breakdown of so-called cholinergic nerve cells, which require a specific nerve growth factor (NGF) -- essentially a group of proteins necessary for cell growth and survival -- to function. As NGF levels decline, the cholinergic nerve cells begin to degrade and the patient's condition slowly deteriorates.
In an attempt to curb the breakdown of the cholinergic nerve cells, researchers at Karolinska Institutet's Centre for Alzheimer's Research and their colleagues at Karolinska University Hospital's neurosurgery clinic and the Danish biotech company NsGene introduced NGF directly into the brains of Alzheimer's patients. To do this, they used NGF-producing cell capsules, placing them in the basal fore-brain where the cholinergic cells reside using precision stereotactic surgery. There the capsules, which can easily be removed, release NGF to the surrounding cells in order to prevent their degradation"

"Our results show that when the patients received NGF, there was a significant increase in ChAT in the CSF," says Dr Taher Darreh-Shori, one of the researchers involved in the study. "The patients that exhibited this increase were also those that responded best to the treatment. Our PET scans also showed an increase in cholinergic cell activity and metabolism in the brain."
In addition, the researchers were able to detect a retardation of memory impairment over time compared with untreated patients. While all this suggests that cholinergic functionality improved in the Alzheimer's patients who had received NGF therapy, the team adds the caveat that far-reaching conclusions should not be drawn from the results:

No comments: