New genetic risk marker for late-life depression
News Nov 03, 2015
One of the most powerful predictors in neuropsychiatry is the epsilon 4 (ε4) allele of the apolipoprotein gene (APOE).
Individuals who carry this ε4 variant of APOE are at increased risk for developing Alzheimer’s disease, early age of Alzheimer’s disease onset, and more rapid progression of Alzheimer’s disease symptoms. APOE ε4 has also been associated with atherosclerosis as well as cardiovascular and cerebrovascular disease.
A new study published in the November issue of Biological Psychiatry suggests that even when controlling for the risk for Alzheimer’s disease, the APOE ε4 allele also conveys an increased risk for late-life depression.
In the study, researchers examined the relationship between APOE ε4 and depression in a large population-based sample of 839 older Swedish adults followed over 5 years.
“In our study, the presence of the APOE ε4 predicted future depression, even after excluding individuals who later developed dementia,” explained corresponding author Dr. Silke Kern at the University of Gothenburg. “It was also related to dementia. APOE ε4 might be a marker for identifying older persons at risk to develop depression or dementia, which could be important for prevention and early detection of these common disorders.”
“Late-life depression is an under-appreciated source of distress and disability in older people,” said Dr. John Krystal, Editor of Biological Psychiatry. “The current study suggests a new link to the biology of Alzheimer’s disease, even among people who do not show signs of memory impairment.”
Note: Material may have been edited for length and content. For further information, please contact the cited source.
Kern S et al. A 9-Year Prospective Population-Based Study on the Association Between the APOE*E4 Allele and Late-Life Depression in Sweden. Biological Psychiatry, Published November 15 2015. doi: 10.1016/j.biopsych.2015.01.006
Catalyst Can Degrade Alzheimer's-Related Amyloid Peptide Under Near-Infrared LightNews
A new, biocompatible photooxygenation catalyst that can selectively oxygenate and degrade the pathogenic aggregation of Alzheimer's disease (AD)-related amyloid-β peptide (Αβ) under near-infrared (NIR) light irradiation has been developed.READ MORE
Comments | 0 ADD COMMENT
World Congress on Pathology and Laboratory Medicine
Sep 10 - Sep 11, 2018
World Congress on Advances in Addiction Science and Medicine
Sep 24 - Sep 25, 2018