| Her results will be
published in the Journal of Alzheimer Disease today.
Women with Down Syndrome have an earlier onset of
menopause compared to women in the general population, 44 years of age
and 52 years of age, respectively. Coppus' findings show a strong
relationship between the age of menopause onset and the age at which
dementia is diagnosed. Coppus: "Women with Down Syndrome with an early
onset of menopause also appear to suffer from dementia at an early age.
In addition, my study shows that these women also die younger."
Alzheimer's disease is the major cause of illness and
death among people with Down Syndrome. The Epidemiology department of
Erasmus MC has been studying more than 500 people with Down Syndrome,
above the age of 45, since 2000. In particular, the factors affecting
the onset of dementia and death are studied. The health development
found within this group is in fact an accelerated version of the
developments found in the general population. The research results can
therefore be translated to similar results for the general population.
A first step in the development of Alzheimer is the
build up of so-called amyloid in the brain. The deposition of this
amyloid occurs under influence of a certain gene, higher levels of which
are found in people with Down Syndrome. Down Syndrome is a chromosomal
disorder in which there are three copies of chromosome 21. This
chromosome has various genes that play a role in neurological diseases.
The most important of these is the gene that is responsible for the
production of the protein amyloid. Coppus: "Studying the various factors
that influence the development of Alzheimer's disease among people with
Down Syndrome also improves our understanding of the role of amyloid in
the development of Alzheimer's disease within the general population."
As it appears, not only can a relationship with the
age of onset of dementia be determined but also a relationship between
early onset of menopause and dying young. Coppus: "As dementia itself
also leads to a reduced life expectancy, I made calculations in which I
corrected the results of the effect of dementia on death. Despite this,
the relationship between early menopause onset and dying young remains.
The research results provide substantial information on the relationship
between menopause and dementia and the relationship between menopause
and death." |