ALD is an X-linked genetic disease that is passed on from the mother's side of the family.
Women are carriers of the disease and have a 50 / 50 chance of passing on the gene to their children.
Sons will develop the disease either in childhood (in which case it is always fatal without
treatment and surgery) or as adults. Daughters are carriers, and the vicious cycle starts again.
Because ALD is an X-linked disease, a man with the adult form of ALD will always
pass the carrier gene on to his daughters, but the gene will not be passed on to
his sons.
I am one of two children - my mother passed on the ALD carrier gene to me, which I
passed on to both of my sons. My brother inherited the gene from my mother as well, and
at 31 is showing symptoms of the adult version of ALD. Thankfully, he did not develop
the childhood neurological changes that Robert has begun to exhibit.
We discovered our family had ALD when my 14 year old cousin (the son of my mother's sister,
who also has the carrier gene and passed it to him) had a skiing accident. He was in
a coma and extensive bloodwork exposed the hidden genetic defect that causes ALD. Robert
was 18 months old at the time and I was pregnant with Evan.
My cousin died of ALD before his 15th birthday.
I immediately had Robert tested, and to my disbelief and horror, the doctor's told me
he did indeed have ALD. Even worse, when Evan was born I learned that he too had ALD.
Since then, I have learned and researched everything I could about ALD and nutrition.
I've researched my Mother's family history and have found the traces of ALD going back to the
mid 1800's. Of course, ALD did not have a name back then, but the neurological-related
deaths of male decendants is undeniably from adult-onset ALD.
I'm determined to end the ALD that runs in my family with this generation.
The exciting promise of gene therapy and other new medical technologies gives
me hope that my sons will be cured and that my future grandchildren can grow
happy and healthy.