Is a simple cholesterol test not enough for diagnosis?
Genetic
testing is valuable because the genetic variations are permanent so can
guide treatment and your adherence to the treatment. Moreover, it can
help indicate if your children should be tested and testing early is
crucial. Also LDLc levels can be masked by high levels of triglycerides
or fibrinogen, which do not affect testing by the LIPOchip.
Will FH go away?
No. You will always have FH which decreases your body's ability to
remove cholesterol. So permanent treatment regimens and lifestyle
modifications will be necessary to counter the progression of the
disease.
If I have FH will my children have FH?
Maybe. FH comes in two forms, heterozygous FH and the more severe homozygous FH.
If one parent has heterozygous FH there is a 50% chance that their children will
have heterozygous FH. But if both parents have heterozygous FH there is a 50%
chance a child will also have heterozygous FH and an additional 25% chance that
a child will have the more severe form of the disease, homozygous FH. Homozygous
FH occurs in about 1 in a million births.
If my brother or sister does not have FH genetically am I safe?
No. You could still have FH if one of your parents has FH.
What happens if my children have genetically confirmed FH?
Studies have shown early treatment even in children has been very effective at combating the long term effects of FH.
My father had coronary artery disease but I feel fine. Does this means I'm FH free?
Cholesterol build up is cumulative and silent. If one of your parents has FH
there is a 50% chance you have FH (higher if both your parents have FH).
LIPOchip can help confirm the genetic basis and then guide testing of relevant
family members, your children, your siblings and their children.
If I test negative for FH using LIPOchip does this mean I do not have FH genetically?
No. The LIPOchip looks for the most common causes of FH which are
genetic variations in the LDLR and APOB genes. However, as scientists
study FH they may identify new variants in genes not currently measured
with the LIPOchip.
Do I have to get retested every few years?
No, just once is enough.
Is the LIPOchip test painful?
No. All that is required is patient DNA. This can be provided by a blood draw.
Does the LIPOchip test identify all mutations in the LDLR gene that causes FH?
Yes, in a two part system. We first screen the DNA for known mutations
using our LIPOchip. If there is an indication that the DNA contains a
variation not on our LIPOchip we then sequence the sample. This will
identify any LDLR variations not on the LIPOchip.
Who is the "index" or "proband"?
This is a medical phrase that refers to the first patient to be tested and found
to have the disease within a family.
Can I order this test from Progenika directly?
LIPOchip must be prescribed by your physician. You can contact us for more information on the test for yourself and your doctor.