Are you a carrier of hereditary mutations? Find out with a genetic test.

What does it mean to be a carrier of hereditary mutations?

An individual who is a carrier of hereditary mutations is one who has mutations in some gene or in several that are transmitted from generation to generation. We must say that some mutations directly cause the disease, while others are asymptomatic, only causing the disease in offspring if the other person with whom they are conceived is a carrier or simply an element that increases the risk of developing diseases.

It's important to clarify that being a carrier of a genetic mutation doesn't necessarily mean it's hereditary. For this reason, it's a good idea to put things in perspective and, to the extent possible, understand your family tree. This can be helpful in providing a first clue as to where to start when locating these mutations.

In any case, and with the degree of scientific development and knowledge of the genome For today's human population, knowing if you're a carrier is important. There are numerous tests that can help you find out. We'll tell you how to take them and everything you need to know.

How a genetic test helps you detect hereditary mutations

A genetic test The hereditary mutation carrier test works by detecting genetic markers that indicate these mutations. This is a fundamental element, since it has already been proven that certain hereditary diseases are directly associated with certain genetic markers. This saves significant time that would otherwise be spent on diagnostic work.

The process to analyze the sample It's simple: you need oral mucosal fluid, usually blood or semen. Once you have it, the DNA will be isolated and analyzed. By comparing it with the available genetic information from ancestors. This way, we can determine whether or not a person carries the mutation. However, for the tests to offer guarantees, they must always be performed in a laboratory. Traceability, in these cases, is essential to ensure the sample doesn't deteriorate and is considered valid. One test that works well is the genetic panel, because it provides information on different mutations compatible with certain diseases.

As we've said before, being a carrier is not, per se, indicative of having the disease. But it will clear up any doubts, especially if you know what you want to test for. Let's clarify some frequently asked questions about these tests:

1. What hereditary diseases can be detected with the test?

It's important to note that the cause-effect relationship between some inherited genetic diseases is well-established. However, in other cases, we would rather speak of probability. For this reason, although information from carrier testing is essential, additional data is sometimes needed.

The diseases that they do have one direct relationship between genetics and inheritance These are: Marfan syndrome , neurofibromatosis and Huntington's disease, as autosomal dominant in the case of autosomal recessive diseases, we find cystic fibrosis, phenylketonuria or sickle cell anemia. We must also highlight certain diseases linked to the X chromosome such as Duchenne muscular dystrophy or hemophilia. And, finally, there are mitochondrial diseases such as Leber neuropathy and Leigh syndrome.

There are diseases where genetics, although it does not have a direct cause-effect effect, does increase the probability. This happens in certain types of cancer such as breast cancer, type 2 diabetes, Parkinson's, or certain heart conditions. So, without neglecting environmental factors and habits, it can also give you clues.

2. How does a test affect treatments?

Taking a carrier test is essential, first and foremost, to avoid wasting time. Why do we say this? Because, often, due to a lack of information, the right decisions aren't made to properly treat an illness.

Remember that symptoms can sometimes be confusing, especially if they are not very acute. Therefore, being certain of being a carrier of a mutation allows for two things: first, to perform additional tests to verify whether or not you have the disease; second, to speed up treatments and, in this way, have a better life expectancy. Not surprisingly, uncertainty introduces an element of wasted time, which can sometimes be very problematic.

For all these reasons, and if you have the slightest suspicion, a carrier test is advisable. You'll save time, money, and, why not say it, stress. Not surprisingly, when you have all the necessary information, it's much easier to carry out treatment.

3. When can a carrier test be done?

One of the features of carrier tests is that they can be done at any time in life . But even more, prenatal tests can be performed, starting in the 9th or 10th week of pregnancy, although they are more invasive than in other cases. In recent years, some newborn screening tests have become more widespread, but a child, adolescent, or adult could also undergo them. It's important to keep all these aspects in mind.

4. How does a carrier test help with family planning?

The hereditary mutation carrier test is very useful when considering the Family planning . On the one hand, because it helps rule out risks. Secondly, because if done jointly (compatibility testing), it will help determine if there is a risk of offspring having a hereditary disease.

Obviously, with all this information, alternative reproductive decisions can be made. One option is in vitro fertilization, for example. But adoption could also be chosen, because in that case, the genetic factor would be irrelevant.

In summary…

To find out if you are a carrier of hereditary mutations, you can find out with a genetic test. Today, there are numerous tests and in Genotics You'll find several types. Want to learn more about what's available? We encourage you to get to know us better to find the test that best suits your needs.