Have you ever wondered why some diseases run in families? The answer often lies in our genes. Genetic testing helps decode this information by identifying changes in DNA that may increase the risk of certain conditions. These include certain cancers, heart diseases and neurological disorders.
In this blog, we discuss a few major diseases that can be detected through genetic testing. So stay tuned:
Common Diseases Detected Through Genetic Testing
Let’s read more about a few common diseases and their risks, which you can identify with the help of genetic testing:
1. Cystic Fibrosis
Cystic Fibrosis is an inherited disorder that affects the lungs and digestive system. It occurs as a result of a mutation in the CFTR gene. This gene is responsible for salt and water balance inside the body. Due to the gene defect, your mucus turns thick and sticky, which causes infection and breathing problems in the lungs.
The thick mucus also blocks certain digestive enzymes from reaching the gut. As a result, the nutrients aren’t absorbed well, leading to malnutrition in the patient.
2. Tay-Sachs Disease
Tay-Sachs is a rare genetic disorder which affects the brain and nervous system. A defect in the HEXA gene causes the disease. Due to this, the body is unable to synthesise Hex-A, an enzyme crucial for clearing out toxins from the brain. In its absence, these toxins start to build up in the nervous system, leading to nerve damage. This nerve damage can manifest itself in the form of developmental delays, muscle weakness and vision problems.
3. Sickle Cell Disease
Sickle Cell Disease is an inherited, single-gene disorder caused by mutations in hemoglobin genes. In this condition, the RBCs become sickle-shaped instead of their regular round shape. The sickle-shaped RBCs become hard and sticky. Eventually, they get stuck inside blood vessels, resulting in pain, infections and anaemia.
4. Down Syndrome
Down syndrome is a genetic condition caused by the presence of an extra copy of chromosome 21. This additional copy affects their physical growth, learning ability, and overall development. People with Down syndrome may have characteristic facial features, mild to moderate intellectual disability, and an increased risk of certain medical conditions, such as heart defects and thyroid problems. The chances of having a baby with Down syndrome increase with maternal age.
5. Spina Bifida
Spina bifida is a birth defect that occurs when the spinal cord and backbone do not develop properly during pregnancy. Often, it is linked to a combination of genetic factors and environmental influences. Certain genetic parameters can increase the risk, especially when you combine them with low folic acid levels during pregnancy.
Spina bifida can vary in severity. Some patients may exhibit very mild symptoms, while others can have significant mobility and nerve function issues. Genetic testing and proper prenatal care can help in assessing risk on time, which is an essential factor in disease management.
6. Turner Syndrome
Turner syndrome is a genetic condition that affects females. It occurs when one of the X chromosomes is missing or partially missing. This chromosome difference happens at conception and is not usually inherited.
Turner syndrome can lead to short stature, delayed puberty, infertility, and certain heart or kidney conditions. Some affected individuals may have learning difficulties. The condition can be diagnosed through genetic testing, often during childhood or before birth.
7. Albinism
Albinism is a genetic condition that affects melanin production. Melanin is the pigment responsible for imparting colour to your skin, hair, and eyes. It occurs due to changes in genes involved in melanin production. Usually, the condition is inherited when both parents carry the defective gene.
People with albinism often have very light coloured skin and hair. They may also experience vision problems (such as sensitivity to light and reduced sharpness). Since melanin is also photoprotective in nature, individuals with albinism may also have a higher risk of sun damage. Genetic testing can help confirm the type of albinism.
When Should You Consider Genetic Testing?
You should consider genetic testing under the following conditions:
- You have a family history of genetic disorders.
- You belong to a group which has a higher chance of inheriting certain conditions.
- You are planning a pregnancy and want to better understand potential genetic risks.
Summing Up
Genetic testing can play a major role in the timely detection of serious diseases. How early a disorder is detected plays a major role in deciding how well the treatment works.
But what also matters is the diagnostic lab you choose. Always ensure the lab has a strong reputation and the required accreditations, especially NABL certification, which reflects quality and reliability. LifeCell Diagnostics offers advanced genetic test panels designed to provide accurate and actionable insights. With a wide range of tests available, these panels can be particularly valuable if you are planning to start a family.
So go ahead and discuss with your doctor about the right genetic test. This will help you take the next steps with confidence and clarity!
