Home > Blogs > Pulmonary Care > Is Asthma A Genetic Disease?

Is Asthma A Genetic Disease?

Is Asthma Genetic?

Overview

No single genetic test exists for asthma prediction. How common is asthma? Probing into genetic markers and environmental factors may identify high-risk individuals and facilitate early prevention. Guided Medication Treatment: here, genetic-test may help tweak personalised treatment plans to provide better management and control of symptoms.’

The Genetic Link To Asthma

Genetics is thought to play a role in asthma. The study suggests that asthma is an inherited disease. If a child has two or more genetic disorders which include asthma and other allergen-induced diseases, as he or she begins to develop these problems, he or she is more likely to develop asthma as well. This is a rare condition.

Several genes have been identified that appear to influence asthma risk. These include genes related to immune responses, inflammation, and airway function. For instance:

  • ADAM33: Linked to airway remodelling, which increases susceptibility to asthma symptoms.
  • IL4 and IL13: Involved in immune response and inflammation, both of which are key factors in asthma.
  • ORMDL3 and GSDMB: Associated with childhood asthma, particularly in those with more severe cases.

Despite these findings, having these genetic markers does not guarantee that someone will develop asthma. Genetics provide a predisposition, but it’s the interaction with environmental factors that ultimately determines if the disease will manifest.

The Role Of Environmental Factors

While genetics play a key role in asthma susceptibility, environmental factors are often the trigger for the onset of the disease or its exacerbation. Common environmental triggers include:

  • Allergens: Substances such as pollen, pet dander, and dust mites can trigger asthma symptoms in sensitive individuals.
  • Air Pollution: Exposure to pollutants like smoke and chemicals can irritate the airways and increase asthma risk.
  • Respiratory Infections: Certain infections, particularly viral infections like respiratory syncytial virus (RSV) during childhood, have been linked to the development of asthma.
  • Secondhand Smoke: Exposure to tobacco smoke can worsen symptoms or even trigger asthma in individuals predisposed to it.

These environmental factors interact with the genetic predisposition, often determining the age of onset, severity, and frequency of asthma symptoms.

Epigenetics: The Influence of Lifestyle

Epigenetics is the examination of how environmental influences can potentially alter gene expression without modifying DNA sequence. Asthma, specifically, is still relevant because those genes can be inherited from a person but what is dependent upon environmental exposures, such as smoking or air pollution succeeding them, can result in changed regulation of expression of symptoms (tell the body to switch on/off).

Secondhand smoke exposure can cause asthma in children, as it increases the likelihood of them developing the condition. However, minimising contact with these triggers can likely reduce the severity of the injury or result in its resolution. 

Inheritance of Asthma

Asthma, like many other genetic diseases, cannot follow a simple pattern of inheritance. Though it runs in families, its inheritance is polygenic. The chance that a child will have asthma is influenced by multiple factors including whether either or both parents have asthma. If a person has asthma, the risk of their child developing it later is higher; if both parents have asthma, the chance that the children will be asthmatic is extremely high whilst if one parent has this condition, then the risk drops down.

Can Asthma Be Predicted?

At present, there is no singular genetic test for asthma that has been developed. What are the odds of a person getting asthma for instance? The continuous study of genetic as well as environmental influences may promote profiling of ‘at-risk’ individuals for purposes of targeted interventions. Genetic testing could also help in changing and fine-tuning the treatment approaches in relation to symptoms.

Why Choose Sahyadri Hospital for Asthma Care?

A holistic approach to managing asthma requires a combination of genetic and environmental considerations. Patients suffering from asthma can receive individualised treatment at Sahyadri Hospital. Why is Sahyadri considered the top choice for asthma patients:. 

  • Experienced Specialists: Sahyadri’s pulmonologists are highly skilled in diagnosing and treating asthma, ensuring that patients receive the best possible care.
  • Advanced Diagnostics: Sahyadri employs state-of-the-art diagnostic tools, such as spirometry and peak flow monitoring, to assess lung function and tailor the treatment approach.
  • Personalised Treatment Plans: Treatments at Sahyadri are customised based on the patient’s genetic background, environmental triggers, and lifestyle, offering a holistic approach to asthma care.
  • Pulmonary Rehabilitation: Sahyadri provides pulmonary rehabilitation programs, which include breathing exercises and physical therapy to help patients improve lung function and manage asthma symptoms.
  • Allergy Management: For asthma patients triggered by allergens, Sahyadri offers comprehensive allergy testing and immunotherapy to reduce sensitivity and control asthma symptoms.

Conclusion

Asthma has a genetic component but the environment can trigger its development. There is no one simple cure for asthma, but for most people, with the appropriate blend of treatments and lifestyle measures, it can be controlled. Sahyadri Hospitals criteria-based assessment, in combination with highly advanced diagnostic equipment and individualised treatment protocols, empowers asthma patients to live a full and active lifestyle with minimal symptoms. Sahyadri also improves contact info: Sahyadri’s expert COVID doctors can provide the required care and know-how you need in case any of your loved ones are suffering from asthma too.

 

FAQ’s 

1.Is asthma purely a genetic disease?
No, asthma is influenced by both genetic and environmental factors. While genetics may predispose someone to asthma, environmental triggers often determine if and when the disease manifests.

2. How does genetics influence asthma?
Certain genes, like ADAM33, IL4, and GSDMB, have been linked to asthma. These genes affect airway function, inflammation, and immune response, increasing susceptibility to asthma symptoms.

3. Can asthma be inherited from parents?
Yes, asthma can run in families. If one parent has asthma, the child’s risk increases, and if both parents have asthma, the likelihood of developing asthma is significantly higher.

4. What role do environmental factors play in asthma?
Environmental factors like allergens, air pollution, respiratory infections, and secondhand smoke can trigger or worsen asthma symptoms, especially in individuals with a genetic predisposition.

5. What is the role of epigenetics in asthma?
Epigenetics studies how environmental factors like smoking and pollution can alter the expression of asthma-related genes without changing the DNA sequence, potentially influencing asthma development and severity.

6. Can a genetic test predict asthma?
Currently, no single genetic test can predict asthma. However, ongoing research may soon identify genetic markers that, combined with environmental profiling, can help assess asthma risk.

7. Is there a difference in asthma inheritance between children and adults?
While asthma often begins in childhood, adult-onset asthma can also occur, influenced by a combination of genetic predisposition and environmental factors, such as smoking or occupational exposures.

8. Why choose Sahyadri Hospital for asthma care?
Sahyadri Hospital offers advanced diagnostics, personalised treatment plans, pulmonary rehabilitation, and allergy management, ensuring comprehensive care tailored to each patient’s genetic and environmental factors.

    Book Appointment

    For a quick response to all your queries, do call us.
    Emergency/Ambulance
    +91-88888 22222
    Emergency/Ambulance
    +91-88062 52525
    Call Now: 88888 22222