November 6, 2024

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Indian population sees 30 per cent rise in antinuclear antibody positivity following-COVID-19 infection, ET HealthWorld

Indian population sees 30 per cent rise in antinuclear antibody positivity following-COVID-19 infection, ET HealthWorld

Mumbai: Metropolis Healthcare Limited to raise awareness about chronic health issues is focused on educating the masses about the long-term health impacts of COVID-19, particularly concerning autoimmune diseases.

A recent study conducted by Metropolis, published in the International Journal of Clinical Biochemistry and Research, analysed data from over 1.2 lakh cases, comparing two critical periods—2019 (pre-COVID) and 2022 (post-COVID). The findings revealed a striking 30 per cent increase in the prevalence of antinuclear antibody (ANA) positivity in the Indian population, indicating how the immune system may, in some cases, turn against the body’s own tissues following a COVID-19 infection.

Antinuclear antibodies (ANA) are proteins produced by the immune system that mistakenly target the body’s own cells. While the immune system typically protects against infections, ANA positivity can lead to tissue damage and result in autoimmune diseases. Conditions such as rheumatoid arthritis, lupus, and thyroid disorders are often associated with ANA positivity and can cause symptoms like inflammation, joint pain, and fatigue. The presence of ANA serves as a key marker for healthcare professionals in diagnosing and monitoring autoimmune disorders.

The prevalence of ANA positivity substantially increased post-COVID. In 2019, the total ANA-positive cases stood at 39.3 per cent, while in 2022, it surged to 69.6 per cent. Females were found to have more positivity compared to males; however, this trend was similar to pre-COVID. The highest rate of ANA positivity was observed in individuals aged 31-45 years, followed by those aged 46-60 years. Individuals over 60 years consistently maintained high positivity rates in both the pre- and post-COVID periods. There was a notable 9 per cent increase in the nuclear homogeneous pattern, often linked to systemic lupus erythematosus (SLE) and rheumatoid arthritis, in 2022 compared to 2019.

Commenting on the study, Dr Alap Christy, Vice President & Scientific Business Head – Clinical Chemistry, Global Reference Laboratory, Metropolis Healthcare Limited, said, “The sharp rise in ANA positivity post-COVID is linked to the immune system’s intensified response to the virus. In some cases, this heightened immune activity causes the body to mistakenly attack its own tissues, triggering or worsening autoimmune diseases. Clinicians have increasingly observed a surge in autoimmune conditions following the pandemic, with research indicating that the body’s immune response to COVID-19 may be a key factor. Our findings emphasise the critical importance of early detection, especially for women and older adults, who are at a higher risk.”Dr Kirti Chadha, Chief Science and Innovation Officer, Metropolis Healthcare Limited, said, “The COVID-19 pandemic has left a lasting impact on global health, and our study shows that its effects extend beyond the virus itself. The rise in autoimmune disorders is alarming, but it also presents an opportunity to enhancing our diagnostic capabilities. By identifying these conditions early, we can help patients manage their health more effectively.”

The antinuclear antibody (ANA) test is recognised as one of the gold standard screening tools for diagnosing autoimmune diseases. However, ANA is just the starting point—once positive, it can be followed by a range of advanced tests such as ELISA and ImmunoBlot to confirm the diagnosis and understand the specific autoimmune condition.

As healthcare systems continue to grapple with the long-term effects of COVID-19, Metropolis Healthcare urges individuals to remain vigilant about their health. Regular screenings coupled with lifestyle measures such as maintaining a balanced diet, exercising regularly, managing stress, and ensuring adequaxte sleep, can help mitigate the risks of immune dysregulation.

  • Published On Oct 21, 2024 at 04:39 PM IST

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