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Published on: Apr 06, 2020
2 minute read
By: Dr Rajan Choudhary

MicroRNA That Makes Them Fight COVID Better ?

Recently you may have read a New Delhi based International Center for Genetic Engineering and Biotechnology (ICGEB) sequenced the genome (genetic data) of SARS-COV-2 (coronavirus) from India, Italy, US, Nepal and Wuhan, China. They found that the Indian variant of SARS-CoV2 has the potential to be targeted by antiviral RNA within host cells, a feature that is unique to the Indian strain.

This amazing finding has been published on blogs, newspapers and other media as proof that Indians may not suffer as much as the rest of the world when the COVID-19 pandemic hits the country. One headline touted “MicroRNA in Indians may reduce severity of corona attack”, stating “Indians have comparatively better immunity compared to other countries”. Of course this article is being forwarded on WhatsApp, and enough people may take it as gospel. Is it true?

No.

If you want to know why, just look on the Journal’s website:

“these are preliminary reports that have not been peer-reviewed. They should NOT be regarded as conclusive, guide clinical practice/health-related behaviour, or be reported in news media as established information.”

Research is not easy. I could write a very long explanation for why, but I have summarised it below.

SUMMARY:

- To prove x causes y up to a high scientific standard is incredibly difficult

- Even if you think x causes y, someone might find a flaw in your study

- Numbers can be manipulated by statistics to show what you want to believe

- Reporters might not understand the study and mis-report it

- We all want to believe there is a magic cure that will protect us, that makes us special, immune to this disaster so we can get on with our lives. Unfortunately there simply isn’t one. And believing in them without fact checking can cause more harm than good.

IMMUNITY AGAINST COVID

So what about this study? Firstly it is looking at one tiny mechanism in a cell, when a cell can have millions of proteins responsible for a billion different functions in just the cell itself. Secondly it is not peer reviewed. This means no one has fact checked the study to check whether the design is valid, whether the statistics hold up, whether they have missed something or are making incorrect conclusions based off their data. Peer-reviewing a recent paper showing SARS-CoV-2 and HIV were extremely similar disproved this paper as false.

In the authors defence he acknowledges this:

“In our study, which is a purely computational one, we predicted that this microRNA binds to the SARS-Cov2 genome submitted from India. However, it is too early to comment on it because there is only one high coverage sequence from India, so far,”

Thirdly, the news article says that Indians have better immunity because of this “microRNA”. This is wrong. The study sequenced the genome of the virus, not of the Indian population. Antiviral microRNA is found in all people. The study simply suggests that this might be more effective at targeting the Indian strain of COVID, but it does not make any concrete claims that Indians are protected from COVID.

Again, the journal even states this:

“These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information.”

But most importantly, even if the paper suggests that the Indian strain may be less potent, it does not give us an excuse to be reckless. We have to adhere to social distancing, hygiene, lockdown principles in order to prevent infection. Because what happens if you take the article stating “Indians have comparatively better immunity compared to other countries” as fact, use this as an excuse to go about your regular daily lives, and it actually turns out that the microRNA has little to no effect on COVID. This endangers yourself and those around you.

Be sensible. Listen to public health officials.

Dr Rajan Choudhary, UK, Chief Product Officer, Second Medic Inc

www.secondmedic.com

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Hearing Loss Solutions for Elderly in India: Restoring Sound & Confidence

Introduction

Hearing loss is one of the most common health challenges faced by elderly people in India. According to estimates, nearly 1 in 3 Indians above the age of 60 experiences some degree of hearing difficulty. For many seniors, this leads to isolation, depression, communication barriers, and even increased risk of dementia. The good news? Modern science and technology offer multiple hearing loss solutions for elderly in India—from advanced hearing aids to cochlear implants and lifestyle support.

This blog explains the causes, solutions, diagnostic tests, and care tips for elderly hearing loss in India.

Why Hearing Loss Happens with Age

The medical term for age-related hearing loss is presbycusis. It happens gradually and affects both ears. Major reasons include:

Degeneration of inner ear cells with aging.
Long-term exposure to noise (machines, loud music, traffic).
Health conditions like diabetes, hypertension, thyroid disorders.
Side effects of medicines (ototoxic drugs).
Ear infections or wax buildup left untreated.

Symptoms of Hearing Loss in Seniors

Asking others to repeat frequently.
Turning up TV or phone volume unusually high.
Trouble following conversations in noisy places.
Difficulty hearing high-pitched sounds (like children’s voices).
Ringing in the ears (tinnitus).
Withdrawal from social interactions.

Best Hearing Loss Solutions in India

1. Hearing Aids

Modern hearing aids are smaller, digital, and rechargeable. They can be customized for mild to severe hearing loss. Some are nearly invisible, while others connect via Bluetooth to phones and TVs.

2. Cochlear Implants

For severe or profound hearing loss, cochlear implants bypass damaged inner ear structures and directly stimulate hearing nerves. India has many hospitals offering affordable implant surgeries compared to Western countries.

3. Assistive Listening Devices

Simple tools like TV amplifiers, alerting systems with lights/vibrations, and mobile apps improve communication at home.

4. Speech & Hearing Rehabilitation

Speech therapy and auditory training help seniors adapt to devices and regain confidence.

5. Lifestyle & Preventive Care

Regular ear check-ups.
Managing diabetes and hypertension.
Avoiding loud noise exposure.
Balanced diet with vitamins (especially B12, folate, zinc).

Diagnostic Tests for Hearing Loss

Audiologists and ENT specialists recommend:

Pure Tone Audiometry (PTA) – Standard hearing test.
Speech Audiometry – Measures speech clarity.
Tympanometry – Middle ear function.
Otoacoustic Emissions (OAE) – Inner ear function.
BERA Test – For neural pathway issues.

At SecondMedic and Thyrocare centers, seniors can also book complete health check-ups with ENT & vitamin profiles to check if underlying conditions are contributing.

Cost of Hearing Solutions in India

Basic Hearing Aids: ?15,000 – ?40,000
Digital & Rechargeable Hearing Aids: ?50,000 – ?1,50,000
Premium Invisible Aids / Bluetooth-enabled: ?2 – ?3 lakhs
Cochlear Implant Surgery: ?6 – ?12 lakhs (may vary by hospital)

Government schemes, NGOs, and CSR initiatives sometimes subsidize devices for senior citizens.

Role of Family Support

Hearing loss is not just a medical condition—it’s a social challenge. Families can help by:

Speaking clearly, slowly, and facing the senior.
Reducing background noise during conversations.
Encouraging regular check-ups and device use.
Providing emotional support to prevent isolation.

Conclusion & CTA

Hearing loss does not have to mean silence. With the right solutions—modern hearing aids, cochlear implants, rehabilitation therapies, and preventive care—elderly Indians can enjoy active, engaged lives.

If you or your loved one is experiencing hearing problems, book a complete hearing assessment with SecondMedic today. Early diagnosis and the right solution can restore not just sound, but also confidence and connection.

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