Is 'Sticky Gunk' In Your Brain The Reason Behind Alzheimer's Disease?

Updated Mar 20, 2025 | 08:53 AM IST

SummaryThe new findings is based on a subset of 22 participants who received amyloid-removing drugs the longest, on average eight years.
Alzheimer's Disease

Credits: Canva

An experimental treatment happens to be the solution to delay Alzheimer's symptoms in some people. These people are the ones who are genetically destined to get the disease in their 40s or 50s. These new findings form ongoing research has now been caught up in Trump administration funding delas. The early results of the study has been published on Wednesday and the participants too are worried that politics could cut their access to a possible lifeline.

One of the participants had said, "It is still a study but it has given me an extension to my life that I never banked on having." The participant is named Jake Henrichs, form New York City, who is 50 years old. He is one of them to be treated in that study for more than a decade now and has remained symptom-free despite inheriting an Alzheimer's-causing gene that had killed his father and brother around the same age.

Slowing Down The Symptoms

Two drugs which can modestly slow down early-stage Alzheimer's are sold in the United States. These drugs clear the brain of one of its hallmarks, a sticky gunk-like part called the amyloid. However, there have not been any hints that removing amyloid far earlier, way many years before the first symptoms appear, may postpone the disease.

How Was The Research Conducted?

The research is led by Washington University in St Louis, which involved families that passed down rare gene mutation as participants. This meant it was almost guaranteed that they will develop symptoms at the same age their affected relatives did.

The new findings is based on a subset of 22 participants who received amyloid-removing drugs the longest, on average eight years. Long-term amyloid removal cut in half their risk of symptom onset. The study is published in the journal Lancet Neurology.

Washington University's Dr Randall Bateman, who directs the Dominantly Inherited Alzheimer's Network of studies involving families with these rare genes says, "What we want to determine over the next five years is how strong is the protection. Will they ever get the symptoms of Alzheimer’s disease if we keep treating them?”

The researchers before though did not know what exactly caused Alzheimer's which affects nearly 7 million Americans, most of them in their later life. However, it is clear that these silent changes occur in the brain at least two decades before the first symptom shows up. The big contributor. At some point amyloid buildup can trigger a protein named tau that then starts to kill neurons, which can lead to cognitive decline.

Researchers are now thus studying the Tau-fighting drugs and are looking into other factors, like inflammation, brain's immune cells and certain virus.

The National Institute of Health (NIH) has expanded its focus as researchers have found more reasons for Alzheimer's. In 2013, the NIH's National Institute on Aging funded 14 trials of possible Alzheimer's drugs over a third targeting amyloid. By last fall, there were 68 drugs and 18% of them target amyloid. However, there are scientists too who think that amyloid is not everything and their is way more in the brain tissue, immune cells, and more which can be studied.

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Eye Drops: US FDA Recalls Over 3 Million Products Over Safety Concerns

Updated Apr 4, 2026 | 07:10 AM IST

SummaryThe FDA, in its Enforcement Reports, stated that the eye drop products were recalled due to “lack of assurance of sterility.” The FDA notice classified the action as a “Class II recall" over risks that the products can cause “temporary or medically reversible” health problems.
Eye Drops: US FDA Recalls Over 3 Million Products Over Safety Concerns

Credit: Canva

The US Food and Drug Administration has recalled over three million eye drops in the country over safety concerns.

The 3,111,072 products were manufactured by California-based K C Pharmaceuticals and were sold under names such as “Dry Eye Relief Eye Drops,” “Sterile Eye Drops,” and “Artificial Tears Sterile Lubricant Eye Drops,” according to the FDA notice.

K C Pharmaceuticals made the voluntary recall of the eye drops in early March.

The eight types of eye drop products were sold at major retailers, including CVS, Walgreens, and Rite Aid. They have expiration dates ranging from April to October.

Eye Drops: Why Are These Recalled? What Did The US FDA Say

The FDA, in its Enforcement Reports, stated that the products recalled “lack of assurance of sterility.”

While so far, there are no reports of injuries associated with the eye drops, the FDA notice classified the action as a “Class II recall.”

Class II recalls apply to products that can cause “temporary or medically reversible” health problems.

As per the FDA, "the probability of a serious health issue is remote," over these products, and that is why the recall is categorized as a Class II, USA TODAY reported

"Patients and consumers can continue using the medicine unless otherwise directed by the recalling company or FDA," the regulator said in a statement to the publication.

Also read: Can 'Eye Strain' Lead To Brain Cancer? Experts Explain

Which Eye Drops Have Been Recalled?

NBC News reported that the recalled products include:

  1. Sterile Eye Drops AC (tetrahydrozoline HCl 0.05%, zinc sulfate 0.25%), 0.5 fl oz (15 mL) bottles
  2. EYE DROPS Advanced Relief, (dextran 70 0.1%, polyethylene glycol 400 1%, and tetrahydrozoline HCl 0.05%), 0.5 fl oz (15 mL) bottles
  3. Dry Eye Relief Eye Drops (glycerin 0.2%, hypromellose 0.2%, and polyethylene glycol 400 1%) 0.5 fl oz (15 mL) bottles
  4. Ultra Lubricating Eye Drops (polyethylene 400 0.4%, propylene glycol 0.3%), Sterile, 0.5 fl oz (15mL) bottles
  5. Sterile Eye Drops Original Formula (tetrahydrozoline HCl 0.05%), 0.5 fl oz (15mL) bottles.
  6. Sterile Eye Drops Redness Lubricant (glycerin 0.25% and naphazoline HCl 0.012%), 0.5 fl oz (15 mL) bottles
  7. Sterile Eye Drops Soothing Tears (polyethylene glycol 400 0.4% and propylene glycol 0.3%), 0.5 OZ 0.5 fl oz (15 mL) bottles.
  8. Artificial Tears Sterile Lubricant Eye Drops (polyvinyl alcohol 0.5%, povidone 0.6%), 0.5 fl oz (15 mL) bottles.

Here’s What You Can Do Instead?

Also read: Struggling With Dry Eyes? Study Reveals Surprising Treatment- Tips To Prevent This Disease

The key to ensuring that your eyes are protected from environmental factors like the sun, dust, and dirt, especially for those who work outdoors or spend long hours on screen, is investing in good sunglasses with ultraviolet protection.

"For those who are using computers a lot, you need to blink your eyes constantly, take breaks in between, and drink a lot of water. Dehydration is also a contributing factor to dry eye," Dr Anita Sethi, who is Principal Director and HOD Ophthalmology, Max Multi Specialty Centre at Panchsheel Park.

She also recommends using zero-number protective glasses and computer glasses that can decrease strain and dry eye.

While advising people to stay away from natural remedies like turmeric or ginger put inside the eye, Dr Sethi urged people to consume more “foods rich in vitamin E, antioxidants” to maintain eye health.

“Colored vegetables and fruits, and even maintaining thyroid and vitamin D levels, because these also contribute to dry eye,” the ophthalmologist said.

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Scientists Link Vaping to 2 Types of Cancer; DNA-Damaging Chemicals to Blame

Updated Apr 4, 2026 | 07:00 AM IST

SummaryVaping is considered comparatively safer than cigarette smoking. However, the long-term risks involved are much worse—scientists say that this habit could give you two types of cancer and even damage DNA.
Vaping

Vape pens have chemicals that can damage DNA. (Photo credit: iStock)

Smokers turn to vaping thinking that it is cooler and more convenient. Little do they realise that this seemingly convenient act could cause long-term damage, most of it irreversible. Scientists now fear that vaping could be linked to not one, but two forms of cancer. E-cigarettes can trigger lung and mouth cancer, and this is a consequence of the DNA-damaging chemicals found in vapes. Researchers at the University of New South Wales in Sydney came to this conclusion after reviewing studies on mice that developed lung tumours after being exposed to aerosol. Reports also suggest that heavy smokers are more prone to mouth cancer.

Why are vaping pens linked to cancer?

Vapour from pens has a relatively better fragrance compared to conventional cigarettes, as these pens are flavoured. However, researchers say that these pens contain chemicals that can cause cancer, damage DNA, and lead to tissue inflammation. Researchers also say that e-cigarettes contain nicotine, which is likely to trigger lung and mouth cancer. However, the extent of this effect in humans is still unknown.

Read more: Parents Who Smoke May Be Passing Severe Lung Disease Risk To Their Children

Lead researchers of the study said that they would only be able to determine the precise risk once long-term studies are available. Contrary to popular belief, while many believe that vaping is far safer than smoking, the study’s findings act as a warning for all those who use a vape but have not smoked a cigarette in their life. Experts at the University of Sydney noted that vaping is a safer alternative to smoking for smokers. However, the research has drawn criticism for being “problematic” and “misleading”.

Experts at University College London said that no one would argue that e-cigarettes are completely risk-free. Rather, they said, vapes should be used as a harm-reduction tool to help smokers quit the habit, thereby reducing their risk of chronic and acute health problems, such as heart disease. The review, however, does not give a free pass to use e-cigarettes. It issues a warning against the use of vapes, citing risks of lung and oral cancer. At a time when vape use has increased suddenly, overtaking the popularity of smoking, research is necessary to discourage people, especially youngsters, from adopting the habit in the first place.

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Cancer Is The 10th Leading Cause Of Death In Indian Children: Study

Updated Apr 3, 2026 | 02:59 PM IST

SummaryIn rural areas in India, cancer diagnosis is often delayed because of lack of proper healthcare infrastructure. And even if the treatment is subsidised, there are several indirect expenses that add to the final cost.
Childhood cancer

Leukaemia is one of the most common forms of childhood cancer. (Photo credit: iStock)

Cancer, a rare occurrence? Unfortunately, not anymore. According to recent findings from an analysis published in The Lancet, cancer is one of the top 10 causes of death among Indian children. This is an alarming statistic, signalling an under-recognised public health problem. Data in the Global Burden of Disease Study 2023 noted that even as infectious diseases decline, noncommunicable diseases like cancer are emerging as a serious threat to child survival and well-being. In India, this epidemiological shift is particularly concerning in the context of childhood cancers. Despite being rare, they are highly treatable when detected in the early stages—yet most cases are diagnosed late.

As per the Indian Council of Medical Research’s National Centre for Disease Informatics and Research (ICMR-NCDIR), childhood cancers accounted for 3–5 per cent of cancer cases reported in India in 2022. The country sees an estimated 50,000 to 60,000 cases every year among children aged 0–14 years. This makes it one of the highest burdens globally. In 2023, 377,000 cases of childhood cancer were reported globally, along with 144,000 deaths, according to The Lancet research paper.

Read more: 3 Children In Every 4 Minutes Are Diagnosed With Cancer, That's What Makes Awareness Important Says Doctor

Hidden cancer burden in India

When it comes to childhood cancers in India, leukaemia, or blood cancers, are the most common, followed by lymphomas and tumours of the central nervous system. Collectively, these categories comprise most cases of childhood cancers in the country. The statistics vary across regions, with Delhi reporting the highest number of cases due to better diagnostic facilities. However, experts believe that the actual burden is likely to be much higher. Incomplete cancer registration and limited access to proper diagnostic facilities in underserved and rural areas are to blame for delayed diagnosis.

Why is childhood cancer detected late in India?

Experts say that cancer deaths in India can largely be attributed to delayed diagnosis. Early symptoms of cancer in children include fatigue, fever, unexplained weight loss, and swelling in certain body parts. These symptoms are often overlooked, leading to delays at multiple levels. According to the ICMR 2022 factsheet, a significant proportion of children reach hospitals only at advanced stages of the disease. By then, treatment becomes more complex, more expensive, and less likely to succeed.

Access to cancer care for children

Access to cancer care for children is uneven in India. Paediatric oncology services are largely limited to hospitals in tier-one cities, forcing families from rural areas and smaller towns to travel in order to access proper treatment. This imbalance results in delayed care, especially for economically vulnerable families. Financial limitations are another barrier in the process—even if treatment costs are subsidised, expenses such as travel, accommodation, and loss of income can be overwhelming.

Read more: 41 million children aged 5-19 living with high BMI in India: Study

Irregular survival patterns

Globally, survival rates for childhood cancers exceed 80 per cent in high-income countries. In India, outcomes are uneven. The ICMR 2022 factsheet noted that survival depends on the stage of diagnosis, type of cancer, and where the child is treated. Hospitals in India are reporting improving survival rates for certain forms of cancer, such as acute lymphoblastic leukaemia. The ICMR factsheet also highlights the need for a dedicated approach to paediatric cancer care, including better infrastructure, trained doctors, and stronger referral systems.

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