Image Credits: Canva
Heart attacks and strokes are among the leading causes of death globally, with millions suffering from cardiovascular diseases (CVD) every year. There are more than seven million people in the UK alone, with about 100,000 patients experiencing heart attacks annually. However, a group of researchers at University College London (UCL) estimate that one 'polypill' taken daily day could eliminate a majority of these cases dramatically lowering death tolls.
The proposed polypill, a combination of a statin and three blood pressure-lowering drugs, has been under study for over two decades. Experts argue that introducing this pill universally for individuals aged 50 and above could be more effective than the current NHS Health Check, which assesses risk factors every five years for those aged between 40 and 74.
Studies have repeatedly proven the effectiveness of the polypill in preventing CVD. A groundbreaking 2019 study in The Lancet found that five years' use of the polypill cut the risk of heart attack and stroke by a third. In addition, previous modelling analyses have estimated that if given universally to people over 55, the polypill might be able to prevent 80% of heart attacks and strokes.
Today, the NHS Health Check follows a risk-based model in which patients are tested for CVD risk factors and treated with drugs accordingly. Yet, as per UCL's study, this system has serious flaws:
Low Uptake: Just 40% of those eligible for the NHS Health Check choose to have it, leaving a considerable number of at-risk patients undiagnosed and untreated.
Ineffective Prediction of Risk: The majority of heart attacks and strokes happen to people at average risk levels, thus making it challenging to identify the need for intervention effectively.
Limited Effectiveness: Even at maximum take-up, the NHS Health Check programme is predicted to have fewer health impacts compared to a polypill initiative applied to the whole population.
One of the big benefits of the polypill is that it is so easy. In contrast to the existing screening-based model, the polypill scheme would not involve complicated medical tests or lengthy risk assessments. Instead, people reaching 50 would just have to fill out a few questions to determine possible side effects before they were prescribed.
Professor Aroon Hingorani of the UCL Institute of Cardiovascular Science, one of the strongest proponents of this scheme, says:
"Finally, the time is now to do much better on prevention. A population approach would prevent a lot more heart attacks and strokes than is done today with a strategy of trying to target a smaller group only."
Aside from the possible health implications, the polypill is also an economic solution. The drugs used are off-patent, thus cheap to produce and distribute. With the vast economic cost of managing CVD-related illnesses, a preventive model could result in substantial cost-saving for the NHS in the future.
The polypill has been proven to be effective by numerous international trials. In 2019, a randomised trial in rural Iran discovered that participants who took the polypill for five years had a 34% reduced risk of having a heart attack or stroke compared to non-participants.
Likewise, modelling research has indicated that even if only 8% of people aged over 50 took up the polypill regimen, it would still be more beneficial to their health than the NHS Health Check programme.
One of the main objections to the polypill strategy is the suggestion that it might result in the unnecessary medicalisation of a significant proportion of the population. But, it is argued, it should be considered as a preventative measure, not as mass medication.
Professor Sir Nicholas Wald of UCL's Institute of Health Informatics explains:
"Instead of being a 'medicalisation' of a significant proportion of the population, a polypill programme is a prevention measure to prevent an individual from becoming a patient."
He compares it with public health measures like water fluoridation or compulsory seatbelts—interventions that have been shown to have a significant impact in reducing public health danger at low individual cost.
With the evidence in favour of the polypill's effectiveness and viability overwhelming, experts are calling on the NHS to act now. It is their belief that substituting the NHS Health Check with a polypill-based prevention program could be the UK government's flagship policy under its pledge to put disease prevention ahead of cure.
As Professor Hingorani points out, "The status quo is not a justifiable option." With CVD still a major cause of death globally, taking a population-wide polypill approach could be a turning point for preventative medicine, potentially saving thousands of lives annually. The question now is whether the NHS will take up this call and establish a policy with the potential to transform the prevention of cardiovascular disease on a national level.
Credit: AI-generated image
Researchers at a Florida-based university claim that a tiny marine animal found in Antarctica can help scientists develop a new treatment for melanoma, one of the deadliest forms of skin cancer. These marine animals are ascidians, invertebrates known as sea squirts. Belonging to the group of tunicates, they mostly thrive in icy water.
Certain species of marine animals have proven to be useful in the treatment of various types of cancer. The latest ones are ascidians or sea squirts.
Researchers from the University of South Florida (USF) claim that sea squirts, small tube-shaped marine animals that produce protective chemicals, can help fight an aggressive form of skin cancer called melanoma.
Scientists say that these sea squirts have a bacterium that makes a toxic compound. In the early stages of the study, it was found that this compound is capable of killing melanoma cells without harming healthy cells.
Also read: Frequent Headaches: When To See A Doctor And Warning Signs To Watch For
One of the biggest challenges in cancer treatment is finding drugs that destroy cancer cells while leaving healthy cells unharmed. With this study, scientists say this compound produced by the bacteria inside Antarctic sea squirts can do exactly that, marking a significant milestone in cancer research.
In experiments conducted on mice, it was seen that the compound killed melanoma cells without causing serious harm to the rodents, making it a promising candidate for future drug development.
Even though it shows immense promise, the research is still in its early stages. Before the compound can be tested in people, scientists need to confirm that it is safe and effective in larger animal studies. Clinical trials on humans may still take a while.
Also read: How Reconstructive Plastic Surgery Transforms Lives After Trauma And Cancer
There is also a challenge of harvesting large numbers of sea squirts from Antarctica, as it would damage the fragile ecosystem. To avoid that, researchers are now working on creating the compound in the laboratory instead.
Despite encouraging results, it remains an experimental approach, and several years of research and clinical testing will be needed before it can become a trusted and proven therapy for melanoma.
Ecteinascidia turbinata, a colonial marine invertebrate, commonly called the golden sea squirt, has contributed to the development of Trabectedin, a chemotherapy drug, used to treat soft tissue sarcoma and ovarian cancer.
One of the significant cancer breakthroughs was due to sea sponges. They led to the development of Cytarabine, a chemotherapy medication that has been significant in the treatment of acute myeloid leukemia, acute lymphoblastic leukemia, and certain lymphomas for decades.
Sea cucumbers contain natural substances that can slow the growth and spread of cancer cells. Although research is still in its early stages, the results have been promising.
Researchers also found a powerful anti-cancer compound called dolastatin in sea hares. It inspired targeted cancer drugs that deliver treatment directly to cancer cells while reducing harm to healthy cells.
Credit: iStock
For the first time, starting July 1, people in the US will be able to access GLP-1 drugs for weight loss through a new pilot program offered by the federal health insurance program Medicare.
Until now, Medicare covered GLP-1 medications such as Ozempic only for certain conditions like diabetes, but not for weight loss.
The new 18-month Medicare GLP-1 Bridge Program, which will run till the end of 2027, aims to make these high-cost weight-loss medications more accessible to eligible beneficiaries.
According to a KFF analysis of 2023 Part D enrollment data, an estimated 3.8 million Medicare beneficiaries could qualify for the program.
More than 70 per cent of adults in the United States are considered to have obesity or screen as overweight. Studies have proven that GLP-1s are an effective tool in weight reduction, as well as improving other markers of good health, such as blood pressure, lipid profiles, and blood sugar levels.
Eligible beneficiaries will be able to access the following GLP-1 weight-loss medications:
The medications will be covered only when prescribed for weight management and when beneficiaries meet the program's medical eligibility criteria.
The program is available only to certain members of Medicare Part D prescription drug plans who want to lose excess weight and maintain weight loss.
Although the program operates outside standard Medicare Part D coverage, beneficiaries can participate only if they are enrolled in:
People enrolled in certain less common Medicare plans, including the Program of All-inclusive Care for the Elderly (PACE), may also qualify if they also have a stand-alone Part D plan, Washington Post reported.
According to the Centers for Medicare & Medicaid Services (CMS), most of Medicare's approximately 57 million Part D enrollees are in eligible plans.
However, coverage is not automatic. Providers and pharmacists will identify eligible patients, submit the required forms and obtain prior authorization before treatment can begin. Claims, prior authorization requests and pharmacy payments will be handled by Humana, while Part D plans will not be involved in the process.
Eligible beneficiaries will pay a $50 monthly copay for the covered medications.
However, because the program operates outside Medicare Part D coverage:
The pilot program is temporary and is scheduled to end in December 2027, unless it is extended.
"It's certainly good news for Medicare beneficiaries who have been essentially shut out of the market for GLP-1s for weight loss if they wanted to use insurance coverage. However, it is a temporary program. It is not a permanent change in Medicare coverage," said Juliette Cubanski, Vice President and Director of Medicare Policy at KFF.
If the program is not extended, beneficiaries who rely on the medications may have to pay higher out-of-pocket prices or discontinue treatment beginning in January 2028, which experts said could lead to weight regain based on current GLP-1 therapies, the Post reported.
Credit: AI-generated image
A recent study has found that a modified form of vitamin B12 therapy may prove to be a new and promising way to treat glioblastoma, one of the most aggressive forms of brain cancer.
With limited treatment options, patients are usually treated with surgery, radiation therapy, and chemotherapy. Usually, the chance of survival is not bright after diagnosis.
Published in the journal Oncoscience, the research study is based on nitrosylcobalamin (NO-Cbl), a vitamin B12-based compound that contains and slowly releases nitric oxide.
The main purpose of the study was to find out whether the vitamin B-12 compound could cross the blood-brain barrier, a protective layer that prevents many medicines from reaching the brain and directly targeting glioblastoma tumors.
The blood-brain barrier is one of the biggest challenges in treating glioblastoma, as it protects the brain from harmful substances, blocking many cancer drugs from reaching tumor tissue.
Also read: Ebola Outbreak Spreads To Fourth Province In DR Congo As Cases Rise To 1,274
The researchers examined how NO-Cbl affected different types of cancer cells, particularly how it moved through the body of rats with glioblastoma. The results showed that NO-Cbl had an anti-cancer effect on several types of tumors.
Most importantly, the compound was able to cross the blood-brain barrier and accumulate inside glioblastoma tumors in animal studies.
Researchers also found that the compound remained active in tumor tissue for at least 24 hours, delivering nitric oxide directly to cancer cells without affecting normal tissues.
They also tested NO-Cbl in combination with two existing glioblastoma treatments: temozolomide, the standard chemotherapy drug for the disease, and TRAIL, an experimental cancer therapy.
In laboratory-grown glioblastoma cells, the combinations alleviated cancer cell growth much more effectively than any of the treatments used on their own.
Also read: Cholera Outbreak In Sudan: 117 Dead, 838 Suspected Cases, Says WHO
A glioblastoma is a fast-growing glioma, a type of tumor that stems from glial cells, which protect nerve cells in the brain and spinal cord.
Glioblastoma can occur at any age but is more commonly found in older adults. The average age at diagnosis is 64.
Public figures among those afflicted include former President Joe Biden's son, Beau Biden, who succumbed to this cancer in 2015. John McCain also passed away in 2018 due to glioblastoma.
According to the MD Anderson Cancer Center, around 12,000 glioblastoma cases are diagnosed in the United States every year. All glioblastomas are grade IV brain tumors, meaning they contain the most abnormal looking cells and are the most aggressive.
About 13,000 Americans are diagnosed with glioblastoma each year, accounting for almost half of all cancerous brain tumors, according to the Cleveland Clinic. More than 10,000 people in the U.S. will succumb to the disease every year, the National Brain Tumor Society reports.
In the light of limited treatment options for glioblastoma, this study is a ray of hope as it shows promise in slowing down the growth of cancer cells by overcoming challenges like treatment resistance.
© 2024 Bennett, Coleman & Company Limited