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.
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.
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.
Credit: WHO
The six-week-long incubation period of Hantavirus is a matter of concern, but the rat-borne disease is certainly not a large epidemic, said the World Health Organization today.
At a media briefing, the WHO Director General Dr Tedros Adhanom Ghebreyesus, expressed concerns about the time taken for the symptoms of the disease to appear.
He noted that so far the disease has been limited to the 150 people who traveled on board the MV Hondius ship. Of these, only 8 people have been infected - 3 have died, and 5 have been confirmed.
A case has been reported in a person who disembarked from the ship, without having the symptoms, and some have self-isolated to prevent the risk of spreading.
Among those on board the ship, now travelling to the Canary Islands, "currently no one is symptomatic".
However, "with a six-week incubation period, more cases are expected to be reported".
Countries involved in the contact tracing efforts of people who disembarked at St. Helena Islands include Canada, the Netherlands, Singapore, Turkey, the UK, and the US, the WHO chief said.
WHO infectious disease epidemiologist Maria Van Kerkhove reiterated that the disease spreads only among close, prolonged contacts or those providing care, as seen in the case of the doctor who got infected on board.
The WHO also noted that the disease is unlikely to become a large epidemic, as it's an isolated case occurring in a closed environment. However, public health measures like contact tracing and testing are key to preventing any further spread.
According to the WHO, the outbreak of the rat-borne disease among people aboard the MV Hondius ship after it left Argentina on April 1 was caused by the Andes strain.
Speaking to HealthandMe, Dr. Gautam Menon, Epidemiologist and Professor of Physics and Biology, Ashoka University, Delhi-NCR, said that the long incubation period is likely to complicate the spread of the hantavirus.
"What complicates matters is that incubation periods - the time between getting infected and symptoms showing - are large, up to several weeks, so passengers and their contacts will have to be quarantined for a long period before they can be declared safe." The expert said.
Ven Kerkhove said that hantavirus causes severe respiratory issues, but it is still not the same as SARS-CoV-2.
This is not a new virus and is completely different from SARS-COV-2. It has caused similar outbreaks in Argentina in 2018, where contact tracing and other public health measures contained the spread.
"The outbreak of Hantavirus on a cruise ship has generated significant anxiety around the world, evoking memories of cruise ships affected by COVID-19 in the first phase of the pandemic. However, this is a different virus that is not known to spread efficiently from person to person. Its characteristics are already well-documented, unlike the SARS-CoV-2 virus, which was an unknown organism until then," Dr. Rajeev Jayadevan, Ex-President of IMA Cochin and Convener of the Research Cell, Kerala, told HealthandMe.
"The current cases do not indicate a pandemic threat, but they underline the growing importance of surveillance of zoonotic diseases. Strengthening rodent control, environmental hygiene, and early detection systems remains essential to prevent localized outbreaks and public panic. There is neither a proven treatment for its cure nor is there any vaccine," added Dr.Ishwar Gilada, Mumbai-based infectious disease expert.
Hantavirus infection is caused by the hantavirus, which belongs to the Hantaviridae family. It is is rare but can be life-threatening.
The infection presents with initial symptoms resembling the flu and has a relatively high mortality of about 40%.
Even though this virus is not believed to spread very efficiently, it would have done so far more easily in the enclosed environment that the ship provided, the experts said.
Dr Neha Rastogi, Senior Consultant, Infectious Diseases, Fortis Memorial Research Institute, Gurugram, told HealthandMe that it can be contracted by coming into contact with rodent saliva, urine, and feces.
Hantavirus can cause infection - 2 syndromes: hantavirus pulmonary syndrome and haemorrhagic fever that may quickly develop into severe respiratory illness, as flu-like symptoms (fever, muscle aches, and fatigue) occur before developing serious respiratory symptoms (dyspnea) that may require respiratory assistance.
"On rare occasions, it can also spread from person to person through close contact. Rapid diagnosis and intensive medical treatment are critical for a successful outcome," Dr Rastogi said.
"Preventative measures include proper personal hygiene, avoiding contact with rodents or rodent-inhabited areas; using PPE when cleaning; and ensuring the area is well-ventilated," she added.
Although hantavirus infections can cause severe respiratory illness with high mortality, confirmed human cases globally remain relatively uncommon, Dr Gilada told HealthandMe
"The pneumonia syndrome caused by the virus is due to excessive permeability of blood vessels, resulting in fluid accumulation. It is managed with expert supportive care while the lungs recover, as there are currently no known antivirals or vaccines available for the Andes virus. By carefully tracking contacts and isolating those who might be infected, the virus can be stopped in its tracks, bringing this outbreak under control," Dr Jaydevan said.
Stress after work can give you a migraine severe enough to prevent you from sleeping. (Photo credit: AI generated)
Most people often wrap up their day at work with a sense of stress and severe exhaustion. But if you are part of the group that experiences severe headaches after office hours, it could be because of one common habit that may be causing you discomfort — chronic stress. When the mind keeps racing all day long because of deadlines, tension, and pressure, even during breaks, it leaves behind a sense of urgency. And that sense of urgency does not mitigate or come to an end when the day ends.
Several times, there are difficult or unpleasant situations at work — it could be because of unfinished tasks and conversations that play and replay in the mind. The nervous system, therefore, gets overburdened, thereby leading to headaches. According to doctors, a lot of corporate employees experience this pain after a day at their high-pressure jobs. And while it may sound like something that is out of your control, there is something that you can do.
Stress inherently is not bad for you, but only if it occurs in short bursts. In that case, it can improve performance, focus, and may even prepare the body to handle challenges. Problems, however, arise when stress becomes chronic. As a result, the nervous system starts to process both pain and stress at the same time, and while one is built to be highly adaptable, stress starts to respond to external and internal factors. When the brain continues to receive signals without getting ample time for recovery, the body enters a state of prolonged alertness.
In a sensitised state, situations that would otherwise be interpreted as minor may even get ignored. This can increase heart rate and muscle tension, thereby putting the nervous system into a fight-or-flight mode. In cases of constant headaches, sensitisation can lower the pain threshold. Consequently, headaches begin and become much harder to stop. Over time, this constant activation can disrupt the body's natural balance and create an environment for headaches to worsen.
Chronic stress acts as a trigger for migraines — it can even worsen the discomfort. The neurological system of people experiencing migraines is more responsive to changes in hormones, environmental factors, and sleep patterns. Constant exposure to a stressor, therefore, can drive the severity and frequency of migraines. To make matters worse, muscle tension in the shoulders, neck, and scalp can also trigger headaches. Extended periods of sustained concentration and sitting can cause headaches later in the day.
Chronic stress has a debilitating impact on sleep quality as well. People who feel persistently wired at the end of the workday struggle to fall or stay asleep. As a result, the brain fails to recover properly. Poor sleep can therefore worsen the stress cycle, leading to headaches the next day as well. The loop is difficult to break, and excessive fatigue building up over time can make you feel overwhelmed. Over time, this loop leads to a decline in productivity, focus, and the ability to solve problems.
Credit: Canva/AI generated
Public health officials in South Wales, UK, have issued an alert on a localized outbreak of hepatitis A, and have urged residents to maintain hygiene as well as vaccinate children.
Cases of hepatitis A involving the same strain have been identified in three separate households in Barry, according to Public Health Wales.
The health body, in a statement, said the strain’s characteristics “suggest the infection may be spreading locally.” Investigations into the “small number” of cases are ongoing.
To curb the outbreak, the officials have also issued an urgent appeal to parents to ensure their children remain “vigilant with their handwashing.”
Those infected are “receiving appropriate care and are recovering well,” Public Health Wales said. As a precaution, close contacts of the affected individuals have also been offered vaccination.
Hepatitis A is a viral liver infection caused by the hepatitis A virus (HAV). It spreads mainly through contaminated food or water, or through close personal contact with an infected person.
The infection can lead to liver inflammation, jaundice, extreme fatigue, and stomach pain. In most cases, it is a short-term illness that clears on its own without specific treatment, although severe cases can occur. Unlike hepatitis B or C, hepatitis A does not usually cause long-term liver damage.
According to the World Health Organization (WHO), vaccination remains the most effective way to prevent infection.
Also read: Hepatitis Infections Claims 1.3 Million Lives Worldwide, India Among Top Contributors: WHO
Symptoms usually appear a few weeks after exposure to the virus, although some people may not develop noticeable signs. According to the Cleveland Clinic, symptoms can include:
Read More: UK Parliament Bans Smoking For People Born After 2008: Know All About It
“The best way to prevent the spread of hepatitis A is to wash hands thoroughly with soap and water. This is important after using the toilet, changing nappies, and before preparing or eating food,” said Susan Mably, Consultant in Health Protection for Public Health Wales.
Vaccination against hepatitis A is also highly effective in preventing the disease.
Doctors recommend the vaccine for:
If someone in the household is infected, cleanliness becomes even more important. Surfaces should be disinfected, food prepared carefully, and personal items not shared.
Safe sexual practices also matter, as the virus can spread through oral-anal contact. On a broader level, preventing future outbreaks requires more than short-term fixes. Improving water quality, repairing sewage systems, and strengthening public health surveillance are essential to stop the cycle from repeating.
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