London, April 4: Regular intake of coffee or caffeine by patients with Alzheimer's disease may deteriorate their neuropsychiatric symptoms, including but not limited to anxiety, say researchers.
While it is well known that memory problems are the hallmarks of Alzheimer's disease, this dementia is also characterized by neuropsychiatric symptoms such as anxiety, apathy, depression, hallucinations, paranoid, sundowning and more known as Behavioral and Psychological Symptoms of Dementia (BPSD) which may be strongly present already in the first stages of the disorder.
The results indicate that caffeine worsened these symptoms in mice with Alzheimer's.
The researchers also discovered significant effects, especially in relation to neophobia -- a fear of everything new -- anxiety-related behaviours, and emotional and cognitive flexibility.
"The mice develop Alzheimer's disease in a very close manner to the human patients with early-onset form of the disease," said lead author Raquel Baeta-Corral from the Autonomous University of Barcelona in Spain.
"They not only exhibit the typical cognitive problems but also a number of Behavioural and Psychological Symptoms of Dementia (BPSD)-like symptoms, so it is a valuable model to address whether the benefits of caffeine will be able to compensate its putative negative effects."
For the study, the team analyzed the effect of caffeine on normal ageing mice and familial Alzheimer’s models.
However, coffee has also been suggested as a strategy to prevent dementia, both in patients with Alzheimer's disease and in normal ageing processes, due to its action in blocking molecules - adenosine receptors - which may cause dysfunctions and diseases in old age.
But "our observations of adverse caffeine effects in an Alzheimer's disease model together with previous clinical observations suggest that an exacerbation of BPSD-like symptoms may partly interfere with the beneficial cognitive effects of caffeine", the researchers said.
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London, Nov 22: A bomb disposal squad deployed as a “precaution” to the South Terminal of Gatwick Airport concluded an investigation into a "security incident" on Friday after making a “suspect package” safe.
The South Terminal of Gatwick Airport, the UK's second busiest airport after Heathrow, which was briefly shut owing to the incident reopened following the incident.
The Gatwick is around 45 km south of London.
Two people detained during the enquiries have since been allowed to continue their journey as the airport was opened.
“Police have concluded their investigation into a report of a suspect package at Gatwick Airport. Officers from the EOD (Explosive Ordnance Disposal) team made the package safe, and the airport has been handed back to its operator,” Sussex Police said in an updated statement.
“Two people detained while enquiries were ongoing have subsequently been allowed to continue their journeys. There will remain an increased police presence in the area to assist with passengers accessing the South Terminal for onward travel,” the statement added.
Earlier on Friday, the incident caused severe disruption at the busy airport’s South Terminal, while the North Terminal of Gatwick Airport remained unaffected.
“Police were called to the South Terminal at Gatwick Airport at 8.20 am on Friday (November 22) following the discovery of a suspected prohibited item in luggage,” a Sussex Police statement said.
“To ensure the safety of the public, staff and other airport users, a security cordon has been put in place whilst the matter is dealt with. As a precaution, an EOD (Explosive Ordnance Disposal) team is being deployed to the airport. This is causing significant disruption and some roads around the South Terminal have been closed. We’d advise the public to avoid the area where possible,” it said.
Footage on social media taken outside the airport showed crowds of frustrated travellers being moved away from the terminal building.
Gatwick said it was working hard to resolve the issue.
“A large part of the South Terminal has been evacuated as a precaution while we continue to investigate a security incident," the airport said in a social media post.
“Passengers will not be able to enter the South Terminal while this is ongoing. The safety and security of our passengers and staff remain our top priority. We are working hard to resolve the issue as quickly as possible.”
Train and bus services that serve the airport were also impacted while the police carried out their inquiries.
In an unrelated incident in south London on Friday morning, the US Embassy area in Nine Elms by the River Thames was the scene of a controlled explosion by Scotland Yard dealing with what they believe may have been a “hoax device”.
“We can confirm the 'loud bang' reported in the area a short time ago was a controlled explosion carried out by officers,” the Metropolitan Police said in a post on X.
“Initial indications are that the item was a hoax device. An investigation will now follow. Some cordons will remain in place for the time being but the majority of the police response will now be stood down,” it added.