Politics
Medicine Nobel to trio who identified immune system’s ‘security guards’
A US-Japanese trio on Monday won the Nobel Prize in Medicine for research into how the immune system is kept in check by identifying its “security guards”, the Nobel jury said.
The discoveries by Mary E. Brunkow and Fred Ramsdell of the United States and Japan’s Shimon Sakaguchi have been decisive for understanding how the immune system functions and why we do not all develop serious autoimmune diseases.
Sakaguchi, a professor at the Immunology Frontier Research Centre in Osaka, told Swedish broadcaster Sveriges Radio: “It’s an honour for me. I’m looking forward to visiting Stockholm in December” to receive the award in person.
The Nobel committee was however unable to reach the two US-based laureates to break the news to them in person.
“If you hear this, call me,” the head of the Nobel Assembly, Thomas Perlmann, joked at the press conference announcing the winners.
The three won the prize for research that identified the immune system’s “security guards”, called regulatory T-cells.
Their work concerns “peripheral immune tolerance” that prevents the immune system from harming the body, and has led to a new field of research and the development of potential medical treatments now being evaluated in clinical trials.
“The hope is to be able to treat or cure autoimmune diseases, provide more effective cancer treatments and prevent serious complications after stem cell transplants,” the jury said.
Protecting the body
Sakaguchi made the first key discovery in 1995.
At the time, many researchers were convinced that immune tolerance only developed due to potentially harmful immune cells being eliminated in the thymus, through a process called “central tolerance”.
Sakaguchi, 74, showed that the immune system is more complex and discovered a previously unknown class of immune cells, which protect the body from autoimmune diseases.
Brunkow, born in 1961 and a senior project manager at the Institute for Systems Biology in Seattle, and Ramsdell, a 64-year-old senior advisor at Sonoma Biotherapeutics in San Francisco, made the other key discovery in 2001, when they were able to explain why certain mice were particularly vulnerable to autoimmune diseases.
“They had discovered that mice have a mutation in a gene that they named Foxp3,” the jury said.
“They also showed that mutations in the human equivalent of this gene cause a serious autoimmune disease, IPEX.”
Two years later, Sakaguchi was able to link these discoveries.
The trio will receive their prize—a diploma, a gold medal and $1.2 million split three ways— at a formal ceremony in Stockholm on December 10.
Researchers from major US institutions typically dominate the Nobel science prizes, due largely to the US’ longstanding investment in basic science and academic freedoms.
But that could change down the line following massive US budget cuts to science programmes announced by President Donald Trump.
Since January, the US National Institutes of Health (NIH) has terminated 2,100 research grants totalling around $9.5 billion and $2.6 billion in contracts, according to an independent database called Grant Watch.
Trump eyeing Peace Prize
Thomas Perlmann, secretary general of the committee that awards the Nobel Prize for Medicine, told AFP it was “no coincidence that the US has by far the most Nobel laureates”.
“But there is now a creeping sense of uncertainty about the US’ willingness to maintain their leading position in research,” he said.
Trump has meanwhile made no secret of the fact that he wants to win a Nobel himself— the Peace Prize.
Nobel experts have however said his “America First” policies and divisive style give him little chance.
“It’s completely unthinkable,” Oeivind Stenersen, a historian who has conducted research and co-written a book on the prize, told AFP.
“(Trump) is in many ways the opposite of the ideals that the Nobel Prize represents,” he said, citing “multilateral cooperation” as an example.
Trump “follows his own path, unilaterally,” Stenersen added.
Sudan’s networks of volunteers Emergency Response Rooms (ERR) helping people survive war and famine— are seen as a possible contender this year, as are media watchdogs the Committee to Protect Journalists, Reporters Without Borders, and Yulia Navalnaya, the widow of Kremlin critic Alexei Navalny.
WASHINGTON: The White House has said that President Donald Trump is in good health, even as people continue to question how his age may affect his performance as the country’s most powerful man.
White House press secretary Karoline Leavitt said on Monday that a recent MRI conducted on President Trump was preventative in nature and revealed that he was in good cardiovascular health.
Speaking to reporters at a press briefing at the White House, Leavitt said men of Trump’s age benefited from such screenings.
‘President Trump’s cardiovascular imaging was perfectly normal, no evidence of arterial narrowing, impairing blood flow or abnormalities in the heart or major vessels,’ Leavitt said of the 79-year-old president.
‘The heart chambers are normal in size. The vessel walls appear smooth and healthy, and there are no signs of inflammation or clotting. Overall, his cardiovascular system shows excellent health. His abdominal imaging is also perfectly normal,’ Leavitt said.
Trump underwent a magnetic resonance imaging scan during a recent medical evaluation, but did not disclose the purpose of the procedure, which is not typical for standard check-ups. The lack of details raised questions about whether full information regarding the president’s health is being released in a timely fashion by the White House.
Trump is sensitive about his age and well-being. He personally attacked a female New York Times reporter on social media last week over a story she co-wrote examining the ways that Trump’s age may be affecting his energy levels.
Politics
Tajikistan says five Chinese nationals killed in cross-border attacks from Afghanistan in past week
- China advises companies, personnel to evacuate border area.
- Embassy says Chinese citizens targeted in armed attack on Sunday.
- Another border attack on Friday killed three citizens: embassy.
Five Chinese nationals have been killed and five more injured in Tajikistan in attacks launched from neighbouring Afghanistan over the past week, Tajik authorities and China’s embassy in the Central Asian country said on Monday.
China’s embassy in Dushanbe, the capital, advised Chinese companies and personnel to urgently evacuate the border area.
It said that Chinese citizens had been targeted in an armed attack close to the Afghan border on Sunday. On Friday, it said that another border attack — which Tajik authorities said had involved drones dropping grenades — had killed three Chinese citizens.
Tajikistan, a mountainous former Soviet republic of around 11 million people with a secular government, has tense relations with the Taliban authorities in Afghanistan. It has previously warned of drug smugglers and illicit gold miners working along the remote frontier.
China, which also has a remote, mountainous border with Tajikistan, is a major investor in the country.
There was no immediate response on Monday from the authorities in Afghanistan to the Tajik statement.
But Afghanistan’s foreign ministry last week blamed an unnamed group, which it said was out to create instability, and said it would cooperate with Tajik authorities.
Tajik President Emomali Rahmon’s press service said on Monday that Rahmon had met with the heads of his security agencies to discuss how to strengthen border security.
It said that Rahmon “strongly condemned the illegal and provocative actions of Afghan citizens and ordered that effective measures be taken to resolve the problem and prevent a recurrence of such incidents.”
Tajikistan endured a brutal civil war in the 1990s after independence from Moscow, during which Rahmon initially rose to power. The country is closely aligned with Russia, which maintains a military base there.
Millions of Tajiks, a Persian-speaking nation, live across the border in Afghanistan, with Tajikistan historically having backed Afghan Tajiks opposed to the Taliban.
A man in India’s south brutally killed his estranged wife at a women’s hostel and took a selfie with her dead body, according to NDTV.
The victim, identified as Sripriya, employed at a private firm in Coimbatore, Tamil Nadu, had separated from her husband, Balamurugam, who was from Tirunelveli.
Police said the suspect arrived at the hostel on Sunday afternoon, concealing a sickle in his clothes, and was seeking to meet her.
They had an argument soon after the couple met, and the feud turned into a violent attack by Balamurugan, who drew the sickle and hacked the woman to death.
Furthermore, the police said he then took a selfie with her body and shared it on his WhatsApp status, accusing her of “betrayal”.
The incident spread panic and chaos in the hostel.
Following the brutal murder, the suspect did not escape from the spot but waited until the police arrived, and he was arrested at the crime scene. The murder weapon was recovered.
The initial investigation suggested that he suspected his wife of being in a relationship with another man.
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