Health
UK Scientists Celebrate Breakthrough Births Using Three-Person IVF to Prevent Genetic Disorders
In a significant scientific milestone, eight babies have been born in the United Kingdom using a pioneering fertility technique that combines DNA from three people. The innovation is designed to prevent the transmission of rare, potentially fatal mitochondrial diseases — and represents a major step forward in reproductive medicine.
The births were made possible by a 2016 change in UK law allowing the use of mitochondrial replacement therapy (MRT), a method still banned in countries like the United States but permitted in places such as Australia. Researchers from Newcastle University and Monash University, reporting in the New England Journal of Medicine, said the babies were born following IVF procedures involving 22 women. One additional pregnancy is ongoing.
“This marks an important milestone,” said Dr. Zev Williams, director of the Columbia University Fertility Centre in the U.S. “Expanding the range of reproductive options empowers more couples to pursue safe and healthy pregnancies.”
Mitochondrial disorders are caused by mutations in the small amount of DNA found in the mitochondria — the energy-producing structures in cells inherited only from the mother. These mutations can lead to severe conditions including seizures, muscle weakness, organ failure, and in some cases, death during infancy.
To prevent this, MRT replaces faulty mitochondria with healthy ones from a donor egg. The mother’s nucleus — which contains the vast majority of her genetic material — is transferred into a donor egg that has had its own nucleus removed. The result is an embryo with DNA from three individuals: the mother, the father, and a third donor, though the donor DNA accounts for less than 1% of the child’s total genetic material.
Experts caution that the procedure is only suitable for women at high risk of passing on mitochondrial diseases, particularly when traditional embryo screening methods are insufficient. One of the eight babies showed slightly elevated levels of abnormal mitochondria, but not enough to pose a health risk, researchers said.
Dr. Andy Greenfield of the University of Oxford called the research “a triumph of scientific innovation,” while stem cell specialist Robin Lovell-Badge emphasized that the small amount of donor DNA is far less than what would be found in procedures like bone marrow transplants.
To date, 35 families in the UK have received approval to use the technique, which is tightly regulated. However, concerns remain over the long-term effects of heritable genetic modifications, a key reason the U.S. has yet to permit clinical research on MRT.
For families affected by mitochondrial disease, the breakthrough brings renewed hope. Liz Curtis, who lost her daughter Lily to a mitochondrial disorder in 2006, called the development “super exciting.” Curtis now leads the Lily Foundation, which supports research into the disease, including the work at Newcastle.
“It’s hope for families that previously had none,” she said.
Health
World Cup Emotion Can Strain the Heart, Cardiologists Warn Fans at Risk
As the World Cup begins, medical experts are cautioning football fans with underlying heart conditions that the emotional intensity of matches can place unexpected strain on the cardiovascular system.
Cardiologists say that the excitement, tension, and anxiety generated during high-stakes games can trigger physical reactions similar to intense exercise, raising heart rate, blood pressure, and stress hormones.
“Intense emotions, whether positive or negative, can act as ‘precipitating risk factors’ for cardiovascular events such as heart attack,” said Paola Santalucia, a cardiologist and board member of the European Heart Network.
She explained that moments of extreme excitement, such as a decisive penalty shootout or a last-minute goal, may pose risks for people already living with heart disease. Those with additional risk factors, including hypertension, obesity, or smoking habits, are also advised to be cautious during emotionally charged matches.
Research using wearable devices has shown that during major football events, some fans experience heart rates climbing as high as 150 beats per minute. That level is comparable to sprinting and reflects how strongly the body reacts to emotional stress.
A study examining supporters during the 2025 German Cup final found that even watching from home can significantly affect physiological responses. “They still had an increase in heart rate that compares to walking, even though they didn’t walk,” said Christian Deutscher, professor of sports economics at Bielefeld University and co-author of the study.
He noted that the most intense reactions often occur not during goals themselves, but during moments of uncertainty such as VAR checks, penalty shootouts, or shots striking the post. These unpredictable situations, he said, are what drive the strongest emotional and physical responses among fans.
Deutscher also pointed out that stadium spectators may experience even greater strain due to environmental factors such as heat and alcohol consumption.
However, experts emphasize that football itself is not inherently dangerous. Instead, it is the body’s natural response to excitement that can create temporary stress.
“The adrenergic stimulation is at its max: extreme high blood pressure, high heart rate, and adrenaline, cortisol, skyrocketing,” said Dan Atar, professor of cardiology at Oslo University Hospital. In rare cases, he added, this surge can contribute to the rupture of arterial plaque in vulnerable individuals, potentially leading to a heart attack.
Atar stressed that such events can occur in everyday situations as well, including physical exertion like shoveling snow. “It is in no way dangerous to watch a football game,” he said. “All this is physiologic. It’s not dangerous to be excited.”
Still, he acknowledged that combining emotional stress with alcohol, heat, and pre-existing conditions can increase risk for some viewers.
Doctors advise those at higher risk to continue prescribed medications, limit alcohol intake, avoid smoking, and watch for warning signs such as chest pain or irregular heartbeat.
“The key message is not to avoid enjoying the match, but to do so with moderation and awareness,” Santalucia said.
Health
AI Models Show Ability to Mimic Human Emotions, Offering New Pathways for Mental Health Research
Health
AI Saves Clinicians Weeks of Work but Health Systems Struggle to Keep Up, Philips Report Finds
-
Entertainment2 years agoMeta Acquires Tilda Swinton VR Doc ‘Impulse: Playing With Reality’
-
Sports2 years agoChina’s Historic Olympic Victory Sparks National Pride Amid Controversy
-
Business2 years agoSaudi Arabia’s Model for Sustainable Aviation Practices
-
Business2 years agoRecent Developments in Small Business Taxes
-
Home Improvement2 years agoEffective Drain Cleaning: A Key to a Healthy Plumbing System
-
Politics2 years agoWho was Ebrahim Raisi and his status in Iranian Politics?
-
Sports2 years agoKeely Hodgkinson Wins Britain’s First Athletics Gold at Paris Olympics in 800m
-
Business2 years agoCarrectly: Revolutionizing Car Care in Chicago
