内容摘要：shows synthetic food colors common in U.S. foods are linked to neurobehavioral problems in children and that the dyes may cause or exacerbate symptoms, particularly hyperactivity. In addition, children may vary widely in their sensitivity to the dyes.

shows synthetic food colors common in U.S. foods are linked to neurobehavioral problems in children and that the dyes may cause or exacerbate symptoms, particularly hyperactivity. In addition, children may vary widely in their sensitivity to the dyes.

David Ayares, president and chief scientific officer of Revivicor, looks at pigs at the company’s research farm near Blacksburg, Va., on May 29, 2024, where organs are retrieved for animal-to-human transplant experiments. (AP Photo/Shelby Lum)David Ayares, president and chief scientific officer of Revivicor, looks at pigs at the company’s research farm near Blacksburg, Va., on May 29, 2024, where organs are retrieved for animal-to-human transplant experiments. (AP Photo/Shelby Lum)

Company video shows piglets running around behind the protective barrier, chewing on toys and nosing balls back and forth.They were born in sort of a porcine birthing center connected to the facility, weaned a day or two later and moved into their super-clean pens to be hand-raised. In addition to the on-site shower, their caretakers must put on a new protective suit and mask before entering each suite of pig pens — another precaution against germs.The pig zone is surrounded on all sides by security and mechanical systems that shield the animals. Outside air enters through multiple filtration systems. Giant vats hold backup supplies of drinking water. Standing over the pig rooms, VonEsch showed how pipes and vents were placed to allow maintenance and repair without any animal contact.

It will take years of clinical trials to prove whether xenotransplantation really could work. But if it succeeds, United Therapeutics’ plan is for even larger facilities, capable of producing up to 2,000 organs a year, in several places around the country.The field is at a point where multiple kinds of studies “are telling us that there’s no train wrecks, that there’s no immediate rejection,” Ayares said. “The next two or three years are going to be super exciting.”

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

MEXICO CITY (AP) — A government-sponsored junk food ban in schools across Mexico took effect on Saturday, officials said, as the country tries to tackle one of the world’s worst obesity and diabetes epidemics.“They are not all created equal,” said Gabby Headrick, a nutrition researcher at George Washington University’s school of public health. “It is much more complicated than just pointing the finger at ultra-processed foods as the driver of chronic disease in the United States.”

Means has mostly steered clear of Kennedy’s. But on her website, she has called for more investigation into their safety and recommends making it easier for patients to sue drugmakers in the event of vaccine injuries. Since the late 1980s, federal law has shielded those companies from legal liability to encourage development of vaccines without the threat of costly personal injury lawsuits.

She received her medical training atbut has built an online following by criticizing the