Author: Healthcare Propulsion Staff

The metabolism of cancer cells may play a key role in their ability to evade the immune system. This is demonstrated by a new study conducted by researchers at the University of Liège, which reveals how methylglyoxal stress – a by-product of tumor metabolism – promotes immunosuppression and the formation of metastases, and may contribute to resistance to immunotherapy and the progression of triple-negative cancer. In order to grow rapidly, cancer cells alter their metabolism and consume large quantities of glucose. This activity generates, in particular, methylglyoxal (MG), a highly reactive molecule already identified as a key factor in tumor…

Mutations are changes in the molecular “letters” that make up DNA, the genetic blueprint for cells. Mutations build up with age in every cell when DNA is damaged or when cells make mistakes in fixing or copying it. Most mutations are harmless, but when they disrupt genes, they can cause cancer and other diseases. Past studies in animals have shown that a large reduction in the number of calories they consume, called caloric restriction, extends their lifespans and slows aspects of aging. But whether caloric restriction also slows the rate at which mutations occur with age had not been investigated…

Abnormally high temperatures on the Tibetan Plateau triggered two catastrophic rainfall events halfway around the world in California and nearby states in early 2017 and 2023, a new study reports.This is the first time that researchers have identified this link, known as a climate teleconnection. The results could improve forecasts of extreme weather in the western U.S., which, in turn, could improve warnings for coastal communities and potentially save lives as well as billions of dollars in property damage, the study’s authors say.In December 2016 and February 2023, the Tibetan Plateau was warmer than usual for these times of the…

The world’s oldest known habitual drug use can be traced to an island in Indonesia, where ice age hunter-gatherers sucked on betel nuts — palm seeds that contain a neuroactive substance, a new study finds.Scientists made the discovery after studying strange grooves in the teeth of two prehistoric hunter-gatherers. The deep grooves were caused by regularly sucking on betel nuts (Areca catechu), likely for relief from the pain of toothache, according to the study, which was published Wednesday (Sept. 9) in the journal Science Advances.The partial skeletons of the two people were found on the island of Sulawesi, but their…

A growing body of evidence shows that exercise improves mood and cognitive function. However, much of this evidence comes from cycling, which allows researchers to precisely control exercise intensity in the laboratory. Running may play a special role in this story: it is a fundamental human movement, closely linked to our evolutionary history, and remains a popular form of exercise practiced by millions of people worldwide. This raises two basic questions about running: does it provide similar benefits, and if so, how little running is enough? To address these questions, the researchers used a treadmill to precisely control exercise intensity…

Astronomers just dropped a video 27 years in the making: the highest-definition animation of a gargantuan black hole jet blasting out of a distant galaxy and twisting off into space.The video, made from 116 images taken between 1995 and 2022, captured a blazar known as 3C 345, in the constellation Hercules. A blazar is a sort of quasar — a bright, feeding supermassive black hole embedded in the center of a faraway galaxy — that emits huge jets of gas into its environment. The jets blaze at nearly the speed of light and are charged with highly concentrated X-rays and…

As insurance premiums continue to rise, a new study finds that escalating healthcare spending is the leading factor behind the trend. Researchers at Yale University analyzed data on premiums, healthcare costs and insurer markups from the Centers for Medicare & Medicaid Services dated from 2011 to 2024, and found the average insurance premium increased by 78.4%, or $3,143, in that time frame. By comparison, healthcare spending increased by $2,844, or 84.2% between 2011 and 2024, per the study. Insurer markups actually declined from 18.6% of premiums in 2011 to 14.9% in 2024.  Overall, the analysts found that healthcare spending accounted…

Artificial intelligence (AI) systems can now hold conversations, reason through difficult mathematical equations, and respond in ways that seem more human. As AI grows more advanced, the question is shifting from the realm of science fiction to scientific debate.A recent preprint study examined “consciousness steering,” an AI-tuning technique that affects how an AI model expresses ideas about self-awareness. The study suggested that if AI is allowed to claim consciousness, it’s also more likely to say it believes in ghosts or vampires. But today’s most advanced models with these safeguards enabled are unable to perceive consciousness in other sentient beings, like…

Employers Health and Judi Health are teaming up to launch StarkRx, a new cost-plus benefit offering designed to drive transparency for employers. The approach unites the expertise of Employers Health as a group purchasing organization for pharmacy benefits that’s backed by employers with the technology available through Judi. The goal, the partners said, is to ensure that self-funded employers have greater access to transparency data that they can use to identify and manage cost drivers. Employers are expect another year of significant healthcare costs increases in 2027, with pharmaceuticals serving as a major factor behind the trend. A recent analysis…

Archaeologists excavating in southwestern China have discovered a cave that was used by Denisovans for more than 100,000 years. Five human fossils, scores of stone tools, and hundreds of animal bones recovered from the cave reveal for the first time that the enigmatic Denisovans thrived in a forested environment where they hunted and ate large game animals.Denisovans were a lineage of humans who lived in Asia and went extinct around 30,000 years ago. Ancient DNA has shown that Denisovans, Neanderthals and modern humans (Homo sapiens) are distantly related and that all three groups interbred in the past. But while archaeologists…