Researchers have created their own temporary tattoo sticker that has a hidden purpose: detecting the presence of one drug used to “spike” alcoholic beverages.
Category: biotech/medical – Page 430
Stopping DNA damage in T cells during PARP inhibitor cancer treatment enhances antitumor effectiveness
The cancer drugs called PARP inhibitors have a puzzling reputation: even though they are treatment mainstays for multiple forms of cancer, they can damage cancer-killing T cells and disrupt the potential for meaningful therapy. New research from medical scientists in China is revealing ways to sidestep this obstacle by preventing PARP-induced collateral damage to T cells.
A multi-disciplinary team of researchers in Wuhan, working at several collaborating institutions, developed methods to prevent damage and showed that doing so increases the drugs’ efficacy against ovarian tumors and may help expand PARP inhibitors’ overall use. The PARP inhibitor drug family consists of slightly more than half a dozen medications, and the same problems appear consistent in all of them, say investigators participating in the study at Tongji Hospital, Tongji Medical College and Huazhong University of Science and Technology.
Writing in the journal Science Translational Medicine, the Wuhan-based researchers explain that PARP inhibitors have become standard treatments for epithelial ovarian cancer, the most lethal gynecologic cancer. However, PARP inhibitors often can’t eliminate tumors on their own. Doctors have attempted to combine PARP medication with immunotherapies, such as immune checkpoint inhibitors, but results have been mixed, creating yet another obstacle in the PARP treatment saga.
Preclinical pitfalls: How to avoid costly formulation failures
Discover the world’s best science and medicine | Nature.com
Childhood strokes are rare, so treating them takes an exceptional set of skills
“It’s not a true aspiration catheter, but it can work,” says Sillero. “We have to be careful because the groin is very small at this age — you have to really think outside the box.”
Neurosurgical procedures are especially challenging when operating on kids under two, he explains, partly because medical supply companies don’t make miniature versions of devices such as catheters, since paediatric stroke and aneurysm (a bulge in a blood vessel) are so rare.
Sillero has overcome such challenges not only through improvisation, but thanks to Children’s Health’s innovative model for diagnosis and treatment, which encourages close collaboration between different specialists.
Discovery of bumblebee medicine’s simple structure makes synthetic production viable
Researchers at the University of Chemistry and Technology, Prague have successfully developed a method to chemically synthesize callunene, a natural compound that protects bumblebees from a deadly gut parasite. In a recent discovery, the team also determined that the naturally occurring compound is a 50/50 mixture of its mirror-image forms, meaning the synthetic version can be used directly to safeguard vital pollinator colonies.
The study, published in the Journal of Natural Products, addresses the threat posed by the parasite Crithidia bombi. This protozoan infects bumblebees, impairing their ability to find nectar-rich flowers, which ultimately leads to starvation, reduced colony fitness, and death. The problem is especially acute in commercial indoor farming operations that rely on healthy pollinator colonies. Not only because of the farming effectiveness, but also because parasites might be spread from indoor pollinators to wild colonies.
Nature provides a defense in the form of callunene, a compound found in the nectar of heather (Calluna vulgaris). Bumblebees that forage on heather are prophylactically protected from Crithidia infection. However, the loss of heathland habitats and the difficulty of isolating the compound from natural sources have made this solution impractical on a large scale.
Study finds infant anesthesia exposure accelerates visual brain activity patterns
New research published in Proceedings of the National Academy of Sciences (PNAS) finds that prolonged and/or repeated exposure to gamma-aminobutyric acid (GABA) anesthetic agents (sevoflurane, propofol) for infants in the first two months of life resulted in an accelerated maturation of brain electrical activity patterns evoked by visual stimuli when recorded at 2–5 months of age, compared to infants who did not have early general anesthesia exposure.
These findings may suggest the use of non-GABA-active anesthetics for the newborn age-range. To address such concerns, a large multicenter clinical trial (called TREX) is currently in progress using a combination of anesthetic agents in order to minimize exposure to GABA-active anesthetics.
The paper is the fourth in a series emerging from a prospective longitudinal study known as the General Anesthesia and Brain Activity (GABA) Study, led by researchers at Boston Children’s Hospital and Northeastern University.
Space Threat: Massive Asteroid 2025 OW Approaches Earth | WION Pulse
Basically there are three meteorites in our solar system that may pass by earth but most likely far away from the earth. Even though this news site says it may hit earth I am not quite certain it will.
Asteroid 2025 OW, the size of a skyscraper, is tearing through space next week—and it’s coming perilously close to Earth. NASA says no impact risk this time, but astronomers are sounding the alarm: these cosmic flybys are more frequent and more dangerous than you think. See why we dodged disaster and what happens if luck runs out.
#asteroid #earth #wion.
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