In recent years, artificial intelligence (AI) has been recognized as a powerful tool in the field of medical imaging. However, these models can be subject to several biases, leading to inequities in how they benefit both doctors and patients. Understanding these biases and how to mitigate them is the first step towards a fair and trustworthy AI. Source: SPIE

The biological age of humans and mice undergoes a rapid increase in response to diverse forms of stress, which is reversed following recovery from stress, according to a new study. These changes occur over relatively short time periods of days or months, according to multiple independent epigenetic aging clocks. Source: Cell Press/Science Daily

NIH-funded researchers developed an online tool that can analyze self-collected, at-home videos with a smartphone. When deployed in a nationwide study, the tool could predict physical health and osteoarthritis of the knee or hip.

Developing and testing new treatments or vaccines for humans almost always requires animal trials, but these experiments can sometimes take years to complete and can raise ethical concerns about the animals' treatment. Now, researchers reporting in ACS Central Science have developed a new testing platform that encapsulates B cells -- some of the most important components of the immune system -- into miniature 'organoids' to make vaccine screening quicker and greatly reduce the number of animals needed. Source: American Chemical Society/Science Daily

Missing crucial doses of medicines and vaccines could become a thing of the past thanks to Rice University bioengineers' next-level technology for making time-released drugs. Source: Rice University/Science Daily

Scientists have employed inventive chemistry to produce an injectable biomaterial with significantly improved adhesive strength, stretchability, and toughness. This chemically modified, gelatin-based hydrogel has attractive features, including rapid gelation at room temperature and tunable levels of adhesion. This custom-engineered biomaterial is ideal as a surgical wound sealant, with its controllable adhesion and injectability and its superior adherence to a variety of tissue and organ surfaces. Source: Terasaki Institute for Biomedical Innovation/Science Daily

Researchers at Carnegie Mellon University are developing lipid nanoparticles that are designed to carry mRNA specifically to the pancreas. Their study in mice could pave the way for novel therapies for intractable pancreatic diseases, such as diabetes and cancer.

When lymphatic vessels fail, typically their ability to pump out the fluid is compromised. Researchers have now developed a new treatment using nanoparticles that can repair lymphatic vessel pumping. Traditionally, researchers in the field have tried to regrow lymphatic vessels, but repairing the pumping action is a unique approach. Source: Georgia Institute of Technology/Science Daily

Researchers are developing new MRI contrast agents that are activated in low oxygen environments enabling improved diagnosis and treatment of hypoxic tumors as well as other diseases.