In our Reality Check stories, Herald-Leader journalists dig deeper into questions over facts, consequences and accountability. Read more. Story idea? hlcityregion@herald-leader.com. Rep. Thomas Massie ...

Cytotoxic T-lymphocyte antigen 4 (CTLA4) is a co-receptor expressed by activated, memory T cells and regulatory T cells 1,2,3,4,5,6. It is a homodimer that can bind to the homodimeric ligands CD80 ...

Executive function describes a set of cognitive processes and mental skills that help an individual plan, monitor, and successfully execute their goals. The “executive functions,” as they’re known, ...

Amber Barkley is a writer and editor with over 10 years of experience in topics ranging from personal finance to marketing analytics to fiction. She found her niche in personal finance in 2022, when ...

Researchers at Texas A&M have developed a nasal spray that appears to reverse brain aging by calming inflammation and restoring the brain’s energy systems. After just two doses, memory and cognitive ...

Mutual of Omaha has been helping customers since 1909. Inspired by hometown values and committed to being responsible and caring for each other, we exist for the benefit of our customers. And, like ...

Reverse transcription polymerase chain reaction (RTPCR) is a technique to detect or quantify RNA. It uses a reverse transcriptase enzyme to convert RNA to DNA, followed by PCR to amplify the DNA.