More Anti-inflammatory Genes Mean Longer Lifespans for Mammals

Mammal species with higher copy numbers of siglec receptor genes have longer maximum lifespans —

We age in part thanks to “friendly fire” from the immune system — inflammation and chemically active molecules called reactive oxygen species that help fight infection, but also wreak molecular havoc over time, contributing to frailty, disability and disease. The CD33rSiglec family of proteins are known to help protect our cells from becoming inflammatory collateral damage, prompting researchers at the University of California, San Diego School of Medicine to ask whether CD33rSiglecs might help mammals live longer, too. …Read the full story from the UC San Diego Newsroom

Stuck on Flu

How a sugar-rich mucus barrier traps the virus – and it gets free to infect

Researchers at the University of California, San Diego School of Medicine have shown for the first time how influenza A viruses snip through a protective mucus net to both infect respiratory cells and later cut their way out to infect other cells. … Read the full story from the UC San Diego News Center


Dr. Robert T. "Chip" Schooley

Dr. Robert T. Schooley

Project co-investigators from the Division of Infectious Diseases in the Department of Medicine are Robert T. “Chip” Schooley, MD, professor of medicine and chief of the division; associate project scientist Xing-Quan Zhang; and Hui-Wen Chen, now at the School of Veterinary Medicine at National Taiwan University.

Dr. Schooley is academic affairs vice chair for the Department of Medicine.

Citation for the study report in Virology Journal:

Miriam Cohen, Xing-Quan Zhang, Hooman P Senaati, Hui-Wen Chen, Nissi M Varki, Robert T Schooley, Pascal Gagneux. Influenza A penetrates host mucus by cleaving sialic acids with neuraminidase. Virology Journal 2013, 10:321 (22 November 2013) doi:10.1186/1743-422X-10-321.  |  Full text (Open access)

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