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How to Tell If You're Old (or Getting There)

University of Ulm scientists have identified biomarkers that are indicative of telomere shortening. CRAMP, stathmin, EF-1α, and chitinase are proteins that they found to be secreted from telomere-dysfunctional bone-marrow cells of late generation telomerase knockout mice. Their study, which was published this week in PNAS, showed an increase in expression of these markers in the blood of aging and geriatric people with age-related disease; it also allowed them to discriminate between young and old and between disease and healthy control groups.

The Scan

Could Cost Billions

NBC News reports that the new Alzheimer's disease drug from Biogen could cost Medicare in the US billions of dollars.

Not Quite Sent

The Biden Administration likely won't meet its goal of sending 80 million SARS-CoV-2 vaccine doses abroad by the end of the month, according to the Washington Post.

DTC Regulation Proposals

A new report calls on UK policymakers to review direct-to-consumer genetic testing regulations, the Independent reports.

PNAS Papers on Mosquito MicroRNAs, Acute Kidney Injury, Trichothiodystrophy

In PNAS this week: microRNAs involved in Aedes aegypti reproduction, proximal tubule cell response to kidney injury, and more.