Immunology

Growth factors linked to stem cell aging in bone marrow study

Our bone marrow—the fatty, jelly-like substance inside our bones—is an unseen powerhouse quietly producing 500 billion new blood cells every day. That process is driven by hematopoietic stem cells that generate all of ...

Health

Bacteria detected in tattoo and permanent makeup inks

Researchers have detected anaerobic and aerobic bacteria in commercial tattoo and permanent makeup inks. The findings, reported in Applied and Environmental Microbiology demonstrate that the inks could be a source of human ...

Oncology & Cancer

A disturbing trend in colon and rectal cancers

Over the past three decades, rates of colon and rectal cancers—collectively known as colorectal cancer—have steadily risen among people under the age of 50. It's particularly striking because rates have been declining ...

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