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 ...

Cello

The cello (plural cellos or celli — the c is pronounced [tʃ], as in the ch in "check", thus "chel-lo") is a bowed string instrument. The word derives from the Italian violoncello. A person who plays a cello is called a cellist. The cello is used as a solo instrument, in chamber music, and as a member of the string section of an orchestra. It is the second physically largest member of the violin family of musical instruments, next to the double bass.

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