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What does P4 stand for?

P4 stands for Progesterone (hormone)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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Samples in periodicals archive:

Stein, PhD and his colleagues have been investigating this question and have discovered something remarkable--that the hormone progesterone confers profound neuroprotective effects that improve outcomes and reduce mortality following brain injuries.
Progesterone is the proper name to signify identical-to-natural progesterone; progestin signifies non-bioidentical progesterone.
Surprisingly, when nearly 100 women were given either soymilk with isoflavones, transdermal progesterone (a patch), both soymilk and progesterone, or soymilk without isoflavones, two of the groups had the highest amount of bone loss: the control group and the group that used both soymilk and progesterone.