Progesterone is a hormone that plays a big part in reproduction. It's made mostly in the ovaries, and the level fluctuates with your menstrual period. There is less progesterone after menopause.

Routine assessment by an endocrinologist and laboratory tests to measure hormone levels aren't necessary in most adolescent boys with gynecomastia (male breast enlargement), concludes a study in the ...

Estrogen and progesterone are complementary reproductive hormones. Estrogen shapes everything from puberty to menstrual cycles to bone health, and progesterone is key to the second half of the ...

Progesterone injections are often prescribed for pregnant women who’ve experienced a miscarriage or multiple miscarriages. But experts disagree about whether or not they’re effective. Here’s what you ...

Human breast cancer MCF-7 cells were maintained in D-MEM supplemented with 10% foetal calf serum and 2 mM glutamine. The absence of mycoplasma contamination was verified regularly using the Mycotect ...

A new synthetic hormone promises to tease apart the many different roles of the plant hormone auxin and could lead to a new way to ripen fruit. A lab-designed hormone may unlock mysteries harbored by ...

Scientists have discovered a way to extend the lives of lab mice by 40 percent and suggest that it could one day be used as a treatment to boost human lifespans. In a study published this week in the ...