Early pregnancy factor (EPF) or early conception factor (ECF) is a protein associated with mammalian embryos shortly after fertilization. It may be composed of more than one molecule. It was first described in 1976.
Read more about Early Pregnancy Factor: Detection, Origin and Function
Famous quotes containing the words early, pregnancy and/or factor:
“We can slide it
Rapidly backwards and forwards: we call this
Easing the spring. And rapidly backwards and forwards
The early bees are assaulting and fumbling the flowers:
They call it easing the Spring.”
—Henry Reed (1914–1986)
“If pregnancy were a book they would cut the last two chapters.”
—Nora Ephron (20th century)
“In his very rejection of art Walt Whitman is an artist. He tried to produce a certain effect by certain means and he succeeded.... He stands apart, and the chief value of his work is in its prophecy, not in its performance. He has begun a prelude to larger themes. He is the herald to a new era. As a man he is the precursor of a fresh type. He is a factor in the heroic and spiritual evolution of the human being. If Poetry has passed him by, Philosophy will take note of him.”
—Oscar Wilde (1854–1900)