Transfer pathways between the ovaries and the uterus in the cebus monkeys (Cebus apella).

The aim of this work was to study, in the Cebus apella monkey, the developmental changes in the microanatomy of the utero-ovarian ligament (UOL) and whether their vascular and neural elements might be involved in the transfer of signals between the ovaries and uterus. Sections including uterus, UOL, and ovary obtained from two foetuses, two prepubertal, and four cycling monkeys, two of them treated with a neuron-axonal tracer, diamidino yellow (DY) into the corpus luteum (CL) and the remaining two into the endometrium, were analyzed for the expression of neurofilament protein (NFP) and tracer distribution. Eight regularly cycling females were used to investigate the transfer to the CL of pulses of prostaglandin F(2alpha) (PGF(2alpha)) (n=4) or its vehicle (n=4) given intra-uterus.