CFA - Centro Fecondazione Assistita

Part of head of animal sperm, usually forming a cap over the nucleus.

A sistem of striations in the cytoplasm, radiating from the centriole, often conspicuous during cleavage of the egg, or during fusion of nuclei at fertilization.

Aborto clinico nel quale il prodotto del concepimento non viene espulso spontaneamente dall'utero.

Aborto clinico che avviene prima della 20a settimana di gestazione o, in caso di epoca gestazionale sconosciuta, di un peso uguale o inferiore a 500g.

Mancata comparsa del menarca in un'adolescente (entro i 16 anni) o scomparsa delle mestruazioni in una donna che ha già mestruato, per un periodo di tre precedenti cicli o per sei mesi.

General name for any substance with male sex hormone activity., responsible for development and maintenance of many male sexual characteristics. See Testosterone.

A protein produced in an animal when a certain kind of substance (an antigen) which is normally foreign to its tissues gains access to them; the antibody combines chemically with tha antigen. The combination of antibody with antigen kills or immubilizes parasites, or makes them more suscetibile to phagocytes or make their poison innocuous.

Chromosome which is not a sex-chromosome

Is a procedure performed on the embryos prior to transfer to the uterus on Day 3 of development. This is done in order to increase the chance of embryo implantation and pregnancy, by creating an artificial opening in the "shell".

Reduction of sperm motility. Only progressive motile spermatozoa can fertilize the oocyte. If their count is reduced then the conception rate also decreases.

Absence of spermatozoa in the sediment of a centrifuged sample.