The blood-testis barrier (BTB) is one of the tightest blood-tissue barriers in the mammalian
body. It divides the seminiferous epithelium into the basal and the apical (adluminal) …

Spermatogenesis is the process by which a single spermatogonium develops into 256
spermatozoa, one of which will fertilize the ovum. Since the 1950s when the stages of the …

Spermiation is the process by which mature spermatids are released from Sertoli cells into
the seminiferous tubule lumen prior to their passage to the epididymis. It takes place over …

Spermatogenesis is supported by intricate crosstalk between Sertoli cells and germ cells
including spermatogonia, spermatocytes, haploid spermatids, and spermatozoa, which …

Spermatogenesis is an intriguing but complicated biological process. However, many
studies since the 1960s have focused either on the hormonal events of the hypothalamus …

Spermatogonial stem cells (As spermatogonia) are single cells that either renew themselves
or produce Apr (paired) spermatogonia predestined to differentiate. In turn, the Apr divide …

Although spermatogenesis is essential for reproduction, little is known about spermatogonial
stem cells. These cells provide the basis for spermatogenesis throughout adult life by …

ABSTRACT A detailed understanding of the hormonal regulation of spermatogenesis is
required for the informed assessment and management of male fertility and, conversely, for …

A combination of exogenous contractile forces generated by a stack of F-actin-containing
hoops embracing the apical region of the elongating spermatid nucleus and an endogenous …

The cytoskeleton of terminally differentiated mammalian Sertoli cells is one of the most
elaborate of those that have been described for cells in tissues. Actin filaments, intermediate …