Obstruction of epididymal lumen fluid flow alters the intraluminal environment and potentially changes epididymal epithelial cell function when those functions are dependent on intraluminal regulatory molecules. This investigation tested the hypothesis that obstruction of the rat vas deferens alters caput epididymidal protein synthesis and secretion In vivo. Adult male rats were subjected to va...

The ultrastructure of the principal cells of the mouse epididymis was studied using osmium impregnation techniques which have the advantage that the endoplasmic reticulum (ER) content displays a positive reactivity after glutaraldehyde fixation whereas the Golgi condensing vacuoles are negative. In the proximal part (caput) of the epididymis, the Golgi apparatus formed a large supranuclear area...

BACKGROUND AND AIMS Helianthemum marifolium and H. caput-felis are two endangered plant species of the western Mediterranean. Several aspects of the reproduction of both species were examined to determine whether their rarity could be related to factors causing reproductive limitation. METHODS The flowering and fruiting phenology of both species in two non-sympatric island populations (Mallor...

To investigate whether the variable length of the epididymis in men with congenital bilateral absence of the vas deferens (CBAVD) might have a correlation with fertilization and pregnancy rates in in vitro fertilization (IVF) treatment, we conducted a retrospective study involving a total of 60 CBAVD patients. All patients in this study had epididymal micropuncture in conjunction with perivascu...

Behavioral changes resembling human athetoid and choreiform hyperkinesias were produced b y unilateral injections of L-3,4-dihydroxyphenylalanine (l-D O P A ), dopamine, 3-m ethoxy-tyram ine and dexamphetamine into the rostromedial part of the caput caudati o f ca ts; saline, noradrenaline and 3,4 -dihydroxyphenylacetio acid were ineffective. Pretreatment with the tyrosine hydroxylase inhibitor...

OBJECTIVE To study using immunohistochemistry the localization of P2X receptor subtypes on the head of immature sperm in the human, mouse, hamster, and rat caput epididymidis. DESIGN Basic research. SETTING University-based hospital. PATIENT(S) Three human epididymides were obtained from patients undergoing orchidectomy for metastatic prostate cancer. MAIN OUTCOME MEASURE(S) P2X(1), P2X...