Androgen is essential for maintenance of spermatogenesis in the testis and for maturation of spermatozoa in the epididymis. The effects of androgen are mediated through its receptor (AR), the levels of which are, in turn, regulated by androgen. Previous studies have shown that AR concentrations in Leydig and Sertoli cells are differentially regulated during development. The aim of the present s...

The mammalian epididymis is the site where spermatozoa are matured and then stored. Though many studies have described epididymal functions and their regulation, little is known about how aging affects this tissue. The Brown Norway rat, which does not show the many age-related pathologies common to other rat strains, was used as a model to study aging of the epididymis. The present study was de...

Zebra mussels (ZMs) (Dreissena polymorpha) and Eurasian watermilfoil (EWM) (Myriophyllum spicatum) are aggressive aquatic invasive species posing a conservation burden on Minnesota. Recognizing areas at high risk for invasion is a prerequisite for the implementation of risk-based prevention and mitigation management strategies. The early detection of invasion has been challenging, due in part t...

Caput succedaneum and cephalohematoma are conditions that rarely evoke much concern in the NICU but deserve more attention. This article examines the two conditions, reviews the literature, discusses possible complications, and leaves the reader with a heightened awareness of these seemingly benign lesions.

Caput Succedaneum is a birth scar that seen in the head area sometime after baby born, this due to strong pressure on when entering canal resulting damming of peripheral circulatory and lymph which accompanied by discharge body fluids into extravascular tissue causes oedemas or lumps baby's area, abnormality found during prolonged labor vacuum extraction, conditions occur newborns often cause c...

iran is one of the most important centers of diversity for onobrychismill. genus. onobrychis species collected from different habitates of kermanshah province during 2010-2012 were evaluated and the relationship among their eco-geographical distribution, geographical and ecological characteristics was analyzed using arcgis.  the results showed that most of the species of onobrychis grow in the ...