Reovirus was isolated from commercial rabbit colonies in farms at KafrElsheikh and El-Gharbia Governorate with a history of neonatal hydrocephalus and blindness. The affected neonates exhibited hydrocephalus at age from 3-20 days with seasonal incidence at a late summer and early autumn (August, Sept. and Oct.). The gross lesions observed at necropsy were bulging of the skull, collapse of the c...

Polyspermy is pathological in mammals (Austin & Walton, i960), but is uncommon because mechanisms exist which prevent its occurrence. In the sheep, cow, pig and other species, after penetration by the first spermatozoon, the zona pellucida undergoes a change, the 'zona reaction', which bars further spermatozoa from passing through the zona, but still allows them to enter it. Unlike the eggs of ...

STUDY POPULATION. This study was a nonrandomized controlled, parallel-group intervention trial with an active study population of 50 consecutively enrolled children aged 5 to 18 years. The study children underwent egg OIT after confirming immunoglobulin (Ig)E-mediated egg allergy by using a double-blind, placebo-controlled egg food challenge (DBPCFC). The control group included 32 children who ...

To determine whether a foreign unrearranged immunoglobulin gene can be functionally rearranged and expressed in vivo, a rabbit b9 kappa light chain gene construct containing a single germ-line kappa chain variable (V) region gene (V kappa), the five kappa chain joining (J) segments (J kappa), and the kappa chain constant (C) region germ-line gene (C kappa) was introduced into fertilized mouse e...

Fertilizing mammalian eggs in vitro has a history dating back to the early 20th century. Analyses on rodent embryos in short-term culture opened new prospects of research on human embryos in vitro. This phase of research really opened in the 1930s as Pincus and colleagues, Enzmann and Saunders, initially liberated immature rabbit oocytes from their follicles into culture media and discovered ho...

Isolated porcine pepsinogen A was used for the preparation of polyclonal rabbit and polyclonal chicken anti-pepsinogen A antibodies. Immunochemical properties of both immunoglobulin fractions were compared. The rabbit anti-serum was further purified using immobilized porcine pepsinogen A on magnetic cellulose beads and the resulting anti-pepsinogen A fraction proved to be applicable for the sep...

The efficacy of various culture systems was studied for the development of in-vitro produced Caprine embryos . For this purpose, 2 to 4 cell stage caprine embryos matured and fertilized under in vitro conditions were cultured with four culture systems (cumulus cell monolayers, oviductal cell monolayers, chick embryo and rabbit peritoneal fluid) and a control system (TCM-199 + FCS) for about 5 d...

REsPONSE oF SPERMATOZOA to freezing varies according to species. Hoagland and Pincus observed that rabbit spermatozoa could scarcely revive following immersion in liquid nitrogen after various plasmolytic pretreatment, whereas human spermatozoa remained highly active after freezing and thawing. It has been reported that rabbit spermatozoa are easily damaged by hypertonic salt solutions at tempe...