DEA 3.0 System: Dogs may have a DEA 3 system of blood type, if their blood has two antigens, DEA 3.0 and DEA Null. This is a rare type of blood and occurs in only in 5 â 6% of dogs. The most common breed with a DEA 3.0 positive type blood are grey hounds, in which 23% of all population is considered positive. If the dog is incompatible for this blood type and is transfused, erythrocytes or blood cells are usually replaced in 3 â 5 days, automatically.
Executive Summary. 1  The bloodâbrain barrier (BBB) is a significant obstacle to therapeutic delivery for CNS disorders. Among various strategies, nanobiotechnology plays an important role in facilitating drug delivery across the BBB. 2  Desirable characteristics of the ideal method of therapeutic delivery across the BBB are described in this article.
First of all as I am sure you know the brain is protected by what is known as the Blood Brain Barrier (BBB) and what this BBB does is help protect the brain from foreign substances that may be harmful to it such as low lipid fat soluble molecules. But glycogen is allowed to pass through the BBB to help fuel the brain.