عنوان

The Blood-Brain Barrier, Amino Acids and Peptides

(Number (ISBN

9400922299

(Number (ISBN

9789400922297

Number

b592813

Title Proper

The Blood-Brain Barrier, Amino Acids and Peptides

General Material Designation

[Book]

First Statement of Responsibility

by M.B. Segal, B.V. Zlokovic.

Place of Publication, Distribution, etc.

Dordrecht

Name of Publisher, Distributor, etc.

Springer Netherlands

Date of Publication, Distribution, etc.

1990

Specific Material Designation and Extent of Item

(VI, 202 pages)

Text of Note

1 Introduction --; 2 Methods for the study of the functions of the blood-brain barrier --; 3 Amino acids and the blood-brain barrier --; 4 The role of peptides in the brain --; 5 Brain peptides and peptidergic pathways --; 6 The interaction of small peptides with the various cellular interfaces of the blood-brain barrier --; 7 Transport of large peptides and proteins across the blood-brain barrier --; 8 Disease states and the blood-brain barrier related to peptides --; 9 Immunological and other aspects of the blood-brain barrier --; 10 Strategies for peptide delivery to the brain.

Text of Note

Definition of the barrier The interstitial fluid (rSF) of the brain is separated from the blood by the blood-brain barrier (BBB). This barrier must not be thought of as a single entity or as an absolute restriction to all molecules, but as a multiple structure located at several sites within the brain. The first of these interfaces is located at the endothelium of the brain capillaries. Secondly there is a potential site for interchange on the outer linings of the brain between the dura and the arachnoid membranes. Thirdly, there are the choroid plexuses and the cerebrospinal fluid (CSF) which is in contact with the very permeable internal ependymal lining of the brain (Figure 1. 1). Finally there are areas of the brain which lack a blood-brain barrier. These areas constitute the circumventricu­ lar organs and have leaky capillaries with a barrier at the ependyma which limits the spread of molecules from those regions (Figure 1. 2). Each of these BBB sites has its own characteristic permeability and transport functions. We will now consider the properties of each of these barrier sites between the blood and the brain. THE CEREBRAL CAPILLARY ENDOTHELIUM Morphology This interface has both the largest surface area and the shortest path length between the blood and the brain rSF. The cerebral capillaries, which at first sight seem little different from the rest of the systemic circulation, are in fact unique to the brain.

Amino acids.

Blood-brain barrier.

Peptides.

Class number

Book number

by M.B. Segal, B.V. Zlokovic.

B V Zlokovic

M B Segal

Electronic name

[Book]

Y