Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Farrell, C. L. Pardridge, W. M. |
| Description | Author Affiliation: Farrell CL ( Department of Medicine, University of California, Los Angeles School of Medicine 90024-1682.); |
| Abstract | It is generally assumed that there is symmetric distribution of the glucose transporter on the lumenal and ablumenal membranes of the brain capillary endothelial cell that makes up the blood-brain barrier (BBB) in vivo. However, the presence of brain endothelial tight junctions allows for asymmetric distribution of BBB plasma membrane proteins. Glucose transporter isoform 1 (GLUT-1), the principal glucose transporter at the BBB, was assessed in rat brain in the present studies using immunogold electron microscopy. The distribution of the immunoreactive GLUT-1 protein on the endothelial lumenal membrane, the ablumenal membrane, and the cytoplasmic compartment was 12%, 48%, and 40%, respectively, and no significant immunolabeling of the neuropil was measurable. These studies suggest (i) that GLUT-1 is asymmetrically distributed on the BBB plasma membrane with an approximately 4-fold greater abundance on the ablumenal membrane as compared to the lumenal membrane; (ii) that approximately 40% of the endothelial glucose transporter protein is contained within the cytoplasmic space, which provides a mechanism for rapid up-regulation of the transporter by altered distribution of transporter between cytoplasmic and plasma membrane compartments; and (iii) that no significant labeling of neuropil is found with antisera directed against the GLUT-1 protein. These studies also suggest mechanisms of regulation of glucose transport from blood to brain that involve differential distribution of the BBB glucose transporter in subcellular compartments of brain capillary endothelial cells. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 13 |
| Volume Number | 88 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1991-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Blood-Brain Barrier Brain Metabolism Endothelium, Vascular Monosaccharide Transport Proteins Animals Ultrastructure Cell Compartmentation Cell Membrane Immunohistochemistry Microscopy, Electron Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|