Journal of neurochemistry, 1997-07, Vol.69 (1), p.84-94
1997
Details
- Autor(en) / Beteiligte
- Titel
- Expression of the Na+‐d‐Glucose Cotransporter SGLT1 in Neurons
- Ist Teil von
- Journal of neurochemistry, 1997-07, Vol.69 (1), p.84-94
- Ort / Verlag
- Oxford, UK: Blackwell Science Ltd
- Erscheinungsjahr
- 1997
- Link zum Volltext
- Quelle
- EZB-FREE-00999 freely available EZB journals
- Beschreibungen/Notizen
- : In brains of the rabbit, pig, and human, expression of the high‐affinity Na+‐d‐glucose cotransporter SGLT1 and of the protein RS1, which alters the activity of SGLT1, was demonstrated. In situ hybridization showed that SGLT1 and RS1 are transcribed in pyramidal cells of brain cortex and hippocampus and in Purkinje cells of cerebellum. In neurons of pig brain SGLT1 protein was demonstrated by western blotting with synaptosomal membranes and by immunohistochemistry, which showed SGLT1 in pyramidal and Purkinje cells. To test whether SGLT1 in neurons may be activated during increased d‐glucose consumption, an epileptic seizure was induced in rat brain, and the uptake of specific nonmetabolized substrates of SGLT1 {[14C]methyl‐α‐d‐glucopyranoside ([14C]AMG)} and of Na+‐independent transporters {2‐deoxy‐d‐[14C]glucose([14C]2‐DG)} was analyzed by autoradiography. During the seizure the uptake of AMG and 2‐DG was increased in the focus. Within two hours after the seizure 2‐DG uptake in the focus returned to normal. In contrast, the AMG uptake in the focus area was still increased 1 day later. The data show that the high‐affinity Na+‐d‐glucose cotransporter SGLT1 is expressed in neurons and can be up‐regulated.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0022-3042eISSN: 1471-4159DOI: 10.1046/j.1471-4159.1997.69010084.xTitel-ID: cdi_proquest_miscellaneous_79086135
- Format
- –
- Schlagworte
- Animals, Biochemistry and metabolism, Biological and medical sciences, Blotting, Western, Brain Chemistry - physiology, Carbon Radioisotopes, Central nervous system, Deoxyglucose, DNA, Complementary - analysis, DNA, Complementary - isolation & purification, Dogs, Epilepsy - diagnosis, Epilepsy - metabolism, Epilepsy - physiopathology, Epileptic seizure, Fundamental and applied biological sciences. Psychology, Gene Expression - physiology, Glucose - metabolism, Glucose uptake, Humans, Immunohistochemistry, In Situ Hybridization, Membrane Glycoproteins - analysis, Membrane Glycoproteins - genetics, Membrane Glycoproteins - metabolism, Molecular Sequence Data, Monosaccharide Transport Proteins - analysis, Monosaccharide Transport Proteins - genetics, Monosaccharide Transport Proteins - metabolism, Neuroglia - chemistry, Neuroglia - metabolism, Neuroglia - physiology, Neurons, Neurons - chemistry, Neurons - metabolism, Neurons - physiology, Rabbits, Rats, Regulation, Sequence Analysis, DNA, Sodium - metabolism, Sodium glucose cotransport, Sodium-Glucose Transporter 1, Swine, Transcription, Genetic - physiology, Up-Regulation - physiology, Vertebrates: nervous system and sense organs