title: Metabolic mapping.
abstract: This unit describes a high-resolution [(3)H]2-deoxyglucose (2DG)/immunohistochemistry double labeling protocol which enables simultaneous visualization of metabolic and immunohistochemical markers (e.g., neurotransmitter-specific epitopes) in the same tissue section. This approach generates single-cell metabolic measures from large (many thousands) samples of neurons, and allows the assignment of putative neurotransmitter types to large samples of functionally assayed single neurons. Thus, it provides a unique opportunity to assay the metabolic activities of histochemically identified neural elements throughout an entire pathway. [(3)H]2DG injection and perfusion fixation of hamsters or mice is described first, followed by immunohistochemical staining of brain slices for a monoclonal antibody against glutamic acid decarboxylase-6 (GAD-6). Included are the steps for dipping and developing slides for autoradiography. An alternate protocol gives details of staining for cytochrome oxidase (CO).
authors.affiliation: SUNY-HSC at Syracuse, Syracuse, New York, USA.
authors.forename: J S
authors.initials: JS
authors.lastname: McCasland
authors.forename: G M
authors.initials: GM
authors.lastname: Graczyk
mesh_terms: D000818:Animals; D001345:Autoradiography / Q000379:methods / Q000639:trends; D001923:Brain Chemistry / Q000502:physiology*; D006224:Cricetinae; D007150:Immunohistochemistry / Q000379:methods* / Q000639:trends; D008647:Mesocricetus; D053858:Metabolic Networks and Pathways / Q000502:physiology*; D051379:Mice