Publication: In Vivo Imaging of Cerebral Energy Metabolism with Two-Photon Fluorescence Lifetime Microscopy of NADH
Open/View Files
Date
2013
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Yaseen, Mohammad A., Sava Sakadžić, Weicheng Wu, Wolfgang Becker, Karl A. Kasischke, and David A. Boas. 2013. In vivo imaging of cerebral energy metabolism with two-photon fluorescence lifetime microscopy of NADH. Biomedical Optics Express 4(2): 307-321.
Research Data
Abstract
Minimally invasive, specific measurement of cellular energy metabolism is crucial for understanding cerebral pathophysiology. Here, we present high-resolution, in vivo observations of autofluorescence lifetime as a biomarker of cerebral energy metabolism in exposed rat cortices. We describe a customized two-photon imaging system with time correlated single photon counting detection and specialized software for modeling multiple-component fits of fluorescence decay and monitoring their transient behaviors. In vivo cerebral NADH fluorescence suggests the presence of four distinct components, which respond differently to brief periods of anoxia and likely indicate different enzymatic formulations. Individual components show potential as indicators of specific molecular pathways involved in oxidative metabolism.
Description
Other Available Sources
Keywords
Medical optics and biotechnology, Nonlinear microscopy, Lifetime-based sensing
Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material (LAA), as set forth at Terms of Service