Multimodal Noninvasive Functional Neurophotonic Imaging of Murine Brain-Wide Sensory Responses
| Autor: | Chen, Zhenyue, Zhou, Quanyu, Deán‐Ben, Xosé Luís, Gezginer, Irmak, Ni, Ruiqing, Reiss, Michael, Shoham, Shy, Razansky, Daniel |
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| Přispěvatelé: | University of Zurich, Shoham, Shy, Razansky, Daniel |
| Rok vydání: | 2022 |
| Předmět: |
epifluorescence
neuroimaging General Chemical Engineering General Engineering General Physics and Astronomy Medicine (miscellaneous) brain imaging 610 Medicine & health 2701 Medicine (miscellaneous) Genetics and Molecular Biology (miscellaneous) 1301 Biochemistry Genetics and Molecular Biology (miscellaneous) Biochemistry 2500 General Materials Science 3100 General Physics and Astronomy functional optoacoustic tomography brain activation electric paw stimulation GCaMP6f hemodynamic response 170 Ethics 2200 General Engineering 10237 Institute of Biomedical Engineering General Materials Science 1500 General Chemical Engineering |
| Zdroj: | Advanced Science, 9 (24) |
| ISSN: | 2198-3844 |
| DOI: | 10.5167/uzh-231764 |
| Popis: | Modern optical neuroimaging approaches are expanding the ability to elucidate complex brain function. Diverse imaging contrasts enable direct observation of neural activity with functional sensors along with the induced hemodynamic responses. To date, decoupling the complex interplay of neurovascular coupling and dynamical physiological states has remained challenging when employing single-modality functional neuroimaging readings. A hybrid fluorescence optoacoustic tomography platform combined with a custom data processing pipeline based on statistical parametric mapping is devised, attaining the first noninvasive observation of simultaneous calcium and hemodynamic activation patterns using optical contrasts. Correlated changes in the oxy- and deoxygenated hemoglobin, total hemoglobin, oxygen saturation, and rapid GCaMP6f fluorescence signals are observed in response to peripheral sensory stimulation. While the concurrent epifluorescence serves to corroborate and complement the functional optoacoustic observations, the latter further aids in decoupling the rapid calcium responses from the slowly varying background in the fluorescence recordings mediated by hemodynamic changes. The hybrid imaging platform expands the capabilities of conventional neuroimaging methods to provide more comprehensive functional readings for studying neurovascular and neurometabolic coupling mechanisms and related diseases. Advanced Science, 9 (24) ISSN:2198-3844 |
| Databáze: | OpenAIRE |
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