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Cited by 258

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Simultaneous two-photon imaging of oxygen and blood flow in deep cerebral vessels

Open access
Lecoq, Jérôme, Parpaleix, Alexandre, Roussakis, Emmanuel, Ducros, Mathieu, Houssen, Yannick Goulam, Vinogradov, Sergei A, Charpak, Serge·2011·Nature Medicine

Abstract

Uncovering principles that regulate energy metabolism in the brain requires mapping of partial pressure of oxygen (PO2) and blood flow with high spatial and temporal resolution. Using two-photon phosphorescence lifetime microscopy (2PLM) and the oxygen probe PtP-C343, we show that PO2 can be accurately measured in the brain at depths up to 300 μm with micron-scale resolution. In addition, 2PLM allowed simultaneous measurements of blood flow and of PO2 in capillaries with less than one-second temporal resolution. Using this approach, we detected erythrocyte-associated transients (EATs) in oxygen in the rat olfactory bulb and showed the existence of diffusion-based arterio-venous shunts. Sensory stimulation evoked functional hyperemia, accompanied by an increase in PO2 in capillaries and by a biphasic PO2 response in the neuropil, consisting of an 'initial dip' and a rebound. 2PLM of PO2 opens new avenues for studies of brain metabolism and blood flow regulation.

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Crossref · 10.1038/nm.2394

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Metadata

Authors
Lecoq, J., Parpaleix, A., Roussakis, E., Ducros, M., Houssen, Y. G., Vinogradov, S. A., & Charpak, S.
Venue
Nature Medicine
Published
2011-06-05
Volume
17
Issue
7
Pages
893-898
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2060172358
Cited by
258
References
3
FWCI
13.36
Type
journal article
Language
en
Open access
green

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