alexa Diffuse optical monitoring of repeated cerebral ischemia in mice.
Medicine

Medicine

Anatomy & Physiology: Current Research

Author(s): Shang Y, Chen L, Toborek M, Yu G

Abstract Share this page

Abstract Occlusions of bilateral common carotid arteries (bi-CCA) in mice are popular models for the investigation of transient forebrain ischemia. Currently available technologies for assessing cerebral blood flow (CBF) and oxygenation in ischemic mice have limitations. This study tests a novel near-infrared diffuse correlation spectroscopy (DCS) flow-oximeter for monitoring both CBF and cerebral oxygenation in mice undergoing repeated transient forebrain ischemia. Concurrent flow measurements in a mouse brain were first conducted for validation purposes; DCS measurement was found highly correlated with laser Doppler measurement (R2 = 0.94) and less susceptible to motion artifacts. With unique designs in experimental protocols and fiber-optic probes, we have demonstrated high sensitivities of DCS flow-oximeter in detecting the regional heterogeneity of CBF responses in different hemispheres and global changes of both CBF and cerebral oxygenation across two hemispheres in mice undergoing repeated 2-minute bi-CCA occlusions over 5 days. More than 75\% CBF reductions were found during bi-CCA occlusions in mice, which may be considered as a threshold to determine a successful bi-CCA occlusion. With the progress of repeated 2-minute bi-CCA occlusions over days, a longitudinal decline in the magnitudes of CBF reduction was observed, indicating the brain adaptation to cerebral ischemia through the repeated preconditioning.
This article was published in Opt Express and referenced in Anatomy & Physiology: Current Research

Relevant Expert PPTs

Relevant Speaker PPTs

  • Seema Narayan
    A comparative study of the link between real exchange rate of ASEAN countries and fossil fuel prices
    PDF Version
  • Navinchandra G. Ashar
    Comparative study of techno-economic evaluation of the production of liquid Sulphur Di Oxide
    PDF Version
  • Wei Gong
    Wei Gong-Huazhong-University-of-Science-and-Technology-China-Probabilistic-seismic-hazard-assessment-for-the-pseudo-negative-stiffness-control-of- a-steel-base-isolated-building-A-comparative-study-
    PPT Version | PDF Version
  • Abdullah Altin
    Abdullah-Altin-Van-Yuzuncu-Yıl-University-Turkey-A-comparative-study-on-optimization-of-machining-parameters-by-turning-nickel-based-super-alloys-according-to-taguchi-method
    PPT Version | PDF Version
  • Nahla A El-Wakil
    Comparative study of enzymatic and chemical denaturation of wheat gluten and their cellulosic nanocomposites
    PPT Version | PDF Version
  • Krzysztof Wieczerzak
    A comparative transcriptome provides candidate genes for determination the cause of males infertility.
    PPT Version | PDF Version
  • Flavia Secco Tavares de Souza
    A Comparative Study Among Elective Conventional Surgery, Urgency/Emergency Conventional Approaching and Elective Videolaparoscopic Surgery on the Treatment of Hospitalized Patients at First Surgeric Clinic of Federal Hospital of Bonsucesso with a Diagnostic of Colorectal adenocarcinoma, between January 2010 and December 2012
    PPT Version | PDF Version
  • Rajendra K Ray
    Comparative Study And Improvement Of Shallow-Water Models
    PPT Version | PDF Version
  • Nisreen E. Mahmoud
    Parasitological and comparative pathological studies on monogenean infestation of cultured sea bream (Sparus aurata, Sparidae) in Egypt.
    PPT Version | PDF Version

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords