Abstract

The broad, long term objective of the proposed research is the development of Optical Doppler Tomography (ODT) for application in the clinical management of patients with PWS by providing a semi-quantitative evaluation of the efficiency of pulsed laser therapy. If partial replenishment of flow occurs immediately or shortly after pulsed laser exposure, indicative or reperfusion due to in inadequate blood vessel injury, the PWS can be retreated. This process is continued until the measured Doppler shift is zero due to a permanent reduction in blood flow after laser exposure, indicative of irreversible microthrombus formation in the PWS vessels.
The specific aims of this proposal are to 1)determine the importance of Doppler shift, scattering and absorption on the ODT signal amplitude and frequency; 2) apply ODT to characterize blood flow at discrete spatial locations in either the superficial or deep skin microcirculation in preclinical animal model representative of PW S; and 3) demonstrate the practical application of the technique to the clinical management of patients with PWS undergoing laser therapy.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001192-21
Application #
6308195
Study Section
Project Start
2000-04-01
Project End
2001-03-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
21
Fiscal Year
2000
Total Cost
$24,634
Indirect Cost

  Institution

Name
University of California Irvine
Department
Type
DUNS #
161202122
City
Irvine
State
CA
Country
United States
Zip Code
92697

  Publications

Paugh, Jerry R; Alfonso-Garcia, Alba; Nguyen, Andrew Loc et al. (2018) Characterization of expressed human meibum using hyperspectral stimulated Raman scattering microscopy. Ocul Surf :
Verdel, Nina; Lentsch, Griffin; Balu, Mihaela et al. (2018) Noninvasive assessment of skin structure by combined photothermal radiometry and optical spectroscopy: coregistration with multiphoton microscopy. Appl Opt 57:D117-D122
Friedman, Jacob E; Dobrinskikh, Evgenia; Alfonso-Garcia, Alba et al. (2018) Pyrroloquinoline quinone prevents developmental programming of microbial dysbiosis and macrophage polarization to attenuate liver fibrosis in offspring of obese mice. Hepatol Commun 2:313-328
Kennedy, Gordon T; Lentsch, Griffin R; Trieu, Brandon et al. (2017) Solid tissue simulating phantoms having absorption at 970 nm for diffuse optics. J Biomed Opt 22:76013
Takesh, Thair; Sargsyan, Anik; Lee, Matthew et al. (2017) Evaluating the Whitening and Microstructural Effects of a Novel Whitening Strip on Porcelain and Composite Dental Materials. Dentistry (Sunnyvale) 7:
Jonscher, Karen R; Stewart, Michael S; Alfonso-Garcia, Alba et al. (2017) Early PQQ supplementation has persistent long-term protective effects on developmental programming of hepatic lipotoxicity and inflammation in obese mice. FASEB J 31:1434-1448
Alfonso-García, Alba; Paugh, Jerry; Farid, Marjan et al. (2017) A machine learning framework to analyze hyperspectral stimulated Raman scattering microscopy images of expressed human meibum. J Raman Spectrosc 48:803-812
Takesh, Thair; Sargsyan, Anik; Anbarani, Afarin et al. (2017) Effects of a Novel Whitening Formulation on Dental Enamel. Dentistry (Sunnyvale) 7:
Alfonso-García, Alba; Smith, Tim D; Datta, Rupsa et al. (2016) Label-free identification of macrophage phenotype by fluorescence lifetime imaging microscopy. J Biomed Opt 21:46005
Prince, Richard C; Frontiera, Renee R; Potma, Eric O (2016) Stimulated Raman Scattering: From Bulk to Nano. Chem Rev :

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