Abstract

The aim of this project it to investigate the fundamental time-resolved fluorescence processes induced by excimer lasers in order to develop quantitative criteria for reliable tissue characterization. Our approach involves time-resolved laser-induced fluorescence measurements for the purpose of identification of spectro-temporal patterns characteristic of different fluorophores, which can be used as """"""""signatures"""""""" for unique and unambiguous characterization of various fluorophores (collagen, elastin, NAD and NADH). During this grant year, we developed a novel methodology/technology of laser-induced fluorescence attenuation using multiple optic fibers as a means of reliable on-line measurements of ischemia and hypoxia. The initial results have demonstrated the feasibility of such measurements, creating the prospect of useful applications in many surgical and diagnostic procedures.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001861-15
Application #
6205817
Study Section
Project Start
1999-09-01
Project End
2000-08-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
15
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
University of Southern California
Department
Type
DUNS #
041544081
City
Los Angeles
State
CA
Country
United States
Zip Code
90089

  Publications

Song, Dong; Wang, Haonan; Tu, Catherine Y et al. (2013) Identification of sparse neural functional connectivity using penalized likelihood estimation and basis functions. J Comput Neurosci 35:335-57
Hoppenbrouwers, Toke; Oliveira, Flavia; Sandarupa, Stanislaus et al. (2012) The development of the circadian heart rate rhythm (CHR) in Asian infants. Early Hum Dev 88:555-61
Wang, Xiaoning; Schumitzky, Alan; D'Argenio, David Z (2007) Nonlinear Random Effects Mixture Models: Maximum Likelihood Estimation via the EM Algorithm. Comput Stat Data Anal 51:6614-6623
Gholmieh, Ghassan; Courellis, Spiros; Marmarelis, Vasilis et al. (2007) Nonlinear dynamic model of CA1 short-term plasticity using random impulse train stimulation. Ann Biomed Eng 35:847-57
Gholmieh, Ghassan; Courellis, Spiros; Dimoka, Angelika et al. (2004) An algorithm for real-time extraction of population EPSP and population spike amplitudes from hippocampal field potential recordings. J Neurosci Methods 136:111-21
Ashjian, Peter; Elbarbary, Amir; Zuk, Patricia et al. (2004) Noninvasive in situ evaluation of osteogenic differentiation by time-resolved laser-induced fluorescence spectroscopy. Tissue Eng 10:411-20
Blasi, Anna; Jo, Javier; Valladares, Edwin et al. (2003) Cardiovascular variability after arousal from sleep: time-varying spectral analysis. J Appl Physiol 95:1394-404
Jo, Javier A; Blasi, Anna; Valladares, Edwin et al. (2003) Model-based assessment of autonomic control in obstructive sleep apnea syndrome during sleep. Am J Respir Crit Care Med 167:128-36
Belozeroff, Vasily; Berry, Richard B; Khoo, Michael C K (2003) Model-based assessment of autonomic control in obstructive sleep apnea syndrome. Sleep 26:65-73
Bading, James R; Yoo, Paul B; Fissekis, John D et al. (2003) Kinetic modeling of 5-fluorouracil anabolism in colorectal adenocarcinoma: a positron emission tomography study in rats. Cancer Res 63:3667-74

Showing the most recent 10 out of 84 publications