METHOD TO DETERMINE STATE OF A CELL EXCHANGING METABOLITES WITH A FLUID MEDIUM BY ANALYZING THE METABOLITES IN THE FLUID MEDIUM

Abstract
The present invention relates to a method for determining the ideal time for and outcome of reproductive health procedures including in vitro fertilization by establishing a correlation between the successful outcome of said procedure and the spectra of a body fluid obtained using a chosen analytical modality for a population of patients, acquiring for a patient a spectrum of the body fluid of the patient using said chosen modality.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the present invention will become apparent from the following detailed description, taken in combination with the appended drawings, in which:



FIG. 1 is a schematic drawing of an optical oxidative stress measurement device having a 50 μL sample cell with a 1 cm path length supplied with light from a broadband Tungsten Halogen lamp via a first optical fiber, a short wavelength near infrared (SWNIR) spectrophotometer coupled to an opposite end of the sample cell via a second optical fiber for detecting CW intensity in the 600 nm to 1100 nm range, and a computer connected to the spectrophotometer for recording and analyzing the spectra.



FIG. 2 is graph showing absorption levels from a variety of molecular species in the 600 to 1000 nm wavelength range.



FIG. 3 shows a Raman spectra of 20 IVF embryo culture media samples.



FIG. 4 shows mean Raman spectra with Standard Deviation.



FIG. 5 shows spectra for viable samples.



FIG. 6 shows cross validation.



FIG. 7 is a graph of metabolomic signatures of the oxidative stress constituents in the developing embryo obtained using capillary electrophoresis with ultraviolet optical detection which identifies nutrient and metabolite fractions of the media.


Claims
  • 1. A method to determine state of a cell exchanging metabolites with a fluid medium which comprises: acquiring for at least one cell a spectrum of at least one metabolite in said fluid medium using a chosen analytical modality;generating probability data for the at least one cell using the acquired spectrum and an established correlation between the state of at least one cell and the spectra of a metabolite in a fluid medium obtained using the chosen analytical modality for a population of cells.
  • 2. The method of claim 1, wherein said analytical modality is optical spectroscopy.
  • 3. The method of claim 2, wherein said analytical modality is optical Raman scattering.
  • 4. The method of claim 2, wherein said analytical modality is optical fluorescence.
  • 5. The method of claim 2, wherein said optical spectrum is short wavelength near infrared.
  • 6. The method of claim 2, wherein said optical spectrum provides information about oxidative stress of said fluid medium.
  • 7. The method of claim 1, wherein said chosen analytical modality is NMR.
  • 8. The method of claim 1, wherein said at least one cell is an oocyte.
  • 9. The method of claim 1, wherein said at least one cell is a spermatozoid.
  • 10. The method of claim 1, wherein said at least one cell is an embryo.
  • 11. The method of claim 1, wherein said at least one cell is part of a uterine wall.
  • 12. The method of claim 8, wherein said cell state is oocyte viability.
  • 13. The method of claim 9, wherein said cell state is sperm viability.
  • 14. The method of claim 10, wherein said cell state is embryo viability.
  • 15. The method of claim 14, wherein said cell state is embryo viability, said embryo being in a frozen state.
  • 16. The method of claim 11, wherein said cell state is uterine viability for embryo implantation.
  • 17. The method of claim 1, wherein said cell state correlates to diagnosis of cancer of endometrium, breast, uterus, ovary, testis, prostate, or other organ system.
  • 18. The method of claim 1, wherein said at least one cell is a stem cell.
  • 19. A method for sustaining or growing one or more cells in a culture medium, the method comprising: adjusting the culture medium using a state of the cells determined from a spectrum of the culture medium obtained using a chosen analytical modality.
  • 20. The method of claim 19, wherein said spectrum contains information related to oxidative stress of at least some components of said culture medium.
  • 21. An apparatus for controlling culture of one or more cells growing in vitro in a culture medium, the apparatus comprising: a spectral acquisition device for acquiring a spectrum of said culture medium;a database of correlation data relating spectral data to a state of said cells;a state determination processor generating data representing said state using said correlation data and said spectrum;a culture medium controller generating control signals for effecting an adjustment in said culture medium in response to said data representing said state.
  • 22. The apparatus of claim 21, wherein said adjustment is effected external to said culture medium.
  • 23. The apparatus of claim 22, wherein said adjustment is an adjustment in ambient temperature or gas composition.
  • 24. The apparatus of claim 21, wherein said adjustment is an addition of a substance to said culture medium.
  • 25. The apparatus of claim 21, wherein said adjustment is a substitution of said culture medium.
  • 26. The apparatus of claim 21, wherein said spectrum contains information regarding oxidative stress of at least one component of said culture medium.
  • 27. The apparatus of claim 26, wherein said spectral acquisition device is optical.
  • 28. The apparatus of claim 27, wherein said spectral acquisition device operates in the near infrared range.
Provisional Applications (1)
Number Date Country
60757242 Jan 2006 US