Related Experiment Video
Updated: May 24, 2026
11:08
The Use of Gas Chromatography to Analyze Compositional Changes of Fatty Acids in Rat Liver Tissue during Pregnancy
Published on: March 13, 2014
Detecting biochemical changes in the rodent cervix during pregnancy using Raman spectroscopy
Elizabeth Vargis1, Naoko Brown, Kent Williams
1Department of Biomedical Engineering, Vanderbilt University, VU Station B, Box 351631, Nashville, TN 37235, USA.
Annals of Biomedical Engineering
|March 14, 2012
Summary
Raman spectroscopy (RS) non-invasively monitors mouse cervical changes during pregnancy. This optical method detects biochemical and structural shifts, aiding in understanding pregnancy progression and potentially predicting preterm birth.
Area of Science:
- Biomedical Optics
- Gynecology
- Translational Medicine
Background:
- Cervical changes during pregnancy are critical for labor and delivery.
- Non-invasive methods are needed to monitor these dynamic tissue alterations.
- Raman spectroscopy (RS) offers a label-free optical approach to probe tissue biochemistry.
Purpose of the Study:
- To evaluate the feasibility of in vivo Raman spectroscopy (RS) for studying mouse cervix during pregnancy.
- To correlate RS data with structural and biochemical changes in the cervix.
- To explore RS's potential for predicting pregnancy outcomes, including preterm delivery.
Main Methods:
- Acquisition of Raman spectra from the mouse cervix before, during, and after a 19-day gestation period.
- Excision of cervices for ex vivo structural testing and histological analysis (collagen, smooth muscle).
- Analysis of spectral changes related to biochemical components like fatty acids and collagen organization.
Main Results:
- Significant alterations in Raman spectral peaks associated with fatty acid content and collagen organization were observed.
- These spectral changes correlated with increased cervical compliance and collagen disorganization.
- RS successfully detected biochemical and structural modifications indicative of cervical ripening.
Conclusions:
- Non-invasive Raman spectroscopy (RS) is a viable tool for in vivo monitoring of cervical changes during pregnancy.
- RS can detect biochemical and structural remodeling of the cervix associated with labor preparation.
- This technique holds promise for early prediction of preterm delivery and guiding interventions.
More Related Videos
Related Concept Videos
01:20Raman Spectroscopy: Overview
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
01:26Raman Spectroscopy Instrumentation: Overview
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...