The Influence of Short-Day Photoperiods on Bone Composition of Hamsters: a Raman Spectroscopic Investigation
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Jing Shen
Abstract
Biological rhythms, which regulate the biological cycles of life, are of great interest in biomedicine. The effect of biological rhythms on bone is controversial at the moment. Raman spectroscopy was applied to assess the bone compositional information of hamsters under different photoperiods, designed as long day photoperiod of 16 h light and 8 h dark (LD, 16L : 8D) and short day photoperiod of 8 h light and 16 h dark (SD, 8L : 16D). After three months under such well-defined conditions, the hamsters in the two groups exhibited differences in body weight, fur color and testis size. In addition, for the first time to our knowledge bone compositional variations were observed in both mineral constituents and collagen secondary structures in hamsters conditioned under the different photoperiods. The collagen secondary structure in the SD hamsters was characterized by a higher ratio of mature intra-fibril cross-links indicating a more stable form of collagen. It is hypothesized that increased bone turnover rate and resorption led to the alteration of collagen cross-links in the SD group.
© by Oldenbourg Wissenschaftsverlag, München, Germany
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- The Influence of Short-Day Photoperiods on Bone Composition of Hamsters: a Raman Spectroscopic Investigation
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Articles in the same Issue
- Preface – The Many Facets of Raman Spectroscopy
- Vibrational Spectroscopic Studies of Germanium-High Bismuthate Glasses and Vitroceramics
- SERS Study and DFT Simulation of the Interaction of Cytosine with Copper Electrode
- Precise Analysis of Small Wavenumber Shift of Pyridine on Dilution with H2O and D2O Using RDS Technique
- Deep UV Resonance Raman Spectroscopy with a Tunable 4 kHz Nanosecond Solid-State Laser and a 1 mL Circulating Free-Flow System
- Interference Effects in Vibronic 2D-Spectra of Diatomic Molecules
- Threshold Photoelectron Spectrum of Isolated NTCDA
- Study of Hydrogen Bonding Patterns of a Pharmaceutically Active Drug Molecule Paraldehyde: a Raman and DFT Study
- Femtosecond Coherence Spectroscopic Study of the Onset of Chemical Denaturation of Myoglobin upon Addition of Minor Amounts of Urea
- Checking and Improving Calibration of Raman Spectra using Chemometric Approaches
- The Influence of Short-Day Photoperiods on Bone Composition of Hamsters: a Raman Spectroscopic Investigation
- Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy (SHINERS) Based on Gold-Core Silica-Shell Nanorods
- Fourier Transform Raman and DFT Study of Blue Shift C–H Stretching Vibration of Diazines on Hydrogen Bond Formation
