首页> 外文期刊>Journal of Photochemistry and Photobiology, B. Biology: Official Journal of the European Society for Photobiology >In vivo molecular evaluation of guinea pig skin incisions healing after surgical suture and laser tissue welding using Raman spectroscopy
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In vivo molecular evaluation of guinea pig skin incisions healing after surgical suture and laser tissue welding using Raman spectroscopy

机译:使用拉曼光谱法对外科缝合线和激光组织焊接后豚鼠皮肤切口愈合的体内分子评估

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摘要

The healing process in guinea pig skin following surgical incisions was evaluated at the molecular level, in vivo, by the use of Raman spectroscopy. After the incisions were closed either by suturing or by laser tissue welding (LTW), differences in the respective Raman spectra were identified. The study determined that the ratio of the Raman peaks of the amide III (1247 cm~(-1)) band to a peak at 1326 cm~(-1) (the superposition of elastin and keratin bands) can be used to evaluate the progression of wound healing. Conformational changes in the amide 1 band (1633-1682 cm~(-1)) and spectrum changes in the range of 1450-1520 cm~(-1) were observed in LTW and sutured skin. The stages of the healing process of the guinea pig skin following LTW and suturing were evaluated by Raman spectroscopy, using histopathology as the gold standard. LTW skin demonstrated better healing than sutured skin, exhibiting minimal hyperkeratosis, minimal collagen deposition, near-normal surface contour, and minimal loss of dermal appendages. A wavelet decomposition-reconstruction baseline correction algorithm was employed to remove the fluorescence wing from the Raman spectra.
机译:通过使用拉曼光谱在体内在分子水平上评价了手术切口后豚鼠皮肤的愈合过程。通过缝合或通过激光组织焊接(LTW)闭合切口后,可以确定相应的拉曼光谱差异。研究确定酰胺III(1247 cm〜(-1))谱带的拉曼峰与1326 cm〜(-1)的峰(弹性蛋白和角蛋白谱带的叠加)之比可用于评估伤口愈合的过程。在LTW和缝合皮肤中观察到酰胺1带的构象变化(1633-1682 cm〜(-1))和光谱变化在1450-1520 cm〜(-1)。用组织病理学作为金标准,通过拉曼光谱法评估LTW和缝合后豚鼠皮肤的愈合过程的阶段。 LTW皮肤比缝合的皮肤表现出更好的愈合,表现出最小的角化过度,最小的胶原蛋白沉积,近乎正常的表面轮廓以及最小的皮肤附件损失。采用小波分解-重建基线校正算法从拉曼光谱中去除荧光翅膀。

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