Characterization of collagen formation surrounding osteocytes using second and third harmonic generation

Characterization of collagen formation surrounding osteocytes using second and third harmonic generation
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使用二次和三次谐波生成表征骨细胞周围的胶原形成

DOI:
10.1117/12.2510814
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发表时间:
2019
期刊:
Multimodal Biomedical Imaging XIV
影响因子:
--
通讯作者:
Mortensen, Luke J.
Mortensen, Luke J.
中科院分区:
--
文献类型:
--
作者:
Pendleton, Emily G.;Tehrani, Kayvan F.;Barrow, Ruth P.;Mortensen, Luke J.

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超过5400万美国人患有代谢性骨骼疾病或处于高风险之中;骨骼强度紊乱使个体骨骼脆弱和残疾。评估这些疾病的金标准是双能X射线吸收法,但这只能测量矿物质含量。然而,这些疾病会影响胶原蛋白和矿物质的完整性,这会阻碍骨骼储存激素、蛋白聚糖和糖蛋白的能力,而这些对体内平衡至关重要。我们已经建立了二次谐波产生(SHG)偏振测定,描述骨胶原组织。为了进一步我们的分析,我们提出了多模式光学评价骨质量与三次谐波产生(THG)来衡量骨细胞树突状进程。这种分析方法可用于评估骨的疾病状态和对治疗的反应。
More than 54 million Americans have or are at high risk of developing a metabolic bone disease; disorders of bone strength that leave individuals with fragile bones and disabilities. The gold standard to evaluate these diseases is dual energy x-ray absorptiometry, but this only measures mineral content. These diseases, however, impact collagen and mineral integrity which impede the bone’s ability to store hormones, proteoglycans, and glycoproteins imperative to homeostasis. We have established a second harmonic generation (SHG) polarimetric assay that describes bone collagen organization. To further our analysis, we propose multimodal optical evaluation of bone quality with third harmonic generation (THG) to measure osteocyte dendritic processes. This method of analysis could be used to evaluate the disease state of bone and response to therapy.
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