The fluorescence lifetime of lipofuscin granule fluorophores contained in the retinal pigment epithelium cells from human cadaver eyes in normal state and in the case of visualized pathology

Doklady Biochemistry and Biophysics - Tập 474 - Trang 239-243 - 2017
M. A. Yakovleva1, T. B. Feldman1,2, P. M. Arbukhanova3, S. A. Borzenok3, V. A. Kuzmin1, M. A. Ostrovsky1,2
1Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
2Biological Faculty, Moscow State University, Moscow, Russia
3Fedorov Eye Microsurgery Research and Technology Complex, Ministry of Health of the Russian Federation, Moscow, Russia

Tóm tắt

A comparative analysis of fluorescence lifetime of lipofuscin granule fluorophores contained in the retinal pigment epithelium cells from human cadaver eyes in normal state and in the case of visualized pathology was carried out. Measurements of fluorescence lifetimes of bis-retinoids and their photooxidation and photodegradation products were carried out using the method of counting time-correlated photons. Comparative analysis showed that, in the case of visualized pathology, the contribution of photooxidation and photodegradation products of bis-retinoids to the total fluorescence of the retinal pigment epithelium cell suspension increases in comparison with the norm.

Tài liệu tham khảo

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