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Matches in SemOpenAlex for { <https://semopenalex.org/work/W1979217445> ?p ?o ?g. }

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• W1979217445 abstract "Fluorescence microscopy can be a useful tool in the early detection of pathological changes in the stereocilia of outer hair cells which have undergone acoustic overstimulation. Fluorescent phalloidin, a highly specific F-actin stain, can be used to label F-actin in stereocilia. In this study, phalloidin label is used to determine quantitative changes of F-actin in the stereocilia of guinea pigs exposed to loud noise (117 dB; octave band noise, centered at 1 kHz; 4 h). Reliably determining three-dimensional (3-D) structural changes in stereocilia is a challenging problem in optical microscopy since stereocilia diameter is close to the optical resolution limit. In order to alleviate the problem, a computational 3-D microscopy technique is used (Avinash et al., 1992). Whole-mounts of the cochlear second and third turns were examined in a Leitz Orthoplan microscope through a Leitz Plan Apo objective lens (100 ×; 1.32 N.A.; 1700.17). Images were acquired with a charge-coupled device camera where the focus was shifted in 0.2 μm steps using a piezoelectric translator. Images were processed with the appropriate point spread function of the optical system. Analysis of control cochleas indicate that our technique can resolve single stereocilia and distinguish between various intensities of label along each stereocilia. In noise-exposed cochleas, our data show length and intensity changes in the phalloidin label. These results suggest that both depolymerization and polymerization of F-actin can occur in stereocilia of outer hair cells after acoustic overstimulation. Our findings demonstrate the applicability of computational 3-D microscopy to quantitative and qualitative analysis of stereocilia." @default.
• W1979217445 created "2016-06-24" @default.
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• W1979217445 date "1993-05-01" @default.
• W1979217445 modified "2023-09-23" @default.
• W1979217445 title "3-D analysis of F-actin in stereocilia of cochlear hair cells after loud noise exposure" @default.
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• W1979217445 doi "https://doi.org/10.1016/0378-5955(93)90241-r" @default.
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