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  • Title: Microphotometrical quantification of protein thiols in morphologically intact cells of the cervical epithelium. I. Basic results with superficial cells of healthy women.
    Author: Nöhammer G, Schauenstein E, Bajardi F, Unger-Ullmann CL.
    Journal: Acta Cytol; 1977; 21(2):341-4. PubMed ID: 266351.
    Abstract:
    The investigations are based on Esterbauer's results according to which the staining of protein thiols (PSH) with DDD-Fast Blue B (Barrnett and Seligman) is of a quantitative order. Consequently, the PSH of the nucleus and the cytoplasm of superficial cells of the ectocervical epithelium of healthy women are determined to 0.3 and 4.1 X 10(-14) moles, respectively. After it has been found that the mean absorption spectrum between 310 and 238 nm of the pure proteins, the extinction at 278 nm of a cytoplasmic area (300 to 400 micron2) of unstained cells is taken as a first measure for the cytoplasmic protein content which is calculated to approximately 5 X 10(-18) moles per micron2 whereas the PSH content results to 1.9 X 10(-17) moles per micron2. From this value results a very plausible number of 3.6 SH per 10(5) g of cytoplasmic proteins.
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