Improvements in Histological Techniques for Epoxy-Resin Embedded Bone Specimens |
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Authors: | R H Watts D Green G R Howells |
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Institution: |
a Medical Research Council, Radiobiology Unit, Harwell, Didcot, Oxon, United Kingdom |
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Abstract: | A procedure is presented in which some of the processing difficulties with fixation, embedding and cutting whole mouse bones and large bone pieces from other species are considered. The bone specimens are fixed in acetone or by a Karnovsky-formol-saline process which preserves intact endosteal surface-to-cortex layers. After fixation the bones are embedded in a hard mixture of epoxy resin to provide blocks with face sizes up to 3.5 × 3.0 cm. Mineralized sections are cut at 4 μm; demineralized at 3 μm. Sections are fastened to gelatin-subbed slides with pressure plates which produce flat, secure sections. After removal of the plastic, an unmodified Mayer's hematoxylin and a polychromatic eosin staining method is applied to demineralized sections, and a slightly modified method to mineralized sections. |
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