PubMed · 713980
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D R White, R J Martin, R M Witt, M E Masterson. Epoxy-resin-based tissue substitutes.. https://doi.org/10.1118/1.594496
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The use of the colloidal-gold technique in electron microscopy immunocytochemistry has provided important information on the in situ localisation of intracellular antigens. We have developed a post-embedding technique for prolactin localisation on resin-embedded human pituitary tissue sections by the use of the protein-A gold conjugate. Human pituitary tissue obtained at autopsy was processed for electron microscopical study without post-osmication and then embedded in Epon. The indirect immunoperoxidase method was used for light microscopical targetting of lactotroph cells for subsequent electron microscopical antigen localisation. Ultra-thin sections were labelled with human anti-human prolactin followed by protein-A gold conjugate. Specific labelling was observed over secretory granules with a density of 15-30 particles per granule, as determined by the Quantimet 570 image analysis system. This technique provides a means of studying the pathophysiology of hormonal secretion at ultrastructural level and can be a useful tool in diagnostic and research investigations.
Made-to-measure Modulan grip-aids were fitted to 755 articles for 155 patients with hand deformities due to leprosy. The acceptance of the grip-aids was, in general, good. No instance of contact dermatitis or skin irritation was reported. These grip-aids facilitated a normal grip with crippled hands, and thus considerably improved the quality of the patient's personal and working life. They increased the patient's self-esteem and self-confidence because he/she could handle everyday objects or tools without the help of others and could do his/her job--an important step toward social and economic rehabilitation.