Comparative Study on the Use of Various Preservatives for Prolonged Preservation of Stained Sections of Brain
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Keywords:
Brain, Epoxy resin, Glycerin, Preservation, SiliconAbstract
Formaldehyde is the most commonly used low-cost preservative, used for the preservation of anatomical specimens. However, the continuous use of formalin causes serious health problems and also deteriorates the natural colour of specimens. Therefore, efforts have been made to replace formalin with other preservatives which are not hazardous to health and maintain the quality of specimens for a prolonged time. The thin sections of the buffalo brain were stained with mulligan stain for the demonstration of gray and white substance. Each stained section of the brain was completely dehydrated in acetone and put into three preservatives viz. glycerin, epoxy resin and silicon. After complete processing, it was found that the section preserved in epoxy resin and silicon showed dark colour and were hard in consistency whereas, the glycerin- preserved specimen retained the maximum normal colour with normal consistency, and flexibility, and no shrinkage was noticed. Thus, it has been concluded that glycerin can be used as a good preservative instead of formalin for the prolonged preservation of brain.
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