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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
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Year : 2021  |  Volume : 25  |  Issue : 1  |  Page : 199
Toward developing natural histologic stains using anthocyanins: A novel approach


1 Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Mumbai, Maharashtra, India
2 Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Mumbai, Maharashtra, India

Correspondence Address:
Sanpreet Singh Sachdev
302, Department of Oral Pathology and Microbiology, Government Dental College and Hospital, P D' Mello Road, Fort, Mumbai - 400 001, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jomfp.JOMFP_228_20

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Introduction: In the present-day scenario, wherein histotechnological laboratory personnel come into contact with numerous hazardous chemicals every day, laboratories are emphasizing on development of safer and environment-friendly alternatives globally which are easily available and feasible. In this context, we have attempted to utilize anthocyanins, a family of pigments naturally occurring in fruits and flowers and which are already used as natural food colorants, for assessing their utility as histological stains. Materials and methods: Juices of thin consistency from well-ripened pomegranates were obtained by using a juicer with blender functions. Formalin-fixed paraffin-embedded 4 μm thin sections were immersed in this solution for 2 h, during which the solution was periodically monitored. Several modifications were attempted such as the addition of Citrus limon (lemon) extract or acetic acid, change in orientation of the slides and refrigeration of the solution during the staining procedure. Results: A peculiar pattern of reasonably diagnostic staining was observed in which the basal and suprabasal cells, basement membrane, inflammatory cells and collagen fibers stained prominently with a magenta color. The addition of lemon, horizontal orientation of slides and refrigeration each separately led to an improvement in staining characteristics. The addition of 4% acetic acid and refrigeration of the solution each led to an improvement in longevity of the staining solution. Conclusion: Anthocyanins could potentially be used as viable histological stains having advantages of availability, feasibility, color stability and nontoxicity, although numerous modifications to improve longevity of staining solution and staining characteristics are warranted by further research for which the present study could serve as a pretext.


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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007