Appraisal of the Effect of Brain Impregnation Duration on Neuronal Staining and Morphology in a Modified Golgi–Cox Method

Narayanan, Sareesh Naduvil and Jetti, Raghu and Gorantla , Vasavi Rakesh and Kumar, Raju Suresh and Nayak, Satheesha B and Bhat, Gopalakrishna P (2014) Appraisal of the Effect of Brain Impregnation Duration on Neuronal Staining and Morphology in a Modified Golgi–Cox Method. Journal of Neuroscience Methods, 235. pp. 193-207.

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Background: Golgi–Cox staining method is considered as one of the best neurohistological and fascinating staining techniques to reveal the cytoarchitecture of the brain. Requirement of longer time (more than a month), laborious section processing steps, requirement of sophisticated equipment’s and costly ready to use kits limits extensive use of this technique. New method: The need for a modified staining technique is to overcome some of these hurdles. Here we describe a modification of Golgi–Cox staining involving reduced impregnation time (7 days), omitting tissue dehydration steps, and alterations in section processing steps. Different impregnation duration (7 days, 14 days, 1 month, 6 months and 10 months) effects on optimized staining of dorsal hippocampus and basolateral amygdala were investigated.Results: Modified Golgi–Cox staining method was found to be effective in staining rat hippocampus and amygdala. Impregnation for 7 days, 14 days and 1 month resulted in giving good results and they were comparable. However, artifacts were slightly elevated with 6 months group but not extensively.Impregnation for 10 months negatively affected the staining process.Comparison with existing method(s): Compared to existing methods the current method was found to be cost effective, fast, reliable and can be executed in labs where infrastructure is limited.Conclusions: Current modification considerably benefitted in obtaining better results (good clarity and lesser artifact) in a short time. Longer impregnated brain sections were found to be unsuitable for morphometric evaluation due to more stain precipitation and artifact. The modified technique can be used to study cellular architecture in other brain regions

Item Type: Article
Uncontrolled Keywords: Golgi–Cox staining; Impregnation; Cytoarchitecture; Hippocampus; Amygdala
Subjects: Life Sciences > MLSC Manipal
Medicine > MMMC Manipal > Anatomy
Medicine > MMMC Manipal > Physiology
Depositing User: KMC Manipal
Date Deposited: 09 Jan 2015 09:30
Last Modified: 09 Jan 2015 09:30

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