Figure 2
From: Potentially toxic elements in the brains of people with multiple sclerosis
Sample collection and analysis. Twenty-one people with MS had autometallography (AMG) staining on paraffin sections from 22 different brain sites (including the pons). Four of these had widespread blood vessel AMG staining. All MS patients had laser ablation-inductively coupled plasma-mass spectrometry imaging (LA-ICP-MSI) of the posterior and anterior pons. The 109 non-MS controls had screening AMG of five brain regions. Only one of these had widespread AMG blood vessel staining, so this control had AMG performed on 20 different brain sites. Twelve controls had LA-ICP-MSI of the posterior and anterior pons.
