This video demonstrates the differential staining of collagen fibers, nuclei, and cytoplasm in heart tissue to visualize fibrotic growth associated with cardiac pathologies.
Protocol
1. Masson-Goldner Trichrome Staining Make tissue sections from paraffin-embedded heart blocks with a manual microtome (thickness: 5 µm). Stain one slide from each heart part for each rat (3 – 4 transversal sections per slide) with Masson-Goldner trichrome staining. Melt the slides at 60 °C in an oven. Under a fume hood, deparaffinize them in xylol twice for 10 min each. Rehydrate them in 100% ethanol, 95% ethanol, 70% ethanol, and distilled water for 3 min each. Fix …
Masson Goldner Trichrome Staining: A Technique to Visualize Collagen in Heart Sections for Cardiovascular Fibrosis Detection. J. Vis. Exp. (Pending Publication), e21053, doi: (2023).