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. 2015 Nov 11;10:145. doi: 10.1186/s13023-015-0360-4

Fig. 4.

Fig. 4

Changes in extracellular matrix collagens in Bruch’s membrane in PRDM5-associated disease. Immunohistochemistry performed for collagens I, III and IV (red stain, obtained using the XT ultraView Universal Red Alkaline Phosphatase detection system) in retinas of a control individual, and BCS patients P1 and P2 (OM 40×). Absence of staining for collagens I, III and IV in Bruch’s membrane (arrow) is present in sample P1, and absent staining for collagen I with reduced staining for collagens III and IV in P2. Images were recorded and processed identically to allow direct comparisons to be made between them