In vitro grafts increase blood flow in infarcted rat hearts

Histology slides show murine heart at five days post-implant a) with conventional non-perfusable vessels and b) with patterned perfusable cardiac construct. Credit: Nicole Zeinstra / University of Washington Bioengineering https://www.sciencedaily.com/releases/2019/02/190205102600.htm

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Stem cell treatments for arthritic knees are unproven, expensive and potentially dangerous

An X-ray of both knees reveals a narrow space between joints caused by loss of cartilage. Puwadol Jaturawutthichai/Shutterstock.com https://theconversation.com/stem-cell-treatments-for-arthritic-knees-are-unproven-expensive-and-potentially-dangerous-110642

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