Xenopus oocytes expressing human aquaporin-7 (AQP7) exhibit greater osmotic water permeability and 3H-glycerol uptake vs. those expressing the bacterial glycerol facilitator GlpF. AQP7-expressing oocytes exposed to increasing extracellular [glycerol] under isosmolal conditions exhibit increasing swelling rates. whereas GlpF-expressing oocytes do not swell at all. https://www.roneverhart.com/Cho-Pat-Tennis-Elbow-Strap-Tennis-Elbow-Strap-Small-5623/