To isolate intestinal organoid, following euthanasia of 810-week-old male mice, crypts were isolated from the ileum fragments by EDTA incubation and plated in Matrigel using advanced DMEM/F12 containing 100 U/mL penicillin-streptomycin, 10 mM HEPES, 2 mM GlutaMAX (35050061), supplements N2 (17502048) and B27 (17504044) from ThermoFisher, 50 ng/mL murine EGF (315-09, Peprotech), 1 mmol/L N-acetylcysteine (A9165, Sigma), 100 ng/mL murine Noggin (250-38, Peprotech), and 1000 ng/mL human R-spondin-1 (120-38-20, Peprotech)
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For rigorous quality control, HPLC analysis of the reconstituted solution can confirm peptide integrity before experiments begin
This is not abstract chemistry
This may be due to increased metabolic dysfunction that would already make them more at risk of developing NAION.) The number of events (incidences of NAION) across both studies is quite low (this is still a rare eye condition)
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