ALP and Alizarin red S staining

QA Q-Schick Auh
KP Kyung-Ran Park
HY Hyung-Mun Yun
HL Hyun-Chang Lim
GK Ga-Hyun Kim
DL Dong-Sung Lee
YK Youn-Chul Kim
HO Hyuncheol Oh
EK Eun-Cheol Kim
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Primary osteoblasts were fixed in 70% ice-cold ethanol for 1 h and rinsed with distilled water. For Alizarin red staining, fixed cells were stained with 40 mM Alizarin Red S (pH 4.2) for 10 min with gentle agitation. The level of Alizarin Red S staining was observed under light microscopy. An ALP staining kit (86R-1KT, Sigma-Aldrich) was used according to the manufacturer's instructions.

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