Table 2. Primary antibodies for Western blotting.

Protein	Manufacturing company	Molecular weight	Dilution rate
COX-1	Cayman Chemical Campany, Ann Arbor, MI, USA; no. 160109	70 kDa	1:200
COX-2	Alpha Diagnostic Intl., San Antonio, TX, USA; no. 70209A	72 kDa	1:200
PGFS	Received from Dr. K Watanabe	32 kDa	1:500
PGES	Cayman Chemical; no. 160150	23 kDa	1:500
CBR1	Abcam plc., Cambridge, UK; no. ab4148	30 kDa	1:200
Beta-actin	Sigma-Aldrich; no. A2228	42 kDa	1:4000