Proteomic Analysis of Proteins changed by Bilateral Orchiectomy in the Male Rabbit Bladder.

Study design, materials and methods New Zealand white male rabbits (2.5-3 kg) were divided into 2 group; control group with 5 rabbits and bilateral orchiectomized group, bilateral orchiectomized group was divided into post-operative 4 weeks group (group 1), and 8 weeks group (group 2) with 5 rabbits respectively. Bladder wall was excised partly at 4 or 8 weeks from the beginning of the experiment. Conventional proteomics was performed with high resolution 2-D gel electrophoresis followed by computational image analysis and protein identification using mass spectrometry. We decided to consider ‘significant’ if protein had 50% decreasing or 200% increasing expression rate.