ko pathway ratio_in_study ratio_in_pop p_value ko04744 Phototransduction 2/18 36/7206 0.00353088815001 ko05033 Nicotine addiction 2/18 56/7206 0.00837993855337 ko05030 Cocaine addiction 2/18 73/7206 0.0139464432059 ko04721 Synaptic vesicle cycle 2/18 80/7206 0.0165977496107 ko00910 Nitrogen metabolism 1/18 19/7206 0.0464651941166