Study on antagonistic effect of Liangxue Huayu recipe on endoplasmic reticulum stress-induced L02 hepatocyte apoptosis and its mechanism Analysis of Expression Pattern of LHR Gene in the Reproductive System of Yak During the Estrous Cycle A RADIORECEPTOR ASSAY OF LUTEINIZING HORMONE RELEASING HORMONE RECEPTOR AND CHARACTERIZATION OF LHRH BINDING TO PITUITARY RECEPTORS IN SHAO DUCK Efects of the Fruit of Rubus chingii Hu on Hypothalamus-pituitary-sex Gland Axis in Rats