title: Distribution of histidyl-proline diketopiperazine [cyclo (His-Pro)] and thyrotropin-releasing hormone (TRH) in the primate central nervous system.
mesh_terms: D000818:Animals; D001923:Brain Chemistry; D008253:Macaca mulatta; D008297:Male; D010456:Peptides, Cyclic / Q000032:analysis*; D010879:Piperazines / Q000032:analysis*; D011863:Radioimmunoassay; D013973:Thyrotropin-Releasing Hormone / Q000032:analysis*
chemical_list: D010456:Peptides, Cyclic; D010879:Piperazines; D013973:Thyrotropin-Releasing Hormone; C015924:histidyl-proline diketopiperazine