PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
26555190-2	2015	While Ret signaling clearly impacts on the development, maintenance and regeneration of the mesostriatal DA system, the physiological functions of GDNF for the DA system are still unclear.	Dopamine	105-107	ret proto-oncogene	Homo sapiens	6-9	
26555190-5	2015	Here, we review the current knowledge of GDNF and Ret signaling and function in the midbrain DA system, and their crosstalk with proteins and signaling pathways associated with PD.	Dopamine	93-95	ret proto-oncogene	Homo sapiens	50-53