This is different from melena, which is black, tarry stools from upper gut bleeding
Slomovitz, who treats women with endometrial and ovarian cancers, noted that these are often obesity-driven cancers and that this association between GLP-1 and risk reduction is "not surprising." "The opportunities [for GLP-1s] are tremendous, and if the studies are positive, thats game-changing just like we see in other diseases," he said
These immunoassay methods are designed to detect specific drug classes , though they are considered presumptive results that should be confirmed by more definitive methods such as gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-mass spectrometry (LC-MS) if positive
The strongest, clearest evidence is biochemical: growth hormone releasing compounds like CJC-1295 raise growth hormone and IGF-1, and studies of growth hormone secretagogues confirm they can increase IGF-1, a measurable marker on the pathway (a 2017 study showing a growth hormone secretagogue raised serum IGF-1)