How GLP-1 Manages Diabetes
RT-PCR/Southern blot analyses indicates lung has particularly high Glp-1r mRNA levels, as well as the body of the stomach, the small intestine, and the pancreas [23], while whole heart, kidney, and liver have extremely low or nearly undetectable levels of Glp-1r mRNA [22], [23]
As mentioned, a secondary analysis of an RCT assessing the cardiometabolic effects of exenatide in 40 people with schizophrenia 140 also looked at measures of cognition and psychosocial functioning (that is, Brief Assessment of Cognition in Schizophrenia, ReyOsterreith Complex Figure Test, Short-Form Health Survey, Personal and Social Performance Scale, Positive and Negative Syndrome Scale), but found no effect for this GLP-1RA compared with placebo over 3 months 133
A drug or hormone can only act where its receptor is expressed, Habegger said
The timeline for retatrutide effects including cardiovascular adaptation makes this a temporary concern during the treatment initiation period rather than a permanent cardiovascular burden