Commercially available enzyme-linked immunosorbent assays (ELISA) were used for determination of total GLP-1 (736 and 936) (ALPCO, Salem, NH), GLP-2 (133 and 333) (Merck Millipore, Burlington, MA) and DPP4 (R&D Systems, Minneapolis, MN) plasma concentrations and were carried out according to the manufacturers instructions
If sleep quality deteriorates, dose timing or total daily dose may need adjustment
Individuals taking the drugs for diabetes were more likely to restart the medication compared with those using them for obesity, a difference associated with more consistent insurance coverage for diabetes-related prescriptions
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Common, usually mild: Injection-site reactions (redness, swelling, itching), most frequent with both Mild headache, dizziness, or flushing after injection Initial water retention as IGF-1 rises Transient fatigue in the first 12 weeks Less common, dose-dependent: Carpal tunnel-like wrist symptoms (sign IGF-1 may be too high) Joint discomfort or stiffness Numbness or tingling in extremities Elevated blood glucose (GH antagonizes insulin) The monitoring that matters:IGF-1 (insulin-like growth factor 1, the downstream marker of GH activity) is the lab value that tells you whether youre in a therapeutic range or pushing past it