Keep notes for two weeks, including bedtime, wake time, meal timing, nausea, reflux, caffeine, alcohol, exercise, and any missed meals
Managing GI discomfort during dose escalation supports medication adherence, which is the critical intermediate outcome
Practical Application Green tea (EGCG): Catechins show DPP-4 inhibitory activity in vitro Turmeric (curcumin): Demonstrates competitive DPP-4 inhibition Berberine: Reduces DPP-4 expression in laboratory studies Cinnamon extract: Shows modest DPP-4 inhibitory effects Ginger: Contains compounds with DPP-4 inhibitory potential Olive leaf extract: Polyphenols demonstrate DPP-4 modulation Green tea: 3-4 cups daily, brewed at 160-180F for 2-3 minutes Turmeric: 500-1000mg curcumin with black pepper (enhances absorption) Cinnamon: 1-2 teaspoons daily, preferably Ceylon variety Berberine: 500mg 2-3x daily (consult healthcare provider first) Important: Natural DPP-4 inhibition is modest compared to pharmaceuticals
To simplify this assay so that transient transfection with the GLP-1R was not required, H188 was expressed by adenoviral transduction in HEK293-GLP-1R cells that stably expressed the human GLP-1R 46