Sarkar, M., Sengers, B
Laboratory studies have demonstrated biological activity at concentrations as low as 0.01 nanomolar, showing measurable effects on fibroblast activity and collagen production even at these minute levels
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Nuclear IGF-IR regulates gene expression While IGF-IR is usually localized at the plasma membrane in normal cells, it often translocates into the cytoplasm and nucleus in cancer cells even though it does not have the nuclear localization signal [78,79,80]
The bottom line for 2026 decision-making: if you researched GLP-1 telehealth programs in late 2025 and are returning to make a decision now, the options, availability, and regulatory context you were looking at then may not match what's currently on the table