Confocal fluorescence imaging of these probe-labeled vesicles confirmed their characteristic annular shape and demonstrated the localization of red fluorescence to the vesicles (Supplementary Fig
anything that promises faster healing of knee tendons, ligaments, or cartilage will attract attention
The dose you take and how often you take it both play a role in how your body responds
Red flags that should stop the protocol Certain findings should trigger immediate discontinuation of one or both compounds: IGF-1 levels exceeding the age-appropriate upper normal limit on two consecutive tests Fasting glucose rising above 126 mg/dL or HbA1c above 6.5% (indicating new-onset diabetes) Liver enzymes (ALT or AST) exceeding three times the upper limit of normal Persistent severe nausea, vomiting, or abdominal pain suggesting gastroparesis or pancreatitis New or worsening carpal tunnel syndrome symptoms Peripheral edema that does not resolve with fluid management Any sign of an allergic or hypersensitivity reaction These red flags are not exhaustive
In this review, we have relied on the interpretations provided by the original authors of the referenced studies while synthesizing the results, however, we acknowledge the limitations of these paradigms and the need for caution in their interpretation
Long-term human safety remains unestablished