Third, individual response and risk cannot be predicted from animal data
IGF-1 is a highly anabolic peptide hormone responsible for: Muscle cell proliferation and repair Tendon and ligament regeneration Bone growth Glucose uptake in muscle cells Increased satellite cell activation Oral administration of MK-677 raised serum IGF-1 levels by over 60% in healthy adults without altering cortisol, insulin, or gonadotropin concentrations. Chapman et al., Clinical Pharmacology & Therapeutics This rise in IGF-1 is what leads to muscle growth, improved recovery, and increased physical resilience over time
Oxidative stress is represented in the model by the concentration of H 2 O 2
Selenium deficiency risk predicted to increase under future climate change
The FDA prohibits the reuse of disposable syringes for safety
Clinical assessment and full blood count showing macrocytic anaemia are also important, though neurological symptoms can occur without haematological changes