Dihexas trajectoryfrom claims of being seven orders of magnitude more potent than BDNF in rodents to a failed Phase 2/3 trial and retracted foundational researchexemplifies this valley of death. This pattern demands particular caution when extrapolating from compelling animal data to expectations for human cognitive benefit
Regulatory status: Not approved for any medical use by any regulatory agency
PDGFs and Their Receptors
Administration: Subcutaneous injection, generally in the abdomen or thigh Side Effects Mild headaches Temporary nausea Possible irritation or redness at the injection area Water retention Drowsiness or fatigue 3
Such inconsistent changes in gut microbiota and metabolites have been reported in some previous studies
Liver dysfunction does not explain every mood or cognitive symptom, but oxidative stress, altered medication metabolism, gut-derived inflammation, ammonia, copper imbalance, low glutathione and impaired methylation may reduce neurological resilience in selected patients