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Cell 136 , 163174 (2009)

Extended use isnt well-studied in humans, so most experts recommend cycling it, typically 48 weeks on, followed by a few weeks off, to support safety and effectiveness.

doi: 10.1016/j.tibs.2003.11.007 48

Thioredoxin-1 mediates neuroprotection of Schisanhenol against MPP+-induced apoptosis via suppression of ASK1-P38-NF-B pathway in SH-SY5Y cells

Other signs may involve the formation of blood vessels in the clear covering of the eye (vascularization of the cornea) and decreased red blood cell count in which the existing red blood cells contain normal levels of hemoglobin and are of normal size (normochromic normocytic anemia) (1, 3)