Folic acid also helps to reduce the risk of central nervous system defects such as spina bifida in unborn babies
It may deplete the body of glutathione (to cleanse the cyanide molecule attached to it), which the body needs to lower the high homocysteine levels prevalent in PA
Third, and perhaps most importantly, self-administration removes the clinical feedback loop
In some cases, however, blood levels can appear normal even in later stages
A 2021 review in Frontiers in Pharmacology organised the wound-healing literature by tissue category, covering dermal, tendon, ligament, skeletal-muscle, osseous, peripheral-nerve, and vascular models (PMID 34267654)