In response, herbivores have simultaneously developed countermeasures against plant defense compounds [5]
Sikiri et al., Burns 2003, 29, 323334
doi:10.1016/j.bbagen.2013.04.016 Arranz L, Fernndez C, Rodrguez A, Ribera JM, De la Fuente M (2008) The glutathione precursor N -acetylcysteine improves immune function in postmenopausal women
The American journal of clinical nutrition
However, the high prevalence of VD deficiency in PD patients could also be the result of reduced outdoor activity owing to activity restriction, and the possibility that gastrointestinal dysfunction (a non-motor PD symptom) leads to lower VD2 levels in PD patients cannot be completely ruled out