subcutaneous or intramuscular delivery achieves systemic bioavailability for non-GI applications
Additionally, anxiety and stress trigger SNS hyperactivity, increasing renin release and angiotensin II, which promote renal vasoconstriction and tubulointerstitial damage (Wang and Dong, 2016) while elevated norepinephrine levels under mental distress accelerating kidney function decline (Tidgren and Hjemdahl, 1989)
doi: 10.3390/ijerph18041910 92 AhmedHPatelKGreenwoodDCHalpinSLewthwaitePSalawuAet al
Ann N Y Acad Sci 786:217223 Paolicchi A, Minotti G, Tonarelli P, Tongiani R, De Cesare D, Mezzetti A, Dominici S, Comporti M, Pompella A (1999) Gamma-glutamyltranspeptidase-dependent iron reduction and LDL oxidationa potential mechanism in atherosclerosis
This degeneration of dopaminergic neurons is strongly linked to the generation of reactive oxygen species and oxidative stress as well as mitochondrial dysfunction, neuroinflammation, and aging (Dias et al., 2013)