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Komaragiri M, Sparber LS, Santos-Zabala ML, Dardik M, Chamberlain RS

Cells counteract superoxide's harmful effects through antioxidant defense systems, including SOD, which catalyzes its conversion into H 2 O 2 , which is then further detoxified by catalase or peroxidases

A different randomized, double-blind, placebo-controlled clinical trial demonstrated that daily oral administration of equal-lower doses (5 g/day) of l-ARG for a shorter period (6 weeks) compared to the current study induced a significant subjective improvement of penile erectile function, as assessed through standardized OLeary questionnaire for ED, although without a significant improvement of penile vascular parameters assessed by basal PDU, in 29 middle-aged/elderly men affected by organic ED of mixed etiology and unknown severity, therefore reporting, in line with the results of the current study, a discrepancy between subjective and objective improvement in erectile function [28]

Takakura Y, Suzuki T, Hirai N, Araki T, Ohishi M, Sato H, et al

reduce dose or take with a small snack if sensitive