Excessive burden of ROS, failure of clearance mechanisms and even lack of antioxidants may lead to the accumulation of ROS and to oxidative stress [40], which are associated with genetic damage and breast cancer onset [61,62,63,64,65]

Abbreviations ADI-R: Autism diagnostic interview - revised ALAD: Delta aminolevulinic acid dehydratase CARS: Childhood Autism Rating Scale CNS: Central nervous system d.f.: Degrees freedom DSM: American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders fGSH: Free reduced glutathione GCL: Glutamate cysteine ligase GCT: -glutamyl cyclotransferase GGT: -glutamyl-transferase GPx: Glutathione peroxidase GSH: Reduced glutathione GSH: GSSG: Glutathione redox ratio GSH-R: Glutathione reductase GS: Glutathione synthetase GSSG: Oxidised glutathione GST: Glutathione-S-transferases Mg 2+ : Magnesium ions Mn 2+ : Manganese ions Q: Cochran's Q (a measure of statistical heterogeneity) SMD: Standardised mean difference tGSH: Total glutathione References Wing L, Gould J: Severe impairments of social interaction and associated abnormalities in children: epidemiology and classification

A partially purified leaf enzyme with DHAR activity was subsequently reported, but was considered likely to be cytosolic (Foyer and Halliwell 1977)
Animal LD50 studies in mice showed approximately 320 mg per kilogram of body weight, which translates to roughly 22,400 mg for a 154-pound human
Collagen is a protein that provides structure and elasticity to the skin, making it crucial for maintaining a youthful and healthy appearance