Background: Autism spectrum disorder (ASD) is a neurodevelopmental issue that disrupts behavior, nonverbal communication, and social interaction, impacting all aspects of an individual’s social development. The underlying origin of autism is unclear, however, oxidative stress, as well as serotonergic, adrenergic and dopaminergic systems are thought to be implicated in ASD. Despite the fact that there is no effective medication for autism, current pharmacological treatments are utilized to ameliorate some of the symptoms such as selfmutilation, aggression, repetitive and stereotyped behaviors, inattention, hyperactivity, and sleep disorders. Methods: In accord with the literature regarding the activity of herbal medicines on neurotransmitter function, we aimed to review the most worthy medicinal herbs possessing neuroprotective effects. Results: Based on the outcome, medicinal herbs such as Zingiber officinale, Astragalus membranaceu, Ginkgo biloba, Centella asiatica and Acorus calamus, have antioxidant activity, which can influence neurotransmitter systems and are potentially neuroprotective. Conclusions: Consequently, these herbs, in theory at least, appear to be suitable candidates within an overall management strategy for those on the autism spectrum.

Social isolation stress can alter liver function. This study examined the effects of N-acetylcysteine (NAC) on biochemical and genetic liver changes in mice under social isolation stress. Ten male and ten female mice were individually placed in Plexiglas cages for mating. Their pups were divided into six groups of eight (three male and three female): a control group receiving normal saline, a social isolation stress group (SIS + NS) also receiving saline, and a social isolation stress group treated with intraperitoneal NAC (SIS + NAC). Behavioral tests, including Resident Intruder, Sociability Index, and Social Novelty Preference Index, were conducted. Liver catalase, serum antioxidant capacity, malondialdehyde, and gene expression of interleukin 1 beta and interleukin 6 in the liver were assessed. NAC reduced violent behaviors while increasing interaction duration and frequency in the Sociability test. It enhanced liver catalase and serum antioxidant capacity while reducing serum malondialdehyde and liver interleukin 1 beta and interleukin 6 expression. The results of this study showed that N-acetylcysteine exerts its effects by reducing oxidative stress and reducing genes involved in inflammation. These findings suggest that NAC, with its antioxidant and anti-inflammatory properties, mitigates liver damage caused by social isolation stress.