Dynamic analysis of protracted withdrawal symptoms, neurotransmitters, cytokine content and psychological status of heroin addicts in Yunnan Province.

BACKGROUND

Yunnan Province, adjacent to the "Golden Triangle," a notorious drug trafficking region, faces a severe public health challenge due to high rates of heroin addiction. Despite existing interventions, protracted withdrawal symptoms (PWS) remain a significant barrier to recovery and a primary cause of relapse. This study investigates the dynamic changes in neurotransmitter and cytokine levels and their correlation with PWS and psychological status in heroin addicts undergoing detoxification.

METHODS

A prospective cohort study was conducted with 136 voluntary heroin detoxification patients from March 2018 to October 2021. Participants underwent assessments at 30, 180, and 360 days post-detoxification, focusing on sociodemographic data, heroin usage characteristics, neurotransmitter (dopamine, β-endorphin, epinephrine) and cytokine (IL-2, IL-4, IFN-γ) levels, as well as psychological evaluations for anxiety and depression using the Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS).

FINDINGS: The study identified significant fluctuations in neurotransmitter and cytokine levels throughout the detoxification period, which correlated with the severity and variation of PWS. Notably, symptoms such as emotional anxiety and inability to concentrate gradually decreased over time, whereas drug cravings peaked at 180 days, coinciding with the lowest levels of IL-2, IL-4, and IFN-γ. These immune function disruptions suggest a critical period of heightened vulnerability to relapse.

INTERPRETATION: The findings underscore the necessity of long-term rehabilitation strategies that integrate physiological, psychological, and social interventions to manage heroin addiction effectively. Continuous monitoring of neurotransmitter and cytokine levels could provide early indicators of relapse risk, informing targeted interventions during critical recovery periods.