With the proliferation of synthetic drugs, research on the mechanism of action of addictive drugs and treatment methods is of great significance. Among them, methamphetamine (METH) is the most representative amphetamine synthetic drug, and the treatment of METH addiction has become an urgent medical and social problem. In recent years, the therapeutic effects of Chinese herbal medicines on METH addiction have gained widespread attention because of their non-addictiveness, multiple targets, low side effects, low cost, and other characteristics. Previous studies have identified a variety of Chinese herbal medicines with effects on METH addiction. Based on the research on METH in recent years, this article summarizes the mechanism of action of METH as the starting point and briefly reviews the Chinese herbal medicine-based treatment of METH.
Humans ; Methamphetamine/adverse effects* ; Drugs, Chinese Herbal/therapeutic use* ; Amphetamine/therapeutic use* ; Behavior, Addictive/drug therapy* ; Amphetamine-Related Disorders/drug therapy*

Opioid use disorder (OUD) has become a considerable global public health challenge; however, potential medications for the management of OUD that are effective, safe, and nonaddictive are not available. Accumulating preclinical evidence indicates that antagonists of the dopamine D₃ receptor (D₃R) have effects on addiction in different animal models. We have previously reported that YQA14, a D₃R antagonist, exhibits very high affinity and selectivity for D₃Rs over D₂Rs, and is able to inhibit cocaine- or methamphetamine-induced reinforcement and reinstatement in self-administration tests. In the present study, our results illustrated that YQA14 dose-dependently reduced infusions under the fixed-ratio 2 procedure and lowered the breakpoint under the progressive-ratio procedure in heroin self-administered rats, also attenuated heroin-induced reinstatement of drug-seeking behavior. On the other hand, YQA14 not only reduced morphine-induced expression of conditioned place preference but also facilitated the extinguishing process in mice. Moreover, we elucidated that YQA14 attenuated opioid-induced reward or reinforcement mainly by inhibiting morphine-induced up-regulation of dopaminergic neuron activity in the ventral tegmental area and decreasing dopamine release in the nucleus accumbens with a fiber photometry recording system. These findings suggest that D₃R might play a very important role in opioid addiction, and YQA14 may have pharmacotherapeutic potential in attenuating opioid-induced addictive behaviors dependent on the dopamine system.
Rats ; Mice ; Animals ; Analgesics, Opioid ; Dopamine ; Heroin/pharmacology* ; Dopamine Antagonists/pharmacology* ; Receptors, Dopamine D3/metabolism* ; Morphine/pharmacology* ; Behavior, Addictive/drug therapy* ; Self Administration

OBJECTIVES: To explore the psychological status of medical staff in the epidemic period of coronavirus disease 2019 (COVID-19), and to analyze its influential factors. METHODS: A total of 373 medical staff from Xiangya Hospital and the Second Xiangya Hospital of Central South University were enrolled for this study. The General Sociological Data Questionnaire, Symptom Check-List 90 (SCL-90), and self-designed public opinion response questionnaire were used to assess general sociological data, mental health scores, and ability to respond to COVID-19 related public opinion information of medical staff. The mental health scores of medical staff with different general sociological data and public opinion information coping abilities were compared. Influential factors of mental health were analyzed. RESULTS: The average score of 10 factors in SCL-90 of 373 medical staff was less than 2 points. 14.21% medical staff had one or more factor scores more than two points, including 11.26% with terror symptoms, 7.77% with compulsive symptoms, and 5.63% with anxiety. The main sources of COVID-19 information for medical staff included WeChat, microblog, Jinri toutiao, TV and radio. 66.22% medical staff regularly verified information about COVID-19 through official websites or formal channels. A great deal of COVID-19 information in WeChat could make medical staff nervous (34.05%), anxious (30.29%), and insecure (29.22%). 68.63% medical staff sometimes were worried about getting infected because they knew information about COVID-19. Different departments of medical staff, getting cough or having a fever recently, and the degree of fear of infection had an impact on the SCL-90 score of medical staff, the differences were all statistically significant (all <0.05). Stepwise regression analysis showed that the impact of COVID-19 information on their life in WeChat, getting cough or having a fever recently, insomnia-early caused by COVID-19 information in WeChat, different departments, and the degree of fear of infection COVID-19 were the influential factors for the mental health of medical staff (all <0.05). CONCLUSIONS During the epidemic of COVID-19, medical staff suffered from psychological problems to various degrees. It is necessary to establish a psychological assistance platform and guide the direction of public opinion correctly to promote the mental health of medical staff.
Anxiety ; Betacoronavirus ; China ; Compulsive Behavior ; Coronavirus Infections ; epidemiology ; psychology ; Fear ; Health Status ; Humans ; Medical Staff ; psychology ; Mental Health ; Pandemics ; Pneumonia, Viral ; epidemiology ; psychology ; Surveys and Questionnaires

Attention Deficit Disorder with Hyperactivity ; Body Image ; Bullying ; Child ; Cognitive Therapy ; Depression ; Eating ; Humans ; Impulsive Behavior ; Mental Health ; Multimedia ; Obesity ; Pediatric Obesity ; Prevalence

BACKGROUND: School teachers have a possibility toward at-risk Internet addiction (IA) due to increased opportunities to use the Internet, along with the spread of the Internet in recent years. Burnout syndrome (BOS) is found to be one of the symptoms related to unhealthy mental health, especially among teachers. This study aims to research the relationship between at-risk IA and the Internet usage or BOS by conducting a nationwide cross-sectional survey and examining the factors associated with IA. METHOD: This study was a cross-sectional survey by anonymous questionnaire. This survey was a random sampling survey of junior high schools across Japan in 2016. The participants were 1696 teachers at 73 schools (response rate in teachers 51.0%). We asked participants for details of their backgrounds, Internet usage, the Internet Addiction Test (IAT) by Young, and the Japanese Burnout Scale (JBS). We divided the participants into either the at-risk IA group (IAT score ≧ 40, n = 96) or the non-IA group (IAT score < 40, n = 1600). To compare the difference between at-risk IA and non-IA, we used nonparametric tests and t test according to variables. To analyze the relationship between the IAT score and the scores of three factors of the JBS (emotional exhaustion, depersonalization, and personal accomplishment), we used both ANOVA and ANCOVA, adjusted by relevant confounding factors. To clarify the contribution of each independent variable to IAT scores, we used multiple logistic regression analysis. RESULTS: In our study, at-risk IA was associated with using the internet many hours privately, being on the Internet both on weekdays and weekends, playing games, and surfing the Internet. In the relationship between IAT score and BOS factor score, a higher score for "depersonalization" had a positive relationship with at-risk IA, and the highest quartile for "decline of personal accomplishment" had a lower odds ratio with at-risk IA by multiple logistic regression analysis. CONCLUSION We clarified there is a significant relationship between at-risk IA and BOS among junior high school teachers in a nationwide survey. Our results suggest that finding depersonalization at the early stage may lead to the prevention of at-risk IA among teachers. Those who are at-risk of IA may feel personal accomplishment through use of the Internet.
Adult ; Analysis of Variance ; Behavior, Addictive ; psychology ; Burnout, Psychological ; psychology ; Cross-Sectional Studies ; Humans ; Internet ; Japan ; Male ; Middle Aged ; Personal Satisfaction ; Risk Factors ; School Teachers ; psychology ; Schools ; Surveys and Questionnaires

PURPOSE: Smartphone overdependence in young adults is a growing issue, that requires a vigorous approach to manage its associated problems in the affected ones. This study was designed to suggest a detailed direction to help university students with smartphone overdependence, who would be internally motivated through satisfying their basic needs based on the self-determination theory (SDT). METHODS: The data were collected via face-to-face interviews with twenty program providers, who have managed the program for preventing and treating the smartphone overdependence. All interviews were audio-recorded and transcribed. The data were analyzed using directed qualitative content analysis. RESULTS: One core category emerged from the findings: ‘Empowering motivation of autonomous actor of change associated with environmental context,’ which three generic categories and seven subcategories supported. Apart from the three basic needs in the SDT, autonomy, relatedness, and competence, no additional concepts were mentioned, but the participants complained about the practical difficulties of running programs with non-motivated students. CONCLUSION: Our study findings emphasize that research and clinical practice for young people with smartphone overdependence should focus more on developing detailed program contents synchronized with theoretical and conceptual guidance.
Behavior, Addictive ; Humans ; Mental Competency ; Motivation ; Qualitative Research ; Running ; Smartphone ; Young Adult

OBJECTIVE: Resilience and impulsivity have opposite effects on depression in stressful situations. This study aimed to investigate the association among resilience, impulsivity, and depression in young males. METHODS: The participants consisted of 429 conscripts who underwent military training over 5 weeks. The surveys included the Connors- Davidson Resilience Scale-Korean version, the Barratt Impulsiveness Scale-11-Revised, and the Center for Epidemiological Studies- Depression Scale. The surveys were administered both before and after training. RESULTS: When simultaneously considering impulsivity and resilience, resilience was not associated with depression. Impulsivity had a complete negative mediating effect on resilience and depressive symptoms. Impulsivity is a significant negative mediating factor for the protective effect of resilience on depression. CONCLUSION: This study recommends considering impulsivity when evaluating the protective role of resilience against depression.
Depression ; Humans ; Impulsive Behavior ; Male ; Military Personnel ; Negotiating

OBJECTIVE: Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in elementary school children. The present study investigated the characteristics of ADHD in Korean elementary school children using the Korean version of the ADHD Rating Scale (K-ARS). The data was compared with those obtained from a comparable American population. METHODS: Participants included 29,914 elementary school children, aged 6–12 years, from a medium-sized city. The parents completed the home version of the K-ARS. The total and subscale-specific normative data and sex- and age-related mean score differences were analyzed. These data were compared with those obtained from the American population using independent t-tests. RESULTS: Mean total and subscale K-ARS scores were significantly higher among boys (vs. girls) and younger children aged equal to or less than 8 years old (vs. older children). Mean scores on the hyperactivity-impulsivity subscale were lower than those of American children, but similar to another Korean sample. CONCLUSION: Our data characterized ADHD symptoms in Korean children. However, further studies are needed to identify the cultural differences underlying ratings of ADHD symptom severity.
Child Psychiatry ; Child ; Cross-Cultural Comparison ; Humans ; Impulsive Behavior ; Neurodevelopmental Disorders ; Parents

PURPOSE: The purpose of this study was to examine the association of multiple addiction risks with life satisfaction, depression, and suicidal ideation in Korean adults. METHODS: This study was descriptive correlational. Data were collected in 800 adults (405 males, 395 females) aged 20 to 69 years recruited using the proportional allocation in a city on April 2017. The structured questionnaire consisted of the Alcohol Use Disorders Identification Test, the Internet Addiction Proneness Scale for adults, the Problem Gambling Severity Index, the Drug Screening Inventory, the Korean version of the Satisfaction with the Life Scale, the Patient Health Questionnaire-9, and the Scale for Suicidal Ideation. RESULTS: Adults with multiple addiction risks had a low level of life satisfaction (p=.003) and high levels of depression and suicidal ideation (p<.001) compared to other participants. Multiple addiction risks were associated with low life satisfaction (β=.12), high depression (β=.21), and suicidal ideation (β=.20). Significant factors of life satisfaction were low suicidal ideation, a simple functioning job, high level of education, and unemployment status. CONCLUSION: Multiple addiction risks are associated with life satisfaction, depression, and suicidal ideation. The comprehensive mental health assessment for multiple addictions should precede the development of preventive multidimensional interventions.
Adult ; Behavior, Addictive ; Depression ; Drug Evaluation, Preclinical ; Education ; Gambling ; Humans ; Internet ; Male ; Mental Health ; Personal Satisfaction ; Suicidal Ideation ; Unemployment

PURPOSE: The aims of this study were to evaluate a hypothetical model explaining undergraduates' interpersonal relationship ability associated with the stress of life, self-esteem, and their communication ability and to identify the mediating effect of a smartphone addiction tendency on the identified associations. METHODS: Data were collected from 201 undergraduates using a structured questionnaire from August to September 2017. Data analyses included descriptive statistics, Pearson's correlation coefficients, and structural equation modeling with SPSS AMOS 22.0. RESULTS: The participants' interpersonal relationship ability was 65.9%, explained by the stress of life, self-esteem, communication ability, and smartphone addiction tendency. The factors of undergraduates' interpersonal relationship ability were self-esteem (β=.10, p<.01) and communication ability (β=.14, p<.001). Stress of life (β=.15, p<.01) directly affected the participants' smartphone addiction tendency, which was not associated with interpersonal relationship ability. CONCLUSION: Based on our study findings, self-esteem and communication ability should be considered for developing nursing interventions to improve interpersonal relationship ability. However, a smartphone addiction tendency may be managed for undergraduates who experience excessive stress of life rather than interpersonal relationship ability. Thus, a tailored approach targeting specific needs or competence should be developed based on our data-based framework.
Behavior, Addictive ; Communication ; Humans ; Interpersonal Relations ; Mental Competency ; Negotiating ; Nursing ; Smartphone ; Statistics as Topic ; Stress, Psychological