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Background: Non-invasive brain stimulation (NIBS) techniques offer new therapeutic options for modifying pathological neuroplasticity and have been proven to be beneficial in the treatment of neuropsychiatric disorders. Objective: This study aimed to investigate the role of NIBS in treating catatonia. Materials and methods: We conducted a systematic search to identify meta-analyses or systematic reviews on electroconvulsive therapy (ECT) and studies on the effects of repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) on patients with catatonia from the PubMed, Web of Science, Embase, China National Knowledge Internet, Wanfang, and China Science and Technology Journal databases from inception until 31 July 2022. The methodological quality of the included studies was assessed with the AMSTAR2 or Joanna Briggs Institute Critical Appraisal tools. Paired t-tests and Wilcoxon signed-rank tests were used to compare changes in catatonia symptom scores after rTMS or tDCS. Results: A total of 13 systematic reviews and one meta-analysis on ECT, two systematic reviews and 12 case reports on rTMS, and seven studies of 14 cases applying tDCS were identified. Systematic reviews of ECT consistently described improvement in catatonia symptoms across catatonia types and patient age groups. After treatment with rTMS (t = 4.489, p = 0.006) and tDCS (z = -3.065, p = 0.002), patients exhibited significant improvement. Conclusion: ECT, rTMS, and tDCS were effective in treating catatonia. Early intervention with NIBS techniques may help improve catatonia symptoms in patients with schizophrenia. It may be advantageous to use rTMS or tDCS to maintain this improvement. NIBS techniques may thus represent a promising treatment for catatonia, but additional high-quality randomized controlled trials are needed. [ABSTRACT FROM AUTHOR]

Objectives: To assess the prevalence of psychological symptoms (depression, anxiety) among Chinese medical students and to find the possible relationships between psychological symptoms and social relationships. Methods: A sample of 10,140 medical students was investigated with a structured questionnaire, that included the Beck Depression Inventory, Beck Anxiety Inventory, Social Support Rating Scale, and Family APGAR Index (adaptability, partnership, growth, affection, resolve). Results: The present study revealed that 16.8% of the medical students suffered from depressive symptoms and 14.1% from anxiety symptoms. Female students were more likely to have anxiety, the second-year students had higher levels of psychological symptoms than the first-year students. Likewise, significant differences were found among college, satisfaction of specialty, and economic condition of the family in anxiety and depression symptoms. Social support, family function, and all dimensions were significantly negatively associated with depression and anxiety symptoms. Multivariable ordinal logistic regression showed that less social support, poor family function, the second-year students, and unsatisfactory specialty were associated with more psychological symptoms, after adjusting the effects of sex, age, and college. Conclusions: Medical students have a relatively high level of depression and anxiety symptoms. These findings support the hypothesis that if medical students are better supported and cared for, negative psychosocial consequences might be prevented or at least reduced. [ABSTRACT FROM AUTHOR]

Emerald ash borer ( Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae) is a major stem borer of ash ( Fraxinus spp.). It is univoltine in Tianjin, while it is semivoltine in Heilongjiang Province, and both univoltine and semivoltine in Changchun, Jilin Province, where the majority is univoltine. The longevity of emerald ash borer adults is 17.2 ± 4.6 days ( n= 45), eggs 9.0 ± 1.1 days ( n= 103), univoltine larvae 308 days, semivoltine larvae 673 days, and pupae 61.2±1.6 days ( n= 45). It takes about 100 days from the time larvae bore into the phloem to when they complete the pupal cell. In a 10-year-old velvet ash ( Fraxinus velutina Torr.) plantation in Tianjin, emerald ash borer preferred to oviposit on the regions of boles from 50-150 cm above ground, accounting for 76.7% of the total girdling. Girdling on the south side of the tree boles accounted for 43.40% of the total girdling. The emerald ash borer population density is higher at the edge of the plantation compared with the center. [ABSTRACT FROM AUTHOR]

Aim : To describe the rates and patterns of unintentional injuries among primary and middle school students in China. Methods : A cross-sectional survey was conducted in Maanshan City of the Anhui Province in eastern China. All students attending six primary and four middle schools, selected randomly, were asked to report unintentional injuries occurring in the 12-mo period before the survey. The occurrence of unintentional injuries that resulted in medical attendance was summarized by study grade, sex, month and external causes. Results : The annual event-based injury rate per 100 students was higher among boys (21.7) than girls (17.6). Only 1.9% of the episodes resulted in hospitalization, and 17.8% resulted in missing school. The most frequent injuries were falls (38.2%) and transportation-related injuries (19.6%). The risk of injury was lower in middle schools than primary schools. Distribution by month of occurrence showed two peaks in boys during spring and autumn, but no clear peak was observed in girls. Conclusion: The descriptive epidemiology of unintentional injuries among students in China provides useful information on the distributions in person, place and time, which in turn provide hints for the further exploration of possible risk factors that are important in planning strategies for future prevention. [ABSTRACT FROM AUTHOR]