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Abstract Background The prevalence of self-injury and suicide is higher than the general population of people living with HIV/AIDS (PLWHA). However, the results reported in existing studies are highly variable in China. The purpose of this systematic review and meta-analysis was to synthesize the currently available high-quality evidence to explore the prevalence and influence factors of self-injury and suicide among PLWHA in China. Method We retrieve literature written in Chinese and English through databases such as PubMed, Embase, Web of Science, Cochrane Library, SinoMed, CNKI, WanFang Database, and CQVIP from inception to 1 September 2022. Sata 16.0 software was used for analysis. Results A total of 28 studies were included with a sample size of 1,433,971 and had a satisfactory quality score of ≥ 5. The prevalence among PLWHA in China were 30% for suicidal ideation (SI), 5% for suicide attempt (SA), 8% for suicide plan (SP), 7% for attempted suicide (AS), and 3‰ for completed suicide. High stigma (OR = 2.94, 95%CI: 1.90 − 4.57), depression (OR, 3.17; 95%CI, 2.20 − 4.57), anxiety (OR, 3.06; 95%CI, 2.23 − 4.20), low self-esteem (OR, 3.82, 95%CI, 2.22 − 6.57), high HIV related stress (OR, 2.53; 95%CI, 1.36 − 4.72), and unemployment (OR, 2.50; 95%CI, 1.51 − 4.15) are risk factors for SI; high social support (OR, 0.61; 95%CI, 0.44 − 0.84) and spouse infected with HIV (OR, 0.39; 95%CI, 0.21 − 0.74) are protective factors for SI; depression (OR, 1.62; 95%CI, 1.24 − 2.13), high aggression (OR, 4.66; 95%CI, 2.59 − 8.39), and more negative life events (OR, 2.51; 95%CI, 1.47 − 4.29) are risk factors for AS; high level of education (OR, 1.31; 95%CI, 1.21 − 1.43) is risk factor for CS. Conclusion Figures indicate that approximately one-third of PLWHA had suicidal ideation, and three out of 1,000 completed suicide in China. Positive events are protective factors for self-injury and suicide among PLWHA, while negative events are risk factors. This suggests that psychosocial support and risk assessment should be integrated into the care of PLWHA.

Ischemic heart disease refers to the imbalance between the supply and demand of myocardial blood; it has various causes and results in a class of clinical diseases characterized by myocardial ischemia (MI). In recent years, the incidence of cardiovascular disease has become higher and higher, and the number of patients with ischemic heart disease has also increased year by year. Traditional treatment methods include drug therapy and surgical treatment, both of which have limitations. The former maybe develop risks of drug resistance and has more significant side effects, while the latter may damage blood vessels and risk infection. At this stage, a new cell-free treatment method needs to be explored. Many research results have shown that exosomes from different cell sources can protect the ischemic myocardium via intercellular action methods, such as promoting angiogenesis, inhibiting myocardial fibrosis, apoptosis and pyroptosis, and providing a new basis for the treatment of MI. In this review, we briefly introduce the formation and consequences of myocardial ischemia and the biology of exosomes, and then focus on the role and mechanism of exosomes from different sources in MI. We also discuss the role and mechanism of exosomes pretreated with Chinese and Western medicines on myocardial ischemia. We also discuss the potential of exosomes as diagnostic markers and therapeutic drug for MI.