Background Coronavirus disease 2019 (COVID-19) is a new infectious disease caused by SARS-CoV-2, with epidemiological characteristics such as strong infectivity, high morbidity, multiple infection routes, and widespread infection [1, 2]. Since the epidemic began in Wuhan, China, in December 2019, from January 2020 to April 2020, COVID-19 has spread explosively in China. As of May 24, a total of 5,290,506 cases had been diagnosed worldwide, with a total of 342,448 deaths. A total of 84,525 cases had been diagnosed in China, with 4,645 deaths and 79,749 cured [3]. The spread of the COVID-19 epidemic occurred exceptionally quickly, and its range is extensive, covering almost all countries in the world. Since the outbreak in China in December, the outbreak has been effectively controlled through the development of the Chinese government's prevention and control measures. On February 25, 2020, there were no new cases in 26 provinces across the country. The Chinese government began to gradually ease the controls of the epidemic situation and initiate the national resumption of production and orderly recovery, and China's anti-epidemic efforts have achieved effective results. Health workers are among the most important people in every major public health challenge, as frontline anti-epidemic workers, have made great contributions to anti-epidemic work and have experienced great psychological pressure, which may increase the current baseline level of psychopathology [4], it can even lead to related disorders, stress, anger, and mood dysregulation [5], can not continue to put into work. Therefore, the mental health issues of healthcare workers cannot be ignored. On January 26, 2020, the National Health Commission of China issued the notification of principles for emergency psychological crisis intervention for the COVID-19 epidemic. Local governments responded actively, establishing
Background: To evaluate the association between risperidone use and interleukin-6 (IL-6) levels by conducting a meta-analysis of controlled before-and-after studies. Methods: Studies were identified through a systematic search of PubMed and Embase. The mean and standardized differences were extracted to calculate the standardized mean differences. IL-6 levels were compared in patients with schizophrenia before and after risperidone treatment. Results: Ten studies were included in the final meta-analysis. The primary findings from our study suggest that there was a significant decrease in serum IL-6 levels after risperidone treatment (P = .021). A subgroup analysis revealed the sources of heterogeneity. The sensitivity analysis indicated that the results were stable, and no publication bias was observed. Conclusions: The present meta-analysis provides evidence that risperidone can significantly reduce IL-6 levels in schizophrenia. IL-6 is a potential biomarker of the pathophysiology and clinical processes of schizophrenia.
Treatment-resistant schizophrenia (TrS) is a common phenotype of schizophrenia that places a considerable burden on patients as well as on society. TrS is known for its tendency to relapse and uncontrollable nature, with a poor response to antipsychotics other than clozapine. Therefore, it is urgent to identify objective biological markers, so as to guide its treatment and associated clinical work. in the present study, the peripheral blood mononuclear cells (PBMcs) of patients with TrS and a healthy control group, which were gender-, age-and ethnicity-matched, were subjected to microrna (mirna/mir) sequencing to screen out the top three mirnas with the highest fold change values. These were then validated in the TrS (n=34) and healthy control (n=31) groups by reverse transcription-quantitative Pcr. For two of the top three mirnas, the Pcr results were in accordance with the sequencing result (P<0.01), while the third mirna exhibited the opposite trend (P<0.01). To elucidate the functions of these two mirnas, Homo sapiens (hsa)-mir-218-5p and hsa-mir-1262 and their regulatory network, target gene prediction was first performed using online TargetScan and diana-micro T software. Bioinformatics analysis was then performed using functional enrichment analysis to determine the Gene ontology terms in the category biological process and the Kyoto encyclopedia of Genes and Genomes pathways. it was revealed that these target genes were markedly associated with the nervous system and brain function, and it was obvious that the differentially expressed mirnas most likely participated in the pathogenesis of TrS. a receiver operating characteristic curve was generated to confirm the distinct diagnostic value of these two mirnas. it was concluded that aberrantly expressed mirnas in PMBcs may be implicated in the pathogenesis of TrS and may serve as specific peripheral blood-based biomarkers for the early diagnosis of TrS.
Background: Bipolar disorder (BD), a common kind of mood disorder with frequent recurrence, high rates of additional comorbid conditions and poor compliance, has an unclear pathogenesis. The Gene Expression Omnibus (GEO) database is a gene expression database created and maintained by the National Center for Biotechnology Information. Researchers can download expression data online for bioinformatics analysis, especially for cancer research. However, there is little research on the use of such bioinformatics analysis methodologies for mental illness by downloading differential expression data from the GEO database. Methods: Publicly available data were downloaded from the GEO database (GSE12649, GSE5388 and GSE5389), and differentially expressed genes (DEGs) were extracted by using the online tool GEO2R. A Venn diagram was used to screen out common DEGs between postmortem brain tissues and normal tissues. Functional annotation and pathway enrichment analysis of DEGs were performed by using Gene ontology and Kyoto Encyclopedia of Genes and Genomes analyses, respectively. Furthermore, a protein-protein interaction network was constructed to identify hub genes. Results: A total of 289 DEGs were found, among which 5 of 10 hub genes [HSP90AA1, HSP90AB 1, UBE2N, UBE3A, and CUL1] were identified as susceptibility genes whose expression was downregulated. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analyses showed that variations in these 5 hub genes were obviously enriched in protein folding, protein polyubiquitination, apoptotic process, protein binding, the ubiquitin-mediated proteolysis pathway, and protein processing in the endoplasmic reticulum pathway. These findings strongly suggested that HSP90AA1, UBE3A, and CUL 1, which had large areas under the curve in receiver operator curves ( P < .05), were potential diagnostic markers for BD. Conclusion: Although there are 3 hub genes [HSP90AA1, UBE3A, and CUL 1] that are tightly correlated with the occurrence of BD, mainly based on routine bioinformatics methods for cancer-related disease, the feasibility of applying this single GEO bioinformatics approach for mental illness is questionable, given the significant differences between mental illness and cancer-related diseases.
Agar accounts for ~60% of the dry weight of some red macroalgae, and the breakdown of this kind of polysaccharide releases high-value compounds; therefore, the resource utilization of agar is of great significance to improve the added value of these macroalgae. Herein, Alteromonas macleodii QZ9-9 isolated from tropical Gracilaria hainanensis in Hainan Island was characterized as an agarolytic bacterium, which displayed a high agar-degrading activity. The highest diameters of the degradation zones of the A. macleodii QZ9-9 and its extracellular-agarase (12.16 U/mL) were 41.46 mm and 22.89 mm, respectively, and the first-order degradation rate constants of those were 0.02 h−1 and 0.77 U−1, respectively. Importantly, the fermentation products of A. macleodii QZ9-9 exhibited antioxidant activity, and the peak of DPPH scavenging activity of 50 h fermentation products of this strain was up to 50.79% in the reaction for 1 h; the DPPH scavenging activity of low molecule metabolites (≤3 kDa) in particular was up to ~85.85%. A total of 766 metabolites were detected in the low molecule metabolites by metabolomics. The peptide-like metabolites, such as prolyl–histidine, isoleucyl–histidine, isoleucyl–proline and arginyl–proline, and the antioxidant maculosin were found in the top 20 metabolites with relatively high abundance. Additionally, the antioxidant activity of maculosin was further verified in this work. We concluded that the low molecule metabolites of A. macleodii QZ9-9 with relatively high antioxidant activity are interesting candidates for preparing desirable non-toxic antioxidants, thereby facilitating the high value-added utilization of macroalgae in the fields of cosmetic, food preservation, and pharmaceutical industries.
The family Bacillaceae bacteria, particularly Bacillus communities, are useful and attractive probiotics with desirable features to fulfill the vast demand for aquaculture. In Hainan Island, the coastal aquaculture ponds hold about 1% of the total area in China, whereas the knowledge of Bacillaceae bacterial communities was limited. Herein, the Bacillaceae bacterial communities in the coastal aquaculture ponds of the artificial ponds (lined with high-density polyethylene plastic sheets) and earthen ponds were investigated by the culturable method. The characteristics of culturable Bacillaceae communities in these two types of coastal aquaculture ponds showed a massive difference. All the culturable Bacillaceae bacteria were identified as Bacillus in the artificial ponds, whereas the earthen ponds were dominated by Bacillus followed by Halobacillus. It is worth noting that the artificial ponds with a low Bacillaceae diversity displayed a high Bacillaceae concentration with a better water quality, whereas the earthen ponds with a higher Bacillaceae diversity and concentration displayed a higher risk of Vibrio infection, indicating that the Bacillaceae concentration than its diversity made a greater contribution to water purification and Vibrio control. This work besides providing a promising strategy for healthy coastal aquaculture by balancing the relationship between Bacillaceae concentration and its diversity also will lay a foundation for the development of probiotic Bacillaceae agents for wastewater purification and disease control.
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