The immunomodulatory effects of Qushi Jianpi Hewei Decoction (QJHD) for patients with COVID-19 by metagenomics and transcriptomic sequencing

A B S T R A C T Ethnopharmacological relevance Several studies have confirmed that intestinal microflora dysbiosis correlates with the severity of COVID-19 patients. Clinical meta-analysis and our data show that the circulating miRNAs like miRNA-146 and the levels of serum cytokines in the peripheral blood are closely related to mild to moderate COVID-19 patients. Despite the widespread use of traditional herbal medicine for COVID-19 in China, the mechanisms remain largely uncovered. Aim of the study We conducted an observational case-control study to verify the efficacy and safety of traditional Chinese herbal medicine Qushi Jianpi Hewei Decoction (QJHD) for mild to moderate COVID-19 patients, and investigated the potential biomolecular mechanisms through metagenomics and transcriptomic sequencing methods. Materials and methods QJHD was given orally twice a day individually for 14 to 28 days. A total of 10 patients were enrolled in the study and given QJHD. We observed advantages in clinical cure time rate, and the relief of gastrointestinal symptoms as compared with reports in the literature. The metagenomics sequencing data of fecal microflora and transcriptomic sequencing data of blood cell in patients with SARS-Cov-2 infection patients were selected compared to the healthy control donors. Results No serious adverse events were reported. Meanwhile, the transcriptome analysis showed a decrease of the hsa-miR-21-5p expression in peripheral blood without QJHD. The species composition analysis showed an increase in the expression of Faecalibacterium prausnitzii in the intestinal tract;The interleukin-10 (IL-10) expression also in COVID-19 patient decreased in peripheral blood compared with healthy control donors. And we found an improvement in these parameters in patients taking QJHD. Conclusions Our findings show that QJHD could improve clinical outcomes of mild to moderate COVID-19 patients, probably through beneficial immunomodulatory effects by regulating Faecalibacterium prausnitzii in the intestinal tract and hsa-miR-21 and IL-10 expression in peripheral blood. (chictr.org.cn, ChiCTR2000030305)

Occupational exposure to SARS-CoV-2 in burns treatment during the COVID-19 epidemic: Specific diagnosis and treatment protocol.

Epidemic prevention and control measures for the new coronavirus disease 2019 (COVID-19) has achieved significant results. As of 8 April 2020, 22,073 infection cases of COVID-19 among healthcare workers from 52 countries had been reported to WHO. COVID-19 has strong infectivity, high transmission speeds, and causes serious infection among healthcare worker. Burns are an acute-care condition, and burn treatment needs to be initiated before COVID-19 infection status can be excluded. The key step to infection prevention is to identify risk points of infection exposure, strengthen the protection against those risk points, and formulate an appropriate diagnosis and treatment protocol. Following an in-depth study of the latest literature on COVID-19 diagnosis and treatment, we reviewed the protocols surrounding hospitalization of patients with extensive burns (area≥50 %) in our hospital from February 2009 to February 2019 and, in accordance with the epidemiological characteristics of COVID-19, developed an algorithm for protection during diagnosis and treatment of burns. Therefore, the aspects of medical protection and the diagnosis and treatment of burns appear to be particularly important during the prevention and control of the COVID-19. This algorithm was followed for 4 patients who received emergency treatment in February 2020 and were hospitalized. All healthcare worker were protected according to the three-tiered protective measures, and there was no nosocomial infection. During the COVID-19 epidemic, the early stages of emergency treatment for patients with extensive burns requiring the establishment of venous access for rehydration, endotracheal intubation or tracheostomy, wound treatment, and surgery are the risk points for exposure to infection. The implementation of effective, appropriate-grade protection and formulation of practical treatment protocols can increase protection of healthcare worke and reduce the risk of COVID-19 infection exposure.