In the pathological process of acute lung injury,uncontrolled inflammatory response will lead to severe consequences,and pyroptosis plays a vital factor in a cell programmed inflammatory necrosis.When the body is imbalanced due to excessive pyroptosis,it can lead to lung injury in the lungs.TCM emphasizes the balance of the body and the balance of yin and yang.Based on the"yin-yang"theory and"pathogenic factors and healthy qi"theory of TCM,this article discussed the yin-yang changes,growth and decline,and opposing constraints of cell pyroptosis in the occurrence and development of acute lung injury at the cellular level,and explained the possible basis of TCM in preventing and treating cell pyroptosis,providing theoretical reference for the intervention of TCM in the prevention and treatment of acute lung injury with cell pyroptosis.

In the pathological process of acute lung injury,uncontrolled inflammatory response will lead to severe consequences,and pyroptosis plays a vital factor in a cell programmed inflammatory necrosis.When the body is imbalanced due to excessive pyroptosis,it can lead to lung injury in the lungs.TCM emphasizes the balance of the body and the balance of yin and yang.Based on the"yin-yang"theory and"pathogenic factors and healthy qi"theory of TCM,this article discussed the yin-yang changes,growth and decline,and opposing constraints of cell pyroptosis in the occurrence and development of acute lung injury at the cellular level,and explained the possible basis of TCM in preventing and treating cell pyroptosis,providing theoretical reference for the intervention of TCM in the prevention and treatment of acute lung injury with cell pyroptosis.

Acute lung injury (ALI) is a common clinical critical respiratory disease. At present, the mechanism of the disease has not been fully elucidated, there is a lack of specific drugs in clinical practice and the mortality rate is high, which is a difficult problem in the medical field. In recent years, traditional Chinese medicine has exerted its unique advantages and efficacy in the prevention and treatment of ALI, which has aroused the attention of domestic and foreign scholars. Based on the theory of "Wei Qi Ying Xue", this paper discusses the current research status of prevention and treatment of ALI by traditional Chinese medicine, and analyzes its pathogenesis, clinical manifestations and corresponding analysis with TCM syndrome. According to the angle of "Wei Qi Ying Xue", the progress of syndrome differentiation and treatment is highly consistent with immune response, inflammatory response, oxidative stress and apoptosis, in order to find new ideas and medication for the prevention and treatment of ALI with integrated traditional Chinese and Western medicine.

Objective:To explore the difference of methylation of circRNA related m6A in early inflammation of silicosis and to elucidate the underlying molecular mechanism of circRNA involved in the process of silicosis.Methods:The activation markers of macrophages were detected by Western blotting (WB) in THP-1-derived macrophages. The cell viability was detected with CCK8, by which the stimulation concentration and time of silica were determined. The methylation of total RNA was determined by colorimetry, and the expression of RNA m6A methylase, demethylase and reading protein were detected by Western blotting in mouse model of silicosis. The differential expression of m6A modified circRNA in lung tissues form silicosis and control mice was obtained through Arraystar m6A circRNA epigenetic transcriptome Chip and verified by RT-PCR.Results:The concentration of SiO 2 at 50 μg/cm 2 had the most significant effect on the activation markers and activity of macrophages. Compared with the control group, SiO 2 increased the total RNA m6A level of macrophages, and there were significant differences in the expression of methylase METTL3 and reading protein YTDHF3. High throughput sequencing analysis showed that compared with the control group, the methylation levels of 132 circRNA m6A in the lung of silicosis model mice were increased, while the methylation levels of 296 circRNA m6A were decreased, and then the target circSLC2A13 was screened based on the basic expression. Further verification showed that SiO 2 significantly increased the expression of circSLC2A13 and m6A modification in macrophages. Conclusion:The methylation of circRNA m6A is involved in the activation of macrophages in early inflammation of silicosis.

Objective:To explore the difference of methylation of circRNA related m6A in early inflammation of silicosis and to elucidate the underlying molecular mechanism of circRNA involved in the process of silicosis.Methods:The activation markers of macrophages were detected by Western blotting (WB) in THP-1-derived macrophages. The cell viability was detected with CCK8, by which the stimulation concentration and time of silica were determined. The methylation of total RNA was determined by colorimetry, and the expression of RNA m6A methylase, demethylase and reading protein were detected by Western blotting in mouse model of silicosis. The differential expression of m6A modified circRNA in lung tissues form silicosis and control mice was obtained through Arraystar m6A circRNA epigenetic transcriptome Chip and verified by RT-PCR.Results:The concentration of SiO 2 at 50 μg/cm 2 had the most significant effect on the activation markers and activity of macrophages. Compared with the control group, SiO 2 increased the total RNA m6A level of macrophages, and there were significant differences in the expression of methylase METTL3 and reading protein YTDHF3. High throughput sequencing analysis showed that compared with the control group, the methylation levels of 132 circRNA m6A in the lung of silicosis model mice were increased, while the methylation levels of 296 circRNA m6A were decreased, and then the target circSLC2A13 was screened based on the basic expression. Further verification showed that SiO 2 significantly increased the expression of circSLC2A13 and m6A modification in macrophages. Conclusion:The methylation of circRNA m6A is involved in the activation of macrophages in early inflammation of silicosis.

Incontinentia pigmenti (IP) is an X-linked dominant disease affecting the skin, teeth, eyes and central nervous system caused by mutations in the IKBKG gene. 95% of patients are female. Skin rash is the prominent manifestation and main diagnostic basis of IP, while external skin damagesare often the factors affecting the prognosis of IP. The diagnostic criteria for IP have been updated in recent years, and Sanger sequencing remains the gold standard for the detection and analysis of IKBKG mutations. IP patients should be fully evaluated, and active treatment should be given if eye retinopathy and nervous system damage are found.

Since December 2019,severe acute respiratory syndrome coronavirus 2 has been found to be the culprit in the coronavirus disease 2019 (COVID-19),causing a global pandemic.Despite the existence of many vaccine programs,the number of confirmed cases and fatalities due to COVID-19 is still increasing.Furthermore,a number of variants have been reported.Because of the absence of approved anti-coronavirus drugs,the treatment and management of COVID-19 has become a global challenge.Under these circumstances,drug repurposing is an effective method to identify candidate drugs with a shorter cycle of clinical trials.Here,we summarize the current status of the application of drug repurposing in COVID-19,including drug repurposing based on virtual computer screening,network pharmacology,and bioactivity,which may be a beneficial COVID-19 treatment.

Objective To determine the proportion of CD4+ CD25+ regulatory T (Treg) cells,mRNA expression of the forkhead box protein 3 (Foxp3) gene,and DNA methylation status of the Foxp3 promoter in peripheral CD4+ T cells from patients with Henoch-Sch(o)nlein purpura.Methods Totally,20 inpatients with Henoch-Sch(o)nlein purpura and 20 healthy controls were enrolled from Department of Dermatology,the Second Xiangya Hospital of Central South University between 2015 and 2016,and there were no significant differences in the gender and age between the two groups (both P ＞ 0.05).CD4+ T cells were isolated from the peripheral blood samples of these subjects.Real-time fluorescence-based quantitative PCR was performed to detect the mRNA expression of the Foxp3 gene,flow cytometry to determine the proportion of CD4 + CD25+ Treg cells,and sodium bisulfite sequencing PCR (BSP) to determine the DNA methylation status of the Foxp3 promoter.Statistical analysis was carried out with SPSS16.0 software by using two-sample t test for the comparison between the two groups,and linear correlation analysis for evaluating the correlations of the DNA methylation status of the Foxp3 promoter with clinical severity scores and the proportion of CD4+CD25+ Treg cells.Results Compared with the healthy control group,the Henoch-Sch(o)nlein purpura group showed significantly decreased mRNA expression of the Foxp3 gene in CD4+ T cells (0.380 ± 0.226 vs.1,t =9.503,P ＜ 0.01),proportion of CD4+CD25+ Treg cells (1.668％ ± 0.959％ vs.2.741％ ± 1.131％,t =2.552,P ＜ 0.05),but significantly increased DNA methylation status of the Foxp3 promoter (0.712 ± 0.164 vs.0.453 ± 0.147,t =3.610,P ＜ 0.01).In the Henoch-Sch(o)nlein purpura group,the DNA methylation status of the Foxp3 promoter was negatively correlated with the percentage of CD4+CD25+ Treg cells (r =-0.490,P ＜ 0.05),but positively correlated with the clinical severity scores (r =0.486,P ＜ 0.05).The DNA methylation level of the Foxp3 promoter was significantly higher in the patients with renal impairment than in those without renal impairment (P ＜0.05).Conclusion The patients with Henoch-Sch(o)nlein purpura showed increased DNA methylation status of the Foxp3 promoter in CD4+ T cells,decreased mRNA expression of the Foxp3 gene and proportion of CD4+CD25+ Treg cells,which may be related to the occurrence of Henoch-Sch(o)nlein purpura,and affect disease development and prognosis.

Objective To investigate the clinical features and prognosis of Kaposi varicelliform eruption with severe complications. Methods The clinical data of one child with Kaposi varicelliform eruption with severe complications was retrospectively analyzed. The related literatures were reviewed. Results A 5-month-old boy presented with recurrent rash on the head and face for 3 months and aggravated for 3 days. The skin lesions showed a characteristic of typical dome-shaped blisters with hemorrhagic crusting. At admission, the boy suffered with severe hypoproteinemia, hypocalcemia, and electrolyte disorder. The hypocalcemia was aggravated gradually. On the fifth day of admission, the boy had fever, convulsions, and tachycardia. Blood culture showed methicillin-resistant Staphylococcus aureus (MASA) infection. The diagnosis of sepsis was confirmed. At that very day, the boy started to have coagulopathy, so Fusidic and Vancomycin for anti-infection, Acyclovir for antivirus, intravenous infusion immunoglobulin, albumin, cryoprecipitate, plasma and calcium gluconate were administered, supplied with albumin and blood coagulation factor. The boy's condition gradually became stable and discharged on the 19th day after admission. Conclusions When Kaposi varicelliform eruption is complicated with hypoproteinemia and hypocalcemia, the critical illness is indicated. Clinicians should be alerted to the existence of sepsis, coagulation disorders, even septic shock and disseminated intravascular coagulation.

Objective To observe the effects of continuous care on acute leukemia (AL) children with PICC in remission induction stage after discharge from hospital. Methods 102 AL children with PICC during July 2014 and December 2016 were enrolled and then were randomly divided into study group (n=52) and control group (n=50): the control group was given routine discharge guidance, and the study group received continuous care, which contained synchronous health education to children and parents before discharge, home visits, patient management through WeChat platform and lectures and psychological support. The parental care ability and quality of life of children after 3 months were evaluated, and PICC complications were recorded during intubation. Result The self-care ability,negative emotions like anxiety and depression and quality of life in the study group were all significantly improved as compared with the control group and the time for intubation was shorter and the total rate of complications lower as well(P<0.05). Conclusion Continuous nursing can significantly improve the parental self-care ability of the AL children with PICC after discharge,reduce complications from intubation and improve their quality of life and help to improve parent's the negative emotions.