1.Construction of plasmids expressing Sars-CoV encoding proteins and their effects on transcription of hfgl2 prothrombinase.
Hongwu, WANG ; Meifang, HAN ; Huaning, YAO ; Zhanhui, WANG ; Dong, XI ; Weiming, YAN ; Jinlin, HOU ; Xiaoping, LUO ; Qin, NING
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(3):318-23
SARS coronavirus (SARS-CoV) is the etiologic agent of severe acute respiratory syndrome. The aim of this study was to construct Sars-CoV membrane (M), nucleocapsid (N) and spike 2 (S2) gene eukaryotic expression plasmids, and identify their expression in vitro. Gene fragments encoding N protein, M protein and S2 protein of SARS-CoV were amplified by PCR using cDNA obtained from lung samples of SARS patients as template, and subcloned into pcDNA3.1 vector to form eukaryotic expression plasmids. SARS-CoV protein eukaryotic expression plasmids were transfected respectively into CHO cells. Immunohistochemistry was employed to detect the expression of the structural proteins of SARS-CoV in transfected cells. SARS-CoV protein eukaryotic expression plasmids were successfully constructed by identification with digestion of restriction enzymes and sequencing. M, N and S2 proteins of SARS-CoV were detected in the cytoplasm of transfected CHO cells. It was concluded that these recombinant eukaryotic expression plasmids were constructed successfully, and SARS-CoV encoding proteins could activate transcription and expression of hfgl2 gene.
2. Management and clinical thinking of Coronavirus Disease 2019
Ke MA ; Tao CHEN ; Meifang HAN ; Wei GUO ; Qin NING
Chinese Journal of Hepatology 2020;28(0):E002-E002
In December 2019, the 2019 novel coronavirus pneumonia (NCP, officially named Coronavirus Disease 2019(COVID-19) by the World Health Organization) broke out in Wuhan, Hubei, and it quickly spread to the whole country and abroad. The situation was at stake. The sudden and serious COVID-19 epidemic has brought us a lot of urgent problems. How to effectively control the spread of COVID-19? When does the population infection rate rise to its peak? What will eventually be the number of infected patients? How to make early diagnosis? What effective antiviral drugs are available? How to effectively treat with existing drugs? Can it successfully improve the survival rate of critically patients? In response to the above questions, we put forward corresponding suggestions and reflections from the perspective of the infectious clinician.
3.Construction of Plasmids Expressing Sars-CoV Encoding Proteins and Their Effects on Transcription of Hfgl2 Prothrombinase
WANG HONGWU ; HAN MEIFANG ; YAO HUANING ; WANG ZHANHUI ; XI DONG ; YAN WEIMING ; HOU JINLIN ; LUO XIAOPING ; NING QIN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(3):318-323
smids were constructed suc-cessfully, and SARS-CoV encoding proteins could activate transcription and expression of hfgl2 gene.
4. Multicenter epidemiological investigation of hospitalized elderly, young and middle-aged patients with severe burn
Yong TANG ; Liangxi WANG ; Weiguo XIE ; Chuan′an SHEN ; Guanghua GUO ; Junjie CHEN ; Chunmao HAN ; Licheng REN ; Zhigang CHU ; Meifang YIN ; Yuan WANG ; Dongxia ZHANG ; Yuesheng HUANG ; Jiaping ZHANG
Chinese Journal of Burns 2017;33(9):537-544
Objective:
To compare and analyze the epidemiological characteristics of hospitalized elderly, young and middle-aged patients with severe burn in recent years, so as to provide reference for the prevention and treatment of elderly patients with severe burn.
Methods:
Relying on the entry system of epidemiological case data and biological sample of severe burn from multicenter in clinic, medical records of patients with severe burn, aged above 18, hospitalized in 8 burn wards from January 2012 to December 2015 were collected. Six hundred and fifteen patients who were more than 18 years old and less than or equal to 65 years old were included in young and middle-aged group (YM). Eighty-two patients aged more than 65 years old were included in elderly group (E). Data of age, gender, residence, education level, cause of injury, location of injury, season of injury, total burn area, occurrence and area of full-thickness burn injury, wound site, inhalation injury incidence and severity, post burn admission time, proportion of delayed resuscitation, proportion of escharectomy or tangential excision and skin grafting, preinjury systemic disease, system complication during hospitalization, length of hospital stay, outcome of treatment, and reason of abandoning treatment of patients were analyzed. Data were processed with chi-square test and Mann-Whitney
5.Expert consensus on diagnosis and treatment of severe fever with thrombocytopenia syndrome
Guang CHEN ; Tao CHEN ; Sainan SHU ; Ke MA ; Xiaojing WANG ; Di WU ; Hongwu WANG ; Meifang HAN ; Xiaojuan JIA ; Mingyuan LIU ; Xiaolei LIU ; Yuanyuan LI ; Xianfeng ZHANG ; Jiazhi LIAO ; Feng FANG ; Xiaoping LUO ; Qin NING
Chinese Journal of Clinical Infectious Diseases 2022;15(4):253-263
Since 2010, the incidence of severe fever with thrombocytopenia syndrome (SFTS) has been increased. Owing the progress in diagnosis and treatment, the overall mortality of SFTS in China has decreased, while the mortality in critical SFTS patients is still high. In order to provide guidance and working procedures for clinicians to diagnose and treat critical SFTS, the National Medical Center for Major Public Health Events invited experts to discuss and formulate this consensus based on their experience and up-to-date knowledge on SFTS.
6.Quick guideline for diagnosis and treatment of novel coronavirus Omicron variant infection
Guang CHEN ; Tao CHEN ; Sainan SHU ; Xiaojing WANG ; Ke MA ; Di WU ; Hongwu WANG ; Yan LIU ; Wei GUO ; Meifang HAN ; Jianxin SONG ; Tonglin LIU ; Shusheng LI ; Jianping ZHAO ; Yuancheng HUANG ; Yong XIONG ; Zuojiong GONG ; Qiaoxia TONG ; Jiazhi LIAO ; Feng FANG ; Xiaoping LUO ; Qin NING
Chinese Journal of Clinical Infectious Diseases 2023;16(1):26-32
Novel coronavirus Omicron variant infection can cause severe illness and even death in certain populations. Omicron variant infection may lead to systemic inflammatory response, coagulation disorder, multi-organ dysfunction and other pathophysiological changes, which are different from other Novel coronavirus variants to a certain extent, so therapeutic strategies should not be the same. The National Medical Center for Major Public Health Events invited experts in fields of infectious diseases, respiratory medicine, intensive care, pediatrics and fever clinic to develop this quick guideline based on the current best evidence and extensive clinical practices. This quick guideline aims to standardize the diagnosis and treatment of novel coronavirus Omicron infection, and to improve the disease management abilities of clinicians.
7. Relationship between the suppressor of cytokine signaling 3 expression and antiviral efficacy of nucleos(t)ide and interferon alpha therapy for chronic hepatitis B
Yongli WANG ; Wenyu WU ; Jie YOU ; Weiming YAN ; Xiaoping LUO ; Qin NING ; Meifang HAN
Chinese Journal of Hepatology 2019;27(1):27-32
Objective:
To investigate the molecular mechanism of poor response of nucleoside and interferon therapy in some patients with chronic hepatitis B (CHB) and the negative regulatory factor of suppressor of cytokine signaling 3 (SOCS3) expression in the interferon-signaling pathway. Also, study the clinical relationship between SOCS3 and antiviral efficacy of nucleoside and interferon.
Methods:
Peripheral blood and matched liver tissue samples from 54 CHB patients who participated in the OSST study were selected. HBsAg was measured at different time points (baseline and weeks 12, 24, 36, and 48) to observe the antiviral efficacy. Meanwhile, quantitative real-time PCR, and immunohistochemistry were used to detect the expression levels of SOCS3 mRNA in peripheral blood mononuclear cells (PBMCs) and matched liver tissues (baseline and 48 weeks). At the end of the 48-week treatment, patients with HBsAg negative or HBeAg seroconversion were defined as response group, and vice versa. Paired t-tests were used to compare normal distribution variables and the Mann-Whitney U test was used to compare the median differences between groups of non-normally distributed variables.
Results:
After 48 weeks of treatment, serum HBsAg levels in the Peg-IFN group continued to decline (average decrease of 1.14 log10 IU / ml at week 48;
8.Metabolic syndrome increases Framingham risk score of patients with type 2 diabetes mellitus.
Yao MEIFANG ; Sun XUE ; Han JUE ; T U YINA ; H E JIE ; Zhao YIMING ; Lou HANYU ; Pang XIAOHONG ; Zeng WENHENG ; Zhang SONGZHAO ; Shan PENGFEI
Journal of Zhejiang University. Medical sciences 2016;45(3):268-274
OBJECTIVETo assess the impact of metabolic syndrome(MS) on Framingham risk score(FRS) in patients with type 2 diabetes mellitus (T2DM).
METHODSThe anthropometric and biochemical data of 1708 patients with T2DM admitted in hospital from May 2008 to April 2013 were retrospectively analyzed, including 902 males and 806 females with a mean age of 57.1±11.8 years (20-79 years). Diagnosis of MS was made according to the criteria of the Adult Treatment Panel Ⅲ Criteria modified for Asians.
RESULTSCompared to non-MS/T2DM patients, MS/T2DM patients had higher waist circumference, body weight, body mass index, systolic and diastolic blood pressure, fasting C peptide, total cholesterol, triglyceride, and LDL-C (P<0.05), while lower HDL-C (P<0.01). Both FRS [13.0(10.0, 15.0) vs 11.0(9.0, 13.0) in male,15.0(12.0, 18.0) vs 12.0(6.0, 14.8) in female,P<0.01)] and 10-year cardiovascular risk [12.0%(6.0%, 20.0%) vs 8.0%(5.0%,12.0%) in male,3.0%(1.0%, 6.0%) vs 1.0%(0.0%, 2.8%) in female,P<0.01] were higher in MS/T2DM patients than those in non-MS/T2DM patients.Both FRS and 10-year cardiovascular risk were increased with the components of MS.
CONCLUSIONT2DM patients with MS have more cardiovascular risk factors, higher FRS and 10-year cardiovascular risk.
9.Antibiotics-mediated intestinal microbiome perturbation aggravates tacrolimus-induced glucose disorders in mice.
Yuqiu HAN ; Xiangyang JIANG ; Qi LING ; Li WU ; Pin WU ; Ruiqi TANG ; Xiaowei XU ; Meifang YANG ; Lijiang ZHANG ; Weiwei ZHU ; Baohong WANG ; Lanjuan LI
Frontiers of Medicine 2019;13(4):471-481
Both immunosuppressants and antibiotics (ABX) are indispensable for transplant patients. However, the former increases the risk of new-onset diabetes, whereas the latter impacts intestinal microbiota (IM). It is still unclear whether and how the interaction between immunosuppressants and ABX alters the IM and thus leads to glucose metabolism disorders. This study examined the alterations of glucose and lipid metabolism and IM in mice exposed to tacrolimus (TAC) with or without ABX. We found that ABX further aggravated TAC-induced glucose tolerance and increased insulin secretion. Combined treatment resulted in exacerbated lipid accumulation in the liver. TAC-altered microbial community was further amplified by ABX administration, as characterized by reductions in phylum Firmicutes, family Lachnospiraceae, and genus Coprococcus. Analyses based on the metagenomic profiles revealed that ABX augmented the effect of TAC on microbial metabolic function mostly related to lipid metabolism. The altered components of gut microbiome and predicted microbial functional profiles showed significant correlation with hepatic lipid accumulation and glucose disorders. In conclusion, ABX aggravated the effect of TAC on the microbiome and its metabolic capacities, which might contribute to hepatic lipid accumulation and glucose disorders. These findings suggest that the ABX-altered microbiome can amplify the diabetogenic effect of TAC and could be a novel therapeutic target for patients.