MicroRNA (miRNA) is a class of endogenous,single-stranded non-coding small RNA that contains 21 to 23 nucleotides and is widely distributed in eucaryon,miRNA plays an important regulatory role in cell proliferation,apoptosis,growth and development through the regulation of gene translation after transcription and expression,miRNA has a close relationship with pathogenesis and development of hepatocellular carcinoma.And in this process,part of miRNA acts as oncogenes or tumor suppressor genes.A number of miRNA,such as miR-30d,miR-221,miR-222 and miR-101,had been found to express abnormally in hepatoeellular carcinoma.Here we summarize the related progress in research of miRNA and hepatocellular carcinoma.

Objective To investigate the protective effects of magnesium sulfate on glutamate-induced neurotoxicity in cultured cochlear.Methods The cortis of newborn rats were cultivated in vitro. The cultured cochlear neurons were divided into glutamate group treated with 0.1 mmol?L-1 glutamate,magnesium sulfate group treated with different concentrations of magnesium sulfate(0.5,1.0,2.0 and 4.0 mmol?L-1) and combined group treated with glutamate and magnesium sulfate for 24 h. Immunofluorescence staining of Neurofilament 200kDa antibody was used to label spiral ganglion neuron(SGN) and the terminate of dendrites. The morphological changes of SGN were examined by fluorescent microscope and the amount of SGN was determined. In addition,the SGN was loaded with 10 ?mol?L-1 Fluo-3 /AM,and the intracellular Ca2+was measured by laser confocal scanning microscope (LCSM). Results Many SGN were smaller and swelling and vacuoles at the terminate of dendrites following glutamate treatment for 24 h. In combined group treated with glutamate and 0.5,1.0 and 2.0 mmol?L-1 of magnesium sulfate,the amounts of SGN increased compared with glutamate group(P

Objective To explore the changes of pentraxin-3(PTX-3) in the normal left ventricular ejection fraction of patients with heart failure in patients of hypertention heart disease and discuss its clinical significance .Methods 156 outpatients or inpa-tients of department of Cardiovascular ,Geriatrics ,firstly diagnosed primary hypertension ,of Wuchang hospital in WuHan City were selected as research objects .the subjects were divided into two groups based on the results of echocardiography :simple primary hy-pertension(PH) group(42 cases)and hypertention heart disease(HHD) group(114 cases) ,the latter group were divided into with-out syptom of heart failure-NHF subgroup(34 cases) ,with normal left ventricular ejection fraction and syptom of heart failure-HF-NEF subgroup(36 cases)and with decreasing left ventricular ejection fraction and symptoms of heart failure-HFREF subgroup(44 cases) .To measure and analysis the level of PTX-3 ,high sensitivity c-reactive protein (hs-CRP) ,N-terminal pro-brain natriuretic peptide(NT-proBNP) in the blood plasm .Results Compared to HHD group ,the level of PTX3 ,hs-CRP ,NT-proBNP was lower (P<0 .01) .The level of PTX3 ,hs-CRP ,NT-proBNP was increased from NHF group ,HFNEF group to HFREF group ,significance differences were seen between each group .The level of PTX3 was positively correlated to hs-CRP(r=0 .573 ,P<0 .01) ,and was positively correlated to NT-proBNP(r=0 .452 ,P<0 .01) .Conclusion PTX3 increases with the progress of patients with primary hypertention heart disease ,It can be used as a biomarker of heart failure in the patients of hypertention heart disease with normal left ventricular ejetion fraction .

Objective To explore the molecular mechanism by which promyelocytric leuxemia (PML) suppresses human gallbladder cancer cell line (GBC-SD) growth.Methods GBC-SD cells were infected by green fluorescent protein recombinant adenovirus (Ad-GFP), GFP-positive cells were examined by microscopy.Cultured gallbladder carcinoma cells (GBC-SD) were infected with Ad-PML or Ad-control.Cell death was detected by DNA laddering and TUNNEL analysis.Cell cycle was analyzed by flow cytometer.Results An infection efficiency of 100% can be achieved at a concentration of 100 multiplicity of infection (MOI).The growth rate of the Ad-PML-infected GBC-SD cells was significantly inhibited.DNA laddering was detected at 72 h post-infection.The amount of apoptotic cells significantly increased in the Ad-PML-infected GBC-SD cells without evident alterations in cell cycle distribution.Conclusion PML suppresses growth of human gallbladder cancer cell line GBC-SD by inducing apoptosis.

Objective:To explore the relationship among cardioversion ,cerebral infarction (CI) and N terminal pro brain natriuretic peptide (NT‐proBNP) level in patients with heart failure (HF) complicated atrial fibrillation (AF) . Methods :A total of 150 HF + AF patients received intravenous drip of amiodarone for cardioversion therapy .Ac‐cording to cardioversion results ,they were divided into cardioversion group (n=100 ) and non‐cardioversion group (n=50) ,NT‐proBNP level change was observed in two groups before and after cardioversion .According to CI on‐set or not ,patients were divided into CI group (n=20) and non‐CI group (n= 130) ,NT‐proBNP level was com‐pared between two groups before and after onset .Results :Within 48h after administration ,a total of 100 patients (66.67% ) recovered to sinus rhythm .Compared with before cardioversion ,NT‐proBNP level significantly reduced [(967.04 ± 366.16) pg/ml vs .(496.21 ± 142.54) pg/ml] after cardioversion in cardioversion group ,and was signifi‐cantly lower than that of non‐cardioversion group (996.76 ± 351.28) pg/ml , P<0.01 all . In CI group ,compared with small size CI group ,there were significant rise in NT‐proBNP level [ (784.21 ± 231.26) pg/ml vs .(1983.24 ± 32.96) pg/ml ,(3562.19 ± 1468.32) pg/ml] in medium and large size CI group , P< 0.05 or <0.01 .Conclusion:NT‐proBNP level at hospitalization possesses predictive value for drug cardioversion effect in HF + AF patients . NT‐proBNP level is related with CI onset .After acute CI ,the higher NT‐proBNP level is ,the larger infarct size is , the poorer prognosis is .

Objective To investigate the possible mechanism of natural killer cells(NK cells)in immune dysfunction in sepsis by monitoring the phenotype and function of periphery NK cells in patients with sepsis. Methods A retrospective study was conducted. The patients with systemic inflammatory response syndrome(SIRS,n=59)or sepsis(n=65)admitted to Department of Critical Care Medicine of Anhui Provincial Hospital from August 2011 to August 2013 were enrolled. Blood samples were collected within 48 hours after intensive care unit(ICU)admission,the phenotype and function of periphery NK cells were determined by flow cytometry. Twenty-eight healthy people served as controls. Results The proportion and number of peripheral blood CD3-CD56+NK cells in SIRS and sepsis groups were normal,and no statistical difference was found when compared with those of the healthy control group〔cell proportion:0.102±0.019,0.102±0.108 vs. 0.106±0.018,F=0.018,P=0.982;cell number(×106/L):182.46±65.98, 172.97±63.51 vs. 179.25±60.44,F=0.349,P=0.706〕. It was shown by NK cell degranulation detection that there was no significant difference in the expression of CD107 and interferon-γ(IFN-γ)secretion〔CD107:0.135±0.050,0.140±0.058,0.128±0.070,F=0.583,P=0.560;IFN-γ(kU/L):14.36±4.74,12.49±4.21, 13.45±5.04,F=1.616,P=0.202〕among healthy control group,SIRS group,and sepsis group. It was shown by antibody dependent cytotoxic effect(ADCC)test that there was no difference in the expression of CD107 among healthy control group,SIRS group,and sepsis group(0.574±0.166,0.643±0.165,0.581±0.157,F=0.808,P=0.448). When compared with healthy controls,the secretion of IFN-γwas increased in SIRS patients(kU/L:40.5±13.2 vs. 28.4±9.6,P=0.001),while reduced in sepsis patients(kU/L:19.8±6.7 vs. 28.4±9.6,P<0.01). Compared with SIRS group,only NK cell surface inhibitory receptors CD158e(KIR 3DL1)expression in sepsis group was significantly increased(0.203±0.057 vs. 0.079±0.021,t=15.762,P<0.001),and there were no significant differences in the other phenotype between the two groups. Compared with SIRS group,the IFN-γproduction of the sepsis group was significantly lowered(kU/L:0.280±0.040 vs. 0.310±0.038,t=3.390,P=0.009),and the level of IL-12 was also significantly decreased(ng/L:0.15±0.03 vs. 0.30±0.08,t=32.832,P<0.001). Conclusion It was showed by NK cell phenotype and function assay that the function of NK cells in patients with sepsis was impaired and led to a poor production of IFN-γ. The IFN-γmediated immune dysfunction may be a main reason for the disorder of NK cell function,which laid the foundation of the clinical immune intervention practice to improve to NK cell function.

The incident number and death toll of cardio-cerebrovascular diseases increase continuously in China.The impairment of arterial baroreflex (ABR) is closely related to the genesis and development of cardio-cerebrovascular diseases (such as hypertension and chronic heart failure).Barostim neoTM (by American CRVx.Inc) can reduce blood pressure and heart rate by electrically stimulating carotid sinus baroreceptors and activating baroreflex.Therefore, it can be used to treat resistant hypertension, heart failure and end-stage renal disease, etc.The mechanism of baroreflex activation therapy (BAT) includes inhibiting sympathetic nervous system and rennin-angiotensin system, and increasing the activity of vagus nerve.Thus it improves baroreflex sensitivity and heart rate variability, and restores the structure and function of key organs.

OBJECTIVETo investigate flavonoids from Artocarpus hypargyreus.

METHODThe compounds were isolated by various chromatographic methods and identified by spectroscopic analysis.

RESULTTen compounds were isolated and their structures were identified as artohypaflavone (1), brosimone H (2), artonin A (3), artocarpin (4), artopetelin B (5), (-)-epiafzelechin (6), oxyresveratrol (7), (+)-afzelechin (8), (+)-catechin (9), and (+)-afzelechin-3-O-alpha-L-rhamnopyranoside (10).

CONCLUSIONCompound 1 is a new isoprenylated flavone, while compounds 2, 4-6, and 8 were isolated from this plant for the first time.

Objective:To investigate the clinical characteristics of gastrointestinal symptoms in patients with coronavirus disease 2019 (COVID-19) during the whole disease process, and provide reference for etiological diagnosis and treatment.Methods:The clinical data of patients with COVID-19 admitted in the Infectious Diseases Branch of the First Affiliated Hospital of University of Science and Technology of China from January 22nd, 2020 to March 8th, 2020 were analyzed retrospectively. According to whether there were gastrointestinal symptoms (poor appetite, nausea/vomiting and diarrhea), all patients were divided into gastrointestinal symptom group and asymptomatic group. The characteristics of gastrointestinal symptoms, such as poor appetite, nausea, vomiting and diarrhea were counted and analyzed, and the correlation between gastrointestinal symptoms and gender, age, basic diseases, disease severity, laboratory examination and drug treatment were analyzed.Results:A total of 80 COVID-19 patients were involved, 43 cases (53.8%) presented with poor appetite, 17 cases (21.3%) had nausea and vomiting, and 33 cases (41.3%) had diarrhea. Among them, 5 cases, 1 case and 4 cases respectively preformed poor appetite, nausea/vomiting and diarrhea before admission, while the others experienced gastrointestinal symptoms within 48 hours after admission. Duration of poor appetite, nausea/vomiting and diarrhea (days) of all patients were 5.3±2.1, 2.2±1.0 and 1.4±0.9, respectively. The patients with poor appetite were older than those without symptoms (years old: 48.2±17.6 vs. 39.3±15.1), albumin (Alb) level and the lymphocytes ratio were lower than those in asymptomatic group [Alb (g/L): 39.8 (35.7, 45.1) vs. 46.1 (42.6, 49.4), lymphocytes ratio: 0.19 (0.09, 0.28) vs. 0.28 (0.17, 0.35)], while the neutrophil ratio, the levels of C-reactive protein (CRP), D-dimer, and lactate dehydrogenase (LDH) were higher than those in asymptomatic group [the neutrophil ratio: 0.74 (0.61, 0.85) vs. 0.64 (0.52, 0.76), CRP (mg/L): 21.4 (3.9, 52.9) vs. 5.6 (2.4, 14.0), D-dimer (mg/L): 0.2 (0.2, 0.5) vs. 0.2 (0.1, 0.3), LDH (μmol·s -1·L -1): 4.49 (3.59, 5.19) vs. 3.12 (2.77, 4.90)]; at the same time, more traditional Chinese medicine was used in the patients with gastrointestinal symptoms [65.1% (28/43) vs. 40.5% (15/37), all P < 0.05]. In addition, 14 cases of 18 patients with cardiovascular diseases presented with poor appetite, 7 patients had nausea and vomiting symptoms. All of the 3 patients with chronic kidney disease presented with poor appetite, nausea and vomiting, and 2 of them had diarrhea. Conclusions:The gastrointestinal symptoms in patients with COVID-19 are common. Whether it is caused by the virus or related drugs, diet and mental conditions, clinicians should analyze the causes of these symptoms timely, and then provide a better treatment for patients with COVID-19.