Advances in online two-dimensional liquid chromatography for natural product screening / 药学学报

As a treasure resource of novel drug lead compounds, how to rapidly and high-efficiently screen and isolate active components from natural products is critical. Thanks to its high resolution, high automation and flexible integration, online two-dimensional liquid chromatography has great potential for screening active ingredients from complex matrices by integrating a highly specific bio-recognition process into a two-dimensional liquid chromatography system before, on or after the column separation. This review comprehensively summarized recent developments, applications and shortcomings of online two-dimensional liquid chromatography for natural product screening from different integration modes, including pre-column, on-column and post-column screening methods.

ncRNAs-mediated high expression of TICRR promotes tumor cell proliferation and migration and is correlated with poor prognosis and tumor immune infiltration of hepatocellular carcinoma.

TICRR is a regulatory factor of DNA replication with ToPBP1 interaction. At present, the underlying function and mechanisms of TICRR remain unclear in LIHC. Our objective was to assess the function and prognosis of TICRR in LIHC. We conducted a differential expression analysis, GO/KEGG, and GSEA enrichment analysis of TICRR in LIHC. We also carried out the gene frequency and SCNA of TICRR. We found that TICRR could serve as an independent prognostic marker in LIHC by univariate and multivariate analysis. In addition, we observed that TICRR was related to immune infiltration, and TICRR had positive correlation with PD1/PD-L1 and CTLA-4 in LIHC. The hsa-miR-126-3p/IPO9-AS1 may be the candidate ncRNAs to regulate the expression of TICRR. The high rate of SCNV of TICRR might have critical effect on the function of CTL cells in LIHC. We further demonstrate through a series of experiments that TICRR facilitated the proliferation and metastasis of liver cancer cells in vitro. Altogether, TICRR might be a potential biomarker and therapeutic target in LIHC.

Mindin serves as a tumour suppressor gene during colon cancer progression through MAPK/ERK signalling pathway in mice.

Mindin is important in broad spectrum of immune responses. On the other hand, we previously reported that mindin attenuated human colon cancer development by blocking angiogenesis through Egr-1-mediated regulation. However, the mice original mindin directly suppressed the syngenic colorectal cancer (CRC) growth in our recent study and we aimed to further define the role of mindin during CRC development in mice. We established the mouse syngeneic CRC CMT93 and CT26 WT cell lines with stable mindin knock-down or overexpression. These cells were also subcutaneously injected into C57BL/6 and BALB/c mice as well as established a colitis-associated colorectal cancer (CAC) mouse model treated with lentiviral-based overexpression and knocked-down of mindin. Furthermore, we generated mindin knockout mice using a CRISPR-Cas9 system with CAC model. Our data showed that overexpression of mindin suppressed cell proliferation in both of CMT93 and CT26 WT colon cancer cell lines, while the silencing of mindin promoted in vitro cell proliferation via the ERK and c-Fos pathways and cell cycle control. Moreover, the overexpression of mindin significantly suppressed in vivo tumour growth in both the subcutaneous transplantation and the AOM/DSS-induced CAC models. Consistently, the silencing of mindin reversed these in vivo observations. Expectedly, the tumour growth was promoted in the CAC model on mindin-deficient mice. Thus, mindin plays a direct tumour suppressive function during colon cancer progression and suggesting that mindin might be exploited as a therapeutic target for CRC.

The pattern-recognition molecule mindin binds integrin Mac-1 to promote macrophage phagocytosis via Syk activation and NF-κB p65 translocation.

Mindin has a broad spectrum of roles in the innate immune system, including in macrophage migration, antigen phagocytosis and cytokine production. Mindin functions as a pattern-recognition molecule for microbial pathogens. However, the underlying mechanisms of mindin-mediated phagocytosis and its exact membrane receptors are not well established. Herein, we generated mindin-deficient mice using the CRISPR-Cas9 system and show that peritoneal macrophages from mindin-deficient mice were severely defective in their ability to phagocytize E  coli. Phagocytosis was enhanced when E  coli or fluorescent particles were pre-incubated with mindin, indicating that mindin binds directly to bacteria or non-pathogen particles and promotes phagocytosis. We defined that 131 I-labelled mindin binds with integrin Mac-1 (CD11b/CD18), the F-spondin (FS)-fragment of mindin binds with the αM -I domain of Mac-1 and that mindin serves as a novel ligand of Mac-1. Blockade of the αM -I domain of Mac-1 using either a neutralizing antibody or si-Mac-1 efficiently blocked mindin-induced phagocytosis. Furthermore, mindin activated the Syk and MAPK signalling pathways and promoted NF-κB entry into the nucleus. Our data indicate that mindin binds with the integrin Mac-1 to promote macrophage phagocytosis through Syk activation and NF-κB p65 translocation, suggesting that the mindin/Mac-1 axis plays a critical role during innate immune responses.

Chemical constituents from fruiting bodies of Tremella sanguinea / 中国中药杂志

The chemical constituents from the fruiting bodies of Tremella sanguinea were separated and purified by column chromatography on silica gel,ODS,Sephadex LH-20,and RP-HPLC. The structures of the isolated compounds were identified on the basis of physicochemical properties and spectroscopic data analysis,as well as comparisons with the data reported in the literature. Sixteen compounds were isolated from the 90% ethanol extract of the fruiting bodies of T. sanguinea,which were identified as( 22 E)-5α,8α-epidioxy-24-methyl-cholesta-6,9( 11),22-trien-3β-ol( 1),( 22 E)-5α,8α-epidioxyergosta-6,22-dien-3β-ol( 2),cerevisterol( 3),ergosta-7-ene-3β,5α,6β-triol( 4),( 22 E)-6β-methoxyergosta-7,22-diene-3β,5α-diol( 5),ergosta-7-en-3β-ol( 6),4-hydroxy-methylincisterol( 7),2-pyrrolidone( 8),nicotinamide( 9),1-( 3-indolyl)-3-dihydroxypropan-1-one( 10),yangambin( 11),linoleic acid( 12),( 9 Z,12 Z,15 Z)-2,3-dihydroxypropyl octadeca-trienoate( 13),( 9 Z,12 Z)-2,3-dihydroxypropyl-octadeca-dienoate( 14),crypticin B( 15)and 3-phenyllactic acid( 16). All compounds were isolated from T. sanguinea for the first time. Except for compounds 6,9 and 12,the remained compounds were isolated from the genus Tremella for the first time.

Observation and nursing of the complications after the treatment of endoscopic retrograde cholangiopancreatography and endoscopic sphincterotomy combined with laparoscopic cholecystectomy for the patients suffered from gallstone disease combined with comm / 中国实用护理杂志

Objective The research aimed to probe into the complications of the treatment that endoscopic retrograde cholangiopancreatography and endoscopic sphincterotomy (ERCP/EST) combined with laparoscopic cholecystectomy (LC) for the patients suffered from gallstone disease combined with common bile duct stones and investigate the nursing methods.Methods One hundred and twenty-four patients suffered from gallstone disease combined with common bile duct stones were included in this retrospective analysis.At first,they underwent the treatment of ERCP/EST,and underwent LC in 1 to 5 days later.All the clinical data were collected and analyzed.Results Of all the patients,104 patients successfully underwent the treatment of ERCP/EST.And of the 104 patients,100 patients successfully underwent LC,the other 4 patients underwent open cholecystectomy.Nineteen complicated with acute pancreatitises,one with hemorrhage and two suffered from infections of bile duct were observed in this study.Conclusions Combination of ERCP/EST with LC is a safe and effective treatment for gallstone disease combined with common bile duct stones.The preoperative psychological counseling,and the surveillance and nursing of complications play significant roles in the successful treatment.

Efficacy of Gastrosis No.1 compound on functional dyspepsia of spleen and stomach deficiency-cold syndrome: a multi-center, double-blind, placebo-controlled clinical trial / 中国结合医学杂志

<p><b>OBJECTIVE</b>To assess the efficacy and safety of Gastrosis No.1 compound in the treatment of functional dyspepsia with Spleen (Pi) and Stomach (Wei) deficiency-cold syndrome.</p><p><b>METHODS</b>A randomized, double-blind, placebo-controlled trial was performed in 5 centers. Patients with functional dyspepsia (FD) of Spleen-deficiency and qi-stagnation syndrome (162 cases) were randomly assigned to groups given Chinese herbal medicine (CHM) Gastrosis No.1 compound or placebo in a 2:1 ratio. This trial included a 4-week treatment period and a 4-week follow-up period. The outcomes were the dyspepsia symptom scores (measured by total dyspepsia symptom scale and single dyspepsia symptom scale) and syndromes of traditional Chinese medicine score (measured by traditional Chinese medicine syndrome scale). The outcomes were noted at weeks 0, 4 and 8.</p><p><b>RESULTS</b>Compared with patients in the placebo group, patients in the CHM group showed significant improvement in the dyspepsia symptom scores as rated by patients and investigators (P <0.01), and also showed improvement in syndromes of traditional Chinese medicine score (P <0.01). No serious adverse event was reported. Safety tests obtained after 4 weeks of treatment showed no abnormal values.</p><p><b>CONCLUSION</b>CHM Gastrosis No.1 compound was effective and safe in the treatment of functional dyspepsia with Spleen and Stomach deficiency-cold syndrome.</p>

Early endoscopic treatment for acute biliary pancreatitis / 中华肝胆外科杂志

ObjectiveTo study the efficacy and safety of early endoscopic retrograde cholangiopancreatography(ERCP) and endoscopic sphincterotomy (EST) for patients with acute biliary pancreatitis.Methods420 patients who were admitted to our hospital for management of acute biliary pancreatitis were divided into early endoscopic therapy group (n=218 patients) and conservative therapy group (n=202 patients).The durations for complete disappearance of abdominal pain,decrease in serum and urine amylase levels to normal,liver function recovery time,white blood cell recovery time,and the mean duration and costs of hospitalizations were analyzed.ResultsIn the ERCP group,all patients received EST.The stones in 172 patients with choledocholithiasis were removed with dormia baskets or balloon catheters.In 20 patients with severe acute biliary pancreatitis,endoscopic pancreatic duct stents were inserted for drainage.The durations of complete disappearance of abdominal pain,decrease of serum and urine amylase values to normal,white blood cell recovery time,liver function recovery time,cost of hospitalization and duration of hospitalization were significantly shorter in the early ERCP group than the control group.The mortalities in the ERCP and the control groups were 8.0％ and 22.2％,respectively.Conclusions Early endoscopic management for patients with acute biliary pancreatitis was not only safe and efficacious,but the management helped to identify the underlying causes of pancreatitis and reduced the duration of hospital stay and expenses.

Endoscopic treatment in acute severe pancreatitis / 中国基层医药

Objective To study the effect of endoscopic treatment in acute severe pancreafitis. Methods EST(endoscopic sphincterepapiilotomy) and ENBD ( endoscopic naso-billary dralnage) or ENPD ( endoscopic naso-pancreatic drainage) were used to treat the acute severe pancreatitis(ASP). Results The recover time of blood dia-stase of the endoscopic therapy group and the contrast group was (3.2±1.5) days, (6.6±1.2) days, respectively (P<0.01) ; the incidence of needing to be operated was 0.7% (1/140), 6.5% (8/124), respectively (P<0.05) ;mortality rate was 0:7% (1/140) ,7. 3% (9/124) ,respectively(P <0. 01 ) ;the incidence of complication was 3.6% (5/140) ,41.9% (52/124), respecfivly(P<0.01). Conclusion EST + ENBD(or ENPD) in treating ASP has cer-tain effect and is the primary therapy to the ASP.

The use on curative effect of Chinese medicine Qingyitang in severe acute pancreatitis / 中国基层医药

Objective To study the use on curative effect of Chinese medicine Qingyitang in severe acute pancreatitis.Methods 132 cases of severe acute pancreatitis were randomly divided into 2 groups,The control group(n=62) and the treatment group(n=70).Routine treatment were given in both,otherwise,the Chinese medicine Qingyitang was used in the treatment group.The operation rate,the infection rate,the time of abdominal distension removing and fasting and being hospitalized were observed and compared between two groups.Results Every index of the treatment group was finer than the control group.Conclusions The Chinese medicine Qingyitang showes their protective effects on gut barrier function by alleviating the damage of intestinal mucosa and microecologic disturbance following acute pancreatitis.As a result,the chances of bacterial translocation and enterogenic infection declines.These preparation might raise the treatment effects,as a well,shorten the course of treatment.