Objective:To study the effect of Qingyi Lidan Granule on the serum levels of high mobility group box 1 (HMGB 1),heat shock protein 70 (HSP70),heat shock protein 27 (HSP27) and interleukin-8 (IL-8) of patients with severe acute pancreatitis.Methods:From August 2015 to July 2016,84 patients with severe acute pancreatitis in our hospital were selected and randomly divided into the observation group and the control group according to random number,42 cases in each group.The control group was given routine treatment,and the observation group was treated by Qingyi Lidan Granule on the basis of control group.The recovery of blood amylase to normal time,white blood cell recovery to normal time,recovery of gastrointestinal function to normal time and relieving time of abdominal pain,serum levels of HMGB1,HSP70,HSP72 and IL-8 in both groups were observed and compared before and after treatment.Results:After treatment,the total clinical effective rate of observation group was significantly higher than that of the control group[92.86％ (39/42) vs 71.43％ (30/42)] (P＜0.05).The recovery of blood amylase to normal time,white blood cell recovery to normal time,recovery of gastrointestinal function to normal time and relieving time of abdominal pain in the observation group were significantly shorter than those of the control group (P ＜0.05).Before treatment,no significant difference was found in the serum levels of HMGB 1,HSP70,HSP72,IL-8 between groups (P＞0.05).After treatment,the serum levels ofHMGB1,HSP70,HSP72 and IL-8 in both groups were significantly lower than those before treatment (P＜0.05).The levels ofHMGB1,HSP70,HSP72 and IL-8 in the observation group were lower than those in the control group (P＜0.05).Conclusion:Qingyi Lidan Granule could effectively reduce the levels of serum HMGB 1,H SP70,HSP27 and IL-8 and enhance the clinical curative effect of patients with severe acute pancreatitis.

Objective To explore the ways of repairing the large long-bone and skin defects as single stage procedures. Methods Five clinic cases were studied, firstly, the arteriae fibularis were restructuered into one or two vaso-nasa which nourished the related fibula segments and the overlying skin, then, binding all of the fibula segments and turn it into a bulky bone with a periosteal vaso-nasa wraparound. The graft was rich in blood supply so osteogenesis activity was vigorous under the periostum, the interspace in the graft soon disappear and the graft increased in diameter gradually. Results All of the harvested skin flaps survived and the wound healed on schedule, besides, the involved fractures were union 1 year later and the grafts were strong enough for weight-bearing and walking 2 year later, Neither fracture occur nor morbidity was created at the donor site, No problem was caused at the ankle. Conclusions It's appropriate way to repair large long-bone and skin defects with a vascularized fibula segments complex transfer incorporationg the overlying skin that was supplied via the same peroneal vessel pedicle.

Objective To establish a diarrhea rat model using multiple-stimulating factors and choosing the best indexes to assess whether the model is consistent with the disease characteristics of liver -QI stagnation with spleen deficien-cy in traditional Chinese medicine .Methods Newborn SD rats were randomly divided into model group ( n=20 ) and control group (n=10).The rats of model group were stimulated by maternal separation , restraint stress and rectum acetic acid irritation, while the rats in control group were fed as normal .Weight changes, rectal sensitivity, Bristol scores and wa-ter content of feces and histology of the colon tissues were used as evaluation indexes to assess whether the model meets the demands for further studies .Results The rats in the model group showed loss of appetite , increase of water intake and u-rine reduction .Some rats showed increased activity , and even mania .Bristol scores and water content of feces were signifi-cantly higher than that of the control group , and the rectal sensitivity was significantly increased .The colon mucosa showed slightly thickened submucosal layer and mild inflammatory cell infiltration in the model rats .Conclusions The rat model established in this study is better to simulate the clinical manifestation of liver -QI stagnation with spleen deficiency in Chi-nese medicine , and may meet the demands of related researches of this disease .

Objective To study the expressions and significance of MRP and LRP in HCC. Methods The expressions of two genes were examined in three tissues (54 cases of HCC, 24 para cancer and 12 posthepatitis cirrhosis tissues) by SP immunohistochemical and PCR techniques. Results MRP and LRP were expressed in three tissues, with significantly higher rates in HCC than others (P

The aim of this study was to build a gene chip system with surface plasmon resonance (SPR) technique, for which Gamma-peptide nucleic acid (Gamma-PNA) functioned as a probe, in order to improve sensitivity and its specificity. With the use of self-assembled monolayer (SAM) technology, surface chemistry of two-dimensional structure was used. Gamma-PNA was designed according to the bioinformatics, and was plated on the SPR chip modified by SAM. Subsequently, relevant parameters of the experiment were ensured and optimized. The results showed that the performances of Gamma-PNA probe was little affected by the ion concentration of buffer, and it had a strong light signal in a stable state. As the ion concentration was 0, there were still good hybrid reactions; pH value had less influence upon Gamma-PNA probe, and acid environment of buffer could be better. Gamma-PNA probe combined with sensor technologies achieved made the probe with dispensable labels and real-time detection. It also improved the efficiency of the hybridization and the stability, providing the foundation for clinical application.
Nucleic Acid Hybridization ; Nucleic Acid Probes ; Oligonucleotide Array Sequence Analysis ; methods ; Peptide Nucleic Acids ; genetics ; Sensitivity and Specificity ; Surface Plasmon Resonance

The cyp51 primers and two pairs of mutant primers which removed different transmembrane region were designed based on Ustilago maydis cyp51 gene structure analysis. The full cyp51 DNA fragment as well as mutant cyp51 genes were amplified and cloned by using the total DNA from Ustilago maydis as template, then subcloned into different expression vectors. The recombinant expression plasmids were transformed into Escherichia coli BL21 (DE3), BL21 (DE3) pLysS and Rosetta (DE3) respectively. A series of experiments leads to the finding that only pET32-YH-35 could be highly expressed at the optimal condition of 30 degrees C induced with 0.5 mmol/L IPTG The expressed protein (CYP51) showed biological activity by spectra analysis of the protein binding to 4 standard fungicides and to 14 XF-synthetic fungicide compounds, and only one XF-synthetic fungicide compound (XF-113) was similar to standard fungicides in binding constant. This compound is promising to be a new effective antifungal drug. These results will facilitate the further study on the mechanism of pathogenic fungi CYP51 and pesticide molecules, and will provide a new idea for efficient design and development of new anti-fungal drugs.
Antifungal Agents ; isolation & purification ; Cloning, Molecular ; Cytochrome P-450 Enzyme System ; genetics ; metabolism ; Escherichia coli ; genetics ; metabolism ; Fungal Proteins ; genetics ; metabolism ; Plasmids ; genetics ; Recombinant Proteins ; genetics ; metabolism ; Sterol 14-Demethylase ; Ustilago ; enzymology ; genetics

Objective To evaluate the efficacy of precision therapy with direct-acting antiviral drugs (DAAs) for patients with chronic HCV gene type 1b infection.Methods One hundred and thirteen patients with chronic HCV genotype 1b infection admitted in the Department of Infectious Diseases of First Hospital of Shanxi Medical University from January 2018 to July 2019 were enrolled,including 89 patients with chronic hepatitis and 24 patients with cirrhosis.Different DAAs therapeutic schedule were taken based on liver function, kidney function, complication and treatment costs.Seventy-two patients were treated with pan-genotype drugs, including 43 patients treated with Sofosbuvir and Velpatasvir (SOF+VEL), 13 treated with Sofosbuvir and Ribavirin ( SOF +RBV), and 16 treated with Sofosbuvir and Daclatasvir ( SOF +DCV).Forty one patients were treated with specific genotype DAAs , including 15 treated with Ombitasvir and Dasabuvir (OBV+DSV), and 26 treated with Elbasvir and Grazoprevir tablets (EBR+GZR).Pair t test and Chi-square test were used to compare virological response rate , the liver function and the adverse reactions were observed.Results The super-rapid virological response (SRVR) rate with DAAs treatment at 1 week was 88.5%(100／113),and the rapid virological response ( RVR) at 4 weeks of treatment was 98.2%(111／113).There was no significant differences in SRVR and RVR among the patients treated with five treatment regimens (χ2 ＝5.95 and 1.04,P＞0.05), all the patients obtained complete early virological response (CEVR) at 12 weeks and sustained virological response ( SVR12) at 12 weeks after treatment. Besides, there were no significant differences in SRVR and RVR between pan-genotype and gene-specific drugs (χ2 ＝0.03 and 0.17, P＞0.05),both CEVR and SVR12 reached 100% in all patients.The liver transaminase levels were improved in patients undergoing pan-genotype or gene-specific drugs treatment. Mild adverse reactions were observed in 5 cases, hemolysis occurred in 1 patient and it was cured after replacement of drugs.Conclusion Both pan-genotype and specific genotypes of DAAs can achieve high virological response rates.Genotypic testing should be performed before antiviral therapy , in order to accurately select treatment options and to save costs.

Objective To investigate the expressions of platelet activation-dependent granule membrane protein and platelet-derived growth factor receptor-αB, and the ultra-microstructure changes of platelets in patients with acute ST-segment elevation myocardial infarction(STEMI). Method The expressions of platelet activationdependent granule of glycoprotein (CD62P)and platelet derived growth factor receptor αβ subtype (PDGFR-αβ)of platelets in peripheral blood in 36 patients with acute ST-segment elevation myocardial infarction(STEMI) hospitalized and another 34 healthy subjects over the same period (control group) were investigated by flow cytometry and data were analyzed. The changes of ultra microstructure and activity of blood platelets in those patients and control group were observed under the scanning electron microscope. Results The expressions of CD62P and PDGFR-αβin patients with STEMI group before treatment were (3.65 ± 1.87) % and (0.43 ± 0.39) %, respectively, and those after treatment were (0.96 ± 0.79) % and (0.28 ± 0. 24) %, respectively, whereas those in control group were (0.67 ± 0.35) % and (0.27 ± 0.22) %, respectively, which were much lower in control than those in patients with STEMI before treatment (P ＜ 0.01 or P ＜ 0.05) respectively. There were statistically significant differences in the expressions of CD62P and PDGFR-αβ in patients group between pre-treatment and posttreatment (P ＜0.01 or P ＜0.05), respectively. Obvious ultra-microstructure changes of platelet surface in patients with STEMI group were observed. Conclusions Due to platelet activation in AMI, the expressions of CD62P can be used as effective indicators for monitoring coronary heart disease, and the PDGFR-αβ can be used as a reference indicator. The platelet surface ultra-microstructure changes during platelet activation in patients with AMI can be found by scanning electron microscopy.

Objective: To investigate the effect of polycyclic aromatic hydrocarbons (PAHs) exposure on the level of histone H3Ser10 phosphorylation (p-H3S10) and DNA damage degree in peripheral blood lymphocyte (PBLCs). Method: 75 coke oven workers from Benxi steel plant in Liaoning Province of China (PAHs-exposed group) and local 50 hot rolling workers (control group) were recruited in this study with age, working years, labor intensity and high temperature for matching factors using cluster sampling method in 2014. HPLC-fluorescence was performed to determine the level of urinary 1-hydroxypyrene (1-OHP), DNA damage and specific histone modification were measured in PBLCs of the subjects through comet assay and ELISA assay, respectively. Linear regression model analysis was used to analyze the differences among PAHs exposure, DNA damage and p-H3S10 level in two groups. The Mediation analysis was used to analyze the regulated relationships between urinary 1-OHP, DNA damage and histone modification through the bootstrap method. Results: Age of the control and the exposed group were (45.32±8.32) and (43.87±5.67) years old (P=0.284). The concentration of urinary 1-OHP, OTM value, Tail DNA% and p-H3S10 level in exposure group were higher than that in control group, while the M (P₅-P₉₅) of p-H3S10 levels in control and exposed group were 2.21 (0.68-4.71), 4.54 (1.85-23.91) (P<0.001). The degree p-H3S10 level was increased after the subgroups which were (2.59±1.19)%, (3.24±2.81)%, (5.55±3.25)%, (8.77±7.84)%, respectively, divided by quantitated 1-OHP concentration as P₀-P₂₅, P₂₆-P₅₀, P₅₁-P₇₅ and P₇₆-P₁₀₀ (P<0.001). We also found the correlations between urinary 1-OHP and p-H3S10 level or OTM value or Tail DNA%, β (95%CI) were 0.264 (0.167-0.360), 0.500 (0.299-0.702), and 0.510 (0.384-0.671), respectively (P<0.001). Similar result was also observed between p-H3S10 level and OTM value or Tail DNA%, β (95%CI) were 0.149 (0.073-0.226) and 0.220 (0.132-0.308) (P<0.001). Moreover, the mediation effect value of DNA damage on PAHs induced p-H3S10 alteration was 0.054(P=0.040). Conclusion The results suggested that PAHs exposure could induce DNA damage and an increase in histone H3Ser10 phosphorylation in PBLCs. Particularly, the alteration of H3S10 phosphorylation may play an important role in regulating cell DNA damage repair.

TAM(tumor-associated macrophage)is a kind of immune cell in tumor microenvironment,which mainly exists in tumor matrix to mediate inflammatory reaction.Generally,TAM can be stimulated by different cytokines to polarize into M1 macrophage or M2 macrophage with different phenotypes.In the early stage of tumor,M1 macrophages in TAM exhibit pro-inflammatory and anti-tumor activities,while as tumor progresses,TAMs tend to polarize into M2 macrophages to play anti-inflammatory and tumor-promoting roles.A large number of studies have shown that TAM is closely related to tumor growth,invasion,metastasis and poor prognosis.Therefore,targeting TAM has become the focus of anti-tumor immunotherapy.This paper has summarized the origin of TAM,and introduced the specific roles of TAM in promoting tumor proliferation,angiogenesis,migration and invasion and the formation of immunosuppressive environment.At the same time,the research progress of TAM-targeted anti-tumor immu-notherapy in recent years was discussed from 3 aspects:inhibiting monocyte recruitment,promoting TAM apoptosis and reshaping TAM phenotype.