Objective To observe the anti-atherosclerosis effects of Guizhi Fuling Capsule. Methods 50 healthy SD male rats were randomly divided into 2 groups: normal group (n=12) and AS model group(n=38). The model of experimental AS rats was established by feeding high cholesterol diet and intraperitoneal injecting VitD3. The normal control group was fed by ordinary diet. AS model group was further divided into 3 groups randomly: AS group(n=12), control group (n= 12), and therapy group(n= 12). The therapy group was given Guizhi Fuling Capsule by intragastric administration.The control group was given simvastatin and captopril by intragastric administration. 0.9% NaCl was given to the AS group instead of Guizhi Fuling Capsule. The rats were killed at the 16th weekend, and their aorta arch and breast aorta were observed.Blood fat and serum levels of Endothelin-1 (ET-1), Nitric oxide (NO), high-sensitivity C-reactive protein (hs-CRP) were detected respectively. Immunohistochemistry technology was used for observing the expression of intercellular adhesion molecule- 1 (ICAM- 1 ) in breast aorta. Results The values of ET- 1, NO, hs-CRP and the amount of ICAM- 1 were (142.61 ±25.67)ng/ml, (66.05 ± 8.63) μmol/L, (2.86±0.40)mg/L, (0.29±0.05) in the normal group; (182.38±22.96)ng/ml, (28.70±4.49)μmol/L, (5.60±0.49)mg/L, (0.58±0.06)in the AS group; (154.37±21.11)ng/ml, (45.88±11.36)μmol/L, (3.66±0.34)mg/L, (0.37±0.04)in the control group and (152.13±23.23)ng/ml, (57.67±8.96)μmol/L, (3.70±0.40)mg/L, (0.36±0.04) in the therapy group respectively. The levels of ET-1, NO, hs-CRP and the amount of ICAM-1 have significant difference between the AS group and the normal group(P=2.47E-4, 6.02E-19, 1.11E-12, 2.51E-18). There was also significant difference between the control group and the AS group(P=0.005, 1.59E-14, 1.87E-5, 3.87E-14). The level of NO in the therapy group was higher than that in the control group (P=0.002). The levels of ET-1, hs-CRP and the amount of ICAM-1 did not have significant difference between the therapy group and the control group(P=0.81, 0.81, 0.48) Conclusion Guizhi Fuling Capsule has effects of Anti-atherosclerosis on rats with AS.

Objective To investigate the relationship between aggrecan and YKL-40 in knee articular cartilage of Sprague-Daw-lay(SD) rats with osteoarthritis (OA) .Methods Fifty-six healthy SD rats were randomly divided into 7 groups ,8 cases per group . The one side of knee joint was randomly selected for performing the anterior cruciate ligment transection (ACLT) and establishing the OA model .The rats in one group were randomly killed on the day of operation and at postoperative 0 ,2 ,4 ,8 ,12 ,16 ,20 weeks . The femoral condyle cartilage samples at different time periods in the operated side were collected for conducting safranin O /fast green staining and HE staining .Meanwhile ,the OA pathological grade was made out according to the modified Mankin scale .The expression of aggrecan and YKL-40 in the cartilage with different stages of OA were analyzed by the immunohistochemistry meth-od ,and the status of expression were measured by average optical density (AOD) .The correlation between aggrecan and YKL-40 was analyzed .Results With the aggravation of OA ,the expression of aggrecan was gradually reduced and the expression of YKL-40 was gradually increased .The differences during the early ,middle and late phases of OA had statistical significance (P<0 .05) . The expression of aggrecan was negatively correlated with the expression of YKL-40(P<0 .05) .Conclusion The level of aggrecan is gradually reduced with the aggravation of OA .Aggrecan is negatively correlated with the YKL-40 level ,which may reflect the dedifferentiation degree of joint chondrocyte to some extent .

Objective To explore the differences of gene expression of peripheral blood mononuclear cell (PBMC) between the anti-cyclic citrullinated peptide antibody (ACCPA) positive and ACCPA negative patients with rheumatoid arthritis (RA) by microarray analysis.Methods Total RNA was extracted from PBMC of 5 ACCPA positive and ACCPA negative patients with RA,and age-and sex-matched control subjects respectively.Ⅲumina oligonucleotide microarray was used to characterize 47231gene expression profile for each sample.Results Among the target genes,88 differentially expressed genes were identified in RA patients.Fifty-one up-regulated genes and 37 down-regulated genes were found in RA patients compared to those in control subjects (fold change＞1.5).The differential expression of genes were associated with apoptosis,cytokine,signal identification protein,chemotaxis factor etc.There were 20 differential expression genes between the ACCPA positive and ACCPA negative patients with RA,9 up-regulated genes and 11 downregulated genes were found.The differential expression genes were associated with protein biding,,translation control,signal identification protein,cell cycle,metabolism etc.Conclusion There are differential gene expression between the ACCPA positive and ACCPA negative patients with RA.Genes screened from the target such as IFI,KIR,CHI3L1 can provi-de important information for further study and treatment of RA.

Objective To reduce the incidence rate of hospital-wide indwelling needle catheter blockage through a nursing project.Methods We set up a nursing project team,conducted a cross-sectional survey to know the using status of hospital-wide catheter,and analyzed the reasons of catheter blockage by root cause analysis method. "Reducing the incidence rate of hospital-wide indwelling needle catheter blockage" was established as the theme;improvement activities of nursing project were planned and developed for six months;and improvement methods were developed and implemented.Results The incidence rate of hospital-wide indwelling needle catheter blockage reduced to 3.6% from 8.1% (χ2=752.177,P<0.01),which reaches the goal of controlling the incidence rate of catheter blockage below 4%,and continuously decreases month by month. After implementation,the score of knowledge questionnaire about indwelling needle catheter blockage of nurses in the wards increased from (78.23±7.14) to (96.4±1.48) (t=54.735,P<0.01).Conclusions The nursing project obviously improves the degree of mastering the knowledge about preventing blockage,and reduces the incidence rate of hospital-wide indwelling needle catheter blockage.

OBJECTIVETo study active constituents of Macropanax rosthornii in treating rheumatoid arthritis.

METHODSilica gel column chromatography, preparative HPLC and modern spectrum techniques were applied for a systematic study on chemical constituents contained in M. rosthornii.

RESULTTwelve compounds were separated from M. rosthornii and identified as serratagenic acid (1), serjanic acid (2), betulinic acid (3), 6beta-hydroxy-3-oxo-olean-12-en-28-oic acid (4), 3-O-alpha-L-arabinopyranosyl serratagenic acid (5), 3-O-alpha-L-arabinopyranosyl serratagenic acid-29-methyl ester (6) , 3-O-alpha-L-arabinopyranosyl serratagenic acid-28-O-beta-D-glucopyranosyl ester (7), scopoletin (8), beta-sitosterol (9), daucosterol (10), 3,4-dihydroxybenzoic acid (11), and stearic acid (12).

CONCLUSIONAbove compounds are separated from M. rosthornii for the first time.

The mini-midline catheter is a new technology for catheter placement that opens up a new field of peripheral venous access devices(PVADs)and plays an important role in the intravenous treatment of patients with fragile vasculature and difficult intravenous access(DIVA).Mini-midline catheter is more economical and easier to puncture than midline catheter,longer retention time than short cannula,lower catheter-related complications,it is the preferred solution for venous vascular access device(VAD)in short-to medium-term infusion and has been widely used in intravenous infusion abroad.Domestic research and application of this technology are still in the exploratory stage,and the specifications,guidelines and expert consensus for mini midline catheters have not yet been released,and there is a lack of standardized operation procedures,indications,contraindications and other guidelines.More studies with higher quality and multi-center linkage cooperation need to be carried out to provide a theoretical and practical basis for the formulation of industry standards for mini midline catheters in line with clinical practice.The definition,attributes,innovation,indications,advantages and disadvantages of the mini midline catheter were reviewed,so as to provide reference for clinical application.

OBJECTIVE To optimize the processing technology of honey bran-fried Atractylodis Rhizoma， and to compare the anti-gastric ulcer effect before and after processing. METHODS Combing with entropy-weight and technique for order preference by similarity to ideal solution model， L（9 34） orthogonal experiment design was adopted to optimize the processing technology of honey bran-fried Atractylodis Rhizoma using the comprehensive score of the contents of atractylone， β-cineole， atractylenolide Ⅲ and atractylodine as evaluation index， using the ratio of excipients to medicine， frying temperature and frying time as factors. The validation tests were conducted. The gastric ulcer model of mice was induced by intragastrical administration of anhydrous ethanol； using Compound aluminum hydroxide tablet as positive control， anti-gastric ulcer effect of Atractylodis Rhizoma was compared with that of honey bran-fried Atractylodis Rhizoma using the contents of serum inflammatory factors [interleukin-2 （IL-2）， IL-6， tumor necrosis factor-α （TNF-α）]， ulcer index and inhibitory rate of gastric ulcer as evaluation indexes. RESULTS The optimal processing technology of honey bran-fried Atractylodis Rhizoma was as follows：ratio of adjuvant and medicinal materials of 3∶10 （g/g）， frying temperature at 140 ℃ and frying time of 4 min. Results of 3 validation tests showed that the contents of 4 components （including atractylone）， in honey bran-fried Atractylodis Rhizoma processed by the optimal technology kept stable （RSDs were 3.47%-5.80%， n＝3）； the comprehensive scores were 95.53%-95.89% （RSD＝0.21%， n＝3）. Atractylodis Rhizoma and honey bran-fried Atractylodis Rhizoma could increase the serum content of IL-2 in mice， but reduce serum contents of IL-6 and TNF-α to varying degrees； honey bran-fried Atractylodis Rhizoma could significantly decrease its ulcer indexes （P＜0.05 or P＜ 0.01）； the improvement effect of honey bran-fried Atractylodis Rhizoma on the above indicators was generally better than that of the same dosage of Atractylodis Rhizoma （P＜0.05 or P＜ 0.01）. The inhibitory rates of low-dose， medium-dose and high-dose Atractylodis Rhizoma and honey bran-fried Atractylodis Rhizoma to gastric ulcer in mice were 9.18%， 19.30%， 30.70%， and 50.32%， 61.39%， 53.16%， respectively. CONCLUSIONS The optimal processing technology of honey bran-fried Atractylodis Rhizoma is stable and feasible， and the anti-gastric ulcer effect of Atractylodis Rhizoma has been enhanced after being fried with honey bran.

ObjectiveTo optimize the processing technology of honey bran-fried Rosae Laevigatae Fructus（h-RLF）， formulate relevant quality standards， and explore its improving effect and mechanism on mice with ulcerative colitis（UC） induced by dextran sodium sulfate（DSS）. MethodsTaking the content of polysaccharides and water-soluble extract as the indexes， L₉（3⁴） orthogonal test was used to optimize parameters of the amount of honey bran， frying time and frying temperature. The quality of 15 batches of h-RLF decoction pieces was evaluated according to the optimized process， and the inspection limit standard was preliminarily drawn up. Eighty SPF male Kunming mice were randomly divided into 8 groups， including the blank group， model group， mesalazine group（0.13 g·kg^-1）， RLF group（3.77 g·kg^-1）， bran-fried RLF group（3.77 g·kg^-1）， h-RLF low， medium and high dose groups（1.89， 3.77， 7.54 g·kg^-1）， with 10 mice in each group. The mice in the blank group were free to drink pure water， and the other groups were free to drink 3% DSS solution for 7 days to prepare UC mouse model. Each treatment group was given corresponding drugs by intragastric administration， and the blank and model groups were given equal volume of normal saline. The body weight of mice was recorded daily and the disease activity index（DAI） was calculated. After the administration， the colon tissues of mice were collected to observe the pathological changes by hematoxylin-eosin（HE） staining. The levels of tumor necrosis factor（TNF）-α， interleukin（IL）-1β， IL-6 and IL-10 in the colon of mice were detected by enzyme-linked immunosorbent assay（ELISA）. Western blot was used to detect the expression levels of phosphorylation nuclear transcription factor-κB p65（p-NF-κB p65）， Toll-like receptor 4（TLR4）， p-p38 mitogen-activated protein kinase（p-p38 MAPK）， p-extracellular signal-regulated kinase（p-ERK） and p-c-Jun N-terminal kinase（p-JNK） proteins in colon tissues. ResultsThe optimum processing technology of h-RLF was 20 g honey bran per 100 g RLF， and stir-frying at 200 ℃ for 8 min. The limit standard under the examination of h-RLF was preliminarily formulated as follows：the polysaccharide content should not be less than 25% based on anhydrous glucose（C₆H₁₂O₆）， the content of water-soluble extract should not be less than 38%， the moisture content should not be more than 12.0%， the total ash content should not be more than 5.0%， and the acid-insoluble ash content should not be more than 1.0%. The cluster heat map analysis showed that the quality of RLF from Huanggang， Hubei province was better. Animal experiments showed that compared with the blank group， the DAI score of the model group was significantly increased， the levels of TNF-α， IL-1β and IL-6 in the colon tissue were significantly increased， the IL-10 level was significantly decreased， the colonic mucosa was seriously damaged， accompanied by a large number of inflammatory cell infiltration， tissue congestion and a significant reduction in glands， and the expression levels of p-NF-κB p65， TLR4， p-p38 MAPK， p-ERK and p-JNK proteins were significantly increased（P<0.01）. Compared with the model group， each administration group could alleviate the symptoms of colonic ulcer， the structure of colonic crypt was basically intact， and the glands were arranged in an orderly manner. Among them， the high-dose group of h-RLF had a better effect， which could significantly reduce the DAI score and the levels of TNF-α， IL-1β and IL-6 in colon tissue（P<0.01）， and significantly increase the level of IL-10（P<0.01）， alleviate the colonic mucosal injury， and effectively inhibit the expression levels of p-NF-κB p65， TLR4， p-p38 MAPK， p-ERK and p-JNK proteins（P<0.01）. ConclusionThe key parameters of the processing technology of h-RLF are determined， and the optimized technology is stable and feasible. The established quality standard is simple and reliable， and can be used for the quality control. h-RLF can effectively alleviate DSS-induced UC， and its mechanism may be related to inhibiting the activation of NF-κB/TLR4/MAPK pathway.