Value of Pretreatment Inflammation-nutrition Score to Predict Non-response to Neoadjuvant Chemotherapy in Locally Advanced Rectal Cancer / 生物医学与环境科学（英文）

OBJECTIVE@#To investigate the value of pretreatment inflammatory-nutritional biomarkers in predicting the pathological response of locally advanced rectal cancer (LARC) after neoadjuvant chemotherapy (nCT).@*METHODS@#This retrospective study included eligible participants who underwent nCT followed by radical surgery. Pretreatment inflammatory nutritional biomarkers were calculated within one week prior to nCT. Correlations between biomarkers and pathological responses were analyzed. The cut-off values of the pretreatment biomarkers for predicting non-response were determined using receiver operating characteristic (ROC) curve analysis. The inflammation-nutrition score was calculated using the lymphocyte level, neutrophil-to-lymphocyte ratio (NLR), and prognostic nutritional index (PNI).@*RESULTS@#A total of 235 patients were retrospectively recruited between January 2017 and September 2022. Lower lymphocyte levels, lymphocyte monocyte ratio (LMR), and PNI, and higher NLR and platelet-to-lymphocyte ratio (PLR) were observed in patients without response. Multivariate logistic regression analysis revealed that NLR could independently predict non-response to nCT in patients with LARC. The sensitivity and specificity of the inflammation-nutrition score for predicting nonresponse were 71.2% and 61.7%, respectively.@*CONCLUSION@#The pretreatment inflammation-nutrition score is a practical parameter for predicting non-response to nCT in patients with LARC. Patients with high scores were more likely to respond poorly to nCT.

Expression and relevant bioinformatics analysis of miR-135b-5p in oral squamous cell carcinoma / 口腔疾病防治

Objective @# To observe the clinical significance of miR-135b-5p in oral squamous cell carcinoma (OSCC) tissues and to conduct a bioinformatics analysis of its predicted target genes.@*Methods @#The expression levels of miR-135b-5p in OSCC tissues and adjacent normal tissues were compared using data from TCGA and GEO databases, and the correlations of miR-135b-5p expression level with clinicopathologic characteristics were analyzed. Fresh tissues were collected in the clinic, and the expression of miR-135b-5p was verified by quantitative real-time PCR. The target genes with enriched pathways were analyzed by using bioinformatics methods. A protein-protein interaction network was constructed to screen hub genes.@*Results @#The expression levels of miR-135b-5p were significantly upregulated in OSCC tissues compared to adjacent normal tissues (P < 0.001) and had a good diagnostic capability (AUC=0.960, P < 0.001). The expression level of miR-135b-5p was positively correlated with histopathological grading (P=0.011). Enrichment analyses revealed that the target genes of miR-135b-5p were significantly associated with tumor-related signaling pathways, such as the calcium signaling pathway, the cGMP-PKG signaling pathway and the cAMP signaling pathway. Ten core target genes were obtained by screening: DLG2, ANK3, ERBB4, SCN2B, NBEA, GABRB2, ATP2B2, SNTA1, CACNA1D, and SPTBN4.@*Conclusion@#miR-135b-5p may act as an oncogene miRNA in OSCC and has the potential value of acting as a diagnostic biomarker and therapeutic target for OSCC.

Effect of Strong Light Stress on Growth, Physiological and Biochemical and Gene Expression of Key Enzymes in Atractylodes lancea / 中国实验方剂学杂志

Objective::To explore the effect of strong light stress on the growth, physiological and biochemical and key enzyme gene expression of the Atractylodes lancea, in order to provide the scientific basis for the standardized cultivation of the A. lancea. Method::The two-year-old A. lancea seedlings were taken as experimental materials. Poplar forest (light transmittance between 18.26%-36.04%) was taken as control group(ck). Different density shading networks were used to simulate different degrees of high light stress (51.10%, 80.73%, 100%) in late July. The growth state of A. lancea was observed. On the 0th, 5th, 10th, 15th, 20th days, the physiological and biochemical indexes of malondialdehyde (MDA) content, cell membrane permeability, proline (Pro) content, antioxidant enzyme activity and chlorophyll content in the leaves of A. lancea were measured. The relative expression levels of 3-hydroxy-3-methylglutarate monoacyl coenzyme A reductase (3-hydroxy-3-methylglutaryl coenzyme A, HMGR) and farnesyl pyrophosphate synthase gene (farnesyl pyrophosphate synthase, FPPS) in leaves of A. lancea under intense light stress were determined by real-time fluorescence quantitative PCR(Real-time PCR). Result::After strong light stress, the color of the leaves of A. lancea changed from dark green to light green and yellowish green, and the burn of leaves became more and more serious. The contents of MDA, conductivity and Pro showed an upward trend with the increase of transmittance. Peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) tended to increase first and then decrease. The chlorophyll content decreased with the increase of light transmittance. The relative expression of HMGR in leaves of A. lancea decreased with the increase of light transmittance, while FPPS increased first and then decreased. Conclusion::The results showed that A. lanceaa could alleviate the inhibition of strong light stress by increasing the activity of antioxidant enzymes and regulating the content of osmotic pressure under certain strong light stress. Excessively strong intensity light stress leads to disequilibrium of metabolic mechanism of A. lancea, and seriously inhibits the plant growth.

Advances on research of physical environment affecting stem cell differentiation in ligament tissue engineering / 中国骨伤

Ligament tissue engineering is currently a novel approach to the treatment of ligament injury, which can replace the deficiency of autografts. Ligament tissue engineering consists of four basic elements:seed cells, nanoscaffolds, growth factors, and mechanical stimulation. At present, the main problem in ligament tissue engineering is how to control seed cells to ligament cells more controllly. The study found that each physical property of the natural bio ligament and mechanical stimulation (uniaxial stretching) plays an important role in the differentiation of stem cells into ligament cells. Therefore, the design of nanofiber scaffolds must consider the elastic modulus of the material and the material. Structure(material arrangement, porosity and diameter, etc.), elastic modulus and material structure in different ranges will guide cells to differentiate into different lineages. Considering that the ligament is the main force-bearing tissue of the human body, mechanical stimulation is also essential for stem cell differentiation, especially uniaxial stretching, which best meets the stress of the ligament in the body. A large number of studies have found the frequency and amplitude of stretching. And time will also lead the cells to differentiate in different directions. RhoA/ROCK plays a regulatory role in cytoskeletal remodeling and cell differentiation. It is also found that RhoA/ROCK protein participates in the process of nanofiber arrangement and uniaxial stretching to guide stem cells to differentiate into ligament cells, specifically how to influence stem cell differentiation. It is not clear at present that understanding the effects of physical properties on stem cell differentiation and understanding the mechanism of action of RhoA/ROCK protein will provide a new theoretical basis for further optimization of ligament tissue engineering.

Role of systematic integration teaching reform at the basic medicine teaching stage in Chinese medical education system / 生理学报

Systematic integration teaching is a curriculum system focusing on organs and systems, which is an important direction of medical education reform in China. Based on the practice of integrated curriculum teaching in Dalian Medical University for more than 10 years, combined with the experience in 15 medical colleges and universities in China, this paper analyzed the modes of systematic integrated teaching at the basic medicine teaching stage for medical higher education, and specified the purpose and significance of this teaching reform. The results showed that: (1) The systematic integrated teaching is a well-accepted and widely used teaching mode in domestic medical colleges and universities, which mainly includes three types of methodologies, i.e., integration of basic medicine courses, integration of clinical medicine courses and integration of basic and clinical medicine courses. The systematic integrated teaching is carried out by reforming various teaching methods including problem-based learning (PBL), case-based learning (CBL) and team-based learning (TBL). (2) The systematic integration teaching at the basic medicine teaching stage can significantly optimize the transition between basic and clinical courses, promote the cooperation and exchange between basic and clinical teachers, and improve the medical students' knowledge construction and critical thinking, and teachers' teaching ability as well. (3) The systematic integration teaching concept of "Six focuses" and "Five combinations" effectively guides the design and implementation of the integrated curriculum at the basic medical teaching stage of Dalian Medical University. With the deepening and development of medical education system reform in China, giving full play to the respective advantages of the systematic integrated teaching and traditional single-subject teaching at the basic medicine stage, and strengthening the integration of basic and clinical courses will play an important role in optimizing medical education curriculum system with Chinese characteristics.

3, 4-seco-Labdane diterpenoids from the leaves of Callicarpa nudiflora with anti-inflammatory effects / 中国天然药物

Four new 3, 4-seco-labdane diterpenoids, nudiflopenes J-M, were isolated from the leaves of Callicarpa nudiflora along with six known compounds. The structures of these diterpenoids were determined by comprehensive spectroscopic analysis. All the isolated compounds were evaluated for their inhibitory effects on NO production in LPS-stimulated RPMs and RAW264.7 cells. The results suggest that nudiflopenes J-M and other four known compounds showed significant inhibitory effects against NO production comparable to the positive control dexamethasone.

Relationship between serum MMP-9 level and prognosis after radical resection for Hilar cholangiocarcinoma patients

Abstract Purpose: To analyze the preoperative serum matrix metalloproteinase-9 (MMP-9) levels and prognosis of patients with hilar cholangiocarcinoma (HC) undergoing radical resection. Methods: Preoperative serum MMP-9 levels in patients with HC undergoing radical resection were detected by enzyme-linked immunosorbent assay (ELISA). The ROC curve assay was used to analyze the preoperative serum MMP-9 level to determine the most valuable cut-off point. The relationship between MMP-9 and clinicopathological features of HC patients was analyzed. Kaplan-Meier method was used to analyze the prognostic factors, and COX regression model was used to analyze the independent risk factors affecting prognosis. Results: Preoperative serum MMP-9 levels were significantly elevated in the death patients compared with the survival patients. The most valuable cut-off point for preoperative serum MMP-9 for prognosis was 201.93 ng/mL. Preoperative serum MMP-9 was associated with Bismuth-Corlette classification) and lymph node metastasis. Kaplan-Meier analysis showed that MMP-9, Bismuth-Corlette classification, Lymph node metastasis, Portal vein invasion, Hepatic artery invasion, Liver invasion, Incised margin, and Preoperative biliary drainage were related to prognosis. Cox regression model confirmed that hepatic artery invasion, liver invasion, incised margin, and MMP-9 have the potential to independence predicate prognosis in HC patients. Conclusion: Preoperative serum MMP-9 has high predictive value for prognosis and is an independent influencing factor for the prognosis of patients with hilar cholangiocarcinoma.

Role of Ultrasound Lung Comets in the Diagnosis of Acute Heart Failure in Emergency Department: A Systematic Review and Meta-analysis / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>A new technique of transthoracic lung ultrasonography (TLS) has emerged and demonstrated promising results in acute heart failure diagnosis at an early stage. However, the diagnostic value of ultrasound lung comets (ULCs) for acute heart failure (AHF) performed in busy emergency department (ED) is uncertain. The present meta-analysis aimed to assess the diagnostic efficiency of ULCs in AHF.</p><p><b>METHODS</b>We conducted a search on online journal databases to collect the data on TLS performed for diagnosing AHF published up to the end of July 2017. The sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), and summary receiver operating characteristic (SROC) curve were calculated. The post-test probability of AHF was calculated by using Bayes analysis.</p><p><b>RESULTS</b>We enrolled a total of 15 studies involving 3,309 patients. The value of sensitivity, specificity, PLR, NLR, DOR, area under the SROC curve, and Q* index was 85%, 91%, 8.94, 0.14, 67.24, 0.9587, and 0.9026, respectively. We detected significant heterogeneity among included studies, and therefore, all these results were analyzed under the random-effect model. We also explored possible sources of heterogeneity among the studies by using meta-regression analysis. Results suggest that the time interval between patient's admission to bedside TLS examination was closely related to TLS accuracy.</p><p><b>CONCLUSION</b>This meta-analysis demonstrated that detecting ULCs is a convenient bedside tool and has high accuracy for early AHF diagnosis in ED. TLS could be recommended to be applied for early diagnosis of AHF in ED.</p>

Prokaryotic expression, function verification and immunoassay activity of farnesyl pyrophosphate synthase of Alisma orientale (Sam.) Juzep / 药学学报

Farnesyl pyrophosphate synthase of Alisma orientale (Sam.) Juzep. (AoFPPS) is considered as one of the important rate-limiting enzymes in the biosynthetic pathway of protostane triterpenes. In order to investigate the expression and function of AoFPPS, the gene (accession No. HQ724508) was cloned into a bacterial expression vector pCzn1, then the combined plasmid pCzn1-AoFPPS was transformed into Escherichia coli BL21, and a fusion protein was obtained after induction. The fusion protein was purified by Ni resin, and the function was verified through in vitro enzymatic reaction. High performance liquid chromatography (HPLC) analysis revealed that the products were able to catalyze the synthesis of farnesyl pyrophosphate (FPP). High purity recombinant protein was used to immunize New Zealand rabbits to generate a polyclonal antibody. The titer of the antibody was determined by enzyme linked immunosorbent assay (ELISA), and Western blot results demonstrated that the antibody could specifically recognize the AoFPPS protein in A. orientale (Sam.) Juzep. So,the method of rapid immunoassay to detect AoFPPS was established. This study lays the foundation for further study of the AoFPPS gene expression, regulation and mechanism of action in A. orientale (Sam.) Juzep., and it also provides a scientific basis on improving the quality of Alismatis Rhizoma using the plant genetic engineering.

Nutritional Status of Under-five Children from Urban Low-income Families in Xiangtan and Jilin in China / 华中科技大学学报（医学）（英德文版）

There have been many studies on the nutrition and the growth status of children from rural and remote western regions of China,whereas researches on children from urban low-income families are scarce.This study aimed to investigate the growth and nutritional status of children under five years of age from urban low-income families in China.There were 169 children aged 25-60 months recruited from Xiangtan and Jilin,two cities with a population of 2.81 million and 4.26 million respectively,in China in this cluster cross-sectional study.Data were collected on demographic and socioeconomic characteristics,the feeding practices and the incidence of anemia and diarrhea.The results showed that the prevalence of low birth weight and macrosomia was 7.l％ and 9.5％ for the two cities,respectively,which was higher than that for other cities in China (1.5％ and 5.9％).Of all the sampled children,14.6％ and 8.2％ suffered anemia and diarrhea,respectively.Multivariate analysis showed that legumes or nuts fed in a 24-h recall increased the risk of anemia (OR=4.9).Children whose caregivers began to introduce complementary foods relatively late would have high diarrhea prevalence (OR=1.4).In conclusion,the prevalence of anemia and diarrhea in under-five children from urban low-income families in China is relatively high.The growth and nutritional status of these children is greatly affected by feeding practices.A series of measures should be taken by relevant government departments to improve the health of these children.

Prokaryotic expression, functional identification of squalene synthase in Alisma orientale and its immunoassay study / 中国中药杂志

Squalene synthase of Alisma orientale catalyzes farnesyl diphosphate (FPP) to form squalene, which is the key regulatory enzyme of the carbon source flow to protostane triterpenes biosynthesis. For further research on the function and expression of AoSS gene, the open reading frame (ORF) of squalene synthase gene (accession no. JX866770) from A. orientale was subcloned into a prokaryotic expression vector pCzn1 and induced the expression of AoSS gene in Escherichia coli BL21(Roseta). The fusion protein was mainly in the form of inclusion bodies and purified to obtain high purity protein. By verifying its functionality through vitro enzymatic reaction, the results showed that the catalytic protein had the catalytic activity of FPP into squalene. In order to research the expression of AoSS in A. orientale, the purified protein was used to immunized rabbits to prepare polyclonal antibody which was then purified, the titer of the antibody was greater than 1∶51 200 by ELISA detection, and displayed good specificity by Western blotting. The prepared antibody was used for immunoassay of AoSS in different organs of A. orientale, and the results showed that the AoSS expression level was the highest in tubers, followed by leaves, and lowest in root. Successful construction of prokaryotic expression vector, validation of gene functions and establishment of rapid immunoassay lay the foundation for further researches on the function and regulation of AoSS gene, and also provide scientific basis on the application of the protostane triterpenes of A. orientale in the field of synthetic biology.

Synthesis and antifungal activities of N-1,3,4-thiadiazol-2-yl-4-oxo-thiochroman-2-yl-formamide derivatives / 药学学报

Thiochromanones and 1,3,4-thiadazoles as heterocyclic compounds have broad biological activities. In order to find novel compounds with antifungal bioactivity, substituted thiophenol and maleic anhydride were used to synthesize the intermediate 4-oxothiochromane-2-carboxylic acid. It was reacted with 2-amino-1,3,4-thiadiazol to get fourteen target compounds containing 1,3,4-thiadazole moiety. The structures of the obtained compounds were confirmed by 1H NMR, 13C NMR and HR-MS. All compounds were investigated for antifungal activity via microdilution broth method. The results showed that the target compounds 3a and 3c to Epidermophyton floccosum and Mucor racemosus exhibited better antifungal activity than the positive control fluconazole, in which the minimum inhibition concentration can reach 8 μg·mL-1 and 16 μg·mL-1. Compound 3e showed significant inhibitory activity to Helminthosporium maydis, Sclerotinia sclerotiorum and Botrytis cinerea compared with that of the positive control carbendazim. Compound 3b exhibited inhibitory activity to Helminthosporium maydis better than the positive control carbendazim.

Standardization of Type 2 Diabetes Outpatient Expenditure with Bundled Payment Method in China / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>In recent years, the prevalence of type 2 diabetes among Chinese population has been increasing by years, directly leading to an average annual growth rate of 19.90% of medical expenditure. Therefore, it is urgent to work on strategies to control the growth of medical expenditure on type 2 diabetes on the basis of the reality of China. Therefore, in this study, we explored the feasibility of implementing bundled payment in China through analyzing bundled payment standards of type 2 diabetes outpatient services.</p><p><b>METHODS</b>This study analyzed the outpatient expenditure on type 2 diabetes with Beijing Urban Employee's Basic Medical Insurance from 2010 to 2012. Based on the analysis of outpatient expenditure and its influential factors, we adopted decision tree approach to conduct a case-mix analysis. In the end, we built a case-mix model to calculate the standard expenditure and the upper limit of each combination.</p><p><b>RESULTS</b>We found that age, job status, and whether with complication were significant factors that influence outpatient expenditure for type 2 diabetes. Through the analysis of the decision tree, we used six variables (complication, age, diabetic foot, diabetic nephropathy, cardiac-cerebrovascular disease, and neuropathy) to group the cases, and obtained 11 case-mix groups.</p><p><b>CONCLUSIONS</b>We argued that it is feasible to implement bundled payment on type 2 diabetes outpatient services. Bundled payment is effective to control the increase of outpatient expenditure. Further improvements are needed for the implementation of bundled payment reimbursement standards, together with relevant policies and measures.</p>

Synthesis, biological activity and molecular docking research of N-{(4-oxo-thiochroman-3-yl)phenyl-methyl}acetamide derivatives as α-glucosidase inhibitors / 药学学报

In order to develop potent antidiabetic agents that have inhibitory effect to a-glucosidase, twelve β-acetamido ketone derivatives such as N-{[(substituted-4-oxo-thiochroman-3-yl)phenyl]-methyl}acetamide are designed and synthesized through one-pot Dakin-West reaction. Their chemical structures are confirmed by 1H NMR, 13C NMR, IR and HR-MS. In vitro α-glucosidase inhibition assays of compounds 4a-41 were carried out using glucose oxidase method. The result indicated that most of them possess inhibitory activity in vitro. Compound 4k showed the most potent inhibitory activity with 87.3% inhibition of α-glucosidase at the concentration of 5.39 mmol x L(-1). The structure-activity relationship of these β-acetamido ketone derivatives was discussed preliminarily. Moreover, the molecular docking method was used to study the interaction mode of compound 4k and α-glucosidase. Our results will be helpful for designing of α-glucosidase inhibitors in the future.

Synthesis, biological activity and molecular docking research of N-{(4-oxo-thiochroman-3-yl)phenyl-methyl}acetamide derivatives as α-glucosidase inhibitors / 药学学报

In order to develop potent antidiabetic agents that have inhibitory effect to α-glucosidase, twelve β-acetamido ketone derivatives such as N-{[(substituted-4-oxo-thiochroman-3-yl)phenyl]-methyl}acetamide are designed and synthesized through one-pot Dakin-West reaction. Their chemical structures are confirmed by 1H NMR, 13C NMR, IR and HR-MS. In vitro α-glucosidase inhibition assays of compounds 4a-4l were carried out using glucose oxidase method. The result indicated that most of them possess inhibitory activity in vitro. Compound 4k showed the most potent inhibitory activity with 87.3% inhibition of α-glucosidase at the concentration of 5.39 mmol·L-1. The structure-activity relationship of these β-acetamido ketone derivatives was discussed preliminarily. Moreover, the molecular docking method was used to study the interaction mode of compound 4k and α-glucosidase. Our results will be helpful for designing of α-glucosidase inhibitors in the future.

Comparative Study of Three Commonly Used Methods for Hospital Efficiency Analysis in Beijing Tertiary Public Hospitals, China / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Tertiary hospitals serve as the medical service center within the region and play an important role in the medical and health service system. They are also the key targets of public hospital reform in the new era in China. Through the reform of health system, the public hospital efficiency has changed remarkably. Therefore, this study aimed to provide some advice for efficiency assessment of public hospitals in China by comparing and analyzing the consistency of results obtained by three commonly used methods for examining hospital efficiency, that is, ratio analysis (RA), stochastic frontier analysis (SFA), and data envelopment analysis (DEA).</p><p><b>METHODS</b>The theoretical basis, operational processes, and the application status of RA, SFA, and DEA were learned through literature analysis. Then, the empirical analysis was conducted based on measured data from 51 tertiary public hospitals in Beijing from 2009 to 2011.</p><p><b>RESULTS</b>The average values of hospital efficiency calculated by SFA with index screening and principal component analysis (PCA) results and those calculated by DEA with index screening results were relatively stable. The efficiency of specialized hospitals was higher than that of general hospitals and that of traditional Chinese medicine hospitals. The results obtained by SFA with index screening results and the results obtained by SFA with PCA results showed a relatively high correlation (r-value in 2009, 2010, and 2011 were 0.869, 0.753, and 0.842, respectively, P < 0.01). The correlation between results obtained by DEA with index screening results and PCA results and results obtained by other methods showed statistical significance, but the correlation between results obtained by DEA with index screening results and PCA results was lower than that between results obtained by SFA with index screening results and PCA results.</p><p><b>CONCLUSIONS</b>RA is not suitable for multi-index evaluation of hospital efficiency. In the given conditions, SFA is a stable efficiency analysis method. In the evaluation of hospital efficiency, DEA combined with PCA should be adopted with caution due to its poor stability.</p>

Association between serum allergens and asthma in children / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the association between serum-specific immunoglobulin E (sIgE) allergens and asthma in children.</p><p><b>METHODS</b>The serum sIgE allergens were determined using Western blot in 2239 children aged 1-14 years, consisting of 1415 children with asthma alone and 824 children with non-allergic diseases between December 2004 and April 2013. The case-control models of asthma alone and non-allergic diseases were established. The association between allergens and asthma was investigated using multivariate logistic regression analysis.</p><p><b>RESULTS</b>In the 2239 children, 1028 children (45.91%) were serum sIgE-positive, and the allergen with the highest positive rate was house-dust mite (15.68%), followed by house dust (14.29%) and moulds (13.40%). The results of the case-control analysis showed that house-dust mite, moulds, house dust, and cashew nut/peanut/soybean were significantly associated with the development of asthma. House dust was associated with the development of asthma in the 1-2 years old group (P<0.05). House dust and house-dust mite as allergens were identified as the risk factors for the development of asthma in the 3-14 years old group (P<0.05). In the 6-14 years old group, moulds as allergens were identified as the risk factors for the development of asthma (P<0.05). House dust and house-dust mite as allergens increased the risk of asthma in boys and girls, while moulds and cashew nuts/peanuts/soybeans as allergens increased the risk of asthma in boys.</p><p><b>CONCLUSIONS</b>House-dust mite, house dust, and moulds are the most common allergens in children with asthma, and they are closely associated with the development of asthma.</p>

Effect of minimally invasive percutaneous plates versus interlocking intramedullary nailing in tibial shaft treatment for fractures in adults: A meta-analysis

OBJECTIVE: The aim of this article was to determine the effects of minimally invasive percutaneous plates versus interlocking intramedullary nailing in the treatment of tibial shaft fractures in adults. METHOD: Literature searches of the Cochrane Library, PubMed, EMBASE, the Chinese Biomedical Literature database, the CNKI database, Wanfang Data, and the Weipu Journal database were performed up to August 2013. Only randomized and quasi-randomized controlled clinical trials comparing the use of percutaneous plates and interlocking intramedullary nails for tibial shaft fractures were included. Data collection and extraction, quality assessment, and data analyses were performed according to the Cochrane standards. RESULTS: Eleven trials were included. Compared with interlocking intramedullary nailing, minimally invasive percutaneous plates shortened fracture healing time and resulted in lower rates of postoperative delayed union and pain. There was no significant difference between the two methods with regard to the rates of excellent and good Johner-Wruh scoring, the rate of reoperation, and other complications. CONCLUSIONS: Overall, insufficient evidence exists regarding the effects of minimally invasive percutaneous plates versus interlocking intramedullary nailing in the treatment of tibial shaft fractures in adults. Low-quality evidence suggests that minimally invasive percutaneous plates could shorten fracture healing time, decrease the rate of postoperative delayed union, and decrease pain levels compared with interlocking intramedullary nailing. There is no significant difference between the two groups in terms of functional recovery scores, reoperation, and other complications. Further research that includes high-quality randomized controlled, multicenter trials is required to compare the effects of minimally invasive percutaneous plates versus interlocking intramedullary nailing in the treatment of tibial shaft fractures in adults. .

Impact of directly compressed auxiliary materials on powder property of fermented cordyceps powder / 中国中药杂志

To investigate such physical indexes as hygroscopicity, angle of repose, bulk density, fillibility of compression of mixed powder of directly compressed auxiliary materials and fermented cordyceps powder by using micromeritic study methods. The results showed that spray-dried lactose Flowlac100 and microcrystalline cellulose Avicel PH102 had better effect in liquidity and compressibility on fermented cordyceps powder than pregelatinized starch. The study on the impact of directly compressed auxiliary materials on the powder property of fermented cordyceps powder had guiding significant to the research of fermented cordyceps powder tablets, and could provide basis for the development of fermented cordyceps powder tablets.

Evaluation of fluidized granulation technology of Jianwei Xiaoshi Tablet by multicriteria synthesizing grading method / 中草药

Objective: To explore the feasibility of multicriteria synthesizing grading method using in the optimization of the fluidized granulation technology for Jianwei Xiaoshi Tablet (JXT), and to provide a reference for fluidized granulation technology to spread and apply in the pelletization of materials with strong stickiness. Methods: Using orthogonal design, the property parameters of granule and tablet were measured, and the best process parameters were optimized. Results: The optimal process parameters were as follows: The inlet air temperature was 55°C, the inlet pressure was 8 kPa, the spray pressure was 30 kPa, and the flow rate of the liquid was 1.0-2.5 mL/min. Conclusion: The multicriteria synthesizing grading method used in optimizing the fluidized granulation technology of JXT is stable and feasible, and provides theory evidence for improving the productivity and product quality.