Association between primary sclerosing cholangitis and the risk of colorectal cancer: A two-sample Mendelian randomization study / 临床肝胆病杂志

Objective To investigate the association between primary sclerosing cholangitis (PSC) and colorectal cancer (CRC) by using two-sample Mendelian randomization (TSMR). Methods The single nucleotide polymorphism (SNP) data associated with PSC and CRC were obtained from Finland Biobank and UK Biobank, respectively. A secondary data analysis was performed for all pooled data based on genome-wide association studies to select the genetic loci closely associated with PSC as instrumental variables, and TSMR was conducted by seven methods, i.e., Egger regression in Mendelian randomization, weighted median, inverse variance weighted (IVW) random effects model, maximum likelihood, linear weighted median, IVW radial method, and IVW fixed effects model. Odds ratio (OR) value was used to evaluate the causal relationship between PSC and the risk of CRC. Results There was a positive causal relationship between gene predicted PSC and CRC, and with the IVW fixed effects model as an example, genetically determined patients with PSC could increase the risk of CRC ( OR =1.002 243, 95% confidence interval: 1.001 319-1.003 167). TSMR results showed no heterogeneity ( P =0.87) or horizontal pleiotropy ( P =0.95). The three instrumental variables selected for PSC were strong instrumental variables ( F =11.86). Conclusion TSMR shows the genetic evidence for the association between PSC and the risk of CRC. Regardless of the presence or absence of inflammatory bowel disease, active enteroscopy screening among patients with PSC may help with the early identification and timely intervention of CRC.

Research progress of protective dressing on prevention of pressure injury of sacrum / 中国实用护理杂志

The sacrum is a common site of stress injury. The occurrence of pressure ulcers not only leads to the aggravation of the patient′s condition, the prolongation of hospital stay, the increase of medical costs, the decline of life quality, but also aggravates the burden of society, family and medical staff. Early reasonable and effective application of sacral dressing can prevent the occurrence of pressure injury. In this study, the characteristics and effectiveness of different types of sacral dressings were reviewed by reviewing relevant literatures at home and abroad and summarizing the existing relevant studies, so as to provide guidance for clinical application.

Effects of proton and heavy ion radiotherapy on nutritional status and adverse events in patients with malignant tumor / 中华临床营养杂志

Objective:To understand the effects of proton and heavy ion radiotherapy on nutritional status in patients with malignant tumors and to analyze the influencing factors of adverse events.Methods:Patients with malignant tumors who received proton and heavy ion therapy between October 2016 and September 2021were retrospectively included. The demographic characteristics, clinical diagnosis, radiotherapy regimen, nutritional indicators and adverse events were collected. Paired t test was used to analyze the changes in nutritional status before and after treatment and logistic regression was used to analyze the influencing factors of adverse events. Results:A total of 2,390 patients were enrolled and were stratified into 4 groups according to different radiotherapy regimen, namely proton, heavy ion, proton + heavy ion and photon + heavy ion radiotherapies. The prevalence of nutritional risk were 17.5% and 27.8% at admission and discharge, respectively. The prevalence of nutritional risk at discharge were 73.9% ( χ2 = 237.149, P < 0.01) in patients who received photon + heavy ion radiotherapy and 30.8% ( χ2 = 36.925, P < 0.01) in those who received proton + heavy ion radiotherapy. The prevalence of critical weight loss at discharge was 14.1%, with the absolute weight loss of 4.84 kg ( t = 11.716, P < 0.01) and 1.52 kg ( t = 29.530, P < 0.01) in photon + heavy ion radiotherapy and proton + heavy ion radiotherapy groups, respectively. All groups showed significant changes in serum albumin (ALB) and total lymphocyte count (TLC). Specifically, photon + heavy ion and proton + heavy ion therapy had a greater effect on serum ALB and TLC, with a decrease of 2.88 g/L and 2.18 g/L for ALB as well as a decrease of (1.06×10 9) /L and (0.80×10 9) /L for TLC ( P < 0.01). Multivariate logistic regression analysis showed that nutritional risk at admission and concurrent chemotherapy were independent factors for adverse events of proton and heavy ion radiotherapy ( OR = 1.404, 95% CI: 1.039 to 1.898; OR = 2.370, 95% CI: 1.781 to 3.154). Compared with heavy ion radiotherapy, the other 3 groups had more adverse events (proton, OR = 3.982, 95% CI: 2.533 to 6.259; proton + heavy ion, OR = 4.995, 95% CI: 3.688 to 6.766; photon + heavy ion, OR = 7.716, 95% CI: 5.079 to 11.720). Conclusions:Patients receiving proton and heavy ion therapy showed poorer nutritional status. Photon + heavy ion therapy had the greatest impact on nutritional status. Nutritional risk at admission and concurrent chemotherapy were independent factors for adverse events in patients receiving proton and heavy ion therapy.

Application of capillary electrophoresis in the diagnosis and differential diagnosis of benign and malignant monoclonal gammopathies / 中华检验医学杂志

Objective:To evaluate the value of capillary electrophoresis in the diagnosis and differential diagnosis of benign and malignant monoclonal gammopathies (MGs).Methods:A retrospective analysis of the capillary electrophoresis test results of 2 445 newly diagnosed patients at the Affiliated Hospital of Qingdao University from January 2016 to June 2020 was carried out. Capillary zone electrophoresis and immunosubtractive assay were used to detect serum monoclonal protein (MP). The clinical diagnosis and other information of the patients were collected from the clinical database of the Affiliated Hospital of Qingdao University. Kruskal-Wallis rank sum test was used to compare the different amount of monoclonal protein among multiple groups. Receiver operator characteristic curve (ROC) was used to analyze the diagnostic sensitivity and specificity of the monoclonal protein of each type. Youden index was used to calculate the cut-off values.Results:Among the 2 445 patients, 1 183 were positive for monoclonal protein, of which 944 cases were diagnosed as malignant MG, 174 were monoclonal gammopathy of undetermined significance (MGUS), and 65 cases were monoclonal gammopathy of renal significance (MGRS). The percentages of M protein types from high to low is immunoglobulin G(IgG)-κ, IgG-λ, IgA-λ, IgA-κ, free λ light chain, free κ light chain, IgM-κ, double clone, and IgM-λ. The levels of MP of IgG, IgA, IgM and FLC in the malignant MG group were all higher than those in the MGUS group, with statistical significance( P<0.01). The MP levels of IgG and IgA types in malignant MG group were higher than that in MGRS group ( P<0.01). ROC curve analysis showed that the MP of IgG, IgA, IgM and FLC types had good diagnostic efficacy for malignant MG ( P<0.01), and their AUC values were 0.947 (95 %CI 0.926-0.968), 0.930 (95 %CI 0.895-0.966), 0.844 (95 %CI 0.722-0.967) and 0.865 (95 %CI 0.781-0.950), respectively. For IgG, the cut-off value was 14.24 g/L, and the diagnostic sensitivity and specificity were 88.5% and 90.1%, respectively. The cut-off value of IgA was 8.88 g/L, and the sensitivity and specificity of IgA were 87.9% and 81.4%, respectively. For IgM, the cut-off value was 26.93 g/L, and the sensitivity was 64.4% and the specificity was 90.9%. For FLC, the cut-off value, diagnostic sensitivity, and specificity was 7.08 g/L, 85.9%, and 77.8%, respectively. Conclusions:Capillary electrophoresis immunotyping technique can be used to diagnose malignant MG such as multiple myeloma (MM) and non-Hodgkin′s lymphoma (NHL), as well as to screen and track diseases like MGUS and MGRS. Serum MP level can be used to distinguish malignant MG from benign MG effectively.

Research progress and enlightenment of multi-site practice of specialized nurses in foreign countries / 中国实用护理杂志

This study introduced the development, qualification requirements, training contents and methods, practice authority and field, practice management and safety of specialist nurses' multi-sitepractice, elaborated the development status of multi-site practice of nurses in foreign countries, summarized international experience, combined with the national conditions, explored the development mode of multi-point practice of specialist nurses in China, with a view to providing domestic specialized nurses with multi-site practice. It also provides suggestions for managers to formulate relevant policies and develop localized multi-site practice.

Analysis of Key Points of Radiation Sources in Proton and Carbon Ion Radiotherapy Facilities in Shanghai / 中国医疗器械杂志

Compared with conventional high energy X-ray radiotherapy, proton/carbon ion has obvious advantages because of its Bragg peak dose distribution. However, proton heavy ion facility has complex structure, high energy and various radiation types due to various nuclear reaction processes, the radiation protection safety brought by the operation of facilities has gradually attracted attention. Taking the proton/carbon ion radiotherapy facility of Shanghai Proton and Heavy Ion Center as an example, the author mainly analyzed the operation principle of proton/carbon ion treatment facility, the basis of radiation protection, analysis of key radiation source points, etc., so as to provide theoretical support and experience for radiation protection.

Clinical study of the oxygen drive aerosol inhalation with budesonide and ambroxol in the prevention of adult post-thoracotomy pneumonia / 北京大学学报(医学版)

OBJECTIVE@#To study the clinical effect of the oxygen drive aerosol in halation with budesonide and ambroxol in the prevention of adult post-thoracotomy pneumonia.@*METHODS@#This was a randomized, open and parallel controlled trial. We chose 80 cases of patients in the department of thoracic surgery in the First Affiliated Hospital of Xi'an Jiaotong University which fitted our criteria as the research object. The selected patients were randomly divided into the active group and the control group, and the active group underwent oxygen drive aerosol inhalation (2 mg budesonide combined 60 mg ambroxol) for 3 days before operation, and the control group without preoperative aerosol inhalation, and their postoperative therapy was the same.@*RESULTS@#The baseline data showed that the differences in sex, age, disease and smoking were not statistically significant between the two groups, P>0.05. The results of blood gas analysis before 12 hours of operation suggested that, the PaO₂and PaCO₂values of the active group were (88.40±9.40) mmHg and (38.30±6.10) mmHg; The PaO₂and PaCO₂ values of the control group were (85.09±7.18) mmHg and (41.21±3.15) mmHg. And the two groups' P values were 0.029 and 0.011, with statistical differences. There were 3 patients who developed postoperative pneumonia out of 40 patients in the active group, the incidence was 7.50%, but the incidence of control group was 25.00%. The P value was 0.034, with statistical differences. We also analyzed the influence of different diseases and surgical methods on postoperative pneumonia, and the results showed that in the active group and the control group, the incidence of postoperative pneumonia in the patients with esophageal cancer was lower than that in lung cancer patients, and there was a statistically significant difference (P<0.05). In the active group, the numbers of pulmonary deed resection, lobectomy and pulmonary sleeve resection were 2, 21 and 1 cases respectively, and the corresponding numbers in the control group were 2, 21 and 2. Among the two groups, the incidence of postoperative pneumonia in the patients with different surgical methods of lung cancer was statistically significant (P<0.05).@*CONCLUSION@#If we implement respiratory preparation with budesonide plus ambroxol inhalation for 3 days before operation, we can greatly reduce the incidence of postoperative pneumonia?

Two new flavanone glucosides identified in Glycyrrhiza uralensis / 药学学报

Two flavanone glucosides were isolated from the 80% ethanol extract of Glycyrrhiza uralensis using various chromatographic techniques, including macroporous adsorbent resin, RP-C18, Sephadex LH-20, MCI and preparative HPLC. On the basis of chemical properties and spectra data, these compounds were identified as (2S)-liquiritigenin-4'-O-β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranoside (1), (2R)-liquiritigenin-4'-O-β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranoside (2), respectively. Compounds 1 and 2 are new compounds, and their aglycones are enantiomers.

A new neolignan from the fruits of Arctium lappa L / 药学学报

In our study of the chemical constituents of the dried mature fruits of Arctium lappa L., ten compounds were isolated by various chromatography methods and preparative HPLC. Their structures were elucidated as (7R,8R)-4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-4'-oxyneolign-7'-ene-9'-O-β-D-glucopyranoside (1), (7R,8R)-4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-O-4'-neolignan-9'-O-β-D-glucopyranoside (2), (7R,8R)- 4,7,9,9'-tertahydroxy-3,3'-dimethoxy-8-4'-oxyneolignan (3), (7S,8R)-dihydrodehydrodiconiferylalcohol-4-O-β- D-glucopyranoside (4), (7S,8R,7'R,8'R)-pinoresinol-4,4'-di-O-β-D-glucopyranoside (5), (8S,7'S,8'R)-4,4',9'- trihydroxy-3,3'-dimethoxy-7',9-epoxylignan-7-oxo-4'-O-β-D-glucopyranoside (6), 2-methoxy-4-hydroxyphenol- 1-O-β-D-xylopyranosyl-(1→6)-O-β-D-glucopyranoside (7), 3-methoxy-4-hydroxyphenol-1-O-β-D-xylopyranosyl- (1→6)-O-β-D-glucopyranoside (8), 4-hydroxy-3-methoxybenzylalcohol-4-O-β-D-xylopyranosyl-(1→6)-O-β-D- glucopyranoside (9) and 2-phenethyl β-primeveroside (10) by their spectroscopic data (IR, UV, CD, MS, HR-ESI-MS, and 1D and 2D NMR) and comparison to literature data. Compound 1 is a new 8-O-4'-neolignan. Compounds 2-10 were isolated from the dried mature fruits of Arctium lappa L. for the first time.

Nine compounds from the root bark ofand their anti-inflammatory activitieslammatory activitiesretain-->

Two new compounds, named lyciumlignan D () and lyciumphenyl propanoid A (), along with seven known compounds, were isolated from the root bark of. Their structures were elucidated using spectroscopic data (UV, IR, HR-ESI-MS, 1D and 2D NMR, CD), as well as by comparison with those of the literature. Compounds-were isolated from this genus for the first time. In theassay, compounds,, andexhibited stronger anti-inflammatory effects than the positive control curcumin at a concentration of 10 μmol/L.

Blocking Posttranslational Core Fucosylation Ameliorates Rat Peritoneal Mesothelial Cell Epithelial-Mesenchymal Transition / 中华医学杂志(英文版)

<p><b>Background:</b>Core fucosylation (CF), catalyzed by α-1,6 fucosyltransferase (Fut8) in mammals, plays an important role in pathological processes through posttranslational modification of key signaling receptor proteins, including transforming growth factor (TGF)-β receptors and platelet-derived growth factor (PDGF) receptors. However, its effect on peritoneal fibrosis is unknown. Here, we investigated its influence on epithelial-mesenchymal transition (EMT) of rat peritoneal mesothelial cells (PMCs) in vitro induced by a high-glucose (HG) culture solution.</p><p><b>Methods:</b>Rat PMCs were first cultured in a HG (2.5%) culture solution to observe the CF expression level (fluorescein isothiocyanate-lens culinaris agglutinin), we next established a knockdown model of rat PMCs in vitro with Fut8 small interfering RNA (siRNA) to observe whether inhibiting CF decreases the messenger RNA (mRNA) expression and protein expression of Fut8 and reverses EMT status. Rat PMCs were randomly divided into control group, mock group (transfected with scrambled siRNA), Fut8 siRNA group, HG group, HG + mock group, and HG + Fut8 siRNA group. Finally, we examined the activation of TGF-β/Smad2/3 signaling and PDGF/extracellular signal-regulated kinase (ERK) signaling to observe the influence of CF on them.</p><p><b>Results:</b>CF, Fut8 mRNA, and protein expression were all significantly upregulated in HG- induced EMT model than those in the control rat PMCs (P < 0.05). Fut8 siRNA successfully blocked CF of TGF-β receptors and PDGF receptors and attenuated the EMT status (E-cadherin and α-SMA and phenotypic changes) in HG-induced rat PMCs. In TGF-β/Smad2/3 signaling, Fut8 siRNA did not suppress the protein expression of TGF-β receptors and Smad2/3; however, it significantly suppressed the phosphorylation of Smad2/3 (relative expression folds of HG + Fut8 group vs. HG group: 7.6 ± 0.4 vs. 15.1 ± 0.6, respectively, P < 0.05). In PDGF/ERK signaling, Fut8 siRNA did not suppress the protein expression of PDGF receptors and ERK, but it significantly suppressed the phosphorylation of ERK (relative expression folds of HG + Fut8 group vs. HG group: 8.7 ± 0.9 vs. 15.6 ± 1.2, respectively, P < 0.05). Blocking CF inactivated the activities of TGF-β and PDGF signaling pathways, and subsequently blocked EMT.</p><p><b>Conclusions:</b>These results demonstrate that CF contributes to rat PMC EMT, and that blocking it attenuates EMT. CF regulation is a potential therapeutic target of peritoneal fibrosis.</p>

Identification of Ilicis Rotundae Cortex and Its Adulterant Based on HPLC Fingerprint / 中国中医药信息杂志

Objective To establish HPLC fingerprints for the identification of Ilicis Rotundae Cortex (Jiubiying), dried bark of Ilex rotunda Thunb., and its adulterant, dried bark of Ilex godajam (Colebr.) Wall.. Methods Some samples named Jiubiying were collected from some medicine markets and drugstores. The HPLC fingerprints were obtained to detect Jiubiying and Ilex godajam. The software Similarity Evaluation System of Chromatographic Fingerprints of Traditional Chinese Medicine (2004A edition) was used to evaluate fingerprints. Results The fingerprints of Jiubiying and Ilex godajam were established. Methodological study met the technical requirements of fingerprints. There were 31 and 28 common peaks in Jiubiying and Ilex godajam, respectively. Jiubiying and Ilex godajam could be classified into two clusters by principal component analysis and hierarchical clustering analysis. Conclusion Jiubiying and Ilex godajam can be identified by HPLC fingerprints. This method can provide an effective method for quality evaluation of Jiubiying.

Effects of rhTIMP-3 combined with DDP on growth inhibition and apoptosis of lung cancer cell A549 / 西安交通大学学报(医学版)

Objective To study the effects of restructuring tissue inhibitor of matrix metatloproteinase-3 (rhTIMP-3) in combination with cisplatin (DDP) on the growth and apoptosis of A549 lung cancer cell line.Methods We made individual and combined use of different concentrations of rhTIMP-3 and DDP on A549 cells.Methyl thiazoyl terazolium (MTT) colorimetry was used to analyze cell growth inhibition,and flow cytometry technique was used to determine the cell cycle distribution and apoptosis rate.Results rhTIMP-3 and DDP both could inhibit the proliferation of A549 cells.rhTIMP-3 exerted its effect in the time-and concentration-dependent manners while DDP did so in the concentration-dependent manner;both induced the apoptosis of A549 cells.rhTIMP-3 could make the cells stay in S and G2/M phases,and DDP made the cells stay in S phase.The combination of them obviously strengthened the inhibition of A549 cell growth,and had obvious synergy in inducing apoptosis.Conclusion Both rhTIMP-3 and DDP can inhibit the proliferation of A549 cells and induce their apoptosis.The combined use of them not only can increase the inhibition of cell growth but also has synergy in inducing cell apoptosis.

Expression and function of HSP110 family in mouse testis after vasectomy / 亚洲男科学杂志(英文版)

HSP110 functions to protect cells, tissues, and organs from noxious conditions. Vasectomy induces apoptosis in the testis; however, little is known about the reason leading to this outcome. The aim of the present study was to evaluate the expression and function of HSP110 in mouse testis after vasectomy. Following bilateral vasectomy, we used fluorescent Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) to detect apoptosis, Western blotting and immunohistochemistry to examine HSP110 expression and localization. Serum antisperm antibody (AsAb) and testosterone were measured by Enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay, respectively. Expression of endoplasmic reticulum stress (ERS) sensors and downstream signaling components was measured by Reverse Transcription-Polymerase Chain Reaction (RT-PCR), and the phosphorylation of eIF2 and JNK was detected by Western blotting. Vasectomy induced morphologic changes, increased apoptosis in the testis, increased serum AsAb, and decreased testosterone levels. After vasectomy, ORP150 mRNA level was increased first and then decreased, Bcl-2 was decreased, and the expression of HSPA4l, GRP78, GADD153, PERK, ATF6, IRE-1, XBP-1s, Bax, Bak, and caspases and the phosphorylation of eIF2 and JNK were increased. We present that an ER stress-mediated pathway is activated and involved in apoptosis in the testis after vasectomy. HSPA4l and ORP150 may play important roles in maintaining the normal structure and function of testis.

Antimicrobial and anti-tumor activities of endophytes from Lycium barbarum of Ningxia / 中国中药杂志

The antimicrobial activity and cytotoxicity in vitro of the fermentation broth of 10 endophytic strains isolated from Lycium barbarum were determined to screen high activity endophytic strains. Sequences analysis of ITS and 16S rDNA was used for molecular identification of the strains. The results showed that 5 endophytic fungi had no inhibitory activity against the tested pathogens. Endophytic actinomycete strain AL6 had a certain inhibitory effect on 3 kinds of pathogenic fungi, and strain AL5 only had strong inhibitory activity against Staphylococcus aureus. However, the anti-tumor activity of endophytic fungi was significantly higher than that of actinomycetes. Four endophytic fungi strains exhibited the growth inhibition rate of above 50% against at least one of the tested tumor cells when the concentration of fermentation broth was 0.2 g•L⁻¹. Sequences analysis showed that 5 endophytic fungi strains belonged to genus Aspergillus, Penicillium and Emericella, and the 5 endophytic actinomycetes strains belonged to genus Aspergillus, Penicillium and Emericella. Aspergillus strain FL1 had stronger inhibitory activity against A549 and HeLa cells, and the IC₅₀ values were 0.022，0.028 g•L⁻¹, respectively, which was worthy of further study.

Analysis of the preventive and therapeutic effects of Taohe Chengqi decoction on a rat model of hepatic encephalopathy / 中国比较医学杂志

Objective To analyze the preventive and therapeutic effects of a traditional Chinese medicine Taohe Chengqi decoction on a rat models of hepatic encephalopathy ( HE) induced by thioacetamide ( TAA) .Methods The rat model of HE was established by intraperitoneal injection of TAA,and the effects of Taohe Chengqi decoction were observed by neurobehavioral changes,neurological test,blood ammonia,serum biochemical indexes,and liver and brain pathological examination.Results The rat model of hepatic encephalopathy was successfully established.Low, medium and high dose Taohe Chengqi decoction markedly improved neuro-reflexes and liver and brain pathological damages, and significantly decreased the HE staging and serum biochemical indexes, and the results of high dose group was the best, similar to that of positive drug-treatment group.Conclusions Taohe Chengqi decoction exhibits promising preventive and therapeutic effects on the rat model of TAA-induced hepatic encephalopathy, and these results provide substantial experimetal evidence for its clinical application.

Protective effect of HO-1 transfection against ethanol-induced osteoblast damage / 华中科技大学学报（医学）（英德文版）

Heme oxygenase-1 (HO-1) plays important roles in anti-oxidant, anti-inflammatory and immunoregulative activities. The aim of this study was to observe if HO-1 transfection could inhibit the damage of osteoblasts induced by ethanol. HO-1 was transfected into osteoblasts via constructed plasmid. After exposure to ethanol for 24 h, cytoactivity and apoptosis of osteoblasts were measured by MTT assay and flow cytometry, respectively. Furthermore, the oxidative stress and inflammatory factors in osteoblasts were measured. Compared to positive control group, the cytoactivity of transfected osteoblasts was significantly increased, and the apoptosis rate was significantly decreased (P<0.05). At the same time, the levels of reactive oxygen species (ROS), methane dicarboxylic aldehyde (MDA), tumor necrosis factor-α (TNF-α) and interleukin-1 (IL-1) were significantly decreased (P<0.05), and superoxide dismutase (SOD) level was increased (P<0.05) in the transfected osteoblasts as compared with positive controls. These results suggest that HO-1 plays a protective role in osteoblasts, and HO-1 transfection can effectively inhibit bone damage induced by ethanol.

Screening and identification of antioxidant endophytes from Lycium barbarum of Ningxia / 中国中药杂志

In this paper, 29 endophytes were isolated from different organs and tissues of Lycium barbarum of Ningxia by tablet coating method, 18 of them was fungi, and 11 of them was actinomycetes. The endophytes quantity in the different tissues were leaves > flowers > roots >fruits; The hydroxyl radical scavenging activities of 11 endophytes were investigated by Fenton reaction, and total antioxidant capacities of them were examined by a. total antioxidant capacity test kit; culture features and strain-specific sequence analysis were employed to explore the diversity of the 11 endophytes. The result showed that 5 fungi and 6 actinomycetes that having antioxidant activity could be phylogenetically classified into 3 genera, 3 genera and 3 families, respectively. The total antioxidant capacity and hydroxyl radical scavenging activity of the 11 endophytes showed distinct difference. The antioxidant activity of Aspergillus were stronger, among which total antioxidant capacity of fL1 was (188.5 ± 0.549) U · mL⁻¹ and the IC₅₀ was 0.3 mg · L⁻¹; the IC₅₀ of strain fL1 was 0.42 mg · L⁻¹ and the total antioxidant capacity of fL9 was (113.63 ± 1.021) U · mL⁻¹, all of them were stronger than the positive control Vit C. The experimental results indicated that endophytic fungi of L. barbarum of Ningxia have a great developing and application prospect for the development of antioxidant agent.

Protective effect of HO-1 transfection against ethanol-induced osteoblast damage / 华中科技大学学报（医学）（英德文版）

Heme oxygenase-1 (HO-1) plays important roles in anti-oxidant, anti-inflammatory and immunoregulative activities. The aim of this study was to observe if HO-1 transfection could inhibit the damage of osteoblasts induced by ethanol. HO-1 was transfected into osteoblasts via constructed plasmid. After exposure to ethanol for 24 h, cytoactivity and apoptosis of osteoblasts were measured by MTT assay and flow cytometry, respectively. Furthermore, the oxidative stress and inflammatory factors in osteoblasts were measured. Compared to positive control group, the cytoactivity of transfected osteoblasts was significantly increased, and the apoptosis rate was significantly decreased (P<0.05). At the same time, the levels of reactive oxygen species (ROS), methane dicarboxylic aldehyde (MDA), tumor necrosis factor-α (TNF-α) and interleukin-1 (IL-1) were significantly decreased (P<0.05), and superoxide dismutase (SOD) level was increased (P<0.05) in the transfected osteoblasts as compared with positive controls. These results suggest that HO-1 plays a protective role in osteoblasts, and HO-1 transfection can effectively inhibit bone damage induced by ethanol.

Application of traditional Chinese medicine in the prevention and treatment of new sudden infectious disease / 药学学报

There has been thousands of years' history that traditional Chinese medicines were used in the prevention and treatment of infectious disease. In recent years, traditional Chinese medicine plays a unique role in the control of variety of new infectious diseases. This article provides a summary on our knowledge of the traditional Chinese medicine theory in the explanation of infectious disease, application of Chinese medicines and the pharmacological mechanism in the successful management on the Ebola virus disease.