检索结果-南通市图书馆

Chemical composition, mechanism of antibacterial action and antioxidant activity of leaf essential oil of Forsythia koreana deciduous shrub

引用

Asian Pacific Journal of Tropical Medicine 2015年第9期8卷 682-688页

作者： xiao-nan yang Imran Khan Sun Chul Kang Department of Biotechnology College of Engineering Daegu University Kyungsan

Objective: To identify the chemical constituents of leaf essential oil of Forsythia koreana(F. koreana) and evaluate its ef ects on bacterial strains. Methods: The essential oil of leaf of F. koreana was extracted by using hydrodistillation process and the volatile components investigated with the help of gas chromatography coupled with mass spectrometry. The antibacterial study was carried out with the help of agar disc dif usion method, MIC, MBC and viable count. The mode of action was determined with help of potassium ion l ux, cellular material release and scanning electron microscopy. The antioxidant activity was determined with the help of 2, 3-diphenyl-2-picrylhydrazyl method, nitric oxide scavenging activity and superoxide anion radical scavenging assay. Results: Total ten compounds were identii ed as trans-phytol(42.73%), cis-3-hexenol(12.95%), 毬-linalool(10.68%), trans-2-hexenal(8.86%), trans-2-hexenol(8.86%), myrcenol(3.86%), 4-vinylphenyl acetate(3.86%),(4Z)-4,6-heptadien-1-ol(3.18%), lemonol(2.73%) and benzeneacetaldehyde(2.27%) by gas chromatography coupled with mass spectrometry. The antibacterial study was demonstrated that leaf essential oil of F. koreana act against foodborne and other pathogenic bacteria. The mode of action revealed that this essential oil acted on the cytoplasmic membrane, resulting in loss of integrity and increased permeability. In addition, leaf essential oil of F. koreana was shown to be rich in linalool, which contributes to improved antioxidant activity. Conclusions: These results show that leaf essential oil of F. koreana has great potential as a natural food preservative, antibacterial and antioxidant agent.

关键词： Antibacterial activity Antioxidant activity Cell material released Essential oil GC-MS Potassium ion flux

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Skeletal muscle-derived cells repair peripheral nerve defects in mice

引用

Neural Regeneration Research 2020年第1期15卷 152-161页

作者： Zi-Xiang Chen Hai-Bin Lu xiao-Lei Jin Wei-Feng Feng xiao-nan yang Zuo-Liang Qi The 16^th Department Plastic Surgery HospitalChinese Academy of Medical Sciences(CAMS)and Peking Union Medical College(PUMC)BeijingChina Yu Tian Cheng Plastic Surgery Clinic ShanghaiChina

Skeletal muscle-derived cells have strong secretory function,while skeletal muscle-derived stem cells,which are included in muscle-derived cells,can differentiate into Schwann cell-like cells and other cell ***,the effect of muscle-derived cells on peripheral nerve defects has not been *** this study,5-mm-long nerve defects were created in the right sciatic nerves of mice to construct a peripheral nerve defect *** female C57BL/6 mice were randomly divided into four *** the muscle-derived cell group,muscle-derived cells were injected into the catheter after the cut nerve ends were bridged with a polyurethane *** external oblique muscle-fabricated nerve conduit and polyurethane groups,an external oblique muscle-fabricated nerve conduit or polyurethane catheter was used to bridge the cut nerve ends,*** the sham group,the sciatic nerves on the right side were separated but not *** 8 and 12 weeks post-surgery,distributions of axons and myelin sheaths were observed,and the nerve diameter was calculated using immunofluorescence *** number,diameter,and thickness of myelinated nerve fibers were detected by toluidine blue staining and transmission electron *** fiber area ratios were calculated by Masson’s trichrome staining of gastrocnemius muscle *** functional index was recorded using walking footprint analysis at 4,8,and 12 weeks after *** results showed that,at 8 and 12 weeks after surgery,myelin sheaths and axons of regenerating nerves were evenly distributed in the muscle-derived cell *** number,diameter,and myelin sheath thickness of myelinated nerve fibers,as well as gastrocnemius muscle wet weight and muscle area ratio,were significantly higher in the muscle-derived cell group compared with the polyurethane *** 4,8,and 12 weeks post-surgery,sciatic functional index was notably increased in the muscle-derived cell group compared with the polyurethane

关键词： muscle nerve conduit myokine nerve regeneration nerve repair peripheral nerve regeneration polyurethane catheter seed cells skeletal muscle skeletal muscle-derived cells tissue-engineered nerve

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Urinary trypsinogen-2 for diagnosing acute pancreatitis:a meta-analysis

引用

Hepatobiliary & Pancreatic Diseases International 2013年第4期12卷 355-362页

作者： Tao Jin Wei Huang Kun Jiang Jun-Jie Xiong Ping Xue Muhammad A Javed xiao-nan yang Qing Xia Sichuan Provincial Pancreatitis Center Department of Integrated Traditional Chinese and Western Medicine West China Hospital Sichuan University NIHR Liverpool Pancreas Biomedical Research Unit Royal Liverpool University Hospital University of LiverpoolLiverpool L69 3BX UK Department of Hepato-Biliary-Pancreatic Surgery West China Hospital Sichuan University

BACKGROUND: Currently, serum amylase and lipase are the most popular laboratory markers for early diagnosis of acute pancreatitis with reasonable sensitivity and specificity. Urinary trypsinogen-2 (UT-2) has been increasingly used but its clinical value for the diagnosis of acute pancreatitis and post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis has not yet been systematically assessed. DATA SOURCES: A comprehensive search was carried out using PubMed (MEDLINE), Embase, and Web of Science for clinical trials, which studied the usefulness of UT-2 as a diagnostic marker for acute pancreatitis. Sensitivity, specificity and the diagnostic odds ratios (DORs) with 95% confidence interval (CI) were calculated for each study and were compared with serum amylase and lipase. Summary receiver-operating curves were conducted and the area under the curve (AUC) was evaluated. RESULTS: A total of 18 studies were included. The pooled sensitivity and specificity of UT-2 for the diagnosis of acute pancreatitis were 80% and 92%, respectively (AUC=0.96, DOR=65.63, 95% CI: 31.65-139.09). The diagnostic value of UT-2 was comparable to serum amylase but was weaker than serum lipase. The pooled sensitivity and specificity for the diagnosis of post-ERCP pancreatitis were 86% and 94%, respectively (AUC=0.92, DOR=77.68, 95% CI: 24.99-241.48).CONCLUSIONS: UT-2 as a rapid test could be potentially used for the diagnosis of post-ERCP pancreatitis and to an extent, acute pancreatitis. Further studies are warranted to confirm these results.

关键词： urinary trypsinogen-2 acute pancreatitis endoscopic retrograde cholangiopancreatography diagnostic odds ratios meta-analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Validation of the moderate severity category of acute pancreatitis defined by determinant-based classification

引用

Hepatobiliary & Pancreatic Diseases International 2014年第3期13卷 323-327页

作者： Tao Jin Wei Huang xiao-nan yang Ping Xue Muhammad A Javed Kiran Altaf Robert Sutton Qing Xia Department of Integrated Traditional Chinese and Western Medicine Sichuan Provincial Pancreatitis Center West China Hospital Sichuan University NIHR Liverpool Pancreas Biomedical Research Unit Royal Liverpool and Broadgreen University Hospitals Trust and University of Liverpool

BACKGROUND: Recent international multidisciplinary consultation proposed the use of local (sterile or infected pancreatic necrosis) and/or systemic determinants (organ failure) in the stratification of acute pancreatitis. The present study was to validate the moderate severity category by international multidisciplinary consultation definitions. METHODS: Ninety-two consecutive patients with severe acute pancreatitis (according to the 1992 Atlanta classification) were classified into (i) moderate acute pancreatitis group with the presence of sterile (peri-) pancreatic necrosis and/or transient organ failure; and (ii) severe/critical acute pancreatitis group with the presence of sterile or infected pancreatic necrosis and/ or persistent organ failure. Demographic and clinical outcomes were compared between the two groups. RESULTS: Compared with the severe/critical group (n=59), the moderate group (n=33) had lower clinical and computerized tomographic scores (both P<0.05). They also had a lower incidence of pancreatic necrosis (45.5% vs 71.2%, P=0.015), infection (9.1% vs 37.3%, P=0.004), ICU admission (0% vs 27.1%, P=0.001), and shorter hospital stay (15 +/- 5 vs 27 +/- 12 days; P<0.001). A subgroup analysis showed that the moderate group also had significantly lower ICU admission rates, shorter hospital stay and lower rate of infection compared with the severe group (n=51). No patients died in the moderate group but 7 patients died in the severe/critical group (4 for severe group). CONCLUSIONS: Our data suggest that the definition of moderate acute pancreatitis, as suggested by the international multidisciplinary consultation as sterile (pen-) pancreatic necrosis and/or transient organ failure, is an accurate category of acute pancreatitis.

关键词： acute pancreatitis pancreatic necrosis organ failure determinant-based classification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Chaiqinchengqi decoction on serum amyloid A in severe acute pancreatitis patients

引用

Asian Pacific Journal of Tropical Medicine 2012年第11期5卷 901-905页

作者： Wei Wu Jia Guo xiao-nan yang Zi-Qi Lin zhen-Zhen Huang Qing Xia Ping Xue Pancreatic Diseases Research Group Department of Integrated Traditional and Western MedicineWest China HospitalSichuan University Department of Surgery First Hospital of Chengdu

Objective:To investigate the effect of Chaiqinchengqi decoction(CQCQD) on serum amyloid A (SAA) in severe acute pancreatitis(SAP) ***:Thirty-five participants enrolled and were randomly assigned into either a treatment condition(n=17,treated with CQCQD) or a control condition(n=18,treated with placebo) 24 hours following the onset of the disease. No statistical difference was observed in either group at *** admission,the Acute Physiology and Chronic Health Evaluation scoreⅡ(APACHEⅡ),SAA,serum C-reactive protein (CRP) and interleukin-6(IL-6) were measured,as well as on the first,3rd and 7lh day and were compared between the two *** complications,infection,operation rate,mortality and hospital stay were also ***:The duration of acute respiratory distress syndrome, acute hepatitis,acute renal failure,gastrointestinal failure and blood coagulation dysfunction were shorter in the treatment group than in those in the control group(P<0.05).The secondary infection rates and the hospital fees in the treatment group were lower than those in the control group(P<0.05) as well as length of hospital stay(P<0.01).After 3 days of hospitalization,the APACHEⅡ,score SAA levels,serum CRP and IL-6 in the treatment group was lower than those in the control group(P<0.05).SAA was positively correlated with serum CRP(R = 0.346,P = 0.042),Ranson score(R = 0.442,P = 0.008) and serum IL-6(R=0.359,P =0.034).The area under the receiver operating characteristic curve of admission SAA predict pancreatic necrosis(PN) was 0.815(95%CI:0.625-0.954;P =0.006).The best cut-off value of admission SAA was 7.85 mg/L with the sensitivity 84.6%and specificity 68.2%.Conclusions:The CQCQD can reduce the duration of organ damage through lowering the SAA in SAP patients and the SAA can early predict the PN and severity of SAP patients.

关键词： Severe acute pancreatitis Chaiqinchengqi decoction Serum amyloid A

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ocular decompression retinopathy after phacoemulsification in a patient with primary acute angleclosure glaucoma undergoing chemotherapy

引用

International Journal of Ophthalmology(English edition) 2024年第2期17卷 397-400页

作者： Yi-Lin Chen xiao-nan yang Ying-Li Liu Wen-Tao Li Li-Jun Huo Department of Ophthalmology the First Affiliated HospitalSchool of MedicineSun Yat-sen UniversityGuangzhou 510080Guangdong ProvinceChina

Dear Editor,Ocular decompression retinopathy(ODR),which manifests as diffuse retinal hemorrhage occurring abruptly in multiple locations,including the subretinal,intraretinal,and preretinal spaces,is a rare complication after glaucoma surgery and is caused by sudden,iatrogenic lowering of intraocular pressure(IOP).Implicated procedures include glaucoma drainage implantation,trabeculectomy,iridotomy,and even cataract surgery[1].One report described a case of ocular decompression management following uncomplicated cataract surgery with no posterior capsular rupture or other intraoperative complications[2].Here,we report a rare case of ODR triggered by phacoemulsification and the use of systemic chemotherapeutic drugs in a patient with primary acute angleclosure glaucoma(PACG).The case not only improves our understanding of potential side effects of chemotherapeutic drugs on ophthalmic surgery but may also serve as a reference for clinicians in the management of patients with glaucoma with similar medical histories.

关键词： glaucoma decompression drugs

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Surgical outcome and patient satisfaction after Z-epicanthoplasty and blepharoplasty

引用

International Journal of Ophthalmology(English edition) 2018年第12期11卷 1922-1925页

作者： Jing-Yi Zhao xiao-Shuang Guo Guo-Dong Song Xian-Lei Zong xiao-nan yang Le Du Chen-Zhi Lai Zuo-Liang Qi xiao-Lei Jin Department No.16 Plastic Surgery Hospital Chinese Academy of Medical Sciences & Peking Union Medical College

AIM: To evaluate surgical outcomes of modified Z-epicanthoplasty with blepharoplasty that we previously reported from the patient’s perspective using patient-reported outcome measures(PROMs) and patient satisfaction ***: A total of patients(n=180) who underwent the surgery between January 2013 and June 2016 were randomly selected. Standardized patient satisfaction forms(total score, 40) and validated PROMs questionnaires(total score, 12) were sent to patients for completion. PROMs assesses the severity of scarring, pain and asymmetry, as well as functional and appearance ***: All patients were female, ranging from 18 to 35 years old(mean=24). The response rate was 73.3%(n=132). The majority of patients reported good or excellent outcomes based on PROM analysis. Patients reported minimum or non-visible scarring at both the double eyelid surgical scar(85.6%) and the inner canthus(80.3%). Issues concerning function and appearance were minimal as 80.3% reported satisfaction with both domains. Notably, the majority of patients reported either a high or very high satisfaction rate to yield a mean score of 104 out of 120(P<0.05).CONCLUSION: Integration of our modified Z-epicanthoplasty with blepharoplasty produces good outcomes based on PROM results, which shows a positive linear relationship with patient satisfaction scores.

关键词： surgical outcome patient satisfaction patient-reported outcome measures Z-epicanthoplasty blepharoplasty

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Present and future of prophylactic antibiotics for severe acute pancreatitis

引用

World Journal of Gastroenterology 2012年第3期18卷 279-284页

作者： Kun Jiang Wei Huang xiao-nan yang Qing xia Department of Integrated Traditional Chinese and Western Medicine West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Liverpool NIHR Pancreas Biomedical Research Unit Royal Liverpool University HospitalUniversity of LiverpoolLiverpool L693GAUnited Kingdom

AIM: To investigate the role of prophylactic antibiotics in the reduction of mortality of severe acute pancreatitis (SAP) patients, which is highly questioned by more and more randomized controlled trials (RCTs) and metaanalyses. METHODS: An updated meta-analysis was performed. RCTs comparing prophylactic antibiotics for SAP with control or placebo were included for meta-analysis. The mortality outcomes were pooled for estimation, and re-pooled estimation was performed by the sensitivity analysis of an ideal large-scale RCT. RESULTS: Currently available 11 RCTs were included. Subgroup analysis showed that there was significant reduction of mortality rate in the period before 2000, while no significant reduction in the period from 2000 [Risk Ratio, (RR ) = 1.01, P = 0.98]. Funnel plot indi-cated that there might be apparent publication bias in the period before 2000. Sensitivity analysis showed that the RR of mortality rate ranged from 0.77 to 1.00 with a relatively narrow confidence interval (P < 0.05). However, the number needed to treat having a minor lower limit of the range (7-5096 patients) implied that certain SAP patients could still potentially prevent death by antibiotic prophylaxis. CONCLUSION: Current evidences do not support prophylactic antibiotics as a routine treatment for SAP, but the potentially benefited sub-population requires further investigations.

关键词： Severe acute pancreatitis Prophylactic antibiotics Mortality Meta-analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Impact of alanyl-glutamine dipeptide on severe acute pancreatitis in early stage

引用

World Journal of Gastroenterology 2008年第3期14卷 474-478页

作者： Ping Xue Li-Hui Deng Qing xia Zhao-Da Zhang Wei-Ming Hu xiao-nan yang Bing Song Zong-Wen Huang Department of Integrated Traditional Chinese and Western Medicine West China ~Iospital Sichuan UniversityChengdu 610041 Sichuan Province China Department of General Surgery West China Hospital Siciauan University Chengdu 610~)4iSichuan Province China Department of Radiology West China HospitalSichuan University Chengdu 610041 Sichuan Province China

AIM:To evaluate the therapeutic effect of alanyl- glutamine dipeptide (AGD) in the treatment of severe acute pancreatitis (SAP) in early and advanced stage. METHODS: Eighty patients with SAP were randomized and received 100 mL/d of 20% AGD intravenously for 10 d starting either on the day of (early treatment group) or 5 d after (late treatment group) admission. Groups had similar demographics, underlying diseases, Ranson score, Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE Ⅱ) score, and Balthazar’s computed tomography (CT) score at the beginning of the study and underwent similar other medical and nutritional management. RESULTS: The duration of acute respiratory distress syndrome (2.7 ± 3.3 d vs 12.7 ± 21.0 d, P < 0.01), renal failure (1.3 ± 0.5 d vs 5.3 ± 7.3 d, P < 0.01), acute hepatitis (3.2 ± 2.3 d vs 7.0 ± 7.1 d, P < 0.01), shock (1.7 ± 0.4 d vs 4.8 ± 3.1 d, P < 0.05), encephalopathy (2.3 ± 1.9 d vs 9.5 ± 11.0 d, P < 0.01) and enteroparalysis (2.2 ± 1.4 d vs 3.5 ± 2.2 d, P < 0.01) and hospital stay (28.8 ± 9.4 d vs 45.2 ± 27.1 d, P < 0.01) were shorter in the early treatment group than in the late treatment group. The 15-d APACHE Ⅱ score was lower in the early treatment group than in the late treatment group (5.0 ± 2.4 vs 8.6 ± 3.6, P < 0.01). The infection rate (7.9% vs 26.3%, P < 0.05), operation rate (13.2% vs 34.2%, P < 0.05) and mortality (5.3% vs 21.1%, P < 0.05) in the early treatment group were lower than in the late treatment ***: Early treatment with AGD achieved a better clinical outcome in SAP patients.

关键词： Severe acute pancreatitis Alanyl-glutaminedipeptide Clinical study

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chemical composition, antioxidant and antibacterial activities of essential oil from Korean Citrus unshiu peel

引用

Journal of Agricultural Chemistry and Environment 2013年第3期2卷 42-49页

作者： xiao nan yang Sun Chul Kang Department of Biotechnology Daegu University Kyoungsan Republic of Korea

The chemical composition, antioxidant and antibacterial activities of essential oil from peel of Citrus unshiuwhich cultivated in South Korea were investigated. Eight compounds were identified as l-limonene (88.11%), γ-terpinene (4.66%), cyclohexane, 2,4-diisopropenyl-1-methyl-1-vinyl (1.82%), diethyl phthalate (1.02%), β-linalool (0.97%), β-myrcene (0.91%), α-farnesene (0.91%) and o-cymene (0.85%) by GC-MS. The SC50values of this essential oil on DPPH and superoxide anion were 0.21 and 0.22% (v/v), respectively. The results of zone of inhibition, MIC, MBC and cell viability demonstrated the essential oil of-Citrus unshiupeel displayed antibacterial effect against B. cereus KCTC 14042, B. subtilis ATCC 6633 and S. aureusATCC 6538. The release of cell material and potassium ion from the B. subtilis ATCC 6633 cells treated with essential oil was further investigated. SEM observation also revealed the damaging effect of the essential oil on the morphology of B. subtilisATCC 6633 cells at minimum inhibitory concentration.

关键词： Citrus unshiu Essential Oil GC-MS Antioxidant Antibacterial

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：