检索结果-南通市图书馆

Journal of Geriatric Cardiology 2024年第2期21卷 246-250页

作者： Shu-Yu MENG li-Qun WANG Hao-Dan DANG lin ZHANG sheng-li jiang Bo-Han liU Department of Ultrasound Diagnosis the First Medical CenterChinese PLA General HospitalBeijingChina Department of Nuclear Medicine the First Medical CenterChinese PLA General HospitalBeijingChina Department of Pathology the First Medical CenterChinese PLA General HospitalBeijingChina Department of Cardiovascular Surgery the First Medical CenterChinese PLA General HospitalBeijingChina

Paragangliomas,also known as pheochromocytomas(1–9 cases per million),arise in the paraganglia.[1]Pheochromocytomas occur in the adrenal glands,while paragangliomas occur elsewhere.[2]Paragangliomas originate from paraganglion cells,which are derived from the neural ectoderm of the nerves and migrate along both sides of the median axis from the base of the skull to the pelvis during embryonic development.

关键词： glioma cardiac nerves

Current prophylactic strategies against hepatitis B virus recurrence after liver transplantation

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第20期15卷 2489-2499页

作者： li jiang li-sheng jiang Nan-sheng Cheng Lu-Nan Yan Department of liver and Vascular Surgery Liver Transplantation Center West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China Department ofBiliary Surgery West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China

Prophylactic strategies against hepatitis B virus(HBV) recurrence after liver transplantation(LT) are essential for patients with HBV-related *** LT, lamivudine(LAM) was proposed to be down-graded from first-to second-line *** contrast, adefovir dipivoxil(ADV) has been approved not only as first-line therapy but also as rescue therapy for patients with LAM ***, combination of ADV and LAM may result in lower risk of ADV resistance than ADV *** new drugs such as entecavir, telbivudine and tenofovir, are probably candidates for the treatment of hepatitis-B-surface-antigen-positive patients awaiting *** LT, low-dose intramuscular hepatitis B immunoglobulin(HBIG), in combination with LAM, has been regarded as the most cost-effective regimen for the prevention of post-transplant HBV recurrence in recipients without pretransplant LAM resistance and rapidly accepted in many transplant *** the introduction of new antiviral drugs, new hepatitis B vaccine and its new adjuvants, post-transplant HBIG-free therapeutic regimens with new oral antiviral drug combinations or active HBV vaccination combined with adjuvants will be promising, particularly in those patients with low risk of HBV recurrence.

关键词： Hepatitis B virus liver transplantation Recurrence Prophylaxis Hepatitis B immunoglobulin

ANALYSIS OF INTER-LAMINAR STRESSES FOR COMPOSITE LAMINATED PLATE WITH INTERFACIAL DAMAGE

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

Acta Mechanica Solida Sinica 2008年第2期21卷 127-140页

作者： Yiming Fu sheng li Yejie jiang College of Mechanics and Aerospace Hunan University Changsha 410082 China

A constitutive model for composite laminated plates with the damage effect of the intra-layers and inter-laminar interface is presented. The model is based on the general six-degrees-of-freedom plate theory, the discontinuity of displacement on the interfaces are depicted by three shape functions, which are formulated according to solutions satisfying three equilibrium equations, By using the variation principle, the three-dimensional non-linear equilibrium differential equations of the laminated plates with two different damage models are derived. Then, considering a simply supported laminated plate with damage, an analytical solution is presented using finite difference method to obtain the inter-laminar stresses.

关键词： composite laminated plates geometric nonlinearity inter-laminar stress analysis interracial damage the finite difference method

Tribocorrosion Behavior of 304 Stainless Steel in 0.5 mol/L Sulfuric Acid

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2018年第10期31卷 1049-1058页

作者： Ming liu De-li Duan sheng-li jiang Ming-Yang li Shu li Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China

The tribocorrosion behavior of 304 stainless steel was studied through comparing the damage behavior of 304 stainless steel in dilute sulfuric acid to that in distilled water by a reciprocating tribotester. The re-passivation behavior, the surface and sectional morphological features, as well as the change of microhardness of samples were studied, and the tribocorrosion mechanism was also discussed. The experimental results reveal that the damage of stainless steel in dilute sulfuric acid was caused by the steel＇s mechanical removal and electrochemical dissolution. The wear mechanism of stainless steel is abrasive wear, which mainly consists of micro-cutting and peeling. The synergetic action between corrosion and wear is notable. The corrosive environment leads to the embrittlement of the surface layer, and the wear destroys the passivation film and causes galvanic corrosion.

关键词： Stainless steel Tribocorrosion Synergetic action Reciprocating wear test Re-passivation

Treatment of chronic proliferative cholangitis with c-myc shRNA

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第1期15卷 95-101页

作者： Fu-Yu li Nan-sheng Cheng Jing-Qiu Cheng Hui Mao li-sheng jiang Ning li sheng He Department of Hepatobiliary Surgery West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China Key Laboratory of Transplantation Engineering and Immunology West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China

AIM： To investigate the feasibility and effectiveness of c-myc shRNA in inhibiting the hyperplastic behavior and lithogenic potentiality of chronic proliferative cholangitis （CPC）, in order to prevent stone recurrence and biliary restenosis. METHODS： An animal model of CPC was established by giving intralumenally 0.5 mL of c-myc shRNA. Then, the effects of c-myc shRNA on hyperplastic behavior and lithogenic potentiality of CPC were evaluated by histological observation, immunohistochemistry, real- time PCR and Western blotting for c-myc, proliferating cell nuclear antigen （PCNA）, procollagen m, mucin 5AC, enzymatic histochemistry for 13-glucuronidase, and biochemistry for hydroxyproline in the diseased bile duct. RESULTS： Treatment with c-myc shRNA efficiently suppressed the hyperplasia of biliary epithelium, submucosal gland, and collagen fiber by inhibiting mRNA and protein expression of c-myc. More importantly, it decreased the lithogenic potentiality of CPC by inhibiting the expression of mucin 5AC and the secretion of endogenous 13-glucuronidase. Further investigation indicated that c-myc shRNA-3 had a better inhibitory effect on CPC. CONCLUSION： Treatment with c-myc shRNA-3 can control CPC and reduce the lithogenic potentiality of CPC.

关键词： Chronic proliferative cholangitis Hepatoli-thiasis Recurrence C-myc Prevention

昆明市老年人营养状况及营养不良风险评估分析

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

中国健康教育 2024年第7期40卷 631-638页

作者：刘国华熊光轶邱珺李胜江汤滴微张珊云南中医药大学基础医学院云南昆明650500 云南省公共营养师协会云南昆明650051

目的开展昆明市老年人营养不良风险评估及了解营养状况。方法2020年9—12月采用多阶段抽样方法抽取3737名65岁以上老年人,使用WS/T552-2017《老年人营养不良风险评估》开展调查,应用等级Logistic回归模型分析营养不良风险影响因素。结果... 详细信息

目的开展昆明市老年人营养不良风险评估及了解营养状况。方法2020年9—12月采用多阶段抽样方法抽取3737名65岁以上老年人,使用WS/T552-2017《老年人营养不良风险评估》开展调查,应用等级Logistic回归模型分析营养不良风险影响因素。结果1813人(48.51%)初筛总分3种(OR=1.833,95%CI:1.461~2.303)、长期服药种类>3种(OR=2.167,95%CI:1.747~2.762)、睡眠时间25g/d(OR=1.737,95%CI:1.499~2.012)和蔬菜水果<500 g/d(OR=1.800,95%CI:1.531~2.117)是老年人发生营养不良风险的主要危险因素。结论昆明市社区65岁以上老年人营养状况不佳,当地社区卫生服务中心(站)或公共营养机构应开展多种形式的营养教育与营养干预,改善老年人营养状况。

关键词：营养状况营养不良风险评估老年人昆明市

Mechanism of Immune Hyporesponsiveness Induced by Recipient-derived Immature Dendritic Cells in liver Transplantation Rat

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Sciences Journal 2011年第1期26卷 28-35页

作者： li li sheng-ning Zhang jiang-hua Ran Jing liu Zhu li Lai-bang li Department of Hepatobiliary Pancreatic Surgery First People＇s Hospital of Kunming Kunming Medical College Liver Transplantation Center of Organ Transplantation Institute of Yunnan Province Kunming 650011 China

Objective To investigate the mechanism of immune hyporesponsiveness induced by donor-antigen- unloaded recipient-derived immature dendritic cell （imDC） of liver grafts in rats. Methods Forty Sprague-Dawley rats （donor） and forty male Wistar rats （recipient） were randomly divided into 4 groups： control, cyclosporine A （CsA）, mature DC （mDC）, and imDC groups respectively, with 10 donor rats and 10 recipient rats in each group. Recipient rats in CsA group were treated with 10 mg-kg-~＇d-I CsA starting day 2 after the transplantation. Recipients in the mDC or imDC groups were given Wistar rat derived mDCs （1 × 10^6/rat） or imDCs （1 × 10^6/rat） via dorsal vein of the penis respectively 1 day before the transplantation. In each group, 5 recipients were kept for determination of survival time and the other 5 rats were executed at day 10 after transplantation. Blood samples were collected for the measurement of serum alanine aminotransferase （ALT）, total bilirubin （TBIL）, interleukin 2 （IL-2）, interferon gamma （IFN-γ）, IL-4, and IL-10 levels. liver tissue was harvested for HE staining and acute rejection evaluation. Expression levels of Fas-L/Fas in the grafts were detected by immunohistochemical staining; andWestern blot was used to detect the expression level of Scurfm. Results The survival time of CsA and imDC groups was significantly longer than that of control and mDC groups （all P〈0.05）. The levels of serum ALT and TBIL in the control group （2072.20±217.93 IU/L and 147.42±22.02pmol/L） and mDC group （2117.00±285.13 IU/L and 141.58±20.82 pmol/L） were significantly higher than those in the CsA group （59.68±13.48 IU/L and 15.40±2.13 pmol/L） or imDC group （50.80±9.63 IU/L and 14.44±3.49 pmol/L）（all P〈0.05）. In the CsA and imDC groups, the levels of IL-2 （22.52±3.75 pg/mL and 22.12±3.90 pg/mL） and IFN-γ （309.20±25.19 pg/mL and 321.00±21.64 pg/mL） were significantly lower, but the levels of IL-4 （297.60±25.07 pg/mL and 277.00±22.47 pg/mL） and IL-10 （1226.00±140.49 pg/mL an

关键词： rat liver transplantation rejection immature dendritic cell immunehyporesponsiveness

Unconventional Fluorescent and Multi-responsive Polysiloxane:Synthesis,Characterization and Biological Applications

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2024年第5期42卷 579-590,I0006页

作者： Xiao-Di li Shu-sheng li Xu-Bao jiang Xiao-li Zhu Xiang Zheng Kong College of Chemistry and Chemical Engineering University of JinanJinan250022China College of Chemical Engineering Tianjin UniversityTianjin300072China Foshan(Southern China)Institute for New Materials Foshan528200China

Owing to their high significance in fundamental study and diverse applications,stimuli-responsive and fluorescent polymers,particularly those with cluster-triggered emission(CTE)featured by non-conjugated chromophores,have drawn tremendous attention in recent *** this work,fluorescent and multi-responsive polysiloxane(FRPS)was synthesized by hydrolytic condensation polymerization of 3-aminopropyl methyl diethoxysilane(APMS)with 3-(N-isopropyl propionamide)iminopropyl methyl diethoxysilane(APMS-NIP),which was formed in situ through aza-Michael addition between APMS and N-isopropyl *** was not only highly sensitive to temperature,pH and CO_(2) in water,but also showed an enhanced and stimuli-adjustable fluorescence *** effects of monomer feeding,pH and CO_(2) on its lower critical solution temperature and fluorescent property were *** fluorescence emission was ascribed to CTE *** addition,FRPS was shown to be highly potential as physiological indicator for cell imaging,and for controlled release and trace detection of *** study provides therefore a type of stimuli-responsive and fluorescent material for potential applications in biomedical fields,and it is also of great significance for understanding of the fluorescence mechanism of polysiloxane-based stimuli-responsive polymers.

关键词： Polysiloxane Multi-responsiveness Cluster-triggered emission Cell imaging Controlled drug release

Experimental investigation on coal pore-fracture variation and fractal characteristics synergistically affected by solvents for improving clean gas extraction

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2024年第3期34卷 413-425页

作者： Feilin Han sheng Xue Chunshan Zheng Zhongwei Chen Guofu li Bingyou jiang Key Laboratory of Safe and Effective Coal Mining of Ministry of Education Anhui University of Science and TechnologyHuainan 232001China School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan 232001China School of Mechanical and Mining Engineering University of QueenslandQLD 4072Australia State Key Laboratory of Coal and Coalbed Methane Co-Mining Jincheng 048012China

Chemical solvents instead of pure water being as hydraulic fracturing fluid could effectively increase permeability and improve clean methane extraction ***,pore-fracture variation features of lean coal synergistically affected by solvents have not been fully *** testing,nuclear magnetic resonance analysis,liquid phase mass spectrometry was adopted to comprehensively analyze pore-fracture change characteristics of lean coal treated by combined solvent(NMP and CS_(2)).Meanwhile,quantitative characterization of above changing properties was conducted using geometric fractal *** model between permeability,fractal dimension and porosity were *** indicate that the end face fractures of coal are well developed after CS2and combined solvent treatments,of which,end face box-counting fractal dimensions range from 1.1227 to *** decreases in ultrasonic longitudinal wave velocity of coal affected by NMP,CS_(2)and combined solvent are 2.700%,20.521%,22.454%,*** treatments could lead to increasing amount of both mesopores and *** ratio of fractal dimension Dsis 0.259%–2.159%,while permeability increases ratio of NMR ranges from 0.1904 to ***,combined solvent could dissolve coal polar and non-polar small molecules and expand flow *** could provide reference for solvent selection and parameter optimization of permeability-enhancement technology.

关键词： Clean gas extraction Chemical solvent Experimental investigation Fractal characteristics Pore fracture

Giant submucosal lipoma located in the descending colon: A case report and review of the literature

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2007年第42期13卷 5664-5667页

作者： li jiang li-sheng jiang Fu-Yu li Hui Ye Ning li Nan-sheng Cheng Yong Zhou The First Department of General Surgery West China Hospital of Sichuan University Chengdu610041 Sichuan Province China

Colonic lipoma is an uncommon tumor of the gastrointestinal tract. Most cases are asymptomatic, with a small tumor size, and do not need any special treatment. However, we encountered one patient with a giant submucosal lipoma, with a maximum diameter of 8.5 cm, which exhibited symptoms such as intermittent lower abdominal pain, changes in bowel habits with passage of fresh blood and mucus per rectum, abdominal distension, anorexia and weight loss. Unfortunately, the possibility of colonic malignancy could not be precluded and leffc hemicolectomy was planned. The exact diagnosis of this special case was accomplished by intraoperative pathology. In the end, local resection was performed instead of left hemicolectomy. To the best of our knowledge, colonic lipoma exceeding 8 cm in diameter has not been previously reported. We, therefore, present this case and discuss age and sex factors, clinical and histopathological findings, diagnostic methods and treatment by reviewing the available literature, to serve as a reminder that colonic lipoma can also exist in patients with significant symptoms. In addition, intraoperative pathology should be investigated in those doubtful cases, so as to guide the exact diagnosis and treatment plan.

关键词： Colon lipoma Age, Diagnosis Therapy