1.Clinical analysis of 122 elderly cases of acute pancreatitis
Le XU ; Qing-Feng LUO ;
Chinese Journal of Geriatrics 1995;0(02):-
Objective To investigate the clinical features and prognosis of elderly patients with acute panereatitis.Methods One hundred and twelve elderly patients with acute pancreatitis were included in our study.The clinical features and prognosis were compared with those of the 120 non -aged patients with acute pancreatitis during the same period.Results Cholecystolithiasis was the most common etiology of acute pancreatitis in both groups[81 cases(66.3%) in aged group,70 cases (58.3%) in non-aged group].Abdominal pain was the most common symptom in both groups, followed by fever.Two elderly cases were diagnosed only by autopsy because of mild abdominal pain and rapidly attack of shock.There were 31 cases with severe pancreatitis in aged group and 14 in non -aged group (P
3.Study of family doctor's contracted service in the Healthy Zhenjiang campaign
Feng LIN ; Feng SU ; Qing XU ; Qian QIAN
Chinese Journal of Hospital Administration 2017;33(5):321-324
The paper introduced the practice of family doctor′s contracted service in Zhenjiang,Jiangsu province over the past six years.By exploring the tiered family doctor′s contracted services,namely 3+X teamwork responsible for household health,health insurance contracting with chronic disease patients,and personalized contracts,the city highlights the cornerstone role of primary care in the Healthy Zhenjiang 2015 Campaign.The campaign aims at providing fair,accessible,systematic and uninterrupted health services.Outcomes of the campaign have proved that the 3+X teamwork model helps building acquaintances relationship with residents by means of contracting,hence motivating both the sector and individuals in the health promotion and building a healthy Zhenjiang.
4.Construction of drug-loaded titanium implants via layer-by-layer electrostatic self-assembly.
Qian XU ; Qing FENG ; Jun OU ; Hong SUN
West China Journal of Stomatology 2014;32(6):537-541
OBJECTIVEThis study aims to construct a long-term, osteogenesis-targeting HU-308 drug delivery implant by the layer-by-layer electrostatic self-assembly (LBL) technique, and observe the features of its delayed release in vitro.
METHODSA heparin (Hep) and chitosan (Chi) multilayer was coated on pure titanium using the LBL technique, and the titanium implants were dipped into the solution to load HU-308. The amount of loaded drug and release rates were measured using a UV-Vis spectrophotometer. The relationships between the loading efficiency, release time, and multilayer films were evaluated. The morphology of all the multilayers was characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM).
RESULTSThe results showed that the Hep/Chi self-assembly multilayer was gradually fabricated on the titanium surface. HU-308 was successfully loaded on the titanium implants. The amount of loaded drug increased with the amount of multilayer films, except in the T20 group. In vitro drug release study showed that drug release was more difficult in the system with thicker films, and large amounts of multilayer films decreased the release speed. Both SEM and AFM measurements showed typical LBL deposition of Hep and Chi.
CONCLUSIONThe HU-308 drug delivery implant is successfully fabricated via LBL technology. It could provide sustained release of HU-308 over 30 d. This type of implant may provide a new possi- bility of promoting implant-bone osseointegration for osteoporotic patients.
Cannabinoids ; Chitosan ; Microscopy, Atomic Force ; Microscopy, Electron, Scanning ; Osseointegration ; Osteogenesis ; Prostheses and Implants ; Titanium
5.China' s process and challenges in achieving the United Nations Millennium Development Goal 5
Xinglin FENG ; Qing YANG ; Ling XU ; Yan WANG ; Yan GUO
Journal of Peking University(Health Sciences) 2011;43(3):391-396
Objective:China was categorized as one of the 68 countdown countries to achieve the United Nations Millennium Development Goals (MDG) 5. This paper aimed to analyze the situation of maternal survival, and coverage of proven cost effective interventions in China, where specific attention was paid to disparities. Methods: National maternal and child mortality surveillance data were used to estimate maternal mortality ratio (MMR). Coverage for proven interventions was analyzed based on National Health Services Survey, where experts' consultations were made for complementation. Results: There had been a significant reduction of MMR in China, however great disparities existed, with rural Ⅱ to Ⅳ areas experiencing 2 to 5 times higher maternal mortality risks than urban areas and accounting for over 70% maternal mortality burdens. Postpartum hemorrhage, pregnancy associated hypertension, embolism and sepsis were the leading causes, and over 75% of the maternal mortality was caused by preventable or curable causes. Maternal health services utilization decreased in accordance with region' s development level. Socioeconomic factors like financial difficulties were the main obstacles hindering access of care.Even those who made deliveries in hospitals faced different probabilities in receiving qualified care according to their socioeconomic standings. Conclusion: China is on track to achieve MDG 5, however great disparities exist. It is necessary to specifically target rural types Ⅱ to Ⅳ areas. Major causes of maternal mortality which can be prevented or averted through the provision of essential obstetrical care. Yet as compared with maternity health needs, insufficient coverage of maternal and child health (MCH) care services and poor service quality are the leading predisposing factors contributing to maternal mortality in China.
6.fMRI combined with diffusion tensor imaging for diseases of posterior visual pathways
Zengai CHEN ; Jianrong XU ; Qing LU ; Xiaoyuan FENG ; Daoying GENG
Journal of Third Military Medical University 2003;0(20):-
Objective To explore the relationship between structure and function in the diseases of posterior visual pathways as well as the anatomic mechanism of the abnormal visual responses.Methods Eleven cases of diseases of posterior visual pathways(3 gliomas,4 meningiomas,3 metastasis,1 stroke) involving either cortical or subcortical visual pathways were investigated by combining fMRI and DTI.fMRI was performed by using flashing checkerboard at 8 Hz.For imaging processing,fMRI analysis was performed with SPM99,and DTI and tractography with DTVⅡ.Fractional anisotropy(FA) of optic radiations and activated volume(VOXELs) of primary visual cortices(V1 and V2) were measured and analyzed at the affected side and the contralateral side.Relative FA(rFA) and relative activated volume(rVOXELs) were also calculated.3D tractography of optic radiations was performed successfully in 11 patients.Results In the patients with brain tumors,FA values in the affected side of optic radiations were significantly different with the contralateral side(P
7.Construction of prokaryotic expression vector of mouse CD25 extracellular domain
Lin XU ; Feng ZHANG ; Ya ZHOU ; Junmin LUO ; Ming QING
Journal of Third Military Medical University 1983;0(03):-
Objective To construct the prokaryotic expression vector of mouse CD25 extracellular domain and to express it in E coli.Methods Total RNA was isolated from splenocytes of Balb/c mice.The CD25 extracellular domain gene was amplified by RT-PCR and cloned into the PET-32a vector.A positive recombinant,PET-32a-CD25e,was identified by enzyme cleaving and sequencing before its expression in E.coli,and transferred into E.coli BL21(DE3) plysS for its expression.After purification with Ni+ resin and renaturation in vitro,a relative molecular mass(Mr) of the interesting protein was detected by SDS-PAGE and Wes-tern blotting.Effect of the purified interesting protein on the proliferation of splenocytes from T cell vaccine-immunized syngeneic mice was detected by MTT assay.Results The cloned CD25 extracellular domain gene was identified to be functional by sequencing and expression.The purified interesting protein could significantly induce the proliferation and IL-4 secretion of splenocytes from T cell vaccine-immunized mice in vitro.Conclusion Mouse CD25 extracellular domain gene can be successfully expressed in prokaryotic cells with biological activity,which lays a foundation for further relative studies.
8.Curative Efficacy of Decitabine Combine with CAG Gegimen in Treatment of Acute Myeloid Leukemia and Its Effects on IFN-γ, HBDH and LDH Levels
Na ZHANG ; Yongqian JIA ; Shenglan QING ; Feng XU ; Jie ZHOU
Progress in Modern Biomedicine 2017;17(25):4963-4966
Objective:To study the curative efficacy of decitabine combine with CAG regimen in the treatment of acute myeloid leukemia and its effects on the serum Interferon-γ (IFN-γ),alpha hydroxybutyrate dehydrogenase (HBDH) and lactate dehydrogenase (LDH) levels.Methods:70 cases of patients with acute myeloid leukemia who were treated from February 2013 to October 2016 in our hospital were selected as research objects.According to the random number table,the patients were divided into the observation group (n=35) and the control group (n=35).Both groups of patients were treated conventional treatment.The control group was treated with CAG scheme,intravenous injection of aclarubicin,20 mg each time,granulocyte colony stimulating factor,300 μg each time,subcutaneous intravenous cytarabine,10~15 mg/m2 each time,while the observation group was treated with intravenous drip of decitabine on the basis of control group,15 mg/m2 each time.Then the therapeutic effect,serum interferon-γ (IFN-γ),alpha hydroxybutyrate dehydrogenase (HBDH),lactate dehydrogenase (LDH) levels before and after treatment,incidence of adverse reactions were compared between two groups.Results:After treatment,the total effective of observation group was significantly higher than that of the control group [91.42%(32/35)vs68.57%(24/35)] (P <0.05);the serum IFN-γ,HBDH,LDH levels were significantly higher than those of the control group [(3.21± 1.01)pg/ml vs.(5.13 ± 1.90)pg/mL,(103.62± 26.39)U/L vs.(118.80± 28.60)U/L,(101.36± 27.32)U/L vs.(123.08 ± 30.59)U/L] (P <0.05);the incidence rate of adverse reactions was significantly lower than that of the control group [20.00%(7/35) vs.42.85%(15/35)(P <0.05)].Conclusion:Decitabine combined with CAG regimen was more effective for acute myeloid leukemia than CAG regimen alone,which might be related to reduce the serum levels of IFN-γ, HBDH and LDH.
9.Observation of experimental corneal neovascularization induced by alkali burn
lei, ZUO ; xun, XU ; ying, FAN ; feng, WANG ; qing, GU
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(06):-
Objective To induce the experimental corneal neovascularization(CRNV) by alkali burn,and explore the methods for quantitative analysis of CRNV and observation of permeability of CRNV. Methods Thirty-six C57BL/6 mice were selected and divided into experiment group(n=30) and control group(n=6).For the experiment group,alkali burn was induced by application of filter paper with 1mol/L sodium hydroxide to the cornea for 5 s.For the control group,no intervention was conducted.Areas of CRNV were measured on day 4,7,10 and 14 after alkali burn.Histological examinations of cornea were performed with HE staining on day 3, 7,10,16 and 28 after alkali burn.On day 10,endothelial cell marker CD31 was used with immunohistochemical staining for CRNV counting,and fluorescence angiography(FA) was employed to reveal the permeability of CRNV.Corneal ulceration and hyphema were observed everyday.Results CRNV developed after alkali burn,and extincted afterwards.Axenic coneal ulceration and hyphema were frequently observed,with the incidences of 6.7% and 10.0%,respectively.Histologic changes of corneal tissues at different time points could be observed with HE staining.On day 10, CRNV could be labeled and counted with immunohistochemical staining for CD31 antibody,and the permeability of CRNV could be detected by FA. ConclusionCRNV counting with immunohistochemical staining for CD31 antibody and measurement of area of CRNV are appropriate methods for quantitative analysis of CRNV.FA is an effective method in the detection of permeability of CRNV.
10.Survey and analysis of status quo of rural community doctors in Shanghai
jing, LU ; tie-feng, XU ; ying, CHEN ; ya-qing, ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2008;0(S1):-
Objective To explore status quo of Shanghai community health services based on the investigation of rural community doctors in Shanghai suburb,and to propose measures on training rural doctors. Methods Retrospective investigation was carried out in 114 rural community health service centers and 1 563 clinics.Primary investigation included the registration,distribution,age,academic titles and education background. Results The results showed insufficient number of human resources and inadequate investment in human capitals in the primary medical services of Shanghai suburbs,and there was a serious shortage of general practitioners.The other problems included older age,insufficient academic qualifications,and without professional titles. Conclusion We should improve the status and treatment of rural doctors.Job training and well-trained professional students should be encouraged for the primary health services.More and more doctors should be attracted to work in community health service centers.General practitioners' personnal information network and general medical training network should be established,and the general medical education system gets improvement.