中药控制扁平苔藓患者白色念珠菌检出率及分离株毒力的临床研究

目的:阐明口腔扁平苔藓(oral lichen planus,OLP)与白色念珠菌(candida albicans,CA)关系的同时,研究自制中药含漱液在控制OLP患者CA检出率的作用,及对CA分离株毒力的控制?方法:选取糜烂型OLP患者?非糜烂型 OLP 患者及健康对照组各100例?用药前和用药7天后分别采用浓缩含漱液沙堡平皿培养法,并结合应用芽管试验?厚膜孢子形成试验及温度试验常规培养等方法分离?鉴定各组中念珠菌菌种?将分离?纯化的CA,接种于血琼脂平板上,厌氧培养,检测其溶血活性?结果:用药前糜烂型 OLP 患者念珠菌培养阳性率和阳性样本的菌落数显著高于非糜烂型OLP患者和对照组(均为P < 0.01);3组之间CA检出率比较,糜烂型 OLP(66%)显著高于非糜烂型 OLP(26%)和健康对照组(12%)(P < 0.01)?采用两种不同药物含漱7天后,CA检出率显著降低,中药组较口泰组减少更为显著,差异有统计学意义(P < 0.01);用药前所有CA在接种于血琼脂平板培养48 h后均产生了溶血,用药后溶血活性均显著降低,中药组较口泰组降低更为显著(P < 0.01)?结论:糜烂型 OLP真菌培养阳性率较高,菌落数也较多,尤其是致病性CA分离阳性率高,提示OLP糜烂型的发生发展与CA感染有关?中药能有效控制OLP患者CA检出率,减少OLP患者口腔内CA含量,并能抑制CA毒力,提示中药含漱液对OLP患者有一定的抗真菌治疗作用?     

口腔扁平苔藓患者白色念珠菌分离株的基因型分析

目的 研究健康人和口腔扁平苔藓(oral lichen planus,OLP)患者口腔白色念珠菌分离株的基因型分布特征．方法 应用随机扩增片段多态性分析法(randomly amplified polymorphic DNA,RAPD),对来自于健康人(26株)、糜烂型OLP患者(62株)以及非糜烂型OLP患者(24株)共112株白色念珠菌菌株做基因型分型,比较OLP患者与健康对照组白色念珠菌分离株的基因型分布差异．结果 本研究采用的RAPD分析法可大致将所有白色念珠菌分离株分为A、B、C、D四种基因型;健康对照组、糜烂型OLP和非糜烂型OLP患者组的白色念珠菌分离株的基因型构成具有差异,其中,健康对照组以B、D型为主,糜烂型OLP患者组以A、C型为主,非糜烂型OLP患者组以A、D型为主。结论 某些具有特定基因型的白色念珠菌与OLP的发生发展可能相关。     

NF-κBp65在口腔扁平苔藓和口腔鳞癌中的表达和意义

目的:研究核转录因子Κappa B(NF-κB)在口腔扁平苔藓(oral lichen planus,OLP)和口腔鳞癌(oral squamous cellcarcinoma,OSCC)中的表达及意义。方法:采用免疫组化SP法检测16例正常口腔黏膜组织、20例OLP黏膜组织(分为11例糜烂型及9例非糜烂型)、30例OSCC组织中NF-κB p65的表达。结果:NF-κB p65在正常口腔黏膜、OLP、OSCC的表达率分别为:0%、55%、80%,三组之间差别具有统计学意义(P<0.05)。OLP、OSCC之间差别没有统计学意义(P>0.05)。糜烂型OLP与OSCC之间差别没有统计学意义(P>0.05)。结论:NF-κB p65的活化可能加重了OLP的炎性反应,促进其癌变可能、OSCC的发生。     

口腔扁平苔藓组织中P物质的表达研究

目的：检测P物质（SP）在口腔扁平苔藓（OLP）组织中的表达,探讨SP与OLP的关系。方法：采用免疫组织化学技术检测19例口腔扁平苔藓和正常人口腔黏膜组织中SP的表达。结果：比较OLP组和正常对照组SP的表达,差异有统计学意义（P〈0.05）,SP在OLP病损组织中表达高于正常黏膜组织;比较SP在糜烂型OLP组与非糜烂型OLP组的表达,差异无统计学意义（P〉0.05）。结论：SP在OLP组织中表达增高,SP在OLP的发生发展中可能参与了淋巴细胞的浸润及增殖,并参与了OLP慢性炎症机制。     

肿瘤坏死因子-α单核苷酸多态性与口腔扁平苔藓的相关性研究

目的研究肿瘤坏死因子-α(TNF-α)与口腔扁平苔藓(oral lichen planus,OLP)的相关性。方法应用限制性片段长度多态性-聚合酶链反应(PCR-RFLP)检测151例OLP患者(包括81例糜烂型扁平苔藓和70例非糜烂型扁平苔藓)和143例健康对照者的TNF-α-308位点单核苷酸多态性,分析其基因型和等位基因频率,并进行关联分析。结果TNF-α-308位点的基因型和等位基因频率分布在OLP组与对照组之间无显著性差异(P>0.05),但在糜烂型OLP组与对照组之间比较均有显著性差异(P<0.05);基因型频率的相对风险分析发现,TNF-α-308 TNF2基因型患糜烂型OLP的风险是TNF1的2.268倍(OR=2.268,P<0.05)。结论 TNF-α基因启动子区-308位点的多态性可能不是影响OLP的一个独立因素,但TNF-α-308*A等位基因可能是扁平苔藓局部炎症反应加重的危险因子之一。     

角质细胞生长因子及其受体在口腔扁平苔藓和口腔鳞状细胞癌中表达的研究

目的：探讨角质细胞生长因子（KGF）及其受体（KGFR）在口腔扁平苔藓（OLP）和口腔鳞状细胞癌（OSCC）的表达及意义。方法：运用免疫组化SP法研究KGF及KGFR在糜烂型、非糜烂型OLP,高、中、低分化OSCC中的表达。结果：KGF在糜烂型和非糜烂型OLP中的表达差异无统计学意义,在高、中、低分化OSCC中表达差异也无统计学意义,但KGFR在非糜烂型OLP、正常口腔黏膜（NOM）、糜烂型OLP表达逐渐增强,差异具有统计学意义,KGFR在高、中、低分化OSCC中表达逐渐减弱,差异有统计学意义。结论：KGF对OLP,OSCC发生可能并不起关键作用。KGFR可能是影响口腔黏膜上皮细胞增殖的重要因素,可能与OLP的发病有关,且可作为监测OLP癌变的早期指标,KGFR还可能与OSCC的分化程度有关。     

口腔扁平苔藓组织微血管密度的分析研究

目的:测定正常颊黏膜组织、糜烂型及非糜烂型口腔扁平苔藓(Oral lichen planus,OLP)组织和颊癌组织的微血管密度(Microvessel densiy,MVD),观察其MVD的变化,为进一步探讨OLP的发病机理及治疗方法提供参考.方法:选择2008年12月至2010年3月在重庆医科大学附属口腔医院就诊的...     

口腔扁平苔藓病损中肥大细胞超微结构特点研究

目的：探讨肥大细胞在口腔扁平苔藓（oral lichen planus,OLP)发病机制中的作用和表现特征。方法：OLP病损组织丘疹及斑纹型15例，糜烂型15例，应用光镜对成熟型和非成熟型肥大细胞的分布，染色颗粒等观察，应用JEOL，JEM-1200EX电镜，对T肥大细胞和TC肥大细胞的超微结构进行观察。分析其相互间和与正常组织肥大细胞的区别。结果：T肥大细胞均存在于正常和OLP病损组织中，在OLP病损中T肥大细胞和TC肥大细胞超微结构发生变化。糜烂型较重，主要表现在细胞膜溶解和指状突的消失，核膜分离，线粒体变性，颗粒肿胀及脱颗粒等。非成熟型肥大细胞较成熟型肥大细胞具有高核浆比，颗粒小，颗粒数量少的特点，结论：肥大细胞作为免疫活性细胞在OLP的发病机制中起重要作用。     

survivin,P21在人口腔扁平苔藓及口腔鳞癌中的表达

目的：探讨凋亡抑制因子survivin,P21基因在口腔扁平苔藓（OLP）、口腔鳞状细胞癌（OSCC）中的表达意义及其关系.方法：采用免疫组化SP法检测26例正常口腔黏膜组织、40例糜烂型OLP组织及40例OSCC组织survivin,P21基因的表达,并分析其相关性.结果：survivin蛋白、P21蛋白在正常口腔黏膜组织、OSCC组织和糜烂型OLP组织中的表达差异均有显著性（P〈0.05）.survivin蛋白与P21蛋白在三种组织中的表达呈正相关（rs=0.658,P〈0.05）.结论：sur-vivin,P21与OLP向OSCC转变有关,它们在OSCC的发生发展中起重要作用.     

口腔扁平苔藓患者黏膜上皮细胞骨桥蛋白的表达

目的 研究口腔扁平苔藓(OLP)患者病损局部黏膜上皮细胞中骨桥蛋白(OPN)的表达.方法 经病理学检查确诊的OLP患者40例,其中17例伴轻度异常增生;充血糜烂型15例,网纹/斑块型25例.免疫组化法检测患者病损部位口腔黏膜上皮细胞OPN表达.以40名健康志愿者作为正常对照.结果 OLP及伴轻度异常增生OLP病损局部黏膜上皮细胞OPN表达阳性率分别为65.4%和82.4%,与正常对照的10.0%比较,差异均有统计学意义(P<0.05).充血糜烂型和网纹/斑块型OLP病损局部黏膜上皮细胞OPN表达阳性率分别为73.3%和60.0%,均显著高于正常对照(P<0.05),但OLP二类型之间比较差异无统计学意义(P>0.05).结论 OPN表达在OLP患者病损局部明显增加,提示OPN可能参与了OLP疾病的发生和癌变发展过程.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.     

Possible Spread of adenovirus type 3 from poultry to humans ：indirect evidence from an outbreak in China

Objective:To explore the epidemiology and etiology for an outbreak of acute respiratory tract infection that occurred in one county of Jiangsu Province, China 2004. Methods: Only cases meeting the case definition were included in the study. We reviewed the medical records of the cases who were admitted to the local hospitals, interviewed cases by a standard questionnaire, and then described the epidemiotogic features and analyzed risk factors by means of a case-control study. We collected pharyngeal swab specimens and sent them to different laboratories for isolation and culture. The laboratory used different detection methods such as DIP, PCR, electron microscope examination and microneutralization assay, to identify and then type the positive specimens. Results:A total of 871 cases were reported during the period from April 18 to July 4,2004. The distribution of onset times presented two peaks, one in late May and another in middle June. The epidemic occurred mainly in the elementary and junior high schools in ten townships of one county, and the mean age of the cases was 12 years (range 7 months to 18 years). The course of the disease was acute, and was characterized by fever accompanied with sore throat and tonsillitis. The WBC count of cases was normal or elevated. The mean duration of illness was 5 days (range 2 to 12 days). No fatalities from illness were reported. A case-control study indicated that the possible risk factors were close contact with a case and/or poultry before onset and sharing of towels among members of the family. The typical CPE was observed through inoculating pharyngeal swab specimens into the HEP-2 cell cultures in different laboratories. An infection of adenovirus type 3 was verified by detecting positive specimens in different methods. Conclusion:This investigation demonstrated that the acute respiratory infection in cases was caused by adenovirus type 3. Cases occurred in over 70 schools in ten townships in 2004, and the route of transmission was possibly close contact with cases or droplet transmission.