石家庄地区鼠寄生四翼无刺线虫的调查

目的调查石家庄地区鼠类寄生虫感染情况。方法采用鼠笼法、鼠夹法隔夜抓捕鼠类,进行鼠群种类、鼠龄、性别鉴定和体内寄生虫分类。结果共捕获鼠592只,采集到体内感染疑似四翼无刺线虫的鼠9只,全部为小家鼠,该寄生虫在该鼠种的感染率为5.9%,感染强度为5~9条/只,平均感染强度为7条/只。对采集的线虫经过寄生虫形态学分类全部鉴定为四翼无刺线虫(Aspiculuris tetraptera Nitzsch,1821)。结论石家庄地区各鼠种仅小家鼠体内检测到四翼无刺线虫。     

615小鼠肠道寄生虫感染初报

615小鼠已广泛应用于多种实验研究并取得很大进展。加快其繁殖并使之逐渐达到不同等级的实验动物质量标准,已成为当前急需解决的问题。实验动物的寄生虫学监测是实现上述目标的一个重要方面。为此,对我院在一般清洁条件下,按近交系小鼠要求常规饲养繁殖的部分615小鼠进行了肠道寄生虫检查。现将部分结果简报如下。 1.检出虫种鼠毛滴虫 Trichomonas muris 鼠管状线虫 Syphacia obvelata 四翼无刺线虫 Aspiculuris tetraptera 2.四翼无刺线虫感染率为85.3％(58/68)。最多时从一只雄鼠大肠检获成虫670条。与鼠管状线虫比较,该虫似为优势种。     

啮类实验动物蛲虫活虫体的简易收集法

啮齿类实验动物限于大鼠、小鼠和地鼠三种。据载〔1〕在我国开放条件下饲养的鼠群中,其蛲虫感染率高达80%,虫种分隶2属(无刺属Aspiculuris及管状属Syphacia)4种(四翼无刺线虫A.tetraptera、隐藏管状线虫S.Obvelata、鼠管状线虫S.muris及地鼠管状线虫S.mesocriceti)。其中除管状线虫具宿主特异性外,四翼无刺线虫三种鼠均可感染,故蛲虫检查时要考虑到虫种混合感染的可能性。另由于两属蛲虫产卵部位不同,施用方法亦异.     

鼠蛲虫肠道内的鼠三毛滴虫

检测4种鼠蛲虫:四翼无刺线虫(Asplculuris tetraptera)、隐藏竹状线虫(Syphacia obvelata)、鼠管状线虫(Syphacia muris)及地鼠管状线虫(Syphacia mesocriceti)。后3种分别寄生于小鼠、大鼠及地鼠外,前一种在3种鼠中均可查见。4种蛲虫肠道内均不同程度的查见有鼠三毛滴虫(Tritrichomonas muris(T.m)寄生,其中以Aspicultr is tetratera的T.m感染串高达93.0%,且感染度亦最重。     

三种鼠蛲虫虫体蛋白的盘电泳分析

目的：实验分析寄生于鼠类的三种蛲虫虫体蛋白的异同,探索此三种线虫生化分类的可行性。方法：用圆盘电泳方法对隐藏管状线虫、鼠管状线虫、四翼无刺线虫的虫体蛋白进行分析。结果：三种蛲虫的蛋白组分互有不同,重复实验结果稳定,具有虫种特异性。结论：虫体蛋白盘电泳分析可用于鼠蛲虫分类鉴定。     

实验小白鼠肠道内线虫感染情况调查及分析

目的为了调查西安市实验小鼠肠道内线虫感染情况,并比较剖检法和粪检法的差异。方法采用剖检法和粪检法分别取封闭群ICR小鼠肠内容物和粪便涂片于光镜下检测。结果检测出两种肠道内线虫:隐藏管状线虫和四翼无刺线虫,其感染率分别为53.82%和51.64%,总感染率71.27%。并且两种检测方法结果有差异,其差异有统计学意义(P﹤0.01)。结论西安市Ⅰ级封闭群ICR小鼠肠道内线虫感染严重,而且剖检法比粪检法对于检测小鼠肠道内线虫阳性率更高。     

中国实验动物中鼠管状线虫的分子鉴定和感染调查

目的对鼠管状线虫进行分子鉴定和感染调查,为国家标准的修订提供参考依据。方法 923批5199只SPF动物(包括:1批5只猴,3批25只小型猪,28批55只兔,13批248只地鼠,37批198只豚鼠,93批459只大鼠,742批4179只小鼠,5批25只鸡和1批5只鸭)和145批1389只清洁动物(包括:1批3只兔,4批31只地鼠,16批157只豚鼠,32批268只大鼠和92批930只小鼠)来自全国50个不同的厂家。应用直接镜检实时动态显微视屏摄录技术结合形态学鉴定方法,进行鼠管状线虫感染筛查。应用多重PCR和测序技术,鉴定分离的鼠管状线虫ITS(内转录间隔区)、28S rRNA(28S核糖体RNA)、nad1(NADH脱氢酶亚单位1)和cox1(细胞色素C过氧化物酶亚基1)基因,从分子水平上确证鼠管状线虫感染。结果应用直接镜检实时动态显微视屏摄录技术,从动物中检出鼠管状线虫的虫卵、幼虫和成虫。根据鼠管状线虫的卵细胞、幼虫、雌雄成虫的大小和形态来鉴定虫种。应用多重PCR测序技术,能从分离的单个鼠管状线虫的虫卵、幼虫和成虫中鉴定出ITS、28S rRNA、nad1和cox1基因,与其他不同种属的寄生虫无交叉反应。应用直接镜检实时动态显微视屏摄录技术,从5199份SPF和1389份清洁动物样本中分别检出鼠管状线虫阳性样本285份和135份。应用多重PCR和测序技术,鉴定证明这些阳性样本中确实含有鼠管状线虫特异性的DNA。测序结果显示,不同动物分离的鼠管状线虫的ITS、28S rRNA、nad1和cox1部分基因序列核苷酸相似性达100%。SPF和清洁动物的鼠管状线虫感染率分别为5.5%(285/5199)和9.7%(135/1389)。结论应用直接镜检实时动态显微视屏摄录技术联合多重PCR测序技术能够快速精准检测鉴定出鼠管状线虫。鼠管状线虫的人兽共患本质可以视作为公共卫生的一个预警。良好的动物质量控制对保护人类身体健康和保障人民用药安全具有重要作用。本研究对中国SPF和清洁动物的鼠管状线虫进行了分子鉴定和感染调查。     

鼠蛲虫肠道内的鼠三毛滴虫

<正> 本文所指的鼠蛲虫系一类寄生虫的统体,包括4种:四翼无刺线虫(Aspiculuris tetraptera)、隐藏管状线虫(Syphacia obvelata)、鼠管状线虫(S.muris)及地鼠管状线虫(S.mesocriceti)。前者在实验鼠中均有感染,后3种分别寄生于小鼠、大鼠和金黄地鼠肠道内,为各自宿主的专性寄生虫。4种蛲虫肠道内查见的鞭毛虫有鼠三毛滴虫(Tritrichomonuis muris)、鼠贾第鞭毛虫(Gurrdia muris)及一未定的小型鞭毛虫滋养体。鼠三毛     

沈阳市小鼠肠道蠕虫感染情况调查

为了解沈阳市普通级昆明小鼠寄生虫感染情况，对市内不同区5个单位的小鼠肠道内寄生虫进行了调查．结果发现有短膜壳绦虫(小肠及结肠)，隐藏管状线虫(盲肠)及四翼无刺线虫(结肠)。感染率在95％～100％，而三种分别的感染率为30%～70％、53%～100％及40％～100％。     

小鼠蛲虫常规检查法与剖检检出率之间的误差分析

小鼠体内的两种蛲虫是指隐藏管状线虫和四翼无刺线虫，二程蛲虫产卵杨所各异，故取材及检查方法不同．如非毁鼠，从简便方法查起，透明腔纸肛周检查结果为31．5-40％，阴性者再粪检，结果检出率挺高到60%，提高部分的2／3系四翼无刺线虫卵的检出．二法检查再为丽性者剖检，结果累积检出率达到了90%，这与同一群体随机取样单纯剖检的83．75％的感染率是一致的，所以，一般非毁鼠的通常蛲虫检查法有可能漏检30～50%。     

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.