3.Serodiagnosis of trichinellosis by ELISA using recombinant nudix hydrolase of Trichinella spiralis
Shao Rong Long, Xiang Yu Tian, Zhong Quan Wang
Tropical Biomedicine 2015;32(4):669-675
Trichinella spiralis nudix hydrolase (TsNd) gene encoding a 46 kDa protein was
expressed in Escherichia coli and the potential of recombinant TsNd protein (rTsNd) as an
antigen for the serodiagnosis of trichinellosis was investigated by ELISA and compared with
those of ELISA with T. spiralis muscle larval excretory–secretory (ES) antigens. The sensitivity
of both ELISA was 100% (30/30), for the detection of anti-Trichinella IgG antibodies in sera of
the experimentally infected mice, and the specificity of rTsNd-ELISA and ES-ELISA was 100%
(54/54) and 98% (53/54), respectively (P>0.05). Serum anti-Trichinella antibodies were firstly
detected by rTsNd-ELISA at 14 days post infection (dpi), then continued to increase with a
detection rate of 100% at 36 dpi. The anti-Trichinella antibody levels at different times after
infection were statistically different (P<0.05). The results showed that the rTsNd might be a
potential candidate antigen for specific serodiagnosis of trichinellosis. But, it needs to be
further evaluated with sera of the patients with trichinellosis and other helminthiasis.
4.Effect of soy isoflavone on incretion of female rats
Xingming ZHONG ; Yiping ZHONG ; Quan QI ; Zhulin MIAO ; Rong CUI ; Xiaolan WANG ; Miqiong HUANG
Chinese Journal of Primary Medicine and Pharmacy 2009;16(1):75-77
Objective To observe the effect of soy isoflavones on incretion of female rats. Methods 42 fe-male rots of 12 weeks old were divided into 3 groups at random. Low dose group were perfused with 40mg · kg-1·d-1 into stomach per day;high dose group were perfused with 80mg·kg-1·d-1 into stomach per day;control group were perfused with physiological saline into stomach. After 14 days,collected blood via jugular vein and tested 4 inde-xes-FSH, LH,E2 and P with chemoluminescence method. Results In 3 groups of soy isoflavones low doee group,soy isoflavones high dose group and control group,FSH were (0.13±0.021) mIu/ml, (0.12±0.018) mIu/ml, (0.15 ±0.024) mIu/ml respectively; LH were (0.17±0.032) mIu/ml, (0.15±0.043) mIu/ml, (0.18±0.047) mIu/ml respectively, which has no obvious differences (P > 0.05) ; E2 were (0.09±0.03) nmol/L, (0.03±0.03) nmol/L, (0.12±0.04) nmol/L respectively; P were (1.43±0.27) ng/ml, (2.82±0.37) ng/ml, (0.67±0.56) ng/ml re-spectivdy. Compare those 3 groups, E2 activeness of soy isoflavones group decreased obviously; but P activeness of soy isoflavones group increased obviously. Conclusion Soy isoflavones has no obvious effect on hypophysis hormone of rat, but the soy isoflavones of different dosages may measure the secretion of female rat ovary hormones by estrogen ac-tivity and antiestrogen activity.
6.Diagnosis and treatment for focal nodular hyperplasia of the liver:report of 34 cases
Liguo LIU ; Weiqi RONG ; Liming WANG ; Yuxin ZHONG ; Fan WU ; Quan XU ; Yipeng WANG ; Jianxiong WU
Chinese Journal of General Surgery 2011;26(6):464-466
Objective To investigate the clinical features,therapeutic approach and prognosis of focal nodular hyperplasia (FNH) of the liver. Methods Clinical data of 34 FNH patients confirmed by operation were analyzed retrospectively. Results Focal nodular hyperplasia of the liver was found mainly in males (67. 6% ) , Mean nodular size was significantly smaller in men than women. Most of the patients (64.7%) had no significant clinical symptoms. Tumor markers including CA19-9 and A-fetoprotein were within normal range. MRI is helpful to achieve a more accurate diagnosis of the disease, correct preoperative diagnosis rate was 54. 5%. All patients underwent liver resection with no recurrence within 17 - 134 months of follow up. Conclusions FHN of the liver is benign in entity. If a definite diagnosis can be obtained preoperatively, observation follow-up are recommended. Hepatectomy is indicated when there is a suspicion of malignancy.
7.Analysis the epidemiology and clinical feature of plague cases from 1981 to 2006 year in China
Fuz-hang, TIAN ; Bai-zhong, CUI ; Guo-jun, WANG ; You-quan, XING ; Zu-yun, WANG
Chinese Journal of Endemiology 2008;27(6):651-653
Objective To summarize the epidemiological feature of plague cases oceuwed in China.Methods The epidemiological and clinical data from 1981 to 2006 year in China were analyzed with descriptive study method.Result Nine hundred and seveneteen human plague cases were diagnosed in 9 provinces(regions) from 1981 to 2006 years,105 cases died,the mortality rate being 11.45%,and they distributed in 69 counties (cities or banners).In Qinghai Province 108 cases were diagnosed,the mortality rate was 46.30%(50/108),the cases distributed in 17 counties(cities);137 cans in Guizhou,distributing in 2 counties(cities);517 cases in Yunnan,distributing in 26 counties(cities).Plague cases peaked separately in 1983,1990,1996 and 2000 years,they were 25,75,98 and 254 separately.The principal spreading ways were breathing flying particles,touching,skinning and eating marmot in Qinghai;750 cases were of bubonic plague,among whom 4 cases in Tibet died,the fatality rate was 0.53(4/750);121 cases were of pneumonic prague,among whom 65 cases died,was accounting for 53.72%(65/121);31 cases were of septieaemic plague,and 30 cases died(one cases was cured in Inner Mongolia),accounting for 96.77%(30/31).Others were brain plague,intestinal plague,tonsil plague and plague cellulites,which were cured.Conclusion From 1990,human plague epidemical scope and intensity is enlarging continuously compared with 1980-1990 and there is a trend of going up gradually in China.
8.Effects of tanshinone ⅡA on ventricular arrhythmias induced by acute myocardial ischemia
Qian ZHOU ; Qiang ZHONG ; Zhaohua WANG ; Cuntai ZHANG ; Xiaoqing QUAN ; Lei RUAN ; Rong BAI ; Jianming XIAO
Chinese Journal of Emergency Medicine 2012;(12):1327-1330
Objective To investigate the effects of Tanshinone Ⅱ A (extracted from Chinese herb medicine Salvia miltiorrhiza Bge.) on ventricular arrhythmias of rabbit hearts induced by ischemia in order to illuminate its mechanism of anti-arrhythmia.Methods Thirty rabbits were randomly (random number)divided into normal group,ischemic group and Tanshinone Ⅱ A group.Model of wedge shaped mass of rabbit left ventricular myocardium with coronary perfusion was prepared,and then by using floating glassy microelectrode,the trans-mural ECG,QT interval,the trans-mural dispersion of re-polarization (TDR) and trans-membrane action potentials from both endocardium and epicardium were simultaneously and wholly recorded.The incidence of ventricular arrhythmia in myocardium was observed after ischemia for thirty min.Results Under the condition of acute ischemia,compared with normal group,the incidence of ventricular arrhythmia and TDR were significantly increased in ischemia group (P < 0.01),while incidence of ventricular arrhythmia and TDR were significantly reduced in tanshinone ⅡA group compared with ischemia group (P < 0.05).The incidences of ventricular arrhythmia in normal,ischemia and Tanshinone Ⅱ A groups were 0/10,9/10 and 2/10 respectively.Conclusions Tanshinone Ⅱ A prevents ventricular arrhythmia and reduces TDR significantly in ischemic rabbit hearts.
9.Expression and Significance of Tumor Necorisis Factor Related Apoptosis Induced Ligand Receptor(TRAILR) in Human Craniopharyngioma
zhong-wei, ZHAO ; dong-ling, GAO ; xin-jun, WANG ; quan, LIU ; yun-han, ZHANG
Journal of Applied Clinical Pediatrics 1986;0(01):-
Objective To investigate the expression and significance of tumor necorisis factor related apoptosis induled ligand receptor(TRAILR) in human craniopharyngioma.Methods The expression of TRAILR was determined by immunohistochemistry and in situ hybridization in 24 samples of craniopharyngioma and 16 samples of normal brain tissue.Results With low decoy receptor(DcR) expression in partial craniopharyngioma cells and low death receptor(DR) expression in partial normal brain cells,DR was expressed highly in all craniopharyngioma samples while DcR in most normal brain tissue. High DR expression and low DcR expression in craniopharyngioma tissue differed from low DR expression and high DcR expression in normal brain tissue(P
10.Clinical Features and Influential Factors of Therapeutic Efficacy of Reflux Esophagitis in Elderly Patients with Type 2 Diabetes Mellitus
Xuping ZHOU ; Ronghai HE ; Hong QUAN ; Yichun ZHONG ; Ying ZHOU ; Jianmei WANG ; Xianghua TU
Chinese Journal of Gastroenterology 2014;(12):730-733
Background:The prevalence rate of diabetes mellitus ( DM ) associated with gastroesophageal reflux disease ( GERD)is increasing recently,and the relationship between DM and GERD has become a research hotspot. Aims:To study clinical features and influential factors of therapeutic efficacy of reflux esophagitis( RE)in elderly patients with type 2 DM(T2DM). Methods:Two hundred elderly patients with RE diagnosed by gastroscopy from March 2011 to October 2013 were enrolled,and divided into T2DM associated with RE( T2DM)group and RE group. The clinical features, endoscopic findings and therapeutic efficacy of the two groups were analyzed,and the influences of DM course and control of blood glucose on efficacy of RE were also analyzed. Results:The main manifestations of RE were extraesophageal symptoms,typical esophageal symptoms were less common. The overall efficacy rate decreased with the increase of endoscopic grade of RE,however,extraesophageal symptoms improved significantly. With the prolonging of DM course,the endoscopic grade of RE was increased,and the control of blood glucose was worse. The overall therapeutic efficacy was significantly reduced with the prolonging of DM course in patients with well controlled blood glucose. Conclusions:Extraesophageal symptoms are common,endoscopic grade of RE is worse and blood glucose is difficult to control in elderly T2DM patients associated with RE. DM course and status of blood glucose control have influences on the therapeutic efficacy of RE.