Objective To study the serum level of brain natriuretic peptide (BNP) and atrial natriuretic peptide (ANP) in patients with congestive heart failure (CHF) and assess the value of BNP. Methods The serum levels of BNP and ANP were determined by enzyme- linked immnoabsorbent assay.Cardial mdex(CI)and left ventricular election fraction(LVEF)in heart failure stage and period recouery of children with heart failare were determined by Doppler ultrasonography cardiogram. Results The BNP serum levels began to increase before heart failure (P

Bibliometrics ; Biochemistry ; Biotechnology ; China ; Journal Impact Factor ; Periodicals as Topic ; statistics & numerical data ; Science

OBJECTIVETo investigate the prevalence and subtype distribution of human papillomavirus (HPV) infection and its correlation with age among women in Beijing urban area, and provide some epidemiological evidence for the clinical application of HPV vaccines.

METHODSWe collected cervical specimens from 1999 women in the Outpatient Department of our hospital, performed genetyping of HPV-DNA, and analyzed the incidence of HPV infection in different age groups.

RESULTSHPV infection was detected in 502 (25.2%) of the 1999 women patients, with 391 (19.6%) cases of high-risk HPV, which included 326 (83.4%, 326/391) cases of single infection. HPV-16 was the most common type (21.2%, 69/326), followed by HPV-52 (19.3%, 63/326) and HPV-58 (16.0%, 52/326). The prevalence of HPV infection was the highest among the women aged 41 -50 years and the lowest among those over 60 years.

CONCLUSIONThe subtype- and age-specific distribution of HPV infection among women in Beijing urban area shows an obvious heterogeneity, which deserves due consideration in the clinical application of HPV vaccines.

Adolescent ; Adult ; Age Distribution ; Aged ; China ; epidemiology ; Female ; Genotype ; Humans ; Middle Aged ; Papillomaviridae ; classification ; genetics ; Papillomavirus Infections ; epidemiology ; Young Adult

OBJECTIVETo evaluate the monitoring of ultrasonography in artificial vascular graft for arteriovenous fistula and its complications in patients with chronic renal failure.

METHODSEighteen cases of artificial vascular graft arteriovenous fistula after four to six weeks were enrolled. The diameter, the peak velocity and blood flow were examined in arterial fistula. And the artificial vascular diameter, the peak velocity and blood flow of artificial vessels next to artery were all examined and analyzed. And the patients with symptoms in the upper extremity were tested by ultrasound.

RESULTSIntravascular blood showed good filling in fistula and artificial blood vessels in four to six weeks after artificial vascular graft for arteriovenous fistula by color doppler ultrasonography. The arterial fistula diameter, the peak velocity and blood flow were (3.61 +/- 0.68) mm and (298.56 +/- 93.42) cm/s and (583.62 +/- 216.77) ml/min. Artificial vascular diameter in (4.47 +/- 0.61) mm, the peak velocity and blood flow were (219.37 +/- 68.42) cm/s and (325.23 +/- 117.12) ml/min in the artificial blood vessels next to artery. Seven patients with upper extremity discomfort were examined by ultrasonography. One case was serum swollen. Three cases were thrombosis in artificial vessels. One case was pseudoaneurysm. Two cases were edema.

CONCLUSIONSUltrasonography plays a significant clinic role in testing artificial vascular graft for arteriovenous fistula and its complications.

Aged ; Arteriovenous Shunt, Surgical ; Blood Vessel Prosthesis Implantation ; Female ; Follow-Up Studies ; Hemodynamics ; Humans ; Male ; Middle Aged ; Postoperative Complications ; diagnostic imaging ; Postoperative Period ; Ultrasonography, Doppler, Color

Objective To study the effects of angiotensin converting enzyme inhibitor benazepri1 on apoptosis and the expression of Fas and FasL in the kidney of rats with adriamycin-indued nephritic glomeruosclerosis.Methods After uninephrectomy and the injection of adriamycin induced rats model with glomerulosclerosis, benazapril(6 mg/kg) was delivered daily by gavage to the rats in therapeutic groups for 12 weeks.Apoptosis was examined by means of terminal-deoxynucleotidyl trans ferase mediated d-UTP nick end label ling(TUNEL) and immunohistochemistry was utlized to detect the expression of Fas and FasL.Software of pathological analysis quantitated the level of Fas and FasL.Results Compared with those of the control group, the kidney of model group had moresevere glomerulosclerosis, much more apoptotic cells and higher level of exprssion of Fas and FasL. The degree of glomeruloscleroais, the nuxner of apoptotic cells and the level of expression of Fas and FasL were ameliofated by benazepril treatment.Conclusion Benazepril may suppress the excessive apoptosis of kidney cell by lowering the expression of the protin correlatng apoptosis Fas and FasL,so as to postpone the process of glomeruosclerosis.

Objective To investigate the therapeutic effect and mechanism of ribavirin to mice viral myocarditis. Methods Onehundred and twenty mice were randomly divided into 3 groups. Group 1 was normal control group 1 .group 2 CVB3 control group, group 3 ribavirintherapy group. In the latter two groups, 0.2 mL CVB3(10-7.5Tcid5o/mL)was infected into abdominal cavity. Ten mice of each group were killed at the 7 th, 14 th,21 st,28 th day. Mice motality,light and electron microscape, myocardial viral tiler, myocardial pathological score,serum cTnI,malonytdialdehyde(MDA) and cardiac myocyte apoptosis rate(CMAR) were examined.Re-sults The motality,myocardial viral titer,myocardial pathological score,cTnI were lower in group 3(ribavirin therapy group) than in group 2(CVB3 control), and MDA and CMAR were no significant differences between ribavirin group and simple CVB3 group. Conclusion Ribavirin has good treatment effect to mice viral myocardilis,and its mechanism is due to decrease viral titer.

AlM: To analyze personality traits in preoperative patients who undergolaser in situ keratomileusis ( LASlK) and to provide psychological basis for the selection of refractive surgery.
METHODS: Eligible patientswere seeking customized LASlK (group A n=53), conventional LASlK(group B n=75)and non-operation patients with ametropia (group C n=71 ) , who completed 16 personality factor questionnaires (16PF). Statistical analyses were performed with one-way ANOVA by SPSS11. 0 software package.
RESULTS: Compared to group C, patients in group A scored high on dominance and tension levels, and low on emotional stability level(P<0. 05), while patients in group B were more venturesome and more experimenting, but were less vigilant ( P<0. 05 ). Additionally, there were statistical differences between group A and group B on dominance, gallantry and vigilance respectively(P<0. 05). CONCLUSlON: The data indicates that personality profiles of LASlK patients with refractive error influence their decision for correction. Patients need suitable psychological assessment before surgery who actively chose customized LASlK seem to be more assertive and suspicious.

The crude toxin was extracted from hypha and culture solution of Phyllosticta commelimecola through three different polarity solvent: benzinum, puncificatum ethyl acetate and chloroform. The result indicated that the toxin secreted by Phyllosticta commelimecola not only was in hypha but also in culture solution and the extracting effect of ethyl acetate was the best. The soybean median and PSK media can be respectively used as solid and liquid culture media to produce toxin and grow mycelium. The optimal cultural conditions for producing toxin were temperature 32℃,cultured period 14d, cultured ways shaking of 150r/min.

OBJECTIVEViral myocarditis (VM) is one of the most common acquired myocardial diseases in children. However, its pathogenesis is not clear. Recent studies indicate that the cytotoxicity mediated by cytotoxic T lymphocyte (CTL) plays an important role in the development of myocardial injury involved in VM. Apoptosis mediated by Fas/FasL pathway is an essential mechanism of target cells damage by CTL. In this study, the authors investigated the regulatory effects of neutralizing anti-Fas ligand (anti-FasL) antibody on apoptosis and caspase-3 expression in experimental coxsackievirus B3 myocarditis and the role of the CTL mediated apoptosis in myocardium through Fas/FasL pathway in the development of VM.

METHODSA total of 80 BALB/c mice were used in the experiments. They were divided randomly into the following groups: normal control group (Gr1), CVB3 control group (Gr2), IgG control group (Gr3) and anti-FasL antibody therapy group (Gr4). The mice in Gr2, Gr3 and Gr4 were inoculated with 0.15 ml of TCID(50) 10(9)/ml coxsackie virus B3 (CVB3) and the mice in Gr1 with 0.15 ml of Eagle reagent. The mice in Gr3 and Gr4 were inoculated with IgG (0.1 mg/kg) and FasL antibody (0.1 mg/kg) on days 0 and days 3 after inoculation (p.i.), respectively. Eight mice in each group were sacrificed on day 10 p.i. Histopathological studies and terminal transferase-mediated dUTP-biotin nick end labeling (TUNEL) assays were used to quantify inflammation, necrosis and apoptosis in myocardium. The expression of active caspase-3 in myocardium was determined by immunohistochemistry. Caspase-3 mRNA and CVB3 mRNA were analyzed by reverse-transcription polymerase chain reaction (RT-PCR).

RESULTS(1) Caspase-3 activation and apoptosis were seen in the myocardium of mice with myocarditis. They had a significantly positive correlation with the changes of myocardial histopathologic scores (r = 0.81, P < 0.05; r = 0.73, P < 0.05). (2) The pathologic scores, average percentages of apoptotic cardiomyocytes, expression of active caspase-3 (protein and mRNA) and expression of CVB3 mRNA in myocardium of mice in Gr4, were significantly reduced compared to those in the myocardium of mice in Gr2 (P < 0.01, P < 0.01, P < 0.01, P < 0.01, and P < 0.05, respectively) and Gr3 (P < 0.01, P < 0.01, P < 0.05, P < 0.01, and P < 0.05, respectively).

CONCLUSIONMyocytic apoptosis is a key mechanism responsible for myocardial damage in viral myocarditis. Anti-FasL antibody can effectively reduce expression of active caspase-3 protein and mRNA, viral replication, cardiomyocytic apoptosis and myocardial injury in the experimental CVB3 myocarditis.

Animals ; Antibodies, Neutralizing ; therapeutic use ; Apoptosis ; Caspase 3 ; immunology ; Coxsackievirus Infections ; drug therapy ; immunology ; Enterovirus B, Human ; physiology ; Fas Ligand Protein ; immunology ; Mice ; Mice, Inbred BALB C ; Myocarditis ; drug therapy ; immunology ; virology ; Myocardium ; immunology ; pathology ; Virus Replication

Objective To explore the effects of stimulating vagus nerve with pulse current on peripheral blood CD4+T lymphocyte of rats with collagen induced arthritis and its mechanism.Methods To duplicate model rats of experimental arthritis(EA)by intradermal injection of Ⅱtype collagen,divide the rats into 2 groups:vagus nerve stimulation(VNS)group and sham operated group.Rats in VNS group were stimulated at the left cervical vagus nerves for 30 minutes a day with constant square wave,pulse current with intra train of 16 Hz,pulse duration of 1.0 ms,train duration of 10 s,interstimulus interval of 1.5 min and intensities of 3.0 mA.Then flow cytometry and immunofluorescence methods were used to detect the activation of CD4+T lymphocytes(expressing CD71)and the expression of nicotinic acetylcholine receptors alpha 7(nAChR?7)and choline acetyltransferase(ChAT)in peripheral blood CD4+T lymphocytes.Results In VNS group,the expression of nAChR?7 and ChAT were significantly raised in CD4+ T cells at 1st weekend(Pa