1.Detection of Nitric Oxide, Glutathione and Superoxide Dismutase in Ovarian Neoplasm
Xiaoning WANG ; Fang WEN ; Yang ZHENG
Journal of China Medical University 2001;30(2):119-121
Objective: Our aim was to study the relationship between nitric oxide and ovarian neoplasm. The concentrationg of nitrite /nitrate (NO-2/NO-3),glutathione(GSH), and the activity of superoxide dismutase(SOD) were detected in ovarian tissues.Methods:A modified copper-coated cadium reduction method was used to detect NO-2/NO-3. Dithio-bis-nitrobenzoic acid (DTNB) method was used to detect the GSH concentration. The activity of SOD was measured by an ultramicroanalytic and rapid assay. All the data were obtained from 21 patients with ovarian neoplasm(10 with benign ovarian neoplasms,and 11 with ovarian carcinomas). This paper is concerned with the analysis of matched case-control studies. The carcinoma tissues and normal ovarian tissues were obtained from the same patient. We performed Paired-Samples t test to determine whether the NO-2/NO-3,GSH and the activity of SOD in carcinomas and normal ovarian tissues have significantly difference. Results:No significant difference for the concentration of NO-2/NO-3,GSH and activity of SOD was shown in the normal ovarian tissues and neoplasm tissues of benign neoplasm . The concentrations of GSH and activity of SOD in normal ovarian tissues were significantly higher than ovarian carcinomas(P<0.05). No significant difference of concentration of NO-2/NO-3 was shown in normal ovary and ovarian carcinomas. In the normal tissues of all patients, NO-2/NO-3 was positively correlated with GSH and SOD. Glutathione was positively correlated with SOD. In the ovarian neoplasms, there was no significant correlation between NO-2/NO-3 and GSH, NO-2/NO-3 and SOD,GSH and SOD.Conclusion: Nitric oxide and the other matters which attend the course of its metastasis may closely related to ovary neoplasms.
2.Advances in protective agents against high power microwave radiation damage
Wen ZHENG ; Changzhen WANG ; Xiangjun HU
Military Medical Sciences 2014;(12):986-989
Along with the development of science and technology , microwaves are widely used in various fields .Though they have brought much convenience to people , their potential adverse health effects are becoming a concern of governments and researchers .High power microwaves ( HPMs) are widely used in high-tech and new concept weapons , increasing the chance that troops are exposed to HPM environments .It has been clearly confirmed that microwave radiation could cause varying degrees of damage to the nervous system , immune system , cardiovascular system and reproductive system under specific conditions .Therefore , it is of important significance to reduce adverse effects of HPM radiation and improve the combat capability of troops via effective medical protection while doing well in physical protection .According to the mecha-nism and characteristics of microwave radiation damage effects , recent advances in microwave radiation protection are re-viewed in this article , hoping to facilitate research on safer and better drugs .
3.Determination of Trace Lead in Fresh Marine Products by Fluorescence Spectrophotometry
Dianyuan ZHENG ; Chunjing WANG ; Wen ZHOU
Journal of Environment and Health 1992;0(05):-
0.05). Conclusion The method is simple,accurate,reliable,less-reagent used and little inference of other metal ions. It is suitable for rapid determination of lead in the fresh marine products.
4.Brucella orchitis: A retrospective study of 69 cases.
National Journal of Andrology 2016;22(1):46-51
OBJECTIVETo investigate the epidemiological characteristics, clinical manifestations, diagnosis, and treatment of Brucella orchitis, so as to provide reliable evidence for the prevention and treatment of the disease.
METHODSWe conducted retrospective statistical analyses on the medical records of 48 outpatients and 21 inpatients with Brucella orchitis.
RESULTSBrucella orchitis was diagnosed in 6.67% of the male patients with brucellosis (69/1 034). The disease exhibited typical epidemiological features, with a higher incidence rate among those in frequent contact with sheep and elderly people, in the period from April to July, and in the areas with sheep husbandry. All the Brucella orchitis patients had such local symptoms as testicular pain and swelling, more frequently involving both testes, and other most common symptoms included fever, chills, sweating, and painful joints. Based on IIEF-5, 45 of the patients suffered from severe erectile dysfunction, with their reproductive function temporarily affected in the course of the disease. Misdiagnosis easily occurred in the early stage of the disease. Therapeutic options mainly included doxycycline hydrochloride and rifampicin, administered orally or intravenously, which could effect a cure, though relapse might occur in some cases.
CONCLUSIONBru- cella orchitis has distinct epidemiological characteristics, with clinical manifestations of testicular pain and swelling. Though a transient disease, it affects the reproductive function of the patient before cured. It can be treated by combined oral and intravenous medication, with painkillers or ice bags for testicular pain and swelling.
Animals ; Brucella ; pathogenicity ; Brucellosis ; complications ; diagnosis ; therapy ; Humans ; Male ; Orchitis ; diagnosis ; microbiology ; therapy ; Retrospective Studies ; Sheep
5.Correlation between peripheral blood CD+4CDhigh25CDlow127 regulatory T cell and clinical characteristics of patients with non-Hodgkin's lymphom
Lieyang WANG ; Zhiqiang ZHAO ; Yanfeng WANG ; Wen SU ; Yuping ZHENG
Journal of Leukemia & Lymphoma 2012;21(4):218-220,224
Objective To explore the relationship between CD+4CDhigh25CDlow127 Treg level of peripheral blood and NHL.Methods The level of peripheral blood CD+4CDhigh25CDlow127 Treg of 123 newly diagnosed NHL and 41 healthy adults were test by flow cytometry.Results The average peripheral blood CD+4CDhigh25CDlow127 Treg level were 5.0 % (2.7 %) and 7.2 %(3.8 %) in healthy adults and newly diagnosed NHL patients,respectively.The difference between the two groups was statistically significant(Z=-2.816 P=0.001 ).The peripheral blood Treg level was significantly higher in the male NHL patients than that in the female (7.4% vs 6.1%,Z=- 2.729,P=0.006).The peripheral blood Treg level was significantly higher in elevated LDH patients than that in normal LDH patients(7.8% vs 7.0%,Z=-2.623 P=0.008).The peripheral blood Treg level was significantly higher in stage Ⅲ-Ⅳ patients than that in stage Ⅰ -Ⅱ patients (7.3% vs 5.9%,Z=-2.057 P=0.04). There was no significant relationship between peripheral blood Treg level and age, IPI score,extranodal involvement,performance status,bulky disease,pathologic subtype or B symptom (P >0.05).Conclusions NHL patients are in an immunosuppresive statue.Patients of male,with inreased LDH level or in stage Ⅲ-Ⅳ have higher peripheral blood CD+4CDhigh25CDlow127 Treg level.
6.CYP2J2 and its metabolites (EETs) attenuate cardiac hypertrophy by activating AMPKα2 and enhancing nuclear translocation of Akt1
Bei WANG ; Hesong ZENG ; Zheng WEN ; Chen CHEN ; Daowen WANG
Chinese Journal of Pathophysiology 2016;32(8):1497-1497
AIM:Cytochrome P450 epoxygenase 2J2 and epoxyeicosatrienoic acids ( EETs) are known to protect against cardiac hypertrophy and heart failure, which involve activation of 5′-AMP-activated protein kinase ( AMPK) and Akt.Although the functional roles of AMPK and Akt are well established , the significance of crosstalk between them in the development of cardiac hypertrophy and anti -hy-pertrophy of CYP2J2 and EETs remains unclear .Here, we investigated whether CYP 2J2 and its metabolites EETs protected against cardiac hypertrophy by activating AMPKα2 and Akt1.Moreover, we tested whether EETs enhanced crosstalk between AMPKα2 and phosphorylated Akt1 ( p-Akt1), and stimulated the nuclear translocation of p-Akt1, to exert their anti-hypertrophic effects. METHODS:The recombinant rAAV9 vector was coupled to CYP2J2 and the rAAV9-CYP2J2 construct was injected into the caudal vein of AMPKα2-/-and littermate control mice .AMPKα2 -/-and littermate control mice that overexpressed CYP 2J2 in heart were treated with angiotensin II (Ang II) for 2 weeks.Hemodynamic and cardiac functions were also evaluated after 14 days of infusion with Ang II or saline.RESULTS:Interestingly, the overexpression of CYP2J2 suppressed cardiac hypertrophy , including decreased heart size, cross sectional area of cardiomyocytes , markers of cardiac hypertrophy [ brain natriuretic peptide ( BNP) ,β-myosin heavy chain (β-MHC) and skeletal muscle α-actin (ACTA1)] and increased levels of atrial natriuretic peptide (ANP) in the heart tissue and plasma of wild-type mice but not AMPKα2 -/-mice.Measurement of left ventricular ejection fraction and fractional shortening showed that CYP2J2 overexpression prevented Ang II-induced ventricular systolic dysfunction in mice .Moreover, an Ang II-induced reduction in cardiac function, demonstrated by decreased dp/dtmax and dp/dtmin, was prevented by overexpression of CYP2J2.Mechanistically, the CYP2J2 metabolites 11,12-EET activated AMPKα2 to induce the nuclear translocation of p-Akt1, which increased production of ANP and thereby inhibited the development of cardiac hypertrophy .Furthermore , by co-immunoprecipitation analysis , we found that full-length Akt1 and an Akt1 fragment containing amino acids 150-408, which constitute the protein kinase domain , but not other frag-ments of Akt1, bind to the AMPKγ1 subunit.AMPKα2β2γ1 and p-Akt1 interact through the direct binding of the AMPKγ1 subunit to the Akt1 protein kinase domain.This interaction was enhanced by 11,12-EET.CONCLUSION:Our studies reveal a novel mechanism in which CYP2J2 and EETs enhanced Akt1 nuclear translocation through interaction with AMPKα2β2γ1 and protect against cardiac hy-pertrophy and suggest that overexpression of CYP 2J2 might have clinical potential to suppress cardiac hypertrophy and heart failure .
7.Expression of SCC-Ag and CEA and its clinical significance in patients with lung cancer
Xiaoling LIU ; Tao WANG ; Wen WANG ; Ying JIANG ; Wei ZHENG
Journal of Xi'an Jiaotong University(Medical Sciences) 2004;0(05):-
Objective To investigate the ex pr ession of squamous cell carcinoma antigen (SCC-Ag) and carcinoembryanic antigen (CEA) and its clinical significance in patients with lung cancer. Meth ods The pre-treatment serum from 134 patients with lung cancer from 1998 to 2002 were analyzed for the SCC-Ag level and CEA level by IMX, and the correlation of the SCC-Ag level and CEA level with the clinicopathologic charac teristics were also detected. Results Significant correlations were found between the pre -treatment SCC-Ag level, and CEA level and the pathologic classification, clin ical stage, the positive rate of diagnosing lung cancer was raised by combined a ssay with serum SCC-Ag and CEA. Conclusion Pre-treatment and after-treatment measurement of serum SCC-Ag level and CEA level can be used for diagnosis, prediction of pr ognosis and monitor of after-treatment recurrence in patients with lung cancer.
8.Nasal cavity volume and nasopharyngeal cavity volume in adults measured by acoustic rhinometry
Jun ZHENG ; Yipeng WANG ; Zhen DONG ; Zhanquan YANG ; Wen SUN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2000;(11):494-495
Objective:To investigate the range of normal value of total nasal cavity volume(NV)and total na-sopharyngeal cavity volume (NPV)of healthy adults. Method: Six hundred and fifty-nine healthy adults andeighty-two adults of chronic rhinitis were measured with acoustic rhinometry. Result:The range of NV was29. 922~37. 481 cm3 and NPV was 29. 369~44. 159 cm3. Comparing healthy adults with adults of chronic rhini-tis,there was a significant difference in NV. Conclusion:Acoustic rhinometry suited for objective assessment ofthe nasal airways in adults. It was demonstrated that these data could provide available information for the studyof nasal physiology and pathophysiology,as well as for the diagnosis and judgement of therapeutic effectiveness ofnasal diseases.
9.Evaluation of the right ventricular longitudinal strain and strain rate in patients with type 2 diabetes mellitus by two-dimensional speckle tracking imaging
Xiaolin WEN ; Ling WANG ; Yanyan ZHENG ; Chaoxue ZHANG ; Sheng ZHAO
Chinese Journal of Ultrasonography 2012;21(9):762-766
Objective To assess the right ventricular (RV) performance in patients with type 2 diabetes mellitus (2-DM) by two-dimensional speckle tracking imaging (2D-STI),and to explore the clinical value of RV longitudinal strain and strain rate.Methods Thirty-seven patients with 2-DM only and thirtyone patients coexisting diabetes and hypertension (DM + HTN) were studied.Thirty-nine healthy age matched persons served as control subjects.In each patient a conventional two-dimensional echocardiography was performed and also an echocardiographic study with strain/strain rate imaging was studied.Analysis of RV longitudinal systolic strain were obtained in the apical four-chamber view of the RV for the assessment of the RV free wall(F-PLSS),interventricular septum (S-PLSS) and the global RV wall (G-PLSS).The entire RV longitudinal peak systolic strain rate (G-SRs),peak early-diastolic strain rate (G-SRe) and peak late-diastolic strain rate (G-SRa) were performed in the apical four-chamber view.Results Compared with controls,F-PLSS,S-PLSS,G-PLSS,G-SRs and G-SRe were decreased in 2-DM and DM + HTN (all P <0.01),with lower values in DM + HTN (P <0.05).In the patients coexisting diabetes and hypertension,G-SRa was significantly lower than those in the control group (P < 0.05).Compared with 2-DM,this difference was not significant in controls and DM + HTN (P >0.05).Conclusions No matte the patients of 2-DM with or without hypertension,the early changes of RV dysfunction can be found by 2D-STI.Patients coexisting diabetes and hypertension may have worse RV dysfunction.
10.Measurement of retinal thickness and volume after onset of primary acute angle-closure glaucoma
Wen, OU ; Zefei, WANG ; Aiwu, FANG ; Qinxiang, ZHENG
Chinese Journal of Experimental Ophthalmology 2014;32(2):154-158
Background Attack of primary acute angle-closure glaucoma (PAACG) often cause damage of retinal function.To measure the structural change after acute angle-closure glaucoma attack is of an important clinical significance.Flourier domain OCT(FD-OCT) is available.Objective This study was to measure and compare the thickness of peripapillary and macular retinal nerve fiber layer (RNFL) and macular volume in PAACG patients and normal subjects.Methods A case-controlled study was designed.Twenty-five eyes after acute angle-closure glaucoma attack and 25 fellow eyes were collected from April,2011 to February,2012 in Affiliated Eye Hospital of Wenzhou Medical College,and 25 eyes of normal subjects with the matched age and gender were enrolled at the same period.The thicknesses of RNFL and macula as well as the volumes of macula were measured by FD-OCT in all the eyes 2 weeks after acute angle-closure glaucoma attack.The outcomes were compared among the attacked eyes,fellow eyes and normal control eyes.Results The average thicknesses of RNFL were (125.72 ± 28.57),(108.36 ±9.31) and (106.10± 10.97)μm in the attacked eyes,fellow eyes and normal control eyes,showing a significant increase in the attacked eyes (all at P < 0.05).The RNFL thickness values in the superior,interior and nasal quadrants at optical disc were significantly higher in the attacked eyes than those of the fellow eyes and normal control eyes (all at P<0.05),but no significant differences were found in temporal and temporal-lower quadrants among the three groups (P=0.081,0.766).The thickness values of macular area were (283.72 ± 18.33),(280.28 ± 16.85) and (289.14±10.60)μm in the attacked eyes,fellow eyes and normal control eyes,with no significant difference among them (Fgroup =2.048,P =0.136),and fellow eyes were significantly reduced in comparison with the normal control group (P<0.05),and those in the attacked eyes was not significantly reduced in comparison with the normal control group (P =0.224).The macular volumes were (5.589±0.355),(5.532±0.325) and (5.720±0.241)mm3in the attacked eyes,fellow eyes and normal eyes,without statistically significant difference among them (Fgup =1.027,P=0.363).The macular thickness values were lower in the outer race than those of the inner race and followed the pattern of nasal >superior> inferior>temporal quadrants.At the temporal,superior,nasal and inferior quadrants of inner race,the temporal quadrant of the outer race,the central area,the macular thickness and volume values were declined in the attacked eyes and fellow eyes compared with the normal control eyes (all at P<0.05).Conclusions The edema of RNFL is more serious than that of macula in the eyes within 2 weeks after acute angleclosure glaucoma attack.The retinas of macular zone are thinner,and the macular volumes are smaller in the attacked eyes and fellow eyes than those in the normal control eyes.