1.A novel innate antiviral factor-tetherin.
Yi-Shu YANG ; Xiao-Li WANG ; Ze-Ling LI ; Yi ZENG
Chinese Journal of Virology 2010;26(1):71-75
Animals
;
Antigens, CD
;
chemistry
;
genetics
;
metabolism
;
Antiviral Agents
;
chemistry
;
metabolism
;
GPI-Linked Proteins
;
HIV Infections
;
metabolism
;
virology
;
HIV-1
;
genetics
;
physiology
;
Human Immunodeficiency Virus Proteins
;
genetics
;
metabolism
;
Humans
;
Membrane Glycoproteins
;
chemistry
;
genetics
;
metabolism
;
Protein Binding
;
Viral Regulatory and Accessory Proteins
;
genetics
;
metabolism
;
Virus Shedding
2.Correlation of the features of metabolic syndrome with type 2 diabetes mellitus among the elderly
Ping ZENG ; Yi ZHANG ; Shukui LI ; Xuefeng ZHU ; Hongyun YANG ; Shu WANG ; Zhifu TONG ; Tiemei ZHANG
Chinese Journal of Tissue Engineering Research 2006;10(12):164-166
BACKGROUND: The cluster of multiple metabolic disorders, namely raised blood pressure, overweight or obesity, raised triglyceride level, reduced high density lipoprotein cholesterol (HDL-C) level were the predictor of type 2 diabetes mellitus (DM). However, similar data especially the old people's data is relatively rare in China.OBJECTIVE: To analyze the relationship between the components of metabolic syndrome (MetS), their clusters and the risk of diabetes among Chinese old population.DESIGN: Cross-sectional study.SETTING :Beijing Institute of Geriatrics, Beijing Hospital, Ministry of Public Health.PARTICIPANTS: The study was carried out from February 2001 until November 2001.4 499 volunteers aged 60 and over were recruited from the academic institutes in Beijing Xicheng, Haidian and Shijingshan districts through cluster sampling methods. They were selected after excluding those who did not have integral data.METHODS: Diabetes was considered when fasting glucose was ≥7.0 mmol/L and was treated for or diagnosed as DM. Chi-square tests were performed to compare the categorical data. Age and sex adjustment were taken in the comparison of the levels of blood pressure, waist circumference (WC), The body mass index (BMI), and lab variables, Multifactor stepwise (backward)Logistic regression analyses were used to select the factors which would have association with the risk of DM. When analyzing the relationship between number of clustering of the traits of MetS and DM, the group without any metabolic abnormalities was set as control group. The dummy variables were set for 1,2,3,4 clusters of metabolic abnormalities. The Logistic regression model was used again to test the relationship and adjusted by age and the family history of DM.MAIN OUTCOME MEASURES: The blood glucose, waist, BMI, blood pressure, triglyceride (TG), HDL-C, and family history of diabetes of subjects.RESULTS: 4 444 people in the mean age of 65±5 were retrieved. 556cases of DM were found in this survey. Age, family history of diabetes,systolic blood pressure, waist and TG were independently associated with the risk of DM, with OR (95%CI) being 1.02 (1.00-1.04), 3.48(2.76-4.39), 1.02 (1.01-1.02), 1.03 (1.00-1.03), 1.13 (1.05-1.21), respectively. When TG was not in the model, HDL-C was also inversely associated with DM (OR=0.67, 95%CI 0.49-0.91). The risk of DM increased with clustering of abdominal obesity, raised blood pressure, raised TG, and reduced HDL-C level in individuals.CONCLUSION: In addition to age and genetic factors, metabolic factors, especially their clusters are closely related to the risk of diabetes. Therefore, the features of MetS are important indicators for the risk of DM in aged people.
3.The cohort study of components of metabolic syndrome related with diabetes mellitus in elderly patients
Ping ZENG ; Xuefeng ZHU ; Yi ZHANG ; Yanli PAN ; Shu WANG ; Tiemei ZHANG
Chinese Journal of Geriatrics 2010;29(1):9-12
Objective To analyze the correlation of metabolic syndrome (MS) and its components with a future development of diabetes mellitus (DM) in elderly patients. Methods In 2007, the cohort study was carried out among the 2001 baseline population. The criteria which was proposed by international diabetes federation in 2005 was referred to diagnose MS. Results MS predicted the future development of DM (RR = 4. 70, 95% CI:3.23~6.85). Among MS components, fasting glucose exhibited the highest association with DM. The univariate analysis showed that while fasting glucose was more than 5. 6 mmol/L, the RR(95% CD was 9. 68(6. 59~ 14.23). And multiple factors analysis showed that while fasting glucose was 5.60 mmol/L~6. 09 mmol/L, the RR(95% CD was 5. 49(3. 38~8. 92). While glucose level was more than 6. 1 but less than 7.0 mmol/L, the RR(95% CI) increased to 14.44(9.29~22.44). However, along with the increasing of cluster number of MS components from 1,2,3,4 to 5, the corresponding RR increased from 2. 92, 5. 67, 12. 28, 19. 52 to 37. 83. Conclusions MS increases the risk of DM. Among MS components, fasting glucose level is the strongest risk indicator of DM.
4.The antihypertensive effect of adrenomedullin 2 and related mechanism.
Jing XIE ; Yi CUI ; Bin GENG ; Chao-Shu TANG ; Qiang ZENG
Chinese Journal of Applied Physiology 2014;30(3):193-197
OBJECTIVETo observe the vasodilating effect of adrenomedullin 2 (ADM2) by antagonizing angiotensin 1 (Ang II), and to explore its mechanism.
METHODSEighteen male, 180-200 g SD rats were randomly divided into 3 groups (n = 6): control group, Ang II (150 ng/(kg x min)) group and Ang II (150 ng/(kg x min)) + ADM2(500 ng/(kg x h)) group. Mini-osmotic pumps filled with peptide were implanted in the back of rats subcutaneously. After two weeks, the blood pressure was measured by the way of carotid intubation. The plasma was collected for the detection of nitric oxide (NO) content and the activity of endothelial nitric oxide synthase (eNOS). The in situ oxidation of fluorescent dye dihydroethidium (DHE) was used for detecting superoxide in rat arteries. The rat isolated arterial rings were made for studying the vasodilating effect of ADM2. Human umbilical vein endothelial cell line EA. hy 926 cells were cultured and their intracellular reactive oxygen species (ROS) were evaluated by probe DCFH-DA.
RESULTSADM2 dramatically decreased the blood pressure in angiotensin II-induced hypertension rat model, enhanced plasma NO content and the activity of eNOS and reduced superoxide formation in vessel walls. ADM2 also induced relaxation of the vascular rings preconstricted by Ang II in a concentration-dependent and endothelium-dependent manner. In cultured vascular endothelium, ADM2 ameliorated the ROS generation induced by Ang II.
CONCLUSIONAdrenomedullin 2 relaxed blood vessels by antagonizing angiotensin II-induced oxidative stress and improving the vascular endothelial function.
Adrenomedullin ; pharmacology ; Angiotensin II ; pharmacology ; Animals ; Antihypertensive Agents ; pharmacology ; Blood Pressure ; drug effects ; Drug Antagonism ; Endothelium, Vascular ; drug effects ; Human Umbilical Vein Endothelial Cells ; cytology ; Humans ; Male ; Nitric Oxide ; blood ; Nitric Oxide Synthase Type III ; blood ; Oxidative Stress ; Rats ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; metabolism ; Vasodilation ; drug effects
6.Blood vessels and nerves surrounding the seminal vesicles: A clinical anatomic study.
Xiu-ping ZHANG ; Zhao-yi LIN ; Shu-xiong ZENG ; Xiao-dan GUO ; Xiang-qun YANG
National Journal of Andrology 2015;21(10):877-880
OBJECTIVETo investigate the precise locations of the blood vessels and nerves surrounding the seminal vesicles (SV) in men and provide some anatomical evidence for SV-related minimally invasive surgery.
METHODSWe observed the courses and distribution of the blood vessels and nerves surrounding SVs and obtained the data for positioning the SV neuroplexes in 20 male pelvises.
RESULTSOne branch of the neuroplexes was distributed to the SVs bilaterally with the neurovascular bundles, (2.85 ± 0.18) cm from the median sulcus of the prostate (MSP), while another branch ran through the Denonvillier fascia behind the SV, (0.81 ± 0.06) cm from the MSP. The arterial SVs (ASV) originated from the inferior vesical artery and fell into 4 types, 55% going directly to the SVs as one branch, 15% running between the SV and the ampulla of the deferent duct as another branch, 25% downward as 2 branches to the SV and between the SV and the ampulla of the deferent duct respectively, and 5% as the other ASVs. The shortest distance from the ASV through the prostatic neuroplexus to the posterior SV was (1.08 ± 0.09) cm.
CONCLUSIONIn SV resection, neuroplexus injury can be reduced with a bilateral distance of < 2.85 cm and a posterior distance of < 0.81 cm from the MSP, and so can bleeding by vascular ligation between the SV and the ampulla of the deferent duct.
Biopsy ; Humans ; Male ; Prostate ; blood supply ; innervation ; Seminal Vesicles ; blood supply ; innervation ; Vas Deferens ; blood supply ; innervation
7.The Changes of T Cells Subpopulations and Immunoglobulin and Their Relationship in Children Patients with Simple Nephrotic Syndrome.
qiu-ye, ZHANG ; zeng-yi, DONG ; mei-yu, YANG ; shu-lan, DONG ; xiu-ting, YANG
Journal of Applied Clinical Pediatrics 1992;0(06):-
Objective To search for the changes of T cells subpopulations and immunoglobulin and their relation-ship in children patients with simple nephrotic syndrome. Design Case-control research. Patients aud Participants 39 patients with simple nephrotic syndrome were divided into two groups:the incipient group and relapse group (6 cases were determined at the incipient and relapse time) .Thereare 28 patients in incipient group, 19 males and 9 females, at the age of 2 to 10 years old. There are20 patients in relapse group, 12 males and 8 females, at the age of 3 to 13 years old. There are 35health children in control group, 21 males and 14 females, 2~13 years old. Interventions T cells subpopulations were determined by indirect immunofluorescence of OKT linesmonoclonal antibodies. The serum IgG was determined by routine simple agar immunodiffusion tests. Results and Conclusions The CD_3~+ and CD_4~+ cells are of no change in the children patients withsimple nephrotic syndrome, and the CD_8~+ and CD_(10)~+ cells are obviously increased, the Values of CD_4~+/CD_8~+ are obviously lower than those in the control qroup, there are no difference between the incipientand relapse groups. The levels of serum IgG were decreased in the 85.3% children patients, IgM were inc-reased in 29.4% of that. The values of CD_4~+/CD_8~+ have positive correlation and negative correlationwith the levels of serum IgG and IgM respectively.
8.Hand-held echocardiography used by intensivist can improve the accuracy and efficiency of diagnosis during emergency consultation in general ward: a cohort study
Wanhong YIN ; Xueying ZENG ; Bo WANG ; Aiya SHU ; Yan KANG ; Yi LI
Chinese Journal of Emergency Medicine 2017;26(4):415-419
Objective To investigate the accuracy and efficiency of hand-held echocardiography (VSCAN) used by intensivist for the diagnosis and treatment decisions in emergency consultation for patients getting worse at risk of life-threatening setting in non-ICU ward.Methods A prospective study in acutely deteriorated patients needed the intensivist for emergency consultation in general wards was carried out.The consultation process was executed as follows:(1) The intensivist established an initial diagnosis based on medical history,physical examination and laboratory findings,and assessed the hemodynamics and the cause of acute respiratory failure and cardiac arrest according the documented information.The data recorded as control group (Pre-VSCAN) for comparison with the later available data in subsequent analysis.(2) Problem-based ultrasound examination was performed with VSCAN.For patients suffered cardiac arrest,the FEEL protocol was used to find the potential cause of cardiac arrest such as pericardial tamponade and massive pulmonary embolism screened.For the other patients,a simplified eFATE or BLUE-plus protocols were used based on clinical requirement.With the findings of ultrasound examination the intensivist established an final diagnosis and identified the hemodynamics and the lung pathologies.The consultation advice was then provided to the attending doctors of the patient.The intensivist kept the records of echo results,final diagnosis and consultation advice as data of study group data (Post-VSCAN).The response of the treatment and outcome were followed up.Two attending ICU doctors analyzed these data and judged the correctness of Pre-VSCAN and Post-VSCAN based on the response to treatment and the outcome.Results Ninety patients were finally included in statistical analysis.Sixteen (17.8%) cases,40 (44.4%) cases,29 (32.2%) cases and 5 (5.6%) were consulted for acute circulation dysfunction,acute respiratory failure,both reasons and cardiac arrest,respectively.Compared to pre-VSCAN,VSCAN verification can significantly improve the accuracy of the diagnosis (81.1% vs.58.9%,P =0.001),assessment of hemodynamics (78.3% vs.52.2%,P =0.009) and can find more accurate judgment of acute respiratory failure (71.0% vs.43.5%,P =0.001).Conclusion The hand-held echocardiography used by intensivist is valuable for the diagnosis and the assessment of cardiopulmonary status in case of request for emergency consultation in general wards.
9.Pharmacokinetics of dauricine in dogs
Shu-Juan CHEN ; Bin ZHANG ; Yi-Mei YANG ; Zong-Shun DAI ; Fan-Dian ZENG ;
Chinese Journal of Clinical Pharmacology and Therapeutics 2000;0(03):-
K21. The mean t1/2(?) was (2.7?0.4) h, Vd was about 11.18 L?kg-1.The C-T profile conformed to two compartment open model. The plasma Dau concentration-time curves showed a double-peak phenomenon in all dosages of all dogswhen dauricine was given by intragastric was.The tpeak(1) was (0.8?0.6) ~(1.2?0.5) h,tpeak(2) was (5.2?3.2) ~(6.5?1.9)h,Cmax(2) 0.05) and the AUC was increased in proportion.The drug is eliminated non-linearly when the dosage is above 50 mg?kg-1, the parameters t1/2(el),CL, AUC/X0 shows great difference (P
10.Pharmacokinetics and relative bioavailability of domestic ibudilast sustained release capsules in healthy volunteers
Yi-Mei YANG ; Shu-Juan CHEN ; Shi-Fenzhang GU ; Dai BIN ; ZONG-SHUN ; Fan-Dian ZENG ;
Chinese Journal of Clinical Pharmacology and Therapeutics 1999;0(04):-
Aim The relative bioavailability of domestic ibudilast sustained release capsules in healthy volunteers was observed.Methods A single oral dose of 20 mg of imported and domestic ibudilast sustained release capsules and 10 mg of ibudilast raw material was separately given to 12 healthy volunteers in a randomized crossover study. Ibudilast concentration in plasma was determined by HPLC method.Results The Cmax were (54.9?9.7),(60.7?9.1) and (62.2?11.5) ?g?L-1; the tmax were (3.8?0.8),(3.9?0.8) and (1.8?0.3) h;the t1/2(ke) were (1.5?1.4),(12.1?1.0) and (3.5?0.5) h,and the AUC(0~t) were (618.1?57.7),(588.1?66.6) and (233.0?46.4) ?g?h?L-1 in imported capsule group, domestic capsule group and raw material group respectively. The relative bioavailability of domestic sustained release capsules of ibudilast is (95.6?11.0)%. Conclusion The results of statistical analysis demonstrate that the imported and domestic sustained capsules have significant character of significantly sustained release and are bioequivalent.