1.Effects of combination of general and epidural anesthesia on hemodynamics
Jian WANG ; Quanyun WANG ; Qi TIAN
Chinese Journal of Anesthesiology 1996;0(08):-
Objective To observe the influences of combined general and epidural anesthesia on hemodynamics.Methods Twenty one patients were randomly divided into two groups, general anesthesia (GA group, n=11) and combined general and epidural anesthesia (GA+EA group, n=10). With Swan Ganz technique, hemodynamic parameters were measured 5min following 0.6 and 1.0 MAC enflurane inhalation in GA group, and 5min following 0.6 MAC enflurane inhalation and 10min after combined epidural lidocaine in GA+EA group.Results Compared with the baselines, in both groups with 0.6 MAC enflurane inhalation, MAP decreased significantly (P0.05); in GA group with 1.0 MAC enflurane inhalation, MAP, HR, SVR, SI and CI decreased significantly (P0.05). As compared with those following 0.6 MAC enflurane inhalation, only in GA+EA group MAP and SVR decreased, and SI rose obviously (P
3.Clinical study on the treatment of old retinal detachment by scleral buckling procedure
Chaowei TIAN ; Qi ZHU ; Yusheng WANG
Chinese Journal of Ocular Fundus Diseases 1996;0(01):-
Objective To observe the therapeutic effect of scleral buckling procedure on old retinal detachment. Methods The clinical data of 42 patients (46 eyes), including 24 males (27 eyes) and 18 females (19 eyes), with old retinal detachment treated by scleral buckling procedure in our department were retrospectively reviewed. The duration of the disease ranged from 1 month to 2 years. All the patients were with rhegmatogenous retinal detachment and combined with mainly predominantly-subretinal proliferative vitreoretinopathy (PVR) (stage C), including stage C1 of PVR in 16 eyes (34.8%), stage C2 in 19 eyes (41.3%), and stage C3 in 11 eyes (23.9%). Scleral buckling was performed on 13 eyes (283%) and cerclage combined buckling on 33 eyes (71.7%). Sterile air was injected into 36 eyes (78.3%) during the operation, and C3F8 was introvitreal injected into 7 eyes (15.2%) after the operation. Results The follow-up duration was from 6 months to 1 year (mean 7.3 months). Retina was completely reattached in 31 eyes (67.4%), and was alleviated obviously in 12 eyes (26.1%). The subretinal fluid increased after the operation with un-reattached retina and vitrectomy was performed in 2 eyes. One eye underwent vitrectomy due to the development of PVR. After the first operation, the curative ratio of retinal detachment was 67.4%, and effective ratio (cure and alleviation) was 93.5%. The visual acuity improved in 28 eyes (60.9%), kept no change in 11 eyes (23.9%), and decreased in 7 eyes (15.2%). Conclusion Reattachment of retina and improvement of visual acuity can be achieved in some degree in some patients with old retinal detachment who undergo simple scleral buckling procedure without vitrectomy.
4.Application of Angong Niuhuang Bolus on prognosis of the diffiuse axonal injury
Shaojin WANG ; Lanping QI ; Xinle TIAN
Chinese Traditional Patent Medicine 1992;0(03):-
AIM: To observe the curative effect of Angong Niuhuang Bolus on diffuse axonal injury(DAI) prognosis. METHODS: 30 cases of DAI treated with Angong Niuhuang Bolus in addition to conventional modern therapy as treatment group,another 30 cases with modern therapy only as control group,the curative effect of Angong Niuhuang Bolus on DAI was observed and analyzed through the comparisons of GCS,clinical effectiveness and death rate. RESULTS: GCS of treatment group was higher than that of the control group(P
5.The Value of Helical CT Multi-phase Contrast Scanning in the Preoperative Evaluation of Hepatic Portal Cholangiocarcinoma
Gang WANG ; Maowen WANG ; Yu ZHANG ; Youying TANG ; Qi TIAN
Journal of Practical Radiology 1996;0(04):-
Objective To study the value of helical multi-phase contrast scanning in the preoperative evaluation of cholangiocarcinoma hilar.Methods Pre-and post-contrast CT scanning of upper abdomen were performed in 26 cases with hepatic portal cholangiocarcinoma.Arterial phase scan of the whole liver began at 30 s after initial injection of contrast medium and the portal venous phase scan started at 70 s.15 of 26 cases underwent additional delayed phase scans began at 3~4 min.Thin thickness(3~5 mm)scanning of hepatic portal was used in each post-contrast phase scanning.The location,size,enhancement patterns of the lesions and the extent of the tumor involvement were observed and surgical resecetability was evaluated.Results All of 26 lesions were detected in helical multi-phase contrast scanning. 16 lesions enhanced on the arterial phase. On the portal venous phase, all lesions were enhanced and marked enhancement was seen in 19 lesions. Prolonged enhancement was seen in 15 lesions on the delayed phase scanning. The accuracy of evaluating surgical respectability was 84.62%. Conclusion Multi-phase contrast scanning combined with thin thickness scanning can demonstrate obviously the location and enhanced patterns of hepatic portal cholangiocarcinoma, the accuracy in evaluating surgical respectability is improved, and it is helpful in choosing the preoperative treatment program and assessing the prognosis.
6.Clinical value of electrocardiogram changes on the diagnosis of hyperkalemia
Feng TIAN ; Taike ZHANG ; Li ZHAO ; Yunling QI ; Yuanyuan WANG
Chinese Journal of Primary Medicine and Pharmacy 2008;15(10):1635-1636
Objective To research clinical significance of electrocardiogram(ECG) measuring in diagnosis of hyperkalemia. Methods ECG changes and serum potassium concentration from 72 cases have been analyzed and contrasted. Results Forty-one cases with hyperkalemia are detected by ECG changes. Coincidence rate is up to 56.9% with serum potassium test. When the serum potassium concentration exceeds 5.5mmol/L, the accuracy of ECG in diagnosis of hyperkalemia was 22.2%. The main features arc peaked T wave with tabernacle shape ;when the serum potassium concentration exceeds 6.7mmol/L, the accuracy of ECG in diagnosis of hyperkalemia was 74.3%. The main features are ST debased,P wave with low amplitude and time limit increased. Some patients appeared sinus node-ventride conduction. One or two appeared malignant ventricular arrbythmia; when the serum potassium concentration exceeds 10.0mmol/L,the accuracy of ECG was 100% ,most patients appeared malignant ventricular. Conclusion The electrocardiogram measurement has the better consistency with serum potassium test, and abnormal electrocardio-gram will be eccurred,when mixed other electrolyte unbalance. Pseudo-hyperkalemia can be distinguished accurately and conveniently by using this method.
7.The safety and application of induced pluripotent stem cells
Shengnan TIAN ; Bo WANG ; Qi LI ; Yuanhua HUANG ; Yanlin MA
Chinese Journal of Tissue Engineering Research 2017;38(5):815-820
BACKGROUND:Induced pluripotent stem cel technology have solved the contradiction between the ethics and immune rejection, and this high-efficient and safe technique is becoming the mainstream of today’s research. OBJECTIVE:To comprehensively review the safety and application of induced pluripotent stem cel s.METHODS:A computer-based online retrieval of PubMed and CNKI was performed to search relevant papers published from January 2006 to April 2016, with the key words of“induced pluripotent stem cel , reprogramming, clinical application, safety, transcription factor, disease mode”in English and Chinese, respectively. RESULTS AND CONCLUSION:In recent years, research on induced pluripotent stem cel s has attracted much attention from the scientific community and the medical community, and this technique has successful y gained induced pluripotent stem cel s and overcome the problems of immunity and ethics. However, it is limited to the theoretical and laboratory research due to the inability to solve the safety, efficiency and re-differentiation mechanism of induced pluripotent stem cel s. Therefore, we are faced with enormous difficulties and chal enges, which involve al aspects of basic research, including how to safely and effectively induce the differentiation of induced pluripotent stem cel s into the desired cel type and how to establish a suitable disease model as wel as a high-throughput drug screening platform.
8.Determination of 9 Residual Organic Solvents in Blonanserin by Headspace Gas Chromatography
Lijuan PEI ; Chen TIAN ; Ranran QI ; Zhuo ZHANG ; Ye WANG
China Pharmacy 2017;28(12):1699-1702
OBJECTIVE:To establish a method for the determination of 9 residual organic solvents in blonanserin as methanol, alcohol,isopropyl alcohol,acetonitrile,dichloromethane,hexane,ethyl acetate,tetrahydrofuran and methylbenzene. METHODS:Headspace gas chromatography was adopted. The determination was performed on DB-624 capillary column using temperature pro-gramming. The inlet temperature was 150 ℃,and flame ionization detector was used with temperature of 250 ℃. High purity nitro-gen was used as carrier gas with flow rate of 2.8 mL/min. The split ratio was 1:1,and headspace sample size was 1 mL. Head-space heating temperature was 90 ℃,and equilibration time was 35 min. RESULTS:The linear ranges of methanol,alcohol,iso-propyl alcohol,acetonitrile,dichloromethane,hexane,ethyl acetate,tetrahydrofuran and methylbenzene were 6-1500 μg/mL(r=0.9998),10-2500 μg/mL(r=0.9999),10-2500 μg/mL(r=0.9998),0.82-205 μg/mL(r=0.9994),1.2-300 μg/mL(r=0.9995), 0.58-145 μg/mL(r=0.9994),10-2500 μg/mL(r=0.9999),1.44-360 μg/mL(r=0.9996),1.78-445 μg/mL(r=0.9995),respec-tively. The limits of quantitation were 17.71,6.02,3.17,7.45,1.53,0.69,0.93,1.01,0.22 μg/mL;the limits of detection were 5.89,1.90,1.05,2.48,0.51,0.23,0.31,0.33,0.07 μg/mL,respectively. RSDs of precision and stability tests were all lower than 3.0%,and isopropanol was found in repeatability test (RSD=2.1%). The average recoveries ranged 96.67%-102.66%(RSD=1.9%,n=9),96.00%-101.83%(RSD=1.9%,n=9),97.17%-101.50%(RSD=1.4%,n=9),96.97%-102.44%(RSD=2.2%,n=9),95.83%-103.33%(RSD=2.5%,n=9),95.83%-100.28%(RSD=1.9%,n=9),98.17%-101.25%(RSD=1.0%,n=9),96.55%-102.30%(RSD=1.9%,n=9),96.30%-102.22%(RSD=1.8%,n=9),respectively. CONCLUSIONS:The method is simple,rapid,accurate and suitable for simultaneous determination of 9 residual organic solvents in blonanserin as methanol,alco-hol,isopropyl alcohol,acetonitrile,dichloromethane,hexane,ethyl acetate,tetrahydrofuran and methylbenzene.
9.New development in the research on FoxO3a and urologic neoplasm
Yuejun TIAN ; Yan TAO ; Qi GUO ; Zhiping WANG ; Mei HONG
Chinese Journal of Clinical Oncology 2015;(15):770-773
The forkhead box O (FoxO) transcription factor family plays an important role in cell functions, including metabo-lism, apoptosis, cellular proliferation, stress reactions, DNA repair, and immune response. As a member of this family, forkhead box O3a (FoxO3a) regulates its target genes by modulating histone modifications, including phosphorylation, acetylation, and methylation. FoxO3a expression is abnormally downregulated in urologic neoplasm. Protein modifications and FoxO3a activity are mainly con-trolled by PI3K/Akt signal pathway and other signaling pathways. FoxO3a is also involved in the initiation, progression, and prognosis of urologic neoplasm. This review focuses on the function of FoxO3a in urologic neoplasm and elucidates the regulatory mechanisms involved. This article will provide novel strategies to clinical diagnosis and drug therapy of urologic neoplasms.
10.Prevalence survey of allergic rhinitis in Beijing primary and middle school students
Yuan WANG ; Chunting CAO ; Ke QI ; Yuanyuan LIU ; Ying TIAN
Chinese Archives of Otolaryngology-Head and Neck Surgery 2015;(9):465-469
[ABSTRACT]OBJECTIVETo investigate the prevalence of allergic rhinitis in Beijing primary and middle school students.METHODSStratified cluster sampling was conducted with the school as a unit. The investigated subjects included the 7 to 15 years old students from the primary and middle school in Beijing Dongcheng District and Changping District. The epidemiological investigation was carried out using the designed allergic rhinitis questionnaire. Allergen skin prick test was performed in students randomly selected from those who participated the questionnaire survey. The results were statistically analyzed.RESULTS1. The self-reported prevalence of allergic rhinitis was 49.68% in Beijing primary and middle school students. 2. Self-reported prevalence increased with age going up. 3. City center self-reported prevalence was higher than that in suburb areas. 4. The confirmed prevalence of allergic rhinitis in Beijing primary and middle school students was 21.09%, in which, the male prevalence rate was 24.83% and the female prevalence rate was 14.11%. 5. The 5.14% of the students with allergic rhinitis were combined with asthma.CONCLUSIONThe self-reported and confirmed prevalence of allergic rhinitis in Beijing primary and middle school students was 49.68% and 21.09% respectively.