1.Effects of desflurane and propofol on systemic oxygenation in patients undergoing one-lung ventilation during video-assisted thoracoscopic surgery
Cheng LIU ; Chuanhan ZHANG ; Biyun ZHOU
Chinese Journal of Anesthesiology 1994;0(06):-
Objective To compare the effects of desflurane and propofol on systemic hemodynamics and arterial oxygenation undergoing one-lung ventilation (OLV) during video-assisted thoracoscopic surgery (VATS)Methods Twenty patients,ASA physical status Ⅱ or Ⅲ, scheduled for elective VATS undergoing OLV , were prospectively randomized into two groups : desflurane group(group D,n=10) and propofol group (group P,n=10) Anesthesia was induced with intravenous propofol 2mg?kg -1(group P) or thiopental 5 mg?kg -1( group D) combined with intravenous fentanyl 4?g?kg -1 ,vecuronium 01mg?kg -1 and succinylcholine 100mg , and was maintained with infusion of propofol at rate of 2-8 mg? kg -1?h -1 (group P) or inhalation of desflurane 2%-4% (group D) The Carlen double-lumen endobronchial tube was intubated to ventilated mechanically with 100% oxygen MAP and HR were monitored during the entire procedures, and blood gas analysis was made before operation, 30 min following two-lung ventilation, 30 min and 60 min following OLV in both groups,respectively Results PaO 2 were decreased significantly following OLV in both groups(P005)Conclusions Desflurane can be used as safely as propofol with one-lung ventilation during video-assisted thoracoscopic surgery
2.Relationship between the endocervical mycoplasma infection and spontaneous abortion due to early embryonic death
Lingling YE ; Biyun ZHANG ; Wenli CAO
Chinese Journal of Obstetrics and Gynecology 2001;0(02):-
Objective To study the relationship between endocervical mycoplasma infection and the spontaneous abortion due to the early embryonic death and the drug sensitivity to mycoplasma. Methods Endocervical swabs were taken from fifty normal pregnant women (normal group) and fifty-eight women with spontaneous abortion due to embryonic death.The swabs were used for ureaplasma urealyticum (UU) and mycoplasma hominis (MH) Cultivation respectively. The isolation rates of the two groups were comparedf.Results (1)In the embryonic death group, the positive rates of UU, MH and UU mixed with MH were 74.1%(43/58) , 27.6% (16/58) and 20.7%(12/58)separately.In the normal female group, however, the positive rates correspondingly were the UU 48.0% (24/50), the MH 10.0% (5/50) and the UU mixed with MH 4.0% (2/50).There had significant differences of the positive rates between the two groups( P
3.Effect of Minocycline on Hippocampal Neuroapoptosis and Cognitive Dysfunction in Aged Rats
Jiuhong LIU ; Qiang HAN ; Xiaohui CHI ; Tao ZHANG ; Biyun ZHOU
Herald of Medicine 2015;(10):1280-1283
Objective To investigate the effect of minocycline on isoflurane-induced hippocampal neuroapoptosis and cognitive dysfunction in aged rats. Methods Forty-five male SD rats were randomly assigned into 3 groups ( n=15): blank control group ( group C) , 1.5% isoflurane group ( group I) and 50 mg??kg-1 minocycline+1.5% isoflurane group ( group M+I) . Minocycline was injected intraperitoneally 12 h before the start of anesthesia for group M+I.Group I and group M+I were exposed to 1.5% isoflurane for 4 h, while group C were exposed to 30% O2-70% N2.At the end of anesthesia, five rats in each group were randomized to analyse arterial blood gas. The other rats in each group were sent back to their home cage until they were fully awake.Fourteen days after anesthesia, Morris water maze was used to assess the cognitive function, and then hippocampi of rats were dissected for detection of the expression of cleaved caspase3, Bax and Bcl-2. Results No difference was found in arterial gas analysis among the 3 groups (P>0.05).Compared with group C, the rats in the group I spent more time locating the platform on the third and fourth training days and the time percentage that the rats in group I spent in the target quadrant was much less (P<0.05).However, these changes were reversed in group M+I (P<0.05).The isoflurane-induced increased level of Bax and cleaved caspase3 and decline of anti-apoptotic factor Bcl-2 were restored by minocycline pretreatment ( P<0.05) . Conclusion Minocycline could attenuate cognitive dysfunction induced by isofluranein aged rats.The mechanism is associated with inhibition of hippocampal neuroapoptosis which is increased by isoflurane.
4.Effect of Congenital Ptosis on Refractive Power of the Corneal Surface
Xun LI ; Yanfei ZHANG ; Qin LI ; Jianfeng ZHAO ; Biyun CUN
Journal of Kunming Medical University 2016;37(8):84-87
Objective To investigate the effects of congenital ptosis on refractive power of the corneal surface.Methods Forty-five patients (90 eyes) with congenital ptosis in the First Affiliated Hospital of Kunming Medical University were examined from October 2013 to June 2015.Corneal topographic analysis was performed in both the ptosis and the normal eyes.The comparison between the ptotic eye and the normal eye was done according to the topographic results.Results Among 90 eyes,55 were ptotic and 35 were normal.Amblyopia was detected in 21 ptotic eyes (38.2%).No correlation was found between amblyopia and the severity of ptosis (x 2=2.617,P>0.05).Ptotic eye showed an asymmetrical bow tie pattern (23 eyes) and an irregular pattern (32 eyes) on corneal photography and the maximum refractive power occurred at the inferior quadrant of the corneal horizontal axis.Difference value of the average refractive power of the cornea between lower side and upper side in ptotic eyes was higher than that of the normal eyes at 5mm and 7mm diameter areas (P<0.01) except for 3mm diameter area (P> 0.05).Conclusion Congenital ptosis may lead to the change of refractive power of the local corneal surface.Amblyopia has no correlation with the severity of ptosis.
5.CT,MRI and pathological analysis of peripheral primitive neuroectodermal tumors
Ziqian CHEN ; Biyun ZHANG ; Hui XIAO ; Youqiang YE
Chinese Journal of Radiology 2000;0(12):-
Objective To analyze the CT and MRI appearances and to improve the knowledge of peripheral primitive neuroectodermal tumors(pPNETs).Methods CT or MRI were performed in 19 patients of pPNETs,which were confirmed by pathology.Results All the tumors were with unclear margin.Three cases occurred in intracalvarium,7 in the extremities,2 in the chest,4 in the abdomen,and 3 inside the spine.CT appearance of the tumors arising from soft tissue showed large,ill-defined,non-calcified mass and heterogeneous appearance with hypodense cystic areas.The tumors demonstrated heterogeneous contrast enhancement.The pPNETs arising from bone demonstrated extensive lytic lesion with large soft tissue mass,one case with newly-born bone and demonstrated heterogeneous contrast enhancement.The tumors demonstrated homogeneous intensity as muscle on SE T1WI and heterogeneous hyperintense signal on T2WI.Immunohistochemically,tumor cells showed positive for CD99,Syn,GFAP and negative for LCA.Conclusion The pPNETs show no characteristic manifestations on CT and MRI.However,CT and MRI can show the intra-tumor structures and the extent of the tumor very well,which is helpful in differentiating diagnosis,predicting resectability,detecting distant metastases and evaluating the response to treatment.
6.The value of computer aided detection in digital chest radiograph on the diagnosis of pulmonary nodules
Ziqian CHEN ; Biyun ZHANG ; Zhengwen ZHAO ; Guangming LU
Journal of Medical Postgraduates 2003;0(07):-
Objective:To evaluate the computer aided detection system on the diagnosis of pulmonary nodules. Methods: 120 cases of examined patients with solitary lung nodules up to 9-30 mm in diameter were evaluated. All nodules had been verified by means of biopsy. 120 cases of healthy patients were selected as control group on the basis of confirmation on the chest CT. All chest radiograph in the two group were obtained with a digital radiography system. Five experienced chest radiologists and five residents detected the chest radiograph with or without CAD output images. The scales of performance were evaluated with receiver operating characteristic curve(ROC curve). Results: The average area under the curve value increased significantly from 0.762 without to 0.825 with CAD output images(P
7.Control status quo of drinking-water-borne endemic fluorosis in the disease affected areas in Hubei Province in 2015: an analysis of survey results
Biyun ZHANG ; Mingjian LI ; Xin DAI ; Suhua ZHOU
Chinese Journal of Endemiology 2017;36(5):346-349
Objective To investigate the progress and effectiveness of water-improving defluoridation projects comprehensively in control of fluorosis in drinking-water-borne endemic fluorosis areas in Hubei Province,and to provide a scientific basis for making strategies in prevention and control of endemic fluorosis.Methods All villages affected by fluorosis in drinking-water-borne endemic fluorosis areas were selected in Hubei Province,in which the progress and effectiveness of water-improving and defluoridation projects were investigated in 2015.Those villages were chosen to determine fluoride content of drinking water,and to check the prevalence of dental fluorosis of children 8 to 12 years old.Water fluoride content was tested with fluoride ion-selective electrode,and dental fluorosis was diagnosed by the Dean method.Results The water improvement projects were completed in 197 villages in the 30 disease affected counties (cities) with accomplishment rate 100.00% (197/197),geometric mean of water fluorine 0.36 mg/L,qualified rate of water fluorine 100.00% (197/197) and normal operation rate of the water-improvement projects 95.94% (189/197).Totally 14 856 children aged 8-12 were examined their dental fluorosis.The prevalence rate was 1.78% (265/14 856) and the dental fluorosis index was 0.04,which meant epidemic strength was negative.Totally 29 out of the 30 disease affected counties (cities) had met the disease control standards.Conclusion The prevalence of drinking-water-borne endemic fluorosis in Hubei Province has been under control,but management and monitoring of the water improvement projects still should be strengthened.
8.Correlation between serum insulin-like growth factor-1 and lipid metabolic disorder in aged patients with ischemic cerebrovascular diseases
Wei DENG ; Biyun WANG ; Meili ZHANG ; Yan TAN ; Yu YANG
Chinese Journal of Rehabilitation Theory and Practice 2005;11(7):526-528
ObjectiveTo investigate the changes of the serum level of insulin-like growth factor-1 (IGF-1) and lipid as well as their correlation in aged patients with ischemic cerebrovascular diseases(ICVD).MethodsSerum level of IGF-1, Lipoprotein(a) [LP(a)], total cholesterol (TC), triglyceride (TG) and low density lipoprotein cholesterol (LDL-C) were detected in 130 cases of aged ICVD, as well as in 43 cases of healthy aged control.ResultsIGF-1 level in aged ICVD group was remarkably lower than that in control(P<0.05), and the levels of LP(a),TC, TG and LDL-C in aged ICVD group were significantly higher than that in control (P<0.05). The serum IGF-1 level in TIA patients with infarction was mower than those without infarction (P<0.05). In aged ICVD group, the serum IGF-1 level was negatively correlated with LP(a),TC, TG and LDL-C level (P<0.01). ConclusionIGF-1 decreased in the patients of aged ICVD, which shows a close relationship about the disorder of lipid metabolism, and may play a certain role in the course of occurrence and development of aged ICVD.
9.Comparative analysis of nuclear proteomes in mitochondrial DNA-depleted A549 cells and their parental cells
Peng ZHAO ; Zhaohui ZHANG ; Weijian ZHONG ; Xianping YING ; Zhun YUANN ; Biyun YAO ; Juanling FU ; Zongcan ZHOU
Chinese Journal of Pharmacology and Toxicology 2012;26(4):482-488
OBJECTIVE To investigate the nuclear proteomes in mitochondrial DNA (mtDNA)-depleted A549 cells (Rho0 cells) and their parental cells (Rho+ cells),and to learn more about the nuclear responses to mitochondrial dysfunction.METHODS The nuclear proteomes of Rho and Rho + cells were characterized by two dimensional electrophoresis (2-DE) and SELDI-TOF ProteinChip technologies,the differentially expressed protein- spots were identified by MALDI-TOF mass spectrum (MS),the nucleophosmin and P53 expression were detected by Western blotting assay,and the mitochondrial memhrane potential (MMP) was measured by the laser scanning confocal microscope.RESULTS 2-DE results showed 11 protein-spots were down-regulated and 21 protein-spots were up-regulated in Rho0 cell nuclei.SELDI-TOF MS analysis with NP20 ProteinChips revealed 4 protein-peaks decreased in Rho0 cell nuclei.One down-regulated protein-spot was identified as elF-6,and 4 up-regulated proteinspots were identified as nucleophosmin,SFRS1,SFRS3 and hnRNP G,respectively.The increased expression of nucleophosmin in Rho0 cells was verified by Western blotting.Based on the clues from proteomic analysis,P53 expression in Rho0 cells was higher than in Rho + cells,and MMP was consistent in Rho + and Rho0 cells.CONCLUSION mtDNA-depletion induces nuclear proteome alteration.Rho0 cells can be used as a model to study the crosstalk between mitochondrion and nucleus.
10.Effects of early pain intervention provided by an acute pain service team on efficacy of postoperative patient-controlled analgesia
Biyun TANG ; Lifang ZHANG ; Yongman ZHU ; Ming GONG ; Chunhong XU ; Min YAN
Chinese Journal of Anesthesiology 2012;32(6):680-682
ObjectiveTo evaluate the clinical effects of early pain intervention provided by an acute pain service team on the efficacy of postoperative patient-controlled analgesia ( PCA).MethodsOne thousand four hundred and sixty-seven patients receiving postoperative PCA in November and December 2011 were enrolled in this study.Patients were excluded from the study if they were < 12 yr,unconscious or uncoorperative.The patients were divided into control group (group C,n =725) and intervention group (group 1,n =742).Group 1 received preoperative systematic pain education on the significance and conect use of PCA including pharmacology of analgesic (sufentanil 100 μg in normal saline 100 ml) by an acute pain service team made up of anesthesiologists and nurses specializing in pain management.The education was repeated immediately before operation and when the patients were discharged from recovery room.While in grup C the correct use of PCA was explained routinely before operation by anesthesiologists and nurses taking care of the patients.The incidence of incomplete analgesia and adverse reactions and patient' s satisfaction were rated.ResultsThe incidence of incomplete analgesia was significantly lower and the patient's satisfaction higher in group 1 than in control group.There was no significant difference in adverse reactions between the two groups.ConclusionEarly pain intervention provided by an acute pain service team is effective in improving the efficacy of postoperative PCA and patient's satisfaction.