1.Changes of circulating ET, A Ⅱ, CGRP after PTCA in the patients associated with acute coronary events
Yuyun ZHENG ; Guoying ZHU ; Yong HUO
Chinese Journal of Interventional Cardiology 1996;0(01):-
Percutaneous transluminal coronary angioplasty (PTCA) was done successfully in 33 patients,6 of them were associated with 8 acute coronary events. Radioimmunoassay was used for the determination of plasmaET,AII and CGRP levels. The samples were drawn successively from femoral artery just before PTCA and 0min, 15min,1h,3h,24h after the final balloon inflation. The results showed that the levels of plasma AII were higher in the complication group than those of noncomplication group before PTCA and 0min, 24h after PTCA. The differences in plasma ET levels before and after PTCA between the complication group and the non-complication group were not significant. The level of plasma CGRP was decreased at 15min and returned to basal level at 1h after PTCA in the complication group.In the patients without complication,there were no significant differences in their plasma CGRP levels before and after PTCA. All + ET/CGRP in the complication group raised more rapidly,recovered later and the peak appeared earlier than that of non-complication group. For a better understanding pathophysiologic meaning of the above changes,further studies are needed.
2.THE INFLUENCE OF CIMETIDINE ON THE PHARMACOKINETICS OF FTORAFUR IN RATS
Yunsheng GAO ; Yaoqin ZHENG ; Yuyun ZHU
Chinese Pharmacological Bulletin 1986;0(06):-
The influence of cimetidine on the pharmacokinetics of ftorafur ( FT-207 ) in 9 rats after intragastric administration were investigated with cross-over design. The concentration of ftorafur in serum was determined by reversed-phase HPLC. Its curve of concentration vs time was fit to one compartment opened model. The serum concentrations and areas under the curve ( AUC ) vs time were increased when cimetidine orally administered daily for 5d or single dose. The peak of serum and AUC of ftorafur were increased by 21 .0%(P
3.Correction and Rank Sun Test for Standard of Bismuth Subcarbonate Content in Quality Control of Weishusan
Yihui ZHENG ; Yuyun ZHANG ; Zeqing ZHOU ; Zongmao ZHENG
China Pharmacy 1991;0(06):-
OBJECTIVE:To correct the standard of bismuth content in Weishusan.METHODS:The contents of effective bismuth in Weishusan and other three reference substances were detected by compleximetry.After adjusting the dosage of Weishusan,clinical rank sum test was carried out.RESULTS:The content of bismuth in original formula of Weishusan was rather high,therefore the inventory of bismuth subcarbonate in preparation technic of Weishusan should be reduced to7.0kg.CONCLUSION:The quality standard should be reformulated as bismuth subcarbonate0.1g(?10%)in per gram of Weishusan.
4.STUDIES ON THE PHARMACDKINETICS AND ABSOLUTE BIO- AVAILABILITY OF 1-HEXYLCARBAMOYL-5-FLUOROURACIL TABLET IN DOGS
Yunsheng GAO ; Yuyun ZHU ; Junqing QU ; Yaoqin ZHENG
Chinese Pharmacological Bulletin 1987;0(01):-
The pharmacokinetics and absolute bioavailability of 1-hexyl-carbamoyl-5-fluorouracil ( HCFU ) (10 mg/kg ) after oral and intravenous administration were studied in 5 dogs with cross-over design. The concentration of HCFU in serum was determined by reversed-phase high performanee liquid chromatography. After intravenous administration, the curve of serum HCFU concentration vs time was fit to a two-compartment opened model and the phar-macokinetic parameters were. T1/2?=1 .67 min, T1/2? = 34.55 min, Vc= 0.2525L/kg,C1 = 0.3205 L/kg?h~-1 & AUCiv =1.9375 mmol/min?L~-1. When HCFU tablets were tiken orally, the curve of concentration vs time was fit to an one-compartment opened model and its pharmacokinetie parameters were: T1/2ke=12.13 min, T1/2ke=38.51 min, Tmax=23.46 min,Cmax=8.140?10~-3mmol/L & AUCpo=1.5856 mmol/min?L~-1 . The absolute bioavailability calculated from AUCpo and AUCiv was 0.8214.
5.Analysis of paper publishing conditions by postgraduate background staff in an upper first-class hospital in Guangxi Province during 2010-2014
Lianfeng LI ; Rongzhen MO ; Xiangdong WANG ; Yuyun XIA ; Gui BAI ; Zheng LI ; Gang MA
Chinese Journal of Medical Science Research Management 2017;30(2):151-154
Objective Based on the analysis of papers published by postgraduate background staff from an upper first-class hospital in Guangxi during 2010-2014,claimed that the medical scientific research administrators should pay more attention and give more support to such staff.Methods Literature metrology method was used to describe and analyze the hospital staff,postgraduate staff resource composition and published papers from the annual growth rate,per capita,constituent ratio,quantitative analysis of core authors group.Results In the latest five years,the hospital postgraduate staff had published 169 papers,143 papers were published in statistical source journals or SCI;the amount of paper publication increased annually,the average of per author published paper was 0.39;but the quality still has a lot space for improvement.Conclusions Although the amount of paper publication by postgraduate background staff increased annually,the average paper number published per author showed the features of great fluctuation,the quality of those papers should be improved.The core authors were formed,but the quantity of this author group needs to be increased,as well as the scientific quality of those core authors.
6.Perioperative effect comparison of simultaneous fixation and staging fixation in polytrauma patients combined with spine injury and long bone fracture
Qianli MA ; Jiongjiong GUO ; Minrui WU ; Hong ZHENG ; Yuyun ZHENG ; Hui LIU
Chinese Journal of Trauma 2018;34(12):1120-1126
Objective To investigate the perioperative effects of simultaneous fixation and staging fixation in polytrauma patients combined with spine injury and long bone fracture.Methods A retrospective case control study was conducted to analyze the clinical data of 41 severe polytrauma patients with unstable spine combined with long bone fracture admitted from June 2009 to June 2015.There were 30 males and 11 females,aged 21-66 years [(41.2 ± 12.2)years].The injured spinal segments included cervical vertebrae in 11 patients,thoracic vertebrae in 15,lumbar vertebrae in 23,sacrococcygeal vertebrae in two,as well as injuries at two or more different segments in 10 patients.The long bone fracture segments included humerus in six patients,radius and ulna in 14,femur in 15,tibia and fibula in 14,as well as injuries at two or more different segments in eight patients.The injury severity score (ISS) were all ≥ 15 points.According to the timing of operation,the patients were divided into the simultaneous operation group (20 patients) and the staging operation group (21 patients).In the simultaneous operation group,there were 16 males and four females,aged (43.1 ± 12.6)years,and internal or external fixations of spine and long bone were performed at stage Ⅰ.In the staging operation group,there were 14 males and seven females,aged (40.1 ± 11.9)years.Spine fixation surgery was performed first,and then surgery for long bone fracture was performed after the conditions were stabilized.Spinal surgery methods included anterior subtotal vertebral resection,bone graft plate internal fixation,posterior laminectomy and decompression,and lateral mass screw or pedicle screw internal fixation.Plate and interlocking nail were used for internal fixation of long bone fracture,and single arm bracket for external fixation.The preoperative hospitalization time,operation time,operative blood loss (intraoperative hemorrhage and postoperative drainage),postoperative complications,hospitalization time and Frankel score of spinal cord injury before and after operation were compared between the two groups.Results The preoperative hospital stay was (9.3 ± 6.7) days in the simultaneous operation group and (5.6 ± 5.0) days in the staging operation group (P > 0.05).The simultaneous operation group had significantly longer operation time [(4.9 ± 2.0) hours] than the staging operation group [(3.2 ± 1.2) hours] (P < 0.01),more operative blood loss [(1 322.6 ± 507.1) ml] than the staging operation group [(1 036.7 ± 233.9) ml] (P<0.05),and shorter hospitalization stay [(22.8 ± 12.6)days] than the staging operation group [(33.0 ± 15.4) days] (P < 0.05).The complication incidence of the simultaneous operation group [45% (9/20)] was significantly lower than that of the staging operation group [86% (18/21)] (P < 0.01).No significant difference was found in Frankel score between the simultaneous operation group [(3.3 ±1.7)points] and the staging operation group [(3.1 ± 1.5)points] (P >0.05).Conclusion For polytrauma patients combined with spine injury and long bone fracture,simultaneous operation can reduce hospitalization time and complication incidence compared with staging operation.
7.Modified bony landmark measurement to deal with leg length discrepancy during total hip arthroplasty
Qianli MA ; Mingrui WU ; Yuyun ZHENG ; Hui LIU ; Qiang CHEN
Chinese Journal of Orthopaedic Trauma 2018;20(12):1038-1043
Objective To evaluate the clinical application of modified bony landmark measurement ( MBLM ) to deal with leg length discrepancy ( LLD ) during total hip arthroplasty ( THA ). Methods We retrospectively analyzed the 36 patients in whom MBLM was used to deal with LLD during THA from January 2014 to May 2015 at Department of Orthopaedics, The Second Hospital of Fuzhou. They were 17 men and 19 women, aged from 42 to 78 years ( average, 68.7 ± 10.1 years ). They were divided into 3 groups according to their pre-operative LLD value ( d ) : 16 cases in group A with d≤10 mm, 11 cases in group B with 10 mm <d≤20 mm and 9 cases in group C with d > 20 mm. After the sizes of prosthetic cup and femoral component and the location of implant were determined using preoperative X-ray, a special formula was used to calculate the prosthetic length of femoral head neck and the osteotomy area at the femoral neck. MBLM was used to measure the leg lengths before hip joint dislocation and after placement of the hip implant. The neck length and depth of the femoral component was adjusted according to the measurements. Post-operative X-ray was used to measure the LLD ( d'). The value of MBLM in judgment of LLD during THA was assessed by comparison of d and d' and analysis of distribution of d' . Results The postoperative d' ( 6.0 ± 3.0 mm) was signifi-cantly shorter than the preoperative d ( 11.0 ± 5.0 mm) ( t=5.145, P <0.001 ). There were 30 cases with d' ≤ 10 mm, 6 cases with 10 mm <d'≤ 20 mm and 0 case with d' > 20 mm. The cases with d'≤ 10 mm were significantly more than those with d ≤ 10 mm and the cases with d' > 20 mm significantly fewer than those with d > 20 mm ( χ2=15.500, P=0.000 ) . Conclusion MBLM used during THA is a reliable method to judge the leg lengths so that LLD can be effectively reduced after THA.