2.Updates of heterotopic auxiliary liver transplantation with portal vein arterialization
Jun LI ; Jianjun REN ; Junjing ZHANG ; Jianliang QIAO ; Xingkai MENG
Chinese Journal of Digestive Surgery 2015;14(9):777-780
In recent years,liver transplantation donor shortage as one of world medical problems is paid more attention by domestic and overseas scholars.In view of that,heterotopic auxiliary liver transplantation emerges which transplants the whole or some parts of a donor liver outside the original liver position on the condition that some parts or the whole of the original liver were retained.As for the liver transplantation with poor conditions on portal vein,reconstruction of portal vein has become an aporia.Based on this,some scholars put forward the theory——arterialization of portal vein(PVA),namely a method to increase arterial blood supply or replace portal vein blood perfusion of liver by establishing some pathes among artery and portal vein or its branches.The research background and current situation of heterotopic auxiliary liver transplantation with portal vein arterialization,the transplanting position of donor liver,vessel reconstruction,dynamics mechanism after reconstruction and liver regene-ration are summarized in this review.
3.Influence of lower limb movements on setup errors in radiotherapy for rectal cancer using kilovoltage cone-beam CT (KV-CBCT)
Yiran MENG ; Qing XU ; Zhen ZHANG ; Min GONG ; Jun REN
Chinese Journal of Radiation Oncology 2016;25(9):955-958
Objective To investigate the influence of fixation of both lower limbs with negative pressure vacuum cushion and fixation of both ankles with self-made foam mat on setup errors in radiotherapy for rectal cancer.Methods A total of 12 patients with rectal cancer were enrolled in 2014 and randomly divided into group A (using negative pressure vacuum cushion) and group B (using self-made foam mat).An offline registration analysis was performed for the images of 108 times (A,B group of 54 times) of kilovoltage cone-beam CT (CBCT) before and after treatment.Grey scale translation error registration was used,and the results of registration were analyzed.The setup errors in x-axis (left-right direction),y-axis (cranial-caudal direction),and z-axis (anterior-posterior direction) were compared between the two groups.Results There was no significant difference in the absolute setup error in the y-axis between the two groups (2.13±0.64 mm vs.2.61±1.17 mm,P=0.399),while group A showed significantly lower absolute setup errors in the x-axis and z-axis than group B (x-axis:1.51±0.28 mm vs.2.70±1.05 mm,P=0.039;with an error rate of 7.41% vs.42.59%;z-axis:1.10±0.29 mm vs.2.37±0.71 mm,P=0.002;with an error rate of 1.85% vs.35.19%).Conclusions In the radiotherapy positioning for rectal cancer,fixation of both lower limbs with negative pressure vacuum cushion effectively avoids the translation and rotation of both lower limbs,reduces absolute setup errors,and has higher accuracy than fixation of both ankles with self-made foam mat.
4.Comparison of video-assisted thoracoscopic surgery and traditional thoracotomy for treatment of multiple rib fractures
Mingming REN ; Fanyi KONG ; Bo YANG ; Jun YUAN ; Qingjun MENG ; Wenyan ZHOU
Chinese Journal of Trauma 2014;30(6):512-515
Objective To compare the therapeutic effect of video-assisted thoracoscopic surgery and traditional thoracotomy in fixation of traumatic multiple rib fractures.Methods Clinical data of 56 patients with traumatic multiple rib fractures treated surgically between July 2005 and September 2012 were analyzed retrospectively.Based on the treatments,the patients were assigned to video-assisted thoracoscopy group (thoracoscopy group,n =27) and traditional thoracotomy group (thoracotomy group,n =29).A comparison was done on the variables including operation time,intraoperative blood loss,ventilator support rate,duration of mechanical ventilation,length of ICU stay,incidence of lung infections,visual analogue scale (VAS) at day 3 postinjury and mortality between the two groups.Results Operation time [(128.9 ± 21.1) min vs (140.7 ± 24.2) min],ventilator support rate (70% vs 76%) and mortality (4% vs 7%) in thoracoscopy group revealed no statistical differences compared with thoracotomy group (P > 0.05),but intraoperative blood loss [(321.1 ± 30.1)ml vs (438.1 ± 43.2)ml],duration of mechanical ventilation [(4.3 ± 2.1) d vs (7.2 ± 1.6) d],length of ICU stay [(5.9 ± 21.1) d vs (8.5 ± 1.7) d],incidence of lung infection (33% vs 90%),and VAS [(7.0 ± 1.4) points vs (8.3 ± 0.9) points] were significantly reduced in thoracoscopy group than in thoracotomy group (all P < 0.01).Conclusion Video-assisted thoracoscopic surgery is characterized by fewer intraoperative bleeding,shorter duration of mechanical ventilation and ICU stay,and lower lung infection rate during treatment of traumatic multiple rib fractures compared to traditional thoracotomy.
5.Effect of low T_3 syndrome on outcome of acute myocardial infarction
qi, SHAO ; ying, REN ; jun-min, QUAN ; dong-mei, DU ; cui-chun, ZHAO ; meng, WEI
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(12):-
Objective To investigate the prevalence of low T3 syndrome in patients with acute myocardial infarction(AMI) and explore the effect of low T3 syndrome on outcome of AMI.MethodsThree hundred and thirty-eight patients with AMI admitted to cardiac care unit(CCU) underwent examinations of thyroid function and cardial ultrasound,and were further categorized according to thyroid hormone profile.The records of noninvasive bi-level positive airway pressure(BiPAP)ventilation utilization,length of hospital stay,mortality during hospitalization were evaluated,and the related factors were analysed.ResultsOne hundred and thirty-nine of the 338 patients(41.12%) with AMI complicated with low T3 syndrome.Free triiodothyronine(FT3) was the independent influential factor for length of hospital stay.Low FT3 was significantly correlated with noninvasive BiPAP ventilation utilization and mortality during hospitalization.The average time of follow-up was(21.4?8.1) months.It was revealed by multivariate Cox regression analysis that FT3 was the chief predictor for cumulative death(risk ratio,4.25;95% confidential interval,2.30-7.87),followed by age and left ventricular ejection fraction.ConclusionThe recognition of AMI complicated with low T3 syndrome plays an important role in predicting the disease severity and outcome.
6.Synchro-determination of borneol and tetramethyl pyrazine in plasma by GC-FID for volunteers administrated with Suxiao Jiuxin Wan
Jun GUO ; Xi HUANG ; Lili WANG ; Hua MENG ; Li ZHANG ; Ping REN ;
Chinese Traditional and Herbal Drugs 1994;0(08):-
Object To develop a method for pharmacokinetics detection of chemical component in healthy volunteers' plasma administrated with Suxiao Jiuxin Wan, to provide the clinical experimental evidences for therapeutic drug monitoring (TDM) and the hypothesis of pharmacokinetics of traditional Chinese syndrome and recipe. Methods A GC FID method was established for rapid determination of borneol, tetramethyl pyrazine (TMP) content in healthy volunteers' plasma. After obtaining the blood sample at different time, the plasma concentration of borneol, TMP was detected, respectively. The data were processed with the software 3P97 to calculate the pharmacokinetics parameters. Results A good linear relationship of borneol, TMP existed in the plasma of healthy persons in the range of 20-420 ng/mL. Whole blood concentration time course of borneol and TMP in the group administrated with Suxiao Jiuxin Wan was fitted to be a one compartment model. Borneol and TMP in healthy persons were absorbed, distributed and excreted rapidly. Conclusion The GC FID method is sensitive, reliable and rapid, it can be used in pharmacokinetics study of borneol and TMP in vivo.
7.Application of pedical screw visualization technique in screw placement of lumbar vertebrae fracture
Hailong YU ; Jun LIU ; Yu CHEN ; Hongwei WANG ; Qi WANG ; Junxiong MA ; Weijian REN ; Lingzhi MENG ; Liangbi XIANG
Chinese Journal of Tissue Engineering Research 2014;(4):547-552
BACKGROUND:Three-dimensional visualization technique has been widely used in clinical treatment. Preoperative visualization technique al ows safe demonstration on the complex spine fracture models, and also prepare screw placement scheme according to three-dimensional model of patients.
OBJECTIVE:To discuss the clinical result of treating short-segment lumbar vertebrae fracture with pedicle screw visualization.
METHODS:A total of 32 patients with lumbar vertebrae fracture were treated with 182 pedicle screws. Before the screw implantation, the structure of bilateral pedicle was observed using Mimics software and the implantation parameters were measured. The operation methods and related complications were told to the patients through the reconstructed three-dimensional images. The satisfaction of the patients, operation time, and the position of pedicle screws by postoperative CT scan were assessed. The percentages of anterior vertebral height and Cobb’s angle were measured before operation, 2 weeks after operation and 8 months after operation.
RESULTS AND CONCLUSION:The excellent satisfaction rate of the patients was 100%, the mean operation time was 185 minutes, and 173 pedicle screws (95.1%) were total y inserted within the pedicle. Al patients were fol owed up for 7-22 months. The results showed that the fracture healed wel . The percent of anterior vertebral height and Cobb’s angle at 2 weeks after operation were significantly decreased compared with them before operation (P<0.05). There were no significant difference about the percent of anterior vertebral height and Cobb’s angle between 2 weeks and 8 months fol ow-up (P>0.05). Single-segment lumbar vertebrae fracture was wel treated by the pedicle screw visualization technique. This method assists to make up preoperation plan, increase the rate of patients’ satisfaction, shorten operation time, and increase the accuracy of pedicle screw insertion.
8.Comparative study of dissolved matter of glycyrrhizic acid before and after supermicro-pulverization of Radix Glycyrrhizae.
Zhi-meng LI ; Yue-sheng WANG ; Xiao-ming LI ; Han YAN ; Jun ZHANG ; Xiao-jun TANG ; Xin LI
China Journal of Chinese Materia Medica 2003;28(11):1030-1033
OBJECTIVETo investigate various activities of dissolved matter of glycyrrhizic acid of Radix Glycyrrhizae and the powder by supermicro-pulverization.
METHODThe contents of glycyrrhizic acid in different samples were tested.
RESULTThe dissolved matter of glycyrrhizic acid was greatly increased by supermicro-pulverization. The more time used for grinding, the smaller the size of the powder, and the easier the glycyrrhizic acid would be dissolved.
CONCLUSIONSupermicro-pulverization is helpful to the dissolved matter of glycyrrhizic acid of Radix Glycyrrhizae, and the size of powder exerts great influence on dissolved matter of glycyrrhizic acid.
Drug Combinations ; Drugs, Chinese Herbal ; chemistry ; Glycyrrhiza ; chemistry ; Glycyrrhizic Acid ; analysis ; Particle Size ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Powders ; Solubility
9.The current status and the changing patterns of perinatal health care in some southern and northern areas of China, 1994 - 2000.
Ying-hui LIU ; Jian-meng LIU ; Rong-wei YE ; Jun-chi ZHENG ; Ai-guo REN ; Song LI ; Zhu LI
Chinese Journal of Epidemiology 2006;27(12):1029-1032
OBJECTIVETo understand the current status and its changing patterns of perinatal health care in some southern and northern areas of China from 1994 to 2000.
METHODSData was collected in 13 counties/cities covered by Perinatal Health Care Surveillance System which was part of the Sino-American cooperative project on neural tube defects prevention, established in 1992. The study population consisted of 368 589 women who delivered single live births of at least 20 gestational weeks from 1994 through 2000. Chi-square test was employed to test the difference on the proportions of women with prenatal checkup, women with early prenatal care onset, women with at least five prenatal visits, hospital delivery versus home delivery as well as the proportion of women with at least three postpartum visits. Two-way ANOVA was used to test the differences of mean of gestational weeks at first prenatal visit and the mean of prenatal visits between different year and areas.
RESULTSThe proportion of women with prenatal checkup remained over 99.0% from 1994 through 2000. The mean of gestational weeks at first prenatal visit changed from 13.1 weeks in 1994 to 10.7 weeks in 2000. The proportions of women with early prenatal care onset increased from 65.5% in 1994 to 79.4% in 2000 while women with at least five prenatal visit increasing from 34.1% to 71.8%, hospital delivery increasing from 91.3% to 98.8%, home delivery decreasing from 5.6 % to 0. 6%, women with at least three postpartum visits increasing from 80.5 % to 95.1%. Except for the proportion of women with early prenatal care onset, other proportions in northern areas were lower than those in southern areas in the same year. Greater differences between urban and rural areas in northern areas were found than in southern areas.
CONCLUSIONThe utilization of perinatal health care services was greatly improved in both southern and northern areas from 1994 to 2000. However, there were still obvious differences in the perinatal health care services between northern and southern areas as well as between urban and rural areas in northern China.
China ; Female ; Health Surveys ; Humans ; Perinatal Care ; utilization ; Pregnancy ; Rural Health ; Urban Health
10.Characterization and subcellular localization of two 14-3-3 genes and their response to abiotic stress in wheat.
Xiaodan MENG ; Xin CHEN ; Yaying WANG ; Ruixia XIAO ; Hailun LIU ; Xinguo WANG ; Jiangping REN ; Yongchun LI ; Hongbin NIU ; Xiang WANG ; Jun YIN
Chinese Journal of Biotechnology 2014;30(2):232-246
In order to investigate biological functions of the 14-3-3 genes and their response to abiotic stress, two cDNAs (designated as Ta14R1 and Ta14R2) encoding putative 14-3-3 proteins were isolated from wheat by PCR and rapid amplification of cDNA end (RACE) technique. The cDNA of Ta14R1 is 999bp and encodes a protein of 262 amino acids, while the cDNA of Ta14R2 is 897bp in length and encodes a protein of 261 amino acids. Transient expression assays using Ta14R1/Ta14R2-GFP fusion constructs indicated that Ta14R1 and Ta14R2 were located in cytoplasm and cell membrane but not in chloroplasts. Real-time quantitative (RT-PCR) analysis revealed that Ta14R1 and Ta14R2 were differentially expressed in wheat tissues and significantly up-regulated in roots and shoots 1d after germination, indicating they may play a role in process of seed germination. The expression of the two genes in roots and leaves were significantly induced by plant hormone ABA, as well as heat, cold and drought treatments, suggesting that the two 14-3-3 genes in wheat may be involved in ABA dependent stress-responding pathway and response to heat, cold and drought stress.
14-3-3 Proteins
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genetics
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Abscisic Acid
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pharmacology
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DNA, Complementary
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Droughts
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Gene Expression Regulation, Plant
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Genes, Plant
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Germination
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Plant Leaves
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genetics
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physiology
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Plant Roots
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genetics
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physiology
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Stress, Physiological
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Temperature
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Triticum
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genetics
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physiology