1.Clinical investigation of laparoscopic biliary re-operations
Pei XIONG ; Yi PENG ; Xiaochu ZHOU
Chinese Journal of Minimally Invasive Surgery 2001;0(04):-
Objective To investigate the feasibility and techniques of laparoscopic biliary re-operations. Methods Laparoscopic surgery was performed in 13 patients with bile duct stones who already had undergone biliary tract operations. Results Laparoscopic choledochotomy was successfully completed in 12 cases, while a conversion to open surgery was required in 1 case. The success rate of laparoscopic surgery was 92.3% (12/13). The operation time was (101~300) min, with a mean of 155 min. No intra- or post- operative complications occurred. Conclusions Laparoscopic biliary re-operations are feasible and experiences are needed to ensure the success of surgery.
2.Significance of proteomic fingerprints on shifting the NSCLC patients with Gefltinib
Shuxiang SUN ; Shouxi HU ; Huachao ZHOU ; Yi PEI
Cancer Research and Clinic 2009;21(6):393-395
Objective Verification of the serum proteomic fingerprints of NSCLC (non-small cell lung cancer) patients related to their advantage in Gefitinib therapy. Methods 27 NSCLC patients who have been treated with Gefitinib for more than 1 month and attained certain efficacy were taken for examination. They were divided into 3 groups, CR+PR, SD and PD, according to the evaluation criteria of solid tumor curative efficacy. All patients received SELDI (SELDI-TOF-MS surface-enhanced laser desorption/ionization time-of-flight mass spectrometry technique) inspection before treatment with Gefitinib. The shifting procedure was based on the abundance of the fingerprint :"M/Z 8693 50H+". According to the abundance of this fingerprint founded, the patients were divided into 4 populations: 1. The advantage population (10 patients, abundance 10 %);2. The disadvantage population (7 patients, abundance≥30 %);3. Suspected population A (5 patients, abundance 11%-15 %);4. Suspected population B (5 patients, abundance 16~ 29%). The ratio of patients in each of the 3 groups (CR + PR, SD and PD) into each of the above 4 populations were analyzed. Results It showed that: 1. In the advantage population, the ratio dispersed from CR + PR group is 9/10, those from SD group is 1/10 and from PD is 0.2. In the disadvantage population, the ratio dispersed from CR + PR group is 1/7, those from SD group is 1/7 and from PD is 5/7. In the suspected A group, the ratio from CR + PR group is 3/5, those from SD group is 1/5 and from PD is 1/5. 4. In the suspected B group, the ratio from CR + PR group is 3/5, those from SD group is 1/5 and from PD is 1/5. Conclusion This fingerprint "M/Z 8693 50H+" with abundance 10% after SELDI inspection is the index choosing advantage patients suitable to receive Gefitinib therapy.
3.CT perfusion imaging study of perihematomal cerebral blood flow in experimental intracerebral hemorrhage
Jian ZHOU ; Pei-yi GAO ; Xiao-guang LI ; Hong WAN
Chinese Journal of Rehabilitation Theory and Practice 2004;10(8):472-474
ObjectiveTo study the mechanism of hemodynamic alternation surrounding the hematoma in the acute stage of intracerebral hemorrhage (ICH) in rats.MethodsSeventy male Sprague Dawley rats were randomly divided into ICH group and sham operated group, which were microinjected with 40 μl fresh autologous blood or saline into the right caudatum respectively. The each group was divided into 7 subgroups at 1h,3h,6h,12h,24h,48h and 72h after the ICH. CT perfusion imaging in measurements of regional cerebral blood flow adjacent to hematomas was performed. The ratios of side to side were measured at the regions around the hematomas by personal computer aided mapping. So the parameters of regional cerebral blood flow(rCBF), regional cerebral blood volume(rCBV) and mean transit time(MTT) were calculated respectively.ResultsThe rCBF and rCBV adjacent to the hematomas were lower than those of the outer region pronouncedly. The alternation of rCBF around the hematoma were fluctuated, which reduced to the valley at 1h after ICH, and then gradually returned to the peaks at 6h and 24h after ICH. In the meantime, the rCBV around the hematoma reduced to the valley at 1h after ICH, and then gradually increased to the peak at 24h after ICH.ConclusionThe abnormal hemodynamic changes can be found in the perihematomal region after ICH. The alternation of rCBF around the hematomas are fluctuated, but the changes of rCBV remain continuous increase. The mass effect of hematoma, intracranial hypertension caused by the mass effect of hematoma, and the autoregulation of cerebral blood flow motivated by the initial depression of cerebral blood flow play a very important role in the changes of cerebral blood flow.
4.An experiment study on the prevention of scar formation of the filtering bleb by the application of anterior lens capsule in trabeculectomy with cataract surgery in rabbit eyes
Yi, SHAO ; Chong-Gang, PEI ; Qiong, ZHOU ; Hui, ZHOU ; Yong-Yan, LIU ; Gui-Ping, GAO
International Eye Science 2006;6(6):1237-1240
· AIM: This study was designed to evaluate the effectiveness of anterior lens capsule inclusion in combined trabeculectomy and cataract surgery in preventing scar formation of the filtering bleb in rabbit model.· METHODS: Twerty-Four eyes (12 rabbits) with glaucoma model were studied, anterior lens capsule inclusion in trabeculectomy with the small-incision cataract surgery were performed on all right eyes (experimental group) and no implants were applicator in trabeculectomy with the small-incision cataract surgery on all left eyes (control group). These operated eyes were followed up from day 1 to 6 months postoperatively. Intraocular pressure (IOP) was measured and filtering blebs were observed after surgery. Other main outcome measures: cornea、conjunctiva、formation of the anterior chamber, anterior chamber depth、inflammatory reaction、achievement ratio of operation and complications were analyzed. On week 1, 2, 4, 12 and 24 after surgery the animal were killed in batch. Tissue was harvested from the bleb area and was made pathological section. HE staining、light microscope and micro photo analysis technique were applied to observe the cytological and histopathologic characteristics of the filtering tunnels.· RESULTS: There were significant differences between the two groups on IOP (1, 2, 4 weeks)、filtration bleb, achievement ratio of operation and complications. In experimental group, at the first month postoperatively, anterior lens capsule absorption started with inflammatory characteristics. The peak of inflammatory reaction occurred 1 week after operation and all the cells in the filtrating tunnel disappeared 6month after surgery. The fibroblast proliferation in control group occurred at I week and the filtrating tunnel closed with angiogenesis at 1 month after surgery. Fibroblast proliferation started 1week after surgery with no statistical difference during the time course (P >0.05). Significant statistical differences were observed by comparing the fibro blasts numbers per unit area in the filtrating tunnel in experimental group and those in control groups (P<0.05).· CONCLUSION: Anterior lens capsule was totally absorbed at 6 months postoperatively. Anterior lens capsule inclusion in trabeculectomy with cataract surgery can possibly control intraocular pressure effectively, long-term sustainability of functional filtration bleb, inhibition of the proliferation of fibroblasts and opening of the filtrating pathway in the experimental animal models were satisfied. Compared to the control group, anterior lens capsule application has less complication.
5.Three-dimensional computerized preoperative planning of acetabular prostheses implantation in total hip arthroplasty with Crowe Ⅳ type developmental dysplasia of the hip patients
Yi ZENG ; Oujie LAI ; Bin SHEN ; Jing YANG ; Zongke ZHOU ; Pengde KANG ; Fuxing PEI
Chinese Journal of Orthopaedics 2014;(12):1212-1218
Objective To study whether 3D computerized pre?operative planning is accuracy and reliability in CroweⅣtype developmental dysplasia of the hip (DDH) patients undergoing total hip arthroplasty (THA). Methods Between September 2009 and February 2011, 20 CroweⅣtype DDH patients (20 hips) were included in this study. The 3D pre?operative planning was performed using Mimics software to predict the acetabular component size, acetabular component abduction angle, hip rota?tion center position, the acetabular component coverage and number of patients received structural bone graft. The results were compared with traditional acetate templating technique and post?operative results. Results 70%(14/20) components were pre?dicted exactly and 30%(6/20) components were predicted with one size using 3D computerized planning, comparing with 25%(5/20) components were exactly, 45%(9/20) components were with one size and 30%(6/20) were with two size or more using conven?tional acetate templating technique. Statistically analysis revealed that 3D planning was more accuracy than templating technique regarding acetabular component prediction (t=-4.66, P=0.00). There was no significant difference between the 3D computerized planned acetabular component abduction angle (3D plan 41.10°±4.87°, postoperative 44.98°±10.83°, t=0.88, P=0.42), hip rota?tion center distance (horizontal distance:3D plan 77.51 ± 7.78 mm, postoperative 79.85 ± 8.61 mm, t=-1.95, P=0.11;vertical dis?tance:3D plan 42.79±8.22 mm, postoperative 44.98±10.83 mm, t=-1.27, P=0.26), acetabular component host coverage (3D plan 77.73%± 10.51%, postoperative 78.98%± 10.24%, t=-1.84, P=0.09), and that found post?operatively. Five patients were consid?ered to need structural bone graft according to 3D computerized planning, which was highly coincident with the intraoperative find?ings in all five cases. Conclusion 3D computerized pre?operative planning using Mimics software is an accurate and reliable technique in treating CroweⅣtype DDH patients undergoing THA.
6.Application of Duff in treatment for early stage threatened abortion
Yan ZHANG ; Xiaomei ZHOU ; Pei HE ; Haifen QIAN ; Yanwen YU ; Yi DU
Chinese Journal of Endocrine Surgery 2017;11(2):140-142
Objective To explore the application of Duff in treatment for patients with early stage threat ened abortion.Method 1000 patients with early stage threatened abortion admitted from Jan.2015 to Jun.2016 were selected,and were divided into two groups.All patients were treated by conventional therapy and Duff therapy.Treatment effects of the two groups were observed and compared.Results The differences of clinical characteristics between the two groups had no statistical significance (all P>0.05).No serious adverse reactions oc curred to either group.There was no significant difference in remission and disappearance time of clinical symptoms between the two groups (t=0.334,0.367,all P>0.05).The total treatment efficiency was higher in the observation group than in the control group,but the differences had no statistical significance (x2=0.058,/P>0.05).Conclusion There is a certain application value of Duff treatment for early stage threatened abortion,which is safe,efficient,and convenient,worthy of promotion.
7.Short-term effects of total hip arthroplasty using metal-on-metal prosthesis with large diameter femoral head
Yi ZENG ; Bin SHEN ; Qiang HUANG ; Jing YANG ; Zongke ZHOU ; Pengde KANG ; Fuxing PEI
Chinese Journal of Orthopaedics 2011;31(5):469-474
Objective To evaluate clinical and radiographic outcomes associated with total hip arthroplasty (THA) using metal-on-metal prosthesis with large diameter femoral head.Methods From October 2007 to December 2007,41 patients (49 hips) underwent large diameter femoral head metal-on-metal THA in our hospital were involved in this study.Clinical outcomes measures were Harris score,hip range of motion and incidence of complications.Abduction angle and anteversion angle of cup were measured on radiological films.The radiolucent line and osteolysis around the prosthesis were also recorded.Results Thirty-nine patients (47 hips) were followed up at least 2 years.The average Harris hip score had improved from (43.8±13.1) points preoperatively to (92.0±5.4) points at final follow-up.All the patients had attained satisfactory results.No late complication happened.For the rang of motion at final follow-up:flexion of the hip had improved from 79.8° to 113.2°,abduction had improved from 20.9° to 40.2°,external rotation had improved from 12.0° to 30.8°.Radiological measurement showed the mean abduction angle of cup was 39.5°±4.9°,the mean anteversion angle of cup was 14.5°±2.1°.No radiolucent line and osteolysis were found after THA.Conclusion The short-term effects of THA using metal-on-metal prosthesis with large diameter femoral head is encouraging,especially for young patients.
8.Identification of peucedani radix, peucedani decursivi radix and its adulterants using ITS2 sequence.
Dian-Yun HOU ; Jing-Yuan SONG ; Pei YANG ; Hong ZHOU ; Tian-Yi XIN ; Hui YAO
China Journal of Chinese Materia Medica 2014;39(21):4186-4190
In order to identify Peucedani Radix, Peucedani Decursivi Radix and their adulterants, the internal transcribed spacer 2 (ITS2) regions of Peucedani Radix, Peucedani Decursivi Radix and their adulterants were amplified and bidirectionally sequenced based on the Principles for Molecular Identification of Traditional Chinese Materia Medica Using DNA Barcoding, which has been promulgated by Chinese Pharmacopoeia Commission. Sequences were analyzed and assembled by Codon Code Aligner V3. 7.1. The relevant data were analyzed by MEGA 5. 0. Species identification analyses were performed by using the nearest distance methods and neighbor-joining (NJ) methods. The result showed that the ITS2 sequence lengths of Peucedani Radix were 229-230 bp and the average intra-specific genetic distances were 0.005. The ITS2 sequence lengths of Peucedani Decursivi Radix were 227 bp and the sequences contained no variation site. The average inter-specific K2P genetic distance of Peucedani Radix, Peucedani Decursivi Radix and their adulterants species were 0.044 and 0.065 respectively. The minimum inter-specific divergence is larger than the maximum intra-specific divergence of Peucedani Decursivi Radix. The nearest distance methods and NJ trees results indicated that Peucedani Radix, Peucedani Decursivi Radix and their adulterants species could be identification clearly. The ITS2 regions can stably and accurately distinguish Peucedani Radix, Peucedani Decursivi Radix and their adulterants.
Apiaceae
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classification
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genetics
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DNA Barcoding, Taxonomic
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methods
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DNA, Ribosomal Spacer
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Drug Contamination
9.Study on the relative bioavailability of diclofenac sodium extended action tablet in human body
Cuifang WU ; Qi HUANG ; Qi PEI ; Yulu ZHOU ; Dan YI ; Shikun LIU
Journal of Chinese Physician 2002;0(S1):-
0.05)in healthy volunteers.
10.Ultrasound-guided thrombin injection for treatment of iatrogenic femoral pseudoaneurysm
Pei JIANG ; Shugui SHI ; Yi WANG ; Long LU ; Guangjian LI ; Yanli GUO ; Kangning CHEN ; Zhenhua ZHOU
Journal of Regional Anatomy and Operative Surgery 2016;25(5):342-346
Objective To investigate the best injection position and curative effect of ultrasound-guided thrombin injection (UGTI)on femoral pseudoaneurysm (FPA).Methods Review the data of FPA cases in the neurology department of southwest hospital from January 2010 to June 2015.Detailed clinical information of the patients,including the curative effect of local compression therapy,the position,meth-od,dosage and curative effect of ultrasound-guided thrombin injection were collected and analyzed.Results From January 2010 to June 2015,43 cases (1.20%)of FPA were diagnosed in 3573 patients undergoing cerebrovascular interventional operation.Local compression therapy was effective in 11 of 43 FPA patients.The remaining 32 patients who had no response to local compression therapy were treated by UGTI,and the average dosage of thrombin was (30 ±12)IU.All FPA were blocked successfully within 1 minute and without any distal em-bolism events after the first UGTI attempt.No relapse and complications occurred during the follow-up of 5 to 70 months,averagely (38.69 ± 20.79)months.Conclusion UGTI is effective for treatment of FPA who had no response to local compression therapy.Thrombin injection at position far away from the blood flow direction of pseudoaneurysm neck crevasse with ultrasound-guided could bring about highe success rate, less amount of thrombin,and less complications.