1.Effects of Laparoscopic Resection on Systemic Stress Responses in Colorectal Cancer Patients
Chinese Journal of Bases and Clinics in General Surgery 2003;0(03):-
Objective To investigate the systemic stress responses after laparoscopic resection in colorectal cancer patients.Methods Sixty patients were randomized into the laparoscopic resection group (30 cases) and open resection group (30 cases) from October 2001 to September 2002 in our hospital.Analgesic dosages, recovery time of intestinal peristalsis, postoperative temperatures, C reactive protein(CRP), IL 6 and white blood cell (WBC) counts were recorded after operation. Results The changes of postoperative temperatures and WBC counts showed no significant difference between two groups.But in the laparoscopic resection group, the recovery time of intestinal peristalsis, postoperative analgesic dosages, CRP and IL 6 significantly decreased ( P
2.Biomechanical analysis of the deep radioulnar ligaments stabilizing the distal radioulnar joint
Yanbo RONG ; Guanglei TIAN ; Shanlin CHEN
Journal of Peking University(Health Sciences) 2017;49(3):518-521
Objective: To evaluate the role of the deep radioulnar ligament in the stability of the distal radioulnar joint (DRUJ).Methods: In the study, 14 fresh cadaver upper extremities were randomly divided into two groups.After exposuring the palmar and dorsal deep distal radioulnar ligament, one group was marked as palmar deep radioulnar ligament, and the other group was marked as dorsal deep radioulnar ligament.The pronator teres and the supinator were exposed.A Kirschner wire perpendicular to the bone on Lister tubercle of radius was inserted, then another Kirschner wire on the same level of ulnar inserted when the forearm was in neural position, which was kept parallel to the first Kirschner wire.These specimens were mounted on a specially designed jig which held the limb rigidly, keeping the elbow fle-xion and the ulnar fixation.The radius could freely rotate around the ulnar.Then 50 N force on the pronator teres was applied to simulate the active pronation, and 60 N force on the supinator to simulate the active supination.The active pronation was stimulated, and the displacement of the distal radius was measured with respect to the ulna.The active supination was atimulated, and the displacement of the distal radius was measured with respect to the ulna.The palmar deep radioulnar ligament in one group was cut, then the displacement of the distal radius measured with respect to the ulna when the forearm was in pronation and supination.The dorsal deep radioulnar ligament in the other group was cut, and the displacement of the distal radius measured with respect to the ulna when the forearm was in pronation and supination.Results: After resection of the palmar deep radioulnar ligament, the displacement of the distal radius with respect to the ulna was statistically significantly different when the forearm was in pronation (t=5.591, P=0.001), but there was no difference when the forearm was in supination (t=0.433, P=0.680).After resection of the dorsal deep radioulnar ligament, the displacement of the distal radius with respect to the ulna was not different when the forearm was in pronation (t=1.000, P=0.356), but there was statistically significant difference when the forearm was in supination (t=6.225, P=0.001).Conclusion: DRUJ is unstable when the forearm is in pronation after resection of the palmar deep ra-dioulnar ligament, and DRUJ is unstable when the forearm is in supination after resection of the dorsal deep radioulnar ligament.
3.Effect of GETO on Learning and Memory of Sporadic Alzheimer’s Disease Rats
Yujing CHEN ; Jinzhou TIAN ; Rong WANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(04):-
Objective To establish rat models with Sporadic Alzheimer’s disease(SAD) induced by intracerebroventricular administration of streptozotocin(ic-STZ),and observe the effects of compound Jinsiwei(GETO) on learning and memorizing ability of rats.Methods To establish the Sporadic Alzheimer’s disease model by intracerebroventricular micro-injection of STZ bilaterally.GETO groups were treated with gastric perfusion of GETO in three different dosage for 3 months.Learning and memorizing ability of the rats were inspected through Morris water maze test.The effects of GETO and Donepezil were observed and compared.Results In place navigation test,the escape latency and swimming distance were significantly longer in the model group than that in the sham group(P
4.Diagnostic value of echocardiography in myocardial infarction and its complications
Tian TIAN ; Zhaopeng XIE ; Zhuo CHEN ; Rong ZHAO
Chongqing Medicine 2017;46(17):2356-2358
Objective To study the value of echocardiography in the diagnosis of myocardial infarction(MI) and its complica tions.Methods The examination data in 140 cases of MI were collected from January 2012 to January 2016 and performed the analysis and comparison.Results In the ultrasound examination results in 140 cases,120 cases appeared varying degrees of segmental ventricular wall motion abnormalities,its diagnostic rate to MI was 85.71%,which of EKG was 78.57%,the MI detection rate of echocardiography and ECG combined examination was 90.71%,which was higher than that of single use of echocardiography or ECG.With the coronary angiogra-phy results as the control,the detection rate of echocardiography for the coronary arterial lesion sits was 82.86 %.Among 140 cases of MI,22 cases of complications(15.71 %) were de-tected out by echocardiography,including 7 cases of true ventricular aneurysm(5.00 %),4 cases of left ventricular mural thrombosis(2.86 %),1 case of ventricular septal perforation(0.71%) and 10 cases of ischemic mitral regurgitation(7.14%).Conclusion Echocardiography has higher accuracy in the MI diagnosis,com-bining with ECG can further improve the diagnostic rate.
6.Laparoscopic resection of gastric stromal tumors:a report of 32 cases
Wen TIAN ; Rong LI ; Lin CHEN ; Xiaohui DU ; Hongyi LIU
Chinese Journal of General Surgery 2001;0(10):-
Objective To investigate the clinical value of laparoscopic resection of gastric stromal tumors.Methods Thirty-two cases received this new type of operation.The tumors ranged in size from 1.5 to 5.5cm with a mean diameter of 2.6 cm.The operative methods included the full laparoscopic resection of(gastric) tumor and the hand-assisted laparoscopic resection of gastric tumor.Results All cases were(successfully) resected and no complications were observed.The mean operative time was 75min.The mean(intraoperative) blood loss was 50ml.Postoperative pain was slight.Postoperative flatus and feces were passed at a mean of 34 hours,and average postoperational hospital stay was 7.5days.Postoperative pathologic(examination) confirmed that 25 cases were benign GIST and 7 cases were of low-grade malignancy.No(recurrences) were observed at follow up of 8 to 30 months.Conclusions Laparoscopic resection of gastric(stromal) tumor is a technically simple,safe and effective procedure that could be widely used.
7.Study of 16 cases with advanced stage esophageal cancer were local chemotherapy treated by gastroendoscopy
Hong TIAN ; Mei WANG ; Xiaohua XIE ; Huarong LAN ; Rong CHEN
Chinese Journal of Primary Medicine and Pharmacy 2006;0(01):-
Objective To explore efficiently treatment of advanced stage superior segment esophageal cancer.Methods The 30 cases with advanced stage superior segment esophageal cancer were randomly separated two groups:Treatment group 14 cases were local chemotherapy treated by gastroendoscopy,comminute with radication;Control group 16 cases were treated by surgical operative treatment,combinate with vadication.Results The treatment group and conerol group remission rates were 85.71% and 68.75%,1 year's survival rates were 71.42% and 50%.Conclusion Superior segment advanced stage esophageal cancer is local chemotherapy treated by gastroendoscopy,cuvative efficavy is distimction.
8.Elderly patients with refluxesophagitis 104 cases of clinical analysis
Hong TIAN ; Jun WANG ; Xiaohua XIE ; Rong CHEN
Chinese Journal of Primary Medicine and Pharmacy 2008;15(z2):13-14
Objective Explore reflux esophagitis age,symptoms,and the relationship between the degree of esophageal damage.Methods Summing up 198 cases of young and middle-aged patients and 104 cases of elderly pa-tients with the symptom score and Endoscopic mucosal injurs classification.Results Under the old group gastroscopy serious esophagitis more than the young group,old age group was 49.97%,25.25%for the young group,but the clini-cal symptoms of heart burn not obvious.Conclusion Reflux esophagitis damaged esophagus increased with age in-crease,but clinical heartburn symptoms do not necessarily obvious,it should attach importance to the brink throat dis-comfort,and other symptoms.
9.Hand-assisted laparoscopic anterior resection of rectal cancer: a report of 28 cases
Wen TIAN ; Rong LI ; Lin CHEN ; Xiping XIAO
Chinese Journal of General Surgery 2000;0(12):-
Objective To study the effect of hand-assisted laparoscopic anterior resection for rectal cancer(RC).Methods The clinical data of 28 cases of RC operated with hand-assisted laparoscopy were analyzed retrospectively. Results The operations in all the 28 cases were successfully performed, and no intra-or post-operative complications were observed.The number of resected lymph nodes and the resected margins from the tumor were sufficient.After operation,the patients felt less pain, recovered quicker and bowel movement recovered early;first postoperative flatus was appeared at 32 hours after operation;average postoperative hospital stay was 7 days.All the patients were followed-up for 8 to 19 months,and no trocar port tumor implantation or local recurrence occurred.Conclusions The results demonstrate that hand-assisted laparoscopic anterior resection in the treatment of RC have many advantages,such as safe,less trauma,the patients recover quicker,resection of the tumor more complete etc,so it can be used extensively.
10.The combined application of PBPK model and PopPK model in the dose selection of pediatric drug development: an example of rivaroxaban
Wei-zhe JIAN ; Rong CHEN ; Tian-yan ZHOU
Acta Pharmaceutica Sinica 2022;57(10):3157-3162
Model-informed drug development (MIDD) in the development of pediatric drugs is drawing more and more attention due to the insufficiency of subjects, lack of research on ontogeny, and the limitation of ethic. The core of MIDD used for dose selection includes the population pharmacokinetic (PopPK) model and physiologically based pharmacokinetic (PBPK) model, as well as model-based simulation and prediction. PBPK model has the advantage of predicting the optimal pediatric dose before the clinical trials and has the ability of extrapolation from adult model to pediatric model. PopPK model characterizes the pediatric PK feature based on the analysis of clinical data and can be used to explore the significant covariates, which is a power tool for individualized medicine in children. With their own advantages and disadvantages, PBPK and PopPK model should be jointly used in the pediatric drug development to refine the dose regimen for children at different ages. In this study, the pediatric drug development of rivaroxaban was taken as an example to introduce the combined application of PBPK model and PopPK model in the design and validation of pediatric dose regimen in Phase Ⅰ, Ⅱ and Ⅲ trials, which may provide reference to MIDD in other pediatric drug development.