Clavicle ; Forensic Medicine ; Fractures, Bone ; Humans ; Skull Base

Objective To test the effect of hypothermia on Na+/H+ exchange, activated by shrinkage and cytoplasmic acidosis. Method Amiloride-sensitive Na+ influx in guinea pig red cells was traced with isotope 22Na and intracellular Na+ concentration was measured by emission flame photometry. Result Amiloride-sensitive Na+ influx decreased linearly as a function of temperatures (about 37℃) in shrunken cells, but increased in acidified cells. The up-regulation of acid-induced Na+／H+ exchange by elevated temperature was enhanced by hypo-osmolarity. Less sensitivity of intracellular H+ site at 41℃ may be the mechanism for the inhibition of shrinkage-induced Na+/H+ exchange by elevated temperature. Heating-mediated explosive increase in the activity of acid-induced Na+/H+ exchange may be due to enhanced extracellular Na+ sensitivity and lower intracellular pH caused by acidic metabolites. Acid-induced Na+/H+ ewxchange contributes to cytoplasmic Na+ accumulation. Conclusion These two modes of Na+/H+ exchange with different response to elevated temperature may play different roles in the cellular pathogenesis of heatstroke.

Objective To research the clinical safety and feasibility of self-made devices in gasless laparoscopic surgery. Methods A total of 5 generations of gasless laparoscopic devices (8 models) were designed and manufactured by ourselves from April 1993 to September 2004. After animal experiments, 15 types of different gasless laparoscopic operations were carried out in 87 patients. Results Out of the 87 cases, conversions to open surgery were required in 7 cases (conversion rate, 8.0%). The other 80 cases of gasless laparoscopic operations were successfully performed, involving cholecystectomy, colorectal resection, partial cecectomy, subtotal gastrectomy, inguinal herniorrhaphy, abdominal wall contraction, radical resection for carcinoma of renal pelvis, haital herniorrhaphy with Toupet’s fundoplication and total hysterectomy. Conclusions Our self-made gasless laparoscopic devices may be applied safely and effectively in clinical cases. Gasless laparoscopic surgery has been reflecting the complementary advantages of modern laparoscopic surgery and traditional open surgery. It is of supplementary significance in patients contraindicated to pneumoperitoneum and of distinctive importance for laparoscopic gastrointestinal surgery requiring abdominal fistulization or prolonged incision, as well as hand-assisted hepatobiliary or pancreatic laparoscopic surgery.

Objective To evaluate the effectiveness and method of intraarterial embolization in treatment of hepatic cavernous hemangioma. Methods 17 patients,8males and 9 females, were treated by super selective hepatic artery embolization with iodized oil, gelfoam pieces, and embolization coils. Results All patients had been embolized successfully. The rate of success was 100%. 11 cases were followed up by CT/USG for 1～12 months. The size of tumor was decreased more than 50% in 8 cases, more than 30% in 2 cases, and the effect was uncertain in 1 case. Symptoms of 11 patients were disappeared and relief was obvious in 5 cases.Total effective rate was 94% with no significant complications. Conclusions HAE is a safe and effective method. It may be considered as the first method of choice in treatment of hepatic cavernous hemangioma.

Angina Pectoris ; prevention & control ; Coronary Disease ; prevention & control ; Drugs, Chinese Herbal ; therapeutic use ; History, Ancient ; Humans ; Medicine, Chinese Traditional ; methods ; Phytotherapy ; history ; methods

Objective To determine the optimum extraction and purification technology of Huangqi Baihe Granules (HBG) by using orthogonal design and combination empowerment based on G1-entropy method, so as to provide a reference for the industrial production. Methods With the ethanol extraction amount and paste-forming rate of calycosin7-O-β-D-glucopyranoside, hesperidin, crude polysaccharide as evaluation index, and with the extraction times, extraction time and the water adding amount as investigate factors, then the combination empowerment method based on G1-entropy method and orthogonal design were used to optimize the extraction technology of HBG. The same combined methods were used to optimize the purification technology of HBG with retention rate and removal rate of impurity of ethanol extract of calycosin7-O-β-D-glucopyranoside, hesperidin and crude polysaccharide, as evaluation index, and with the membrane pore diameter, operating pressure and filtration temperature of multi-channel tubular ceramic ultrafiltration membrane as investigate factors. Results The test results showed that the optimum extraction technology was as follows: Extracted 2 times with 20 times the amount of water and each for 75 min. The optimum ultrafiltration technology was as follows: Multi-channel tubular inorganic ceramic membrane at 50 nm, operating pressure at 0.10 MPa, filtration temperature at 45 ℃. Under such condition, there was no significant difference between verification groups of three batches. Conclusion The optimized extraction and purification process is stable and feasible by verification, which can provide experimental basis for industrial production of HBG.

Objective To evaluate the accuracy of multi-detector spiral CT (MSCT) semiautomated volumetric measurement of right lobes and its value in living donor liver transplantation (LDLT). Methods Fifty-six donors underwent four phases MSCT. Pre-operative liver volumes of two measurements [IQQA(R)-liver semi-automated (Vs) and manual volume (Vm) measurements] in portal vein phase were compared with intra-operative measurement (Vio) by means of water displacement. Results Correlation analysis and Bland-Altman tests were used for statistical analysis.Results Pre-operative measurements of grafts resulted in a mean Vs, Vm, Vio of (818. 60 ± 161.43)cm3 , (880. 16 ± 169. 92) cm3 and (669. 84 ± 141.37) cm3 respectively. All corresponding pre-and intra-operative data were correlated significantly with each other. There was a good correlation between Vs and Vio(r= 0. 778, P＜0. 05), so did Vm and Vio(r= 0. 746, P＜0. 05). The equations of linear regression were Vio = Vs × 0. 681 + 112. 26, and Vio = Vm × 0. 620 + 123. 81 respectively. Exact 95 % CIs and the extent of concordance were 121.57-175. 95 cm3, -354. 135-56. 62 cm3 for semiautomated measurements, and 180. 09-240. 56 cm3 , - 438. 66-18. 01 cm3 for manual measurements,respectively. Conclusion Semi-automated method for the volumetric measurements of the right liver lobes in LDLT is more accurate than the manual method.

Comorbidity ; Humans

Coronary Artery Disease ; pathology ; Humans ; Medicine, Chinese Traditional

Abdominal Neoplasms ; genetics ; metabolism ; pathology ; Chromosomes, Human, Pair 20 ; genetics ; Chromosomes, Human, Pair 8 ; genetics ; Fibromatosis, Aggressive ; etiology ; genetics ; metabolism ; pathology ; Genes, APC ; Humans ; Mutation ; Trisomy ; beta Catenin ; genetics ; metabolism