Five purple non-sulfur bacterial strains were isolated from the sediments of the rearing pond. According to the cultural, morphological, cellular spectra, physiological properties and inner intracytoplasmic membrane structures, strain AS-31 that was short rod and contained lamellar intracytoplasmic membrane was identified as Rhodopseudomonas palustris, and other four isolates (AS-32, DA-32, SY-32, and SY34) which were spheroid and contained vesicular intracytoplasmic membranes were identified as Rhodobacter spheroids. Pure cultures of strains AS-31 and SY-32 were used as additive in aquiculture of Tilapia sp.. After weeks of incubation, the weight and surviving percentage of experimental fishes increased about 20% than those of the control group without any additive. However, the mixed culture of strains AS-31 and SY32 have no obvious effect than that of the pure one. It demonstrated that the cultures of purple non-sulfur bacteria are of benefit to aquiculture and could be used as an additive.

AIM:To study the effect of levofloxacin(LVFX)on serum concentrations and pharmacokinetics of phenytoin sodium(PHT)in rabbits.METHODS:Using UV-spectrophotometry,the serum concentrations of PHT were determined in nine rabbits before oral feeding LVFS and after a single dose of PHT given iv 10 days later.The pharmacokinetic parameters were worked out with 3p87 program.RESULTS:The concentration-time curve of PHT was fit to open two-compartment model.After co-administration of LVFX,the serum concentrations of PHT were decreased to some extent and part of pharmacokinetic parameters obviously changed as well.CONCLUSION:Co-administration of PHT and LVFX will accelerate the metabolic process of PHT.

Objective:To research the expense distribution of discharged patients during hospitalization to find out the period with the greatest weight, and provide reliable evidence for the increase of turnover rate by controlling hospitalization of patients and medical security. Methods:Totally 2 444 discharged patients of our hospital from September to November in 2013 with stay day of 1 to 20 d were analyzed, and then divided into the internal medicine group and surgical groups including surgical operation group and surgical without operation group. The hospitalization expenses and drug expense in all the groups were counted and compared. Results: The daily expense in the internal medicine group showed significant difference when compared with that in the surgical operation group and surgical without operation group (P<0. 01), meanwhile, that in the two surgical groups had no significant difference (P>0. 05). The daily expense in the surgical operation group was with linear decrease, and that in the other groups was with logarithmic decline. The 10-day expense in each group had significant difference (P<0. 05) compared by median test. The expense proportion of drugs in all groups was generally increased along with the hospitalization days. Conclusion:The effective method for the decrease of drug pro-portion is shortening hospitalization days,especially in surgical departmens,the drug proportion is increased along with the length of stay.

Liver functional reserve which functioned as the major evaluation factor for the tolerance of the liver surgery or the liver trauma had already been used wildly in preoperative evaluation for liver surgery.So far there were plenty of techniques for liver functional reserve.But each technique had its own advantages and disadvantages.This article briefly discussed the most wildly used techniques for liver functional reserve in preoperative evaluation.

OBJECTIVE To evaluate the changes in serum levels of TNF-? and IL-6 after thoracic operation,and the relationship with multiple organ dysfunction syndrome(MODS).METHODS Serum levels of TNF-? and IL-6 in 46 cases of benign disease between 2000 to 2003 were observed on the day of operation,the 3rd,7th,14th and 21th days after operation,the patients were divided into two groups according to the presence of MODS.RESULTS Cases occurred MODS in two weeks after thoracic operation,the serum levels of TNF-? and IL-6 were markedly higher in MODS than that in non-MODS,the correlation coefficients between them were r=0.9145,P

Carcinoma, Hepatocellular ; complications ; surgery ; Humans ; Liver Cirrhosis ; etiology ; surgery ; Liver Neoplasms ; complications ; surgery

OBJECTIVE:To establish a method for the simultaneous determination of chloramphenicol and dexamethasone sodium phosphate in ear drops by HPLC METHODS:Chloramphenicol and dexamethasone sodium phosphate were separated with a mobile phase of methanol-phosphate buffer solution(0 34% KH2PO4 solution)(60∶40,v/v,1 0ml/min)on Kromasil C8 column and detected at 240nm RESULTS:Good linearity appeared in the concentration of chloramphenicol 100～500?g/ml,r=0 9 999,the recovery was 98 5%～100 8%,RSD≤1 5%;and good linearity showed in the concentration of dexamethasone sodium phosphate 16～80?g/ml,r=0 9 990,the recovery was 98 8%～100 6%,RSD≤2 0% CONCLUSION:This method can simultaneously detect both ingredients in the ear drops

[Objective]To study the methods and opportunity of operation for the malignant tumor intercurrent fracture of extremity.[Method]Seventeen cases of malignant tumor intercurrent fracture of extremity were reviewed in our hospital from June 1996 to October 2003 in the study,which included osteosareoma 4 cases,giant cell tumor 3 cases,ewing tumor 1 case,ametoblastoma of bone Ⅰ case,bony metastases 8 eases.4 cases treated with exterior fixation and chemotherapy in Ⅰ P(period)and reconstruction alter tumor cutting in ⅡP(period),11 cases treated tumor eliminate and reconstruction in Ⅰ P(period).One case amputed in Ⅰ P(period)and 1 case amputed in Ⅱ P(period).[Result]All patients treated had been followed up from 12 to 88 months.One case occurred local rccurrrenee.and 2 cases died because of lung metastases in the 9 cases of primary malignant tumor.While 1 case occurred local reecurrenee and 4 cases died in the 8 cases of metastasis malignant tumor.[Conclusion]For the primary,malignant tumors with fracture.which were sensitive to chemotherapy,should first take into account to exterior fixation and chemotherapy inⅠ P(period)and reconstruction after tumor cutting in ⅡP(period),while for the insensitive giant cell tumor and bony metastases with fracture should be treated with tumor eliminate and reconstruction in ⅠP(period).

Objective To investigate the causer of, and the way to deal with the measurement of protecting from vascular compromise in free flap transplantation. Methods To retrospectively study the clinical data collected from the 89th Hospital of PLA including 305 cases of vascular compromise in free flap transplantation held on June, 1983 to December, 2006. Accoding to the different tissue flaps and different sites to be repaired, 11 factors of vascular compromise of free flap transplantation were to be investigated including operation design, the recipe of free flap, the variation of vascellum, the skill of recipe, the operation opportunity, the match of vascellum, the debride of vascellum, the vascellum angiotasis, the vascular anastomosis, the management of vascular articulo and the infection. Results Among the 305 cases of free flap transplantation, arterial compromise existed in 270 cases, 10 cases developed arterial compromise during operation, 6 cases were due to the injury of nutrient vessel, the flap survived after the revascularization. 4 cases obtained part necrosis of 10 cases, and the rotation flap and skingrafting covered the raw surface. The rest 213 cases survived and 47 cased failed. Another 35 cases of vein compromise were obtained. Among them, 5 cases survived, part necrosis of 10 cases, and 20 cases failed. Conclusion Vascular compromise is the factor of necrosis in free flap transplantation. It is of cardinal importance to timely and correctly treat the vascular compromise in free flap transplantation whether happened intra-or postoperatively. This is the key to access high successful rate. Preventive measures are even more beneficial than proper management after its occurrence. The venous return disorder was the main factor of free flap transplantation failure.

Objective: To investigate the changes of haemodynamics, pulmonary mechanics and blood gas in volume controlled and pressure controlled ventilatory patterns during one-lung ventilation (OLV). Methods: 20 patients with patent ductus arteriosus (PDA) underwent left thoracotomy PDA ligation with right OLV. The patients were divided into three groups: two-lung ventilation with volume controlled (TLV-VCV), one-lung ventilation with volume controlled (OLV-VCV), and one-lung ventilation with pressure controlled (OLV-PCV). After two-lung ventilation with VCV, one-lung ventilation was started by VCV and the ventilation mode was then switched to PCV. All measurements were made 25 min after initiation of the ventilation mode. The respiratory mechanics index was measured by side stream spirometry (SSS), including peak airway pressure (Ppeak), plateau pressure (Pplat), airway resistance (Raw), lung compliance (Cdyn) and inspiratory and expiratory minute ventilation (Mvi, Mve). Cardiac output (CO), stroke volume (SV), systemic vascular resistance (SVR), left ventricular ejectiontime (LVETi), and aortic blood flow acceleration (ACC) were also measured, by using the transesophageal Doppler (TED) monitor. Arterial blood gases was determined in every ventilation mode. Results: Ppeak、Pplat and Raw were significantly higher during OLV-VCV than that during TLV-VCV (P