Objective To investigate the relationship between the levels of serum procalcitonin (PCT) and cardiac troponin I (cTnI) in patients with sepsis.Methods According to the severity of the disease, 126 patients with sepsis in the Department of Critical Care Medicine of Hubei Provincial Hospital of Integrated Chinese and Western Medicine from June 2013 to February 2015 were divided into three groups: sepsis, severe sepsis and septic shock groups, 42 cases in each group. The changes of lactate (Lac) and central venous oxygen saturation (ScvO2) were monitored in the three groups within 72 hours after admission, the mortality and acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score within 24 hours after admission, the levels of serum PCT and cTnI were compared among the three groups, and the correlations between serum PCT, cTnI levels and APACHE Ⅱ score were analyzed.Results Along with the increase of patients' severity in the three groups, the levels of Lac (mmol/L) were gradually increased (prior treatment: 5.82±2.42, 7.97±3.76, 10.30±2.82; 6 hours after treatment: 3.63±1.54, 5.08±1.98, 7.50±1.35; 12 hours after treatment: 2.70±1.55, 4.13±1.96, 6.23±1.16; 24 hours after treatment: 2.58±1.35, 3.95±2.44, 5.25±1.13; 48 hours after treatment: 2.15±1.82, 3.86±2.36, 4.12±1.72; 72 hours after treatment: 1.83±1.04, 3.78±1.84, 3.74±0.87), while the levels of ScvO2 were gradually reduced (prior treatment: 0.556±0.102, 0.502±0.095, 0.402±0.092; 6 hours after treatment: 0.627±0.062, 0.557±0.083, 0.504±0.075; 12 hours after treatment: 0.658±0.076, 0.601±0.083, 0.595±0.072; 24 hours after treatment: 0.676±0.059, 0.625±0.084, 0.603±0.050; 48 hours after treatment: 0.704±0.049, 0.656±0.066, 0.615±0.035; 72 hours after treatment: 0.755±0.053, 0.707±0.066, 0.629±0.048). The higher the Lac, the lower the ScvO2, and the differences among the three groups were of statistical significance (allP < 0.01). The mortalities of patients in the septic, severe septic and septic shock groups were as follows: 11.9% (5/42), 21.4% (9/42), 38.1% (16/42); serum PCT (μg/L): prior treatment: 5.21±2.92, 17.20±4.81, 40.71±5.22; 4 days after treatment: 2.51±1.52, 10.72±3.83, 46.45±4.25; the levels of cTnI (μg/L): prior treatment: 5.31±0.82, 9.50±0.31, 15.12±3.15; 4 days after treatment: 1.16±0.62, 5.35±0.53, 9.24±1.25; APACHE Ⅱ score: prior treatment: 10.41±3.72, 20.15±5.14, 35.17±4.58; 4 days after treatment: 7.25±2.22, 14.15±4.16, 28.12±3.13. Their levels were also increased along with the increase of the septic severity. The correlation analyses showed that the serum levels of PCT was significantly positively correlated with cTnI and APACHE Ⅱ score (r value was respectively 0.922, 0.921, bothP < 0.01).Conclusion Myocardial damage often easily occurs in patients with sepsis, and the more serious the illness, the more prominent the injury.

Objective To investigate the clinical characteristics on diagnosis and treatment of renal tubercu- losis.Methods Clinical data of 82 patients with renal tuberculosis were retrospectively reviewed.Results All of the 18 cases who received medication recovered completely.64 cases undergoing surgery were pathologically diagnosed to have renal tuberculosis,of which 2 cases developed ureteral stump syndrome.Conclusion Urine PCR-TB-DNA re- mained the primary diagnostic method before operation.Computed tomography(CT)and magnetic resonance urogra- phy(MRU)could be used in diagnosis of renal tuberculosis.When the non-functioning kidney was resected,per- inephrit fat and the involved ureter should be concomitantly resected as much as possible.

Objective: To investigate the purification technology of total flavonoids from the diaphragma of Juglans regia by macroporous resin. Methods: Twelve macroporous resins were chosn with static and dynamic adsorption and desorption experiments to optimize the purification parameters. Results: AB-8 macroporous resin was found to have good adsorption and desorption effects. The optimal purification conditions were pH value of 4.70, sample mass concentration of 0.713 5 mg/mL, the loaded amount of 4 mL/g, and loading flow rate of 1.5 BV/h. The sample was eluted by water with 2 BV and 50% ethanol of 2.5 BV, respectively. The purity of total flavonoids increased to 72.25% after the purification, and the yield was 93.94%. Conclusion: AB-8 is an ideal resin with the best enrichment for separating and purifying the total flavonoids from diaphragma of J. regia.

Objective:To investigate the influences of repeated propofol anesthesia on the hippocampal apoptosis and the long-term learning and memory abilities of neonatal rats.Methods: In the study,45 male Sprague-Dawley rats,aged 7 days,were randomly divided into 3 group (n=15 each): control group (C group) that received intralipid 7.5 mL/kg intraperitioneal (IP) once a day×7 days;group propofol 1 (P1) that received propofol 75 mg/kg IP once a day×7 days;group propofol 2 (P2) that received intralipid 7.5 mL/kg IP once a day×6 days+propofol 75 mg/kg IP on the 7th day.In each group,5 animals were chosen and arterial blood samples were obtained immediately after the animals were fully awake for blood gas analysis.Learning and memory abilities were assessed using Morris water maze when the other rats were 4 weeks old.The animals were decapitated after the tests.The hippocampi were isolated for detection of neuron-specific nucleoprotein (NeuN) expression by immunohistochemistry method and the expression of caspase-3 using the Western blot.Results: There was no significant difference in the indexes of blood gas analysis among the 3 groups.Morris water maze test: compared with group C,the escape latency and the length of searching on the 5th day were significantly prolonged,and the searching time in target quadrant and platform crossing on the 6th day were significantly decreased in group P1 (P<0.05) but not in group P2.Compared with group C,NeuN-positive neurons were decreased,and the expression of caspase-3 was increased in the rats of group P1 (P<0.05) but not in group P2.Conclusion: Repeated propofol anesthesia may destroy long-term learning and memory abilities by inducing apoptosis of hippocampal neurons in neonatal rats,while single dose of propofol has no obvious effect on the hippocampal apoptosis and long-term learning and memory of neonatal rats.

Catechol-type siderophores secreted by a strain of soil bacteria in three different medium were assayed by two high-resolution TLC.The results showed different medium had a significant effect on the secretion of catechol-type siderophores,and in three different medium strain S1 produced different catechol-type siderophores.The effect of Al~(3+) on Catechol-type siderophores by S1 were also assayed.The results showed Al~(3+)had a significant stimulation on the secretion of catechol-type siderophores.Moreover,Al~(3+)could to some extent counteract the repression of Fe~(2+)on siderophores production.In KMB medium four catechol-type siderophores were identified and all ones except for 2,3-dihydroxybenzoic acid(2,3-DHBA) had high affinity for Al~(3+).

Objective To study the therapeutical effect of glutathione(GL),a powerful antioxidant on the symptoms and ECG in patients with coronary heart disease and its mechanisms.Methods Eighty-five subjects with coronary heart disease were recruited(45 male and 40 female).The patients were randomized to receive GL (240 mg,ivgtt,qd,for 14 days,n=44)on the top of conventional treatment(aspirin+?-blocks+ACEI)or conven- tional treatement alone(control,n=41).The serum MDA,SOD,NO levels were determined.Electrocardio- graphy(ST stage,T wave)was examined.Results GL significantly improved clinical symptoms scores(2.0+0.5 vs control:1.5+0.5,P

[Summary] Postoperative cognitive dysfunction ( POCD) is a common central nervous system complication after anesthesia and surgery.The mechanisms of POCD are not clear yet.The article reviewed several potential mechanisms that have been reported. Further researches are needed to identify the pathophysiologic progress of POCD, which have great clinical and economic values.

0.05),but analgesia effect of total alkaloid surpassed total flavonoids distinctively(P

To reverse drug resistance mediated by the MDR1 gene product P-glycoprotein(P-gp) in tumor cells in a specific manner, a hammerhead ribozymes which can cleave the GUC sequence in codon 196 of MDR1 mRNA was designed and cloned into a recombinant retroviral vector pDOR-neo at BamH I restriction sites and packaged with packaging cell line PA317 cells.The viral supernatant was used to infect the multidrug-resistant human hepatocarcinoma cell line BEL-7402/DOX. After selection with G418,resistant colonies were obtained.Stable expression of retroviruses in both PA317 and infected BEL-7402/DOX cells was confirmed by Northern Blot hybridization. Down-regulation of P-gp and even of MDR1 mRNA was found in BEL-7402/DOX infected with ribozyme construct. The rate of BEL - 7402/DOX infected cell defected by flow cytometric analysis was 8.2 ~ 14.6% while in uninfected cell it was 93 .4 ~ 97.5% . The BEL-7402/ DOX cell infected with ribozyme construct was found back to drug-sensitivity to a series of drugs by MTT colorimetric assay . The results demonstrated that the recombinant retroviral vector expressing ribozyme transfecting human hepatocarcinoma BEL-7402/DOX could inhibit MDR1 gene expression and reverse tumor MDR phenotype back to drug-sensitive condition.

Objective To investigate the early effect of extracorporeal shockwave(ESW) treatment on distraction osteogenesis of rabbit tibias and its mechanism. Methods 30 adult New Zealand white rabbits were used. After osteotomy of left tibias, improved Orthofix M- 100 bone fixator was applied. After 5 days, bone lengthening of 1 cm was obtained over 10 days. Randomly the animals were divided into ESW and control groups. No ESW treatment was given to the control group. The shock wave was set at 0.54 mJ/mm2 and 1000 shots each time were applied to the central areas in the ESW group. Then the animals were divided into 3 sub- groups, and were killed respectively at 45, 60 and 75 days after osteotomy. During the process, X- ray, bone mineral density (BMD) and histological examinations were conducted for every animal. Results By X- ray and BMD measurements, we found significantly more bone mass increased in the ESW group than in the control group at 45, 60 days after operation (P