The nutritive composition from tissues of Perinereisaibuhitensis was analyzed. The result indicated that there was 67. 43% amino acids and 14. 24% fatty acids in the tissues, a-mong them the EPA comprises 6. 5343% of the total fatty acids and the glutamic acid comprises 10. 288% of the whole tissues. In the meanwhile, the tissues also contains high content of trace elements, such as zinc, iodine, selenium as well as fibrinolytic enzymes and so on, showing a prospective application value in the future.

Active fractions were obtained from the c(?)amworm homogenate by reverse-phase concentration, gel filtration and affinity column chromatography. The MTS/PMS assay was used in the screening of antimicrobial peptide in vitro. The MTS/PMS assay and ELISAAFP method were combined to evaluate the effects of antimicrobial peptide on the proliferation and ?-fetoprotein secretion of HepG2 cells as well as on the proliferation of normal mouse osteoblast MC3T3-E1. The results showed that the purified antimicrobial peptide from clamworm Murphysa sanguinea was a constitutive basic protein with MW 8.1 kDa and pI 8.6, which showed inhibition effects on the proliferation and ?-fetoprotein secretion of HepG2 cells at different levels. These effects have a positive correlation with the concentrations of antimicrobial peptide. No obvious inhibition and damage effects were observed on the normal osteoblast.

Objective To determine whether cyclosporin A(CsA) could exert neuroprotective effects after diffuse axonal injury (DAI) in the rat. Methods Twenty four SD rats were randomly assigned into three groups: non injur group ( n =8); control brain injury group ( n =8), in which normal saline was given; and experimental group ( n =8), the injured rats were treated with CsA. The beam balance test device and Morris water maze were used to test for balance and cognitive performance. Results Control brain injury animals displayed severe defects in balance and cognitive performande after diffuse axonal injury. Compared with control brain injury animals, rats treated with CsA displayed better motor performance in beam balance tests and improved learning ability in the Morris water maze. Conclusions It is demonstrated that CsA exhibits substantial neuroprotective activity in a rat model of DAI. These findings support that CsA is a useful therapeutic agent in the treatment of DAI.

BACKGROUND: Wnt signaling pathways can stimulate the proliferation and differentiation of neural stem cel s, and promote the repair of spinal cord injury. The electrical field stimulation can change the protein expression of Wnt signaling pathways.
QBJECTIVE: To explore the influence of oscil ating electric field on motor function recovery and the expression of Wnt-3a protein in rats with spinal cord injury.
METHODS: A total of 36 Sprague-Dawley rats models with spinal cord injury were induced by the Al en’s method. Al rats were randomly divided into oscil ating electric field stimulation group and spinal cord injury group. The stimulating electrodes were added in both groups. The oscil ating electric field stimulation group received oscil ating electric field intervention.
RESULTS AND CONCLUSION: At 3 days after model establishment, Basso, Beattie, and Bresnahan (BBB) locomotor rating scale scores and Wnt-3a expression were similar between the oscil ating electric field stimulation group and spinal cord injury group. At 7 and 14 days, significant differences in BBB scores and Wnt-3a expression were detected. These results indicate that oscil ating electric field stimulation can activate Wnt signaling protein in the early stage of spinal cord injury, which may be associated with the promoting effect of oscil ating electric field stimulation on spinal cord injury.

Objective To investigate the influence of stroke volume variation (SVV)-guided fluid therapy on postoperative cognitive function in elderly patients undergoing the unilateral total knee arthroplasty(UTKA).Methods One hundred patients undergoing the UTKA were randomly di-vided into two groups,group A(SVV 4%-9%)and group B(SVV 10%-14%).The liquid manage-ment,serum markers (CRP,IL-6)and the incidences of deflating-tourniquet-related hypotension and preoperative, 5 d after surgery of the occurrence of POCD in two groups were recorded. Results There was no significant difference in general information between the two groups. Compared with group B,group A needed more fluid transfusion and had a higher 24 h urine volume. The CRP and IL-6 was significantly higher in group B than that in group A;The incidence of defla-ting-tourniquet-related hypotension in group A [22(44%)]was also lower than that in group B [43 (86%)].However,there was no significant difference in the incidence of POCD between the two groups.Conclusion Sufficient blood volume can help to reduce the incidence of deflating-tourniquet-related hypotension,and reduce the inflammatory reaction in elderly patients.

This paper introduces a free and publicly open ICU database: multi-parameter intelligent monitoring in intensive care II: MIMIC-II, which has been built up and maintained by the laboratory of computational physiology at the Massachusetts Institute Technology, Beth Israel Deaconess Medical Center and Philips Healthcare over the past decade. This paper briefly introduces its infrastructure, implementation and applications in clinical studies. Clinical study pertaining to circadian variation in heart rate and blood pressure during sepsis is shown as a typical example of research performed with MIMIC-II. In this study, it was found there was significant difference in circadian variation in both heart rate and blood pressure between survival and non-survival groups in septic patients. This study tackled several important techniques necessary for the investigation of the circadian rhythm.
Blood Pressure ; Circadian Rhythm ; Critical Care ; Data Mining ; Databases, Factual ; Heart Rate ; Humans ; Medical Informatics

To improve higher training quality and capacity of orthopedic postgraduates,early contact education,problem-base learning combined with co-supervisor with radiologists were engaged for orthopedic postgraduates since 2008.Effect of the practice was assessed by postgraduates one year later.Investigation revealed that practice aroused learning enthusiasm and initiative,promoted comprehensive understanding of orthopedic knowledge,set up social responsibility,and constructed innovative thinking.

OBJECTIVE To evaluate the cause of unqualified level of bacteria in dialysis fluid and to discover(available) resolution measure to select a batter aseptic sampling manipulation.METHODS Spot sampling in dialysis fluid with two methods A and B was used in a hemodialysis unit,1ml was taken to direct culture,and count the(colony).(RESULTS) The finding showed that the cause of unqualified level of bacteria in dialysis fluid focused in types Ⅲ and Ⅳ of(dialyzable) machine,and the average number of bacteria exceeding standard accounted for 18.48% with method B.CONCLUSIONS The contamination in dialysis fluid is related with dialyzable machine and manned(manipulation).

0.05),but it in thin nasal feeding tube group was significantly lower than that in the other two groups(P

Objective To analyze the clinical and radiological features of retroperitoneal fibrosis (RPF), and to deepen the understanding of this unusual disease and improve the diagnostic level at the early stage. Methods Fourteen cases (10 males and 4 females, mean age 45.8 years) of pathologically diagnosed RPF from January 1990 to June 2004 were summarized. The clinical and radiological performance of the cases were analyzed. All patients received non-contrast CT scanning, 10 of them underwent enhanced CT scanning as well. 8 patients received MRI, 10 patients received IVP examination, and 11 received B-ultrasound. Results (1)The very first symptoms usually included back pain, bellyache (10 cases), or urinary tract obstruction (3 cases), with increase of ESR, IgG, CRP value and abnormal renal function.(2)The result of radiological examination showed that 11 lesions of the 14 cases located at retroperitoneum. Ten cases were mass type and 4 cases were diffuse type. Non-contrast CT scanning revealed soft tissue mass at retroperitoneum with inhomogenous or homogenous density. After contrast medium injection the lesions were enhanced with different extent. MRI results showed that the lesions presented low signal in T_1WI, while in T_2WI the signals had no obvious coherence but were different from one case to another. Conclusion Radiological examination is one of the important methods for diagnosis of RPF. Based on the different characteristics of RPF in CT and MRI, together with the clinical findings, we will get valuable references for staging and follow-up of RPF.