Objective To study acute toxicity of nanometer titanium dioxide to the liver and kidney of mice. Methods 20 KM mice (22-26 g) were randomly divided into two groups, the control group and the experimental group, TiO2 (20-30 nm) suspension (single dose of 5 g/kg body weight) was given to mice by a single oral gavage, the mice in the control group were given the physiologicalsaline. 14 days after the treatment, the mice were sacrificed and the serum were collected to evaluate the levels of ALT(alanine amino transferase), AST(aspartate aminotransferase), ALP(alkaline phosphatase), UA(uric acid), Cr(creatinine),BUN(blood urea nitrogen), CK(creatine kinase), LDH(lactate-dehydrogenase), ?-HBDH(alpha-hydroxybutyrate dehydrogenase), TBIL(total bilirubin levels). The tissues of the liver and kidney were excised and were embedded in paraffin blocks, hematoxylin-eosin (HE) staining for further histopathological diagnosis. Results The serum ALT, ALT/AST, BUN, LDH and ?-HBDH of the TiO2 group were statistically higher than those in the control group (P

Objective To study the determination of chromium in human hair by spectrophotometry using starch as color agent. Methods The total chromium(Cr)in human hair was oxidized by (NH4?雪2S2O3 into Cr6+,which could oxidize KI to form I-3 in acid medium. I-3 reacted with starch to form a blue colored complex,which revealed the maximum absorption peak at 590 nm. Results The contents of Cr in human hair were 8.46-29.56 ?g/g.The lowest detection limit and linear range were 0.02 and 0.02-1.0 ?g/ml respectively.The coefficient of variation and standard material-added recovery rates were 3.3% and 94.8%-104.5% respectively. Conclusion This methods was rapid,accurate and convenient for the determination of chromium in human hair.

Targeting the problem that it is difficult for traditional data management mode to effectively manage TCM information, this article analyzed from the aspect of object characteristics of TCM information resources and summarized that the reason lies in the TCM information resources with big data 4V features, proposed strategies for TCM information resource management based on big data technology, and expounded the feasibility.

0.05). Conclusions TNF-? and TGF-?1 had a very important role in etiology of chronic abacterial prostatitis and they can be the objective parameters in the diagnosis of chronic prostatitis.

ObjectiveTo investigate methods of early postoperative rehabilitation and its effects on patients with bicondylar tibial plateau fracture treated by modified dual plating.Methods66 patients with bicondylar tibial plateau fracture from Tianjin Hospital were divided into 2 groups according to the starting time for postoperative rehabilitation: early rehabilitation group (n=30), convalescents rehabilitation group (n=36). The two groups had the same treatment since the fourth week postoperative. Tibial plateau angle (TPA) and posterior slope angle (PA) of tibial plateau were measured to evaluate the stability of proximal tibial and knee alignment. The Hospital for Special Surgery (HSS) score system and knee joint range of motion (ROM) were used as the parameters for knee function.ResultsThe mean value of TPA and PA had no significant changes, compared to the final follow-up and postoperative X-ray films(P>0.05); the differences between the two groups were statistically significant in the mean HSS score and mean value of knee flexion and extention ROM(P<0.01 or 0.05). There was significantly positive correlation between starting time and the total number of treatment was significant(P<0.01), while negative correlation with flexion ROM of knee joint and the HSS score(P<0.01).ConclusionThe correlation between rehabilitation intervention timing and functional recovery for patients with bicondylar tibial plateau fracture treated by modified dual plating is significant, early individual and systematic rehabilitation therapy can effectively improve the prognosis features of patients.

Objective To investigate nursing effect of whole course nursing of CRRT for patients with heart failure.Methods 23 patients with refractory heart failure received 57 times of CRRT.They were randomly divided into control group and observation group.Control group with 30 patients received routine nursing in hemodialysis room while 27 patients in the observation group received the whole course nursing by the cardiovascular nurses and the hemodialysis room nurses. The quality of nursing and satisfaction of nursing during the nursing process in two groups were compared and evaluated.Results The score of nursing quality and satisfaction of patients in the observation group were remarkably higher than that in the control group(P <0.01).Conclusion The whole course nursing of CRRT for the patients with heart failure improves the quality of nurs-ing and satisfaction of patients,so it is conductive to the treatment and recovery of patients.

Objective To investigate nursing effect of whole course nursing of CRRT for patients with heart failure.Methods 23 patients with refractory heart failure received 57 times of CRRT.They were randomly divided into control group and observation group.Control group with 30 patients received routine nursing in hemodialysis room while 27 patients in the observation group received the whole course nursing by the cardiovascular nurses and the hemodialysis room nurses. The quality of nursing and satisfaction of nursing during the nursing process in two groups were compared and evaluated.Results The score of nursing quality and satisfaction of patients in the observation group were remarkably higher than that in the control group(P <0.01).Conclusion The whole course nursing of CRRT for the patients with heart failure improves the quality of nurs-ing and satisfaction of patients,so it is conductive to the treatment and recovery of patients.

Objective To explore the content of postgraduate courses in critical care nursing in TCM schools, and to offer a scientific basis for TCM schools to develop TCM-featured specialized courses. Methods On the basis of first-class and second-class indicators for course setting known through expert inquiry, totally 492 clinical nurses specialized in critical care nursing were inquired with questionnaires. The importance and reasonableness of course setting and teaching hours for the program of critical care nursing were then evaluated.Results Through survey and inquiry, the first three courses most badly needed among all the courses for critical care nursing were elective courses, which were Specialized Critical Care Nursing (4.80±0.67), Ventilator Therapy (4.80±0.40), and Critical Care Nursing Skills (4.73±0.46). They were all specialized courses with a reasonable duration of 72 teaching hours. Among the non-specialized courses, Basic Theory of TCM Nursing (4.44±0.51), Advanced Training of Medical Nursing Skills (4.40±0.67), Medical Research Methodology (4.34±0.73) and Evidence-based Nursing (4.24±0.67) were important. Conclusions The courses for Master of nursing specialist in TCM schools should pay attention to students' clinical application and highlight the professionalism and TCM features of critical care nursing. Meanwhile, evidence-based thinking, specialized English and research ability should not be ignored. And key points shall be stressed on in course setting and teaching hours.

OBJECTIVETo study the changes in activity of phosphatidylinositol 4 kinase (PI 4 kinase), phosphatidylinositol 4 phosphate 5 kinase (PIP 5 kinase) and protein kinase C (PKC) during myocardial ischemia and elucidate the relationship between phosphatidylinositol signal pathways and prolonged myocardial ischemia.

METHODSIn vivo an ischemic rat model was used. Activity of PI 4 kinase, PIP 5 kinase and PKC were measured at different times in postischemic heart cells using isotope analysis.

RESULTSThe activity of PI kinase, PIP kinase and PKC in the myocardium increased to peak at 1 hour postischemia, with activities 6.1, 3.0 and 4.0 fold over control levels, respectively. Their activities declined to normal levels with time.

CONCLUSIONThe phosphatidylinositol signal pathway is involved in prolonged myocardial ischemia, but its mechanism needs further study.

1-Phosphatidylinositol 4-Kinase ; metabolism ; Animals ; Male ; Myocardial Ischemia ; enzymology ; Phosphotransferases (Alcohol Group Acceptor) ; metabolism ; Protein Kinase C ; metabolism ; Random Allocation ; Rats ; Rats, Wistar ; Signal Transduction

Objective:To study the correlation between circulating tumor cells (CTC) and the degree of pathological invasion, recurrence and metastasis of urothelial carcinoma, and so to explore the clinical value of CTC detection in bladder cancer.Methods:A total of 142 patients with urothelial carcinoma in Huadong Hospital Affiliated to Fudan University were enrolled as cancer group from July 2016 to January 2018. According to the degree of tumor invasion, cancer group was divided into the non-muscle-invasive group (49 cases) and the muscle-invasive group(93 cases). In addition, 52 patients with benign urinary tract lesions admitted were selected as the benign group and 56 patients with non-urinary tract diseases and non-tumor as the control group. A total of 3.2 ml of venous anticoagulant blood from each subject was collected. CTC was enriched by negative enrichment using the magnetic beads coated with monoclonal antibody Cluster 45 of differentiation (CD45) to capture and remove white blood cells, and identified by chromosome 8 probe(CEP8) fluorescence in situ hybridization (FISH) technique. CD45-/4′,6′-diamidino-2-phenylindole+/CEP8>2(CD45-/DAPI+/CEP8>2) cells were judged as CTC. SPSS22.0 statistical software was used for statistical analysis.Results:≥2 CTCs/3.2 ml in blood was set as cutoff value. CTC positive rates in bladder cancer group, benign group and control group were 70.42%(100/142), 28.85%(15/52) and 8.93%(5/56), respectively, and there was a significant difference (χ 2=70.496, P=0.000). There was a statistically difference ( U=2 863.5, P=0.011) in the mean count of CTC(2 CTCs/3.2 ml vs 4 CTCs/3.2 ml) between the two groups. The proportion of≥5 CTCs/3.2 ml in the muscle-invasive group was 40.86% (38/93), which was significantly higher than that in the non-muscle-invasive group, 18.37% (9/49) (χ 2=7.330, P=0.007). Cystoscope follow-up of 65 patients treated with transurethral resection of the bladder tumor showed that the recurrence and metastasis rate in patients with≥5 CTCs/3.2 ml was as high as 47.62% (10/21), compared with 11.36% (5/44) of patients with<5 CTCs/3.2 ml (χ 2=10.530, P=0.001). Among 59 patients undergoing radical cystectomy, no significant difference was found in tumor diameter >3 cm, positive surgical margins and positive lymph nodes among all groups according to CTC negative or positive and CTC number ( P>0.05). But the recurrence and metastasis rate of patients with ≥5 CTCs/3.2 ml (59.10%) was significantly higher than that of patients with <5 CTCs/3.2 ml (6/30)(χ 2=8.364, P=0.004). Conclusion:The number of CTC increased with the deepening of tumor invasion; Tumor recurrence and metastasis increased significantly in the patients with ≥5/3.2 ml CTCs in blood.