Purpose To investigate the clinical value of MR PROSET technique in showing and diagnosing in lumbarsacral nerve root diseases.Materials and Methods Conventional MRI sequence and PROSET sequence coronal images were performed in lumbosacral nerve roots of 15 healthy volunteers and 47 low back pain patients,each case performed 3D maximum intensity projection (3D MIP) post-processed.Spinal nerveroots were observed.Results The PROSET could show dura,dura sheath,spinal nerveroot,ganlias,segments of the nerves posterior to the ganglions well and could be observed from multiple aspects by the 3D MIP.Among the 47 cases of luber nerve root disease,PROSET could show the level of the invasion and compression to the ganglias.Conclusion According to the PROSET technique and conventional MRI picture,can provide the satisfied proof to the diagnosis of lumbosacral nerve root diseases.

Objective To explore the role of monitoring the cellular immune function in preventing and treating the fungal infection in the recipients of liver transplantation. Methods 679 cadaveric liver transplantations (from Jan. 2004 to Jan. 2010) were retrospectively studied. All the cases were divided into 3 groups according to different treatments and preventing regimens. The patients in groups A, B, C were treated based on the clinical experiences (394 cases), T lymphocyte subsets counting (151 cases), and combination of ATP values of CD4+ T cell and T lymphocyte subsets counting (134 cases), respectively. The infection, mortality and acute rejection rate were analyzed. The relationship between fungal infection and cellular immune function was investigated.Results The fungal infection rate in groups A, B, and C was 28. 9 %, 21.2 %, and 19. 4 % (P<0. 05), the morbidity rate was 16. 7 %, 12. 5%, and 3. 8% (P>0. 05), and the acute rejection rate was 28. 4 %, 17. 2 %, and 13. 4 % (P<0. 01), respectively. The CD4+ T lymphocyte counting in all cases of fungal infection was (147±43)×106/L. The morbidity could reach 50. 0 % when the CD4+ T lymphocyte counting < 100 ×106/L, while it was 2. 4 % when the counting was between (100-200) ×106/L (P<0. 01). The CD4+ T lymphocyte counting had no linear relation with the ATP value.The ATP value in fungal infection cases was (117 ± 61)μg/L. Conclusion The cellular immune function test could be quantitatively evaluated according to the T lymphocyte subsets and ATP value of CD4+ T lymphocyte. And individualized immunosuppressive therapy could be adjusted accordingly.Therefore, cellular immune function could be instructive in preventing and treating the fungal infection after liver transplantation.

Epithelial-mesenchymal transition (EMT) refers to tne transition during which epithelial cells undergo the loss of apical-basal polarity, acquisition of migration capability and transformation into mesenchymal cells. EMT induces breast cancer in situ to developing into metastasis and associates with the drug resistence. The multiple elements including signal pathways, transcriptional factors and downstream genes orchestrate the transition. Among them, the transforming growth factor β (TGF-β) signaling pathway plays a key role in the regulation of EMT in breast cancer. And this paper reviews the development of TGF-β signaling pathway induced EMT in breast cancer.
Breast Neoplasms ; metabolism ; Epithelial Cells ; Epithelial-Mesenchymal Transition ; Humans ; Signal Transduction ; Transcription Factors ; Transforming Growth Factor beta ; physiology

The paper aims to explore the studying method for the pharmacokinetics of drugs in target organs, the pharmacokinetic process of tramadol hydrochloride in the extracellular fluid of frontal cortex (FrCx) of mice was investigated. Six male mice (Kunming strain) were anaesthetized (urethane, 1.8 g x kg(-1), ip) and secured on a stereotaxic frame. A microdialysis probe was implanted into the FrCx and perfused with artificial cerebrospinal fluid at a flow rate of 2 microL x min(-1). One hour later, mice were administrated (ip) with tramadol hydrochloride (50 mg x kg(-1)) and dialysates were collected continuously at 12-min intervals (24 microL each) for 6 h. The tramadol concentration in dialysates was determined by HPLC-Ultraviolet detection method, and the concentration-time curve and pharmacokinetic parameters of tramadol were calculated with DAS software. The results showed that the pharmacokinetic process of tramadol in the FrCx extracellular fluid of mice was fitted to a two-compartment open model, and the main pharmacokinetic parameters t1/2alpha, t1/2beta, t(max), C(max) and AUC(0-infinity) were (0.27 +/- 0.05) h, (2.72 +/- 0.24) h, (0.50 +/- 0.10) h, (2 110.37 +/- 291.22) microg x L(-1) and (4 474.51 +/- 441.79) microg x L(-1) x h, respectively. In conclusion, a studying method for pharmacokinetics of drugs in the target organ is established, which is simple and feasible. Tramadol hydrochloride shows a two-compartment model in the extracellular fluid of the mouse FrCx, and the distribution- and elimination half-life are 0.5 h and 2.7 h, respectively.

Objdcts: To survey the mental health status of patients suffered from mammary gland cancer and the influence facts.Methods:Adopt SLC-90 sheet and questionaire of influence for basic status of mental health,to survey the mental health character and influence facts of 50 patients suffered from mammary gland cancer,contrasting with 50 healthy women.Results: The SLC-90 Summation of the patients are obviously higher than that of healthy women,P

Objective To evaluate the sleep characteristics of the Korean children,and explore the measurement of improving the sleep qua-lity of minority nationality children.Methods The sleep time of 1 183 from 3 to 12 years age Korean children were investigated with questionnaire The sleep time of korean children in different ages and cities were compared.Results The mean time of total sleep time in Korean children was(10.06?1.29) h,which was decreasing with the age′s increasing.The difference in different ages groups was remarkable(Pa

Objective To preliminarily evaluate the efficacy and safety of chemotherapy on hemophagocytic lymphohistiocytosis(HLH) with hepatic dysfunction in children.Methods The children diagnosed as non-malignancy-associated HLH from Mar.2004 to Apr.2008 were selected,and the therapeutic effect was evaluated according to the HLH-04 protocol at the 8th week of chemotherapy,and the level of serum alanine aminotransferase(ALT),serum albumin(Alb) and plasma fibrinogen(Fib) were detected at pretherapy,2 weeks and 8 weeks of post-treatment.Results Altogether 60 HLH children complicated with hepatic dysfunction before chemotherapy,47 children had increased ALT,58 children had decreased Alb,and 38 children had decreased Fib.Forty-two cases(70%) were virus-associated HLH,1 case(1.7%) was fungi-associated HLH,and 17 cases(28.3%) had unknown origin.Among the 60 children,55 cases showed improvement in the 4 weeks of inductive treatment,15 cases gave up therapy,45 cases completed the 8 weeks of inductive treatment according to the protocol(among these children,42 cases had no active disease,3 cases had active disease),and these 45 children had obviously improved ALT,Alb and Fib at 2 weeks and 8 weeks of post-treatment,compared with pretherapy,the differences had statistical significance(Pa

Epithelial-mesenchymal transition (EMT) refers to tne transition during which epithelial cells undergo the loss of apical-basal polarity, acquisition of migration capability and transformation into mesenchymal cells. EMT induces breast cancer in situ to developing into metastasis and associates with the drug resistence. The multiple elements including signal pathways, transcriptional factors and downstream genes orchestrate the transition. Among them, the transforming growth factor β (TGF-β) signaling pathway plays a key role in the regulation of EMT in breast cancer. And this paper reviews the development of TGF-β signaling pathway induced EMT in breast cancer.

42 cases of OSCC and 20 of healthy tissues were studied to detect the expression of NIMA-related Kinase 2(NEK2)mRNA by Real-time PCR.Over expression of NEK2 mRNA was observed in OSCC (z =-6.328,P <0.05),the expression was correlated with the differentiation (z =-5.012,P <0.05)and clinical stage (z =-4.950,P <0.05)of the lesion,but not with the lymph node metastasis (z=-0.051,P >0.05),age (z =-0.365,P >0.05)and gender (z =-3.450,P >0.05).NEK2 gene may be involved in the develop-ment of OSCC.

Objective To determine the effect of heat and noise on erythrocyte memb rane ATPase activities in pilots during flying. Method Twenty- four pilots per forming bombing for 3h (45～53℃, 122～97dB in the cabin) served as the su bjects . 21 ground personnel served as control (27℃ in the room). Blood samples were t aken from both groups before flying (6:00 a.m), and immediately (12:00 a.m.) and 8h (8:00 p.m.) after flying. Na+-K+ATPase, and Ca2+-Mg2+ATPase activities in erythrocyte membran e were determined with colorimetry. Result The Na+-K+ATPase activity in eryth rocyte membrane at 6:00 a.m.in pilots was higher than that in control group at the s ame time (P<0.01). The Ca2+-Mg2+ATPase activities in erythrocyte membrane at 12:00 a .m. and 8:00 p.m. in pilots were significantly higher, compared with those in co ntrol group at the same time (P<0.01). Conclusion The ATPase values obtained in our study were all within normal range, and the daytim e variation of both groups are the same. Exposure of human body to heat and noi se for long time may be harmful, the higher ATPase activity is, the more catabol ism of ATP will be. ATP exhaustion will lead to Ca2+ overload in erythrocy te thus stiffen the red cell membrane.