Objective To investigate the effect of Dectin-1 on the release of inflammatory factors interleukin-10 (IL-10) and tumor necrosis factor-α (TNF-α) in rat tracheal epithelial cells (RTECs) stimulated with heat-treated Candida glabrata (C.glabrata).Methods RTECs cultivated in vitro were randomly divided into three groups,including control group(RTECs + sterile normal saline),fungal stimulation group(RTECs + heat-treated C.glabrata),and inhibitor intervention group(RTECs + laminarin + heat-treated C.glabrata),cells were harvested after incubation for 0,2,4,6 hours respectively,cell survival rate was determined by MTT method,expression of Dectin-1 was analyzed by Western Blot,expression of IL-10 and TNF-α were detected by enzyme-linked immunosorbent assay (ELISA).Results Heat-treated C.glabrata destroyed cell structure and reduced cell survival rate.At the beginning of the culture (0 h),cell survival rate,expressions of Dectin-1,IL-10 and TNF-α among three groups were all not significantly different(all P＞0.05).After incubation for 2,4,6 hours,expressions of Dectin-1,IL-10 and TNF-α in fungal stimulation group and inhibitor intervention group were both significantly higher than control group;expressions of Dectin-1,IL-10,and TNF-α in inhibitor intervention group was lower than fungal stimulation group(all P＜0.05).The expressions of IL-10 in inhibitor intervention group at 0 h and 2 h was not significantly different,expressions of Dectin-1,IL-10,and TNF-α in fungal stimulation group and inhibitor intervention group at different incubation periods were significantly different(all P＜0.05).Conclusion Dectin-1 is an important receptor for RTECs to recognize the heat-treated C.glabrata,it induces the release of IL-10 and TNF-α,and mediate the occurrence of inflammation.

The traditional view of bacterial life cycle consists of four phases,namely,lag phase,exponential or logarithmic phase,stationary phase and death phase.Although the standard textbook description of the bacterial life cycle has been useful,might not always provide us the whole visage of bacteria growth process.Recently,it has demonstrated that bacterial life cycle is expanded to five phases.It is a significant different growth phase after death phase:long-term stationary phase,which may be more akin to the nature environment in which microorganisms exist.Microbial cells survive due to mutating,and forming growth advantage during stationary phase (GASP) phenotype in this phase.It is very important for further study the microorganisms in this phase.

Objective To detect the expression of CK19 in sentinel lymph node for breast cancer and to evaluate its clinical significance.Methods SLNs of 30 patients with breast cancer were successfully detected with methylene blue,both SLN and ALN were examined by hematoxylin and eosin staining ( HK staining). The expression level of CK19 in SLNs were assessed by RT-PCR and Western Blot for mRNA and Protein respectively. Results Detection positive rate of SLN melastases was 26. 67% (8/30) by HE staining,and 1 case of false negative. Through RT-PCR,12 cases,including all the positive cases detected by routine pathological examination,were detected to be positive in the expression of CK19mRNA, with a positive rate of 40. 0% ( 12/30) , and a positive rate of 36. 67% (11/30) for CK19 was observed by Western Blot There was a significant difference between RT-PCR or Western Blot methods and routine pathological examination ( P < 0.05 ) for the detection efficiency of SI.Ns melastases. Conclusions CK19rnRNA may be a potential tumor marker for detecting micrometastasis in SLNs of breast cancer. The combined utilization of locating SLNs and detecting CK19 mRNA expression by RT-PCR instead of histopathological examination can greatly enhance the detection efficiency of SLN micrometastasis of breast cancer.

Objective To explore the relationship between adjustment of immunosuppressant and prognosis in renal transplantation recipients with pulmonary infection. Methods The clinical data of 98 patients with pulmonary infection following renal transplantation were retrospectively analyzed.Patients were divided into two groups: conventional group (n = 45) and immunosuppressant adjustment group (n = 53). The mortality, recovery time and rejection rate in two groups were analyzed under the statement of serious infection (SOFA≥12) and slight infection (SOFA＜ 12) by sequential organ failure assessment (SOFA) score. Results When the SOFA scores ≥ 12, the mortality and recovery time in immunosuppressant adjustment group were significantly lower than in conventional group (P＜0.05), but there was no significant difference in the rejection rate between two groups (P＞0.05). When the SOFA scores ＜11, there was no significant difference in mortality and recovery time between the two groups (P＞0.05). The incidence of rejection in immunosuppressant adjustment group was significantly higher than in conventional group (P＜0.05).Conclusion Mortality could be decreased and course of anti-infection treatment could also be shortened by adjusting the immunosuppressant in renal transplantation recipients with serious pulmonary infection (SOFA≥12). Immunosuppressant agent was proposed to maintain the original treatment protocol when the infection was slight (SOFA＜12).

Objective To investigate the alteration of the whole brain functional connectivity in patients with minimal hepatic encephalopathy(MHE) by using resting-state functional MRI,and to explore its role in distinguishing the MHE from cirrhotic patients without MHE by using the receiver operator characteristic(ROC) curve.Methods Thirty cirrhotic patients with MHE,32 cirrhotic patients without MHE (non-MHE),and 49 healthy controls underwent standard resting-state functional MRI scan.Whole brain functional connectivities were compared with analysis of variance test to observe the difference among three groups,and then compared with Post-hoc test to investigate the changes between MHE and non-MHE groups.Results There were widespreadly different functional connectivities among three groups.All 115 functional conenctivities showed significant difference among three groups(all P＜0.05).Compared with non-MHE patients,MHE patients showed 6 decreased functional connectivity in the following brain regions (P＜0.05):between left supper temporal gyrus-right orbitofrontal cortex,left Heschl's gyrus-left Rolandic operculum,left Heschl's gyrus-right olfactory cortex,left hippocampus-right amygdala,left putamen-right putamen,and left temporal pole of supper temporal gyrus-right temporal pole of middle temporal gyrus (t=-4.41-3.82,P＜0.01).ROC analysis demonstrated that the left hippocampus-right amygdala had the highest value for differentiating MHE from non-MHE group(AUC=0.78,95％CI 0.66-0.90) with a cutoff value=0.56,sensitivity=73％ and specificity=81％).Conclusion Functional connectivity analysis can be used to observe the functional changes in MHE patient,and has a potential for the early diagnosis of MHE.

Objective To investigate the mechanisms modulating the functions of dendritic cells (DCs) and suppressing the activation and proliferation of T cells by transforming growth factor-β (TGF-β).Methods Mouse splenic DCs were purified with CD11c+ immunomagnetic beads and the purity of isolated DCs were detected by flow cytometry.Gene chip was used to detect gene expression in DCs after stimulation with TGF-β, and then real-time PCR was performed to analyze the differentially expressed genes in microarray at mRNA level.The activation and proliferation of CD4+ T cells which were co-cultured with DCs after stimulation with TGF-β were detected by flow cytometry.Results The purity of DCs reached over 95% after isolation.TGF-β down-regulated the expression of cell surface markers CD53, CD69, CD33, CD74 and CD93 on DCs;decreased the expression of chemokines Ccl3, Ccl5, Ccl9, Ccl6, Ccl17, Cxcl10, Ccl22, Ccl4, Ccr7, Ccl2, Cxcl9 and Ccl7;inhibited the expression of inflammatory cytokines IL-2ra, IL-12rb2, IL-15ra, IL-1b and IL-15.Moreover, the DCs-mediated activation and proliferation of CD4+ T cells were suppressed by TGF-β.Conclusion TGF-β inhibits the DCs-mediated activation and proliferation of CD4+ T cells by suppressing the expression of surface markers on DCs and down-regulating the expression of chemokines and inflammatory cytokines.

ObjectiveTo evaluate the feasibility of gadolinium-enhanced dual energy CT pulmonary angiography (CTPA) in detecting pulmonary embolism (PE).MethodsIn vitro dual energy CT of phantoms of gadolinium and iodinated contrast agents with different diluted ratio was performed,and CT values were measured at different tube voltages.Ten rabbits which were grouped into 3 ml/kg and 5 ml/kg groups underwent dual energy CT scan.CT values of pulmonary artery trunk and the first branch of pulmonary artery were measured.Sponge gelatin were injected into the femoral vein of 6 rabbits to make PE model next day,then lungs were re-imaged with dual energy CT 2 h after embolization.Creatinine was repeatedly measured before and one day after injection of gadolinium via ear marginal vein or femoral vein sampling.One-way ANOVA test and independent student t test were used to analyze the difference of pulmonary artery enhancement between different groups.Results ( 1 ) Compared with iodinated contrast agent,CT value of gadolinium-based contrast agent at 80 kV was higher than those at 140 kV and averageweighted 120 kV.(2) At 140,80,and average weighted 120 kV,CT values of pulmonary artery trunk [CT values were (463.1 ± 118.0),(664.2 ± 188.0),(522.9 ± 137.7) HU] and of the first branch of pulmonary artery [ CT values were (445.1 ± 82.3 ),(606.7 ± 207.2),(493.4 ± 117.3 ) HU ] were higher than those at 3 ml/kg [ CT value of pulmonary artery trunk was ( 258.1 ± 55.1 ),( 384.0 ± 92.3 ),(295.4 ± 73.6) HU,CT value of the first branch of pulmonary artery (245.0 ± 73.2 ),( 309.1 ± 94.2),(263.8 ±78.5) HU;all P ＜0.05].CT values of pulmonary artery trunk and the first branch of pulmonary artery at 80 kV were higher than those at 140 kV and average-weighted 120 kV ( pulmonary artery trunk:F =6.004,P =0.005 ; the first branch of pulmonary artery: F =4.374,P =0.018).In 6 rabbits,CTPA showed the enhancement cut-off of bilateral pulmonary arteries,gadolinium mapping showed decreased perfusion in the corresponding lung lobes,manifested as blue on color-coded map,while normal lung was color coded as red or yellow.Creatinine was higher by 6.7％ and 20.6％ for group 3 ml/kg and 5 ml/kg.ConclusionsWith similar X-ray attenuation characteristics as iodine,gadolinium-based contrast agent can be used to pulmonary contrast-enhanced dual energy CT imaging,simultaneously providing both CTPA and gadolinium maps to detect PE.

Objective To study hemodynamics of cerebral blood flow in newborns with asphyxia.Method Bilateral cerebral electrical admittance plethysmogram(BCEAP) was used to explore characteristics of cerebral blood flow in 20 healthy newborns and 20 newborns with asphyxia respectively from first to fourth day after birth.Results Both the ratio of Hs to b-S(Hs/ b-S) and index of admittance differential loop(ADL) Ⅰ+Ⅱ decreased significantly in newborns with asphyxia compared to normal control from first to fourth day after birth(P

OBJECTIVETo investigate the application of Koyanagi technique for repairing proximal hypospadias with penoscrotal transposition.

METHODSKoyanagi procedure was used for repairing proximal hypospadias with penoscrotal transposition in 26 boys (mean age 4.2 years) between July 2005 and June 2010.

RESULTSPrimary healing was achieved in 22 cases. Three patients suffered from urinary fistula and the external urethral orifice in one patient was retracted to penis coronary sulcus, who were re-operated successfully. Two cases showed slight penile ventral curvature. Slight stricture of the urethral external orifice was noted in one case, which relieved after one to two times of urethral sounding every week for eight months. 20 patients were followed up for 6-36 months (mean 10.5 months) with good cosmetic result and normal urethra function. The penoscrotal transposition was also corrected.

CONCLUSIONSThe original Koyanagi procedure might be one of the simple and effective method for repairing proximal hypospadias with penoscrotal transposition.

Abnormalities, Multiple ; surgery ; Child ; Child, Preschool ; Free Tissue Flaps ; Humans ; Hypospadias ; surgery ; Male ; Penis ; abnormalities ; surgery ; Reconstructive Surgical Procedures ; methods ; Scrotum ; abnormalities ; surgery ; Urethra ; surgery ; Urethral Diseases ; surgery ; Urologic Surgical Procedures, Male ; methods

In this paper, a three-dimensional precise conformal radiotherapy treatment planning system based on a cobalt-60 teletherapy unit is introduced. With the help of additional precise target localization and conformal field-shaping devices, the TPS can greatly improve the performance of conventional cobalt-60 teletherapy units in precise target localization, radiotherapy planning and dose delivery. The clinical practices show that the TPS has advantages of reliable precision and an affordable price , and it is urgently needed in our country.
Cobalt Radioisotopes ; Equipment Design ; Imaging, Three-Dimensional ; Radiotherapy Planning, Computer-Assisted ; methods ; Radiotherapy, Conformal ; instrumentation ; methods ; Research Design