Objective To investigate the effect of tumor necrosis factor-α (TNF-α) on the levels of ezrin-radixin-moesin (ERM) proteins and the phosphorylated ERM proteins (p-ERM) in rat pulmonary microvascular endothelial cells (PMVEC),and to explore Rho kinase (ROCK) influencing on modulation of the ERM proteins phosphorylation.Methods Cultured rat pulmonary microvascular endothelial cells were randomly divided into dose-dependent and time-dependent groups.In dose-dependent group,cells were cultured with different doses of TNF-α (0,0.1,1,10 μg/LTNF-α) for 60 min.In time-dependent group,cells were cultured with TNF-α (10 μg/L) for 0,15,30,60,90,120,180 min.In ROCK inhibitor (Y27632) intervention group,cells were cultured with TNF-α (10 μg/L) or Y27632 (30 μmol/L) + TNF-α (10 μg/L) for 60 min respectively.The levels of ERM proteins and p-ERM were determined by western blot.One way analysis of variance (ANOVA) was employed for statistical analysis by using SPSS version 16.0 software to compare values among all groups.A significant difference was presumed as a P value ＜ 0.05.Results Western blot revealed that ERM and p -ERM proteins were present in rat PMVEC.Stimulation withTNF-α gradually up-regulated the level of pERM proteins in a dose-dependent manner [0 μg/LTNF-α group:(0.648 ± 0.102),0.1 μg/LTNF-αgroup:(0.728-±0.082),1 μg/LTNF-α group:(0.926±0.121),10 μg/LTNF-α group:(1.245 ±0.134),all P =0.000].In time-dependent group,the level of p-ERM proteins rose at 15 min (0.777 ±0.151),peaked at 90 min (1.295 ±0.176),then decreased gradually at 120 min (0.802 ±0.139),but stayed higher level at 180 min (0.669 ±0.128) than that in un-stimulated 0 min group (0.631 ±0.123,P=0.004,0.000,0.001,0.016,respectively).When PMVEC pre-incubated with ROCK inhibitor and TNF-t,the level of p-ERM proteins caused a marked attenuation of TNF-αstimulation [(0.634 ± 0.112) vs.(0.875 ± 0.164),P =0.002],however,there are no significant differences compared to ROCK inhibitor alone group (0.661 ± 0.108) and no intervention group (0.654 ± 0.125),P =0.973,P =0.900,respectively).Conclusions TNF-α could induce up-regulation of the level of the phosphorylated ERM proteins in rat PMVEC,and ROCK signal molecules might involve in modulation of the ERM proteins phosphorylation.

【Objective】 To observe the promoting action of spleen-strengthening and Qi-promoting herbs on enteral nutrition(EN) for patients after abdominal surgery.【Methods】 Sixty patients after abdominal surgery were equally randomized into groups A and B.The two groups received oral use or tube feeding of enteral nutrition(Fresubin).Group A received oral use or tube feeding of the decoction with spleen-strengthening and Qi-promoting actions(composed of Radix Pseudostellariae,Rhizoma Dioscoreae,Fructus Hordei Germinatus,Pericarpium Citrus Reticulata,Radix Notoginseng) additionally.The treatment lasted one week.Before and after EN treatment,the contents of hemoglobin(Hb),total lymphocyte count(TLC),albumin(Alb),serum total protein(TP) and the ratio of albumin and globumin(A/G) were observed.【Results】After EN treatment,the above laboratory parameters were increased in the two groups as compared with those before treatment(P

Objective To establish the acute hind limb ischemia on Wistar rat with diabetes mellitus.MethodsThirty diabetes rats were induced by intraperitoneal STZ (50 mg/kg) injection, as well as the blood glucose level tested over 16.8 mmol/L. The rats were ligated on the left femoral artery, then the blood perfusion on the hind limbs ischemia was measured by LDPI after the operation. Results The fasting plasma glucose level on 22 Wistar rats(81.5%) was kept above 16.8 mmol/L, and the hind limb blood perfusion would recover slowly to the level of the right side from 1 to 14 day (P

Objective To learn the psychological needs of the hospital staff in terms of their life,medical care and psychological health.Methods 2910 hospital staff were interviewed with questionnaires and the outcomes analyzed with x2 test and descriptive analysis.Results 96.9％of the surveyed found themselves in need of psychological counseling; considerable consulting needs of the staff; most of them turn to friends to complain instead of their leaders.Conclusion The psychological counseling should be enhanced to build effective communication channels and ease stress of the staff.

Microcapsule technology recently has been applicated and developed in pharmaceutical,chemical,food and so on.The achievments have been obtained on the novel technics of microcapsulation,analytical methods of microcapsule characteristics,and methods of characterization for the appearance and porous structures of microcapsules.The novel developments on the structure and property of microcapsules were reviewed.

Objective To investigate the effect of chymase on the proliferation of rat cardiac fibroblasts (CFs) and the role of transforming growth factor-?1 (TGF-?_1).Methods Cultured CFs of neonatal SD rats were isolated by trypsinization.Cell number and DNA synthesis were evaluated by MTT assay (A_(490) value) and [~3H]-deoxythy- midine [~3H]-TdR incorporation.The mRNA expression of TGF-?_1 in CFs was determined by RT-PCR.Results Chymase increased CFs numbers and [~3H]-TdR incorporation in a dose-dependent manner.The A_(490) value of CFs stimulated by 15,30 and 60 ng/mL chymase was 0.263?0.033,0.348?0.031 and 0.387?0.026,respectively, which were all significantly higher than that of control (0.201?0.019,P

Adult ; Colon, Transverse ; pathology ; Hernia, Diaphragmatic ; pathology ; Humans ; Male ; Respiratory Insufficiency ; pathology ; Spleen ; pathology ; Stomach ; pathology

Congenital Abnormalities ; epidemiology ; Hospitals ; statistics & numerical data ; Humans ; Population Surveillance ; methods

Objective To investigate the secretory capacity and apoptosis of interleukin ( IL)-21 induced normal B cells by co-culture with serum from patients with systemic lupus erythematosus (SLE). Methods Serum from twenty new-onset SLE patients and 20 healthy donors were collected .CD1+9 B cells from the normal controls were co-cultured with serum from SLE patients in the presence or absence of IL-21-R-FC(4 μg/ml).Supernatant IgG and IgM concentration were measured by immunoturbidimetric assay on day 5.Supernatant anti-dsDNA level was determined by ELISA .The percentage of apoptotic cells was detected by flow cytometer.Results IgG,IgM and anti-dsDNA levels in normal B cells with SLE serum were significantly higher than those in the serum of SLE patients alone [ ( 5.84 ±1.79 ) g/L vs ( 4.25 ± 1.48)g/L,P=0.000;(0.46 ±0.21)g/L vs (0.43 ±0.21)g/L,P=0.003;(127.76 ±70.24)IU/ml vs (115.15 ±63.88) IU/ml,P=0.014 respectively].However, no significant differences were found in the group of normal B cells with non-homologous serum from normal controls (P>0.05).Supernatant IgG, IgM and anti-dsDNA levels in normal B cells with SLE serum significantly decreased while IL-21R-fusion protein was added [(5.26 ±1.62)g/L vs (5.84 ±1.79)g/L, P=0.006;(0.42 ±0.20)g/L vs (0.46 ±0.21)g/L, P=0.002;( 118.00 ±69.62 ) IU/ml vs ( 127.76 ±70.24 ) IU/ml, P =0.012 respectively ] .The apoptotic rate of B cells with SLE serum was significantly higher than that with normal serum [ ( 47.88 ± 12.65)%vs (38.86 ±10.32)%,P =0.004].But adding IL-21R-fusion conversed the apoptotic rates [(42.08 ±12.52)%vs (47.88 ±12.65)%,P=0.001].Conclusions SLE serum could induce normal B cells to form immunoglobulin secreting cells and producing autoantibodies , or apoptosis in pathological conditions.IL-21 might be considered as a potential therapeutic target of SLE .

Objective To compare dose-volume parameters for local failure in esophageal cancers treated by there-dimensional conformal radiotherapy (3 D-CRT) or intensity modulated radiotherapy (IMRT) with different target regions.Methods A total of 244 patients with esophageal cancer (including 127 patients with local recurrence and 117 without recurrence) underwent radical 3D-CRT and IMRT were enrolled in this study.Data including dose-volume parameters and clinical features were analyzed retrospectively.Results No statistically significant differences were found in the dose-volume parameters of different planning target regions between groups with local tumor recurrence and without recurrence (P ＞ 0.05).In the elective nodal irradiation(ENI) group, neither the recurrence and the non-recurrence groups showed statistical differences in the dose-volume parameters (P ＞ 0.05).While for the involved-field iradiation(IFI) group, the GTV-V60, CTV-V60, PTV-V60 of local recurrent group were significantly lower than those in the non-recurrent group (t =-2.08,-2.19,-2.08, P ＜ 0.05).In the ENI group, radiated doses of GTV, CTV and PTV as well as dose-volume of PTV were significantly higher than the IFI group (t =1.97-3.12, P ＜ 0.05).For patients with a esophageal GTV less than 30 cm3 but without concurrent chemotherapy, radiated dose of CTV-D98％ , CTV-D95％ in the recurrent group were significantly lower than in non-recurrent group (t =-2.24--2.07, P ＜ 0.05).Conclusions Elective nodal prophylactic radiation of esophageal carcinoma could provide greater volume and doses of GTV, CTV and PTV to prescribed target regions, which may decrease local recurrence.Greater efficiency can be obtained when the primary lesion of the esophageal cancer is smaller or at an early stage, and concurrent chemotherapy is not given.