Objective To investigate the relationship of the serum level of IL-23 and MMP-9 with the clinicopathologic features in patients with esophageal squamous cell carcinoma (ESCC). Methods 48 pathologically confirmed ESCC patients and 30 Endoscopic biopsy of benign were included in this study. The serum levels of IL-23 and MMP-9 were examined by enzyme-linked immunosorbent assay (ELISA). Results Serum IL-23 level in patients with ESCC was significantly higher than that in controls (t = 26.66, 16.89, P<0.05). Furthermore, Pearson′s correlation analysis revealed that serum IL-23 was positively correlated with the serum MMP-9 level in ESCC patients (r = 0.790, P < 0.05). Statistical analysis showed that enhanced serum IL-23 significantly correlated with the degree of differentiation and lymph node metastasis. Conclusion Overexpression of IL-23 may involve in the occurrence and development of ESCC. IL-23 may contribute to tumorinvasion and metastasis by stimulating the expression of MMP-9.

Object To investigate the pharmacokinetic parameters of Musk Protecting Heart Pellets with pH-dependent gradient-release (MPHP-pH) and Musk Protecting Heart Pills (MPHP). Methods The cardiac muscle nutritional blood flow in rat was measured as effective index. Results It was one-compartment model when the rat was ig MPHP. The minimal effecting dose was 0.54 mg/kg, the present half-life, the elimination half-life, medicinal effect and the peak time of effective action were 0.53, 1.21, 3.48 and 1.13 h, respectively. The absorption half-life, elimination half-life and peak time of effective dose were 0.23, 1.47 and 0.88 h, respectively. Statistical moment analysis showed that the mean residence time mean residence time (MRT) of effective action were 5.05 h for MPHP-pH and 2.33 h for MPHP, the MRT of effective dose were 7.70 h for MPHP-pH and 3.21 h for MPHP. The relative bioavailability of effective dose for MPHP-pH was 104.03%. Conclusion MPHP has the characteristics of fast absorption, fast eliminationand short effective action time. Whereas MPHP-pH has the characteristics of fast absorption, protonged and relaxed effective action compared with MPHP.

Objective To explore the effect of electroacupuncture at Quchi (LI11) and Zusanli (ST36) acupoints on motor behaviors, the axonal integrity and nerve bundle of motor cortex and striatum in rat model of ischemic stroke induced by middle cerebral artery occlusion (MCAO) using diffusion tensor imaging (DTI). Methods Thirty-six adult male Sprague-Dawley rats were randomly assigned to sham opera-tion group (sham group), ischemia control group (model group) and electroacupuncture treatment group (EA group) with twelve rats in each group. The later two groups were occluded their middle cerebral arteries for two hours. Twenty-four hours after modeling, EA group re-ceived electroacupuncture at Quchi (LI11) and Zusanli (ST36) acupoints on the paralyzed limb, once a day, for 14 days. They were assessed with modified Neurological Severity Scores (mNSS) and Rota-rod test, and scanned with small animal magnetic resonance imaging system for T2-weighted image (T2WI) and DTI, the infarct size, related fractional anisotropy (rFA) and related number of tracks of motor cortex and striatum were recorded. Results Compared with the sham group, the score of mNSS increased in the model group and EA group after model-ing, and was lower in EA group than in the model group seven days and 14 days after intervention (P<0.05). Rota-rod test showed that the retention time was significantly longer in EA group than in the model group (P<0.05). T2WI showed that the infarct size was smaller in EA group than in the model group (P<0.05). DTI showed that rFA in motor cortex and striatum was higher in EA group than in the model group (P<0.05), as well as the related number of tracks (P<0.05) in motor cortex. Conclusion Electroacupuncture at Quchi and Zusanli acupoints could improve the motor function in rats with ischemic stroke, which may be related to the recovery of nerve bundle of motor cortex and stri-atum in ischemic side.

Objective To investigate the factors related to death of thoracic trauma emergency in children.Methods Total 528 children and infants aged 0-14 years with thoracic injuries , including 317 boys and 211 girls, admitted in emergency department from January 2010 to January 2014 were included in the study.The factors related to emergency death were investigated by using conditional logistic analysis.Results Among 528 cases, emergency death occurred in 34 cases with an emergency mortality rate of 6.44%.Single-factor analysis showed that emergency death was correlated with complication with other organ trauma, the time of first medical intervention , the time of arriving at first contact hospital , the rank of first contact hospital , hypoxemia and causes of injuries ( all P<0.05 ); however , not correlated with the gender, age, of patients, areas of residence, family economic status and seasons of injury occurring (all P>0.05).Logistic analysis showed that the time of first medical interventio n>30 min ( B=1.467,95%CI:0.412-0.975), complication with other organ trauma (B=2.342,95%CI:0.415-0.943), hypoxemia (B=2.915,95%CI:0.749-0.819), and first visiting to tertiary hospital (B=-1.861,95%CI:1.023-1.742) were influencing factors of emergency death.Conclusion The results indicate that to improve the success rate of emergency treatment of thoracic trauma in children , it is necessary to reduce the time of first medical intervention and to correct the hypoxemia promptly.

Objective To evaluate the theraputic effect of transcatheter arterial chemoembolization (TACE)for hepatocellular carcinoma with tumor thrombosis of portal vein.Methods One hundred and six patients of hepatocellular carcinoma with tumor thrombosis of portal vein under treament of TACE were observed before and after the procedure.Results After TACE tumor size reduced＞50% in 23 patients,＜50% in 25, no significant change in 44.The size of tumor enlarged in 12.The disappearance of portal vein tumor thrombosis accessed in 14,with reduction in 39,and no significant change in 51.Two patients died within one week.Conclusion TACE provides good therapeutic effect on hepatocellular carcinoma with tumor thrombosis of portal vein.

Objective To investigate the effect and mechanism of hydrogen sulfide (H2S) on kidney injury induced by urinary-derived sepsis. Methods Rabbits were randomly divided into Control group, Sham group, Sepsis group, NaHS 2.8μmol/kg group and NaHS 8.4μmol/kg group. Upper urinary tract obstruction and acute infection was induced to estab-lish Sepsis model. At 24 h before surgery, and 24 h, 48 h, 72 h after surgery, blood was taken to examine white blood cell count (WBC), creatinine (Cr) and blood urea nitrogen (BUN). At 72 h after surgery, morphological changes were observed by HE staining and transmission electron microscopy. Immunohistochemical staining was used to detect TNF-α, IL-10 and NF-κB expression. Blood H2S concentration was measured by deproteinization and Cystathionine-γ-lyase (CSE) activity us-ing spectrophotometric methylene blue method. Results At 24 h, 48 h, and 72 h after surgery, Levels of WBC, Cr and BUN were all elevated in Sepsis group compared with the other four groups. Levels of WBC and BUN in NaHS 8.4μmol/kg group were lower than those in NaHS 2.8μmol/kg group. At 24 h, 48 h after surgery, there is no significant difference be-tween levels of Cr in NaHS 8.4 μmol/kg group and that in NaHS 2.8 μmol/kg group , but Cr level in NaHS 8.4 μmol/kg group was marked lower than that in NaHS 2.8μmol/kg group 72 hour after surgery. Pathological features of kidney injury were also alleviated by intravenous administration of NaHS. TNF-α, NF-κB expressions in NaHS 2.8μmol/kg group and NaHS 8.4 μmol/kg group were lower than those in Sepsis group, IL- 10 expression was higher than that in Sepsis group. TNF-α, NF-κB expressions in NaHS 8.4μmol/kg group were lower than that in NaHS 2.8μmol/kg group, whereas IL-10 expression in NaHS 8.4μmol/kg group was higher than that in NaHS 2.8μmol/kg group. Compared with Control group and Sham group, H2S content and CSE expression in kidney were decreased in Sepsis group. After intravenous administration of NaHS, H2S content increased, but the CSE activity has no obvious change. Conclusion Exogenous H2S reduced kidney in-jury induced by urinary-derived sepsis through inhibiting NF-κB, decreasing TNF-αand increasing IL-10.

OBJECTIVETo explore the endothelial progenitor cell markers and biological characteristics of human CD133 umbilical cord blood cells( EPC).

METHODSCD133+ cells were enriched from human umbilical cord blood by immunomagnetic sorting, and cultured with EGM-2MV medium containing epidermal growth factor, vascular endothelial growth factor and fibroblast growth factor 2. The percentage of CD133+ cells in cord blood monocytes, the growth curve and growth characteristics of primary EPCs were measured by flow cytometry and immunochemistry method. Weibel-Palade body was observed with transmission electron microscope. The mixture of EPCs and human stomach cancer cell line GC7901 were injected into athymic mice to observe the tumor growth and vascularization.

RESULTSThe percentage of CD133+ cells in cord blood monocytes was 0.91%, and after sorting, the percentage of CD133+ cells was raised to 85.52%. The cultured cells showed a typical spindle-shaped morphology in 3 post-culture days (PCD) and areas of clusters of cobblestone-like cells in 10 PCD. The number of EPC increased from 7 PCD on, peaked on 17 PCD. Obvious amplification and clone-like growth on 7 PCD were observed by light microscope. Typical Weibel-Palade body was observed in the cells under transmission electron microscope. Tumor forming experiment in athymic mice showed that the tumor size of EPC group was larger than that of control with smaller necrosis area and more and larger blood vessels. Immuno-fluorescent staining showed many human vWF antigen-positive endothelial cells being involved in the tumor vascularization.

CONCLUSIONImmunomagnetic sorting can efficiently enrich EPC from human umbilical cord blood. Our data support that the EPC may contribute to angiogenesis, speed up vascularization of ischemic tissue.

AC133 Antigen ; Animals ; Antigens, CD ; Antigens, CD34 ; Cell Culture Techniques ; Cell Differentiation ; Cell Line, Tumor ; Cell Separation ; Cells, Cultured ; Endothelial Cells ; cytology ; Female ; Fetal Blood ; cytology ; Glycoproteins ; Humans ; Mice ; Mice, Inbred BALB C ; Monocytes ; cytology ; Neovascularization, Pathologic ; Peptides ; Stem Cells ; cytology

OBJECTIVETo explore the preliminary methods of in vitro isolation, culture and identification of sebocytes and eccrine sweat gland cells from human fetal skin.

METHODSHuman fetal skin was digested with dispase or type II collagenase, and then by micro - sieving to isolate human sebaceous gland and eccrine sweat gland cells. DMEM/F12 (1: 1) was used as the basic culture medium, supplemented with fetal bovine serum, recombinant human epidermal growth factor, L-glutamine, Hydrocortisone, choleratoxin, penicillin and streptomycin as the medium for sebocytes, or fetal bovine serum, recombinant human epidermal growth factor, triiodothyronine, hydrocortisone, insulin, transferrin, sodium selenite to the medium for eccrine sweat gland duct cells. Primary cultures and subcultures were incubated at 37 degrees C in humidified atmosphere of 5% CO2/95% oxygen. Cell morphology was observed by inverted phase contrast microscopy, and the cultured cells were identified with cell clone efficiency determination. The cultured sebocytes were identified with oil red staining and CK4.62, Epithelia Membrane Antigen (EMA) immunohistochemistry staining. The cultured eccrine sweat gland duct cells were identified with CK7, CK19 immunohistochemistry staining.

RESULTSThe isolated sebocytes and eccrine sweat gland cells from human fetal skin could grow by adhering to the wall and proliferate in vitro. The cell clone efficiency of human fetal sebocytes was 2.7%, which was obviously lower than that of human fetal keratinocytes (8.0%, P < 0.01). There was no obvious difference in the cell clone efficiency between human fetal eccrine sweat gland cells (7.3%) and human fetal keratinocytes (7.7%, P > 0.05) . The results of oil red staining indicated that a small quantity of lipid droplets in sebocytes, and immunohistochemistry staining of CK4.62, EMA were positive in subculture sebocytes. The immunohistochemistry staining of CK7, CK19 was positive in subculture eccrine sweat gland duct cells.

CONCLUSIONIn vitro cultured human fetal sebocytes and eccrine sweat gland duct cells displayed the markers and biological characteristics of epithelial lineage, but human fetal sebocytes proliferated more

Cell Culture Techniques ; Eccrine Glands ; cytology ; Fetus ; cytology ; Humans ; Sebaceous Glands ; cytology ; Skin ; cytology ; Vernix Caseosa ; cytology

Objective To investigate the effects of electroacupuncture (EA) at Quchi (LI11) and Zusanli (ST36) acupoints on the ultrastructural structure of cortical neurons in peripheral area and the protein expression of caspase- 3, Bcl- 2, Bax in rats with cerebral ischemia- reperfusion injury. Methods 36 male adult Sprague-Dawley rats were randomly divided into sham operation group, model group, and electroacupuncture group, with 12 rats in each group. The model group and electroacupuncture group were performed with left middle cerebral artery occlusion (MCAO) according to the modified Longa' methods. The electroacupuncture group received electroacupuncture at Quchi (LI11) and Zusanli (ST36) on the paralyzed limb, for 30 minute. The neurobehavioral scores were recorded before and after treatment. The ultrastructural structure of cortical neurons was observed with transmission electron microscope (TEM). The protein expression of caspase- 3, Bcl-2 and Bax were detected by Western blotting technique. Results The neurobehavioral score was lower in the electroacupuncture group than in the control group (P<0.05). Compared with the model group, the chromatin of neurons was even relatively, and the number of mitochondria increased. The expression of Bcl-2 was higher and the expression of caspase-3 and Bax was lower in the electroacupuncture group than in the model group (P<0.05). Conclusion Electroacupuncture at Quchi (LI11) and Zusanli (ST36) acupoints can inhibit the neurons apoptosis in peripheral area through mitochondria-caspase-3 pathway.

To simplify the macrocyclic fragment and to modify the zinc binding group of the natural product apicidin, two series of S-hexyl (heptyl) ethanethioate derivatives were designed and synthesized. Twenty-six compounds were synthesized and confirmed with 1H NMR, IR, MS and HR-MS spectrum, which were not reported. Take vorinostat as control, their antiporliferative activities against cancer cell lines, MCF-7 and HL-60, were tested with MTT assay or trypan blue staining method. Generally in both series it was found that, the chiral carbon atom at 7 position is not necessary, compounds II-1, II-3, II-6 and II-13 showed good activity on HL-60 cells in vitro, with the IC50 values less than 10 micromol x L(-1). II-7 and II-8 showed stronger activity against MCF-7 than Vorinostat, with the IC50 of 3.19 and 6.29 micromol x L(-1), respectively.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Cell Proliferation ; drug effects ; Drug Screening Assays, Antitumor ; HL-60 Cells ; Histone Deacetylase Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Humans ; Inhibitory Concentration 50 ; MCF-7 Cells ; Peptides, Cyclic ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship