Objective To investigate the effect of IGF-1R inhibitor AG1024 on the esophageal cancer xenografts and the underlying mechanisms.Methods The mouse model was established by injecting EC9706 cells subcutaneous in nude mice.When the tumors were 100 mm3 in size,the mice were divided into 4 groups randomly withcontrol group with no treatment; irradiation group with 8 Gy 6 MV Xrays at 1 and 8 d each time; AG1024-treatment group with 30 μg/(kg-d) AG1024 injected intraperitoneally (ip) 5 times a week for two weeks ; combination group:receiving both 30 μg/(kg· d)-1 AG1024 ip and irradiation of 8 Gy X-rays.The diameters of the tumors were measured every 3 days.The mice were sacrificed and the weights of tumors were measured at 15 d after treatment.Tumor inhibition rate was calculated.The cell cycle was examined by flow cytometry.The expression of cell cycle protein D1 (CyclinDl) of the tumors were detected by immunohistochemical staining.Terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) assay was used to detect the cell apoptosis in the tumor tissue.Results The tumor weight in the irradiation group,AG1024-treatment group and combination group were significantly decreased compared with the control group,and the inhibition rate were 39.16％,18.73％,57.04％,respectively (F =13.566,P ＜ 0.05).After treatment with AG1024 and irradiation,tumor tissue cells were significantly accumulatedin the G0/G1 and G2/M phases and decreased in S phase compared to the irradiation group (t =-6.654,-16.738,12.871,P ＜ 0.05).The CyclinD1 expression of the combination group was significantly decreased compared with the control group.In the combination group,the apoptotic cells were detected by TUNEL assay.Conclusions IGF-1R inhibitor AG1024 could change the cell cycle and induce cell apoptosis,which might result in the enhancement of radiosensitivity on the esophageal cancer xenografts.

Objective To summarize the therapeutic experience of 23 patients of traumatic head injuries with a score of 3 on GCS,Methods 23 most severe head injuried patients with a score of 3 on GCS who admitted were analyzed retrospectively.Results 8 cases(34%)survived in which 5 cases(21%)had a good recovery or moderate disability,and other 3 cases(13%)with severe deficits.The other 15 cases(66%)dead after therapy.Conclusion The prognosis of most severe head injured patients with a score of 3 on GCS could be improved by early evacuation of intracranial hematoma with large decompressive cranietomies,early moderate hypothermia therapy,early assistant ventilation and effective prevention and treatment of complications.

Purpose To evaluate the diagnostic values of Clusterin, CXCL13, Podoplanin (D2-40), CD21 and CD35 in follcular den-dritic cell sarcoma. Methods The expression levels of 10 cases of follcular dendritic cell sarcoma ( FDCS) and 12 types of FDCS mimics (83 cases in total) were investigated by immunohistochemical methods, the latter including solitary fibrous tumor, leiomyosar-coma, gastrointestinal stromal tumor and others. The diagnostic validities of the five biomarkers were compared. Results ( 1 ) The positive rates of Clusterin, CXCL13, D2-40, CD21 and CD35 in the FDCS group were 100%, 70%, 60%, 90% and 80%, respec-tively, the corresponding rates in the control group were 30%, 4%, 11%, 2% and 0 in turn. (2) The five biomarkers could be cate-gorized into 3 groups, according to their diagnostic values in FDCS. The first group included CD21 and CD35, which had much higher sensitivities (90%, 80%), specificities (100%, 98%) and accuracies (98%, 96%), compared with the other biomarkers. The second group included CXCL13 and D2-40, which had a relatively lower sensitivities (70%, 60%), specificities (96%, 89%) and accuracies (94%, 86%), compared with CD21 and CD35. The third group included Clusterin, which had the highest sensitivity (100%), while the specificity (70%)and accuracy (73%) were inferior to the first and second groups. (3) The diagnostic values of CD21 and CD35 combination were 100%, 98%, 98%, 83% and 100%, respectively. Conclusions (1) CD21 and CD35 are the most valuable biomarkers for FDCS. The combined diagnostic effect of the two markers is generally superior to that of single marker. (2) Clusterin has the highest sensitivity for FDCS. However, the frequent expression in FDCS mimickers restricts its diagnostic values for FDCS. (3) CXCL13 and D2-40 may be used as a marker for FDCS, but are not recommended as the first selection based on their diagnostic performance. (4) On the reasons that FDCS mimickers may not uncommonly express Clusterin and D2-40, and rarely show positivity for CD21 or CXCL13, more attention should be paid to the phenomenon to avoid misdiagnosis.

Purpose To detect high mobility group protein A2 (HMGA2) expression in breast cancer, and to analyze its relationship with clinicopathological features and the levels of HMGA2 in different molecular subtypes of breast carcinomas. Methods An immu-nohistochemical study was undertaken for measuring the levels of HMGA2 in 58 breast carcinomas. Results ( 1 ) The expression of HMGA2 was 0, 62. 5%, 60. 0%, 100. 0% and 80. 0% in Lum A, Lum B, HER-2-OE, basal-like breast carcinoma (BLBC) and un-classification phenotype respectively ( triple negative breast cancer, 92. 3%) . High expression of HMGA2 was associated with the tri-ple-negative breast cancer (TNBC) subtypes (P<0. 01). (2) An association was identified between high expression of HMGA2, and high tumor grade, lymph node metastasis (P<0. 05), positive Ki-67, CK5/6 and EGFR (P<0. 05), negative ER and PR (P<0. 01), but no association was observed for tumor size and patients’age. Conclusion An association is identified between high ex-pression, and high tumor grade, lymph node metastasis, positive Ki-67, EGFR and CK5/6, negative ER and PR, that means a high expression of HMGA2 is associated with an adverse outcome in breast cancer. High expression of HMGA2 are associated with the TNBC subtypes. Thus recognizing HMGA2 as a rational target in TNBC. The results of the study have implications for therapeutic target iden-tification and the design of future clinical trials for TNBC.

Objective To investigate the distribution characteristics of bone marrow(BM)cell morphological results and their role in the etiological diagnosis of blood diseases,and to understand the characteristics of hematological diseases spectrum in this ar-ea.Methods The BM puncture specimens in 372 cases of hematological diseases in our hospital from March 2012 to April 2014 were performed the Wright-Giemsa staining and cytochemical staining.The cell morphology and cytochemical staining were ob-served by microscope,which was combined with the related clinical data for obtaining the morphological report.Results Among 372 cases,368 cases were diagnosed with hematological diseases,which were dominated by 3 kinds of main type,leukemia(95/372), hyperplasia anemia(36/372)and iron-deficiency anemia (26/372).In 82 cases of anemia,hyperplasia anemia(36/82),iron-deficiency anemia (26/82)and megaloblastic anemia (11/82)were predominant.Conclusion The BM morphological examination is one of im-portant measures for the etiological diagnosis in hematological diseases.The analysis on the diseases spectrum is conducive to guide the diagnosis and treatment in clinic.

Objective To observe the syndrome manifestations of rabbit atherosclerosis models and explore the syndrome attribution rules of the models.Methods The 24 male Japanese rabbits were randomized into a control group(n=8)and a experimental group(n=16).The control group was given normal feed,and the experimental group was treated with high-fat diet and immune injury and surgical injury through the femoral artery balloon.They were fed totally for 10 weeks.Vascular morphological changes and blood lipid determine were used to evaluate the models.The ear,tongue,eye,and the overall state of rabbits were regularly observed to see the changes of TCM syndromes.Results The rabbits of the experimental group gradually reduced the amount of activity in early stage.When the climate changed,their nasal secretion was increased,and they had wheezing breathing,fever and other common cold symptoms like red auricle.In the medium stage,the fatty plaque or belt around the eyes,cold auricle,and listlessness could be seen,and the blood fat was significantly higher than that of the control group.To the tenth week,the dark tongue with blood spots and purple cold auricle appeared in the rabbits of the experimental group.It was difficult to draw blood from the ear,and the emboli could be seen in the vessels of auricles.Compared with the control group,the oxidized low density lipoprotein and malondialdehyde of the experimental group were significantly increased,and the activity of superoxide dismutase decreased.Conclusion The syndromes of rabbit atherosclerosis models are in the changing state,in early stage they can be manifested as Qi deficiency,in middle stage the manifestation can be Qi deficiency with phlegm retention,and in late stage there will be Qi deficiency with blood stasis.The rule is similar to that of the pathogenesis of atherosclerosis in clinic.

Objective:To observe whether the Simiao Yongan Decoction regulate the nuclear factor-?B(NF-?B) expression and related factors in atherosclerosis(AS)rabbit model,thus restrain the occurrence of atherosclerosis and plaque formation.Methods:56 male Japanese rabbits were randomly divided into normal group,model group,Simvastatin group and Simiao Yongan Decoction group,in addition to the normal group,other groups were established aortic atherosclerotic plaque model.From the1st day of experiment,the corresponding drug intervention began,10 weeks later,the rabbits were killed over the weekend after the anesthesia line access aortic NF-?B immunohistochemical staining,and the experimental dynamic 0,3,6,10 weeks in serum TNF-?,IL-1 and MCP-1 content.Results:The expression of NF-?B p65 subunit in model group was rich,and compared with it,the expression of NF-?B p65 subunit in treatment groups decreased,and the Simiao Yongan Decoction can obviously inhibit the expression of NF-?B p65 subunit.In model group,the expressions of IL-1,TNF-?and MCP-1 in serum increased significantly at different time points(P

This study was aimed to determine effect of Bu-Shen Kang-Shuai (BSKS) Tablet on HO-1 mRNA and its associated oxidative stress levels among atherosclerotic rabbits. A total of 56 rabbits were randomly divided into the normal group (8 rabbits) and the experimental group (48 rabbits). Normal diet was given to the normal group. Atherosclerotic rabbits models were established in the experimental group. At the eighth week, rabblits in the experi-mental group were randomly divided into the model group, BSKS Tablet group and simvastatin group. Blood samples were collected before medication, 8-, 12-, 16-week after medication from rabbits of each group. Rabbits were sacri-ficed under aseptic conditions at the last blood collection. Expressions of aortic HO-1 mRNA and PPARα mRNA were measured by Q-PCR method. The level of MMP-9 was measured by immunohistochemical assay. Serum HbCO, COX-2 activity and cGMP level were measured by ELISA assay. The results showed that after the intervention of BSKS Tablet, serum HbCO level decreasd, cGMP was obviously increased. However, there was no obvious change on the COX-2 activity. The immunohistochemical assay showed that BSKS Tablet obviously reduced MMP-9 level of rabbits. There was only small amount of aortic HO-1 mRNA expression in the normal group. However, the expres-sion of aortic HO-1 mRNA in the atherosclerosis group was increased. After intervention of BSKS Tablet, the ex-pression of HO-1 mRNA was increased with statistical significance (P < 0.05). Simvastatin had similar antioxidant effect. It was concluded that the compound preparation of traditional Chinese medicine (TCM) BSKS Tablets had an important antioxidant effect in treatment of atherosclerosis. Its protective mechanism may be through the regulation of HO-1 mRNA gene expression and effects of HO-1/CO-cGMP pathway activities of related enzymes while peroxida-tion stability of atherosclerotic plaque.

Magnesium stents have gained increasing interest as an ideal stent of future intervention. In order to study the deformation behavior of magnesium alloy stents in the interventional treatment, the finite element method was used to analysis the effects of different crimp and expansion dimensions on the mechanical properties (maximum stress, radial recoil rate, longitudinal shortening rate and radial strength). The results showed that crimping and expanding have a minimal influence on the stent radial strength. When the expansion size is same, the maximum equivalent stress and recoil rate decrease with the crimp size. When the crimp size is same, in contrast with the radial recoil rate, the maximum equivalent stress and longitudinal shortening rate increase with the expansion size. In addition the paper verified the radial strength-radial displacement curve obtained by FEM. Results are basically consistent, indicating the finite element method can efficiently provide researchers with reliable, high-quality design.
Alloys ; Finite Element Analysis ; Magnesium ; Stents

Purpose To study the levels and subcellular localization of β-catenin in 5 different molecular subtypes of breast carcino-mas. Methods An immunohistochemical study was undertaken for measuring the levels and subcellular localization ofβ-catenin in 58 breast carcinomas. Results ( 1 ) The cytoplasmic expression of β-catenin was 21. 1%, 50%, 60%, 100% and 60% ( TNBC 84. 6%) in Lumina A, Lumina B, HER-2-OE, basal-like breast carcinoma ( BLBC) and uncl phenotype respectively. High cytoplas-mic expression was associated with the BLBC and TNBC subtypes ( P<0. 05 ) . ( 2 ) An association was identified between high cyto-plasmic expression of β-catenin, and high tumor grade (P<0. 01), abnormal E-cadherin, positive Ki-67 and CK5/6 (P<0. 05), negative ER and PR (P<0. 01), but no association was observed for lymph node metastasis, tumor size and patients’age. Conclu-sion An association is identified between high cytoplasmic expression, and high tumor grade, positive Ki-67 and CK5/6, negative ER and PR, that means a high cytoplasmic expression ofβ-catenin is associated with an adverse outcome in breast cancer. High cytoplas-mic expression are associated with the BLBC and TNBC subtypes whcih recognizing Wnt signaling as a rational target in TNBC and BLBC. The results of the study have implications for therapeutic target identification and the design of future clinical trials for TNBC and BLBC.