Adenocarcinoma ; classification ; pathology ; Carcinoma, Squamous Cell ; classification ; pathology ; Esophageal Neoplasms ; classification ; pathology ; Humans ; International Cooperation ; Lymphatic Metastasis ; pathology ; Neoplasm Invasiveness ; Neoplasm Staging ; methods ; standards ; Societies, Medical ; United States

Objective: To investigate the antitumor effects of melittin on UMR-106 cells with osteosarcoma xenografts in nude mice and its action on vasculogenic mimicry (VM) in vitro and in vivo. Methods: A three-dimensional cell culture system was formed on matrigel coats in vitro. Inhibitory action of melittin on the VM of UMR-106 cells was observed in vitro. Osteosarcoma was orthotopically transplanted in nude mice. The mice were randomly divided into three groups: normal saline (NS)-treated group, melittin group (320 μg/kg) and DDP-treated group(2 mg/kg). The drug was administered intratumorally for 10 d. The tumor volume and weight inhibition ratio were calculated, respectively. The VM density in tumor tissues was detected by CD34 and PAS double staining in vivo. The expressions of hypoxia-inducible factor-1α(HIF-1α) and matrix metalloproteinase-2 (MMP-2) proteins were determined by immunohistochemical staining and Western blot. Results: Melittin broke down the mesh and round architectonic of VM in osteosarcoma in vitro. The tumor weight inhibition ratio was 38.92% and the volume inhibition ratio was 43.04%. The VM density and the expressions of HIF-1α and MMP-2 proteins were decreased in the melittin group than that in the NS-treated group (P <0.01). Conclusion: Melittin markedly inhibites the growth of osteosarcoma UMR-106 xenografts in nude mice. The mechanism may be due to down-regulation of HIF-1α and MMP-2 expression and the inhibition of VM.

Capsule Endoscopy ; Child, Preschool ; Female ; Gastrointestinal Neoplasms ; etiology ; pathology ; Humans ; Lymphangioma, Cystic ; etiology ; pathology ; Nevus, Blue ; etiology ; pathology ; Skin Neoplasms ; etiology ; pathology

Objective To investigate the effectiveness and feasibility of laparoscopic splenic artery ligation in the treatment of hypersplenism and thrombocytopenia in children. Methods From August 2014 to December 2014, four children with hypersplenism and three children with ITP (idiopathic thrombocytopenic purpura) were treated in our hospital.Laparoscopic splenic artery ligation was performed in all the patients.During the operation, the gastric colon ligament was cut with an ultrasonic knife, and the gastric wall was suspended to expose the pancreas and the spleen.The splenic artery was ligated at the upper edge of pancreas closing to the splenic hilum.The splenic venous branches were dissected and ligated at the splenic hilum by using the Hem-o-lok, which leaded to an area of splenic infarction more than 50%. Results The laparoscopic splenic artery ligation was successfully performed in all the patients, without conversion to open surgery.The operative time was 120-150 min ( mean, 126 min) , and the intraoperative blood loss was 10-20 ml ( mean, 15 ml) .No patient underwent blood transfusion.The length of postoperative hospital stay varied from 4 to 11 days (mean, 6.6 days).The splenic length significantly decreased postoperatively [(13.6 ±2.6) cm vs.(15.1 ±1.7) cm, t=3.199, P=0.049], and so was the splenic thickness [(3.8 ±1.0) cm vs.(4.1 ±0.8) cm, t =3.703, P=0.034].Partial splenic infarction and decreased splenic blood flow were found in the 7 patients by postoperative ultrasound.After surgery, four children suffered from fever, which were 38.8 ℃, 39.0 ℃, 38.6 ℃, and 39.2 ℃, with the duration of fever of 2, 4, 8, and 5 days, respectively.All the patients were followed-up for 6 -10 months (mean, 8.4 months).The complete blood cell count was within normal range. Conclusion The laparoscopic splenic artery ligation is an effective treatment for hypersplenism and thrombocytopenia in children.

3 months group,6 neonates were admitted to intensive care unit,2 with birth defects and 1 died. Conclusion There was no clear evidence in this study demonstrating any association between adverse perinatal outcomes and pregnancy immediately after spontaneous abortion.

Objective To investigate curative effects of endoscopic sternocleidomastoid muscle amputation for the treatment of congenital muscular torticollis.Methods A total of 23 children with congenital muscular torticollis were treated in this department.Their age was 1 month ~ 12 years old(median,30 months).A 5 mm trocar was inserted through the right axilla along the cleavage lines.Under the endoscopic visualization,the sarcolemma on the inferior portion of the muscle was bluntly dissected and a subcutaneous space was established by CO_2 inflation at the pressure of 6 mm Hg.Another two 3 mm incisions were made along the cleavage lines at lower lateral part of the neck and the anterior chest wall for the introduction of curved forceps and electric knife,respectively.The sternocleidomastoid muscle was transected with electrocautery and the external fascia within which the sternocleidomastoid muscle resides was also adequately divided. Results The operation was successfully completed under endoscope in all the 23 children.The mean operation time was 51.2 min(range,(35~)135 min) and the intraoperative blood loss was

Objective To investigate the biocompatibility between collagen- polyglycolic acid (PGA) and bone marrow mesenchymal stem cells (MSCs) in vitro to provide some experimental basis for further study in tendon tissue engineering. Methods MSCs were isolated, cultured and characterized. In the experimental group the MSCs were cultured in DMEM containing type-I collagen and PGA suture, and in the control group the MSCs were cultured in DMEM. The cell growth was compared between the two groups, and the cell ultramicroscopic structure of experimental group was observed. Results MSCs grew well in the collagen-PGA scaffold, and 2 weeks after incubation they still kept secretion potential and more than cell 89% vitality, which were not significantly different compared with the control group. There is no statistical difference in the MSCs count in the experimental group during 2 weeks culture, while in the control group MSCs began to proliferate at the 4th day after culture. Conclusion Collagen-PGA has a good biocompatibility with mesenchymal stem cells. It is possible to fabricate a tissue-engineered tendon in vitro using mesenchymal stem cells as seed cells and collagen-PGA as scaffold.

Twenty-three histone methyltransferase genes were obtained from transcriptome dataset of Lonicera japonica. The nucleotide and proteins characteristics, subcellular localization, senior structural domains and conservative forecasting were analyzed. The result of phylogenetic tree showed that 23 histone methyltransferases were mainly divided into two groups: lysine methyltransferase and arginine methyltransferases. The result of gene expression showed that 23 histone methyltransferases showed preference in terms of interspecies and organs. They were more expressed in buds of L. japonica than in L. japonica var. chinensis and lower in leaves of L. japonica than in L. japonica var. chinensis. Eight genes were specific expressed in flower. These results provided basis for further understanding the function of histone methyltransferase and epigenetic regulation of active ingredients of L. japonica.
Computational Biology ; Gene Expression ; Histone-Lysine N-Methyltransferase ; genetics ; Lonicera ; enzymology ; genetics ; Phylogeny

Objective To evaluate the accuracy of multi-detector spiral CT (MSCT) semiautomated volumetric measurement of right lobes and its value in living donor liver transplantation (LDLT). Methods Fifty-six donors underwent four phases MSCT. Pre-operative liver volumes of two measurements [IQQA(R)-liver semi-automated (Vs) and manual volume (Vm) measurements] in portal vein phase were compared with intra-operative measurement (Vio) by means of water displacement. Results Correlation analysis and Bland-Altman tests were used for statistical analysis.Results Pre-operative measurements of grafts resulted in a mean Vs, Vm, Vio of (818. 60 ± 161.43)cm3 , (880. 16 ± 169. 92) cm3 and (669. 84 ± 141.37) cm3 respectively. All corresponding pre-and intra-operative data were correlated significantly with each other. There was a good correlation between Vs and Vio(r= 0. 778, P＜0. 05), so did Vm and Vio(r= 0. 746, P＜0. 05). The equations of linear regression were Vio = Vs × 0. 681 + 112. 26, and Vio = Vm × 0. 620 + 123. 81 respectively. Exact 95 % CIs and the extent of concordance were 121.57-175. 95 cm3, -354. 135-56. 62 cm3 for semiautomated measurements, and 180. 09-240. 56 cm3 , - 438. 66-18. 01 cm3 for manual measurements,respectively. Conclusion Semi-automated method for the volumetric measurements of the right liver lobes in LDLT is more accurate than the manual method.

Angiogenesis Inhibitors ; therapeutic use ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phytotherapy ; Precancerous Conditions ; drug therapy ; Stomach Neoplasms ; blood supply ; drug therapy