The immune tolerance or immune escape plays important roles in the genesis and progression of malignant gynecological neoplasms.Human leukocyte antigen G(HLA-G)is an important member of major histocompatiblity complex class Ⅰ.HLA-G seems to affect almost every aspect of human immunity.It can inhibit immunological function,and play an important role in immune escape of malignant gynecological neoplasms.

With the development of cartilage tissue engineering, how to achieve an ideal scaffold has become the difficult and hot spot in this study field. The scaffold for cartilage tissue engineering should provide with some special physical and biochemical properties, such as excellent biocompatibility, proper biodegradability, controlled porosity, adequate pore size and so on. Such properties are closely related to two factors, one is the materials used for scaffolds, the other is the fabrication technology. This review is concentrated on the present common fabrication technologies of three-dimensional porous scaffolds, and mainly introduces the following technologies: solvent casting/particulate leaching, phase separation/freeze-drying, hydrogels, gas foaming, electrospinning and rapid prototyping manufacturing. Those fabrication technologies' effects on structure and properties of scaffolds have been compared to summarize and analyze the advantages and disadvantages of every fabrication technology, and simultaneously prospect the developing tendency of fabrication technology in cartilage tissue engineering.

The scaffold for cartilage tissue engineering should have special physical and biochemical properties,such as excellent biocompatibility,proper biodegradability,controlled porosity,adequate pore size,etc.With the development of cartilage tissue engineering,how to achieve ideal scaffolds is becoming a hot spot in this field.This review outlines the advances in the studies of scaffolds in cartilage tissue engineering.

Because of the exists of minimal residual disease(MRD), children with acute lymphoblastic leukemia (ALL) often suffer from recurrence. Dendritic cells (DC) play a pivotal role in the body's anti-tumor immune response through taking up tumor antigens to stimulate the body's immune system.Therefore it has become a hotspot due to DC's immunotherapy of clearing MRD in the body of children with ALL. This review discusses the DC characteristics, the immune escape mechanism associated with DC and the use of DC's immunotherapy in children with ALL.

Objective To investigate effect of propofol total intravenous anesthesia and sevoflurane inhalation anesthesia on perioperative inflammatory response in patients with lung cancer.Methods Forty patients with simple resection of lung cancer were selected in our hospital.They were divided into observation group and control groups according to random sampling method (n=20).Observation group was given propofol total intravenous anesthesia while control group received sevoflurane inhalation anesthesia.The serum concentrations of MMP-9,TNF-α,IL-6 were compared at the T0 (immediately before the induction of anesthesia) , T1 (1 hour after surgery) , T2 (end of the surgery immediately) , T3 (24 hour after surgery) . Results Compared with the T0 period,the serum concentrations of MMP-9,TNF-αand IL-6 at the T1,T2,T3 periods were increased significantly in the both groups(P<0.05);the concentrations of TNF-α, IL-6 were lower significantly in observation group compared with control group (P<0.05) . Conclusion Propofol anesthesia for resection of lung cancer patients can significantly reduce the inflammatory response.

Objective To analyse subtyping of iscbemic stroke by the criteria of Trial of Org 10 172 in Acute Stroke Treatment (TOAST), its distribution, and relationship between TOAST subtypes, its risk factors and recurrence. Methods Clinical data of 441 patients of ischemic stroke were collected prospectively during October 1, 2006 to September 30, 2007. All the patients were classified by TOAST criteria into five major subtypes and followed-up for one year since its first episode. Dates of its recurrence and death due to recurrence were recorded. Results All the 441 patients with ischemic stroke could be subtyped etiologically according to TOAST criteria as follows: etiology undetermined in 42.3 percent, small-vessel occlusion in 30.9 percent, large-artery atherosclerosis in 17.3 percent, cardioembolism in 9.3 percent, and others in 0.2 percent, without statistically significant difference in its gender and age distributions. Recurrence rate of iscbemic stroke in one year since its first episode for varied subtypes was 33.3 percent for cardioembolism, 14. 6 percent for etiology undetermined, 13.7 percent for large-artery atherosclerosis and 6.9 percent for small-vessel occlusion, respectively. There was no significant difference in risk factors for varied subtypes of iscbemic stroke, including history of smoking, hypertension, diabetes, cardiac disease, and serum levels of total cholesterol, low-density lipoprotein cholesterol, fihrinogen and glucose. Conclusions Varied subtypes of iscbemic stroke had different risk factors and recurrence rate by TOAST criteria, which can be used as an etiologic classification for its secondary prevention.

Cycloxygenase-2 plays an important role in many human tumorigenesis, and is overexpressod in breast cancer. Therefore, it is necessary to investigate the relationship between COX-2 and breast cancer, and to develop the desirable COX-2 inhibitor. These can privide a new antitumor method.

ObjectivesTo study the current status of child neglect and its inlfuencing factors in children aged 3-6 years in rural Henan.MethodsScales and evaluation methods in the Chinese rural child aged 3-6 years neglected eval-uation model were applied in this study. The neglect rate and the neglect degree were used to describe the neglect status of rural children aged 3-6 years in Henan. The inlfuencing factors for child neglect were also analyzed. ResultsThe total neglect rate in 450 enrolled children was 37.1% (167/450). The total neglect degree was 51.9±6.5. The boys had signiifcant-ly higher neglect rate than girls (P<0.05). There was no significant difference in neglect degree between boys and girls (P>0.05). There were significant differences in neglect rate and neglect degree among the different age groups (P<0.05), the higher neglect rate and higher neglect degree over age. The neglect rate and neglect degree in nuclear families and fam-ilies with three generations were lower than those in single-parent families and remarried families (P<0.05). The neglect rate and neglect degree in non-only children were higher than those in only children (P<0.05). The left-behind children had signiifcantly higher neglect rate and neglect degree than children living with parents (P<0.05). Based on multivariate logis-tic regression analysis, the risk factors of child neglect were single-parent families (OR = 4.78, 95%CI : 2.10-10.87) and remarried families (OR=4.53, 95%CI : 1.99-10.01). The protective factors of child neglect were parents working on sci-ence (OR = 0.20, 95%CI : 0.10-0.67) and living with parents (OR = 0.03, 95%CI : 0.00-0.54).ConclusionsThe neglect status is serious in Henan rural children, particularly in left-behind children.

A semantic predication network was developed by processing the documents on schizophrenia into se-mantic predication sets using SemRep, from which the core information was extracted to produce a graphic summary which was consisted of highly cohesive cliques.The automatic methods for summarizing biomedical documents were studied using the network properties combined with semantic information.The subthemes in the summary obtained by clustering were evaluated according to the clique co-node matrix and the contents of the summary were assessed according to the reference criteria.The accuracy was 0.93, the recall was 0.68, and the F-value was 0.79 for the summary, indicating that this method can effectively recognize the core information in documents and the semantic information in network graphics.