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Brainstem glioma is a kind of gliomas with focus in the brain stem. At present, surgery is still the preferred treatment for brainstem gliomas. Resection of brainstem gliomas, because of the special anatomical structure and important physiological function, results in extremely high mortality and disability rate, and choosing a reasonable surgical program can significantly improve the prognosis of patients. This article mainly discusses the safe entry zone and surgical approach of brainstem gliomas.
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Objective:To observe the expression of IL-12 family subunit genes by real-time quantitative PCR in mice C6 glioma cells,construct the basis of the brain glioma research on IL-12 family in the future.Methods:Mice C6 glioma RNA was abstracted and reversed transcription cDNA.The mice C6 glioma cells mRNA expression influence of IL-12 family subunit genes was compared and analyzed by real-time quantitative PCR.Results: In mice C6 glioma cells, high expression abundances in IL-23a, IL-12a, midlde expression abundances in EBI3, IL-27, low expression abundance in IL-12b.Conclusion: IL-12 families are closely related to the occurrence and development of glioma,IL-12,IL-23 are regarded as the most potential anti-glioma cytokines among them,research de-velopments will bring a new way of brain glioma immune therapy.
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Objective To investigate and analyze the situation of urban neglected children aged 3 to 6 in 9 districts of Chongqing .Methods Totally 1 316 children were randomly sampled under stratification from 18 streets of 9 district of Chongqing . Based on the Child Neglect Norms used by China ,prevalence of child neglect was identified and SPSS 13 .0 was employed for statis‐tical analysis .Scores ,frequency/degrees ,age ,sex and 5 types (physical ,emotional ,educational ,safety and medical) of child neglect on every group of the regions were calculated .Results The average prevalence of child neglect for the 3 to 6 year‐olds was 22 .95% ,and the total degree was 39 .56 ± 7 .19 .No significant differences were found in the prevalence and degree of child neglect between males and females and among age groups (P<0 .05) .The frequencies of child neglect for the five types were 5 .09% to 10 .64% ,with the higher frequencies of safety neglect (10 .64% ) and physical neglect (9 .50% ) .The degrees of child neglect for the five types were 36 .94 to 41 .24 ,with the higher degrees of educational neglect and physical neglect (41 .24 ± 10 .43 ,39 .81 ± 9 .32 respectively ) .No significant differences were found in the frequency of the types between males and females and among age groups . No significant differences were found in the degree of the types (with an exception on emotional neglect among age groups) between males and females and among age groups .The children aged 3 to 6 were mainly involved in single item of negligence ,with incidence rates as 13 .68% and proportions as 59 .60% .Conclusion The frequency and degree of child neglect among children aged 3 to 6 in the urban areas of 9 district of Chongqing were medium ,and similar between males and females and among age groups ,except the degree of emotional neglect .The children aged 3 to 6 had the higher frequencies of safety and physical neglect ,and the higher de‐grees of educational and physical neglect .The children aged 3 to 6 were mainly involved in single item of negligence .
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Objective To investigate the related factors affecting the progression and early prognosis of patients with supratentorial WHO grade Ⅱ gliomas.Methods Clinical data of 65 patients with supratentorial grade Ⅱ gliomas,treated in our hospital from January 2005 to June 2010,were collected and analyzed.Follow-up was performed for 10-84 months.Univariate analysis was estimated by using Kaplan-Meier method; the differences between groups were analyzed by a log-rank test.The factors (P＜0.05 in univariate analysis) were analyzed by COX proportional hazards regression model in the multivariate analysis.Results Univariate analysis demonstrated that age of onset,initialpresentation,Karnofsky (KPS) scale scores at admission,tumor growth style,tumor enhancement pattern,extent of surgical resection and pathological subtype were associated with progression-free survival time (P＜0.05).Multivariate analysis showed that age,tumor enhancement pattem and extent of resection were significantly associated with progression-free survival time (P＜0.05).Conclusion The progression-free survival time of patients with supratentorial grade Ⅱ gliomas is associated with many factors; age,tumor enhancement pattem and extent of surgical resection were independent risk factors for patients' early prognosis.
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Gelatin-siloxane nanoparticles (GS NPs) have been considered to be good gene carrier candidate in vitro, since they have several advantages such as low toxicity, easy preparation and surface modification. In this study, the Tat-PEG-GS NPs were synthesized by the gelatin-siloxane, surface-modified with the polyethylene glycol (H2 N-PEG-COOH) and Tat peptide (KYGRRRQRRKKRGC) and thus constructed a delivery system which can cross BBB (Blood-brain barrier). The morphology, diameter, and zeta potential of Tat-PEG-GS NPs carrier system were characterized with transmission electron microscopy (TEM) and Nano-ZS zetasizer dynamic light scattering Detector. The organ distribution and dynamic evolution localized in the brain parenchyma of Tat-PEG-GS NPs in vivo was investigated with Cri in vivo imaging system and TEM. The obtained Tat-PEG-GS NPs were approximately spherical in shape with average particle size of 150-200 nm and zeta potentials of (32.27 +/- 2.47) mV. In vivo imaging results showed that the accumulation of Tat-PEG-GS NPs was higher in the brain than the accumulation of PEG-GS NPs, but the accumulation of Tat-PEG-GS NPs was lower in the liver than the accumulation of PEG-GS NPs. These differences are statistically significant. The nanocomplex could cross the BBB and reach the neural tissues tested with TEM. The Tat-PEG-GS NPs could cross the BBB and escape the arrest of the reticuloendothelial system (RES), and it would be potential nano-carrier systems for central delivery.