Analysis of expression and clinical significance of METTL7B in glioma tissues based on bioinformatics / 中国肿瘤生物治疗杂志

@#[摘 要] 目的：探讨甲基转移酶样蛋白7B（METTL7B）在胶质瘤组织中的表达及其与患者临床病理特征和预后的相关性。方法：基于CGGA数据库胶质瘤数据和GTEx数据库正常脑组织数据，分析METTL7B基因在胶质瘤与正常脑组织中的表达差异，并用GEPIA数据库数据和免疫组织化学染色法进行验证。用Kaplan-Meier生存分析、单因素Cox分析、多因素Cox分析及ROC曲线分析等评估METTL7B在胶质瘤患者预后中的价值，用CGGA数据库数据分析METTL7B表达与胶质瘤患者临床病理特征的相关性，用CIBERSORT及TIMER数据库进行肿瘤免疫细胞浸润分析，进行KEGG通路富集分析及GO功能富集分析，通过基因共表达分析确定与METTL7B相关的基因。结果：METTL7B在胶质瘤组织中明显上调（均P<0.05），METTL7B表达是胶质瘤患者独立的不良预后因素。METTL7B高表达与高龄（>41岁）、肿瘤分级增加、肿瘤复发或继发性肿瘤、IDH野生型、1p19q非共缺失以及肿瘤的恶性病理学有关联（均P<0.01）；METTL7B表达与B细胞、CD4+ T细胞、CD8+ T细胞、单核细胞、中性粒细胞、巨噬细胞、活化肥大细胞等免疫细胞有关联（均P<0.05）。KEGG通路富集及GO功能分析结果显示，肿瘤相关信号通路及多种免疫反应在METTL7B高表达表型中显著富集。基因共表达分析结果表明，METTL7B与TNFRSF12A、CHI3L1、EMP3表达呈正相关（r=0.807、0.804、0.783，均P<0.01），与ELFN2、REPS2、SHANK2表达呈负相关（r=-0.642、-0.627、-0.602，均P<0.01）。结论：METTL7B在胶质瘤组织中的表达上调是预后不良的指标，且与肿瘤免疫浸润相关。

Scientific physical training on the clinical recovery of chronic fatigue injury / Treino físico científico para a recuperação de lesões por fadiga crônica / Entrenamiento físico científico para la recuperación de lesiones por fatiga crónica

ABSTRACT Introduction: Chronic fatigue syndrome is also called chronic fatigue and immune dysfunction syndrome. This disease has now become a common disease in modern medicine. Objective: To explore and analyze the effect of exercise therapy on chronic fatigue syndrome. Methods: We selected 70 patients with chronic fatigue syndrome for the experiment. The exercise group performed gradual exercise, and the control group was inactive. Results: Appropriate and regular exercise can achieve ideal results in the treatment of chronic fatigue syndrome. Conclusion: Studying methods to prevent and recover from fatigue syndrome will help in understanding and focusing attention on the topic of fatigue, as well as being aware of the methods of self-prevention of fatigue syndrome. Level of evidence II; Therapeutic studies - investigation of treatment results.

RESUMO Introdução: A síndrome de fadiga crônica é também chamada de fadiga crônica e síndrome de disfunção imune. Esta doença tem se tornado comum na medicina moderna. Objetivo: Explorar e analisar o efeito da terapia por exercício na síndrome de fadiga crônica. Métodos: Selecionamos 70 pacientes com síndrome de fadiga crônica para o experimento. O grupo de exercício praticou exercícios moderados e o grupo de controle permaneceu inativo. Resultados: Exercícios adequados e regulares podem atingir resultados ideais no tratamento da síndrome de fadiga crônica. Conclusão: O estudo de métodos para prevenir e se recuperar da síndrome de fadiga crônica ajuda ao entender e ficar atento ao tema da fadiga, assim como reconhecer os métodos de autoprevenção da síndrome da fadiga. Nível de evidência II; Estudos terapêuticos - investigação de resultados de tratamento.

RESUMEN Introducción: El síndrome de fatiga crónica se llama también fatiga crónica y síndrome de disfunción inmune. Esta enfermedad se ha vuelto común en la medicina moderna. Objetivo: Explorar y analizar el efecto de la terapia por ejercicio en el síndrome de fatiga crónica. Métodos: Seleccionamos 70 pacientes con síndrome de fatiga crónica para el experimento. El grupo de ejercicios practicó ejercicios moderados y el grupo de control permaneció inactivo. Resultados: Ejercicios adecuados y regulares pueden atingir resultados ideales en el tratamiento del síndrome de fatiga crónica. Conclusión: El estudio de métodos para prevenir y recuperarse del síndrome de fatiga crónica ayuda a entender y estar atento al tema de la fatiga, así como reconocer los métodos de autoprevención del síndrome de fatiga. Nivel de evidencia II; Estudios terapéuticos - investigación de resultados de tratamiento.

Noninvasive Diagnosis of Cardiac Amyloidosis by MRI and Echochardiography / 华中科技大学学报（医学）（英德文版）

This study described the radiological features on echocardiography and MRI specific to cardiac amyloidosis confirmed on biopsy.Eleven cases of biopsy-proven cardiac amyloidosis were retrospectively reviewed in this study.All patients underwent biopsy,cardiac MRI and echocardiography.The main echocardiography and MRI findings were as follows: diffuse ventricular and septum wall thickening,atrial enlargement,pericardial effusion,restricted left ventricular(LV)systolic and diastolic function,characteristic granular sparkling of myocardium.MRI revealed a characteristic pattern of global subendocardial late enhancement,extending in varying degrees into the neighboring myocardium.The findings agreed with the infiltration distribution of amyloid protein.Typical abnormalities seen on echocardiography and MRI should have important diagnostic and prognostic value of cardiac amyloidosis.MRI should be considered in the diagnosis of cardiac amyloidosis if echocardiographic features are suspicious.

Diffusion-weighted Single-shot Echo Planar MR Imaging of Normal Human Prostate Using Different b Values / 华中科技大学学报（医学）（英德文版）

This study examined the effect of different b values on diffusion-weighted MR imaging (DWI) of human prostate by using single-shot spin echo echo planar imaging (SE-EP1) sequences,observed the normal appearances and measured apparent diffusion coefficient (ADC) values in anatomical regions of normal prostate. Twenty-four healthy volunteers (mean age: 32 y) were studied by using a 1.ST system with a phased array surface multicoil. Two kinds of single-shot SE-EPI sequence were used to perform DWI in the prostate in volunteers, with five b values being 0, 30, 300, 500 to 1000 s/mm2. The image quality with different imaging parameters was analyzed and the ADC values in anatomical regions of normal prostate were measured. DWI of prostate was successfully obtained in all volunteers. The images were of good quality, without artifacts containing pixels within the prostate. The contrast was good between the different anatomical regions of the prostatic gland, i.e.,the peripheral zone (PZ), which exhibited higher signal intensity, and the central gland (CG). Signal intensity contrast was related to the magnitude of b values. The ADC values in PZ and CG were (1.27±0.22)× 10-3 mm2/s and (1.01±0.17)× 10-3 mm2/s, respectively. The ADC values were found to he significantly higher in PZ than in CG (P<0.05, paired t-test). Significant differences were found between the slice-selecting component and both the read-out and phase-encoding components of the ADC values. It is concluded that SE-EPI is a suitable DWI sequence for human prostate. The contrast between PZ and CG is good when b values are low, while the diffusion and ADC values are accurate when b values are high. ADC values are higher in PZ than in CG in normal prostate. Diffusional anisotropy is present in normal prostatic tissue.