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Low expression of fatty acid oxidation related gene ACADM indicates poor prognosis of renal clear cell carcinoma and is related to tumor immune infltration
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作者 JIECHUAN QIU TIANMIN YANG +3 位作者 YANNING SUN KAI SUN yingkun xu QINGHUA XIA 《Oncology Research》 SCIE 2024年第3期545-561,共17页
This research aims to identify the key fatty acid beta-oxidation(FAO)genes that are altered in kidney renal clear cell carcinoma(KIRC)and to analyze the role of these genes in KIRC The Gene Expression Omnibus(GEO)and ... This research aims to identify the key fatty acid beta-oxidation(FAO)genes that are altered in kidney renal clear cell carcinoma(KIRC)and to analyze the role of these genes in KIRC The Gene Expression Omnibus(GEO)and FAO datasets were used to identify these key genes.Wilcoxon rank sum test was used to assess the levels of acyl-CoA dehydrogenase medium chain(ACADM)between KIRC and non cancer samples.The logistic regression and Wilcoxon rank sum test were used to explore the association between ACADM and clinical features.The diagnostic performance of ACADM for KIRC was asessed using a diagnostic receiver operating ch aracteristic(ROC)curve.The co-expressed genes of ACADM were identifed in LinkedOmics database,and their function and pathway enrichment were analyzed.The correlation between ACADM expression level and immune infitration was analyzed by Gene Set Variation Analysis(GSVA)method Additionally,the proliferation,migration,and invasion abilities of KIRC cells were assessed after overexpressing ACADM.Following differential analysis and intersection,we identifed six hub genes,induding ACADM.We found that the expression level of ACADM was decreased in KIRC tissues and had a better diagnostic efect(AUC=0.916).Survival analysis suggested that patients with decreased ACADM expression had a worse prognosis.According to correlation analysis,a variety of dinical features were associated with the expression level of ACADML By analyzing the infiltration level of immune cells,we found that ACADM may be related to the enrichment of immune cells.Finally,ACADM overexpression inhibited proliferation,migration,and invasion of KIRC cells.In conclusion,our findings suggest that reduced ACADM expression in KIRC patients is indicative of poor prognosis.These results imply that ACADM may be a diagnostic and prognostic marker for individuals with KIRC,offering a reference for dinicians in diagnosis and treatment. 展开更多
关键词 Kidney renal clear cell carcinoma Acyl CoA dehydrogenase medium chain Immune infiltration Fatty acid oxidation Prognosis
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非正交光栅莫尔信号数字细分方法与实现 被引量:4
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作者 叶树亮 许莹琨 朱维斌 《光电工程》 CAS CSCD 北大核心 2017年第9期903-911,共9页
本文对非正交光栅莫尔信号细分方法展开研究,提出了基于信号采集、预处理和细分架构的非正交光栅莫尔信号数字细分的方案,在FPGA平台上完成32?512倍信号细分。针对电路系统中信号幅值比和采样率参数进行分析,建立了莫尔信号幅值偏差的... 本文对非正交光栅莫尔信号细分方法展开研究,提出了基于信号采集、预处理和细分架构的非正交光栅莫尔信号数字细分的方案,在FPGA平台上完成32?512倍信号细分。针对电路系统中信号幅值比和采样率参数进行分析,建立了莫尔信号幅值偏差的数学模型,明确信号幅值比k与周期细分数N的量化关系,实验证明,信号幅值偏差补偿要求随细分值增加而逐渐增高。建立了信号频率/采样率的数学模型,明确信号频率与采样率之比f/fs与周期细分数N的量化关系,实验证明,信号频率与采样率之比随细分值增加而逐渐降低。 展开更多
关键词 非正交偏差 光栅莫尔信号 数字细分 幅值比 采样率
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