目的探讨血清低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)水平与冠心病患者冠状动脉病变的关系。方法经选择性冠状动脉造影328例,根据冠状动脉造影结果分为冠心病组和对照组;冠心病组根据病变范围分为单支病变、双...目的探讨血清低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)水平与冠心病患者冠状动脉病变的关系。方法经选择性冠状动脉造影328例,根据冠状动脉造影结果分为冠心病组和对照组;冠心病组根据病变范围分为单支病变、双支病变、多支病变;根据病变狭窄程度分为轻度、中度、重度狭窄组。分别测定其血脂水平。结果冠心病组甘油三酯、LDL-C和总胆固醇水平明显高于对照组。总胆固醇和LDL-C水平与冠状动脉病变呈正相关;双支病变组与三支病变组明显高于对照组及单支病变组(P<0.01),中度狭窄组和重度狭窄组明显高于对照组及轻度狭窄组(P<0.01)。结论总胆固醇与LDL-C能够反映冠心病患者冠状动脉的病变情况,其水平随冠状动脉病变范围及病变程度的加重而升高,可作为预测冠状动脉病变的一个因素。展开更多
Objective:Middle ear cholesteatoma is a non-tumorous condition that typically leads to hearing loss,bone destruction,and other severe complications.Despite surgery being the primary treatment,the recurrence rate remai...Objective:Middle ear cholesteatoma is a non-tumorous condition that typically leads to hearing loss,bone destruction,and other severe complications.Despite surgery being the primary treatment,the recurrence rate remains high.Therefore,exploring the molecular mechanisms underlying cholesteatoma is crucial for discovering new therapeutic approaches.This study aims to explore the involvement of N6-methyladenosine(m^(6)A)methylation in long non-coding RNAs(lncRNAs)in the biological functions and related pathways of middle ear cholesteatoma.Methods:The m^(6)A modification patterns of lncRNA in middle ear cholesteatoma tissues(n=5)and normal post-auricular skin tissues(n=5)were analyzed using an lncRNA m^(6)A transcriptome microarray.Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway analyses were conducted to identify potential biological functions and signaling pathways involved in the pathogenesis of middle ear cholesteatoma.Methylated RNA immunoprecipitation(MeRIP)-PCR was used to validate the m^(6)A modifications in cholesteatoma and normal skin tissues.Results:Compared with normal skin tissues,1525 lncRNAs were differentially methylated in middle ear cholesteatoma tissues,with 1048 showing hypermethylation and 477 showing hypomethylation[fold change(FC)≥3 or<1/3,P<0.05].GO enrichment analysis indicated that hypermethylated lncRNAs were involved in protein phosphatase inhibitor activity,neuron-neuron synapse,and regulation ofα-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid(AMPA)receptor activity.Hypomethylated lncRNAs were associated with mRNA methyltransferase activity,secretory granule membrane,and mRNA methylation.KEGG analysis revealed that hypermethylated lncRNAs were mainly associated with 5 pathways:the Hedgehog signaling pathway,viral protein interaction with cytokines and cytokine receptors,mitogen-activated protein kinase(MAPK)signaling pathway,cytokine-cytokine receptor interaction,and adrenergic signaling in cardiomyocytes.Hypomethylated lncRNAs were mainly involved in 4 pathways:Renal cell carcinoma,tumor necrosis factor signaling pathway,transcriptional misregulation in cancer,and cytokine-cytokine receptor interaction.Additionally,MeRIP-PCR confirmed the changes in m^(6)A methylation levels in NR_033339,NR_122111,NR_130744,and NR_026800,consistent with microarray analysis.Real-time PCR also confirmed the significant upregulation of MAPK1 and NF-κB,key genes in the MAPK signaling pathway.Conclusion:This study reveals the m^(6)A modification patterns of lncRNAs in middle ear cholesteatoma,suggests a direction for further research into the role of lncRNA m^(6)A modification in the etiology of cholesteatoma.The findings provide potential therapeutic targets for the treatment of middle ear cholesteatoma.展开更多
文摘目的:探讨胆源性急性胰腺炎(biliary acute pancreatitis,BAP)、高脂血症急性胰腺炎(hyperlipidemic acute pancreatitis,HLAP)和胆脂复合型急性胰腺炎(biliary-hyperlipidemic acute pancreatitis,BHAP)的临床特点。方法:回顾性研究2013年1月6日至2017年6月17日,我院收治的急性胰腺炎患者286例。按照其发病原因进行分类,分为BAP、HLAP和BHAP组。对其年龄、性别、收治病区、发病时间、合并疾病、疾病严重程度、脏器功能支持、炎症指标进行比较,同时对各组患者的住院时间、手术率和死亡率等临床预后进行分析比较。结果:BHAP组和HLAP组较BAP组患者发病年龄更为年轻(P<0.01)。入院时的降钙素原(procalcitonin,PCT)BHAP组较HLAP组和BAP组明显升高(P<0.01)。3组患者机械通气(P<0.05)、肾脏替代治疗(P<0.01)、使用血管活性药物(P<0.05)差异有统计学意义。危重程度评估中改良Marshall评分BHAP组高于BAP组(P<0.05);急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluation Ⅱ,APACHE Ⅱ)评分及序贯器官功能衰竭评分(sequential organ failure assessment,SOFA)BHAP组>BAP组>HLAP组(均P<0.01);急性胰腺炎严重程度床边指数(bedside index for severity in acute pancreatitis,BISAP)BHAP组>HLAP组(P<0.01)和BAP组>HLAP组(P<0.05)。CT严重指数(computed tomography severity index,CTSI)BHAP组>BAP组(P<0.05)和BHAP组>HLAP组(P<0.01)。3组患者住院时间差异有统计学意义(P<0.05),BHAP组的住院时间长于HLAP组(P<0.01)。结论:BAP、HLAP和BHAP 3种不同病因的胰腺炎各有其临床特征,其中同时具有胆源性和高脂血症发病因素的BHAP更易发展为重症,住院时间更长。
文摘目的探讨血清低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)水平与冠心病患者冠状动脉病变的关系。方法经选择性冠状动脉造影328例,根据冠状动脉造影结果分为冠心病组和对照组;冠心病组根据病变范围分为单支病变、双支病变、多支病变;根据病变狭窄程度分为轻度、中度、重度狭窄组。分别测定其血脂水平。结果冠心病组甘油三酯、LDL-C和总胆固醇水平明显高于对照组。总胆固醇和LDL-C水平与冠状动脉病变呈正相关;双支病变组与三支病变组明显高于对照组及单支病变组(P<0.01),中度狭窄组和重度狭窄组明显高于对照组及轻度狭窄组(P<0.01)。结论总胆固醇与LDL-C能够反映冠心病患者冠状动脉的病变情况,其水平随冠状动脉病变范围及病变程度的加重而升高,可作为预测冠状动脉病变的一个因素。
基金supported by the National Natural Science Foundation(82071036,82000973)the Natural Science Foundation of Hunan Province(2022JJ30821,2019JJ50967)the Special Project for the Construction of Innovative Provinces in Hunan Province(2023SK4030),China。
文摘Objective:Middle ear cholesteatoma is a non-tumorous condition that typically leads to hearing loss,bone destruction,and other severe complications.Despite surgery being the primary treatment,the recurrence rate remains high.Therefore,exploring the molecular mechanisms underlying cholesteatoma is crucial for discovering new therapeutic approaches.This study aims to explore the involvement of N6-methyladenosine(m^(6)A)methylation in long non-coding RNAs(lncRNAs)in the biological functions and related pathways of middle ear cholesteatoma.Methods:The m^(6)A modification patterns of lncRNA in middle ear cholesteatoma tissues(n=5)and normal post-auricular skin tissues(n=5)were analyzed using an lncRNA m^(6)A transcriptome microarray.Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway analyses were conducted to identify potential biological functions and signaling pathways involved in the pathogenesis of middle ear cholesteatoma.Methylated RNA immunoprecipitation(MeRIP)-PCR was used to validate the m^(6)A modifications in cholesteatoma and normal skin tissues.Results:Compared with normal skin tissues,1525 lncRNAs were differentially methylated in middle ear cholesteatoma tissues,with 1048 showing hypermethylation and 477 showing hypomethylation[fold change(FC)≥3 or<1/3,P<0.05].GO enrichment analysis indicated that hypermethylated lncRNAs were involved in protein phosphatase inhibitor activity,neuron-neuron synapse,and regulation ofα-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid(AMPA)receptor activity.Hypomethylated lncRNAs were associated with mRNA methyltransferase activity,secretory granule membrane,and mRNA methylation.KEGG analysis revealed that hypermethylated lncRNAs were mainly associated with 5 pathways:the Hedgehog signaling pathway,viral protein interaction with cytokines and cytokine receptors,mitogen-activated protein kinase(MAPK)signaling pathway,cytokine-cytokine receptor interaction,and adrenergic signaling in cardiomyocytes.Hypomethylated lncRNAs were mainly involved in 4 pathways:Renal cell carcinoma,tumor necrosis factor signaling pathway,transcriptional misregulation in cancer,and cytokine-cytokine receptor interaction.Additionally,MeRIP-PCR confirmed the changes in m^(6)A methylation levels in NR_033339,NR_122111,NR_130744,and NR_026800,consistent with microarray analysis.Real-time PCR also confirmed the significant upregulation of MAPK1 and NF-κB,key genes in the MAPK signaling pathway.Conclusion:This study reveals the m^(6)A modification patterns of lncRNAs in middle ear cholesteatoma,suggests a direction for further research into the role of lncRNA m^(6)A modification in the etiology of cholesteatoma.The findings provide potential therapeutic targets for the treatment of middle ear cholesteatoma.
