Background Atrial fibrillation （AF） is associated with inflammation and endothelial dysfunction. However, the association between inflammation （as indexed by high-sensitivity C-reactive protein, hs-CRP） and endoth...Background Atrial fibrillation （AF） is associated with inflammation and endothelial dysfunction. However, the association between inflammation （as indexed by high-sensitivity C-reactive protein, hs-CRP） and endothelial function [as indexed by big endothelin-1 （ET-1）] in AF patients remains unclear. Methods We enrolled 128 patients with lone AF, among which 83 had paroxysmal AF, and 45 had persistent AF. Eighty-two age- and gender-matched controls of paroxysmal supraventricular tachycardia without AF history were evaluated. Plasma hs-CRP, big ET-1 levels and other clinical characteristics were compared among the groups. Results Patients with persistent AF had higher hs-CRP concentrations than those with paroxysmal AF （P 〈 0.05）, both groups had higher hs-CRP level than controls （P 〈 0.05）. Patients with persistent AF had higher big ET-1 level than those with paroxysmal AF, although the difference did not reach the statistical significance （P 〉 0.05）, and both groups had higher big ET-1 levels than controls （P 〈 0.05）. Multiple regression analyses revealed hs-CRP as an inde- pendent determinant of AF （P 〈 0.001）. Further adjusted for big ET-1, both big ET-1 and hs-CRP were independent predictors for AF （P 〈 0.001）, but the odds ratio for hs-CRP in predicting AF attenuated from 8.043 to 3.241. There was a positive relation between hs-CRP level and big ET-1 level in paroxysmal AF patients （r = 0.563, P 〈 0.05）, however, the relationship in persistent AF patients was poor （r = 0.094, P 〈 0.05）. Conclusions Both plasma hs-CRP and big ET-1 levels are elevated in lone AF patients, and are associated with AF. In paroxysmal lone AF patients, there were significant positive correlations between plasma hs-CRP level and big ET- 1 level.展开更多
Most E26 transformation-specific （ETS） transcription factors are involved in the pathogenesis and progression of cancer. This is in part due to the roles of ETS transcription factors in basic biological processes su...Most E26 transformation-specific （ETS） transcription factors are involved in the pathogenesis and progression of cancer. This is in part due to the roles of ETS transcription factors in basic biological processes such as growth, proliferation, and differentiation, and also because of their regulatory functions that have physiological relevance in tumorigenesis, immunity, and basal cellular homoeostasis. A member of the E74-1ike factor （ELF） subfamily of the ETS transcription factor family--myeloid elf-l-Uke factor （MEF）, designated as ELF4~has been shown to be critically involved in immune response and signalling, osteogenesis, adipo- genesis, cancer, and stem cell quiescence. ELF4 carries out these functions as a transcriptional activator or through interactions with its partner proteins. Mutations in ELF4 cause aberrant interactions and induce downstream processes that may lead to dis- eased cells. Knowing how ELF4 impinges on certain cellular processes and how it is regulated in the cells can lead to a better understanding of the physiological and pathological consequences of modulated ELF4 activity.展开更多
文摘Background Atrial fibrillation （AF） is associated with inflammation and endothelial dysfunction. However, the association between inflammation （as indexed by high-sensitivity C-reactive protein, hs-CRP） and endothelial function [as indexed by big endothelin-1 （ET-1）] in AF patients remains unclear. Methods We enrolled 128 patients with lone AF, among which 83 had paroxysmal AF, and 45 had persistent AF. Eighty-two age- and gender-matched controls of paroxysmal supraventricular tachycardia without AF history were evaluated. Plasma hs-CRP, big ET-1 levels and other clinical characteristics were compared among the groups. Results Patients with persistent AF had higher hs-CRP concentrations than those with paroxysmal AF （P 〈 0.05）, both groups had higher hs-CRP level than controls （P 〈 0.05）. Patients with persistent AF had higher big ET-1 level than those with paroxysmal AF, although the difference did not reach the statistical significance （P 〉 0.05）, and both groups had higher big ET-1 levels than controls （P 〈 0.05）. Multiple regression analyses revealed hs-CRP as an inde- pendent determinant of AF （P 〈 0.001）. Further adjusted for big ET-1, both big ET-1 and hs-CRP were independent predictors for AF （P 〈 0.001）, but the odds ratio for hs-CRP in predicting AF attenuated from 8.043 to 3.241. There was a positive relation between hs-CRP level and big ET-1 level in paroxysmal AF patients （r = 0.563, P 〈 0.05）, however, the relationship in persistent AF patients was poor （r = 0.094, P 〈 0.05）. Conclusions Both plasma hs-CRP and big ET-1 levels are elevated in lone AF patients, and are associated with AF. In paroxysmal lone AF patients, there were significant positive correlations between plasma hs-CRP level and big ET- 1 level.
文摘Most E26 transformation-specific （ETS） transcription factors are involved in the pathogenesis and progression of cancer. This is in part due to the roles of ETS transcription factors in basic biological processes such as growth, proliferation, and differentiation, and also because of their regulatory functions that have physiological relevance in tumorigenesis, immunity, and basal cellular homoeostasis. A member of the E74-1ike factor （ELF） subfamily of the ETS transcription factor family--myeloid elf-l-Uke factor （MEF）, designated as ELF4~has been shown to be critically involved in immune response and signalling, osteogenesis, adipo- genesis, cancer, and stem cell quiescence. ELF4 carries out these functions as a transcriptional activator or through interactions with its partner proteins. Mutations in ELF4 cause aberrant interactions and induce downstream processes that may lead to dis- eased cells. Knowing how ELF4 impinges on certain cellular processes and how it is regulated in the cells can lead to a better understanding of the physiological and pathological consequences of modulated ELF4 activity.
