心房肌

人心房肌M带处的Tm小管和Mm微丝

TM - tubule and mm-filaments at the m - band of atrial myocardium in man

结论IR可诱导窦房结及其周围心房肌细胞呈梯度不均一凋亡，且窦房结中央凋亡率最低。

Conclusion IR can induce inhomogenous apoptosis in SAN and its peripheral atrial myocardium , and the apoptosis rate of the SAN center is the lowest compared with the peripheral region and it 's peripheral atrial myocardium .

P波反映的是心房肌除极过程的电位变化。

P wave reflects the potential distribution of ventricular depolarization .

应用TUNEL法检测各组患者左心房肌细胞凋亡，计算其凋亡指数（AI），分析比较它们之间的关系。

The apoptosis index ( AI ) was measured by TUNEL .

左室功能减退窦性心律患者心房肌短暂外向钾电流mRNA表达的变化

Alterations of mRNA Expression of Transient Outward K Current in Atria of Patients With Sinus Rhythm and Decreased Left Ventricular Function

心房肌间质纤维化；最突出的表现为ECM的合成与降解的失衡。

The mostly manifestation is the imbalance of synthesis and degradation of extracellular matrix .

用图像分析仪检测窦房结内P细胞、T细胞、心房肌细胞、胶原纤维胞浆吸光度（A值）。

The P cells and T cells inside the sinoatrial node , atrial muscle cells and absorptance ( A ) value of cytoplasm in collagen fibers were detected with image analyzer .

结论慢性Af患者心房肌细胞内存在钙超载。

Conclusion : Chronic Af can lead to intracellular calcium overload in human atrial myocytes .

结论：经快速起搏24h后，心房肌细胞发生了离子通道以及电重构；

Conclusion : Rapid stimulation of cultured atrial cells produces ion channel and electrical remodeling .

其中ANP主要由心房肌细胞分泌，BNP主要是由心室肌细胞合成和释放，CNP主要在中枢神经系统和血管内皮细胞分泌。

ANP is synthesized and secreted in the atrial myocytes .

1周力竭训练后窦房结内P细胞、T细胞与心房肌细胞病理改变减轻，但胶原纤维的染色强度增加。

The pathological changes of P cells , T cells and atrial muscle cells in sinoatrial nodes after one-week exhaustive exercise were reduced , whereas the stained intensity of collagen fibers was reinforced .

AngⅡ对人心房肌细胞膜钙通道电流的影响及卡维地洛的拮抗作用

Effects of Angiotensin ⅱ on Calcium Channel Current of Human Atrial Myocyte and Its Antagonism by Carvedilol

室间隔缺损儿童心房肌细胞Cx43蛋白的表达

Connexin 43 expression in atrial myocytes of ventricular septal defect children

本实验对更年期SD大鼠心房肌细胞进行了超微结构观察并对心房内分泌肌细胞内的特殊颗粒作了形态计量分析。

The ultrastructure of atrial cell in climacteric SD rats was observed and the morphometry analysis of atrial specific granules was finished .

目的：研究克班宁（Cre）对豚鼠离体心房肌生理特性的影响。

Objective : To study the effect of Cre on the physiological properties .

目的：探讨卡托普利对慢性房颤（atrialfibrillation，AF）实验犬心房肌Ca2+调控蛋白基因表达的影响。

Objective : To evaluate the effect of captopril on the gene expression of atrial calcium handling proteins in dogs with chronic atrial fibrillation .

左旋甲状腺素对犬心房肌连接蛋白Cx43表达的影响

Effect of Thyroid Hormone on the Expression and Distribution of Cx43 in Atriums of Canine

Tamoxifen对人心房肌细胞超快速激活延迟整流钾电流的作用

Effects of Tamoxifen on ultra-rapid activated delayed rectifier K ~ + current in human atrial myocytes

慢性房颤病人心房肌组织重构及Ca～（2+）-CaMKⅡ-CREB信号通路的研究

Study on Structural Remodeling and Ca ~( 2 + ) - CaMK ⅱ - CREB Signaling Pathway in Atrial Myocardium of Pathway in Atrial Myocardium of Patients with Chronic Atrial Fibrillation

目的：研究迷走神经递质乙酰胆碱（ACh）对离体豚鼠心房肌细胞动作电位（AP）的影响及其对心房肌的脱敏，探讨脱敏可能发生的机制。

AIM : To investigate the mechanism underlying the effects of ACh on desensitization of action potential in guinea pigs atrial muscles .

心房肌APD的延长可能与心房肌中分布的特殊离子通道被阻滞有关。

The prolonged effect of APD on atrium may be related to the inhibition of special ion channels .

方法：运用放射性配基受体结合法测定不同动物心房肌和心室肌M受体密度及解离常数（Kd）值。

METHODS : Using radioligand binding assay , the M-receptor density and dissociation constant were observed in atrial and ventricular myocardium of above animals .

目的：研究组织胺H2受体阻断剂－西米替丁（CMT）对离体豚鼠心房肌动作电位和收缩活动的影响。

Objective : To study the effects of Cimetidine ( CMT ) on electric and mechanical activities of guinea pig atrial muscles .

2成人Cx43表达在心房肌非均质分布于细胞侧面连接处和端闰盘处；

Cx43 positive granules distributed irregularly in cell side surface and cytoplasm as well as intercalated disk in adult atrium .

1次力竭训练组窦房结内P细胞、T细胞和心房肌细胞胞浆A值均明显低于对照组和中等强度训练组（P0.05～0.01）。

The A value of cytoplasm in P cells , T cells and atrial muscle cells in the once exhaustive exercise group were obviously lower than those in the control group and medium intensity exercise group ( P 0.05-0.01 ) .

目的探讨心房肌缝隙连接（GJ）蛋白变化与心房颤动（房颤）间的关系。

Objective To evaluate the relationship between changes of connexin protein of gap junction ( GJ ) and atrial fibrillation .

乙酰胆碱兴奋钾电流IK（Ach）是维持人体心房肌细胞静息电位的主要钾电流之一。

IK ( Ach ) is one of the main K + currents to maintain the Rest Potential of human atrial muscle cells .

表明正常的心房肌细胞在ISO作用下，与形成AP复极相有关的1相和2相的离子转运发生了改变，Ito2对心房肌细胞AP1相形成起着重要作用。

These results indicated that ionic transport were changed by ISO perfusion in atrium myocytes and Ito played an important role in the phase 1 repolarization of AP .

采用组织块酶消化法分离7例AF（AF组）和14例非AF（非AF组）患者的右心耳心房肌细胞，利用全细胞记录技术观察单个心房肌细胞的Ito。

Specimens of human atrial appendage were obtained from 21 patients ( 7 with AF , 14 without AF ) . Single atrial cells were isolated by tissue chunk enzymatic dissociation techniques .

结论：AngⅡ可引起人心房肌细胞内Ca2+超载，卡维地洛能显著减轻AngⅡ诱导的人心房肌细胞内Ca2+超载。

Conclusion : Ang ⅱ induced intracellular calcium overload in human atrial myocyte and carvedilol can decrease [ Ca 2 + ] I overload in human atrial myocyte induced by Ang ⅱ .