目的探讨辛伐他汀(S imvastatin,S im)对血管升压素(AVP)诱导的新生SD大鼠心脏成纤维细胞(CF)增殖和胶原合成作用的影响,为防治高血压左室肥厚提供理论依据。方法以培养的新生SD大鼠CF为实验模型,采用胰酶消化、差速贴壁法培养CF,运用MT...目的探讨辛伐他汀(S imvastatin,S im)对血管升压素(AVP)诱导的新生SD大鼠心脏成纤维细胞(CF)增殖和胶原合成作用的影响,为防治高血压左室肥厚提供理论依据。方法以培养的新生SD大鼠CF为实验模型,采用胰酶消化、差速贴壁法培养CF,运用MTT比色法和3H-脯氨酸掺入法分别观察不同浓度S im对AVP诱导CF增殖和胶原合成的作用及甲羟戊酸(m evalonate,MVA)干预的影响。结果①CF的3H-脯氨酸掺入率随着S im干预浓度的增加而降低,其中1μmol/L和10μmol/L S im组的3H-脯氨酸掺入率分别为(3.67±0.39)mBq/cell和(2.35±0.36)mBq/cell,明显低于对照组(5.01±0.58)mBq/cell(P<0.01);②MTT比色法A490值随S im浓度的增加而降低,其中1μmol/L和10μmol/L S im组的A490值分别为0.221±0.038和0.163±0.021,均较对照组A490值(0.395±0.039)显著降低(P<0.01);③10μmol/L S im+1 mmol/L MVA组的3H-脯氨酸掺入率和MTT比色法A490值分别为(5.38±0.72)mBq/cell和0.419±0.051,均显著高于同组10μmol/L S im(P<0.01)。结论S im抑制AVP诱导的CF增殖和胶原合成,其机制可能通过MVA代谢途径实现。展开更多
A case of 71-year-old man with variant angina treated by intracoronary stent was reported. Thepatient suffered from rest chest pain characterized by transient ST-segment elevation involving inferior leads.He had been ...A case of 71-year-old man with variant angina treated by intracoronary stent was reported. Thepatient suffered from rest chest pain characterized by transient ST-segment elevation involving inferior leads.He had been frsequently attacked by syncope due to transient second degree or complete atrioventricular blockand ventricular tachycardia. Coronary arteriography revealed significant spasm in the midportion of the rightcoronary artery, which occurred at a mild fixed coronary obstructive lesion. The patient still had angina accompanied by syncope in hospital despite maximal drug therapy, so an intracoronary stent was implanted tothe patient. The patient was free of angina during a follow-up of 8 months thereafter.展开更多
文摘目的探讨辛伐他汀(S imvastatin,S im)对血管升压素(AVP)诱导的新生SD大鼠心脏成纤维细胞(CF)增殖和胶原合成作用的影响,为防治高血压左室肥厚提供理论依据。方法以培养的新生SD大鼠CF为实验模型,采用胰酶消化、差速贴壁法培养CF,运用MTT比色法和3H-脯氨酸掺入法分别观察不同浓度S im对AVP诱导CF增殖和胶原合成的作用及甲羟戊酸(m evalonate,MVA)干预的影响。结果①CF的3H-脯氨酸掺入率随着S im干预浓度的增加而降低,其中1μmol/L和10μmol/L S im组的3H-脯氨酸掺入率分别为(3.67±0.39)mBq/cell和(2.35±0.36)mBq/cell,明显低于对照组(5.01±0.58)mBq/cell(P<0.01);②MTT比色法A490值随S im浓度的增加而降低,其中1μmol/L和10μmol/L S im组的A490值分别为0.221±0.038和0.163±0.021,均较对照组A490值(0.395±0.039)显著降低(P<0.01);③10μmol/L S im+1 mmol/L MVA组的3H-脯氨酸掺入率和MTT比色法A490值分别为(5.38±0.72)mBq/cell和0.419±0.051,均显著高于同组10μmol/L S im(P<0.01)。结论S im抑制AVP诱导的CF增殖和胶原合成,其机制可能通过MVA代谢途径实现。
文摘A case of 71-year-old man with variant angina treated by intracoronary stent was reported. Thepatient suffered from rest chest pain characterized by transient ST-segment elevation involving inferior leads.He had been frsequently attacked by syncope due to transient second degree or complete atrioventricular blockand ventricular tachycardia. Coronary arteriography revealed significant spasm in the midportion of the rightcoronary artery, which occurred at a mild fixed coronary obstructive lesion. The patient still had angina accompanied by syncope in hospital despite maximal drug therapy, so an intracoronary stent was implanted tothe patient. The patient was free of angina during a follow-up of 8 months thereafter.