有机磷中毒诱发心肌梗死1例

患者男 ,5 4岁。因与家人吵架后自服敌敌畏 5 0ｍｌ,约 5ｍｉｎ后出现头昏、乏力、恶心、呕吐。被家人发现后送入医院。既往体健 ,入院查体 :体温 3 6 0℃ ,脉搏 68次 ｍｉｎ,呼吸 2 0次 ｍｉｎ,血压 140 80ｍｍＨｇ ,患者神志清 ,精神差 ,周身皮肤潮湿多汗 ,双侧瞳孔等大等圆 ,直径约 1ｍｍ ,对光反射灵敏 ,口唇无紫绀。双肺呼吸音粗 ,肺底闻及湿罗音。心率 68次 ｍｉｎ ,律不齐 ,闻及早搏 ,约 10～ 12次 ｍｉｎ ,心音低钝 ,腹软 ,剑突下压痛 ,无反跳痛 ,肝脾未及。双下肢无水肿。辅助检查 :血清胆碱酯酶活力 15Ｕ Ｌ(正常值 3 0～ 80Ｕ …     

雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

Objective To investigate the change of apoptosis in LNCaP cells after inhibition of autophagic process under androgen removal conditions. Methods The autophagic level was deter-mined by using confocal microscopy and RT-PCR. The DAPI staining was used to indicate the apopto-sis of LNCaP cells after inhibition of autophagic by 3-MA. Also, Z-VAD-FMK was used to extend the apoptosis results. Results ①Androgen deprivation led to increased autophagy in LNCaP cells. LN-CaP cells cultured in complete medium(CM) presented low autophagic process with 1.9 scores. After 24 hours, the punetate GFP-LC3 structures were accumulated in the cells cultured in serum-free medi-um (SF)(2.64 scores). In contrast, the number of punctate GFP-LC3 remained at a very low level (1.85 scores), when cells were incubated with DHT in SFA(serum-free medium+DHT). Statistical analysis showed the significant difference between SF and SFA (P<0.01). Semiquantitative RT-PCR was employed to examine the mRNA expression of LC3. Indeed, cells grown in the medium without serum had a higher LC3 mRNA expression with the highest at 12 hour time point as compared with the cells grown in CM. DHT treatment reduced the level of LC3 mRNA. ②Blockage of autophagy by 3-MA increased the apoptosis of LNCaP cells. LNCaP cells in SF and SFA just presented a basal level of apoptosis, which is (3.19±1.09)% and (3.01±0.33)% , respectively. Under androgen-free con-ditions, inhibition of autophagy by 3-MA could increase apoptosis significantly(10. 90±2.91%). While Z-VAD-FMK, a pan Caspase inhibitor, was able to suppress this apoptotic process to the level of (1.16±0.52)%, which was statistically significant(P<0.01). Conclusions Androgen removal can lead to the increase of autophagy in LNCaP cells. Moreover, inhibition of autophagy promotes the occurrence of apoptosis.     

雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

目的 探讨雄激素剥夺条件下阻断自噬后LNCaP细胞凋亡变化与半胱天冬酶(caspase)激活的关系.方法 应用激光共聚焦显微镜、RT-PCR方法观察雄激素剥夺致细胞自噬增加后,利用DAPI染色观察细胞凋亡变化及药物抑制caspase后对凋亡的影响.结果 ①雄激素去除后LNCaP细胞自噬体增加,标准培养基(CM)培养下LNCaP细胞自噬体数量为1.90分;无血清培养基(SF)中细胞自噬体数量增高为2.64分;加入双氧睾酮(SFA组)后细胞自噬体下降至1.85分(P<0.01).CM中LNCaP细胞LC3 mRNA表达率为23%,血清饥饿12 h后,LC3表达量上调至100%,而SFA组LC3 mRNA表达量为86%;血清饥饿24 h后,SF组LC3 mRNA表达量为62%,SFA组为35%.②SF组和SFA组LNCaP细胞基础凋亡率分别为(3.19±1.09)0A和(3.01±0.33)%,加入3-甲基腺嘌呤(3-MA)阻断自噬24 h后,SF组凋亡率为(10.90±2.91)%,SFA组为(4.63±1.69)%.SF+3-MA组中加入Z-VAD-FMK后,细胞凋亡减至(1.16±0.52)%.组间差异有统计学意义(P<0.01).结论 剥夺雄激素后LNCaP细胞中自噬明显增加,阻断自噬后凋亡发生率增加.     

以血栓形成为首发症状的阵发性睡眠性血红蛋白尿（PNH）1例

患者 ,老年男性 ,67岁 ,因头昏 ,言语不清 ,左侧肢体活动障碍 12小时入院。既往有缺血性心脏病史 10余年 ,半月前患者左下肢有静脉血栓形成 ,曾在当地医院给予中药治疗。入院查体 :体温 3 6.4℃ ,脉搏 80次 /分 ,血压 14 / 10ｋＰａ ,呼吸 2 0次 /分 ,神志清 ,中度贫血貌 ,口唇无紫绀 ,双肺呼吸音清 ,未闻及罗音 ,心率 80次 /分 ,律齐。腹软 ,无压痛。左侧鼻唇沟略浅 ,口角右歪 ,伸舌左偏。左侧肢体肌力Ⅳ级 ,肌张力正常 ,病理征 ( - )。心电图示Ｖ3～Ｖ6 ＳＴ段下移 0 .0 5ｍＶ ,Ｔ波低平。颅脑ＣＴ示右基底节脑梗塞。髂穿骨髓常规示幼红细…     

腹腔镜联合十二指肠镜同期治疗胆囊结石合并肝外型肝胆管结石疗效观察

目的观察对胆囊结石合并肝外型肝胆管结石患者采用双镜(腹腔镜和十二指肠镜)联合治疗的临床效果。方法收集110例胆囊结石合并肝外型肝胆管结石患者作为研究对象,以患者及患属对治疗、此次研究知情同意为前提,根据临床不同治疗方式将其分为研究组(双镜同期治疗)、对照组(常规小切口开腹治疗)两个组别,病例数分别为60例、50例,观察治疗效果及并发症发生情况差异。结果同对照组相比研究组患者手术时间更短、术后下床活动时间早,且住院天数也更少(P0.05);研究组并发症发生率5.0%明显较对照组的18%更低(P0.05)。结论腹腔镜联合十二指肠镜同期治疗胆囊结石合并肝外型肝胆管结石效果好,术后下床早,恢复快,是一种新型有效肝胆部结石治疗手段。     

雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

Objective To investigate the change of apoptosis in LNCaP cells after inhibition of autophagic process under androgen removal conditions. Methods The autophagic level was deter-mined by using confocal microscopy and RT-PCR. The DAPI staining was used to indicate the apopto-sis of LNCaP cells after inhibition of autophagic by 3-MA. Also, Z-VAD-FMK was used to extend the apoptosis results. Results ①Androgen deprivation led to increased autophagy in LNCaP cells. LN-CaP cells cultured in complete medium(CM) presented low autophagic process with 1.9 scores. After 24 hours, the punetate GFP-LC3 structures were accumulated in the cells cultured in serum-free medi-um (SF)(2.64 scores). In contrast, the number of punctate GFP-LC3 remained at a very low level (1.85 scores), when cells were incubated with DHT in SFA(serum-free medium+DHT). Statistical analysis showed the significant difference between SF and SFA (P<0.01). Semiquantitative RT-PCR was employed to examine the mRNA expression of LC3. Indeed, cells grown in the medium without serum had a higher LC3 mRNA expression with the highest at 12 hour time point as compared with the cells grown in CM. DHT treatment reduced the level of LC3 mRNA. ②Blockage of autophagy by 3-MA increased the apoptosis of LNCaP cells. LNCaP cells in SF and SFA just presented a basal level of apoptosis, which is (3.19±1.09)% and (3.01±0.33)% , respectively. Under androgen-free con-ditions, inhibition of autophagy by 3-MA could increase apoptosis significantly(10. 90±2.91%). While Z-VAD-FMK, a pan Caspase inhibitor, was able to suppress this apoptotic process to the level of (1.16±0.52)%, which was statistically significant(P<0.01). Conclusions Androgen removal can lead to the increase of autophagy in LNCaP cells. Moreover, inhibition of autophagy promotes the occurrence of apoptosis.     

雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

Objective To investigate the change of apoptosis in LNCaP cells after inhibition of autophagic process under androgen removal conditions. Methods The autophagic level was deter-mined by using confocal microscopy and RT-PCR. The DAPI staining was used to indicate the apopto-sis of LNCaP cells after inhibition of autophagic by 3-MA. Also, Z-VAD-FMK was used to extend the apoptosis results. Results ①Androgen deprivation led to increased autophagy in LNCaP cells. LN-CaP cells cultured in complete medium(CM) presented low autophagic process with 1.9 scores. After 24 hours, the punetate GFP-LC3 structures were accumulated in the cells cultured in serum-free medi-um (SF)(2.64 scores). In contrast, the number of punctate GFP-LC3 remained at a very low level (1.85 scores), when cells were incubated with DHT in SFA(serum-free medium+DHT). Statistical analysis showed the significant difference between SF and SFA (P<0.01). Semiquantitative RT-PCR was employed to examine the mRNA expression of LC3. Indeed, cells grown in the medium without serum had a higher LC3 mRNA expression with the highest at 12 hour time point as compared with the cells grown in CM. DHT treatment reduced the level of LC3 mRNA. ②Blockage of autophagy by 3-MA increased the apoptosis of LNCaP cells. LNCaP cells in SF and SFA just presented a basal level of apoptosis, which is (3.19±1.09)% and (3.01±0.33)% , respectively. Under androgen-free con-ditions, inhibition of autophagy by 3-MA could increase apoptosis significantly(10. 90±2.91%). While Z-VAD-FMK, a pan Caspase inhibitor, was able to suppress this apoptotic process to the level of (1.16±0.52)%, which was statistically significant(P<0.01). Conclusions Androgen removal can lead to the increase of autophagy in LNCaP cells. Moreover, inhibition of autophagy promotes the occurrence of apoptosis.     

雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

Objective To investigate the change of apoptosis in LNCaP cells after inhibition of autophagic process under androgen removal conditions. Methods The autophagic level was deter-mined by using confocal microscopy and RT-PCR. The DAPI staining was used to indicate the apopto-sis of LNCaP cells after inhibition of autophagic by 3-MA. Also, Z-VAD-FMK was used to extend the apoptosis results. Results ①Androgen deprivation led to increased autophagy in LNCaP cells. LN-CaP cells cultured in complete medium(CM) presented low autophagic process with 1.9 scores. After 24 hours, the punetate GFP-LC3 structures were accumulated in the cells cultured in serum-free medi-um (SF)(2.64 scores). In contrast, the number of punctate GFP-LC3 remained at a very low level (1.85 scores), when cells were incubated with DHT in SFA(serum-free medium+DHT). Statistical analysis showed the significant difference between SF and SFA (P<0.01). Semiquantitative RT-PCR was employed to examine the mRNA expression of LC3. Indeed, cells grown in the medium without serum had a higher LC3 mRNA expression with the highest at 12 hour time point as compared with the cells grown in CM. DHT treatment reduced the level of LC3 mRNA. ②Blockage of autophagy by 3-MA increased the apoptosis of LNCaP cells. LNCaP cells in SF and SFA just presented a basal level of apoptosis, which is (3.19±1.09)% and (3.01±0.33)% , respectively. Under androgen-free con-ditions, inhibition of autophagy by 3-MA could increase apoptosis significantly(10. 90±2.91%). While Z-VAD-FMK, a pan Caspase inhibitor, was able to suppress this apoptotic process to the level of (1.16±0.52)%, which was statistically significant(P<0.01). Conclusions Androgen removal can lead to the increase of autophagy in LNCaP cells. Moreover, inhibition of autophagy promotes the occurrence of apoptosis.     

高压氧疗法结合应用冬眠灵治疗脑外伤后精神症状237例体会

脑外伤病人伤后除了出现头痛、头晕、恶心、呕吐等颅内压增高症状外，部分病人尚存在伤后烦躁、易怒及淡漠等情绪改变或思维联想障碍、妄想、幻听、行为障碍等精神病症状。我们自１９９４年始，将高压氧疗法与冬眠灵结合应用，对２３７例脑外伤后精神症状明显的病人加以治...     

尿中骨桥蛋白的初步分离与鉴定

骨桥蛋白（ｏｓｔｅｏｐｏｎｔｉｎ，ＯＰＮ）是一种富含唾液酸的磷酸化糖蛋白，近来的研究发现，在体外ＯＰＮ具有抑制草酸钙晶体生长的活性。收集健康成年男性尿液２０Ｌ，经超滤、浓缩及不同的蛋白质层析方法进行分离。最后得到的蛋白质分离液经ＳＤＳＰＡＧＥ电泳和...