抗癫痫药奥卡西平属于
以下哪一项肺功能测定对阻塞性肺气肿的诊断有决定性意义( )
RV/TLC>40%,MVV<预计值80%,FEV₁>正常60%
RV/TLC>40%,MVV>预计值80%,FEV₁<正常60%
RV/TLC>40%,FEV₁<预计值80%,FEV₁/FVC<正常70%
RV/TLC<40%,MVV<预计值80%,FEV₁>正常60%
RV/TLC<40%,MVV<预计值80%,FEV₁<正常60%
患者,男,40岁。精神分裂症病史18年,第3次入院。入院后给予氟哌啶醇治疗,3天后加至30mg/d,第7天出现肌肉僵硬、震颤、吞咽困难,T39.8℃,意识不清,大汗淋漓、心动过速。实验室检查:WBC增高,血清肌酸激酶增多。
该患者出现的情况最可能是
女,42岁。劳累时心悸,气短2年,腹胀、尿少3天。心电图示心房颤动,心室率110次/分,胸部X射线示心影常明显增大,心胸比值60%,肺淤血。有助于该患者诊断的辅助检查是( )。
心电向量图
超声心动图
心导管检查
心电图运动负荷试验
心脏放射性核素检查
Passage1
Lonely people, it seems, are at greater riskthan the gregarious of developing illnesses associated with chronicinflammation, such as heart disease and certain cancers. A paper published lastyear in the Public Library of Science, Medicine, shows the effect on mortalityof loneliness is comparable with thatof smoking and drinking after examining the results of 148 previous studies andcontrolled for factors such as age and pre-existing illness.
Steven Cole of the University ofCalifornia, Los Angeles, thinks he may know why this is so. He told theAmerican Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr.Cole harvested samples of white blood cells from both lonely and gregariouspeople. He then analysed the activity of their genes, as measured by theproduction of a substance called messenger RNA. This molecule carries instructions from the genes telling a cellwhich proteins to make. The level of messenger RNA from most genes was the samein both types of people. There were several dozen genes, however, that wereless active m the lonely, and several dozen others that were more active.Moreover, both the less active andthe more active gene types came from a small number of functional groups.
Broadly speaking, the genes less active in thelonely were those involved in staving off viral infections. Those that weremore active were involved in protecting against bacteria. Dr. Cole suspectsthis could help explain not only why the lonely are iller, but how, inevolutionary terms, this odd state of affairs has come about.
The crucial bit ofthe puzzle is that viruses have to be caught from another infected individual andthey are usually species-specific. Bacteria, in contrast, often just lurk inthe environment, and may thrive on manyhosts. The gregarious are therefore at greater risk than the lonely ofcatching viruses, and Dr. Cole thussuggests that past evolution has created a mechanism which causes white cellsto respond appropriately. Conversely, the lonely are better off ramping uptheir protection against bacterialinfection, which is a bigger relative risk to them.
What Dr. Cole seemsto have revealed, then, is a mechanism by which social environment reachesinside a person's body and tweaks its genome so that it responds appropriately.It is not that the lonely and the gregarious are genetically different fromeach other. Rather, their genes are regulated differently, according to howsociable an individual is. Dr. Cole thinks this regulation is part of a widermechanism that tunes individuals to the circumstances they find themselves in.
Dr. Cole made an analysis of the activity of the genes by_____.
对不同耐火等级建筑的疏散走道进行检查,疏散走道两侧隔墙燃烧性能和耐火极限不符合规范要求的是( )。
男,50岁。吸烟史30年,支气管镜活检可见鳞状上皮和支气管腺体,属于下列哪种病理改变( )。
支气管黏膜肥大
支气管黏膜化生
支气管黏膜萎缩
支气管腺癌
支气管鳞状细胞癌