怎样写医学论文

医学科研论文是医学科研工作的总结。它概括科研工作的过程,反映该项科研的成果和价值,也体现出该项科研的水平和作者的科学素养。 写医学论文的目的在于总结科研工作,进行学术交流,促进医学发展。因此,要写一篇较好的论文,首先要体现出它的科学性。论文     

心理应激与重危心律失常

过去一般认为,导致死亡的重危心律失常大多由急性心肌梗塞或严重器质性心脏病所致。近十多年来很多报告证明心理应激可引起重危心律失常(室速或室颤),病人可突然晕厥或猝死。心理应激是一种危险因素,值得我们重视和研究。     

晚期青光眼的房水动力学变化

目的：观察晚期青光眼高眼压对睫状体功能的损害作用及对角膜透明性的影响。方法：应用扫描荧光光度计及Ｓｃｈｉｏｔｚ电子眼压计分别测定１５只正常眼和１５只晚期原发性青光眼眼压、房水排出率和房水流畅系数,并观察角膜的透明性。结果：晚期青光眼眼房水排出率显著下降,下降程度与眼压水平及病程成正比。房水排出率降低至０．８μｌ／ｍｉｎ。角膜出现水肿混浊,房水排出率下降愈甚,角膜透明性改变愈明显。结论：持续高眼压将     

The postsynaptic effect of taxol on rat neuromuscular junction

Taxol was used as a tool reagent and the function of the microtubules (MTs) beneath thepostsynaptic membrane was studied in an isolated non-uniformly stretched muscle preparation of ratdiaphragm.After exposure to taxol (20 μmol/L,10min),the amplitude of acetylcholine potential ofinnervated muscle endplate was decreased by 30%,but the lime course of AChP and membrane po-tential remained unchanged.The results indicate that taxol can inhibit the responsiveness ofpostsynapfic membrane.It is therefore suggested that the site of action of taxol indudng inhibitionof postsynapfic responsiveness in neuromuscular junction may be the microtubules beneath thepostsynapfic membrane.     

The Effect of Electrical Stimulation of the Lateral Hypothalamic Area on the Pain Threshold of Rats

Effect of electrical stimulation of lateral hypothalamic area(LHA)on pain threshold of rats was studied by using tailflickresponse to radiant heat as the index of pain response and theinfluence of intraperitoneally injected naloxone on the analgesiceffect of LHA was observed.The result showed that pain thresholdof the animals raised 52.5% in average after LHA stimulation andthis analgesic action of LHA decreased significantly after injecionof naloxone.Quantitatively the analgesic effect of LHA was muchweaker than that of electroaccupuncture.The possible underlyingmechanisms were discussed.     

豆腐果甙镇痛作用的初步探讨

用自制的电阻丝热辐射器给鼠尾热伤害性刺激,观察豆腐果甙(对甲醛苯—D-吡喃阿鲁糖甙,简写DGD)对大鼠痛甩尾反应时间阈值的影响。腹腔注射2%DGD1.5ml/100g后,阈值明显升高并持续30分钟以上;同时施予电针和DGD(2%0.75ml/100g,ip)后,阈值显著升高并可持续到停针后50分钟。显示DGD有镇痛和延长针麻效果的作用。     

红豆生物碱对大鼠神经肌肉接头的突触后作用

在不均匀牵拉法制动的离体大鼠膈神经膈肌标本上,用微管聚合药红豆生物碱探讨了终板膜的微管在神经肌肉接头乙酰胆碱受体兴奋中的作用。红豆生物碱(20μmol/L,10min)使有神经支配的膈肌终板区乙酰胆碱电位幅度下降了30％;但不影响其时程和膜电位。结果表明该药对神经肌肉接头有突触后抑制作用。其作用机制可能通过影响微管而致使终板膜反应性下降。     

气功外气对秋水仙素酒精溶液紫外吸收光谱的影响

秋水仙素酒精溶液(3×10~(-5)mol/L)在气功外气作用约10min后,紫外吸收光谱波长为350nm的特征峰被移至330nm,吸光度约增大一倍.暗藏在距气功师约1.5m书包内的相同溶液,也出现了同样变化.非气功人员数人模拟发功动作后,与对照组之间无任何差异.提示气功外气改变了该溶液的分子结构.     

Effect of Microiontophoretically Applied GABA on Medullary Respiratory Neurons in the Region of Nucleus Tractus Solitarius of Rabbit

Experiments were performed on 19 vagotomized,curareparalyzed andartificially ventilated rabbits.3-5 barrel glass micropipettes were used torecord the extracellular discharges and to apply the ionized substances tested.Medullary respiratory units located in the region of Nucleus Treactus Soli-tarius were tested for their responsiveness to iontophoretically appliedGABA.GABA tended to inhibit not only inspiratory units but also expi-ratory ones.Of 60 units tested,49 were inhibited and the inhibitoryeffect of GABA had much to do with its quantity ejected.Phrenic nervedischarges were unchanged while the discharges of respiratory units weredepressed by GABA.The inhibitory effect of GABA could be blocked bypicrotoxin.Our results indicate that GABA may be one of the importantinhibitory neurotransmitters in the medullary“respiratory center”.