可导致的

Thus, patients who are intolerant of penicillin may also be intolerant of cephalosporins, and further, cephalosporins may induce anaphylaxis in patients with a history of penicillin anaphylaxis.

内酰胺类产品是一类具有β内酰胺环化学结构的产品，具有潜在过敏性可导致人过敏，由于对β内酰胺类的不耐受性，超敏性在此类产品性也可能存在而引起过敏，有例子表明在青霉素和头孢类之间存在交叉污染，因此，不能耐受青霉素的病人也可有耐受头孢产品，而且，头孢也可诱发有青霉素过敏史的人过敏。

Initial stage of disease of acerbity blood of high make water can not have any symptoms, but the part can evolve and cause acute arthritis, chalkstone, kidney stone and uric acid nephrosis. The content that 3 health teach 3 · 1 balanced diet, reducing acid of make water of tall purine food is the final result that purine metabolizes, fructose is absorbed can bring about acid of nucleotide of purine of the gland inside body to produce increase too much, promote make water to be generated acerbitily then, reason should be fed less contain the food with much fructose, the intake of daily purine should 50 Mg.

高尿酸血症初期可无任何症状，但部分可演变而诱发急性关节炎、痛风石、肾结石及尿酸肾病。3健康教育的内容3·1均衡饮食，减少高嘌呤饮食尿酸是嘌呤代谢的最终产物，果糖摄入过多可导致体内腺嘌呤核苷酸产生增多，进而促进尿酸的生成，故应少食含果糖多的食物，每日嘌呤的摄入量应50 mg。

The fat embolus, the mechanical emphraxis matter to blood vessel and with chemo-toxicity to tissue, lead to clinical syndrome that major manifestation was dyspnoea.

这些脂肪栓子对血管的机械阻塞及对组织的化学毒性作用，可导致以肺部病变为主，呼吸困难为主要表现的临床综合征，严重影响呼吸、循环功能，甚至导致死亡。

Ultimately, vulnerable groups of neurons atrophy and die in a process that may involve excitotoxicity (overstimulation of neurotransmitter receptors on neuronal surface membranes), collapse of calcium homeostasis, inflammation, and depletion of energy and growth factors. A form of apolipoprotein E, apoE4, contributes to the abnormal accumulation of A and tau, but probably also damages mitochondria and the cellular cytoskeleton. A , tau, apoE and -synuclein interact with many other molecules and modulate diverse signalling cascades that regulate neuronal activity and survival.

最后，易感神经元会萎缩直至死亡，原因可能有兴奋性中毒（神经递质对神经元表面受体的过度刺激引起），钙稳态失衡，炎症反应，能量和生长因子的耗尽。apoE4的产生可导致A肽和tau蛋白的异常聚合，可能也损害线粒体和细胞骨架。A肽、tau蛋白、apoE和突触核蛋白可与很多分子反应，也可调节不同信号级联反应，这些级联反应对于维持神经元活动性和生存性意义重大。

Injectable agents are the most rapid and reliable and are preferred when venipuncture can be accomplished without causing fear to the animal or unnecessary risk to the operator.

可注射的药剂肯定是最为迅速以及可靠的首选。静脉注射可以在不导致动物害怕或者是导致操作者风险的情况下顺利完成。

The deletion of [A7-B7] disulfide bond in proinsulin resulted in a significant decrease of α-helix content of the molecule and a great increase in sensitivity to tryptic digestion.

结果表明，A7 B7二硫键缺失可导致胰岛素原α螺旋明显减少以及对胰蛋白酶的酶切敏感性显著增加，其对胰岛素原结构的影响主要导致了受体结合活性的大幅度降低。

Oxygen-containing free radicals are produced when oxygen is not completely reduced to water in energy-producing oxidation reaction.

如果在物质氧化产生能量过程中，氧未被完全还原成水，可导致氧自由基的产生，氧自由基也可转变成一些非自由基氧活性物质。

The amount of soluble pentosan of the doughs apparently increased with added enzyme, and was similar at the optimal and excessive levels of enzyme addition (120 μg/g), but the WEAX from the latter doughs was degraded to a greater degree.

加酶面团中可溶性戊聚糖含量显著增加，但加酶过量可导致面团中水可提取的阿拉伯木聚糖降解程度加剧。

Helicobacter pylori infection causes the defect of mismatch repair in eucaryotes, and microsatellite instability in gastric epithelial cells, which increases the spontaneous mutation of relative genes, and finally results in the susceptibility to tumors in human bodies.

H pylori 感染导致了真核细胞错配修复(mismatch repair， MMR)系统的缺陷，在胃上皮细胞中引起微卫星不稳定(micrsatellite instable， MSI)，使相关基因自发突变率增加，最终可导致机体对肿瘤的易感。

Rnsults There were brain areas that distributing of radioactivity diminution in interictal SPECT in all 69 cases ,and there were brain areas distributing of radioactivity heighten in ictal SPECT in all 69 cases.

结论伽玛刀治疗脑软化灶导致的癫痫是有效的，而且无痛苦、无出血、无感染、无死亡、术后恢复快，其中以局限性发作效果最好；对脑软化灶导致癫痫的患者行SPECT检查，只有发作间期放射性分布减低和发作期增高在同一脑区才被确认为致痫灶；以上方法可明显缩小靶区体积。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。