石化还可能同时涉及将死亡的动植物的原有物质与不同成分的矿物质进行交换的作用。
Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition.
比如，矮人的短小身材可能是受高死亡率地区的群体早生早育影响而产生的副作用，而不是自身的适应性。
For instance, the short stature of pygmies could be a side effect of selection for early childbearing in populations where mortality is high, rather than an adaptation in itself.
科学家们在一项对1300多个家庭的研究中发现了这些基因。虽然还不清楚在形成阿尔茨海默症过程中这些基因起到的确切作用，但研究者认为，它们很可能导致了神经细胞的死亡。
The genes emerged from a study of over 1, 300 families, and although the genes' exact role in Alzheimer's isn't known yet, researchers think they may contribute to the death of nerve cells.
环境保护主义者说，温室气体对黄河的死亡起了作用，但是，经济学家警告中国的减速可能导致不稳定性，甚至动荡。
Environmentalists say that greenhouse gases are contributing to the death of the Yellow River, but economists warn that a slowdown in China could lead to political instability-even chaos.
作用于生存和死亡信号的这些靶向药物可能会为我们提供一个新的治疗策略。
Drugs that target the survival and cell death signals themselves may present another new strategy.
此外，房颤患者可能出现医源性死亡，例如，抗心律失常药物导致的促心律失常作用或抗凝药物导致的出血。
But they can also die of iatrogenic conditions for example proarrhythmia effect from anti-arrhythmia drugs or hemorrhage from anticoagulants.
伴发高血压病、糖尿病、脑血管病或肾功能衰竭等病史可能有促发AMI早期死亡的作用；
The history of hypertension, diabetes mellitus, stroke or renal failure may have some effects in accelerate the early death after AMI.
死亡受体在胰腺癌中高表达，可能在TRAIL诱导胰腺癌细胞凋亡的机制中发挥重要的作用。
High death receptor expression may play an important role in TRAIL inducing pancreatic carcinoma apoptosis.
调查人员已经询问过当时和他在一起的医生柯纳尔·默里，并且调查在杰克逊的死亡上，处方药物可能有什么作用。
Investigators have questioned the physician who was with him, Conrad Murray, and are looking into the role prescription drugs might have played in Jackson's death.
由于铁可导致DA神经元死亡，因此铁含量的增加可能是DA含量减少的原因之一，甲磺酸去铁胺具有保护DA神经元的作用。
Elevation of iron content in SN is one of the mechanisms responsible for the reduction of DA content. Desferrioxamine mesylate may exert a protective action on dopaminergic neurons.
结论复灌开始后连续应用GM 1治疗对脑缺血造成的记忆障碍有明显改善作用，这可能与其减少迟发性神经元死亡有关。
Conclusion During recirculation treatment with GM1 exhibited a promising effect of improvement of memory impairment by BIR, and it may be related the reduction of DND.
可能的副作用包括：口干舌燥、恶心、呕吐、积水、腹痛、产生幻觉、痴呆、精神病、昏迷、死亡和口臭。
Side affects may include: dry mouth, nausea, vomiting, water retention, painful rectal itch, hallucination, dementia, psychosis, coma, death and halitosis.
可能的副作用包括：口干舌燥、恶心、呕吐、积水、腹痛、产生幻觉、痴呆、精神病、昏迷、死亡和口臭。
Side affects may include: dry mouth, nausea, vomiting, water retention, painful rectal itch, hallucination, dementia, psychosis, coma, death and halitosis.
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