GABA含量高时，神经元无法形成新的连结，同时大脑的学习能力也会降低；而含量低时，神经细胞可自由形成新的连结。
High levels of GABA can prevent neurons forming new connections - and slow down the brain's ability to learn - while low levels free nerve cells to create new brain circuitry.
“自由基(比如由阳光照射而形成的粒子)会损害皮肤细胞膜，更会对细胞DNA构成潜在的威胁。”Heller说。
"Free radicals — like the kind formed from sun exposure — damage the membrane of skin cells, potentially allowing damage to the DNA of that cell," says Heller.
促氧化作用将产生自由基并形成过氧化氢，而科学家假定后者可以杀伤肿瘤细胞。
Prooxidants would generate free radicals and the formation of hydrogen peroxide, which, the scientists hypothesized, might kill tumor cells.
这意味着，所有的过程，涉及氧气，氧气包括用于细胞呼吸，导致形成自由基。
That means that all processes involving oxygen, including the oxygen used in cellular respiration, leads to the formation of free radicals.
当胚发育到4—6个细胞时，在胚囊珠孔瑞的游离核之间先形成细胞壁。细胞壁的形成是以自由壁的方式从珠孔端到合点端自外向内进行。
The free cell wall formation occurs first in the micropylar end when the embryo is 4-6 celled stage, then to the chalazal end and the center.
能清除自由基，抑制癌细胞形成，提高人体免疫力。
Can cleared freedom base restrain cancer cell to form enhance power of human body immunity.
结果心肌缺血-再灌注时能量耗竭、自由基形成、钙超载、细胞凋亡等过程中线粒体发挥重要的作用。
Results the mitochondrion plays an crucial role in the processes of energy burn-out, free radical formation, calcium overload and cells apoptosis during myocardial ischemia-reperfusion.
然而，由于原细胞已受到自由基的破坏，便无法给予新形成细胞正确的复制讯息。
However, because the original cell has received the free radical the destruction, then is unable to give the new formative cell correct duplication news.
紫外线、自由基形成剂、某些药物等均可引起皮肤角朊细胞和成纤维细胞的凋亡。
Ultraviolet irradiation, free radicals and some drugs can cause skin keratinocyte or fibroblast apoptosis.
根据以上结果，重点讨论了胆红素自由基对肝细胞损伤的化学本质及其与胆结石形成的关系。
Based on these evidences, the essential chemical aspects of BR free radical damage to rat hepatocyte and the correlationship between BR free radical and formation of pigment gallstone were considered.
根据以上结果，重点讨论了胆红素自由基对肝细胞损伤的化学本质及其与胆结石形成的关系。
Based on these evidences, the essential chemical aspects of BR free radical damage to rat hepatocyte and the correlationship between BR free radical and formation of pigment gallstone were considered.
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