D-myo-Inositol-2,3,5,6-tetraph

Microinjection of myo-Inositol(1,4,5)trisphosphate and Other Calcium-Mobilizing Agents into Intact Adherent Cells

4,5-bisphosphate to produce the second messengers, myo -inositol(1,4,5)trisphosphate [Ins(1,4,5)P3 ] and diacylglycerol (1 ). Ins(1,4,5)P3 interacts with a specific receptor that is a ligand-gated channel that allows mobilization of non-mitochondrial intracellular

Sodium MRI

Sodium (23 Na) imaging has a place somewhere between 1 H-MRI and MR spectroscopy (MRS). Like MRS it potentially provides information on metabolic processes, but only one single resonance of ionic 23 Na is observed. Therefore pulse sequences

钠 sodium

Na。原子量 23。所有植物都含有钠，但对茎叶植物来说恐不是不可缺少的。钠对包括甜菜在内的若干盐生植物的生长，以及对适应高盐环境的蓝藻类的生长都具有促进作用。尤其是对鱼腥藻（ Anabaena）是不可缺少的，在缺乏钾时钠可以部分地代替钾的作用。对许多动物来说，钠是维持体液渗透压不可缺少的成分，具有增加活细胞透性的作用。另外，对哺乳类来说，钠对血量的维持、体液的贮存、以及皮肤和肾脏的排泄都有夫系，这种钠的代谢是受副肾皮质激素（盐皮质激素）的调节。钠是脊椎动物血浆组成中的主要阳离子，在人体