脂质 (Lipid) 是中性脂肪、类脂及其衍生物的总称,其共同的物理特性是不溶于水,易溶于有机溶剂 (如乙醇、乙醚等)。油红O是很强的脂溶剂和染脂剂,较易与甘油三脂结合呈小脂滴状,与磷脂结合力稍差。其染色原理一般认为是物理上的溶液作用或吸附作用,借溶液作用使脂肪染色。染料在冰冻切片内脂质的溶解度较原溶剂中的溶解度更大,所以在染色时染料就从有机溶剂转移入脂质而使脂肪染色。 改良油红O染色液主要用于显示组织器官的脂肪变性和类脂质的异常沉着,常发生于肝、肾、心等实质脏器的脂肪变性,细胞内出现多数中性脂肪滴;鉴别和诊断脂肪组织中所发生的肿瘤及其性质。标本不采用含乙醇的固定液 (如需要固定可采用10%福尔马林),样本不采用石蜡切片,需用冰冻切片或碳蜡切片,脂肪的阳性染色结果呈橘黄至红色,但具体颜色因脂质浓度而定。 774829
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Modified Oil Red O Staining Kit
CAS number:unknown molecular formula:
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Specs
| Chinese alias | 改良脂肪染色试剂盒 | ||
| English alias | Modified Lipid Staining Kit | ||
| CAS number | unknown | molecular formula | |
| molecular weight | - | Exact mass | BioReagent |
| PSA | - | logp | - |
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