LBIS® 小鼠瘦素 ELISA 试剂盒
LBIS® Leptin-Mouse
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LBIS® Leptin-Mouse
LBIS® 小鼠瘦素 ELISA 试剂盒
瘦素(Leptin)是一种分子量为16KD的蛋白质类激素。主要由白色脂肪组织产生,其它组织如褐色脂肪组织、胎盘、卵巢、骨骼肌、胃底部、乳腺上皮细胞、骨髓、下垂体、肝脏等也能检测到。其在大鼠和小鼠中有97%的同源性。瘦素在突变种肥胖小鼠中发现,是通过调节食欲和新陈代谢来参与至能量平衡的一种重要的激素。血液中瘦素的浓度会因为空腹和低热量饮食而降低,但进食后并不会有明显增加,只有肥胖即脂肪组织量增大的情况下才会增加,可反映身体脂肪量。瘦素进入大脑,通过抑制体内下丘脑神经肽Y(NPY)和刺鼠基因相关蛋白(AgRP)表达神经的受体,另外活化体内 α-MSH 表达神经,起到降低食欲,减少进食的作用。但是,对于严重肥胖的人,虽然他们血液中瘦素的浓度很高,但对瘦素有抗性,瘦素并不能发挥抑制食欲的作用。全身性脂肪萎缩病引起的瘦素降低或缺乏,会造成胰岛素抗性、糖尿病、脂肪肝、高甘油三酯血症等疾病。除此之外,瘦素也被认为与对动脉粥样硬化的免疫反应、能量平衡和性周期相关,与肺泡表面活性剂的产生也有关系。
◆特点
• 短时间测定(总的反应时间:3小时)
• 微量样品(标准操作:10 μL)可测
• 使用对环境无害的防腐剂
• 全部试剂均为液体,可直接使用
• 精密的测定精度和高再现性
◆构成
组成 |
状态 |
容量 |
(A)抗体固相化 96 孔板(干燥孔板) |
洗净后使用 |
96 wells(8×12)/1 块 |
(B)瘦素标准溶液(小鼠)(5,000 pg/mL) |
稀释后使用 |
500 μL/1 瓶 |
(C)缓冲液 |
即用 |
60 mL/1 瓶 |
(D)生物素结合抗瘦素抗体 |
稀释后使用 |
200 μL/1 瓶 |
(E)过氧化物・抗生物素蛋白结合物 |
稀释后使用 |
200 μL/1 瓶 |
(F)显色液(TMB) |
即用 |
12 mL/1 瓶 |
(H)反应终止液(1M H2SO4)※小心轻放 |
即用 |
12 mL/1 瓶 |
( I )浓缩洗净液(10×) |
稀释后使用 |
100 mL/1 瓶 |
封板膜 |
3 张 |
|
使用说明书 |
1 份 |
◆交叉反应
※交叉反应是浓度为 3,000 pg/mL 时的数据
动物种类 |
对象物质 |
反应性和反应率(%) |
Mouse |
Leptin |
100 |
α-MSH |
― |
|
IFN-γ |
― |
|
MCH |
― |
|
TNF-α |
― |
|
Rat |
Leptin |
31.5 |
Human |
Lepin |
+ |
+:存在交叉反应
―:不存在交叉反应
◆样品信息
小鼠的血清、血浆
10 μL/well(标准操作)
※样品量在10~50 μL范围内可以配制
◆测量范围
20.6~5,000 pg/mL(样品量50 μL)
103~25,000 pg/mL(样品量10 μL)
◆Validation data
精度测试(组内变异)
样品 |
A |
B |
C |
1 |
3818 |
846 |
405 |
2 |
3810 |
856 |
405 |
3 |
3979 |
842 |
394 |
4 |
4047 |
851 |
392 |
5 |
4046 |
856 |
420 |
mean |
3940 |
850 |
403 |
SD |
118 |
6.18 |
11.2 |
CV(%) |
3.0 |
0.73 |
2.8 |
单位:pg/mL
重复性测试(组间变异)
测量日/样品 |
D |
E |
第0天 |
5007 |
1052 |
第1天 |
5126 |
1063 |
第2天 |
5069 |
1027 |
第3天 |
5000 |
1000 |
mean |
5051 |
1035 |
SD |
59.3 |
28.0 |
CV(%) |
1.2 |
2.7 |
单位:pg/mL n=2
加标回收测试
样品F
添加量 |
实测值 |
回收量 |
回收率(%) |
0.00 |
994.9 |
– |
– |
337 |
1334.0 |
339.1 |
101 |
1061 |
2099.0 |
1104 |
104 |
1238 |
2284.0 |
1289 |
104 |
单位:pg/mL n=2
样品G
添加量 |
实测值 |
回收量 |
回收率(%) |
0.00 |
1996 |
– |
– |
2731 |
4741 |
2745 |
101 |
4682 |
6444 |
4448 |
95.0 |
5462 |
7717 |
5721 |
105 |
单位:pg/mL n=2
稀释直线性测试
用稀释缓冲液分5次连续稀释2个血清样品的测量结果,线性回归方程的R2在0.9992~0.9997之间。
欲了解更多相关产品信息,请点击文字:LBIS® 疾病相关动物模型ELISA试剂盒系列
相关资料
说明书 |
ELISA试剂盒选择指南①② |
ELISA试剂盒选择指③④ |
参考文献
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Down-Regulation of Hepatic Stearoyl-CoA Desaturase-1 Expression by Fucoxanthin via Leptin Signaling in Diabetic/Obese KK-A y Mice. Beppu F., Hosokawa M., Yim M-J., Shinoda T., Miyashita K. Lipids, Vol.48(5), p449-455, May 2013. |
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产品编号 | 产品名称 | 产品规格 | 产品等级 | 备注 |
631-10389 | (AKRLP-011)LBIS® Mouse Leptin ELISA kit LBIS®小鼠瘦素 ELISA试剂盒 |
96 tests | – | – |