产品说明书

Leptin (22-56), human

Print
Chemical Structure| 183598-56-3 同义名 : -
CAS号 : 183598-56-3
货号 : A251480
分子式 : C171H298N50O56
纯度 : 98%
分子量 : 3950.5
MDL号 : MFCD00802382
存储条件:

粉末 Keep in dark place,Sealed in dry,Store in freezer, under -20°C

液体 -20°C:3-6个月-80°C:12个月

溶解度 :

DMSO: 105 mg/mL(26.58 mM),注意:DMSO长时间开封后,会吸水并导致溶解能力下降,请避免使用长期开封的DMSO

动物实验配方:
生物活性
描述 Leptin is an adipocyte hormone important in appetite, energy homeostasis, neuroendocrine and haematopoietic function [1]. Leptin or leptin fragment administration results in a potent inhibition of ACTH and glucocorticoid secretion. Ob-Ra and Ob-Rb subtypes of leptin receptors are expressed in rat adrenocortical cells, and they interact differently in vivo and in vitro with native leptin and leptin fragments. Leptin (22-56), human is a fragment of native leptin which can interact with isoform of Ob-R. Leptin (22-56), human inhibited corticosterone production from rat adrenocortical-cell cultures suggesting that this region of the leptin molecule may be responsible for the direct inhibitory effect on secretion and growth of leptin on cultured rat adreno¬cortical cells [2]. Baseline leptin (22-56) levels were higher in haemodialysis (HD) patients vs. controls(7.14 +/- 7.04 ng/ml vs. 1.86 +/- 1.84, P < 0.02). Leptin(22-56) had a significant negative correlation with the erythropoietin to haematocrit ratio (T = -0.42, P < 0.01) suggesting Leptin(22-56) may favour haematopoiesis [1].
实验方案
1mg 5mg 10mg

1 mM

5 mM

10 mM

0.25mL

0.05mL

0.03mL

1.27mL

0.25mL

0.13mL

2.53mL

0.51mL

0.25mL

参考文献

[1]Stamatiadis DN. Elevated leptin fragments in renal failure correlate with BMI and haematopoiesis and are normalized by haemodialysis. Clin Endocrinol (Oxf). 2004 Apr;60(4):434-41.

[2]Malendowicz LK. Effects of leptin and leptin fragments on corticosterone secretion and growth of cultured rat adrenocortical cells. Int J Mol Med. 2004 Nov;14(5):873-7.