AZP-531

Modify Date: 2024-01-06 00:05:36

AZP-531 Structure
AZP-531 structure
Common Name AZP-531
CAS Number 1088543-62-7 Molecular Weight 962.021
Density 1.6±0.1 g/cm3 Boiling Point N/A
Molecular Formula C40H63N15O13 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of AZP-531


AZP-531 is an analogue of unacylated ghrelin designed to improve glycaemic control and reduce weight.

 Names

Name AZP-531
Synonym More Synonyms

 AZP-531 Biological Activity

Description AZP-531 is an analogue of unacylated ghrelin designed to improve glycaemic control and reduce weight.
Related Catalog
In Vitro AZP-531 exerts survival effects on pancreatic b-cells and human pancreatic islets which is comparable to that of UAG, the parent molecule. AZP-531 is very stable in human plasma in vitro. No degradation is observed after 1 day of incubation at 37°C[1].
In Vivo The highest concentration of this peptide is 4350 ng/mL, and the majority of samples are above the limit of quantification (1 ng/mL)[1]. AZP-531 infusion prevents the increase in body weight caused by high-fat diet in mice. AZP-531 treatment prevents high-fat diet-induced proinflammatory effects, stimulates expression of mitochondrial function markers in brown adipose tissue, and prevents development of a prediabetic metabolic state. AZP-531 also prevents a high-fat diet-induced increase in acyl ghrelin levels[2]. AZP-531 is well tolerated. Single- and multiple-dose pharmokinetic variables are similar. Maximum AZP-531 concentrations are typically reached at 1 h post-dose. Observed maximum concentration and area under the curve are dose-proportional. The mean terminal half-life is 2–3 h. AZP-531 (≥15 μg/kg) significantly improves glucose concentrations, without increasing insulin levels, suggesting an insulin-sensitizing effect. AZP-531 decreases mean body weight by 2.6 kg (vs 0.8 kg for placebo). Glucose variables improve in all groups, including placebo, suggesting a study effect in uncontrolled patients at baseline. AZP-531 60 μg/kg reduces HbA1c by 0.4% (vs 0.2% for placebo) and body weight by 2.1 kg (vs 1.3 kg for placebo)[3].
Animal Admin Rats: AZP-531 is administered in sterile water to obtain a 1 mg/kg and 0.3 mg/kg dose in the rat through both intravenous and subcutaneous routes. Blood is collected at t=0, 2, 5, 15, 30, 60, 120, 240, 360, 480 and 1440 min post-administration for the intravenous dose route and t=0, 15, 30, 60, 120, 240, 360, 480 and 1440 min post-administration for the subcutaneous route[1]. Mice: AZP531 is prepared in saline. C57BL/6J mice are infused with saline, DAG, or AZP531 continuously for 4 weeks, and fed either normal diet (ND) or normal diet for 2 weeks followed by a high-fat diet (HFD) for 2 weeks. Peptides are infused at 4 nM/kg/h[2].
References

[1]. Julien M, et al. In vitro and in vivo stability and pharmacokinetic profile of unacylated ghrelin (UAG) analogues. Eur J Pharm Sci. 2012 Nov 20;47(4):625-35.

[2]. Delhanty PJ, et al. Des-acyl ghrelin analogs prevent high-fat-diet-induced dysregulation of glucosehomeostasis. FASEB J. 2013 Apr;27(4):1690-700.

[3]. Allas S, et al. Safety, tolerability, pharmacokinetics and pharmacodynamics of AZP-531, a first-in-class analogue of unacylated ghrelin, in healthy and overweight/obese subjects and subjects with type 2 diabetes. Diabetes Obes Metab. 2016 Sep;18(9):868-74.

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Molecular Formula C40H63N15O13
Molecular Weight 962.021
Exact Mass 961.472961
LogP -9.96
Index of Refraction 1.707
Storage condition -20°C

 Synonyms

Cyclo(L-arginyl-L-valyl-L-glutaminyl-L-seryl-L-prolyl-L-α-glutamyl-L-histidyl-L-glutaminyl)
9VHD7J6363
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