Biochem/physiol Actions

In hemodialysis patients increased plasma levels of MR-pro-ADM (mid-regional-pro-adrenomedullin) is linked with decreased survival. This is due to increased vasodilation in response to higher levels of MR-pro-ADM; lower levels of this peptide result in increased vasoconstriction and hence, better prognosis. This peptide is also associated with increased cardiovascular mortality in dialysis patients. In type II diabetic patients, MR-pro-ADM peptide is linked with renal outcome, as adrenomedullin (ADM) gene regualates susceptibility to nephropathic progression.

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General description

MR-pro-ADM (mid-regional-pro-adrenomedullin) is a 47-residue long peptide, produced during posttranslational processing of adrenomedullin. It has a molecular weight of 5.1kDa. Adrenomedullin (ADM) is a vasodilator peptide which is produced and released by a wide variety of cells such as, macrophages, fibroblasts, cardiomyocytes etc. MR-pro-ADM functions as a substitute marker for ADM. This peptide is coded by the gene localized to human chromosome 11p15.4 which is composed of four exons and three introns.

Immunogen

synthetic peptide corresponding to the internal region of human Adrenomedullin (ADM)

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Specificity

Anti-MR-Pro ADM (Internal) recognizes human MR-Pro ADM.

Storage and Stability

For continuous use, store at 2–8 °C for up to one month. For extended storage freeze in working aliquots. Repeated freezing and thawing is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours.