Neuromedin B

≥90% (HPLC)

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
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PubChem Substance ID:

Quality Level


≥90% (HPLC)

storage temp.


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InChI key


Amino Acid Sequence


General description

Neuromedin B (NMB) belongs to the bombesin (BN)-like peptide family in mammals. It is located in the gastrointestinal tract and central nervous system.


Neuromedin B (NMB) has been used as a bombesin (BN)-like peptide:
  • for injection in mice to understand energy expenditure and oxygen consumption and CO2 production
  • to study its effects on the thyrotropin (TSH) and prolactin (PRL) release in vitro
  • to analyze its effects on angiogenesis through the activation of extracellular signal-regulated kinase (ERK) and protein kinase B (Akt) in endothelial cells

Biochem/physiol Actions

Neuromedin B (NMB) exhibits its effects by binding to the cell surface receptors. It facilitates its action on several contractile organs including, the stomach, intestine, esophagus, gall bladder, urinary bladder, and uterus. It also plays a role in food intake, hypothermia, and thermoregulation. NMB is involved in exocrine and endocrine secretion of gastrin, insulin, cholecystokinin, enteroglucagon, and gastric inhibitory peptide. It also acts as an autocrine growth factor in non-small cell lung cancer.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. N3762.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Z Merali et al.
Behavioural brain research, 198(1), 105-112 (2008-11-19)
Repeated exposure to stressors was reported to increase the expression of arginine-vasopressin (AVP), especially in corticotropin-releasing hormone (CRH) neurons co-expressing AVP, within the hypothalamus. This may increase the potential for subsequent stressor-elicited enhancement of hypothalamic-pituitary-adrenal (HPA) functioning as these peptides...
J M Siegfried et al.
Pulmonary pharmacology & therapeutics, 12(5), 291-302 (1999-11-05)
Gastrin-releasing peptide (GRP), a member of the bombesin family of peptides, has been shown to have mitogenic activity in small cell lung carcinoma (SCLC), and to be produced by SCLC in an autocrine fashion. In this report, we demonstrate that...
Cheryl D Stimpson et al.
American journal of human biology : the official journal of the Human Biology Council, 23(1), 22-28 (2010-12-09)
Von Economo neurons (VENs) are defined by their thin, elongated cell body and long dendrites projecting from apical and basal ends. These distinctive neurons are mostly present in anterior cingulate (ACC) and fronto-insular (FI) cortex, with particularly high densities in...
L E Heasley
Oncogene, 20(13), 1563-1569 (2001-04-21)
Autocrine and paracrine signaling leading to stimulation of tumor cell growth is a common theme in human cancers. In addition to polypeptide growth factors such as EGF family members which signal through receptor tyrosine kinases, accumulating evidence supports the autocrine...
Rachel Moraes Moreira et al.
Life sciences, 72(8), 917-923 (2002-12-21)
Neuromedin B(NB), a bombesin-like peptide, has been shown to inhibit thyrotropin (TSH) release in pituitary explants of male rats and to stimulate Prolactin (PRL) release in male pituitary cell cultures. We investigated the effect of estrogen status of female rats...

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