Cited by 96Neuropeptides and Animal PhysiologyTrauma, Hemostasis, Coagulopathy, ResuscitationAdrenal Hormones and Disorders

α-MSH and other ACTH fragments improve cardiovascular function and survival in experimental hemorrhagic shock

Bertolini, Alfio, Guarini, Salvatore, Rompianesi, Elena, Ferrari, William·1986·European Journal of Pharmacology

Abstract

Hypovolemic shock was produced in rats by withdrawing about 50% of the estimated total blood volume. Following mean arterial pressure stabilization in the range of 15-25 mm Hg, with a pulse pressure of 7-12 mm Hg, the rats were given intravenous bolus injections either of ACTH fragments or of saline. The following ACTH fragments or analogs were used: ACTH-(4-10), alpha-MSH, ACTH-(1-16), ACTH-(1-17), ACTH-(1-18), [Nle4,D-Phe7]alpha-MSH, [beta-Ala1,Lys17]ACTH-(1-17)-4-amino-n-butilamide (alsactide). ACTH-(1-24) and human synthetic ACTH-(1-39) were used for comparison. All animals treated with saline died in 22.51 +/- 3.62 min. Treatment with ACTH fragments (160 micrograms/kg i.v.) increased blood pressure and pulse amplitude, the effect starting within a few minutes, gradually increasing, and reaching a maximum in 15-30 min. The blood and pulse pressure increases were sustained, remaining almost stable until the end of the 2 h recording. Two out of nine rats treated with alsactide, which was the least active, died within 2 h after treatment, while all rats treated with the other ACTH fragments or analogs were still surviving at that time. Both on a weight and on a molar basis, the most active was ACTH-(1-24), followed by ACTH-(1-16), by the alpha-MSH analog [Nle4,D-Phe7]ACTH-(1-13), by ACTH-(1-18) and by ACTH-(1-17). The present results show that melanocortins reverse otherwise fatal hypovolemic shock, and suggest a new therapeutic approach for shock treatment.(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1016/0014-2999(86)90179-2

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63 of 63 references verified0 citation errors · 0 not checkable

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  • Microinjections of α-MSH in the nucleus ambiguus exert excitatory effects on parasympathetic preganglionic neurons via activation of MC4R, resulting in increased vagal input to the heart and bradycardia responses.

    “For instance, microinjections of α-MSH in the nucleus ambiguus (nAMB) exerted excitatory effects on parasympathetic preganglionic neurons via activation of MC4R, resulting in increased vagal input to the heart and bradycardia responses [74–76].”

    From Role of the brain melanocortins in blood pressure regulation (2017) · cites this paper as [76]

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Authors
Bertolini, A., Guarini, S., Rompianesi, E., & Ferrari, W.
Affiliations
University of Modena and Reggio Emilia (IT)
Corresponding author
Bertolini, Alfio
Venue
European Journal of Pharmacology
Publisher
Elsevier BV
Published
1986-10
Volume
130
Issue
1-2
Pages
19-26
ISSN
0014-2999 (ISSN-L)
OpenAlex
W2041672850
Cited by
96
References
63
Citations by year
2024: 3 · 2022: 1 · 2018: 1 · 2017: 1 · 2015: 1 · 2012: 4
FWCI
2.72
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Trauma, Hemostasis, Coagulopathy, Resuscitation
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
alpha-melanocyte-stimulating hormone, ACTH fragments, hypovolemic shock, hemorrhagic shock, melanocortin peptides, blood pressure, survival, shock therapy, ACTH analogs
MeSH terms
Adrenocorticotropic Hormone, Animals, Blood Pressure, Female, Hemodynamics, Melanocyte-Stimulating Hormones, Peptide Fragments, Rats, Inbred Strains, Shock, Hemorrhagic, Rats

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