Page last updated: 2024-11-12

peptide phi

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

Peptide PHI: A 27-amino acid peptide with histidine at the N-terminal and isoleucine amide at the C-terminal. The exact amino acid composition of the peptide is species dependent. The peptide is secreted in the intestine, but is found in the nervous system, many organs, and in the majority of peripheral tissues. It has a wide range of biological actions, affecting the cardiovascular, gastrointestinal, respiratory, and central nervous systems. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID16132386
MeSH IDM0016232

Synonyms (4)

Synonym
peptide phi
peptide histidine isoleucine
ccris 7230
96849-38-6

Research Excerpts

Dosage Studied

ExcerptRelevanceReference
" The dose-response curves were broad and each peptide accelerated dissociation of bound 125I-CGRP."( Mechanism of action of calcitonin gene-related peptide in stimulating pancreatic enzyme secretion.
Gardner, JD; Jensen, RT; Jones, SW; Noguchi, M; Villanueva, ML; Zhou, ZC, 1986
)
0.27
" The dose-response curves for VIP- and PHI-stimulated cAMP accumulation were superimposable on those for PRL secretion."( Vasoactive intestinal peptide and peptide with N-terminal histidine and C-terminal isoleucine increase prolactin secretion in cultured rat pituitary cells (GH4C1) via a cAMP-dependent mechanism which involves transient elevation of intracellular Ca2+.
Bjøro, T; Gautvik, KM; Gordeladze, J; Haug, E; Iversen, JG; Ostberg, BC; Sand, O; Torjesen, PA, 1987
)
0.27
" The contractile responses to VIP were unchanged after beta-adrenergic blockade with nadolol at a concentration (10 microM) that shifted the ISO dose-response curve two to three orders of magnitude to the right."( Contractile effects of cardiac neuropeptides in isolated canine atrial and ventricular muscles.
Balasubramaniam, A; Grupp, G; Grupp, IL; Rigel, DF, 1989
)
0.28
" The dose-response curves of VIP and PHI were superimposable with and ID50 of 3 X 10(-8) mol/l, and their combined effect was additive."( Peptides PHI and VIP: comparison between vascular and nonvascular smooth muscle effect in rabbit uterus.
Bardrum, B; Fahrenkrug, J; Ottesen, B, 1986
)
0.27
" Compared to the saline control, each dose of VIP produced a significant increase in duodenal bicarbonate secretion in a dose-response manner."( Secretin, VIP, and PHI stimulate rat proximal duodenal surface epithelial bicarbonate secretion in vivo.
Emas, S; Isenberg, JI; Johansson, C; Mutt, V; Smedfors, B; Tatemoto, K; Wallin, B, 1984
)
0.27
" In contrast, PHI was an effective stimulant in doses up to 15 nmol/rat but had no effect on either ACTH or CORT at a dose of 30 nmol/rat thus yielding a bell-shaped dose-response curve."( VIP antagonist demonstrates differences in VIP- and PHI-mediated stimulation and inhibition of ACTH and corticosterone secretion in rats.
Alexander, LD; Sander, LD, 1995
)
0.29
" Vagal ligation but not perivagal capsaicin treatment reduced the inhibitory effect of secretin on bethanechol-stimulated contraction of isolated forestomach muscle strips, causing a right shift in the dose-response curve."( Vagus nerve modulates secretin binding sites in the rat forestomach.
Chang, TM; Chey, WY; Kwon, HY; Lee, KY, 1999
)
0.3
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (443)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990245 (55.30)18.7374
1990's154 (34.76)18.2507
2000's36 (8.13)29.6817
2010's6 (1.35)24.3611
2020's2 (0.45)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 7.89

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be weak demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index7.89 (24.57)
Research Supply Index6.19 (2.92)
Research Growth Index4.08 (4.65)
Search Engine Demand Index0.00 (26.88)
Search Engine Supply Index0.00 (0.95)

This Compound (7.89)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials5 (1.04%)5.53%
Reviews39 (8.09%)6.00%
Case Studies2 (0.41%)4.05%
Observational0 (0.00%)0.25%
Other436 (90.46%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]