RGD Reference Report - Role of substance P and bradykinin in acute pancreatitis induced by secretory phospholipase A2. - Rat Genome Database

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Role of substance P and bradykinin in acute pancreatitis induced by secretory phospholipase A2.

Authors: Camargo, EA  Ferreira, T  Ribela, MT  De Nucci, G  Landucci, EC  Antunes, E 
Citation: Camargo EA, etal., Pancreas. 2008 Jul;37(1):50-5.
RGD ID: 2304266
Pubmed: PMID:18580444   (View Abstract at PubMed)
DOI: DOI:10.1097/MPA.0b013e3185d9b9b   (Journal Full-text)

OBJECTIVES: Secretory phospholipases A2 (sPLA2s) induce acute pancreatitis when injected into the common bile duct of rats. Substance P via neurokinin 1 (NK-1) receptors and bradykinin via B2 receptors are described to play important roles in the pathophysiology of acute pancreatitis. This study was undertaken to evaluate the role of substance P and bradykinin in the sPLA2-induced pancreatitis. METHODS: Rats were submitted to the common bile duct injection of sPLA2 obtained from Naja mocambique mocambique venom at 300 microg/kg. At 4 hours thereafter, measurement of pancreatic plasma extravasation, pancreatic and lung myeloperoxidase (MPO), serum amylase, and serum tumor necrosis factor alpha levels were evaluated. RESULTS: Injection of sPLA2 significantly increased all parameters evaluated. Pretreatment with either the NK-1 receptor antagonist SR140333 or the B2 receptor antagonist icatibant largely reduced the increased pancreatic plasma extravasation and circulating levels of tumor necrosis factor alpha. Both treatments partly reduced the MPO levels in the pancreas, whereas in the lungs, icatibant was more efficient to reduce the increased MPO levels. In addition, icatibant largely reduced the serum levels of amylase, whereas SR140333 had no significant effect. CONCLUSIONS: We concluded that NK-1 and B2 receptors can regulate important steps in the local and remote inflammation during acute pancreatitis induced by sPLA2.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
pancreatitis  ISOTacr1 (Rattus norvegicus)2304266; 2304266 RGD 
pancreatitis  IMP 2304266 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tacr1  (tachykinin receptor 1)

Genes (Mus musculus)
Tacr1  (tachykinin receptor 1)

Genes (Homo sapiens)
TACR1  (tachykinin receptor 1)


Additional Information