Evidence map›Paper›PMID 19454288›Full record

ArticleGastroenterology2009

Reducing extracellular pH sensitizes the acinar cell to secretagogue-induced pancreatitis responses in rats.

Madhavi Bhoomagoud, Thomas Jung, Jorunn Atladottir, Thomas R Kolodecik, Christine Shugrue, Anamika Chaudhuri, Edwin C Thrower, Fred S Gorelick

Open access · bronzeAbstract read
In one paragraph

Article in Gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 2 pooled it
9.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 2 syntheses or guidelines pooled it, 115 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. L-arginine-induced pancreatitis aggravated by inhibiting NaThe Journal of veterinary medical science · 2023
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Emerging Therapies to Prevent Post-ERCP Pancreatitis.Current gastroenterology reports · 2020
    Review
  17. Review
  18. Pancreatitis in Children.Gastroenterology · 2019
    Review
  19. New Advances in the Treatment of Acute Pancreatitis.Current treatment options in gastroenterology · 2019
    Review
  20. Update on the Prevention of Post-ERCP Pancreatitis.Current treatment options in gastroenterology · 2018
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Madhavi BhoomagoudSection of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
Thomas Jung
Jorunn Atladottir
Thomas R Kolodecik
Christine Shugrue
Anamika Chaudhuri
Edwin C Thrower
Fred S Gorelick
Yale University · US

Funding

TRAINING PROGRAM IN INVESTIGATIVE GASTROENTEROLOGYT32DK007017 · NIDDK · YALE UNIVERSITY · PI Fred Sanford Gorelick, Liza Konnikova · 1986 to 2026
$7.1M
EXOCRINE PANCREATIC ZYMOGEN ACTIVATIONR01DK054021 · NIDDK · YALE UNIVERSITY · PI GORELICK, FRED SANFORD · 1998 to 2018
$3.6M
Effect of Acidosis on PancreatitisF32DK080582 · NIDDK · YALE UNIVERSITY · PI BHOOMAGOUD, MADHAVI · 2008 to 2008
$57k
NIDDK NIH HHS DK80582NIDDK NIH HHS F32 DK080582NIDDK NIH HHS R01 DK054021NIDDK NIH HHS R01 DK54021NIDDK NIH HHS T32 DK007017NIDDK NIH HHS T32 DK07017
6 · The paper itself

Abstract

BACKGROUND &

aimsProtease activation within the pancreatic acinar cell is a key early event in acute pancreatitis and may require low pH intracellular compartments. Clinical studies suggest that acidosis may affect the risk for developing pancreatitis. We hypothesized that exposure to an acid load might sensitize the acinar cell to secretagogue-induced pancreatitis.

methodsSecretagogues (cerulein, carbachol, and bombesin) can induce protease activation in acinar cells at high (100 nmol/L, 1 mmol/L, and 10 micromol/L, respectively) but not at physiologically relevant concentrations. The effects of decreasing extracellular pH (pHe) in early secretagogue-induced pancreatitis (zymogen activation and injury) were examined in rats (1) in vitro with isolated acini and (2) in vivo with an acid challenge.

resultsIn acini, lowering pHe from 7.6 to 6.8 enhanced secretagogue-induced zymogen activation and injury, but did not affect secretion. For cerulein, this sensitization was seen over a range of concentrations (0.01-100.00 nmol/L). However, reduced pHe alone had no effect on zymogen activation, amylase secretion, or cell injury. We have reported that zymogen activation is mediated by the vacuolar ATPase (vATPase), a proton transporter. vATPase inhibition, using concanamycin (100 nmol/L), blocked the low pHe effects on zymogen activation. An acute acid load given in vivo enhanced cerulein-induced (50 microg/kg) trypsinogen activation and pancreatic edema.

conclusionThese studies suggest that acid challenge sensitizes the pancreatic acinar cell to secretagogue-induced zymogen activation and injury and may increase the risk for the development and severity of acute pancreatitis.

Indexed as

Adenosine TriphosphatasesAmylasesAnimalsCarbacholCeruletideChymotrypsinEnzyme ActivationEnzyme InhibitorsEnzyme PrecursorsHydrogen-Ion ConcentrationIn Vitro TechniquesLactic AcidMacrolidesMalePancreasPancreatitisAdenosine TriphosphatasesAmylasesCarbacholCeruletideChymotrypsinconcanamycin AEnzyme InhibitorsEnzyme PrecursorsLactic AcidMacrolidesPropionatessodium propionateTrypsin

Identifiers

PMID19454288
PMCPMC2736307
OpenAlexW2061654192

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.