Evidence map›Paper›PMID 8063854›Full record

ArticleThe Journal of cell biology1994

pH-independent and -dependent cleavage of proinsulin in the same secretory vesicle.

L Orci, P Halban, A Perrelet, M Amherdt, M Ravazzola, R G Anderson

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.1field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
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  3. The Pancreatic β-Cell: The Perfect Redox System.Antioxidants (Basel, Switzerland) · 2021
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  15. Insulinoma with hyperproinsulinemia during hypoglycemia and loss of expression of vacuolar-type H(+)-ATPase (V-ATPase) in the tumor tissue.International journal of pancreatology : official journal of the International Association of Pancreatology · 1999
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 2 countries.

L OrciDépartement de Morphologie, University of Geneva, Switzerland.
P Halban
A Perrelet
M Amherdt
M Ravazzola
R G Anderson
University of Geneva · CH

Funding

PROCESSING OF PROINSULIN/INSULIN BY B-CELL ORGANELLESR01DK035292 · NIDDK · UNIVERSITY OF GENEVA · PI HALBAN, PHILIPPE A · 1986 to 1993
–
NIDDK NIH HHS DK-35292
6 · The paper itself

Abstract

By quantitative immunoelectron microscopy and HPLC, we have studied the effect of disrupting pH gradients, by ammonium chloride, on proinsulin conversion in the insulin-producing B-cells of the islets of langerhans. Proinsulin content and pH in single secretory vesicles were measured on consecutive serial sections immunostained alternately with anti-proinsulin or anti-dinitrophenol (to reveal the pH-sensitive probe DAMP) antibodies. Radioactivity labeled proinsulin, proinsulin cleavage intermediates, and insulin were quantitated by HPLC analysis of extracts of islets treated in the same conditions. Cleavage at the C-peptide/A-chain junction is significantly less sensitive to pH gradient disruption than that of the B-chain/C-peptide junction, but the range of pH and proinsulin content in individual vesicles indicate that both cleavages occur in the same vesicle released from the TGN.

Indexed as

Ammonium ChlorideAnimalsCytoplasmic GranulesGlucoseHydrogen-Ion ConcentrationIn Vitro TechniquesIslets of LangerhansProinsulinProtein Processing, Post-TranslationalRatsRats, Sprague-DawleyAmmonium ChlorideGlucoseProinsulin

Identifiers

PMID8063854
PMCPMC2120168
OpenAlexW2086056405

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.