Evidence map›Paper›PMID 18854424›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2008

Differential expression of the regulated catecholamine secretory pathway in different hereditary forms of pheochromocytoma.

Graeme Eisenhofer, Thanh-Truc Huynh, Abdel Elkahloun, John C Morris, Gennady Bratslavsky, W Marston Linehan, Zhengping Zhuang, Brian M Balgley, Cheng S Lee, Massimo Mannelli and 3 more

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 19% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Quantitative [EJNMMI reports · 2025
    Article
  3. [European journal of nuclear medicine and molecular imaging · 2025
    Article
  4. Review
  5. Management of Pheochromocytomas and Paragangliomas.The Surgical clinics of North America · 2024
    Review
  6. Review
  7. Article
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  9. Article
  10. Article
  11. Review
  12. 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

13 authors at 1 institution in 1 country.

Graeme EisenhoferInstitute of Clinical Chemistry and Laboratory Medicine, University of Dresden, Dresden, Germany. Graeme.Eisenhofer@uniklinikum-dresden.de
Thanh-Truc Huynh
Abdel Elkahloun
John C Morris
Gennady Bratslavsky
W Marston Linehan
Zhengping Zhuang
Brian M Balgley
Cheng S Lee
Massimo Mannelli
Jacques W M Lenders
Stefan R Bornstein
Karel Pacak
TU Dresden · DE

Funding

Clinical Studies of the Molecular Genetic Basis of Kidney CancerZIABC011028 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LINEHAN, WILLIAM MARSTON · 2009 to 2025
$17.9M
Clinical Studies of the Molecular Genetic Basis of Kidney CancerZ01BC011028 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LINEHAN, WILLIAM MARSTON · 2008 to 2008
$1.4M
Intramural NIH HHS
6 · The paper itself

Abstract

Pheochromocytomas in patients with von Hippel-Lindau (VHL) syndrome and multiple endocrine neoplasia type 2 (MEN 2) differ in the types and amounts of catecholamines produced and the resulting signs and symptoms. We hypothesized the presence of different processes of catecholamine release reflecting differential expression of components of the regulated secretory pathway among the two types of hereditary tumors. Differences in catecholamine secretion from tumors in patients with VHL syndrome (n = 47) and MEN 2 (n = 32) were examined using measurements of catecholamines in tumor tissue, urine, and plasma, the last of which was under baseline conditions in all subjects and in a subgroup of patients who received intravenous glucagon to provoke catecholamine release. Microarray and proteomics analyses, quantitative PCR, and Western blotting were used to assess expression of tumor tissue secretory pathway components. The rate constant for baseline catecholamine secretion was 20-fold higher in VHL than in MEN 2 tumors (0.359 +/- 0.094 vs. 0.018 +/- 0.009 day(-1)), but catecholamine release was responsive only to glucagon in MEN 2 tumors. Compared with tumors from MEN 2 patients, those from VHL patients were characterized by reduced expression of numerous components of the regulated secretory pathway (e.g., SNAP25, syntaxin, rabphilin 3A, annexin A7, calcium-dependent secretion activator). The mutation-dependent differences in expression of secretory pathway components indicate a more mature regulated secretory pathway in MEN 2 than VHL tumors. These data provide a unique mechanistic link to explain how variations in the molecular machinery governing exocytosis may contribute to clinical differences in the secretion of neurotransmitters or hormones and the subsequent presentation of a disease.

Indexed as

Gene Expression ProfilingAdaptor Proteins, Signal TransducingAdolescentAdrenal Gland NeoplasmsAdultAnnexin A7Blotting, WesternCalcium-Binding ProteinsCatecholaminesChildEpinephrineFemaleGenetic Diseases, InbornGlucagonHumansMaleAdaptor Proteins, Signal TransducingAnnexin A7CADPS protein, humanCalcium-Binding ProteinsCatecholaminesEpinephrineGlucagonNorepinephrinerab GTP-Binding ProteinsRPH3AL protein, humanSNAP25 protein, humanSynaptosomal-Associated Protein 25Syntaxin 1Vesicular Transport Proteins

Identifiers

PMID18854424
PMCPMC2584809
OpenAlexW2115394534

What OpenQuestion holds

Textmetadata
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.