Evidence map›Paper›PMID 11081198›Full record

ArticlePituitary1999

Prolactin-producing pituitary adenoma and carcinoma with neuronal components--a metaplastic lesion.

B W Scheithauer, E Horvath, K Kovacs, R V Lloyd, L Stefaneanu, M Buchfelder, R Fahlbusch, K von Werder, D F Lyons

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In one paragraph

Article in Pituitary, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

10 citing papers in PubMed, 33 citations in OpenAlex.

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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

9 authors at 5 institutions in 3 countries.

B W ScheithauerDepartment of Laboratory Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.
E Horvath
K Kovacs
R V Lloyd
L Stefaneanu
M Buchfelder
R Fahlbusch
K von Werder
D F Lyons
St. Michael's Hospital · CAFriedrich-Alexander-Universität Erlangen-Nürnberg · DEMayo Clinic · USMercy Hospital Springfield · USSchlosspark-Klinik · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies indicate that cells of various epithelial tumors are capable of transformation to neurons. Observing both neurons and neuropil in two prolactin-producing adenohypophyseal tumors, one benign and one malignant, we sought to assess their cellular differentiation, the presence of nerve growth factor receptor, and expression of the dopamine receptor gene using immunocytochemistry, electron microscopy, and in situ hybridization. Light and electron microscopy clearly revealed cells morphologically transitional between adenoma/carcinoma cells and neurons. Large neurons lacked proliferative activity. Neurons in varying number showed immunoreactivity for pituitary hormones including prolactin, growth hormone and alpha subunit in the adenoma and prolactin alone in the carcinoma. The distribution of nerve growth factor receptor staining was similar. In both tumors, in situ hybridization showed mRNAs for prolactin and dopamine receptor within adenohypophyseal cells and neurons. Our results indicate that the occurrence of neurons and neuropil in growth hormone and prolactin-producing pituitary tumors appears to be the result of metaplasia. The process is not limited to benign tumors and may be due to the production of tropic substances by the adenohypophysial cells, which by paracrine/autocrine mechanisms result in transformation of adenoma cells to nerve cells.

Indexed as

AdenomaAdultCarcinomaCell DifferentiationFemaleHumansIn Situ HybridizationMaleMetaplasiaMiddle AgedNeoplasm MetastasisNeuronsPituitary NeoplasmsProlactinReceptor, Nerve Growth FactorReceptors, DopamineProlactinReceptor, Nerve Growth FactorReceptors, DopamineRNA, MessengerRNA, Neoplasm

Identifiers

PMID11081198
OpenAlexW52757792

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.