Evidence map›Paper›PMID 16052322›Full record

ArticleHistochemistry and cell biology2005

Catecholamine-synthesizing enzymes in the adult and prenatal human testis.

Michail S Davidoff, Hendrik Ungefroren, Ralf Middendorff, Yvetta Koeva, Mariana Bakalska, Nina Atanassova, Adolf F Holstein, Davor Jezek, Wolfgang Pusch, Dieter Müller

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Article in Histochemistry and cell biology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 32 citations in OpenAlex.

  1. DAPL1 is activated by Np63 and GRα and regulates lipid metabolism.Journal of molecular medicine (Berlin, Germany) · 2026
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  5. RT-qPCR forOncology letters · 2017
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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

10 authors at 6 institutions in 3 countries.

Michail S DavidoffInstitute of Anatomy, University Hospital Hamburg, Martinistrasse 52, 20246 Hamburg, Germany. davidoff@uke.uni-hamburg.de
Hendrik Ungefroren
Ralf Middendorff
Yvetta Koeva
Mariana Bakalska
Nina Atanassova
Adolf F Holstein
Davor Jezek
Wolfgang Pusch
Dieter Müller
Universität Hamburg · DEBulgarian Academy of Sciences · BGMedical University Plovdiv · BGUniversity Hospital Schleswig-Holstein · DEUniversity of Giessen · DEUniversity of Zagreb · HR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Catecholamines play functional roles in the mature and developing mammalian testis but the cell types responsible for their local synthesis are still controversially discussed. Here, we demonstrate that four enzymes involved in the biosynthesis of catecholamines, namely, tyrosine hydroxylase (TH), aromatic amino acid decarboxylase (AADC), dopamine beta-hydroxylase (DBH) and phenylethanolamine- N-methyltransferase (PNMT), are expressed in Leydig cells of the human testis. Tyrosine hydroxylase, the key enzyme of the biosynthesis of catecholamines, was localized to Leydig cells both at the transcript level (by RT-PCR analyses and by in situ hybridization assays) and at the protein level (by immunoblotting and by immunohistochemistry). The other enzymes were also demonstrated in Leydig cells by RT-PCR and immunohistochemical analyses. The presence of TH, AADC, DBH, and PNMT in human Leydig cells was found, in addition, by immunohistochemical approaches carried out on sections from prenatal human testes. Thus, the present study identifies the Leydig cells as the presumed sites of catecholamine production in both the mature and fetal human testes and further supports the previously recognized neuroendocrine characteristics of this cell type.

Indexed as

AgedAged, 80 and overAromatic-L-Amino-Acid DecarboxylasesCatecholaminesDopamine beta-HydroxylaseHumansImmunohistochemistryIn Situ HybridizationLeydig CellsMaleMiddle AgedPhenylethanolamine N-MethyltransferaseReverse Transcriptase Polymerase Chain ReactionTestisTyrosine 3-MonooxygenaseAromatic-L-Amino-Acid DecarboxylasesCatecholaminesDopamine beta-HydroxylasePhenylethanolamine N-MethyltransferaseTyrosine 3-Monooxygenase

Identifiers

PMID16052322
OpenAlexW2045621794

What OpenQuestion holds

Textmetadata
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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.