Evidence map›Paper›PMID 2825206›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1987

Differential regulation of mRNA encoding nerve growth factor and its receptor in rat sciatic nerve during development, degeneration, and regeneration: role of macrophages.

R Heumann, D Lindholm, C Bandtlow, M Meyer, M J Radeke, T P Misko, E Shooter, H Thoenen

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1987. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed
8.0field-weighted citation impact, top 1% 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

125 citing papers in PubMed, 703 citations in OpenAlex.

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  9. A CaCurrent biology : CB · 2020
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  13. Development and Characterisation of anFrontiers in bioengineering and biotechnology · 2020
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  17. The Glucocorticoid Receptor Is a Critical Regulator of HIV Latency in Human Microglial Cells.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2019
    Article
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  19. Article
  20. Review

65 more citing papers are in PubMed but not listed here.

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

8 authors at 1 institution in 2 countries.

R HeumannDepartment of Neurochemistry, Max Planck Institute for Psychiatry, Martinsried, Federal Republic of Germany.
D Lindholm
C Bandtlow
M Meyer
M J Radeke
T P Misko
E Shooter
H Thoenen
Max Planck Institute of Neurobiology · DE

Funding

THE TRAFFICKING OF MYELIN PROTEINS AND NEUROTROPHINSR01NS004270 · NINDS · STANFORD UNIVERSITY · PI SHOOTER, ERIC M · 1985 to 2003
$2.0M
NINDS NIH HHS NS04270NINDS NIH HHS NS07638PHS HHS 17047
6 · The paper itself

Abstract

In newborn rats the levels of nerve growth factor (NGF) mRNA (mRNANGF) and NGF receptor mRNA (mRNA(rec)) in the sciatic nerve were 10 and 120 times higher, respectively, than in adult animals. mRNA(rec) levels decreased steadily from birth, approaching adult levels by the third postnatal week, whereas mRNANGF levels decreased only after the first postnatal week, although also reaching adult levels by the third week. Transection of the adult sciatic nerve resulted in a marked biphasic increase in mRNANGF with time. On the proximal side of the cut, this increase was confined to the area immediately adjacent to the cut; peripherally, a similar biphasic increase was present in all segments. mRNA(rec) levels were also markedly elevated distal to the transection site, in agreement with previous results obtained by immunological methods [Taniuchi, M., Clark, H. B. & Johnson, E. M., Jr. (1986) Proc. Natl. Acad. Sci. USA 83, 4094-4098]. Following a crush lesion (allowing regeneration), the mRNA(rec) levels were rapidly down-regulated as the regenerating nerve fibers passed through the distal segments. Down-regulation of mRNANGF also occurred during regeneration but was slower and not as extensive as that of mRNA(rec) over the time period studied. Changes in mRNANGF and mRNA(rec) occurring in vivo after transection were compared with those observed in pieces of sciatic nerve kept in culture. No difference was found for mRNA(rec). Only the initial rapid increase in mRNANGF occurred in culture, but the in vivo situation could be mimicked by the addition of activated macrophages. This reflects the situation in vivo where, after nerve lesion, macrophages infiltrate the area of the Wallerian degeneration. These results suggest that mRNANGF synthesis in sciatic non-neuronal cells is regulated by macrophages, whereas mRNA(rec) synthesis is determined by axonal contact.

Indexed as

AnimalsFemaleGene Expression RegulationMacrophagesMaleNerve CrushNerve DegenerationNerve Growth FactorsRatsReceptors, Cell SurfaceReceptors, Nerve Growth FactorRegenerationRNA, MessengerSchwann CellsSciatic NerveNerve Growth FactorsReceptors, Cell SurfaceReceptors, Nerve Growth FactorRNA, Messenger

Identifiers

PMID2825206
PMCPMC299621
OpenAlexW1965352187

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.