Evidence map›Paper›PMID 29149058›Full record

ReviewInternational journal of molecular sciences2017

Neurotrophic and Neuroregenerative Effects of GH/IGF1.

Vittorio Emanuele Bianchi, Vittorio Locatelli, Laura Rizzi

Open access · goldAbstract readReview
In one paragraph

Review in International journal of molecular sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
118citing papers in PubMed, 5 pooled it
9.6field-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

118 citing papers in PubMed, 5 syntheses or guidelines pooled it, 191 citations in OpenAlex.

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58 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

3 authors at 1 institution in 1 country.

Vittorio Emanuele BianchiEndocrinology and Metabolism, Clinical Center Stella Maris, Strada Rovereta, 42-47891 Falciano, San Marino. vittorio.bianchi@studio.unibo.it.
Vittorio LocatelliSchool of Medicine and Surgery, University of Milano-Bicocca via Cadore, 48-20900 Monza Brianza, Italy. vittorio.locatelli@unimib.it.
Laura RizziMolecular Biology, School of Medicine and Surgery, University of Milano-Bicocca, via Cadore, 48-20900 Monza Brianza, Italy. laura.rizzi@unimib.it.ORCID 0000-0002-3709-6574
University of Milano-Bicocca · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHuman neurodegenerative diseases increase progressively with age and present a high social and economic burden. Growth hormone (GH) and insulin-like growth factor-1 (IGF-1) are both growth factors exerting trophic effects on neuronal regeneration in the central nervous system (CNS) and peripheral nervous system (PNS). GH and IGF-1 stimulate protein synthesis in neurons, glia, oligodendrocytes, and Schwann cells, and favor neuronal survival, inhibiting apoptosis. This study aims to evaluate the effect of GH and IGF-1 on neurons, and their possible therapeutic clinical applications on neuron regeneration in human subjects.

methodsIn the literature, we searched the clinical trials and followed up studies in humans, which have evaluated the effect of GH/IGF-1 on CNS and PNS. The following keywords have been used: "GH/IGF-1" associated with "neuroregeneration", "amyotrophic lateral sclerosis", "Alzheimer disease", "Parkinson's disease", "brain", and "neuron".

resultsOf the retrieved articles, we found nine articles about the effect of GH in healthy patients who suffered from traumatic brain injury (TBI), and six studies (four using IGF-1 and two GH therapy) in patients with amyotrophic lateral sclerosis (ALS). The administration of GH in patients after TBI showed a significantly positive recovery of brain and mental function. Treatment with GH and IGF-1 therapy in ALS produced contradictory results.

conclusionsAlthough strong findings have shown the positive effects of GH/IGF-1 administration on neuroregeneration in animal models, a very limited number of clinical studies have been conducted in humans. GH/IGF-1 therapy had different effects in patients with TBI, evidencing a high recovery of neurons and clinical outcome, while in ALS patients, the results are contradictory. More complex clinical protocols are necessary to evaluate the effect of GH/IGF-1 efficacy in neurodegenerative diseases. It seems evident that GH and IGF-1 therapy favors the optimal recovery of neurons when a consistent residual activity is still present. Furthermore, the effect of GH/IGF-1 could be mediated by, or be overlapped with that of other hormones, such as estradiol and testosterone.

Indexed as

AdultAmyotrophic Lateral SclerosisAnimalsBrain InjuriesDrug EvaluationGrowth HormoneHumansInsulin-Like Growth Factor IMaleMiceMiddle AgedModels, AnimalNeuronsNeuroprotective AgentsRatsTreatment OutcomeGrowth HormoneInsulin-Like Growth Factor INeuroprotective Agents17β-estradiolAlzheimer’s diseaseamyotrophic lateral sclerosisgrowth hormoneIGF-1neuroregenerationperipheral nerve regenerationtestosterone

Identifiers

PMID29149058
PMCPMC5713408
OpenAlexW2770565967

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.