Evidence map›Paper›PMID 22791294›Full record

ArticleBlood2012

Dietary L-leucine improves the anemia in a mouse model for Diamond-Blackfan anemia.

Pekka Jaako, Shubhranshu Debnath, Karin Olsson, David Bryder, Johan Flygare, Stefan Karlsson

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

52 citing papers in PubMed, 82 citations in OpenAlex.

  1. Trial
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  10. Metabolism in Hematopoiesis and Its Malignancy.Advances in experimental medicine and biology · 2023
    Article
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  16. Branched-chain amino acids are linked with iron metabolism.Annals of translational medicine · 2020
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Pekka JaakoMolecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden.
Shubhranshu Debnath
Karin Olsson
David Bryder
Johan Flygare
Stefan Karlsson
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diamond-Blackfan anemia (DBA) is a congenital erythroid hypoplasia caused by a functional haploinsufficiency of genes encoding for ribosomal proteins. Recently, a case study reported a patient who became transfusion-independent in response to treatment with the amino acid L-leucine. Therefore, we have validated the therapeutic effect of L-leucine using our recently generated mouse model for RPS19-deficient DBA. Administration of L-leucine significantly improved the anemia in Rps19-deficient mice (19% improvement in hemoglobin concentration; 18% increase in the number of erythrocytes), increased the bone marrow cellularity, and alleviated stress hematopoiesis. Furthermore, the therapeutic response to L-leucine appeared specific for Rps19-deficient hematopoiesis and was associated with down-regulation of p53 activity. Our study supports the rationale for clinical trials of L-leucine as a therapeutic agent for DBA.

Indexed as

Dietary SupplementsDisease Models, AnimalHematopoiesisUp-RegulationAnemia, Diamond-BlackfanAnimalsBone Marrow CellsDown-RegulationErythrocyte CountGene Knockdown TechniquesHematinicsHematopoietic Stem CellsHemoglobinsLeucineMiceMice, TransgenicHematinicsHemoglobinsLeucineRibosomal Proteinsribosomal protein S19RNA, MessengerRNA, Small InterferingTumor Suppressor Protein p53

Identifiers

PMID22791294
OpenAlexW1963836315

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.