Evidence map›Paper›PMID 22841760›Full record

ArticleGeneral and comparative endocrinology2012

Knockdown of leptin A expression dramatically alters zebrafish development.

Qin Liu, Mark Dalman, Yun Chen, Mashal Akhter, Sravya Brahmandam, Yesha Patel, Josef Lowe, Mitesh Thakkar, Akil-Vuai Gregory, Daryllanae Phelps and 2 more

Abstract read
In one paragraph

Article in General and comparative endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 21% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. International journal of molecular sciences · 2024
    Article
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  5. Article
  6. Article
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  10. Mechanisms of otoconia and otolith development.Developmental dynamics : an official publication of the American Association of Anatomists · 2015
    Review
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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

12 authors at 2 institutions in 1 country.

Qin LiuDepartment of Biology and Program in Integrated Bioscience, University of Akron, Akron, OH 44325, USA.
Mark Dalman
Yun Chen
Mashal Akhter
Sravya Brahmandam
Yesha Patel
Josef Lowe
Mitesh Thakkar
Akil-Vuai Gregory
Daryllanae Phelps
Caitlin Riley
Richard L Londraville
University of Akron · USNortheast Ohio Medical University · US

Funding

Protocadherin-17 and -9 Function in Retinal DevelopmentR15EY013879 · NEI · UNIVERSITY OF AKRON · PI LIU, QIN · 2001 to 2011
$959k
Characterization of leptin's effects in early developing and adult zebrafishR15DK079282 · NIDDK · UNIVERSITY OF AKRON · PI LONDRAVILLE, RICHARD LYLE · 2008 to 2012
$687k
NEI NIH HHS EY13879NIDDK NIH HHS DK079282-01A1NIDDK NIH HHS R15 DK079282
6 · The paper itself

Abstract

Using morpholino antisense oligonucleotide (MO) technology, we blocked leptin A or leptin receptor expression in embryonic zebrafish, and analyzed consequences of leptin A knock-down on fish development. Embryos injected with leptin A or leptin receptor MOs (leptin A or leptin receptor morphants) had smaller bodies and eyes, undeveloped inner ear, enlarged pericardial cavity, curved body and/or tail and larger yolk compared to control embryos of the same stages. The defects persisted in 6-9 days old larvae. We found that blocking leptin A function had little effect on the development of early brain (1 day old), but differentiation of both the morphant dorsal brain and retinal cells was severely disrupted in older (2 days old) embryos. Despite the enlarged pericardial cavity, differentiation of cardiac cells appeared to be similar to control embryos. Formation of the morphants' inner ear is also severely disrupted, which corroborates existing reports of leptin receptor expression in inner ear of both zebrafish and mammals. Co-injection of leptin A MO and recombinant leptin results in partial rescue of the wild-type phenotype. Our results suggest that leptin A plays distinct roles in zebrafish development.

Indexed as

AnimalsCell DifferentiationEmbryo, NonmammalianGene Expression Regulation, DevelopmentalLeptinOligonucleotides, AntisenseSignal TransductionZebrafishZebrafish ProteinsLeptinOligonucleotides, AntisenseZebrafish Proteins

Identifiers

PMID22841760
PMCPMC3428433
OpenAlexW1983283622

What OpenQuestion holds

Textmetadata
LicenceTDM
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.