Evidence map›Paper›PMID 22975643›Full record

ArticleGene2012

Leptin and leptin receptor genetic variants associate with habitual physical activity and the arm body composition response to resistance training.

S Walsh, C J Haddad, M A Kostek, T J Angelopoulos, P M Clarkson, P M Gordon, N M Moyna, P S Visich, R F Zoeller, R L Seip and 7 more

Open access · greenAbstract read
In one paragraph

Article in Gene, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 38% 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

14 citing papers in PubMed, 32 citations in OpenAlex.

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  5. An intron variant of the GLI family zinc finger 3 (GLI3) gene differentiates resistance training-induced muscle fiber hypertrophy in younger men.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
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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

17 authors at 11 institutions in 2 countries.

S WalshDepartment of Physical Education and Human Performance, Central Connecticut State University, New Britain, CT 06050, USA. walshse@ccsu.edu
C J Haddad
M A Kostek
T J Angelopoulos
P M Clarkson
P M Gordon
N M Moyna
P S Visich
R F Zoeller
R L Seip
S Bilbie
P D Thompson
J Devaney
H Gordish-Dressman
E P Hoffman
Thomas B Price
L S Pescatello
Children's National · USHartford Hospital · USUniversity of Connecticut · USCentral Connecticut State University · USDublin City University · IEFlorida Atlantic University · USUniversity of Bridgeport · USUniversity of Central Florida · USUniversity of Massachusetts Amherst · USUniversity of Michigan–Ann Arbor · USUniversity of New England · US

Funding

Improved Diagnostic of the Muscular DystrophiesR01NS029525 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOFFMAN, ERIC P. · 1991 to 2015
$6.5M
Functional SNP's Assoc with Human Muscle Size &StrengthR01NS040606 · NINDS · CHILDREN'S RESEARCH INSTITUTE · PI HOFFMAN, ERIC P · 2001 to 2004
$4.7M
NINDS NIH HHS R01 NS029525NINDS NIH HHS R01 NS040606
6 · The paper itself

Abstract

purposeWe investigated the influence of Leptin (LEP) and leptin receptor (LEPR) SNPs on habitual physical activity (PA) and body composition response to a unilateral, upper body resistance training (RT) program.

methodsEuropean-derived American volunteers (men=111, women=131, 23.4 ± 5.4 yr, 24.4 ± 4.6 kg·m(-2)) were genotyped for LEP 19 G>A (rs2167270), and LEPR 326 A>G (rs1137100), 668 A>G (rs1137101), 3057 G>A (rs1805096), and 1968 G>C (rs8179183). They completed the Paffenbarger PA Questionnaire. Arm muscle and subcutaneous fat volumes were measured before and after 12 wk of supervised RT with MRI. Multivariate and repeated measures ANCOVA tested differences among phenotypes by genotype and gender with age and body mass index as covariates.

resultsAdults with the LEP 19 GG genotype reported more kcal/wk in vigorous intensity PA (1273.3 ± 176.8, p=0.017) and sports/recreation (1922.8 ± 226.0, p<0.04) than A allele carriers (718.0 ± 147.2, 1328.6 ± 188.2, respectively). Those with the LEP 19 GG genotype spent more h/wk in light intensity PA (39.7 ± 1.6) than A allele carriers (35.0 ± 1.4, p=0.03). In response to RT, adults with the LEPR 668 G allele gained greater arm muscle volume (67,687.05 ± 3186.7 vs. 52,321.87 ± 5125.05 mm(3), p=0.01) and subcutaneous fat volume (10,599.89 ± 3683.57 vs. -5224.73 ± 5923.98 mm(3), p=0.02) than adults with the LEPR 668 AA genotype, respectively.

conclusionLEP19 G>A and LEPR 668 A>G associated with habitual PA and the body composition response to RT. These LEP and LEPR SNPs are located in coding exons likely influencing LEP and LEPR function. Further investigation is needed to confirm our findings and establish mechanisms for LEP and LEPR genotype and PA and body composition associations we observed.

Indexed as

Polymorphism, Single NucleotideAdolescentAdultAllelesArmBody CompositionBody Mass IndexExerciseFemaleGene FrequencyGenotypeHumansLeptinMagnetic Resonance ImagingMaleMuscle, SkeletalLeptinReceptors, Leptin

Identifiers

PMID22975643
PMCPMC3500611
OpenAlexW1982085793

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.