Evidence map›Paper›PMID 27075752›Full record

Observational studyBiological research2016

The p. N103K mutation of leptin (LEP) gene and severe early onset obesity in Pakistan.

Shabana, Shahida Hasnain

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Biological research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Classification of Congenital Leptin Deficiency.The Journal of clinical endocrinology and metabolism · 2024
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  3. The interaction of breastfeeding and genetic factors on childhood obesity.European journal of obstetrics & gynecology and reproductive biology: X · 2024
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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

2 authors at 2 institutions in 1 country.

ShabanaDepartment of Microbiology and Molecular Genetics, University of the Punjab, Lahore, 54590, Pakistan. shabana.mmg@pu.edu.pk.
Shahida HasnainDepartment of Microbiology and Molecular Genetics, University of the Punjab, Lahore, 54590, Pakistan.
The Women University Multan · PKUniversity of the Punjab · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity is a complex disorder and has been increasing globally at alarming rates including Pakistan. However, there is scarce research on understanding obesity genetics in Pakistan. Leptin is a hormone secreted by adipocytes in response to satiety and correlates with body weight. Any mutations in the LEP gene have an adverse effect on energy regulation pathway and lead to severe, early onset obesity. To date, only eight mutations have been described in the LEP gene of which p. N103K is one.

methodsWe aimed to analyze the prevalence of this mutation in Pakistani subjects. A total of 475 subjects were genotyped by PCR-RFLP analysis and their serum profiling was done.

resultsResults showed that this mutation was present only in one male child with early onset obesity (10 year). He had very low serum leptin levels suggestive of functional impact of the mutation. The prevalence of such mutations is, however, low due to the drastic effects on the energy regulation.

conclusionIn conclusion, LEP gene mutations contribute significantly to the monogenic forms of obesity and are important due to the availability of treatment options. Such mutations may exert their effect by directly affecting energy regulation pathway and are more prominent in the early stages of life only.

Indexed as

MutationAdultAge of OnsetAnthropometryCase-Control StudiesEnzyme-Linked Immunosorbent AssayFemaleGenotypeHumansLeptinMaleMiddle AgedObesityPakistanPolymerase Chain ReactionPolymorphism, Restriction Fragment LengthLeptinLeptinObesityPakistanp. N103K

Identifiers

PMID27075752
PMCPMC4831177
OpenAlexW2337512154

What OpenQuestion holds

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Registered trials

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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.