Evidence map›Paper›PMID 25939710›Full record

ArticleEuropean journal of clinical pharmacology2015

Distribution of xanthine oxidase activity in a Nigerian population.

Ayorinde Adehin, Oluseye Oladotun Bolaji

Abstract read
PubMed Publisher
In one paragraph

Article in European journal of clinical pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. Article
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 1 institution in 1 country.

Ayorinde AdehinDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria. ayoadehin@yahoo.com.
Oluseye Oladotun BolajiDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria.
Obafemi Awolowo University · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundXanthine oxidase (XO) is one of the two interconvertible forms of xanthine oxidoreductase and well-studied for its role in purine catabolism and that of other purine analogues, drugs especially. Our study investigated the incidence of polymorphism in phenotypes along with the influence of gender and age on enzyme activity in a Nigerian population.

methodsCaffeine (110 mg) was administered to each of 129 healthy, unrelated subjects who were nonsmokers. Urine voided within 7 h after dosing was collected for a high-performance liquid chromatographic analysis of metabolites, and the urinary molar ratio of metabolites was used as marker for enzyme activity. Statistical analysis of data was carried out to identify the prevalent phenotypes and also assessed the influence of age and sex on enzyme activity.

resultA sevenfold variation in XO activity with a population mean (± SD) molar ratio of 0.43 ± 0.15 and median (interquartile range) of 0.42 (0.16) was observed. Distinctly higher enzyme activity was also recorded in 8% of the study population, and there was no correlation (P > 0.05) between enzyme activity and the studied covariates.

conclusionsOur study confirmed the existence of polymorphism in xanthine oxidase activity in Nigerians and also the incidence of individuals with distinctly higher XO activity in the population.

Indexed as

AdultBlack PeopleCaffeineFemaleHumansMalePhenotypePolymorphism, GeneticXanthine OxidaseYoung AdultCaffeineXanthine Oxidase

Identifiers

PMID25939710
OpenAlexW2015195999

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.