Evidence map›Paper›PMID 31851674›Full record

ArticlePloS one2019

The diversity and abundance of fungi and bacteria on the healthy and dandruff affected human scalp.

Sally G Grimshaw, Adrian M Smith, David S Arnold, Elaine Xu, Michael Hoptroff, Barry Murphy

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

57 citing papers in PubMed, 99 citations in OpenAlex.

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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

6 authors at 2 institutions in 2 countries.

Sally G GrimshawUnilever Research & Development, Port Sunlight, England, United Kingdom.
Adrian M SmithUnilever Research & Development, Colworth, England, United Kingdom.ORCID 0000-0001-8833-2330
David S ArnoldUnilever Research & Development, Port Sunlight, England, United Kingdom.
Elaine XuUnilever Research & Development, Shanghai, China.
Michael HoptroffUnilever Research & Development, Port Sunlight, England, United Kingdom.
Barry MurphyUnilever Research & Development, Port Sunlight, England, United Kingdom.ORCID 0000-0003-2305-5875
Unilever (United Kingdom) · GBUnilever (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dandruff is a skin condition that affects the scalp of up to half the world's population, it is characterised by an itchy, flaky scalp and is associated with colonisation of the skin by Malassezia spp. Management of this condition is typically via antifungal therapies, however the precise role of microbes in the aggravation of the condition are incompletely characterised. Here, a combination of 454 sequencing and qPCR techniques were used to compare the scalp microbiota of dandruff and non-dandruff affected Chinese subjects. Based on 454 sequencing of the scalp microbiome, the two most abundant bacterial genera found on the scalp surface were Cutibacterium (formerly Propionibacterium) and Staphylococcus, while Malassezia was the main fungal inhabitant. Quantitative PCR (qPCR) analysis of four scalp taxa (M. restricta, M. globosa, C. acnes and Staphylococcus spp.) believed to represent the bulk of the overall population was additionally carried out. Metataxonomic and qPCR analyses were performed on healthy and lesional buffer scrub samples to facilitate assessment of whether the scalp condition is associated with differential microbial communities on the sampled skin. Dandruff was associated with greater frequencies of M. restricta and Staphylococcus spp. compared with the healthy population (p<0.05). Analysis also revealed the presence of an unclassified fungal taxon that could represent a novel Malassezia species.

Indexed as

DandruffMalasseziaMicrobiotaAdolescentAdultAgedChinaDermatomycosesFemaleHumansMaleMiddle AgedPropionibacteriaceaeScalpSkinStaphylococcus

Identifiers

PMID31851674
PMCPMC6919596
OpenAlexW2995739834

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.