Evidence map›Paper›PMID 34703266›Full record

ArticleClinical, cosmetic and investigational dermatology2021

Niacinamide Down-Regulates the Expression of DKK-1 and Protects Cells from Oxidative Stress in Cultured Human Dermal Papilla Cells.

Yun-Ho Choi, Jae Young Shin, Jaeyoon Kim, Nae-Gyu Kang, Sanghwa Lee

Open access · goldAbstract read
In one paragraph

Article in Clinical, cosmetic and investigational dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

  1. Molecules (Basel, Switzerland) · 2026
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  14. Phloroglucinol Enhances Anagen Signaling and Alleviates HJournal of microbiology and biotechnology · 2024
    Article
  15. Molecules (Basel, Switzerland) · 2024
    Article
  16. Morphogenesis, Growth Cycle and Molecular Regulation of Hair Follicles.Frontiers in cell and developmental biology · 2022
    Review
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

5 authors.

Yun-Ho ChoiLG Household & Health Care (LG H&H) R&D Center, Seoul, 07795, Korea.ORCID 0000-0002-7920-3411
Jae Young ShinLG Household & Health Care (LG H&H) R&D Center, Seoul, 07795, Korea.
Jaeyoon KimLG Household & Health Care (LG H&H) R&D Center, Seoul, 07795, Korea.
Nae-Gyu KangLG Household & Health Care (LG H&H) R&D Center, Seoul, 07795, Korea.ORCID 0000-0002-3318-3873
Sanghwa LeeLG Household & Health Care (LG H&H) R&D Center, Seoul, 07795, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAn increasing number of people are suffering from hair loss disorders. Niacinamide has long been used as an active ingredient for anti-hair loss preparations but the exact mechanism has not been clearly elucidated yet. The effects of niacinamide were investigated in cultured human dermal papilla cells (hDPCs).

methodsTo investigate the anti-hair loss effect of niacinamide and its molecular mechanisms, Western blot analysis, ELISA, quantitative RT-PCR and immunocytochemistry were performed. To study the protective effects of niacinamide against H

resultsNiacinamide decreased the protein expression level of DKK-1 which promotes regression of hair follicles by inducing catagen. The protein expression levels of cell senescence markers, p21 (CDKN1A) and p16 (CDKN2A) which are related to cell cycle arrest, were decreased. The expression of versican was increased by niacinamide treatment in cultured hDPCs. We have found that niacinamide decreased the H

conclusionOur data demonstrate that niacinamide could enhance hair growth by preventing oxidative stress-induced cell senescence and premature catagen entry of hair follicles.

Indexed as

anti-hair losscell cyclehair follicleROS

Identifiers

PMID34703266
PMCPMC8536842
OpenAlexW3207304612

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.