Evidence map›Paper›PMID 33802063›Full record

ArticleCells2021

Nicotinamide Treatment Facilitates Mitochondrial Fission through Drp1 Activation Mediated by SIRT1-Induced Changes in Cellular Levels of cAMP and Ca

Seon Beom Song, Jin Sung Park, So Young Jang, Eun Seong Hwang

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 30 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

4 authors at 1 institution in 1 country.

Seon Beom SongDepartment of Life Science, University of Seoul, Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Korea.
Jin Sung ParkDepartment of Life Science, University of Seoul, Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Korea.
So Young JangDepartment of Life Science, University of Seoul, Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Korea.
Eun Seong HwangDepartment of Life Science, University of Seoul, Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Korea.ORCID 0000-0001-8580-8444
University of Seoul · KR

Funding

University of Seoul Basic Study and Interdisciplinary R & D Foundation Fund of the University of Seoul (2019)
6 · The paper itself

Abstract

Mitochondrial autophagy (or mitophagy) is essential for mitochondrial quality control, which is critical for cellular and organismal health by attenuating reactive oxygen species generation and maintaining bioenergy homeostasis. Previously, we showed that mitophagy is activated in human cells through SIRT1 activation upon treatment of nicotinamide (NAM). Further, mitochondria are maintained as short fragments in the treated cells. In the current study, molecular pathways for NAM-induced mitochondrial fragmentation were sought. NAM treatment induced mitochondrial fission, at least in part by activating dynamin-1-like protein (Drp1), and this was through attenuation of the inhibitory phosphorylation at serine 637 (S637) of Drp1. This Drp1 hypo-phosphorylation was attributed to SIRT1-mediated activation of AMP-activated protein kinase (AMPK), which in turn induced a decrease in cellular levels of cyclic AMP (cAMP) and protein kinase A (PKA) activity, a kinase targeting S637 of Drp1. Furthermore, in NAM-treated cells, cytosolic Ca

Indexed as

CalciumCyclic AMPDynaminsHumansMitochondrial DynamicsNiacinamideSirtuin 1TransfectionCalciumCyclic AMPDNM1L protein, humanDynaminsNiacinamideSirtuin 1AMPKcalcineurinDrp1mitochondrial fragmentationnicotinamideSIRT1

Identifiers

PMID33802063
PMCPMC7999186
OpenAlexW3135397868

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.