Evidence map›Paper›PMID 36434042›Full record

ArticleExperimental & molecular medicine2022

SMP30-mediated synthesis of vitamin C activates the liver PPARα/FGF21 axis to regulate thermogenesis in mice.

Bonggi Lee, Hye Jin An, Dae Hyun Kim, Min-Kyeong Lee, Hyeon Hak Jeong, Ki Wung Chung, Younghoon Go, Arnold Y Seo, Il Yong Kim, Je Kyung Seong and 7 more

Open access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

7 citing papers in PubMed, 9 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

17 authors at 9 institutions in 3 countries.

Bonggi Lee *Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan, South Korea.
Hye Jin An *Department of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea.
Dae Hyun KimDepartment of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea.
Min-Kyeong LeeDepartment of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan, South Korea.ORCID 0000-0002-7292-8743
Hyeon Hak JeongDepartment of Smart Green Technology Engineering, Pukyong National University, Daeyeon-dong, Nam-gu, Busan, 48513, South Korea.
Ki Wung ChungDepartment of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea.
Younghoon GoKorean Medicine Application Center, Korea Institute of Oriental Medicine, Daegu, South Korea.
Arnold Y SeoJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, USA.
Il Yong KimLaboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Plus Program for Creative Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea.
Je Kyung SeongLaboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Plus Program for Creative Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea.ORCID 0000-0003-1177-6958
Byung Pal YuDepartment of Physiology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
Jaewon LeeDepartment of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea.
Eunok ImDepartment of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea.
In-Kyu LeeDepartment of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea.ORCID 0000-0002-1655-0985
Myung-Shik LeeSeverance Biomedical Science Institute and Department of Internal Medicine Yonsei University College of Medicine, Seoul, South Korea.ORCID 0000-0003-3292-1720
Ken-Ichi YamadaDepartment of Bio-functional Science, Kyushu University, Fukuoka, Japan.
Hae Young ChungDepartment of Pharmacy, College of Pharmacy, Pusan National University, Busan, 46241, South Korea. hyjung@pusan.ac.kr.
Pusan National University · KRPukyong National University · KRSeoul National University · KRYonsei University · KRHoward Hughes Medical Institute · USKorea Institute of Oriental Medicine · KRKyungpook National University · KRKyushu University · JPThe University of Texas Health Science Center at San Antonio · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The vitamin-C-synthesizing enzyme senescent marker protein 30 (SMP30) is a cold resistance gene in Drosophila, and vitamin C concentration increases in brown adipose tissue post-cold exposure. However, the roles of SMP30 in thermogenesis are unknown. Here, we tested the molecular mechanism of thermogenesis using wild-type (WT) and vitamin C-deficient SMP30-knockout (KO) mice. SMP30-KO mice gained more weight than WT mice without a change in food intake in response to short-term high-fat diet feeding. Indirect calorimetry and cold-challenge experiments indicated that energy expenditure is lower in SMP30-KO mice, which is associated with decreased thermogenesis in adipose tissues. Therefore, SMP30-KO mice do not lose weight during cold exposure, whereas WT mice lose weight markedly. Mechanistically, the levels of serum FGF21 were notably lower in SMP30-KO mice, and vitamin C supplementation in SMP30-KO mice recovered FGF21 expression and thermogenesis, with a marked reduction in body weight during cold exposure. Further experiments revealed that vitamin C activates PPARα to upregulate FGF21. Our findings demonstrate that SMP30-mediated synthesis of vitamin C activates the PPARα/FGF21 axis, contributing to the maintenance of thermogenesis in mice.

Indexed as

Ascorbic AcidPPAR alphaAdipose Tissue, BrownAnimalsCalcium-Binding ProteinsFibroblast Growth FactorsIntracellular Signaling Peptides and ProteinsLiverMiceMice, Inbred C57BLMice, KnockoutThermogenesisVitaminsAscorbic AcidCalcium-Binding Proteinsfibroblast growth factor 21Fibroblast Growth FactorsIntracellular Signaling Peptides and ProteinsPPAR alphaPpara protein, mouseRgn protein, mouseVitamins

Identifiers

PMID36434042
PMCPMC9723126
OpenAlexW4309951915

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.