Evidence map›Paper›PMID 25207599›Full record

ReviewInternational journal of molecular sciences2014

Fundamental issues related to the origin of melatonin and melatonin isomers during evolution: relation to their biological functions.

Dun-Xian Tan, Xiaodong Zheng, Jin Kong, Lucien C Manchester, Ruediger Hardeland, Seok Joong Kim, Xiaoying Xu, Russel J Reiter

Abstract readReview
In one paragraph

Review in International journal of molecular sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
–field-weighted citation impact
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

76 citing papers in PubMed.

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  11. Evolutionary formation of melatonin and vitamin D in early life forms: insects take centre stage.Biological reviews of the Cambridge Philosophical Society · 2024
    Review
  12. Review
  13. Melatonin: The Multifaceted Molecule in Plant Growth and Defense.International journal of molecular sciences · 2024
    Review
  14. Review
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  16. Article
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16 more citing papers are in PubMed but not listed here.

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

8 authors.

Dun-Xian TanDepartment of Cellular and Structural Biology, the University of Texas, Health Science Center, San Antonio, TX 78229, USA. tan@uthscsa.edu.
Xiaodong ZhengInstitute for Horticultural Plants, China Agricultural University, Beijing 100083, China. zheng.xiao.d@163.com.
Jin KongInstitute for Horticultural Plants, China Agricultural University, Beijing 100083, China. 05021@cau.edu.cn.
Lucien C ManchesterDepartment of Cellular and Structural Biology, the University of Texas, Health Science Center, San Antonio, TX 78229, USA. lmanchester@stmarytx.edu.
Ruediger HardelandJohann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen 37073, Germany. rhardel@gwdg.de.
Seok Joong KimDepartment of Cellular and Structural Biology, the University of Texas, Health Science Center, San Antonio, TX 78229, USA. skim@dongduk.ac.kr.
Xiaoying XuDepartment of Cellular and Structural Biology, the University of Texas, Health Science Center, San Antonio, TX 78229, USA. xxy2006stone@163.com.
Russel J ReiterDepartment of Cellular and Structural Biology, the University of Texas, Health Science Center, San Antonio, TX 78229, USA. reiter@uthscsa.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Melatonin and melatonin isomers exist and/or coexist in living organisms including yeasts, bacteria and plants. The levels of melatonin isomers are significantly higher than that of melatonin in some plants and in several fermented products such as in wine and bread. Currently, there are no reports documenting the presence of melatonin isomers in vertebrates. From an evolutionary point of view, it is unlikely that melatonin isomers do not exist in vertebrates. On the other hand, large quantities of the microbial flora exist in the gut of the vertebrates. These microorganisms frequently exchange materials with the host. Melatonin isomers, which are produced by these organisms inevitably enter the host's system. The origins of melatonin and its isomers can be traced back to photosynthetic bacteria and other primitive unicellular organisms. Since some of these bacteria are believed to be the precursors of mitochondria and chloroplasts these cellular organelles may be the primary sites of melatonin production in animals or in plants, respectively. Phylogenic analysis based on its rate-limiting synthetic enzyme, serotonin N-acetyltransferase (SNAT), indicates its multiple origins during evolution. Therefore, it is likely that melatonin and its isomer are also present in the domain of archaea, which perhaps require these molecules to protect them against hostile environments including extremely high or low temperature. Evidence indicates that the initial and primary function of melatonin and its isomers was to serve as the first-line of defence against oxidative stress and all other functions were acquired during evolution either by the process of adoption or by the extension of its antioxidative capacity.

Indexed as

AnimalsArchaeaArylalkylamine N-AcetyltransferaseBiological EvolutionIsomerismMelatoninMitochondriaPlantsArylalkylamine N-AcetyltransferaseMelatonin

Identifiers

PMID25207599
PMCPMC4200856

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Registered trials

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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.