Metabolic Adaptations to Environmental Pressure

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Physiology and Pathology".

Deadline for manuscript submissions: closed (23 October 2020) | Viewed by 3078

Special Issue Editor


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Guest Editor
Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Roma, Italy
Interests: systems physiology; metabolism; nutrition; adipose tissue; adipocytes; mitochondrial bioenergetics

Special Issue Information

Dear colleagues,

Energy and nutrient fluctuations require finely regulated metabolic systems. Much of the development and evolution of these systems has taken place in the absence of pressures that we now experience as modern humans, including nutrient overload, lack of physical activity, and exposure to thermoneutral conditions and radiations. Overall, these environmental inputs ignite adaptive responses, which persist dramatically due to both increase in life expectancy and chronic lifetime exposure to stress signals. A metabolic pressure is then generated that, if continuous, may lead to metabolic and immunological failure, thus causing reduced tolerance to glucose and infections. In fact, biological responses are unable to cope with these challenges, and homeostatic systems gradually deteriorate.

For this Life Special Issue, submissions are encouraged to discuss how metabolic workload can modulate stress tolerance and to identify the molecular checkpoints governing the adaptive responses. Novel strategies aimed at restoring metabolic homeostasis under conditions of metabolic pressure are also welcome.

Dr. Daniele Lettieri-Barbato
Guest Editor

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Keywords

  • nutrient partitioning
  • metabolism
  • adaptive stress responses
  • mitochondrial bioenergetics
  • metabolic flexibility/inflexibility
  • adaptations to nutrient overload/restrictions
  • adaptations to redox pressure
  • adaptations to cool temperature
  • adipose tissues
  • adipocytes

Published Papers (1 paper)

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Research

19 pages, 3212 KiB  
Article
ITRAQ Proteomic Analysis of Yellow and Black Skin in Jinbian Carp (Cyprinus carpio)
by Xiangchen Ye, Lingling Zhou, Jingyi Jia, Lingjing Wei, Yanhong Wen, Xueyu Yan, Jie Huang, Baojiang Gan, Kang Liu, Yejian Lv and Guangfu Hu
Life 2020, 10(10), 226; https://doi.org/10.3390/life10100226 - 30 Sep 2020
Cited by 3 | Viewed by 2672
Abstract
Colors are important phenotypic traits for fitness under natural conditions in vertebrates. Previous studies have reported several functional genes and genetic variations of pigmentation, but the formation mechanisms of various skin coloration remained ambiguous in fish. Jinbian carp, a common carp variant, displays [...] Read more.
Colors are important phenotypic traits for fitness under natural conditions in vertebrates. Previous studies have reported several functional genes and genetic variations of pigmentation, but the formation mechanisms of various skin coloration remained ambiguous in fish. Jinbian carp, a common carp variant, displays two colors (yellow and black) in the skin, thus, it is a good model for investigating the genetic basis of pigmentation. In the present study, using the Jinbian carp as model, isobaric tags for relative and absolute quantification (ITRAQ) proteomics analysis was performed for yellow and black skin, respectively. The results showed that 467 differentially expressed proteins (DEPs) were identified between the yellow skin and the black skin. Similar to mammals, the up-regulated DEPs in black skin included UV excision repair protein RAD23 homolog A (Rad23a), melanoregulin (mreg), 5,6-dihydroxyindole-2-carboxylic acid oxidase5 (tyrp1) and melanocyte protein PMEL (PMEL), which were mainly grouped into melanogenesis pathway. However, several up-regulated DEPs in yellow skin were mainly enriched in nucleotide metabolism, such as GTPase IMAP family member 5 (GIMAP5), AMP deaminase 1 (AMPD1), adenosylhomocysteinase b (ahcy-b), and pyruvate kinase (PKM). In summary, several candidate proteins and their enrichment pathways for color variation in Jinbian carp were identified, which may be responsible for the formation of different colorations. Full article
(This article belongs to the Special Issue Metabolic Adaptations to Environmental Pressure)
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