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Metabolites
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Effects of Stress on Animal Metabolism
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Effects of Stress on Animal Metabolism

A special issue of Metabolites (ISSN 2218-1989). This special issue belongs to the section "Animal Metabolism".

Deadline for manuscript submissions: 18 August 2025 | Viewed by 800

Special Issue Editors

Prof. Dr. Krystyna Pierzchala-Koziec

E-Mail Website
Guest Editor
Department of Animal Physiology, Faculty of Animal Sciences, University of Agriculture in Krakow, 30-059 Kraków, Poland
Interests: physiology; endocrinology
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Colin Scanes

E-Mail Website
Guest Editor
Department of Biological Science, University of Wisconsin Milwaukee, Milwaukee, WI 53201-0413, USA
Interests: physiology; endocrinology

Special Issue Information

Dear Colleagues,

Within the simple but profound pioneering concept of stress advanced by Hans Selye, this Special Issue will explore the different responses of animals to individual stresses, looking at multiple categories of stressors, including the following:

  • Physical stressors, e.g., injury followed by healing, low or high temperatures, lack of water, and either insufficient or excess sodium;
  • Nutritional stresses, encompassing deficiencies in energy and specific nutrients;
  • Metabolic stressors, such as type 1 and 2 diabetes;
  • Pathogens as stressors;
  • Environmental toxicants as stressors;
  • Oxidative stresses;
  • Psychological stressors that impair welfare.

Responses to stressors can include the activation of the following:

  • The hypothalamus–pituitary–adrenal cortical axis, with cortisol as the major glucocorticoid in mammalian livestock and corticosterone as the major glucocorticoid in poultry and rodents;
  • Met-enkephalin and other opioid peptides;
  • The adrenal medulla, releasing epinephrine and/or norepinephrine;
  • Other stress-related hormones: growth hormone, prolactin, and ghrelin;
  • Protective responses to oxidative stresses;
  • Inflammatory cytokines.

This Special Issue, “Effects of Stress on Animal Metabolism”, will focus on these effects in domesticated animals but will not only include animal models and evolutionary considerations. Rather, it is anticipated that this Special Issue will also feature work from researchers in multiple fields, including physiology, nutrition, immunology, animal and poultry science, and veterinary medicine.

Prof. Dr. Krystyna Pierzchala-Koziec
Prof. Dr. Colin Scanes
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metabolites is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • stressors
  • ACTH
  • glucocorticoids
  • mineralocorticoids
  • opioids
  • glycemia
  • growth
  • development
  • lactation
  • pregnancy

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Published Papers (2 papers)

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17 pages, 3290 KiB  
Article
An Integrated Analysis of Transcriptomic and Metabolomic Effects Reveals Insights into Stress Responses in Largemouth Bass (Micropterus salmoides) Under MS-222 (Tricaine Methanesulfonate) Exposure
by Ping Gao, Rimeng Chen, Deyun Ma, Shanshan Lin, Haodong Yu and Xuezhen Zhang
Metabolites 2025, 15(6), 349; https://doi.org/10.3390/metabo15060349 - 23 May 2025
Viewed by 244
Abstract
Background/Objectives: MS-222 is a commonly used anesthetic for fish. Research on the anesthetic mechanism of MS-222 is scarce, especially in largemouth bass. Therefore, this study investigated the tissue-specific transcriptomic and metabolomic effects of MS-222 anesthesia on largemouth bass (Micropterus salmoides). Methods: [...] Read more.
Background/Objectives: MS-222 is a commonly used anesthetic for fish. Research on the anesthetic mechanism of MS-222 is scarce, especially in largemouth bass. Therefore, this study investigated the tissue-specific transcriptomic and metabolomic effects of MS-222 anesthesia on largemouth bass (Micropterus salmoides). Methods: Experimental groups exposed to 40 mg/L MS-222 for 12 h were compared with untreated controls, and then transcriptomic and metabolomic analyses were performed on gill and liver samples. Results: Gill tissues exhibited 3252 differentially expressed genes (DEGs; 2309 upregulated and 943 downregulated) enriched in cardiac muscle contraction, cytoskeletal regulation, glycolysis, and toll-like receptor pathways for anesthetic adaptation. In contrast, liver tissues showed fewer DEGs (1140; 654 upregulated and 486 downregulated) primarily linked to metabolic network reorganization such as endoplasmic reticulum protein processing, PPAR signaling, and ribosome biogenesis. Metabolomic profiling demonstrated inverse patterns, with 173 differential metabolites in gills versus 297 in liver samples. Methyl nicotinate and N-acetyl-L-phenylalanine were the most significantly upregulated in the gill and liver samples. Metabolic pathway enrichment analysis revealed that MS-222-induced differential metabolites in the gill and liver of largemouth bass were predominantly associated with pathways involved in amino acid, fatty acid, phenylalanine, and nucleotide metabolism. Conclusions: These findings reveal that MS-222 anesthesia triggers organ-specific physiological adaptations through the differential regulation of metabolic and immune pathways, which provide multi-omics insights into the mechanistic basis of anesthetic responses in fish, highlighting distinct tissue strategies for managing chemical stress. Full article
(This article belongs to the Special Issue Effects of Stress on Animal Metabolism)
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16 pages, 1293 KiB  
Article
Comprehensive Characterization of Serum Lipids of Dairy Cows: Effects of Negative Energy Balance on Lipid Remodelling
by Zhiqian Liu, Wenjiao Wang, Joanne E. Hemsworth, Coralie M. Reich, Carolyn R. Bath, Monique J. Berkhout, Muhammad S. Tahir, Vilnis Ezernieks, Leah C. Marett, Amanda J. Chamberlain, Mike E. Goddard and Simone J. Rochfort
Metabolites 2025, 15(4), 274; https://doi.org/10.3390/metabo15040274 - 15 Apr 2025
Viewed by 389
Abstract
Background: The presence and concentration of lipids in serum of dairy cows have significant implications for both animal health and productivity and are potential biomarkers for several common diseases. However, information on serum lipid composition is rather fragmented, and lipid remodelling during the [...] Read more.
Background: The presence and concentration of lipids in serum of dairy cows have significant implications for both animal health and productivity and are potential biomarkers for several common diseases. However, information on serum lipid composition is rather fragmented, and lipid remodelling during the transition period is only partially understood. Methods: Using a combination of reversed-phase liquid chromatography-mass spectrometry (RP-LC-MS), hydrophilic interaction-mass spectrometry (HILIC-MS), and lipid annotation software, we performed a comprehensive identification and quantification of serum of dairy cows in pasture-based Holstein-Friesian cows. The lipid remodelling induced by negative energy balance was investigated by comparing the levels of all identified lipids between the fresh lactation (5–14 days in milk, DIM) and full lactation (65–80 DIM) stages. Results: We identified 535 lipid molecular species belonging to 19 classes. The most abundant lipid class was cholesteryl ester (CE), followed by phosphatidylcholine (PC), sphingomyelin (SM), and free fatty acid (FFA), whereas the least abundant lipids included phosphatidylserine (PS), phosphatidic acid (PA), phosphatidylglycerol (PG), acylcarnitine (AcylCar), ceramide (Cer), glucosylceramide (GluCer), and lactosylceramide (LacCer). Conclusions: A remarkable increase in most lipids and a dramatic decrease in FFAs, AcylCar, and DHA-containing species were observed at the full lactation compared to fresh lactation stage. Several serum lipid biomarkers for detecting negative energy balance in cows were also identified. Full article
(This article belongs to the Special Issue Effects of Stress on Animal Metabolism)
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