{"title":"Anoxia elicits the strongest stimulatory protective response in insect low-oxygen hormesis","authors":"Jacob B. Campbell, Giancarlo López-Martínez","doi":"10.1016/j.cotox.2022.02.004","DOIUrl":null,"url":null,"abstract":"<div><p><span>The manipulation of oxygen to trigger the stimulatory response known as hormesis<span> is an area of interest in insects that was born almost fifty years ago. Varying low-oxygen treatments have been investigated many times since with differing responses found; some hormetic/some harmful. In this review, we summarize the recent advancements in low-oxygen hormesis with a focus on severe hypoxia and anoxia. These two low-oxygen treatments fall below the critical partial oxygen pressure (PO</span></span><sub>2</sub>, often referred to as P<sub>crit</sub>), the oxygen level where metabolism is impaired, for insects and represent the most robust forms of this type of hormesis, yielding the largest protective responses recorded in insects. We introduce six factors that influence the effectiveness of low-oxygen hormesis: oxygen content, length of and age at treatment, treatment method, sex, and genetic background. Additionally, we present a glimpse at the known mechanism of this type of hormesis.</p></div>","PeriodicalId":37736,"journal":{"name":"Current Opinion in Toxicology","volume":"29 ","pages":"Pages 51-56"},"PeriodicalIF":6.1000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Toxicology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2468202022000079","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"TOXICOLOGY","Score":null,"Total":0}
引用次数: 5
Abstract
The manipulation of oxygen to trigger the stimulatory response known as hormesis is an area of interest in insects that was born almost fifty years ago. Varying low-oxygen treatments have been investigated many times since with differing responses found; some hormetic/some harmful. In this review, we summarize the recent advancements in low-oxygen hormesis with a focus on severe hypoxia and anoxia. These two low-oxygen treatments fall below the critical partial oxygen pressure (PO2, often referred to as Pcrit), the oxygen level where metabolism is impaired, for insects and represent the most robust forms of this type of hormesis, yielding the largest protective responses recorded in insects. We introduce six factors that influence the effectiveness of low-oxygen hormesis: oxygen content, length of and age at treatment, treatment method, sex, and genetic background. Additionally, we present a glimpse at the known mechanism of this type of hormesis.
期刊介绍：
The aims and scope of Current Opinion in Toxicology is to systematically provide the reader with timely and provocative views and opinions of the highest qualified and recognized experts on current advances in selected topics within the field of toxicology. The goal is that Current Opinion in Toxicology will be an invaluable source of information and perspective for researchers, teachers, managers and administrators, policy makers and students. Division of the subject into sections: For this purpose, the scope of Toxicology is divided into six selected high impact themed sections, each of which is reviewed once a year: Mechanistic Toxicology, Metabolic Toxicology, Risk assessment in Toxicology, Genomic Toxicology, Systems Toxicology, Translational Toxicology.
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