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Renal transcriptome profiles in mice reveal the need for sufficient water intake irrespective of the drinking water type. Sci Rep 2022; 12:10911. [PMID: 35764881 PMCID: PMC9240086 DOI: 10.1038/s41598-022-14815-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 06/13/2022] [Indexed: 12/05/2022] Open
Abstract
This study sought to characterize the impact of long-term dehydration in terms of physiological and biochemical parameters, as well as renal transcriptomes. Furthermore, we assessed whether consumption of specific types of water elicit more beneficial effects on these health parameters. To this end, C57BL/6 mice were either provided water for 15 min/day over 2 and 4 weeks (water restricted; RES), or ad libitum access to distilled (CON), tap, spring, or purified water. Results show that water restriction decreases urine output and hematocrit levels while increasing brain vasopressin mRNA levels in RES mice compared to control mice (CON). Meanwhile, blood urea nitrogen and creatinine levels were higher in the RES group compared to the CON group. Kidney transcriptome analysis further identified kidney damage as the most significant biological process modulated by dehydration. Mechanistically, prolonged dehydration induces kidney damage by suppressing the NRF2-signaling pathway, which targets the cytoprotective defense system. However, type of drinking water does not appear to impact physiological or blood biochemical parameters, nor the renal transcriptome profile, suggesting that sufficient water consumption is critical, irrespective of the water type. Importantly, these findings also inform practical action for environmental sustainability by providing a theoretical basis for reducing bottled water consumption.
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Tang S, Doering JA, Sun J, Beitel SC, Shekh K, Patterson S, Crawford S, Giesy JP, Wiseman SB, Hecker M. Linking Oxidative Stress and Magnitude of Compensatory Responses with Life-Stage Specific Differences in Sensitivity of White Sturgeon (Acipenser transmontanus) to Copper or Cadmium. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9717-9726. [PMID: 27509013 DOI: 10.1021/acs.est.6b03301] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sensitivity of white sturgeon (Acipenser transmontanus) to copper (Cu) or cadmium (Cd) has been shown to significantly differ as a function of life-stage. This study investigated oxidative stress, metal homeostasis, and associated compensatory responses as potential mechanisms of this sensitivity pattern in three early life-stages. Sturgeon were most sensitive to Cu at 15 days post hatch (dph), which was accompanied by a significant increase in lipid peroxidation (LPO). Genes involved with amelioration of oxidative stress were significantly less inducible at this stage than in older, less sensitive fry. At 48 dph, acute lethality of sturgeon exposed to Cd was greatest and body LPO was significantly induced by 3.5-fold at 5 μg Cd/L. Moreover, there was a small but significant increase in antioxidative responses. At 139 dph, sturgeon were most tolerant to Cu and Cd and accumulation of these metals was least. Also, expression of metallothionein (MT) and apoptotic genes were greatest while expression of metal transporters was reduced and concentration of LPO was not different from controls. Our results suggest that life-stage specific sensitivity of white sturgeon to metals is complex, encompassing differences in the ability to mount compensatory responses important for metal homeostasis and combating oxidative stress and concomitant damages.
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Affiliation(s)
- Song Tang
- School of Environment and Sustainability, University of Saskatchewan , Saskatoon, SK S7N 5C8, Canada
| | - Jon A Doering
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Toxicology Graduate Program, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Jianxian Sun
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Shawn C Beitel
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Toxicology Graduate Program, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Kamran Shekh
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Toxicology Graduate Program, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Sarah Patterson
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Toxicology Graduate Program, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Sarah Crawford
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Toxicology Graduate Program, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
- Department of Veterinary Biomedical Sciences, University of Saskatchewan , Saskatoon, SK S7N 5B4, Canada
- Zoology Department, Center for Integrative Toxicology, Michigan State University , East Lansing, Michigan 48824, United States
- School of Biological Sciences, University of Hong Kong , Hong Kong, SAR 999077, China
- Department of Biology, Hong Kong Baptist University , Hong Kong, SAR 999077, China
| | - Steve B Wiseman
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
| | - Markus Hecker
- School of Environment and Sustainability, University of Saskatchewan , Saskatoon, SK S7N 5C8, Canada
- Toxicology Centre, University of Saskatchewan , Saskatoon, SK S7N 5B3, Canada
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Ferencz Á, Hermesz E. Impact of acute Cd²⁺ exposure on the antioxidant defence systems in the skin and red blood cells of common carp (Cyprinus carpio). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:6912-6919. [PMID: 25471726 DOI: 10.1007/s11356-014-3923-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/26/2014] [Indexed: 06/04/2023]
Abstract
Cd(2+)-induced oxidative stress and its effects on the expression of stress biomarkers and on macromolecule damage in the skin and blood of common carp were studied. Both tissues play important roles in the defence mechanisms against external hazards, serving as an anatomical barrier and as connecting tissue between the organs. In the skin, the production of peroxynitrite anion and hydrogen peroxide was almost doubled after exposure to 10 mg/L Cd(2+). The accumulation of these oxidant molecules suggests an intensive production of superoxide anion and nitrogen monoxide and the development of oxidative and/or nitrosative stress. Although the metallothioneins and the components of the glutathione redox system were activated in the skin, the accumulation of reactive intermediates led to the enhanced damage of lipid molecules after 24 h of metal exposure. In the blood, the basal levels of metallothionein messenger RNAs (mRNAs) were 2-2.5-fold of that measured in the skin. This high level of metallothionein expression could be the reason that the blood was less affected by an acute Cd(2+) challenge and the metallothionein and glutathione systems were not activated.
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Affiliation(s)
- Ágnes Ferencz
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, P.O. Box 533, 6701, Szeged, Hungary
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