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Kim JA, Kim MJ, Park YS, Kim JH, Choi CY. Melatonin injection and red light irradiation affect the antioxidant response and cell damage in disk abalone (Haliotis discus hannai) exposed to high water temperatures. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2024; 341:487-498. [PMID: 38390697 DOI: 10.1002/jez.2800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/13/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
The effects of red light-emitting diode (LED) light irradiation (630 nm, 0.5 W/m2) and melatonin (10-8 and 10-7 M) on oxidative stress and physiological responses in abalones exposed to high temperatures (28°C) were investigated. Changes in messenger RNA (mRNA) expressions of melatonin receptor (MT-R), heat shock protein 70 (HSP70), and antioxidant enzymes, as well as alterations in H2O2 levels in the hemolymph, were examined. The results revealed that high-temperature-stressed abalones treated with melatonin injections or exposed to red LED light showed a significant increase in MT-R mRNA expression, while HSP70 mRNA expression decreased. Notably, HSP70 mRNA expression levels in the red LED light-irradiated group were similar to those in the group injected with 10-8 M melatonin after 24 h exposure. Abalones treated with melatonin at 20°C or irradiated with red LED light exhibited decreased H2O2 levels and reduced antioxidant enzyme mRNA expression compared with those of the control group. However, the high-temperature environment induced oxidative stress in abalones, leading to increased antioxidant enzyme mRNA expression compared with that under 20°C conditions. Moreover, abalones exposed to high-temperature stress exhibited hepatopancreatic DNA damage, which was attenuated by melatonin treatment or red LED light irradiation. Hence, red LED light reduces oxidative stress, boosts antioxidant enzymes, and alleviates DNA damage in high-temperature-stressed abalones, akin to 10-8 M melatonin treatment. Therefore, considering the practical challenges of continuous melatonin administration to abalones, utilizing red LED light emerges as a practical, effective alternative to protect abalones from oxidative stress compared to 10-8 M melatonin treatment.
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Affiliation(s)
- Jin A Kim
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan, Korea
| | - Min Ju Kim
- Division of Marine BioScience, Korea Maritime and Ocean University, Busan, Korea
| | - Young-Su Park
- Department of Nursing, Catholic University of Pusan, Busan, Korea
| | - Jun-Hwan Kim
- Department of Marine Life Sciences, Jeju National University, Jeju, Korea
| | - Cheol Young Choi
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan, Korea
- Division of Marine BioScience, Korea Maritime and Ocean University, Busan, Korea
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Ye Y, Huang J, Li S, Li Y, Zhao Y. Effects of Dietary Melatonin on Antioxidant Capacity, Immune Defense, and Intestinal Microbiota in Red Swamp Crayfish (Procambarus clarkii). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024:10.1007/s10126-024-10326-8. [PMID: 38814375 DOI: 10.1007/s10126-024-10326-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024]
Abstract
The aim of this study was to investigate the effects of melatonin (MT) feed supplementation on the antioxidant capacity, immune defense, and intestinal flora in Procambarus clarkii (P. clarkii). Six groups of P. clarkii were fed test feeds containing different levels of MT: 0 mg/kg (control), 22.5, 41.2, 82.7, 165.1, and 329.2 mg/kg for a duration of 2 months. The specific growth rate, hepatosomatic index, and condition factor were recorded highest in the test group of shrimp fed an MT concentration of 165.1 mg/kg. Compared to the control group, the rate of apoptosis was lower in hepatopancreas cells of P. clarkii supplemented with high concentrations of MT. Analyses of antioxidant capacity and immune-response-related enzymes in the hepatopancreas indicated that dietary supplementation of MT significantly augmented both the antioxidant system and immune responses. Dietary MT supplementation significantly increased the expression levels of antioxidant-immunity-related genes and decreased the expression levels of genes linked to apoptosis. Dietary MT was associated with an elevation in the abundance of the Firmicutes and a reduction in the abundance of the Proteobacteria in the intestines; besides, resulting in an increase in the abundance of beneficial bacteria, such as Lactobacilli. The broken-line model indicated that the suitable MT concentration was 154.09-157.09 mg/kg. MT supplementation enhanced the growth performance of P. clarkii, exerting a positive influence on the intestinal microbiota, and bolstered both immune response and disease resistance. Thus, this study offered novel perspectives regarding the application of dietary MT supplementation within the aquaculture field.
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Affiliation(s)
- Yucong Ye
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Jiarong Huang
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Siwen Li
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yiming Li
- Fishery Machinery and Instrument Research Institute, Chinese Academy of Fisheries Sciences, 63 Chifeng Rd, Shanghai, 200092, China.
| | - Yunlong Zhao
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
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Simões LAR, Normann RS, Chung JS, Vinagre AS. A brief and updated introduction to the neuroendocrine system of crustaceans. Mol Cell Endocrinol 2024; 590:112265. [PMID: 38697385 DOI: 10.1016/j.mce.2024.112265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/12/2024] [Accepted: 04/30/2024] [Indexed: 05/05/2024]
Abstract
The neuroendocrine system of crustaceans is complex and regulates many processes, such as development, growth, reproduction, osmoregulation, behavior, and metabolism. Once stimulated, crustaceans' neuroendocrine tissues modulate the release of monoamines, ecdysteroids, and neuropeptides that can act as hormones or neurotransmitters. Over a few decades, research has unraveled some mechanisms governing these processes, substantially contributing to understanding crustacean physiology. More aspects of crustacean neuroendocrinology are being comprehended with molecular biology, transcriptome, and genomics analyses. Hence, these studies will also significantly enhance the ability to cultivate decapods, such as crabs and shrimps, used as human food sources. In this review, current knowledge on crustacean endocrinology is updated with new findings about crustacean hormones, focusing mainly on the main neuroendocrine organs and their hormones and the effects of these molecules regulating metabolism, growth, reproduction, and color adaptation. New evidence about vertebrate-type hormones found in crustaceans is included and discussed. Finally, this review may assist in understanding how the emerging chemicals of environmental concern can potentially impair and disrupt crustacean's endocrine functions and their physiology.
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Affiliation(s)
- Leonardo Airton Ressel Simões
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Post Graduation Program in Biological Sciences, Porto Alegre, RS, Brazil; Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Rafaella Sanfelice Normann
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Post Graduation Program in Biological Sciences, Porto Alegre, RS, Brazil; Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - J Sook Chung
- Institute of Marine and Environmental Technology (IMET), University of Maryland Center for Environmental Sciences (UMCES), Baltimore, MD, USA
| | - Anapaula Sommer Vinagre
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Post Graduation Program in Biological Sciences, Porto Alegre, RS, Brazil; Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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Nie X, Huang C, Wei J, Wang Y, Hong K, Mu X, Liu C, Chu Z, Zhu X, Yu L. Effects of Photoperiod on Survival, Growth, Physiological, and Biochemical Indices of Redclaw Crayfish ( Cherax quadricarinatus) Juveniles. Animals (Basel) 2024; 14:411. [PMID: 38338053 PMCID: PMC10854630 DOI: 10.3390/ani14030411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Through a 30-day experiment, this study investigated the effects of five photoperiods (0L:24D, 6L:18D, 12L:12D, 18L:6D, and 24L:0D) on the survival, enzyme activity, body color, and growth-related gene expression of redclaw crayfish (Cherax quadricarinatus) juveniles. The results showed that C. quadricarinatus juveniles under 18L:6D and 24L:0D photoperiods exhibited the highest survival rate, which was significantly higher than the survival rates of juveniles under the other three photoperiods (p < 0.05). However, the 0L:24D group had the highest final body weight and weight gain rate, significantly surpassing those of the 12L:12D, 18L:6D, and 24L:0D groups (p < 0.05). Regarding enzyme activity and hormone levels, juveniles under the 18L:6D photoperiod exhibited relatively higher activity of superoxide dismutase (SOD), acid phosphatase (ACP), and lysozyme (LZM) enzymes than those under other photoperiods, but their levels of melatonin and cortisol were relatively low. In addition, the 24L:0D group showed the highest malondialdehyde (MDA) content. Analysis of gene expression levels revealed that retinoid X receptor (RXR) and α-amylase (α-AMY) genes in C. quadricarinatus juveniles exhibited significantly higher expression levels under the 18L:6D photoperiod than those under the other four photoperiods (p < 0.05). With increasing daylight exposure, the body color of C. quadricarinatus changed from pale blue to yellow-brown. In summary, C. quadricarinatus juveniles achieved high survival rates, good growth performance, strong antioxidant stress response, and immune defense capabilities under an 18 h photoperiod. Therefore, in the industrial seedling cultivation of redclaw crayfish, it is recommended to provide 18 h of daily light. Further, the study demonstrated the ability to manipulate the body color of C. quadricarinatus through controlled artificial photoperiods. These findings provide essential technical parameters needed for the industrial cultivation of C. quadricarinatus juveniles.
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Affiliation(s)
- Xiangxing Nie
- School of Fishery, Zhejiang Ocean University, Zhoushan 316000, China; (X.N.); (C.H.); (Z.C.)
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Cuixue Huang
- School of Fishery, Zhejiang Ocean University, Zhoushan 316000, China; (X.N.); (C.H.); (Z.C.)
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Jie Wei
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Yakun Wang
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Kunhao Hong
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Xidong Mu
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Modern Recreational Fisheries Engineering Technology Center, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (X.M.); (C.L.)
| | - Chao Liu
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Modern Recreational Fisheries Engineering Technology Center, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (X.M.); (C.L.)
| | - Zhangjie Chu
- School of Fishery, Zhejiang Ocean University, Zhoushan 316000, China; (X.N.); (C.H.); (Z.C.)
| | - Xinping Zhu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
| | - Lingyun Yu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; (J.W.); (Y.W.); (K.H.); (X.Z.)
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Yang Y, Tian J, Xu W, Ping C, Du X, Ye Y, Zhu B, Huang Y, Li Y, Jiang Q, Zhao Y. Comparative metabolomics analysis investigating the impact of melatonin-enriched diet on energy metabolism in the crayfish, Cherax destructor. J Comp Physiol B 2023; 193:615-630. [PMID: 37833417 DOI: 10.1007/s00360-023-01518-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/01/2023] [Accepted: 09/11/2023] [Indexed: 10/15/2023]
Abstract
Melatonin is a multifunctional bioactive molecule present in almost all organisms and has been gradually used in the aquaculture industry in recent years. Energy metabolism is an essential process for individuals to maintain their life activities; however, the process through which melatonin regulates energy metabolism in aquatic animals remains unclear. The present study aimed to conduct a comprehensive analysis of the regulatory mechanism of melatonin for energy metabolism in Cherax destructor by combining metabolomics analysis with the detection of the key substance content, enzymatic activity, and gene expression levels in the energy metabolism process after culturing with dietary melatonin supplementation for 8 weeks. Our results showed that dietary melatonin increased the content of glycogen, triglycerides, and free fatty acids; decreased lactate levels; and promoted the enzymatic activity of pyruvate kinase (PK), malate dehydrogenase (MDH), and acetyl-CoA carboxylase. The results of gene expression analysis showed that dietary melatonin also increased the expression levels of hexokinase, PK, MDH, lactate dehydrogenase, lipase, and fatty acid synthase genes. The results of metabolomics analysis showed that differentially expressed metabolites were significantly enriched in lysine degradation and glycerophospholipid metabolism. In conclusion, our study demonstrates that dietary melatonin increased oxidative phosphorylation, improved glucose utilization, and promoted storage of glycogen and lipids in C. destructor. These lipids are used not only for energy storage but also to maintain the structure and function of cell membranes. Our results further add to the understanding of the mechanisms of energy regulation by melatonin in crustaceans.
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Affiliation(s)
- Ying Yang
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Jiangtao Tian
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Wenyue Xu
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Cuobaima Ping
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Xinglin Du
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yucong Ye
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Bihong Zhu
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yizhou Huang
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yiming Li
- Fishery Machinery and Instrument Research Institute, Chinese Academy of Fisheries Sciences, Shanghai, 200092, China
| | - Qichen Jiang
- Freshwater Fisheries Research Institute of Jiangsu Province, 79 Chating East Street, Nanjing, 210017, China
| | - Yunlong Zhao
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200241, China.
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Hernández-Velázquez IM, Zamora-Briseño JA, Hernández-Bolio GI, Hernández-Nuñez E, Lozano-Álvarez E, Briones-Fourzán P, Rodríguez-Canul R. Metabolic changes in antennal glands of Caribbean spiny lobsters Panulirus argus infected by Panulirus argus virus 1 (PaV1). DISEASES OF AQUATIC ORGANISMS 2022; 151:11-22. [PMID: 36047670 DOI: 10.3354/dao03682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Panulirus argus virus 1 (PaV1) (Family Mininucleoviridae) causes chronic and systemic infection in wild juvenile spiny lobsters Panulirus argus (Latreille, 1804), ending in death by starvation and metabolic wasting. In marine decapods, the antennal gland is involved in osmoregulation and excretion. In this compact organ, fluid is filtered from the hemolymph, and ions are reabsorbed to produce a hypotonic urine. Although PaV1 is released with the urine in infected individuals, little is known regarding the metabolic effect of PaV1 in the antennal gland. The objective of this study was to perform a comparative evaluation of the metabolic profile of the antennal gland of clinically PaV1-infected lobsters versus those with no clinical signs of infection, using proton nuclear magnetic resonance analysis. Overall, 48 compounds were identified, and the most represented metabolites were those involved in carbohydrate, amino acid, energy, and nucleotide metabolism. Most of the metabolites that were down-regulated in the infected group were essential and non-essential amino acids. Some metabolites involved in the urea cycle and carbohydrate metabolism were also altered. This study represents a first approach to the metabolic evaluation of the antennal gland. We broadly discuss alterations in the content of several proteinogenic and non-proteinogenic amino acids and other key metabolites involved in energetic and nucleotide metabolism.
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Affiliation(s)
- Ioreni Margarita Hernández-Velázquez
- Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional. Carr. Mérida-Progreso, CP 97310 Mérida, Yucatán, México
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David DD, de Assis LVM, Moraes MN, Zanotto FP, Castrucci AMDL. CasEcR and CasMIH Genes in the Blue Crab, Callinectes sapidus: A Temporal Evaluation and Melatonin Effects. Front Physiol 2022; 13:903060. [PMID: 35800348 PMCID: PMC9253825 DOI: 10.3389/fphys.2022.903060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/26/2022] [Indexed: 11/24/2022] Open
Abstract
Environmental cues synchronize endogenous rhythms of many physiological processes such as hormone synthesis and secretion. Little is known about the diurnal pattern of hormones and gene expression of the Callinectes sapidus molt cycle. We aimed to investigate in the eyestalk and hepatopancreas of premolt and intermolt C. sapidus the following parameters: 1) the diurnal expression of the ecdysteroid receptor CasEcR isoforms, and the molt inhibiting hormone CasMIH; 2) the diurnal hemolymph ecdysteroid and melatonin levels; and 3) melatonin effects on the transcripts of the above-mentioned genes in intermolt C. sapidus. Ecdysteroid levels were higher in the premolt than the intermolt animals at all time points evaluated (ZTs). Premolt crabs displayed a variation of ecdysteroid concentration between time points, with a reduction at ZT17. No difference in the melatonin level was seen in either molt stage or between stages. In the eyestalk of intermolt animals, CasEcR expression oscillated, with a peak at ZT9, and premolt crabs have a reduction at ZT9; CasMIH transcripts did not vary along 24 h in either molt stage. Moreover, the evaluated eyestalk genes were more expressed at ZT9 in the intermolt than the premolt crabs. In the hepatopancreas, CasEcR expression showed a peak at ZT9 in premolt crabs. Exogenous melatonin (10−7 mol/animal) reduced the expression of both genes in the eyestalk at ZT17. In the hepatopancreas, melatonin markedly increased the expression of the CasEcR gene at ZT9. Taken altogether, our results are pioneer in demonstrating the daily oscillation of gene expression associated to molt cycle stages, as well as the daily ecdysteroid and melatonin levels and the remarkable influence of melatonin on the molt cycle of C. sapidus.
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Affiliation(s)
- Daniela Dantas David
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Leonardo Vinícius Monteiro de Assis
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
- Center of Brain, Behavior and Metabolism, Institute of Neurobiology, Lübeck University, Lübeck, Germany
| | - Maria Nathalia Moraes
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
- Laboratory of Neurobiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Flávia Pinheiro Zanotto
- Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Ana Maria de Lauro Castrucci
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
- Department of Biology, University of Virginia, Charlottesville, United States
- *Correspondence: Ana Maria de Lauro Castrucci,
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Cremer R, Wacker A, Schwarzenberger A. More Light Please: Daphnia Benefit From Light Pollution by Increased Tolerance Toward Cyanobacterial Chymotrypsin Inhibitors. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.834422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Cryptochromes are evolutionary ancient blue-light photoreceptors that are part of the circadian clock in the nervous system of many organisms. Cryptochromes transfer information of the predominant light regime to the clock which results in the fast adjustment to photoperiod. Therefore, the clock is sensitive to light changes and can be affected by anthropogenic Artificial Light At Night (ALAN). This in turn has consequences for clock associated behavioral processes, e.g., diel vertical migration (DVM) of zooplankton. In freshwater ecosystems, the zooplankton genus Daphnia performs DVM in order to escape optically hunting predators and to avoid UV light. Concomitantly, Daphnia experience circadian changes in food-supply during DVM. Daphnia play the keystone role in the carbon-transfer to the next trophic level. Therefore, the whole ecosystem is affected during the occurrence of cyanobacteria blooms as cyanobacteria reduce food quality due to their production of digestive inhibitors (e.g., protease inhibitors). In other organisms, digestion is linked to the circadian clock. If this is also the case for Daphnia, the expression of protease genes should show a rhythmic expression following circadian expression of clock genes (e.g., cryptochrome 2). We tested this hypothesis and demonstrated that gene expression of the clock and of proteases was affected by ALAN. Contrary to our expectations, the activity of one type of proteases (chymotrypsins) was increased by ALAN. This indicates that higher protease activity might improve the diet utilization. Therefore, we treated D. magna with a chymotrypsin-inhibitor producing cyanobacterium and found that ALAN actually led to an increase in Daphnia’s growth rate in comparison to growth on the same cyanobacterium in control light conditions. We conclude that this increased tolerance to protease inhibitors putatively enables Daphnia populations to better control cyanobacterial blooms that produce chymotrypsin inhibitors in the Anthropocene, which is defined by light pollution and by an increase of cyanobacterial blooms due to eutrophication.
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Ortega P, Vitorino HA, Green S, Zanotto FP, Chung JS, Moreira RG. Experimental effects of cadmium on physiological response of Callinectes danae (Crustacea, Portunidae) from environments with different levels of Cd contamination. Comp Biochem Physiol C Toxicol Pharmacol 2022; 251:109210. [PMID: 34628057 DOI: 10.1016/j.cbpc.2021.109210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/27/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022]
Abstract
Cadmium (Cd) can adversely affect aquatic life, altering reproductive and molting processes in crustaceans. The objective of this study was to evaluate the influence of Cd on reproduction and molting in the crab Callinectes danae. Adult females were obtained from environments with different levels of pollution: low (LC), medium (MC), and high contaminated (HC) areas. Animals from LC, MC, and HC areas were exposed to 0, 0.5, and 2 mg L-1 of CdCl2 for 3 h. Cd bioaccumulation, oxidative stress (evaluated by antioxidant enzymes activity), and lipid peroxidation (LPX) were analyzed in mature ovaries (stage II), gills, and hepatopancreas. The expression levels of crustacean hyperglycemic hormone (CHH) and molt-inhibiting hormone (MIH) genes were quantified in the eyestalks, while 17β-estradiol (E2) and melatonin concentration were measured in the hemolymph. Cd bioaccumulated mainly in the hepatopancreas and gills, with increased E2, LPX, and antioxidant enzymes in HC compared to the LC region. Decreased CHH and MIH transcripts were observed in the animals from HC regions compared to LC and MC areas. Physiological differences were recorded, especially for bioaccumulation, oxidative stress, and hormone levels, in animals sampled in HC areas compared to LC and MC regions. In conclusion, the physiological damage triggered by Cd could be reduced due to higher levels of melatonin and antioxidant enzymes in HC areas.
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Affiliation(s)
- Priscila Ortega
- Laboratório de Metabolismo e Reprodução de Organismos Aquáticos (LAMEROA), Instituto de Biociências (IB), Universidade de São Paulo (USP), Brazil.
| | - Hector Aguilar Vitorino
- Laboratório de Química Bioinorgânica e Metalofármacos (LAQBAM), Instituto de Química (IQ), Universidade de São Paulo (USP), Brazil; BIOMET Research Group, Faculty of Science, National University of Engineering, Av. Túpac Amaru 210, Rímac 15333, Lima, Peru.
| | - Shadaesha Green
- Institute of Marine and Environmental Technology (IMET), University of Maryland Center for Environmental Science (UMCES), Baltimore, USA.
| | - Flavia P Zanotto
- Laboratório de Biologia Celular de Invertebrados Marinhos (LabCel), Instituto de Biociências (IB), Universidade de São Paulo (USP), Brazil.
| | - J Sook Chung
- Institute of Marine and Environmental Technology (IMET), University of Maryland Center for Environmental Science (UMCES), Baltimore, USA.
| | - Renata G Moreira
- Laboratório de Metabolismo e Reprodução de Organismos Aquáticos (LAMEROA), Instituto de Biociências (IB), Universidade de São Paulo (USP), Brazil.
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Kamruzzaman ASM, Hiragaki S, Watari Y, Natsukawa T, Yasuhara A, Ichihara N, Mohamed AA, Elgendy AM, Takeda M. Clock-controlled arylalkylamine N-acetyltransferase (aaNAT) regulates circadian rhythms of locomotor activity in the American cockroach, Periplaneta americana, via melatonin/MT2-like receptor. J Pineal Res 2021; 71:e12751. [PMID: 34091948 DOI: 10.1111/jpi.12751] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/03/2021] [Indexed: 12/27/2022]
Abstract
Melatonin (MEL) orchestrates daily and seasonal rhythms (eg, locomotion, sleep/wake cycles, and migration among other rhythms) in diverse organisms. We investigated the effects of pharmacological doses (0.03-1 mM) of exogenous MEL intake in the cockroach, Periplaneta americana, on locomotor activity. As per os MEL concentration increased, cockroach locomotor rhythm in light-dark (LD) cycles became more synchronized. The ratio of night activity to 24-h activity increased and the acrophase (peak) slightly advanced. MEL application also influenced total activity bouts in the free-running rhythm. Since MEL slightly influenced τ in the free-running rhythms, it is not a central element of the circadian pacemaker but must influence mutual coupling of multi-oscillatory system components. Arylalkylamine N-acetyltransferase (aaNAT) regulates enzymatic production of MEL. aaNAT activities vary in circadian rhythms, and the immunoreactive aaNAT (aaNAT-ir) is colocalized with the key clock proteins cycle (CYC)-ir and pigment-dispersing factor (PDF)-ir These are elements of the central pacemaker and its output pathway as well as other circadian landmarks such as the anterior and posterior optic commissures (AOC and POC, respectively). It also partially shares immunohistochemical reactivity with PER-ir and DBT-ir neurons. We analyzed the role of Pamericana aaNAT1 (PaaaNAT1) (AB106562.1) by injecting dsRNAaaNAT1 . qPCR showed a decrease in accumulations of mRNAs encoding PaaaNAT1. The injections led to arrhythmicity in LD cycles and the arrhythmicity persisted in constant dark (DD). Continuous administration of MEL resynchronized the rhythm after arrhythmicity was induced by dsRNAaaNAT1 injection, suggesting that PaaaNAT is the key regulator of the circadian system in the cockroach via MEL production. PaaaNAT1 contains putative E-box regions which may explain its tight circadian control. The receptor that mediates MEL function is most likely similar to the mammalian MT2, because injecting the competitive MT2 antagonist luzindole blocked MEL function, and MEL injection after luzindole treatment restored MT function. Human MT2-ir was localized in the circadian neurons in the cockroach brain and subesophageal ganglion. We infer that MEL and its synthesizing enzyme, aaNAT, constitute at least one circadian output pathway of locomotor activity either as a distinct route or in association with PDF system.
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Affiliation(s)
- A S M Kamruzzaman
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Susumu Hiragaki
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Yasuhiko Watari
- Faculty of Clinical Education, Ashiya University, Ashiya, Japan
| | - Takashi Natsukawa
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Akie Yasuhara
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Naoyuki Ichihara
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Amr A Mohamed
- Department of Entomology, Faculty of Science, Cairo University, Giza, Egypt
| | - Azza M Elgendy
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
- Department of Entomology, Faculty of Science, Cairo University, Giza, Egypt
| | - Makio Takeda
- Graduate School of Natural Science and Technology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
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11
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Feleke M, Bennett S, Chen J, Chandler D, Hu X, Xu J. Biological insights into the rapid tissue regeneration of freshwater crayfish and crustaceans. Cell Biochem Funct 2021; 39:740-753. [PMID: 34165197 DOI: 10.1002/cbf.3653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/03/2021] [Indexed: 11/12/2022]
Abstract
The freshwater crayfish is capable of regenerating limbs, following autotomy, injury and predation. In arthropod species, regeneration and moulting are two processes linked and strongly regulated by ecdysone. The regeneration of crayfish limbs is divided into wound healing, blastema formation, cellular reprogramming and tissue patterning. Limb blastema cells undergo proliferation, dedifferentiation and redifferentiation. A limb bud, containing folded segments of the regenerating limb, is encased within a cuticular sheath. The functional limb regenerates, in proecdysis, in two to three consecutive moults. Rapid tissue growth is regulated by hormones, limb nerves and local cells. The TGF-β/activin signalling pathway has been determined in the crayfish, P. fallax f. virginalis, and is suggested as a potential regulator of tissue regeneration. In this review article, we discuss current understanding of tissue regeneration in the crayfish and various crustaceans. A thorough understanding of the cellular, genetic and molecular pathways of these biological processes is promising for the development of therapeutic applications for a wide array of diseases in regenerative medicine.
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Affiliation(s)
- Mesalie Feleke
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Samuel Bennett
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Jiazhi Chen
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Guangdong Provincial Key Laboratory of Industrial Surfactant, Guangdong Research Institute of Petrochemical and Fine Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, China
| | - David Chandler
- Australian Genome Research Facility, Medical Research Foundation, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Xiaoyong Hu
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Guangdong Research Institute of Petrochemical and Fine Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, China
| | - Jiake Xu
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
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12
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Nuñez JD, Sbragaglia V, Spivak ED, Chiaradia NM, Luppi TA. The magnitude of behavioural responses to artificial light at night depends on the ecological context in a coastal marine ecosystem engineer. MARINE ENVIRONMENTAL RESEARCH 2021; 165:105238. [PMID: 33486259 DOI: 10.1016/j.marenvres.2020.105238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Artificial light at night (ALAN) is one of the most extensive human geographic disturbances to wildlife. ALAN can have ecological and evolutionary effects on individual organisms, which in turn can affect populations, communities and ecosystems. Although understanding of the effects of ALAN on the ecology and biology of organisms has increased in recent years, most of these advances are in terrestrial environments, but scarce in marine habitats, especially in ecologically important transition areas such as saltmarshes. Here, we study the effects of ALAN on the behavioural budget (i.e. the proportion of time spent performing feeding, burrow maintenance and concealment) of the South American intertidal crab Neohelice granulata, which is an ecosystem engineer of coastal salt marshes. Moreover, we compared the impact of a gradient of ALAN between two different saltmarshes with contrasting environmental characteristics. Our results showed a relationship between ALAN and the behavioural budget. In particular, we showed that an increase in ALAN drove an increase in time spent maintaining burrows at the expense of time spent concealed in the burrow or feeding outside it. Such effects showed slightly different patterns in the two saltmarshes, possibly related to the reproductive value of burrows for mating and to predation risk. Considering the ecosystem role of N. granulata, we argue that the different effect of ALAN on its behavioural budget could have ecosystem effects that differ between the two saltmarshes studied here.
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Affiliation(s)
- J D Nuñez
- Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, Universidad Nacional de Mar del Plata-CONICET, CC1260, 7600, Mar del Plata, Provincia de Buenos Aires, Argentina.
| | - V Sbragaglia
- Department of Marine Renewable Resources, Institute of Marine Sciences, 08003, Barcelona, Spain
| | - E D Spivak
- Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, Universidad Nacional de Mar del Plata-CONICET, CC1260, 7600, Mar del Plata, Provincia de Buenos Aires, Argentina
| | - N M Chiaradia
- Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, Universidad Nacional de Mar del Plata-CONICET, CC1260, 7600, Mar del Plata, Provincia de Buenos Aires, Argentina
| | - T A Luppi
- Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, Universidad Nacional de Mar del Plata-CONICET, CC1260, 7600, Mar del Plata, Provincia de Buenos Aires, Argentina
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13
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Takahashi T, Ogiwara K. Roles of melatonin in the teleost ovary: A review of the current status. Comp Biochem Physiol A Mol Integr Physiol 2021; 254:110907. [PMID: 33482340 DOI: 10.1016/j.cbpa.2021.110907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
Melatonin, the neurohormone mainly synthesized in and secreted from the pineal gland of vertebrates following a circadian rhythm, is an important factor regulating various physiological processes, including reproduction. Recent data indicate that melatonin is also synthesized in the ovary and that it acts directly at the level of the ovary to modulate ovarian physiology. In some teleosts, melatonin is reported to affect ovarian steroidogenesis. The direct action of melatonin on the ovary could be a possible factor promoting oocyte maturation in teleosts. A role for melatonin in follicle rupture during ovulation in the teleost medaka has recently emerged. In addition, melatonin is suggested to affect oocyte maturation by its antioxidant activity. However, the molecular mechanisms underlying these direct effects of melatonin are largely unknown.
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Affiliation(s)
- Takayuki Takahashi
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
| | - Katsueki Ogiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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14
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Huang Z, Aweya JJ, Zhu C, Tran NT, Hong Y, Li S, Yao D, Zhang Y. Modulation of Crustacean Innate Immune Response by Amino Acids and Their Metabolites: Inferences From Other Species. Front Immunol 2020; 11:574721. [PMID: 33224140 PMCID: PMC7674553 DOI: 10.3389/fimmu.2020.574721] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022] Open
Abstract
Aquaculture production of crustaceans (mainly shrimp and crabs) has expanded globally, but disease outbreaks and pathogenic infections have hampered production in the last two decades. As invertebrates, crustaceans lack an adaptive immune system and mainly defend and protect themselves using their innate immune system. The immune system derives energy and metabolites from nutrients, with amino acids constituting one such source. A growing number of studies have shown that amino acids and their metabolites are involved in the activation, synthesis, proliferation, and differentiation of immune cells, as well as in the activation of immune related signaling pathways, reduction of inflammatory response and regulation of oxidative stress. Key enzymes in amino acid metabolism have also been implicated in the regulation of the immune system. Here, we reviewed the role played by amino acids and their metabolites in immune-modulation in crustaceans. Information is inferred from mammals and fish where none exists for crustaceans. Research themes are identified and the relevant research gaps highlighted for further studies.
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Affiliation(s)
- Zishu Huang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
| | - Jude Juventus Aweya
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
| | - Chunhua Zhu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Ngoc Tuan Tran
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
| | - Yujian Hong
- Guangdong Yuequn Marine Biological Research and Development Co., Ltd., Jieyang, China
| | - Shengkang Li
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
| | - Defu Yao
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
| | - Yueling Zhang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Shantou University-Universiti Malaysia Terengganu (STU-UMT) Joint Shellfish Research Laboratory, Shantou University, Shantou, China
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15
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Krylov VV, Papchenkova GA, Osipova EA. The Influence of Changes in Magnetic Variations and Light-Dark Cycle on Life-History Traits of Daphnia magna. Bioelectromagnetics 2020; 41:338-347. [PMID: 32297359 DOI: 10.1002/bem.22264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 03/12/2020] [Accepted: 04/02/2020] [Indexed: 12/18/2022]
Abstract
Day-night cycle is the main zeitgeber (time giver) for biological circadian rhythms. Recently, it was suggested that natural diurnal geomagnetic variation may also be utilized by organisms for the synchronization of these rhythms. In this study, life-history traits in Daphnia magna were evaluated after short-term and multigenerational exposure to 16 h day/8 h night cycle, 32 h day/16 h night cycle, diurnal geomagnetic variation of 24 h, simulated magnetic variation of 48 h, and combinations of these conditions. With short-term exposure, the lighting mode substantially influenced the brood to brood period and the lifespan in daphnids. The brood to brood period, brood size, and body length of crustaceans similarly depended on the lighting mode during the multigenerational exposure. At the same time, an interaction of lighting mode and magnetic variations affected to a lesser extent brood to brood period, brood size, and newborn's body length. The influence of simulated diurnal variation on life-history traits in daphnids appeared distinctly as effects of synchronization between periods of lighting mode and magnetic variations during the multigenerational exposure. Newborn's body length significantly depended on the lighting regime when the periods of both studied zeitgebers were unsynchronized, or on the interaction of light regime with magnetic variations when the periods were synchronized. These results confirm the hypothesis that diurnal geomagnetic variation is an additional zeitgeber for biological circadian rhythms. Possible mechanisms for these observed effects are discussed. Bioelectromagnetics. © 2020 Bioelectromagnetics Society.
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Affiliation(s)
- Viacheslav V Krylov
- I.D. Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
| | - Galina A Papchenkova
- I.D. Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
| | - Elena A Osipova
- I.D. Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
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16
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Zhang Y, Fu Y, Jiang S, Qiao H, Xiong Y, Fu H, Zhang W, Gong Y, Jin S, Wu Y. Comparative metabolomics analysis of ovarian developmental stages in Macrobrachium nipponense. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 34:100648. [PMID: 32078987 DOI: 10.1016/j.cbd.2019.100648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/21/2019] [Accepted: 11/21/2019] [Indexed: 01/12/2023]
Abstract
Rapid sexual maturity of female Macrobrachium nipponense is a severe problem for the aquaculture industry. To date, there have been only transcriptome studies investigating ovarian development, and studies using other tools, such as metabolomics are lacking. Metabolomics reveals changes in the level of metabolites in tissues in relation to current physiological characteristics, and can yield valuable insight into the growth and development of organisms. In this study, we systematically analyzed 15 samples from five different ovarian developmental stages in M. nipponense to learn more about how metabolites change over reproduction. Gas chromatography/time-of-flight mass spectroscopy revealed an array of different compounds and 83-162 pathways depending on the stage. Furthermore, 89 metabolites and 14 pathways were significantly different across stages. It is hypothesized that N-acetyl-N-formyl-5-methoxykynurenamine, ascorbate, fructose-2,6-bisphosphate, cortexolone and other metabolites that significantly differed by stage are regulated by hormones and are closely related to ovarian development. However, for other metabolites that changed with development, such as cytidine and xanthine, an association with ovarian development has yet to be revealed. Quantitative polymerase chain reaction was used to correlate gene changes to metabolites in the pathway for biosynthesis of plant secondary metabolites. We found that the TCA cycle rate may be the cause of female miniaturization during the reproductive period, and that the control of fatty acid content via aquaculture nutrition may be an exogenous tool for regulatory control of maturation. This study provides a systematic and comprehensive metabolomics analysis of ovarian development in M. nipponense and lays a foundation for addressing the problem of rapid sexual maturity.
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Affiliation(s)
- Yuning Zhang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, PR China
| | - Yin Fu
- Shanghai Institute of Nutrition and Health, CAS, Shanghai 200031, PR China
| | - Sufei Jiang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Hui Qiao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Yiwei Xiong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Hongtuo Fu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, PR China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China.
| | - Wenyi Zhang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Yongsheng Gong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Shubo Jin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Yan Wu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
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17
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She Q, Han Z, Liang S, Xu W, Li X, Zhao Y, Wei H, Dong J, Li Y. Impacts of circadian rhythm and melatonin on the specific activities of immune and antioxidant enzymes of the Chinese mitten crab (Eriocheir sinensis). FISH & SHELLFISH IMMUNOLOGY 2019; 89:345-353. [PMID: 30974217 DOI: 10.1016/j.fsi.2019.04.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/19/2019] [Accepted: 04/05/2019] [Indexed: 06/09/2023]
Abstract
Many physiological functions of crustaceans show a rhythmic change to adapt to daily environmental cycles. However, daily variation in the immune and antioxidant status and its possible correlation with circulatory melatonin levels during the daily cycle have not been reported in the Chinese mitten crab, Eriocheir sinensis. In this study, the specific activities of immune and antioxidant enzymes of E. sinensis during the 24 h cycle and its relationship with injected doses of melatonin were evaluated. The results showed that the immune parameters in the hemolymph, such as total hemolymph count, alkaline phosphatase, lysozyme, acid phosphatase, and phenol oxidase, exhibited bimodal patterns during the 24 h cycle, these parameters were synchronized with the activity of antioxidant enzymes such as malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase, and catalase. However, there was only one peak in the muscle (during 1200-1600 h) and gills (during 0400-0800 h). The survival rate reached approximately 80% in 5 days when melatonin concentrations were lower than 0.05 g/L, significantly decreasing as melatonin concentrations increased. Four hours after melatonin injection, MDA levels in the muscle and hemolymph were significantly lower than those in the control group. Eight hours after melatonin injection, SOD levels in the hemolymph were significantly higher than those in the control group. These findings highlight the importance of considering circadian regulation of innate immunity when comparing immune responses at fixed times.
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Affiliation(s)
- Qiuxin She
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Zhibin Han
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Shudong Liang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Weibin Xu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Xin Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Yingying Zhao
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Hua Wei
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Jing Dong
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Yingdong Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China.
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18
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Han Z, Li X, Xu W, She Q, Liang S, Li X, Li Y. Melatonin concentrations in Chinese mitten crabs (Eriocheir sinesis) are affected by artificial photoperiods. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1533725] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhibin Han
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Xin Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Weibin Xu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Qiuxin She
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Shudong Liang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Xiaodong Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Yingdong Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
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19
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Zhang C, Yang XZ, Xu MJ, Huang GY, Zhang Q, Cheng YX, He L, Ren HY. Melatonin Promotes Cheliped Regeneration, Digestive Enzyme Function, and Immunity Following Autotomy in the Chinese Mitten Crab, Eriocheir sinensis. Front Physiol 2018; 9:269. [PMID: 29623051 PMCID: PMC5875391 DOI: 10.3389/fphys.2018.00269] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/08/2018] [Indexed: 12/11/2022] Open
Abstract
In the pond culture of juvenile Eriocheir sinensis, a high limb-impairment rate seriously affects the culture success. Therefore, it is particularly important to artificially promote limb regeneration. This study evaluated the effects of melatonin on cheliped regeneration, digestive ability, and immunity, as well as its relationship with the eyestalk. It was found that the injection of melatonin significantly increased the limb regeneration rate compared with the saline group (P < 0.05). The qRT-PCR results of growth-related genes showed that the level of EcR-mRNA (ecdysteroid receptor) and Chi-mRNA (chitinase) expression was significantly increased following the melatonin injection, while the expression of MIH-mRNA (molt-inhibiting hormone) was significantly decreased (P < 0.05). Melatonin significantly increased lipase activity (P < 0.05). We observed that the survival rates of limb-impaired and unilateral eyestalk-ablated crabs were substantially improved following melatonin treatment, whereas the survival of the unilateral eyestalk-ablated crabs was significantly decreased compared with the control group (P < 0.05). Furthermore, the results of serum immune and antioxidant capacity revealed that melatonin significantly increased the total hemocyte counts (THC), hemocyanin content, total antioxidant capacity (T-AOC), acid phosphatase (ACP), and glutathione peroxidase activity (GSH-Px), whereas the immune-related parameters were significantly decreased in eyestalk-ablated crabs (P < 0.05). Therefore, these findings indicate that melatonin exerts a protective effect on organism injury, which could promote limb regeneration by up-regulating the expression of growth-related genes, improve digestive enzyme activity, and strengthen the immune response, particularly antioxidant capacity.
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Affiliation(s)
- Cong Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Xiao-Zhen Yang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Min-Jie Xu
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Gen-Yong Huang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Qian Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Yong-Xu Cheng
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Long He
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Hong-Yu Ren
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
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20
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Yang X, Xu M, Huang G, Zhang C, Pang Y, Yang Z, Cheng Y. The Hyperglycemic Effect of Melatonin in the Chinese Mitten Crab, Eriocheir sinensis. Front Physiol 2018; 9:270. [PMID: 29618988 PMCID: PMC5871893 DOI: 10.3389/fphys.2018.00270] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/08/2018] [Indexed: 11/13/2022] Open
Abstract
Melatonin has been identified in a variety of invertebrate species, but its function is not as well understood as in crustaceans. The effects of melatonin on hemolymph glucose levels and tissue carbohydrate metabolism in the Chinese mitten crab, Eriocheir sinensis, were fully investigated in this study. Moreover, whether the eyestalk (an important endocrine center in invertebrate species) involves in this process or not, also were clarified. Analysis revealed that eyestalk ablation, especially bilateral, caused a significant decrease in the hemolymph glucose level. Moreover, injection of melatonin induced hyperglycemia in a dose-dependent manner both in intact and ablated crabs. Based on the expression of CHH mRNA in the 10 different tissues, eyestalk, thoracic ganglion, intestinal tract and hemolymph were selected to estimate the effect of melatonin on the expression of CHH mRNA. Bilateral eyestalk ablation caused a significant increase in the expression of CHH mRNA in the thoracic ganglion, intestinal tract and hemolymph compared with the controls. In addition, injection of melatonin into intact or ablated crabs elevated the CHH mRNA level in the eyestalk, thoracic ganglion and intestinal tract tissues compared with controls. The hemolymph CHH mRNA after melatonin injection was elevated only in ablated crabs. Administration of melatonin resulted in a significant decrease in total carbohydrates and glycogen levels with an increase in phosphorylase activity levels in the hepatopancreas and muscle in intact and ablated crabs. Our findings demonstrated that melatonin can induce hyperglycemic effects in both intact and ablated crabs, suggesting that this effect is probably not mediated solely via eyestalk.
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Affiliation(s)
- Xiaozhen Yang
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Minjie Xu
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Genyong Huang
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Cong Zhang
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yangyang Pang
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Zhigang Yang
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yongxu Cheng
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
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21
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Mendoza-Vargas L, Báez-Saldaña A, Alvarado R, Fuentes-Pardo B, Flores-Soto E, Solís-Chagoyán H. Circadian rhythm in melatonin release as a mechanism to reinforce the temporal organization of the circadian system in crayfish. INVERTEBRATE NEUROSCIENCE 2017; 17:6. [PMID: 28540583 DOI: 10.1007/s10158-017-0199-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 05/12/2017] [Indexed: 01/25/2023]
Abstract
Melatonin (MEL) is a conserved molecule with respect to its synthesis pathway and functions. In crayfish, MEL content in eyestalks (Ey) increases at night under the photoperiod, and this indoleamine synchronizes the circadian rhythm of electroretinogram amplitude, which is expressed by retinas and controlled by the cerebroid ganglion (CG). The aim of this study was to determine whether MEL content in eyestalks and CG or circulating MEL in hemolymph (He) follows a circadian rhythm under a free-running condition; in addition, it was tested whether MEL might directly influence the spontaneous electrical activity of the CG. Crayfish were maintained under constant darkness and temperature, a condition suitable for studying the intrinsic properties of circadian systems. MEL was quantified in samples obtained from He, Ey, and CG by means of an enzyme-linked immunosorbent assay, and the effect of exogenous MEL on CG spontaneous activity was evaluated by electrophysiological recording. Variation of MEL content in He, Ey, and CG followed a circadian rhythm that peaked at the same circadian time (CT). In addition, a single dose of MEL injected into the crayfish at different CTs reduced the level of spontaneous electrical activity in the CG. Results suggest that the circadian increase in MEL content directly affects the CG, reducing its spontaneous electrical activity, and that MEL might act as a periodical signal to reinforce the organization of the circadian system in crayfish.
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Affiliation(s)
- Leonor Mendoza-Vargas
- Departamento El Hombre Y Su Ambiente, Universidad Autónoma Metropolitana Unidad Xochimilco, CP 04960, Mexico, Mexico
| | - Armida Báez-Saldaña
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Nueva Sede, Universidad Nacional Autónoma de México, CP 04510, Mexico, Mexico
| | - Ramón Alvarado
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510, Mexico, Mexico
| | - Beatriz Fuentes-Pardo
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510, Mexico, Mexico
| | - Edgar Flores-Soto
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510, Mexico, Mexico
| | - Héctor Solís-Chagoyán
- Laboratorio de Neurofarmacología, Instituto Nacional de Psiquiatría Ramón de La Fuente Muñiz, CP 14370, Mexico, D.F, Mexico.
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22
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Geihs MA, Vargas MA, Maciel FE, Vakkuri O, Meyer-Rochow VB, Allodi S, Nery LEM. Effects of hypoxia and reoxygenation on the antioxidant defense system of the locomotor muscle of the crab Neohelice granulata (Decapoda, Varunidae). J Comp Physiol B 2016; 186:569-79. [PMID: 26995743 DOI: 10.1007/s00360-016-0976-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 02/15/2016] [Accepted: 02/19/2016] [Indexed: 12/15/2022]
Abstract
Crustaceans often occur in areas with variations in oxygen and experience situations known as hypoxia and reoxygenation. Consequences of such situations are increased levels of reactive oxygen species. To avoid oxidative damage intertidal crabs appear to possess an efficient antioxidant defense system (ADS). However, to date, studies have not addressed the strategies that are adopted by the crabs when exposed to hypoxia/reoxygenation cycles. Towards this end we evaluated the ADS and the role of melatonin as an antioxidant in the locomotor muscle of the crab Neohelice granulata under conditions of severe hypoxia and reoxygenation. Total antioxidant capacity against peroxyl radicals and the enzymes superoxide dismutase, catalase, glutathione peroxidase (GPx), and glutathione-S-transferase as well as the key enzyme of glutathione synthesis, glutamate cysteine ligase (GCL), were evaluated. Furthermore, GSH, GSH/GSSG index as well as hemolymph and cellular melatonin levels were evaluated. During hypoxia, increased GPx and GCL activity and decreased GSH and mitochondrial melatonin levels were observed, but during reoxygenation catalase activity increased and cytosolic melatonin levels decreased. It appears that the ADS in the locomotor muscle of N. granulata exert a modulating effect when being confronted with hypoxia and reoxygenation to avoid oxidative stress. During hypoxia, the ADS appear to target GPX activity as well as GSH and mitochondrial melatonin. During reoxygenation, however, evidence suggests that catalase and cytosolic melatonin are involved in the recovery of the locomotor muscle from oxidative damage and the suppression of further damage.
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Affiliation(s)
- Márcio Alberto Geihs
- Programa de Pós-Graduação em Ciências Fisiológicas, Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, FURG, Av. Itália, Km 8, Rio Grande, RS, CEP 96203-900, Brazil
| | - Marcelo Alves Vargas
- Programa de Pós-Graduação em Ciências Fisiológicas, Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, FURG, Av. Itália, Km 8, Rio Grande, RS, CEP 96203-900, Brazil
| | - Fábio Everton Maciel
- Programa de Pós-Graduação em Ciências Fisiológicas, Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, FURG, Av. Itália, Km 8, Rio Grande, RS, CEP 96203-900, Brazil
| | - Olli Vakkuri
- Department of Physiology, Oulu University, P.O. Box 3000, 50014, Oulu, Finland
| | - Victor Benno Meyer-Rochow
- Department of Biology, Oulu University, P.O. Box 3000, 50014, Oulu, Finland.,Research Institute of Luminescent Organisms, Tokyo, Hachijojima, 100-1623, Japan
| | - Silvana Allodi
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Av. Carlos Chagas Filho 373 CCS, Bloco G2-001, Ilha do Fundão, Rio de Janeiro, RJ, 21449-902, Brazil
| | - Luiz Eduardo Maia Nery
- Programa de Pós-Graduação em Ciências Fisiológicas, Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, FURG, Av. Itália, Km 8, Rio Grande, RS, CEP 96203-900, Brazil.
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Jones TM, Durrant J, Michaelides EB, Green MP. Melatonin: a possible link between the presence of artificial light at night and reductions in biological fitness. Philos Trans R Soc Lond B Biol Sci 2016; 370:rstb.2014.0122. [PMID: 25780235 DOI: 10.1098/rstb.2014.0122] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The mechanisms underpinning the ecological impacts of the presence of artificial night lighting remain elusive. One suspected underlying cause is that the presence of light at night (LAN) supresses nocturnal production of melatonin, a key driver of biological rhythm and a potent antioxidant with a proposed role in immune function. Here, we briefly review the evidence for melatonin as the link between LAN and changes in behaviour and physiology. We then present preliminary data supporting the potential for melatonin to act as a recovery agent mitigating the negative effects of LAN in an invertebrate. Adult crickets (Teleogryllus commodus), exposed to constant illumination, were provided with dietary melatonin (concentrations: 0, 10 or 100 µg ml(-1)) in their drinking water. We then compared survival, lifetime fecundity and, over a 4-week period, immune function (haemocyte concentration, lysozyme-like and phenoloxidase (PO) activity). Melatonin supplementation was able only partially to mitigate the detrimental effects of LAN: it did not improve survival or fecundity or PO activity, but it had a largely dose-dependent positive effect on haemocyte concentration and lysozyme-like activity. We discuss the implications of these relationships, as well as the usefulness of invertebrates as model species for future studies that explore the effects of LAN.
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Affiliation(s)
- Therésa M Jones
- Department of Zoology, The University of Melbourne, 3010 VIC, Australia
| | - Joanna Durrant
- Department of Zoology, The University of Melbourne, 3010 VIC, Australia
| | | | - Mark P Green
- Department of Zoology, The University of Melbourne, 3010 VIC, Australia
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24
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Maciel FE, Geihs MA, Cruz BP, Vargas MA, Allodi S, Marins LF, Nery LEM. Melatonin as a signaling molecule for metabolism regulation in response to hypoxia in the crab Neohelice granulata. Int J Mol Sci 2014; 15:22405-20. [PMID: 25486055 PMCID: PMC4284716 DOI: 10.3390/ijms151222405] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/01/2014] [Accepted: 11/04/2014] [Indexed: 11/27/2022] Open
Abstract
Melatonin has been identified in a variety of crustacean species, but its function is not as well understood as in vertebrates. The present study investigates whether melatonin has an effect on crustacean hyperglycemic hormone (CHH) gene expression, oxygen consumption (VO2) and circulating glucose and lactate levels, in response to different dissolved-oxygen concentrations, in the crab Neohelice granulata, as well as whether these possible effects are eyestalk- or receptor-dependent. Melatonin decreased CHH expression in crabs exposed for 45 min to 6 (2, 200 or 20,000 pmol·crab−1) or 2 mgO2·L−1 (200 pmol·crab−1). Since luzindole (200 nmol·crab−1) did not significantly (p > 0.05) alter the melatonin effect, its action does not seem to be mediated by vertebrate-typical MT1 and MT2 receptors. Melatonin (200 pmol·crab−1) increased the levels of glucose and lactate in crabs exposed to 6 mgO2·L−1, and luzindole (200 nmol·crab−1) decreased this effect, indicating that melatonin receptors are involved in hyperglycemia and lactemia. Melatonin showed no effect on VO2. Interestingly, in vitro incubation of eyestalk ganglia for 45 min at 0.7 mgO2·L−1 significantly (p < 0.05) increased melatonin production in this organ. In addition, injections of melatonin significantly increased the levels of circulating melatonin in crabs exposed for 45 min to 6 (200 or 20,000 pmol·crab−1), 2 (200 and 20,000 pmol·crab−1) and 0.7 (200 or 20,000 pmol·crab−1) mgO2·L−1. Therefore, melatonin seems to have an effect on the metabolism of N. granulata. This molecule inhibited the gene expression of CHH and caused an eyestalk- and receptor-dependent hyperglycemia, which suggests that melatonin may have a signaling role in metabolic regulation in this crab.
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Affiliation(s)
- Fábio Everton Maciel
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
| | - Márcio Alberto Geihs
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
| | - Bruno Pinto Cruz
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
| | - Marcelo Alves Vargas
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
| | - Silvana Allodi
- Programa de Pós-Graduação em Ciências Morfológicas, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21949-902 Rio de Janeiro, Brazil.
| | - Luis Fernando Marins
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
| | - Luiz Eduardo Maia Nery
- Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), 96201-300 Rio Grande, Brazil.
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25
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Schwarzenberger A, Christjani M, Wacker A. Longevity of Daphnia and the attenuation of stress responses by melatonin. BMC PHYSIOLOGY 2014; 14:8. [PMID: 25373613 PMCID: PMC4226899 DOI: 10.1186/s12899-014-0008-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 10/24/2014] [Indexed: 11/17/2022]
Abstract
Background The widespread occurrence of melatonin in prokaryotes as well as eukaryotes indicates that this indoleamine is considerably old. This high evolutionary age has led to the development of diverse functions of melatonin in different organisms, such as the detoxification of reactive oxygen species and anti-stress effects. In insects, i.e. Drosophila, the addition of melatonin has also been shown to increase the life span of this arthropod, probably by reducing age-related increasing oxidative stress. Although the presence of melatonin was recently found to exist in the ecological and toxicological model organism Daphnia, its function in this cladoceran has thus far not been addressed. Therefore, we challenged Daphnia with three different stressors in order to investigate potential stress-response attenuating effects of melatonin. i) Female and male daphnids were exposed to melatonin in a longevity experiment, ii) Daphnia were confronted with stress signals from the invertebrate predator Chaoborus sp., and iii) Daphnia were grown in high densities, i.e. under crowding-stress conditions. Results In our experiments we were able to show that longevity of daphnids was not affected by melatonin. Therefore, age-related increasing oxidative stress was probably not compensated by added melatonin. However, melatonin significantly attenuated Daphnia’s response to acute predator stress, i.e. the formation of neckteeth which decrease the ability of the gape-limited predator Chaoborus sp. to handle their prey. In addition, melatonin decreased the extent of crowding-related production of resting eggs of Daphnia. Conclusions Our results confirm the effect of melatonin on inhibition of stress-signal responses of Daphnia. Until now, only a single study demonstrated melatonin effects on behavioral responses due to vertebrate kairomones, whereas we clearly show a more general effect of melatonin: i) on morphological predator defense induced by an invertebrate kairomone and ii) on life history characteristics transmitted by chemical cues from conspecifics. Therefore, we could generally confirm that melatonin plays a role in the attenuation of responses to different stressors in Daphnia.
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Affiliation(s)
- Anke Schwarzenberger
- Institute for Biochemistry and Biology, Ecology and Ecosystem Modelling, University of Potsdam, Am Neuen Palais 10, 14469, Potsdam, Germany.
| | - Mark Christjani
- Cologne Biocenter, Aquatic Chemical Ecology, University of Cologne, Zülpicherstraße 47b, 50674, Cologne, Germany.
| | - Alexander Wacker
- Institute for Biochemistry and Biology, Ecology and Ecosystem Modelling, University of Potsdam, Am Neuen Palais 10, 14469, Potsdam, Germany.
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