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Kırcı D, Demirci F, Demirci B. Microbial Transformation of Hesperidin and Biological Evaluation. ACS OMEGA 2023; 8:42610-42621. [PMID: 38024700 PMCID: PMC10652256 DOI: 10.1021/acsomega.3c05334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023]
Abstract
The main aim of the study was the biotransformation evaluation of hesperidin for functionalization by 25 different nonhuman pathogenic microorganisms. As a result, four metabolites were identified and characterized. The structure of pinocembrin and naringenin from the microbial transformation of hesperidin was determined initially with LC/MS-MS. The metabolites eriodictyol and hesperetin were isolated, and their molecular structure was determined by NMR and MS. Pinocembrin, eriodictyol, and naringenin were characterized as new hesperidin microbial transformation metabolites, to the best of our knowledge. In order to evaluate the bioactivity, in vitro 5-lipoxygenase (5-LOX) enzyme inhibition, antioxidant, antimicrobial, and acute toxicity evaluations using the brine shrimp assay of hesperidin and its metabolites were performed comparatively. According to antioxidant and anti-inflammatory activity results, hesperetin metabolite was more active than naringenin and hesperidin. The antimicrobial activity of hesperetin and naringenin against the human pathogenic Staphylococcus aureus strain was relatively higher when compared with the substrate hesperidin. In line with this result, biofilm activity of hesperetin and naringenin against S. aureus with combination studies using biofilm formation methods was carried out. The checkerboard combination method was utilized for biofilm layering, also for the first time in the present study. As an initial result, it was observed that hesperidin and naringenin exerted a synergistic activity with a fractional inhibitory concentration index (FICI) value of 1.063. Considering the bioactivity of hesperidin, hesperetin, and naringenin used as substrates are relatively nontoxic. The microbial and enzymatic biotransformation of natural products such as hesperetin and its new bioactive metabolites still have pharmacological potential, which needs further experimentation at the molecular level..
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Affiliation(s)
- Damla Kırcı
- Department
of Pharmacognosy, Faculty of Pharmacy, Selçuk
University, Konya 42150, Türkiye
| | - Fatih Demirci
- Department
of Pharmacognosy, Faculty of Pharmacy, Anadolu
University, Eskişehir 26470, Türkiye
- Faculty
of Pharmacy, Eastern Mediterranean University, N. Cyprus, Via Mersin, Famagusta 99628, Türkiye
| | - Betül Demirci
- Department
of Pharmacognosy, Faculty of Pharmacy, Anadolu
University, Eskişehir 26470, Türkiye
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Abd-Elmawla MA, Essam RM, Ahmed KA, Abdelmonem M. Implication of Wnt/GSK-3β/β-Catenin Signaling in the Pathogenesis of Mood Disturbances Associated with Hyperthyroidism in Rats: Potential Therapeutic Effect of Naringin. ACS Chem Neurosci 2023. [PMID: 37196197 DOI: 10.1021/acschemneuro.3c00013] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023] Open
Abstract
Patients with hyperthyroidism are commonly diagnosed with mood disorders. Naringin, (4',5,7-trihydrocyflavanone-7-O-rhamnoglucoside), a natural bioflavonoid, has many neurobehavioral activities including anxiolytic and antidepressant properties. The role of Wingless (Wnt) signaling in psychiatric disorders is considered substantial but debatable. Recently, regulation of Wnt signaling by naringin has been reported in different disorders. Therefore, the present study aimed to investigate the possible role of Wnt/GSK-3β/β-catenin signaling in hyperthyroidism-induced mood disturbances and explore the therapeutic effects of naringin. Hyperthyroidism was induced in rats by intraperitoneal injection of 0.3 mg/kg levothyroxine for 2 weeks. Naringin was orally administered to rats with hyperthyroidism at a dose of 50 or 100 mg/kg for 2 weeks. Hyperthyroidism induced mood alterations as revealed by behavioral tests and histopathological changes including marked necrosis and vacuolation of neurons in the hippocampus and cerebellum. Intriguingly, hyperthyroidism activated Wnt/p-GSK-3β/β-catenin/DICER1/miR-124 signaling pathway in the hippocampus along with an elevation in serotonin, dopamine, and noradrenaline contents and a reduction in brain-derived neurotrophic factor (BDNF) content. Additionally, hyperthyroidism induced upregulation of cyclin D-1 expression, malondialdehyde (MDA) elevation, and glutathione (GSH) reduction. Naringin treatment alleviated behavioral and histopathological alterations and reversed hyperthyroidism-induced biochemical changes. In conclusion, this study revealed, for the first time, that hyperthyroidism could affect mental status by stimulating Wnt/p-GSK-3β/β-catenin signaling in the hippocampus. The observed beneficial effects of naringin could be attributed to increasing hippocampal BDNF, controlling the expression of Wnt/p-GSK-3β/β-catenin signaling as well as its antioxidant properties.
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Affiliation(s)
- Mai A Abd-Elmawla
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
| | - Reham M Essam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
- Department of Biology, School of Pharmacy, Newgiza University, First 6th of October, Giza 3296121, Egypt
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Cairo, Egypt
| | - Maha Abdelmonem
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
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The food preservative sodium propionate induces hyperglycaemic state and neurological disorder in zebrafish. Neurotoxicol Teratol 2022; 93:107123. [PMID: 36150581 DOI: 10.1016/j.ntt.2022.107123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/21/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Propionate is an effective mould inhibitor widely used as a food preservative. In this study, we used zebrafish to explore the adverse effects of long-term exposure to low concentrations of sodium propionate and the underlying molecular mechanisms (from larvae to adult). When exposed for 3 months, we found that blood glucose, total cholesterol, and triglyceride levels increased, and zebrafish developed a hyperglycaemic state. New tank test results showed depression in zebrafish reduced 5-hydroxytryptamine levels in the brain and damaged the dopamine system. At the same time, the results of the color preference test showed that zebrafish had cognitive impairments. In addition, Hypothalamic-Pituitary-Adrenal axis analysis revealed abnormal gene expression, increased cortisol levels, and reduced glucocorticoid receptor mRNA levels, which were consistent with depressive behavior. We also observed abnormal transcription of inflammatory and apoptotic factors. Overall, we found that chronic exposure to sodium propionate induces depressive symptoms. This may be related to the activation of the HPA axis by the hyperglycaemic state, thereby inducing inflammation and disrupting the dopaminergic system. In summary, this study provides theoretical and technical support for the overlap of the emotional pathogenesis associated with diabetes.
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Xu YX, Zhang SH, Zhang SZ, Yang MY, Zhao X, Sun MZ, Feng XZ. Exposure of zebrafish embryos to sodium propionate disrupts circadian behavior and glucose metabolism-related development. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113791. [PMID: 35753272 DOI: 10.1016/j.ecoenv.2022.113791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Sodium propionate is widely used as a preservative in food. The widespread use of preservatives is known to cause both environmental and public health problems. This study aimed to investigate the effects of sodium propionate on the developmental behavior and glucose metabolism of zebrafish. Our results showed that sodium propionate had no significant effect on the embryonic morphological development of zebrafish embryos but changed the head eye area. Then we found sodium propionate disturbed the thigmotaxis behavior, impaired neural development. Moreover, changes in clock gene expression disrupted the circadian rhythm of zebrafish. Circadian genes regulated insulin sensitivity and secretion in various tissues. Then our results showed that the disorder of circadian rhythm in zebrafish affected glucose metabolism and insulin resistance, which damaged the development of retina. Therefore, the safety of propionate should be further evaluated.
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Affiliation(s)
- Yi-Xin Xu
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Shu-Hui Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Shao-Zhi Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Meng-Ying Yang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Xin Zhao
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin 300071, China
| | - Ming-Zhu Sun
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin 300071, China.
| | - Xi-Zeng Feng
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China.
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Cardiotoxicity of Zebrafish Induced by 6-Benzylaminopurine Exposure and Its Mechanism. Int J Mol Sci 2022; 23:ijms23158438. [PMID: 35955574 PMCID: PMC9369308 DOI: 10.3390/ijms23158438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 02/04/2023] Open
Abstract
6-BA is a common plant growth regulator, but its safety has not been conclusive. The heart is one of the most important organs of living organisms, and the cardiogenesis process of zebrafish is similar to that of humans. Therefore, based on wild-type and transgenic zebrafish, we explored the development of zebrafish heart under 6-BA exposure and its mechanism. We found that 6-BA affected larval cardiogenesis, inducing defective expression of key genes for cardiac development (myl7, vmhc, and myh6) and AVC differentiation (bmp4, tbx2b, and notch1b), ultimately leading to weakened cardiac function (heart rate, diastolic speed, systolic speed). Acridine orange staining showed that the degree of apoptosis in zebrafish hearts was significantly increased under 6-BA, and the expression of cell-cycle-related genes was also changed. In addition, HPA axis assays revealed abnormally expressed mRNA levels of genes and significantly increased cortisol contents, which was also consistent with the observed anxiety behavior in zebrafish at 3 dpf. Transcriptional abnormalities of pro- and anti-inflammatory factors in immune signaling pathways were also detected in qPCR experiments. Collectively, we found that 6-BA induced cardiotoxicity in zebrafish, which may be related to altered HPA axis activity and the onset of inflammatory responses under 6-BA treatment.
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Martins Fernandes Pereira K, Calheiros de Carvalho A, André Moura Veiga T, Melgoza A, Bonne Hernández R, dos Santos Grecco S, Uchiyama Nakamura M, Guo S. The psychoactive effects of Bryophyllum pinnatum (Lam.) Oken leaves in young zebrafish. PLoS One 2022; 17:e0264987. [PMID: 35263358 PMCID: PMC8906576 DOI: 10.1371/journal.pone.0264987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 02/22/2022] [Indexed: 11/18/2022] Open
Abstract
Bryophyllum pinnatum (Lam.) Oken (BP) is a plant that is used worldwide to treat inflammation, infections, anxiety, restlessness, and sleep disorders. While it is known that BP leaves are rich in flavonoids, the extent of the beneficial and toxic effects of its crude extracts remains unclear. Although some neurobehavioral studies using leaf extracts have been conducted, none has examined the effects of water-extracted leaf samples. The zebrafish is a powerful animal model used to gain insights into the efficacy and toxicity profiles of this plant due to its high fecundity, external development, and ease of performing behavioral assays. In this study, we performed behavioral testing after acute exposure to different concentrations of aqueous extract from leaves of B. pinnatum (LABP) on larval zebrafish, investigating light/dark preference, thigmotaxis, and locomotor activity parameters under both normal and stressed conditions. LABP demonstrated dose-and time-dependent biphasic effects on larval behavior. Acute exposure (25 min) to 500 mg/L LABP resulted in decreased locomotor activity. Exposure to 300 mg/L LABP during the sleep cycle decreased dark avoidance and thigmotaxis while increasing swimming velocity. After sleep deprivation, the group treated with 100 mg/L LABP showed decreased dark avoidance and increased velocity. After a heating stressor, the 30 mg/L and 300 mg/L LABP-treated groups showed decreased dark avoidance. These results suggest both anxiolytic and psychoactive effects of LABP in a dose-dependent manner in a larval zebrafish model. These findings provide a better understanding of the mechanisms underlying relevant behavioral effects, consequently supporting the safe and effective use of LABP for the treatment of mood disorders.
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Affiliation(s)
- Kassia Martins Fernandes Pereira
- Department of Obstetrics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Department of Bioengineering and Therapeutic Sciences, Programs in Biological Sciences and Human Genetics, University of California, San Francisco, San Francisco, California, United States of America
- * E-mail:
| | | | | | - Adam Melgoza
- Department of Bioengineering and Therapeutic Sciences, Programs in Biological Sciences and Human Genetics, University of California, San Francisco, San Francisco, California, United States of America
- Pharmaceutical Sciences and Pharmacogenomics Graduate Program, University of California, San Francisco, San Francisco, California, United States of America
| | - Raúl Bonne Hernández
- Laboratory of Bioinorganic and Environmental Toxicology–LABITA, Department of Chemistry, Universidade Federal de São Paulo. Diadema. SP. Brazil
| | | | | | - Su Guo
- Department of Bioengineering and Therapeutic Sciences, Programs in Biological Sciences and Human Genetics, University of California, San Francisco, San Francisco, California, United States of America
- Pharmaceutical Sciences and Pharmacogenomics Graduate Program, University of California, San Francisco, San Francisco, California, United States of America
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Ali SA, Gooda SM, Aboul Naser AF, Younis EA, Hamed MA, Ahmed YR, Farghaly AA, Khalil WKB, Rizk MZ. Chromosomal aberrations, DNA damage and biochemical disturbances induced by silver nanoparticles in mice: Role of particle size and natural compounds treatment. Biomarkers 2022; 27:349-360. [PMID: 35254184 DOI: 10.1080/1354750x.2022.2046856] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
CONTEXT Nanotechnology is widely used nowadays in several fields of industry, engineering, and medicine, the biological action mechanisms of AgNPs, which mainly involve the release of silver ions (Ag+), generation of reactive oxygen species (ROS). OBJECTIVE The potential toxicity AgNPs of damages to hepatic cells, hesperidin, and naringin role for their protective effect against the increase of ROS due to AgNPs toxicity. They can be restored, most cellular biochemical parameters, genotoxicity, mutagenicity, and histopathological analysis. MATERIALS AND METHODS Toxicity was induced by an oral dose of Ag NPs of (20-100 nm) for one month, after that treated with hesperidin, naringin (100 mg/kg) for three weeks, malondialdehyde (MDA) levels, nitric oxide (NO), glutathione (GSH) and catalase were estimated. Also, aminotransferases (AST and ALT), alkaline phosphatase (ALP), γ-glutamyltransferase (GGT), albumin, and total bilirubin were determined, following Chromosomal aberrations, DNA breaks and histological analyses. RESULTS hesperidin, and naringin treatment, recorded amelioration in most biochemical, genetic and spermatogenesis disturbances Also, histological Investigations were improved. CONCLUSION Their biological safety problems such as potential toxicity on cells, tissue, and organs should be paid enough attention, hesperidin and naringin amelioration fundamental alterations, as hepatic architectural and DNA damage, related to its role as antioxidant and anti-inflammatory agent.
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Affiliation(s)
- Sanaa A Ali
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Samar M Gooda
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Asmaa F Aboul Naser
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Eman A Younis
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Manal A Hamed
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Yomna R Ahmed
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Ayman A Farghaly
- Department of Cell Biology, Genetic Engineering and Biotechnology, National Research Centre (NRC), El-Buhouth St., Dokki, Giza, Egypt
| | - Wagdy K B Khalil
- Genetics and Cytology Department, Genetic Engineering and Biotechnology Research Division National Research Centre, El-Buhouth St., Dokki, Giza, Egypt on National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
| | - Maha Z Rizk
- Departmen of Therapeutic Chemistry, National Research Centre, El-Buhouth St., Dokki, Giza, Egypt
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Zhang S, Xu Y, Zhang S, Zhao C, Feng D, Feng X. Fluorene-9-bisphenol exposure decreases locomotor activity and induces lipid-metabolism disorders by impairing fatty acid oxidation in zebrafish. Life Sci 2022; 294:120379. [PMID: 35134438 DOI: 10.1016/j.lfs.2022.120379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/19/2022] [Accepted: 02/02/2022] [Indexed: 02/07/2023]
Abstract
AIMS Fluorene-9-bisphenol (BHPF), as a substitute for bisphenol A, is used in many industries in daily life. Many studies have clarified its effects as an endocrine disruptor on organisms, but its effect on lipid metabolism of zebrafish larvae is not clear. Patients with non-alcoholic fatty liver disease (NAFLD) are more susceptible to external pollutants. It is not clear how BHPF perturbs lipid metabolism or promotes NAFLD progression. MAIN METHODS We explored the biological effects of BHPF on locomotor activity, inflammatory response, endoplasmic reticulum (ER) stress and lipid metabolism in zebrafish, especially in the mechanism of lipid homeostasis disorder. In addition, the role of BHPF in the progression of non-alcoholic fatty liver disease (NAFLD) was further explored. KEY FINDINGS We found that high concentration (100 nmol/L) BHPF caused retarded growth, mild lipid accumulation and reduced the locomotive activity of zebrafish larvae, accompanied by a decrease in endogenous cortisol level. At the same time, it caused the full activation of inflammation and ER stress. Rescue experiments by 25(OH)D3 demonstrated that high concentration of BHPF caused defects in 1,25(OH)2D3 metabolic pathway through downregulation of cyp2r1, which further damaged pgc1a-mediated fatty acid oxidation and mitochondrial function, resulting in lipid accumulation. In summary, exposure to BHPF could damage lipid homeostasis and worsen the diet-induced NAFLD. SIGNIFICANCE Our findings provide new insights into the role of BHPF in development of overweight and obesity and also improve understanding of its toxicological mechanism. Our results play a warning role in the administration of environmental pollutants.
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Affiliation(s)
- Shuhui Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education. College of Life Science, Nankai University, Tianjin 300071, China
| | - Yixin Xu
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education. College of Life Science, Nankai University, Tianjin 300071, China
| | - Shaozhi Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education. College of Life Science, Nankai University, Tianjin 300071, China
| | - Chengtian Zhao
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education. College of Life Science, Nankai University, Tianjin 300071, China
| | - Daofu Feng
- Department of General Surgery, Tianjin Medical University General Hospital, No.154 Anshan Road, Tianjin 300052, China.
| | - Xizeng Feng
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education. College of Life Science, Nankai University, Tianjin 300071, China.
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Environmental level of the antidepressant venlafaxine induces behavioral disorders through cortisol in zebrafish larvae (Danio rerio). Neurotoxicol Teratol 2020; 83:106942. [PMID: 33220437 DOI: 10.1016/j.ntt.2020.106942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/10/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023]
Abstract
Psychoactive drugs discharged into the environment have different effects on the behavior of vertebrates. The objective of this study was to evaluate the effect of venlafaxine on the behavior of zebrafish, and whether melatonin could reverse the induction of venlafaxine. In this study, a series of venlafaxine concentrations (1 μg/L, 10 μg/L, 100 μg/L) was used to treat zebrafish embryos from 2 hours post-fertilization (hpf) to 5dpf. We found that venlafaxine (1 μg/L) can stimulate the growth of the head area, eye area, and body length of zebrafish. The light-dark test showed that venlafaxine (1 μg/L) could increase the activity of zebrafish larvae. What's more, venlafaxine (1 μg/L) upregulated the expression of steroid regulatory factors including steroidogenic acute regulatory protein (star), cytochrome P450 family member 11A1 (cyp11a1) and 11 β hydroxylase (cyp11b1) by cAMP-pCREB pathway, affecting the function of the steroidogenic cells, which might be involved in the increased cortisol levels in zebrafish larvae. Whereas, melatonin (230 μg/L) restored the altered locomotion behavior induced by venlafaxine and recovered the altered gene expression. Our results demonstrate that venlafaxine at levels detected in the aquatic environment impacts behavior and may compromise the adaptive responses to the environment in zebrafish larvae.
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Xu C, Ge Z, Li C, Wan F, Xiao X. Inhibition of harmful algae Phaeocystis globosa and Prorocentrum donghaiense by extracts of coastal invasive plant Spartina alterniflora. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 696:133930. [PMID: 31470329 DOI: 10.1016/j.scitotenv.2019.133930] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
Harmful algal blooms (HABs) and the invasion of smooth cordgrass (Spartina alterniflora) have become important environmental problems in intertidal zones of China, which caused serious damage on the coastal ecological systems. By using S. alterniflora as algaecide, this helps to utilize this invasive plant, in addition, is expected to help to control the expansion of S. alterniflora. The potential of S. alterniflora in HABs mitigation was investigated on controlling Phaeocystis globosa (haptophyceae) and Prorocentrum donghaiense (dinophyceae). The growth of both HABs species was significantly inhibited at high concentrations, and P. globosa was more sensitive than P. donghaiense. Furthermore, the extracts of S. alterniflora reduced the effective quantum yield, photosynthetic efficiency, and relative maximal electron transport rate of both algal species at high concentrations, which implies a disruption on their photosynthetic system. Flavonoids, which were previously known as antialgal chemicals, were found to be abundant in the extracts of S. alterniflora by UPLC-MS detection. Our results revealed that the potential of S. alterniflora as a novel antialgal agent for controlling HABs, simultaneously, resource utilization possibility for the invasive plant S. alterniflora.
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Affiliation(s)
- Caicai Xu
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Zhiwei Ge
- Zhejiang University, Analysis Center of Agrobiology and Environmental Sciences, Hangzhou 310058, China
| | - Chao Li
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Fanghao Wan
- Chinese Academy of Agricultural Sciences, Institute of Plant Protection, Beijing 100193, China
| | - Xi Xiao
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China; Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, MNR, Hangzhou, 310012, China.
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