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Zhang Y, Zhou Y, Tang Q, Hu F, Feng L, Shen J, Huang B. The protective effects of selenium-enriched spirulina on the reproductive system of male zebrafish (Danio rerio) exposed to beta-cypermethrin. Food Funct 2018; 9:5791-5804. [DOI: 10.1039/c8fo01527a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Beta-cypermethrin (beta-CYP), which is widely used for the control of indoor and field pests, is a highly lipophilic insecticide with environmental estrogenic effects.
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Affiliation(s)
- Yi Zhang
- School of Life Science
- Anhui University
- Hefei 230601
- PR China
| | - Yuhang Zhou
- School of Life Science
- Anhui University
- Hefei 230601
- PR China
| | - Qingyang Tang
- School of Life Science
- Anhui University
- Hefei 230601
- PR China
| | - Feng Hu
- School of Life Science
- Anhui University
- Hefei 230601
- PR China
| | - Lixue Feng
- Bozhou Decoction Pieces
- Factory of Tribute Medicine
- Bozhou 236800
- PR China
| | - Jinglian Shen
- Bozhou Decoction Pieces
- Factory of Tribute Medicine
- Bozhou 236800
- PR China
| | - Bei Huang
- School of Life Science
- Anhui University
- Hefei 230601
- PR China
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2
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Brander SM, Jeffries KM, Cole BJ, DeCourten BM, White JW, Hasenbein S, Fangue NA, Connon RE. Transcriptomic changes underlie altered egg protein production and reduced fecundity in an estuarine model fish exposed to bifenthrin. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 174:247-60. [PMID: 26975043 DOI: 10.1016/j.aquatox.2016.02.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 05/15/2023]
Abstract
Pyrethroid pesticides are a class of insecticides found to have endocrine disrupting properties in vertebrates such as fishes and in human cell lines. Endocrine disrupting chemicals (EDCs) are environmental contaminants that mimic or alter the process of hormone signaling. In particular, EDCs that alter estrogen and androgen signaling pathways are of major concern for fishes because these EDCs may alter reproductive physiology, behavior, and ultimately sex ratio. Bifenthrin, a pyrethroid with escalating usage, is confirmed to disrupt estrogen signaling in several species of fish, including Menidia beryllina (inland silverside), an Atherinid recently established as a euryhaline model. Our main objective was to broadly assess the molecular and physiological responses of M. beryllina to the ng/L concentrations of bifenthrin typically found in the environment, with a focus on endocrine-related effects, and to discern links between different tiers of the biological hierarchy. As such, we evaluated the response of juvenile Menidia to bifenthrin using a Menidia-specific microarray, quantitative real-time polymerase chain reaction (qPCR) on specific endocrine-related genes of interest, and a Menidia-specific ELISA to the egg-coat protein choriogenin, to evaluate a multitude of molecular-level responses that would inform mechanisms of toxicity and any underlying causes of change at higher biological levels of organization. The sublethal nominal concentrations tested (0.5, 5 and 50ng/L) were chosen to represent the range of concentrations observed in the environment and to provide coverage of a variety of potential responses. We then employed a 21-day reproductive assay to evaluate reproductive responses to bifenthrin (at 0.5ng/L) in a separate group of adult M. beryllina. The microarray analysis indicated that bifenthrin influences a diverse suite of molecular pathways, from baseline metabolic processes to carcinogenesis. A more targeted examination of gene expression via qPCR demonstrated that bifenthrin downregulates a number of estrogen-related transcripts, particularly at the lowest exposure level. Choriogenin protein also decreased with exposure to increasing concentrations of bifenthrin, and adult M. beryllina exposed to 0.5ng/L had significantly reduced reproductive output (fertilized eggs per female). This reduction in fecundity is consistent with observed changes in endocrine-related gene expression and choriogenin production. Taken together, our results demonstrate that environmental concentrations of bifenthrin have potential to interfere with metabolic processes, endocrine signaling, and to decrease reproductive output.
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Affiliation(s)
- Susanne M Brander
- Biology & Marine Biology, University of North Carolina, Wilmington, 601 South College Road, Wilmington, NC 28403, United States.
| | - Ken M Jeffries
- Anatomy, Physiology & Cell Biology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA 95616, United States
| | - Bryan J Cole
- Anatomy, Physiology & Cell Biology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA 95616, United States
| | - Bethany M DeCourten
- Biology & Marine Biology, University of North Carolina, Wilmington, 601 South College Road, Wilmington, NC 28403, United States
| | - J Wilson White
- Biology & Marine Biology, University of North Carolina, Wilmington, 601 South College Road, Wilmington, NC 28403, United States
| | - Simone Hasenbein
- Anatomy, Physiology & Cell Biology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA 95616, United States
| | - Nann A Fangue
- Wildlife, Fish & Conservation Biology, University of California, Davis, One Shields Avenue, Davis, CA 95616, United States
| | - Richard E Connon
- Anatomy, Physiology & Cell Biology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA 95616, United States
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Shaikh H, Andaç M, Memon N, Bhanger MI, Nizamani SM, Denizli A. Synthesis and characterization of molecularly imprinted polymer embedded composite cryogel discs: application for the selective extraction of cypermethrins from aqueous samples prior to GC-MS analysis. RSC Adv 2015. [DOI: 10.1039/c4ra13318h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Molecularly imprinted particles embedded composite cryogel discs specific for α-cypermethrin and β-cypermethrin were prepared.
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Affiliation(s)
- Huma Shaikh
- National Center of Excellence in Analytical Chemistry
- University of Sindh
- Jamshoro 76080
- Pakistan
| | - Müge Andaç
- Department of Environmental Engineering
- Hacettepe University
- Ankara
- Turkey
| | - Najma Memon
- National Center of Excellence in Analytical Chemistry
- University of Sindh
- Jamshoro 76080
- Pakistan
| | | | - Shafi Muhammad Nizamani
- National Center of Excellence in Analytical Chemistry
- University of Sindh
- Jamshoro 76080
- Pakistan
| | - Adil Denizli
- Department of Chemistry
- Biochemistry Division
- Hacettepe University
- Ankara
- Turkey
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Maternal cypermethrin exposure during the perinatal period impairs testicular development in C57BL male offspring. PLoS One 2014; 9:e96781. [PMID: 24810582 PMCID: PMC4014553 DOI: 10.1371/journal.pone.0096781] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 04/11/2014] [Indexed: 11/19/2022] Open
Abstract
Numerous studies have demonstrated that endocrine-disrupting compounds (EDC) are a possible cause of male reproductive organ malfunction and malformation. Cypermethrin (CYP) is a widely used synthetic pyrethroid and a potential EDC. This study aimed to examine the effects of perinatal exposure to low-dose CYP on the development and function of the offspring testes. Pregnant mice were intragastrically administered 0.12 to 12 mg/kg/day CYP from embryonic day 0.5 (E0.5) to weaning (PD21.5, postnatal day 21.5). Maternal exposure to 0.12, 1.2, and 12 mg/kg/day CYP affected the body and organ weight of the offspring. Exposure of CYP led to a dose-dependent decrease in the male-to-female sex ratio. A histopathological analysis revealed a thinner seminiferous epithelium layer at PD21.5, interstitial hyperplasia at PD45.5, and germ cell vacuolization at PD90.5 in the 12 mg/kg/day CYP group. The TUNEL assay results revealed increased germ cell apoptosis in the 12 mg/kg/day CYP group. The serum testosterone (T) level decreased, whereas the estradiol level increased with age in the 1.2 and 12 mg/kg/day CYP groups. The RT-PCR analysis demonstrated decreased expression of T production-related, mitosis-related, and meiosis-related genes in the 1.2 and 12 mg/kg/day CYP groups. The in vitro experimental results demonstrated reduced expression of steroidogenesis genes and decreased T levels. It is concluded that perinatal exposure to low-dose CYP affects testes development and function in adults.
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Genome Sequence of Pyrethroid-Degrading Bacterium Rhodopseudomonas palustris Strain JSC-3b. GENOME ANNOUNCEMENTS 2014; 2:2/1/e01228-13. [PMID: 24459280 PMCID: PMC3900912 DOI: 10.1128/genomea.01228-13] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Rhodopseudomonas palustris strain JSC-3b is a facultative, thermophilic bacterium, which was isolated from water in a canal adjacent to a vegetable field. Strain JSC-3b biodegrades several varieties of pyrethroid residues effectively through cometabolic pathways. Here, we present the genome sequence of this biodegrader.
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Ben Slima A, Ben Abdallah F, Keskes-Ammar L, Mallek Z, El Feki A, Gdoura R. Embryonic exposure to dimethoate and/or deltamethrin impairs sexual development and programs reproductive success in adult male offspring mice. Andrologia 2011; 44 Suppl 1:661-6. [DOI: 10.1111/j.1439-0272.2011.01246.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Tiwari AK, Pragya P, Ravi Ram K, Chowdhuri DK. Environmental chemical mediated male reproductive toxicity: Drosophila melanogaster as an alternate animal model. Theriogenology 2011; 76:197-216. [PMID: 21356551 DOI: 10.1016/j.theriogenology.2010.12.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Revised: 12/28/2010] [Accepted: 12/31/2010] [Indexed: 01/16/2023]
Abstract
Industrialization and indiscriminate use of agrochemicals have increased the human health risk. Recent epidemiological studies raised a concern for male reproduction given their observations of reduced sperm counts and altered semen quality. Interestingly, environmental factors that include various metals, pesticides and their metabolites have been causally linked to such adversities by their presence in the semen at levels that correlate to infertility. The epidemiological observations were further supported by studies in animal models involving various chemicals. Therefore, in this review, we focused on male reproductive toxicity and the adverse effects of different environmental chemicals on male reproduction. However, it is beyond the scope of this review to provide a detailed appraisal of all of the environmental chemicals that have been associated with reproductive toxicity in animals. Here, we provided the evidence for reproductive adversities of some commonly encountered chemicals (pesticides/metals) in the environment. In view of the recent thrust for an alternate to animal models in research, we subsequently discussed the contributions of Drosophila melanogaster as an alternate animal model for quick screening of toxicants for their reproductive toxicity potential. Finally, we emphasized the genetic and molecular tools offered by Drosophila for understanding the mechanisms underlying the male reproductive toxicity.
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Affiliation(s)
- A K Tiwari
- Embryotoxicology Division, Indian Institute of Toxicology Research, M.G. Marg, Lucknow-226001, India
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Al-Hamdani NMH, Yajurvedi HN. Cypermethrin reversibly alters sperm count without altering fertility in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2010; 73:1092-1097. [PMID: 20435348 DOI: 10.1016/j.ecoenv.2010.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 04/12/2010] [Accepted: 04/13/2010] [Indexed: 05/29/2023]
Abstract
Administration of cypermethrin (CYP), orally by gavage (3 doses: 1.38, 2.76, and 5.52 mg/kg body weight) to mice either for 6 (D1) or 12 (D2) weeks caused a significant reduction in epididymal spermatozoa count and an increase in abnormal spermatozoa count when compared to controls. These counts returned to normal levels 6 weeks after cessation of 1.38 or 2.76 mg/kg body weight (BW) treatment either after D1 or D2. In 5.52 mg/kg BW treated mice the counts returned to normal levels following D1 but not after D2. Mice in all the treatment groups showed normal fertility. Weight of the litter born to mice mated with CYP treated (all three doses) males either in D1 or D2 was significantly lower than controls whereas gestation period and litter size did not significantly vary from controls. This is the first report revealing that CYP as low as 1.38 mg/kg BW adversely affects spermatogenesis and that the effect is reversible up to 2.76 mg/kg BW/kg BW exposure for 3 months. The results further reveal that despite reduction in sperm count and increase in proportion of abnormal spermatozoa, normal fertility is possible. Hence, in reproductive toxicity evaluation of pesticides, fertility test alone is misleading.
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Affiliation(s)
- Nada M H Al-Hamdani
- Department of Studies in Zoology, University of Mysore, Mysore 570 006, India.
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Wang XZ, Liu SS, Sun Y, Wu JY, Zhou YL, Zhang JH. Beta-cypermethrin impairs reproductive function in male mice by inducing oxidative stress. Theriogenology 2009; 72:599-611. [DOI: 10.1016/j.theriogenology.2009.04.016] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Revised: 03/15/2009] [Accepted: 04/11/2009] [Indexed: 10/20/2022]
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Burger J, Fossi C, McClellan-Green P, Orlando EF. Methodologies, bioindicators, and biomarkers for assessing gender-related differences in wildlife exposed to environmental chemicals. ENVIRONMENTAL RESEARCH 2007; 50:8977-92. [PMID: 17207477 DOI: 10.1021/acs.est.6b02253] [Citation(s) in RCA: 151] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2005] [Revised: 07/19/2006] [Accepted: 08/03/2006] [Indexed: 05/27/2023]
Abstract
Male and female organisms may have significant differences in their exposure, toxicokinetics, and response to chemicals, but gender effects have received relatively little attention, often viewed as a confounder rather than of primary importance. In this paper, we examine some of the key issues and methodologies for incorporating gender in studies of the effects of chemicals on wildlife, and explore bioindicators and biomarkers of gender effects. Examining gender-related differences in response to chemicals is complicated in wildlife because of the vast array of species, and differences in niches, lifespans, reproductive cycles and modes, and population dynamics. Further, organisms are more at risk in some ecosystems than others, which may increase the magnitude of effects. Only by studying wild animals, especially native species, can we truly understand the potential impact of gender-specific effects of chemical exposure on populations. Several factors affect gender-related differences in responses to chemicals, including exposure, age, size, seasonality, and genetic and phenotypic variation. There are clear examples where gender-related differences have had significant effects on reproductive success and population stability, including destabilization of gamete release in invertebrates, and alterations of endocrine and neuroendocrine system functioning in vertebrates. A wide range of new technologies and methods are available for examining gender-related differences in responses to chemicals. We provide examples that show that there are gender-related differences in responses to chemicals that have significant biological effects, and these gender-related differences should be taken into account by scientists, regulators, and policy makers, as well as the public.
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Affiliation(s)
- Joanna Burger
- Division of Life Sciences, Rutgers University, 604 Allison Road, Piscataway, NJ 08854P-8082, USA.
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