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Herrero Ó, Aquilino M, Sánchez-Argüello P, Planelló R. The BPA-substitute bisphenol S alters the transcription of genes related to endocrine, stress response and biotransformation pathways in the aquatic midge Chironomus riparius (Diptera, Chironomidae). PLoS One 2018; 13:e0193387. [PMID: 29466445 PMCID: PMC5821402 DOI: 10.1371/journal.pone.0193387] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/11/2018] [Indexed: 01/19/2023] Open
Abstract
Bisphenol S (BPS) is an industrial alternative to the endocrine disruptor bisphenol A (BPA), and can be found in many products labeled “BPA-free”. Its use has grown in recent years, and presently it is considered a ubiquitous emerging pollutant. To date there is a lack of information on the effects of BPS on invertebrates, although they represent more than 95% of known species in the animal kingdom and are crucial for the structure and proper function of ecosystems. In this study, real-time RT-PCR was used to determine the early detrimental effects of BPS on the transcriptional rate of genes in the model species Chironomus riparius, specifically those related to the ecdysone pathway (EcR, ERR, E74, Vtg, cyp18a1) crucial for insect development and metamorphosis, stress and biotransformation mechanisms (hsp70, hsp40, cyp4g, GPx, GSTd3) that regulate adaptive responses and determine survival, and ribosome biogenesis (its2, rpL4, rpL13) which is essential for protein synthesis and homeostasis. While 24-hour exposure to 0.5, 5, 50, and 500 μg/L BPS had no effect on larval survival, almost all the studied genes were upregulated following a non-monotonic dose-response curve. Genes with the greatest increases in transcriptional activity (fold change relative to control) were EcR (3.8), ERR (2), E74 (2.4), cyp18a1 (2.5), hsp70 (1.7), hsp40 (2.5), cyp4g (6.4), GPx (1.8), and GST (2.1), while others including Vtg, GAPDH, and selected ribosomal genes remained stable. We also measured the transcriptional activity of these genes 24 hours after BPS withdrawal and a general downregulation compared to controls was observed, though not significant in most cases. Our findings showed that BPS exposure altered the transcriptional profile of these genes, which may have consequences for the hormone system and several metabolic pathways. Although further research is needed to elucidate its mode of action, these results raise new concerns about the safety of BPA alternatives.
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Affiliation(s)
- Óscar Herrero
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Madrid, Spain
| | - Mónica Aquilino
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Madrid, Spain
| | - Paloma Sánchez-Argüello
- Laboratorio de Ecotoxicología, Departamento de Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, INIA, Madrid, Spain
| | - Rosario Planelló
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Madrid, Spain
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52
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Sugimoto H, Ikeda K, Kawakami K. Atp1a3-
deficient heterozygous mice show lower rank in the hierarchy and altered social behavior. GENES BRAIN AND BEHAVIOR 2017; 17:e12435. [DOI: 10.1111/gbb.12435] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 12/20/2022]
Affiliation(s)
- H. Sugimoto
- Division of Biology, Center for Molecular Medicine; Jichi Medical University; Tochigi Japan
| | - K. Ikeda
- Division of Biology, Center for Molecular Medicine; Jichi Medical University; Tochigi Japan
- Department of Physiology; International University of Health and Welfare, School of Medicine; Chiba Japan
| | - K. Kawakami
- Division of Biology, Center for Molecular Medicine; Jichi Medical University; Tochigi Japan
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53
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LaPlante CD, Catanese MC, Bansal R, Vandenberg LN. Bisphenol S Alters the Lactating Mammary Gland and Nursing Behaviors in Mice Exposed During Pregnancy and Lactation. Endocrinology 2017; 158:3448-3461. [PMID: 28977596 PMCID: PMC5659700 DOI: 10.1210/en.2017-00437] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/10/2017] [Indexed: 11/19/2022]
Abstract
High doses of estrogenic pharmaceuticals were once prescribed to women to halt lactation. Yet, the effects of low-level xenoestrogens on lactation remain poorly studied. We investigated the effects of bisphenol S (BPS), an estrogen receptor (ER) agonist, on the lactating mammary gland; the arcuate nucleus, a region of the hypothalamus important for neuroendocrine control of lactational behaviors; and nursing behavior in CD-1 mice. Female mice were exposed to vehicle, 2 or 200 µg BPS/kg/d from pregnancy day 9 until lactational day (LD) 20, and tissues were collected on LD21. Tissues were also collected from a second group at LD2. BPS exposure significantly reduced the fraction of the mammary gland comprised of lobules, the milk-producing units, on LD21, but not LD2. BPS also altered expression of Esr1 and ERα in the mammary gland at LD21, consistent with early involution. In the arcuate nucleus, no changes were observed in expression of signal transducer and activator of transcription 5, a marker of prolactin signaling, or ERα, suggesting that BPS may act directly on the mammary gland. However, observations of nursing behavior collected during the lactational period revealed stage-specific effects on both pup and maternal nursing behaviors; BPS-treated dams spent significantly more time nursing later in the lactational period, and BPS-treated pups were less likely to initiate nursing. Pup growth and development were also stunted. These data indicate that low doses of BPS can alter lactational behaviors and the maternal mammary gland. Together, they support the hypothesis that pregnancy and lactation are sensitive to low-dose xenoestrogen exposures.
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Affiliation(s)
- Charlotte D. LaPlante
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
| | - Mary C. Catanese
- Graduate Program in Neuroscience and Behavior, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
| | - Ruby Bansal
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
- Graduate Program in Neuroscience and Behavior, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
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54
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Rosenfeld CS. Neuroendocrine disruption in animal models due to exposure to bisphenol A analogues. Front Neuroendocrinol 2017; 47:123-133. [PMID: 28801100 PMCID: PMC5612897 DOI: 10.1016/j.yfrne.2017.08.001] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/14/2017] [Accepted: 08/05/2017] [Indexed: 12/26/2022]
Abstract
Animal and human studies provide evidence that exposure to the endocrine disrupting chemical (EDC), bisphenol A (BPA), can lead to neurobehavioral disorders. Consequently, there is an impetus to identify safer alternatives to BPA. Three bisphenol compounds proposed as potential safer alternatives to BPA are bisphenol S (BPS), bisphenol F (BPF), and bisphenol AF (BPAF). However, it is not clear whether these other compounds are safer in terms of inducing less endocrine disrupting effects in animals and humans who are now increasingly coming into contact with these BPA-substitutes. In the past few years, several animal studies have shown exposure to these other bisphenols induce similar neurobehavioral disruption as BPA. We will explore in this review article the current studies suggesting these other bisphenols result in neuroendocrine disruptions that may be estrogen receptor-dependent. Current work may aide in designing future studies to test further whether these BPA-substitutes can act as neuroendocrine disruptors.
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Affiliation(s)
- Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA; Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211, USA; Genetics Area Program, University of Missouri, Columbia, MO 65211, USA.
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55
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Zhu Y, Tan YQ, Leung LK. Exposure to 2,2',4,4'-tetrabromodiphenyl ether at late gestation modulates placental signaling molecules in the mouse model. CHEMOSPHERE 2017; 181:289-295. [PMID: 28448910 DOI: 10.1016/j.chemosphere.2017.04.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/19/2017] [Accepted: 04/20/2017] [Indexed: 06/07/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are flame retardants generally employed in manufacturing household items. Surface water may remove and carry these chemicals to the drainage upon disposal of the items, and ultimately the chemicals enter our food chain. 2,2',4,4'-Tetrabromodiphenyl ether (BDE-47) is a PBDE congener commonly found in contaminated seafood. The placenta is the site of nutrient exchange and is responsible for reproductive hormone secretion during pregnancy. In the present study, pregnant ICR mice were given p.o. daily doses of BDE-47 at 0, 0.36, 3.6, 36 mg/kg for 4 days (from E13.5 to E16.5). Compared to the control group, increased rates of stillborn and low birth weight were observed in mice treated with 36 mg BDE-47/kg. Plasma testosterone and progesterone levels were reduced in mice treated with 36 mg BDE-47/kg. In addition, the group treated with 3.6 mg/kg of BDE-47 displayed decreased growth hormone (Gh) peptide expression in the placental tissue extracted at E17.5. As this peptide stimulates growth, the expression pattern might suggest compromised fetal development. Further analysis indicated that mitogen-activated protein kinases (MAPK) were activated in the placental tissue of the BDE-47-treatment groups. The activation of these signaling molecules might affect the hormonal and other physiological functions in the tissue.
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Affiliation(s)
- Yun Zhu
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Yan Qin Tan
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Lai K Leung
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong; Biochemistry Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong.
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56
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Pereira LC, Duarte FV, Varela ATIF, Rolo AP, Palmeira CMM, Dorta DJ. Exposure to BDE-153 induces autophagy in HepG2 cells. Toxicol In Vitro 2017; 42:61-68. [DOI: 10.1016/j.tiv.2017.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 04/05/2017] [Accepted: 04/06/2017] [Indexed: 12/19/2022]
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Catanese MC, Vandenberg LN. Low doses of 17α-ethinyl estradiol alter the maternal brain and induce stereotypies in CD-1 mice exposed during pregnancy and lactation. Reprod Toxicol 2017; 73:20-29. [PMID: 28736173 DOI: 10.1016/j.reprotox.2017.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/12/2017] [Accepted: 07/14/2017] [Indexed: 01/08/2023]
Abstract
Maternal care is critical for the survival, development and long-term success of offspring. Despite our current understanding of the role of endogenous estrogen in both maternal behavior and the maternal brain, the potential effects of exogenous estrogens on these endpoints remain poorly understood. Here, pregnant CD-1 mice were exposed to low doses of 17α-ethinyl estradiol (EE2), commonly used as a positive control in studies of other xenoestrogens, from day 9 of pregnancy until weaning. Using traditional maternal behavior assays, we document no significant changes in maternal behavior throughout the lactational period. However, EE2 induced increases in repetitive tail retrieval, which may indicate a stereotypy or obsessive compulsive (OCD)-like behavior. We also observed a significant reduction in tyrosine hydroxylase (TH) immunoreactivity in the ventral tegmental area (VTA), a region important for maternal motivation. These results suggest that pregnant adult females are not immune to the effects of this compound.
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Affiliation(s)
- Mary C Catanese
- Program in Neuroscience and Behavior, University of Massachusetts, Amherst, USA
| | - Laura N Vandenberg
- Program in Neuroscience and Behavior, University of Massachusetts, Amherst, USA; Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, USA.
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58
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Bernier MR, Vandenberg LN. Handling of thermal paper: Implications for dermal exposure to bisphenol A and its alternatives. PLoS One 2017; 12:e0178449. [PMID: 28570582 PMCID: PMC5453537 DOI: 10.1371/journal.pone.0178449] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/12/2017] [Indexed: 01/04/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine disrupting chemical used in a wide range of consumer products including photoactive dyes used in thermal paper. Recent studies have shown that dermal absorption of BPA can occur when handling these papers. Yet, regulatory agencies have largely dismissed thermal paper as a major source of BPA exposure. Exposure estimates provided by agencies such as the European Food Safety Authority (EFSA) are based on assumptions about how humans interact with this material, stating that 'typical' exposures for adults involve only one handling per day for short periods of time (<1 minute), with limited exposure surfaces (three fingertips). The objective of this study was to determine how individuals handle thermal paper in one common setting: a cafeteria providing short-order meals. We observed thermal paper handling in a college-aged population (n = 698 subjects) at the University of Massachusetts' dining facility. We find that in this setting, individuals handle receipts for an average of 11.5 min, that >30% of individuals hold thermal paper with more than three fingertips, and >60% allow the paper to touch their palm. Only 11% of the participants we observed were consistent with the EFSA model for time of contact and dermal surface area. Mathematical modeling based on handling times we measured and previously published transfer coefficients, concentrations of BPA in paper, and absorption factors indicate the most conservative estimated intake from handling thermal paper in this population is 51.1 ng/kg/day, similar to EFSA's estimates of 59 ng/kg/day from dermal exposures. Less conservative estimates, using published data on concentrations in thermal paper and transfer rates to skin, indicate that exposures are likely significantly higher. Based on our observational data, we propose that the current models for estimating dermal BPA exposures are not consistent with normal human behavior and should be reevaluated.
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Affiliation(s)
- Meghan R. Bernier
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, Amherst, Massachusetts United States of America
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, Amherst, Massachusetts United States of America
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59
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Hill CE, Sapouckey SA, Suvorov A, Vandenberg LN. Developmental exposures to bisphenol S, a BPA replacement, alter estrogen-responsiveness of the female reproductive tract: a pilot study. COGENT MEDICINE 2017; 4:1317690. [PMID: 31231671 PMCID: PMC6588183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Developmental exposures to bisphenol A (BPA), an estrogen receptor agonist, can disrupt development of the female reproductive tract in rodents and non-human primates. Due to an increased public knowledge of negative health effects associated with BPA exposure, BPA has begun to be phased out of many consumer products and in some cases it has been replaced with structurally similar compounds including bisphenol S (BPS). This study examined CD-1 mice exposed to a low dose of BPS during early development (200 µg/kg/day from gestational day 8 until postnatal day 19). BPS altered expression of estrogen-responsive genes in both the uterus and ovary, and induced increases in ovarian follicular development in pre-pubertal females evaluated at postnatal day 22. Prior studies have revealed that developmental exposures to environmental chemicals including BPA alter the response of animals to hormonal or carcinogen challenges experienced later in life. To evaluate whether early life exposures to BPS alter responses of females to an estrogen challenge, additional females were exposed to ethinyl estradiol from postnatal day 19 through postnatal day 21. BPS-treated females responded abnormally to this estrogen challenge, displaying heightened responses in the uterus and diminished responses in the ovary. Although additional studies are needed to characterize the mechanisms by which BPS alters the female reproductive tract, this pilot study provides evidence that a common BPA replacement chemical may have endocrine disrupting properties.
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Affiliation(s)
- Corinne E. Hill
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts - Amherst
| | - Sarah A. Sapouckey
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts - Amherst
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts - Amherst
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts - Amherst
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60
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Hill CE, Sapouckey SA, Suvorov A, Vandenberg LN. Developmental exposures to bisphenol S, a BPA replacement, alter estrogen-responsiveness of the female reproductive tract: A pilot study. COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1317690] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Corinne E. Hill
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171A Goessmann, 686 N. Pleasant Street, Amherst, MA 01003, USA
| | - Sarah A. Sapouckey
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171A Goessmann, 686 N. Pleasant Street, Amherst, MA 01003, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171A Goessmann, 686 N. Pleasant Street, Amherst, MA 01003, USA
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171A Goessmann, 686 N. Pleasant Street, Amherst, MA 01003, USA
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61
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Catanese MC, Vandenberg LN. Bisphenol S (BPS) Alters Maternal Behavior and Brain in Mice Exposed During Pregnancy/Lactation and Their Daughters. Endocrinology 2017; 158:516-530. [PMID: 28005399 PMCID: PMC5460783 DOI: 10.1210/en.2016-1723] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 12/05/2016] [Indexed: 01/12/2023]
Abstract
Estrogenic endocrine disrupting chemicals have been shown to disrupt maternal behavior in rodents. We investigated the effects of an emerging xenoestrogen, bisphenol S (BPS), on maternal behavior and brain in CD-1 mice exposed during pregnancy and lactation (F0 generation) and in female offspring exposed during gestation and perinatal development (F1 generation). We observed different effects in F0 and F1 dams for a number of components of maternal behavior, including time on the nest, time spent on nest building, latency to retrieve pups, and latency to retrieve the entire litter. We also characterized expression of estrogen receptor α in the medial preoptic area (MPOA) and quantified tyrosine hydroxylase immunoreactive cells in the ventral tegmental area, 2 brain regions critical for maternal care. BPS-treated females in the F0 generation had a statistically significant increase in estrogen receptor α expression in the caudal subregion of the central MPOA in a dose-dependent manner. In contrast, there were no statistically significant effects of BPS on the MPOA in F1 dams or the ventral tegmental area in either generation. This work demonstrates that BPS affects maternal behavior and brain with outcomes depending on generation, dose, and postpartum period. Many studies examining effects of endocrine disrupting chemicals view the mother as a means by which offspring can be exposed during critical periods of development. Here, we demonstrate that pregnancy and lactation are vulnerable periods for the mother. We also show that developmental BPS exposure alters maternal behavior later in adulthood. Both findings have potential public health implications.
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Affiliation(s)
- Mary C. Catanese
- Graduate Program in Neuroscience and Behavior, University of Massachusetts–Amherst, Amherst, Massachusetts 01003; and
| | - Laura N. Vandenberg
- Graduate Program in Neuroscience and Behavior, University of Massachusetts–Amherst, Amherst, Massachusetts 01003; and
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts–Amherst, Amherst, Massachusetts 01003
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62
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Guimarães ATB, Ferreira RDO, Rabelo LM, E Silva BC, de Souza JM, da Silva WAM, de Menezes IPP, Rodrigues ASDL, Vaz BG, de Oliveira Costa DR, Pereira I, da Silva AR, Malafaia G. The C57BL/6J mice offspring originated from a parental generation exposed to tannery effluents shows object recognition deficits. CHEMOSPHERE 2016; 164:593-602. [PMID: 27635641 DOI: 10.1016/j.chemosphere.2016.08.144] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/24/2016] [Accepted: 08/31/2016] [Indexed: 06/06/2023]
Abstract
The main aim of the present paper is to assess whether the parental generation exposure to such discharges could cause object recognition deficits in their offspring. Male and female C57Bl/6J mice were put to mate after they were exposed to 7.5% and 15% tannery effluents or water (control group), for 60 days. The male mice were withdrawn from the boxes after 15 days and the female mice remained exposed to the treatment during the gestation and lactation periods. The offspring were subjected to the object recognition test after weaning in order to assess possible cognition losses. The results of the analysis of the novel object recognition index found in the testing session (performed 1 h after the training session) applied to offspring from different experimental groups appeared to be statistically different. The novel object recognition index of the offspring from female mice exposed to tannery effluents (7.5% and 15% groups) was lower than that of the control group, and it demonstrated object recognition deficit in the studied offspring. The present study is the first to report evidences that parental exposure to effluent of tannery (father and mother) can cause object recognition deficit in the offspring, which is related to problems in the central nervous system.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | | | - Letícia Martins Rabelo
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Bianca Costa E Silva
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Joyce Moreira de Souza
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Wellington Alves Mizael da Silva
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Ivandilson Pessoa Pinto de Menezes
- Departamento de Ciências Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Departamento de Ciências Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Boniek Gontijo Vaz
- Programa de Pós-Graduação em Química, Universidade Federal de Goiás - Campus Samambaia, Goiânia, GO, Brazil
| | | | - Igor Pereira
- Programa de Pós-Graduação em Química, Universidade Federal de Goiás - Campus Samambaia, Goiânia, GO, Brazil
| | - Anderson Rodrigo da Silva
- Departamento de Ciências Agrárias, Laboratório de Estatística Experimental, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Departamento de Ciências Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás - Campus Samambaia, Goiânia, GO, Brazil.
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63
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Goto T, Tomonaga S, Okayama T, Toyoda A. Murine Depression Model and its Potential Applications for Discovering Foods and Farm Products with Antidepressant-Like Effects. Front Neurosci 2016; 10:72. [PMID: 26973450 PMCID: PMC4771721 DOI: 10.3389/fnins.2016.00072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 02/16/2016] [Indexed: 12/26/2022] Open
Abstract
Advanced societies face increased health problems related to various stresses. Chronic psychological stress is a major risk factor for psychiatric disorders such as depression. Although therapeutic agents reduce several symptoms of depression, most have side effects in a broad range of the population. Furthermore, some victims of depression do not show significant improvement with any drugs, so alternative approaches are needed. Good dietary habits may potentially reduce depressive symptoms, but there is little scientific evidence thus far. Murine depression models are useful to test nutritional approaches in vivo. Our model mice subjected to a subchronic mild social defeat stress (sCSDS) paradigm show several alterations in physiological parameters and social behavior. These stress-induced symptoms in sCSDS mice can be used as cues to identify antidepressant-like natural resources including foods and farm products. We previously discovered that sCSDS mice show more vulnerability to social stress by changing dietary condition. In addition, we developed a more objective system for analyzing mouse behavior using a 3D depth-sensing camera to understand relationships between diet and behavior. The combination of sCSDS mice with 3D behavioral analysis is a powerful method for screening ingredients in foods and farm products for antidepressant-like effects.
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Affiliation(s)
- Tatsuhiko Goto
- Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan
| | - Shozo Tomonaga
- Graduate School of Agriculture, Kyoto University Kyoto, Japan
| | - Tsuyoshi Okayama
- Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan; Department of Biological Production Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and TechnologyFuchu, Japan
| | - Atsushi Toyoda
- Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan; Department of Biological Production Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and TechnologyFuchu, Japan
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Paigen B, Currer JM, Svenson KL. Effects of Varied Housing Density on a Hybrid Mouse Strain Followed for 20 Months. PLoS One 2016; 11:e0149647. [PMID: 26900840 PMCID: PMC4762697 DOI: 10.1371/journal.pone.0149647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 02/03/2016] [Indexed: 11/23/2022] Open
Abstract
To evaluate the effect of increased housing density in a hybrid mouse strain, we evaluated a panel of physiological and behavioral traits in animals that were housed in groups of 3, 5, 8, or 12, using cages that provide 78.1 in2 of floor space. Such groupings resulted in cage densities that ranged from half to almost twice the density recommended by the Guide for the Care and Use of Laboratory Animals. While previous studies have investigated physiological effects of increased housing density using inbred mouse strains, including C57BL/6J and 129S1/SvImJ, this study tested an F1 hybrid population of C57BL/6J x 129S1/SvImJ for changes resulting from either decreased or increased housing density. Mice were followed until they were 20 months old, a substantially longer duration than has been used in previous density studies. We evaluated mortality, growth, home cage behavior, blood pressure, body composition, clinical plasma chemistries, immune function, and organ weights (heart, kidney, adrenal glands, and testes) as endpoints of chronic stress that may arise from sub-optimal housing conditions. Few statistically different parameters were observed in this study, none of which describe chronic stress and all within normal physiological ranges for research mice, suggesting that this hybrid strain was not adversely affected by housing at twice the density currently recommended.
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Affiliation(s)
- Beverly Paigen
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, 04609, United States of America
| | - Joanne M. Currer
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, 04609, United States of America
| | - Karen L. Svenson
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, 04609, United States of America
- * E-mail:
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