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Tanaka T, Suzuki J, Inomata A. Reproductive and neurobehavioral effects of dinotefuran in an F 1 -generation toxicity study in mice. Birth Defects Res 2023; 115:1534-1555. [PMID: 37548121 DOI: 10.1002/bdr2.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/07/2023] [Accepted: 07/20/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Few studies were found for neurobehavioral toxicity of dinotefuran in mammals. This study was designed to evaluate the reproductive and neurobehavioral effects of dinotefuran exposure in mice. METHODS Dinotefuran was given in the diet to provide levels of 0% (control), 0.015%, 0.03%, and 0.06% from 5 weeks of age of the F0 generation to 11 weeks of age of the F1 generation in mice. Selected reproductive and neurobehavioral parameters were measured. RESULTS Movement time increased with a significant dose-related trend, and the related variables of rearing time decreased in significant dose-related trends in adult males in the F0 generation. Litter size and weight increased in significant dose-related trends, and sex ratio decreased in a significant dose-related trend. The average body weight of offspring increased in a significant dose-related trend on postnatal day (PND) 21 in both sexes. In the olfactory orientation on PND 14 in female offspring, the time required lengthened in a significant dose-related trend. In male offspring, total distance and the average speed decreased in significant dose-related trends, and the average time of rearing, number of defecations, and frequencies of mice with urination increased in a significant dose-related trend. In female offspring, the related variables of rearing increased in significant dose-related trends. In spontaneous behavior of males, the parallel lines during the control and treatment groups indicated a significant distance in the number of horizontal activities. CONCLUSIONS The dose levels of dinotefuran in the present study produced several adverse effects on reproductive and neurobehavioral parameters in mice.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Jin Suzuki
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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Berisha H, Horváth G, Fišer Ž, Balázs G, Fišer C, Herczeg G. Sex-dependent increase of movement activity in the freshwater isopod Asellus aquaticus following adaptation to a predator-free cave habitat. Curr Zool 2023; 69:418-425. [PMID: 37614916 PMCID: PMC10443615 DOI: 10.1093/cz/zoac063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/02/2022] [Indexed: 08/25/2023] Open
Abstract
Populations experiencing negligible predation pressure are expected to evolve higher behavioral activity. However, when sexes have different expected benefits from high activity, the adaptive shift is expected to be sex-specific. Here, we compared movement activity of one cave (lack of predation) and three adjacent surface (high and diverse predation) populations of Asellus aquaticus, a freshwater isopod known for its independent colonization of several caves across Europe. We predicted 1) higher activity in cave than in surface populations, with 2) the difference being more pronounced in males as they are known for active mate searching behavior, while females are not. Activity was assessed both in the presence and absence of light. Our results supported both predictions: movement activity was higher in the cave than in the surface populations, particularly in males. Relaxed predation pressure in the cave-adapted population is most likely the main selective factor behind increased behavioral activity, but we also showed that the extent of increase is sex-specific.
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Affiliation(s)
- Hajriz Berisha
- Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Biological Institute, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
| | - Gergely Horváth
- Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Biological Institute, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
- ELKH-ELTE-MTM Integrative Ecology Research Group, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
| | - Žiga Fišer
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Gergely Balázs
- Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Biological Institute, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
- ELKH-ELTE-MTM Integrative Ecology Research Group, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
| | - Cene Fišer
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Gábor Herczeg
- Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Biological Institute, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
- ELKH-ELTE-MTM Integrative Ecology Research Group, Pázmány Péter sétány 1/C, Budapest, Hungary H-1117
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Maddeh M, Hajjej F, Alazzam MB, Otaibi SA, Turki NA, Ayouni S. Spatio-Temporal Cluster Mapping System in Smart Beds for Patient Monitoring. Sensors (Basel) 2023; 23:4614. [PMID: 37430526 DOI: 10.3390/s23104614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/03/2023] [Accepted: 05/06/2023] [Indexed: 07/12/2023]
Abstract
Innovative technological solutions are required to improve patients' quality of life and deliver suitable treatment. Healthcare workers may be able to watch patients from a distance using the Internet of Things (IoT) by using big data algorithms to analyze instrument outputs. Therefore, it is essential to gather information on use and health problems in order to improve the remedies. To ensure seamless incorporation for use in healthcare institutions, senior communities, or private homes, these technological tools must first and foremost be easy to use and implement. We provide a network cluster-based system known as smart patient room usage in order to achieve this. As a result, nursing staff or caretakers can use it efficiently and swiftly. This work focuses on the exterior unit that makes up a network cluster, a cloud storage mechanism for data processing and storage, as well as a wireless or unique radio frequency send module for data transfer. In this article, a spatio-temporal cluster mapping system is presented and described. This system creates time series data using sense data collected from various clusters. The suggested method is the ideal tool to use in a variety of circumstances to improve medical and healthcare services. The suggested model's ability to anticipate moving behavior with high precision is its most important feature. The time series graphic displays a regular light movement that continued almost the entire night. The last 12 h' lowest and highest moving duration numbers were roughly 40% and 50%, respectively. When there is little movement, the model assumes a normal posture. Particularly, the moving duration ranges from 7% to 14%, with an average of 7.0%.
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Affiliation(s)
- Mohamed Maddeh
- College of Applied Computer Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fahima Hajjej
- Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Malik Bader Alazzam
- Information Technology College, Ajloun National University, Irbid 21163, Jordan
| | - Shaha Al Otaibi
- Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Nazek Al Turki
- Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Sarra Ayouni
- Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
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Slavík O, Horký P, Valchářová T, Pfauserová N, Velíšek J. Comparative study of stress responses, laterality and familiarity recognition between albino and pigmented fish. ZOOLOGY 2021; 150:125982. [PMID: 34896758 DOI: 10.1016/j.zool.2021.125982] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/08/2021] [Accepted: 11/14/2021] [Indexed: 01/19/2023]
Abstract
Oculocutaneous albinism is the result of a combination of homozygous recessive mutations that block the synthesis of the tyrosine and melatonin hormones. This disability is associated with physiological limitations, e.g., visual impairment expressed by lower visual acuity and movement perception, and eventually leads to acrophobia and/or photophobia, suggesting a potentially higher stress level associated with the behavioral responses of individuals with albinism to external stimuli compared to their pigmented conspecifics. However, in fish, differences in behavioral and/or physiological responses and stress levels between these phenotypes have been poorly documented. While acoustic perception of albino individuals is well known, the use of olfactory sensors for social communication, e.g., for the preference for familiar conspecifics, remains poorly understood. We performed two laboratory experiments with albino and pigmented European catfish Silurus glanis to observe: i) their behavioral and physiological responses to short-term stress induced by a combination of air exposure and novel environmental stressors and ii) their ability to use odor keys to recognize of familiar conspecifics and the influence of lateralization on this preference. In response to stress stimuli, albino fish showed higher movement activities and ventilatory frequencies and more often changed their swimming directions compared to their pigmented conspecifics. Blood plasma analysis showed significantly higher values of stress-, deprivation-, and emotional arousal-associated substances, e.g., glucose and lactate, as well as of substances released during intensive muscle activity of hyperventilation and tissue hypoxia, e.g., hemoglobin, mean corpuscular hemoglobin, erythrocytes, and neutrophil granulocytes. A preference test between environments with and without scented water showed the preference by both albino and pigmented catfish for environments with scent of familiar conspecifics, and both groups of fish displayed left-side lateralization associated with the observation of conspecifics and group coordination. The results tended to show higher physiological and behavioral responses of albinos to stress stimuli compared to the responses of their pigmented conspecifics, but the uses of olfactory sensors and lateralization were not differentiated between the two groups.
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Affiliation(s)
- Ondřej Slavík
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol, 165 21, Czech Republic.
| | - Pavel Horký
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol, 165 21, Czech Republic
| | - Tereza Valchářová
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol, 165 21, Czech Republic
| | - Nikola Pfauserová
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol, 165 21, Czech Republic
| | - Josef Velíšek
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
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Tanaka T, Suzuki J, Inomata A, Moriyasu T. Combined effects of maternal exposure to fungicides on behavioral development in F 1 -generation mice: 3. Fixed-dose study of imazalil. Birth Defects Res 2021; 113:1390-1406. [PMID: 34542240 DOI: 10.1002/bdr2.1956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/15/2021] [Accepted: 09/09/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Few published studies are reported for the neurobehavioral toxicity of combined exposure to fungicides in mammals. This study was aimed to re-evaluate the reproductive and neurobehavioral effects of maternal exposure to combined imazalil (IMZ) and thiabendazole (TBZ) with fixed-dose of IMZ in mice. METHODS IMZ/TBZ was given in the diet to provide levels of 0%/0% (control), 0.006%/0.006% (IMZ/TBZ), 0.006%/0.018%, and 0.006%/0.054% during the gestation and lactation periods. Selected reproductive and neurobehavioral parameters were measured in the F1 generation. RESULTS No adverse effect of IMZ/TBZ was observed in litter size, litter weight, or sex ratio at birth. Concerning behavioral developmental parameters, the time required of olfactory orientation was accelerated significantly in higher-dose groups in female offspring on postnatal day 14 in a dose-related manner. Exploratory behavior examination indicated that the frequency of mice with urination increased in a significantly dose-related manner in male offspring. After weaning, any variables of exploratory behavior indicated no significant effects in both sexes of adult mice in the F1 generation. In spontaneous behavior, the longitudinal pattern of total distance was not parallel (different pattern) among the control and IMZ/TBZ treatment groups in adult males. CONCLUSIONS The results from these series of combined exposure studies of IMZ/TBZ suggest that the main effects on exploratory and spontaneous behavior of adult mice in the F1 generation after finishing chemical administration have been caused by the IMZ concentration of maternal exposure, with TBZ's effects being complementary.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
| | - Jin Suzuki
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
| | - Takako Moriyasu
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
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Tanaka T, Suzuki T, Inomata A, Moriyasu T. Combined effects of maternal exposure to fungicides on behavioral development in F 1 -generation mice: 2. Fixed-dose study of thiabendazole. Birth Defects Res 2020; 112:1809-1824. [PMID: 32888400 DOI: 10.1002/bdr2.1793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/20/2020] [Accepted: 08/17/2020] [Indexed: 11/12/2022]
Abstract
BACKGROUND Few published studies are reported for the neurobehavioral toxicity of combined exposure to fungicides in mammals. This study was aimed to re-evaluate the reproductive and neurobehavioral effects of maternal exposure to combined imazalil (IMZ) and thiabendazole (TBZ) with fixed-dose of TBZ in mice. METHODS IMZ/TBZ were given in the diet to provide levels of 0%/0% (control), 0.0015%/0.018% (IMZ/TBZ), 0.006%/0.018% and 0.024%/0.018% during the gestation and lactation periods. Selected reproductive and neurobehavioral parameters were measured in the F1 generation. RESULTS No adverse effect of IMZ/TBZ was observed in litter size, litter weight, or sex ratio at birth. Concerning behavioral developmental parameters, the cliff avoidance on PND 7 of male offspring was restrained significantly in the treatment groups in a dose-related manner. Exploratory behavior examination indicated that the average time of rearing significantly lengthened in the high-dose group of male offspring. After weaning, the average time of rearing in exploratory behavior lengthened in a significant dose-related trend in adult females of the F1 generation. Spontaneous behavior examination indicated that the average speed decreased significantly through 120 min in the high-dose group of the F1 -generation males. In females, the average time of rearing lengthened significantly through 120 min in the high-dose group. In the longitudinal patterns, the parallel lines of the control and treatment groups indicated a significant distance in the average time of rearing in the F1 -generation females. CONCLUSIONS The results from two combined exposure studies of IMZ/TBZ suggest that TBZ concentrations have caused major effects on exploratory and spontaneous behavior.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Toshinari Suzuki
- Division of Pharmaceutical Science, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Takako Moriyasu
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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Tanaka T, Suzuki T, Inomata A, Moriyasu T. Combined effects of maternal exposure to fungicides on behavioral development in F 1 -generation mice: 1. Several dose study of both imazalil and thiabendazole. Birth Defects Res 2020; 112:141-161. [PMID: 31680484 DOI: 10.1002/bdr2.1613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 10/08/2019] [Accepted: 10/17/2019] [Indexed: 11/08/2022]
Abstract
BACKGROUND Few published studies are reported for neurobehavioral toxicity of combined exposure to fungicides in mammals. This study was aimed to evaluate reproductive and neurobehavioral effects of maternal exposure to combined fungicides in mice. METHODS Imazalil (IMZ) and thiabendazole (TBZ) were given in the diet to provide levels of 0/0% (control), 0.0015/0.006% (IMZ/TBZ), 0.006/0.018%, and 0.024/0.054% during the gestation and lactation periods. Selected reproductive and neurobehavioral parameters were measured in the F1 generation. RESULTS No adverse effect of IMZ/TBZ was observed in litter size, litter weight, or sex ratio at birth. The average body weight of male and female offspring was increased significantly in treatment groups during the lactation period. With respect to behavioral developmental parameters, the swimming head angle on PND 7 of male offspring was significantly accelerated in the treatment groups. After weaning, the movement time of exploratory behavior shortened in a significant dose-related manner in adult males of the F1 generation. In adult females, the rearing time of exploratory behavior lengthened in a significant dose-related manner in the F1 generation. Spontaneous behavior examination indicated that longitudinal patterns of each of the total distance and number of rearing were different during the control and treatment groups in the F1 -generation females. Parallel width of the control and treatment groups was significantly different in the average time of movement and rearing in the F1 -generation females. CONCLUSIONS The high-dose level of IMZ/TBZ in the present study produced several adverse effects in neurobehavioral parameters after weaning without concurrent chemical administration in mice.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Toshinari Suzuki
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Takako Moriyasu
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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Tanaka T, Inomata A. Reproductive and neurobehavioral effects of maternal exposure to piperonyl butoxide (PBO) in F 1 -generation mice. ACTA ACUST UNITED AC 2016; 107:195-205. [PMID: 27643382 DOI: 10.1002/bdrb.21185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/17/2016] [Accepted: 08/18/2016] [Indexed: 12/19/2022]
Abstract
Female mice were exposed maternally to piperonyl butoxide (PBO) through diet to provide levels of 0 (control), 0.015, 0.03, and 0.06% during gestation and lactation periods, and selected reproductive and neurobehavioral parameters were measured in F1 generation. There was no adverse effect of PBO on litter size, litter weight, or sex ratio at birth. The average body weights of offspring showed no significant effects of PBO treatment through the lactation period in both sexes except for the low-dose group of females on PND 21. With respect to behavioral developmental parameters, swimming direction of female offspring on PND 7 was significantly accelerated in the low-dose group (p = 0.022). Exploratory behavior examination in male offspring indicated that total distance and movement time shortened significantly in dose-related manners (p = 0.0138 and 0.00231, respectively), average time of rearing lengthened significantly in a dose-related manner (p = 0.00814), and the frequencies of mice with urination was increased significantly in a dose-related manner (p < 0.05). For spontaneous behavior examination, the average time of movement in males and average time of rearing in females showed slightly dose-related effects in the F1 generation. The dose levels of PBO in the present study produced some adverse effects in neurobehavioral parameters in mice.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan.
| | - Akiko Inomata
- Division of Toxicology, Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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Tanaka T, Inomata A. Effects of Maternal Exposure to Piperonyl Butoxide (PBO) on Behavioral Development in F1-Generation Mice. ACTA ACUST UNITED AC 2015; 104:227-37. [PMID: 26431353 DOI: 10.1002/bdrb.21163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 09/08/2015] [Indexed: 11/08/2022]
Abstract
Female mice were exposed maternally to piperonyl butoxide (PBO) through diet to provide dietary levels of 0% (control), 0.01%, 0.03%, and 0.09% during gestation and lactation periods, and selected reproductive and neurobehavioral parameters were measured in the F1 generation. There was no adverse effect of PBO on litter size, litter weight, or sex ratio at birth. The average body weights of male offspring decreased significantly in dose-related manners on postnatal days (PNDs) 0, 4, 7, and 14 (p = 0.0019, 0.0096, 0.033, and 0.038, respectively) during the lactation period. In female offspring, the average body weights decreased in dose-related manners on PNDs 0, 4, 7, and 14 (p = 0.0027, 0.0104, 0.0193, and 0.0062, respectively). The survival of dams slightly decreased (p = 0.0209) in the high-dose group during the lactation period. With respect to behavioral developmental parameters, surface righting on PND 7 of male and female offspring was delayed significantly in a dose-related manner (p < 0.001 in each). Swimming direction on PND 7 of male offspring was delayed significantly in a dose-related manner (p < 0.01), and for female offspring it was delayed significantly in the high-dose group (p < 0.05). Swimming head angle on PND 7 of male offspring was delayed significantly in a dose-related manner (p < 0.05). Spontaneous behavior examination in males indicated that rearing increased in the high-dose group in the F1 generation. The dose levels of PBO in the present study produced some adverse effects in neurobehavioral parameters in mice.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
| | - Akiko Inomata
- Division of Toxicology, Tokyo Metropolitan Institute of Public Health, Shinjuku-ku, Tokyo, Japan
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Tanaka T, Ogata A, Inomata A, Nakae D. Effects of different types of bedding materials on behavioral development in laboratory CD1 mice (Mus musculus). ACTA ACUST UNITED AC 2014; 101:393-401. [PMID: 25283888 DOI: 10.1002/bdrb.21129] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 08/18/2014] [Indexed: 02/05/2023]
Abstract
Male and female mice were housed in cages, containing different types of bedding materials (wood flakes or pulp chips), from 4 weeks of age in the F0 generation to 11 weeks of age in the F1 generation; selected reproductive and neurobehavioral parameters were measured in the F1 generation. There were no adverse effects of bedding materials on litter size, litter weight, or sex ratios at the time of birth. With regard to behavioral development parameters, bedding materials did not influence any variables (p > 0.05) in both sexes. Regarding exploratory behavior in the F1 generation, number of defecations significantly varied (p = 0.0203) with bedding materials in males at 3 weeks of age. The number of horizontal activities also significantly varied (p = 0.0342) with bedding materials in males at 8 weeks of age. Multiple-T water maze performance data indicated that the time required was significantly shortened across trials in pulp chips group than wood flakes group in males (p = 0.0211). Moreover, all spontaneous behavior variables in males significantly varied with bedding materials, particularly the average time of movement was significantly different (p = 0.0037) in distance between parallel lines of types of bedding materials in the F1 generation. The present study shows that bedding materials influence the neurobehavioral development in mice.
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Affiliation(s)
- Toyohito Tanaka
- Division of Toxicology, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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