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Quintana DS, Glaser BD, Kang H, Kildal ESM, Audunsdottir K, Sartorius AM, Barth C. The interplay of oxytocin and sex hormones. Neurosci Biobehav Rev 2024; 163:105765. [PMID: 38885888 DOI: 10.1016/j.neubiorev.2024.105765] [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: 01/23/2024] [Revised: 05/31/2024] [Accepted: 06/08/2024] [Indexed: 06/20/2024]
Abstract
The neuropeptide oxytocin has historically been associated with reproduction and maternal behavior. However, more recent research has uncovered that oxytocin has a much wider range of roles in physiology and behavior. Despite the excitement surrounding potential therapeutical applications of intranasally administered oxytocin, the results of these intervention studies have been inconsistent. Various reasons for these mixed results have been proposed, which tend to focus on methodological issues, such as study design. While methodological issues are certainly important, emerging evidence suggests that the interaction between oxytocin and sex hormones may also account for these varied findings. To better understand the purpose and function of the interaction of oxytocin with sex hormones, with a focus on estrogens, progesterone, and testosterone, we conducted a comprehensive thematic review via four perspectives: evolutionary, developmental, mechanistic, and survival. Altogether, this synergistic approach highlights the critical function of sex hormone activity for accomplishing the diverse roles of oxytocin via the modulation of oxytocin release and oxytocin receptor activity, which is also likely to contribute to the heterogeneity of outcomes after oxytocin administration.
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Affiliation(s)
- Daniel S Quintana
- Department of Psychology, University of Oslo, Oslo, Norway; KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway; NevSom, Department of Rare Disorders, Oslo University Hospital, Oslo, Norway.
| | - Bernt D Glaser
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Heemin Kang
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Emilie S M Kildal
- KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Psychiatry, Lovisenberg Diakonale Sykehus, Oslo, Norway
| | - Kristin Audunsdottir
- Department of Psychology, University of Oslo, Oslo, Norway; KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway
| | | | - Claudia Barth
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
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Chen W, Wang X, Wan S, Yang Y, Zhang Y, Xu Z, Zhao J, Mi C, Zhang H. Dichloroacetic acid and trichloroacetic acid as disinfection by-products in drinking water are endocrine-disrupting chemicals. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133035. [PMID: 38266585 DOI: 10.1016/j.jhazmat.2023.133035] [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: 08/04/2023] [Revised: 11/02/2023] [Accepted: 11/16/2023] [Indexed: 01/26/2024]
Abstract
Dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) are two typical non-volatile disinfection by-products (DBPs) found in drinking water. Increasing evidence has demonstrated that they show reproductive toxicity. However, whether they might have endocrine disrupting properties remains largely unknown. To discover this, we treated male mice or pregnant mice with 0, 1-, 102-, 103-, 104-, or 5 × 104-fold maximal concentration level (MCL) of DCAA or TCAA in drinking water. In male mice, the levels of testosterone in serum and androgen receptor (AR) in testis were declined with ≥ 103-fold MCL of DCAA (26.4 mg/kg/d) or TCAA (52.7 mg/kg/d). In pregnant mice, miscarriage rates were increased with ≥ 104-fold MCL of DCAA (264 mg/kg/d) or ≥ 103-fold MCL of TCAA. The levels of FSH in serum were increased and those of estradiol and progesterone were reduced with ≥ 103-fold MCL of DCAA or TCAA. The protein levels of estrogen receptors (ERα and ERβ) in ovary were reduced with ≥ 102-fold MCL of DCAA (2.64 mg/kg/d) or TCAA (5.27 mg/kg/d). Exposure to some certain fold MCL of DCAA or TCAA also altered the protein levels of ERα and ERβ in uterus and placenta. Exposure to 5 × 104-fold MCL of both DCAA and TCAA showed the combined effects. Therefore, both DCAA and TCAA could be considered as novel reproductive endocrine disrupting chemicals, which might be helpful for further assessment of the toxicological effects of DCAA and TCAA and the awareness of reproductive endocrine disrupting properties caused by DCAA and TCAA in drinking water.
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Affiliation(s)
- Weina Chen
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Xiaoqing Wang
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Shukun Wan
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Yang Yang
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Ying Zhang
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Zhongyan Xu
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Jingsong Zhao
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Chenyang Mi
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Huidong Zhang
- Research Center for Environment and Female Reproductive Health, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China.
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Cantini D, Choleris E, Kavaliers M. Neurobiology of Pathogen Avoidance and Mate Choice: Current and Future Directions. Animals (Basel) 2024; 14:296. [PMID: 38254465 PMCID: PMC10812398 DOI: 10.3390/ani14020296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Animals are under constant threat of parasitic infection. This has influenced the evolution of social behaviour and has strong implications for sexual selection and mate choice. Animals assess the infection status of conspecifics based on various sensory cues, with odours/chemical signals and the olfactory system playing a particularly important role. The detection of chemical cues and subsequent processing of the infection threat that they pose facilitates the expression of disgust, fear, anxiety, and adaptive avoidance behaviours. In this selective review, drawing primarily from rodent studies, the neurobiological mechanisms underlying the detection and assessment of infection status and their relations to mate choice are briefly considered. Firstly, we offer a brief overview of the aspects of mate choice that are relevant to pathogen avoidance. Then, we specifically focus on the olfactory detection of and responses to conspecific cues of parasitic infection, followed by a brief overview of the neurobiological systems underlying the elicitation of disgust and the expression of avoidance of the pathogen threat. Throughout, we focus on current findings and provide suggestions for future directions and research.
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Affiliation(s)
- Dante Cantini
- Department of Psychology, College of Social and Applied Human Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Elena Choleris
- Department of Psychology, College of Social and Applied Human Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Martin Kavaliers
- Department of Psychology, College of Social and Applied Human Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Department of Psychology, Western University, London, ON N6A 3K7, Canada
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Liu H, Yang Z, He Y, Yang Q, Tang Q, Yang Z, Qi J, Hu Q, Bai L, Li L. Metabolic Profiling Reveals That the Olfactory Cues in the Duck Uropygial Gland Potentially Act as Sex Pheromones. Animals (Basel) 2022; 12:ani12040413. [PMID: 35203121 PMCID: PMC8868514 DOI: 10.3390/ani12040413] [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: 12/06/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary For birds, the uropygial gland is a special organ. We believe that its secretion can be used as a pheromone between the sexes to play a role in mate selection and mating. Therefore, we studied the chemical composition of duck uropygial gland secretions and the differences between males and females. After a series of screenings, 24 different volatile metabolites were obtained in our experiment. On this basis, five extremely significant volatile metabolites were screened out—significantly more males than females. The results show that these volatile substances are potential sex pheromone substances, which may be the critical olfactory clues for birds to choose mates. Our results lay the foundation for further research on whether uropygial gland secretion affects duck reproduction and production. Abstract The exchange of information between animals is crucial for maintaining social relations, individual survival, and reproduction, etc. The uropygial gland is a particular secretion gland found in birds. We speculated that uropygial gland secretions might act as a chemical signal responsible for sexual communication. We employed non-targeted metabolomic technology through liquid chromatography and mass spectrometry (LC-MS) to identifying duck uropygial gland secretions. We observed 11,311 and 14,321 chemical substances in the uropygial gland secretion for positive and negative ion modes, respectively. Based on their relative contents, principal component analysis (PCA) showed that gender significantly affects the metabolite composition of the duck uropygial gland. A total of 3831 and 4510 differential metabolites were further identified between the two sexes at the positive and negative ion modes, respectively. Of them, 139 differential metabolites were finally annotated. Among the 80 differential metabolites that reached an extremely significant difference (p < 0.01), we identified 24 volatile substances. Moreover, we further demonstrated that five kinds of volatile substances are highly repeatable in all testing ducks, including picolinic acid, 3-Hydroxypicolinic acid, indoleacetaldehyde, 3-hydroxymethylglutaric acid, and 3-methyl-2-oxovaleric acid. All these substances are significantly higher in males than in females, and their functions are involved in the reproduction processes of birds. Our data implied that these volatile substances act as sex pheromones and may be crucial olfactory clues for mate selection between birds. Our findings laid the foundation for future research on whether uropygial gland secretion can affect ducks’ reproduction and production.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Liang Li
- Correspondence: ; Tel.: +86-139-8160-4574
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Assessment of Biostimulation Methods Based on Chemical Communication in Female Doe Reproduction. Animals (Basel) 2022; 12:ani12030308. [PMID: 35158632 PMCID: PMC8833788 DOI: 10.3390/ani12030308] [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: 12/31/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 02/01/2023] Open
Abstract
Biostimulation is an animal management practice that helps improve reproductive parameters by modulating animal sensory systems. Chemical signals, mostly known as pheromones, have a great potential in this regard. This study was conducted to determine the influence of short-term female rabbit exposure to different conditions, mainly pheromone-mediated, on reproductive parameters of inseminated does. Groups of 60 females/each were exposed to (1) female urine, (2) male urine, (3) seminal plasma and (4) female–female (F–F) separated, just before artificial insemination, and compared to a ‘golden method’ female–female interaction. The following reproductive parameters were analyzed for each group: receptivity (vulvar color), fertility (kindling rate), prolificacy and number of born alive and dead kits/litter. Our results showed that the biostimulation methods employed in this experiment did not significantly improve any of the analyzed parameters. However, female doe exposure to urine, especially to male urine, showed no significant higher fertility values (95.4%) when compared to the rest of the experimental conditions (on average 92.4%). Female–female interaction before artificial insemination, which is a common practice in rabbit farms, showed similar results as not establishing social interaction (F–F separated), which suggests that F–F interaction could be replaced by F–F separated, therefore avoiding unnecessary animal management and time cost. On the other hand, fertility ranges were lower for animals with a pale vulvar color whereas no differences were noticed among the other three colors which measure receptivity (pink, red, purple), thus suggesting that these three colors could be grouped together. Future studies should aim at determining potential chemical cues/pheromones released through bodily secretions that influence reproduction in rabbits, therefore contributing to animal welfare and to a natural image of animal production.
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Greville LJS, Bueno LM, Pollock T, Faure PA. Quantification of Urinary Sex Steroids in the Big Brown Bat ( Eptesicus fuscus). Physiol Biochem Zool 2021; 95:22-34. [PMID: 34843427 DOI: 10.1086/717896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractBats (order Chiroptera) are the second largest group of mammals, diverging ~52.5 million years ago. Many species exhibit an unusual reproductive cycle and extreme longevity without reproductive senescence, yet steroid profiles exist for few bats. Big brown bats (Eptesicus fuscus) are temperate insectivores found throughout North America. They mate promiscuously in fall, store sperm during winter hibernation, and have delayed ovulation and fertilization in spring. Here, we report the first urinary steroid profile in bats by quantifying 17β-estradiol (E2) in captive male and female E. fuscus across their reproductive cycle. Male bats had higher urinary E2 levels than females, and adults had higher levels than yearlings following creatinine adjustment for hydration. In nonpregnant females, several seasonal differences in creatinine-adjusted and unadjusted urinary E2 levels were observed. Urinary E2 was higher in males than females in winter for both conditions and in autumn for creatinine-adjusted levels. We quantified progesterone (P4) in a subset of females. In nonpregnant females, urinary P4 was constant across seasons except for unadjusted levels, which were highest in the summer. In pregnant females, urinary E2 and P4 levels peaked beginning ~20 d before parturition, with both steroids returning to baseline in the following weeks. Knowing how urinary steroid levels fluctuate with age and sex and across the annual season is key to understanding reproductive cycling in bats. Our research furthers the potential for bats as a model for medical reproductive research. Moreover, it complements previous studies on the potential role of steroids in primer pheromonal effects in bats.
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Gileadi TE, Swamy AK, Hore Z, Horswell S, Ellegood J, Mohan C, Mizuno K, Lundebye AK, Giese KP, Stockinger B, Hogstrand C, Lerch JP, Fernandes C, Basson MA. Effects of Low-Dose Gestational TCDD Exposure on Behavior and on Hippocampal Neuron Morphology and Gene Expression in Mice. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:57002. [PMID: 33956508 PMCID: PMC8101924 DOI: 10.1289/ehp7352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 02/19/2021] [Accepted: 03/29/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a persistent and toxic environmental pollutant. Gestational exposure to TCDD has been linked to cognitive and motor deficits, and increased incidence of autism spectrum disorder (ASD) traits in children. Most animal studies of these neurodevelopmental effects involve acute TCDD exposure, which does not model typical exposure in humans. OBJECTIVES The aim of the study was to establish a dietary low-dose gestational TCDD exposure protocol and performed an initial characterization of the effects on offspring behavior, neurodevelopmental phenotypes, and gene expression. METHODS Throughout gestation, pregnant C57BL/6J mice were fed a diet containing a low dose of TCDD (9 ng TCDD/kg body weight per day) or a control diet. The offspring were tested in a battery of behavioral tests, and structural brain alterations were investigated by magnetic resonance imaging. The dendritic morphology of pyramidal neurons in the hippocampal Cornu Ammonis (CA)1 area was analyzed. RNA sequencing was performed on hippocampi of postnatal day 14 TCDD-exposed and control offspring. RESULTS TCDD-exposed females displayed subtle deficits in motor coordination and reversal learning. Volumetric difference between diet groups were observed in regions of the hippocampal formation, mammillary bodies, and cerebellum, alongside higher dendritic arborization of pyramidal neurons in the hippocampal CA1 region of TCDD-exposed females. RNA-seq analysis identified 405 differentially expressed genes in the hippocampus, enriched for genes with functions in regulation of microtubules, axon guidance, extracellular matrix, and genes regulated by SMAD3. DISCUSSION Exposure to 9 ng TCDD/kg body weight per day throughout gestation was sufficient to cause specific behavioral and structural brain phenotypes in offspring. Our data suggest that alterations in SMAD3-regulated microtubule polymerization in the developing postnatal hippocampus may lead to an abnormal morphology of neuronal dendrites that persists into adulthood. These findings show that environmental low-dose gestational exposure to TCDD can have significant, long-term impacts on brain development and function. https://doi.org/10.1289/EHP7352.
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Affiliation(s)
- Talia E. Gileadi
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, UK
| | - Abhyuday K. Swamy
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, UK
| | - Zoe Hore
- Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Stuart Horswell
- Department of Bioinformatics and Biostatistics, The Francis Crick Institute, London, UK
| | - Jacob Ellegood
- Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Conor Mohan
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, UK
| | - Keiko Mizuno
- Department of Basic and Clinical Neuroscience, King’s College London, London, UK
| | | | - K. Peter Giese
- Department of Basic and Clinical Neuroscience, King’s College London, London, UK
| | | | | | - Jason P. Lerch
- Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK
| | - Cathy Fernandes
- Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
- MRC Centre for Neurodevelopmental Disorders, King’s College London, London, UK
| | - M. Albert Basson
- Centre for Craniofacial and Regenerative Biology, King’s College London, London, UK
- MRC Centre for Neurodevelopmental Disorders, King’s College London, London, UK
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Zipple MN, Roberts EK, Alberts SC, Beehner JC. The Bruce effect should be defined by function, not mechanism: comments on ‘How to escape male infanticide: mechanisms for avoiding or terminating pregnancy in mammals’. Mamm Rev 2021. [DOI: 10.1111/mam.12250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Eila K. Roberts
- Department of Integrative Biology Michigan State University East Lansing MI48824USA
| | - Susan C. Alberts
- Department of Biology Duke University Durham NC27708USA
- Department of Evolutionary Anthropology Duke University Durham NC27708USA
| | - Jacinta C. Beehner
- Departments of Psychology and Anthropology University of Michigan Ann Arbor MI48109USA
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Lu A, Feder JA, Snyder-Mackler N, Bergman TJ, Beehner JC. Male-Mediated Maturation in Wild Geladas. Curr Biol 2021; 31:214-219.e2. [DOI: 10.1016/j.cub.2020.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/25/2020] [Accepted: 10/01/2020] [Indexed: 01/18/2023]
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Whittaker DJ, Hagelin JC. Female-Based Patterns and Social Function in Avian Chemical Communication. J Chem Ecol 2020; 47:43-62. [PMID: 33103230 DOI: 10.1007/s10886-020-01230-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/18/2020] [Accepted: 10/20/2020] [Indexed: 11/25/2022]
Abstract
Much of the growing interest in avian chemical signals has focused on the role of kin recognition or mate attraction, often with an emphasis on males, with uropygial gland secretions perhaps providing information about an individual's identity and quality. Yet, data collected to date suggest sexual dimorphism in uropygial glands and secretions are often emphasized in female, rather than in male birds. That is, when a sexual difference occurs (often during the breeding season only), it is the female that typically exhibits one of three patterns: (1) a larger uropygial gland, (2) a greater abundance of volatile or semi-volatile preen oil compounds and/or (3) greater diversity of preen oil compounds or associated microbes. These patterns fit a majority of birds studied to date (23 of 30 chemically dimorphic species exhibit a female emphasis). Multiple species that do not fit are confounded by a lack of data for seasonal effects or proper quantitative measures of chemical compounds. We propose several social functions for these secretions in female-based patterns, similar to those reported in mammals, but which are largely unstudied in birds. These include: (1) intersexual advertisement of female receptivity or quality, including priming effects on male physiology, (2) intrasexual competition, including scent marking and reproductive suppression or (3) parental behaviors, such as parent-offspring recognition and chemical protection of eggs and nestlings. Revisiting the gaps of chemical studies to quantify the existence of female social chemosignals and any fitness benefit(s) during breeding are potentially fruitful but overlooked areas of future research.
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Affiliation(s)
- Danielle J Whittaker
- BEACON Center for the Study of Evolution in Action, Michigan State University, East Lansing, MI, 48824, USA.
| | - Julie C Hagelin
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, 99775, USA
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Marques GL, Rocha LR, Prete MC, Gorla FA, Moscardi dos Santos D, Segatelli MG, Teixeira Tarley CR. Development of Electrochemical Platform Based on Molecularly Imprinted Poly(methacrylic acid) Grafted on Iniferter‐modified Carbon Nanotubes for 17β‐Estradiol Determination in Water Samples. ELECTROANAL 2020. [DOI: 10.1002/elan.202060270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gabriel Lopes Marques
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
| | - Luana Rianne Rocha
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
| | - Maiyara Carolyne Prete
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
| | - Felipe Augusto Gorla
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
- Campus Assis Chateaubriand Instituto Federal do Paraná Avenida Cívica 475, Centro Cívico Assis Chateaubriand PR, CEP 85935–000 Brazil
| | - Dayana Moscardi dos Santos
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
| | - Mariana Gava Segatelli
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
| | - César Ricardo Teixeira Tarley
- Departamento de Química Universidade Estadual de Londrina Rod. Celso Garcia Cid, PR 445 Km 380, Campus Universitário Londrina PR, CEP 86051-990 Brazil
- Instituto Nacional de Ciência e Tecnologia (INCT) de Bioanalítica Universidade Estadual de Campinas (UNICAMP) Instituto de Química Departamento de Química Analítica, Cidade Universitária Zeferino Vaz s/n, CEP 13083–970 Campinas SP Brazil
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Rozenkrantz L, Weissgross R, Weiss T, Ravreby I, Frumin I, Shushan S, Gorodisky L, Reshef N, Holzman Y, Pinchover L, Endevelt-Shapira Y, Mishor E, Soroka T, Finkel M, Tagania L, Ravia A, Perl O, Furman-Haran E, Carp H, Sobel N. Unexplained repeated pregnancy loss is associated with altered perceptual and brain responses to men's body-odor. eLife 2020; 9:e55305. [PMID: 32988456 PMCID: PMC7524551 DOI: 10.7554/elife.55305] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 08/18/2020] [Indexed: 01/24/2023] Open
Abstract
Mammalian olfaction and reproduction are tightly linked, a link less explored in humans. Here, we asked whether human unexplained repeated pregnancy loss (uRPL) is associated with altered olfaction, and particularly altered olfactory responses to body-odor. We found that whereas most women with uRPL could identify the body-odor of their spouse, most control women could not. Moreover, women with uRPL rated the perceptual attributes of men's body-odor differently from controls. These pronounced differences were accompanied by an only modest albeit significant advantage in ordinary, non-body-odor-related olfaction in uRPL. Next, using structural and functional brain imaging, we found that in comparison to controls, most women with uRPL had smaller olfactory bulbs, yet increased hypothalamic response in association with men's body-odor. These findings combine to suggest altered olfactory perceptual and brain responses in women experiencing uRPL, particularly in relation to men's body-odor. Whether this link has any causal aspects to it remains to be explored.
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Affiliation(s)
- Liron Rozenkrantz
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Reut Weissgross
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Tali Weiss
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Inbal Ravreby
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Idan Frumin
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Sagit Shushan
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
- Department of Otolaryngology & Head and Neck Surgery, Edith Wolfson Medical Center, Holon, Israel
| | - Lior Gorodisky
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Netta Reshef
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Yael Holzman
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Liron Pinchover
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Yaara Endevelt-Shapira
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Eva Mishor
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Timna Soroka
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Maya Finkel
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Liav Tagania
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Aharon Ravia
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Ofer Perl
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
| | - Edna Furman-Haran
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
- Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Howard Carp
- Department of Obstetrics & Gynecology, Sheba Medical Center, Tel Hashomer, Israel
| | - Noam Sobel
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- The Azrieli National Institute for Human Brain Imaging and Research, Rehovot, Israel
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13
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Bartoš L, Dušek A, Bartošová J, Pluháček J, Putman R. How to escape male infanticide: mechanisms for avoiding or terminating pregnancy in mammals. Mamm Rev 2020. [DOI: 10.1111/mam.12219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Luděk Bartoš
- Department of Ethology Institute of Animal Science Praha Uhříněves10400 Czech Republic
- Department of Ethology and Companion Animal Science Faculty of Agrobiology, Food and Natural Resources Czech University of Life Sciences in Prague Praha 6‐Suchdol16500 Czech Republic
| | - Adam Dušek
- Department of Ethology Institute of Animal Science Praha Uhříněves10400 Czech Republic
| | - Jitka Bartošová
- Department of Ethology Institute of Animal Science Praha Uhříněves10400 Czech Republic
- Department of Ethology and Companion Animal Science Faculty of Agrobiology, Food and Natural Resources Czech University of Life Sciences in Prague Praha 6‐Suchdol16500 Czech Republic
| | - Jan Pluháček
- Department of Ethology Institute of Animal Science Praha Uhříněves10400 Czech Republic
| | - Rory Putman
- Institute of Biodiversity, Animal Health and Comparative Medicine University of Glasgow Glasgow UK
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14
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Mandal TK, Parvin N, Joo SW, Roy P. Risk Assessment of Cosmetics Using Triclosan on Future Generation's Germ Cell Maturation via Lactating Mother Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17041143. [PMID: 32053938 PMCID: PMC7068353 DOI: 10.3390/ijerph17041143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/23/2022]
Abstract
Triclosan (TCS) is a widely used chemical in personal care and household products as an antimicrobial agent but some studies have reported it as being estrogenic. We investigated the influence of TCS on the male reproductive system of postnatal pups. Lactating mother rats (Rattus norvegicus) were given daily doses of 0 mg, 3 mg, and 5 mg/kg/day from the day of delivery until 28 days, equivalent to their natural breastfeeding duration. At 28 days, the male pups of all three groups were sacrificed and their biochemical parameters evaluated. TCS-treated pups had decreased mRNA levels for 3β hydro-hydroxysteroid dehydrogenases (3βHSD), OCT3/4, and androgen receptor (AR) (p < 0.05). The higher dose (5 mg/kg/day) male pups exhibited more significantly affected germ cell maturation and decreased body weight. In summary, TCS-treated lactating mothers passed the deleterious effects to their untreated male pups as exhibited by reduced androgens synthesis and subsequently decreased sperm count.
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Affiliation(s)
- Tapas K. Mandal
- Department of Biotechnology, Indian Institute of Technology, Roorkee 247667, India; (T.K.M.); (N.P.)
- School of Mechanical Engineering and IT, Yeungnam University, Gyeongsan 38541, Korea
| | - Nargish Parvin
- Department of Biotechnology, Indian Institute of Technology, Roorkee 247667, India; (T.K.M.); (N.P.)
| | - Sang Woo Joo
- School of Mechanical Engineering and IT, Yeungnam University, Gyeongsan 38541, Korea
- Correspondence: (S.W.J.); (P.R.)
| | - Partha Roy
- Department of Biotechnology, Indian Institute of Technology, Roorkee 247667, India; (T.K.M.); (N.P.)
- Correspondence: (S.W.J.); (P.R.)
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15
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Greville LJ, Pollock T, Faure PA, deCatanzaro D. Seasonal transfer and quantification of urinary estradiol in the big brown bat (Eptesicus fuscus). Gen Comp Endocrinol 2020; 286:113321. [PMID: 31733210 DOI: 10.1016/j.ygcen.2019.113321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/24/2019] [Accepted: 11/12/2019] [Indexed: 10/25/2022]
Abstract
Growing evidence shows that sex steroids not only act within the individual whose glands produce them; they can also act on proximate conspecifics. Previous studies show that exogenous 17β-estradiol (E2) can be absorbed both nasally and percutaneously, arriving in blood, neural, reproductive, and peripheral tissues. When male bats were injected with radiolabeled E2 (3H-E2) and housed with females during the mating season, radioactivity was reliably measured in the females' tissues. The present study was designed to compare E2 transfer from male to female bats at three time points in the annual reproductive cycle: spring (ovulation and fertilization), summer (maternal season), and autumn (mating season). Pairs of mature female bats were housed with a mature 3H-E2-treated male (50 μCi). Following 48 h of communal housing, radioactivity was measured in the tissues of female bats. Higher levels of radioactivity were present in the uterus and other tissues during the spring and autumn seasons compared to the summer season. We also measured natural levels of bioactive, unconjugated E2 in the urine of male bats using enzyme immunoassays, and found that it was present in all three seasons but at lower levels during the summer. Male-excreted E2 could transfer to females within the close confines of a roost, potentially influencing their reproductive physiology and behavior. These results suggest increased E2 transfer coincides with female reproduction, with urine as a likely vector. We suggest that sex steroid transfer among interacting individuals may explain several mammalian phenomena historically viewed as "pheromonal".
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Affiliation(s)
- Lucas J Greville
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Tyler Pollock
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Paul A Faure
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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16
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Goblet C, Lewis B, Jacobsen V, Jarboe M, Silva D, Penfold L, Newell-Fugate AE. Exposure of managed red river hogs (Potamochoerus porcus) to urine from males stimulates estrous cycling and modulates fecal sex steroid metabolites in males and females. Gen Comp Endocrinol 2020; 285:113262. [PMID: 31454496 DOI: 10.1016/j.ygcen.2019.113262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 08/16/2019] [Accepted: 08/23/2019] [Indexed: 01/10/2023]
Abstract
For unknown reasons, reproductive success varies among zoos in managed red river hogs. In response to urine exposure from novel conspecifics, we hypothesized that males with low libido would exhibit increased concentrations of testosterone metabolites and that acyclic and/or non-breeding females would be induced to cycle or cycle more regularly. Estrous cycle length and progesterone metabolites in same-sex housed females were compared prior to and following exposure to novel red river hog male urine. Male testosterone metabolites and female progesterone metabolites as well as estrous cycle length were compared among: 1) proven-breeder females and males; 2) non-breeding females newly paired with novel males; 3) non-breeding females and males exposed to urine from novel females and males. Fecal samples were collected 3-5 times per week for eight to 12 months, lyophilized, extracted, and assayed for progesterone and testosterone metabolites with validated enzyme immunoassays. Introduction of female urine resulted in an increased number of estrous cycles per female per month, and decreased luteal and increased follicular progesterone metabolites in females. Introduction of male urine resulted in an increase in testosterone metabolites in males. Average progesterone metabolites for pregnant proven-breeder females were more than double that for pregnant females newly paired to novel males. An interaction between season and treatment group, as well as the acyclicity of females from July through November irrespective of treatment group, suggest that season may confound and warrant judicious interpretation of the results. Additionally, females housed with pregnant females were either acyclic or did not carry their pregnancies to term, indicating that reproductive suppression may occur in females. In conclusion, urine may be a cost-effective and efficient means to manipulate estrous cycling in managed red river hogs. Furthermore, careful consideration of the number of females in a managed herd is recommended to avoid reproductive suppression.
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Affiliation(s)
- Camille Goblet
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Bryce Lewis
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Victoria Jacobsen
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Monica Jarboe
- College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA
| | - Dameriss Silva
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Linda Penfold
- South-East Zoo Alliance for Conservation & Reproduction, Yulee, FL 32097, USA
| | - Annie E Newell-Fugate
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA.
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17
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Wong A, Santos AM, Fava EL, Fatibello-Filho O, Sotomayor MDPT. Voltammetric determination of 17β-estradiol in different matrices using a screen-printed sensor modified with CuPc, Printex 6L carbon and Nafion film. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Zipple MN, Roberts EK, Alberts SC, Beehner JC. Male-mediated prenatal loss: Functions and mechanisms. Evol Anthropol 2019; 28:114-125. [PMID: 30953577 PMCID: PMC6548597 DOI: 10.1002/evan.21776] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 12/12/2018] [Accepted: 02/26/2019] [Indexed: 12/17/2022]
Abstract
Sexually selected infanticide has been the subject of intense empirical and theoretical study for decades; a related phenomenon, male-mediated prenatal loss, has received much less attention in evolutionary studies. Male-mediated prenatal loss occurs when inseminated or pregnant females terminate reproductive effort following exposure to a nonsire male, either through implantation failure or pregnancy termination. Male-mediated prenatal loss encompasses two sub-phenomena: sexually selected feticide and the Bruce effect. In this review, we provide a framework that explains the relationship between feticide and the Bruce effect and describes what is known about the proximate and ultimate mechanisms involved in each. Using a simple model, we demonstrate that male-mediated prenatal loss can provide greater reproductive benefits to males than infanticide. We therefore suggest that, compared to infanticide, male-mediated prenatal loss may be more prevalent in mammalian species and may have played a greater role in their social evolution than has previously been documented.
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Affiliation(s)
| | - Eila K Roberts
- Department of Integrative Biology, Michigan State University, East Lansing, Michigan
| | - Susan C Alberts
- Department of Biology, Duke University, Durham, North Carolina
- Department of Evolutionary Anthropology, Duke University, Durham, North Carolina
- Institute of Primate Research, National Museums of Kenya, Nairobi, Kenya
| | - Jacinta C Beehner
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
- Department of Anthropology, University of Michigan, Ann Arbor, Michigan
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19
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Nrg1 deficiency modulates the behavioural effects of prenatal stress in mice. Prog Neuropsychopharmacol Biol Psychiatry 2019; 88:86-95. [PMID: 29964074 DOI: 10.1016/j.pnpbp.2018.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 06/21/2018] [Accepted: 06/23/2018] [Indexed: 11/23/2022]
Abstract
Little is known about the exact genes that confer vulnerability or resilience to environmental stressors during early neurodevelopment. Partial genetic deletion of neuregulin 1 (Nrg1) moderates the neurobehavioural effects of stressors applied in adolescence and adulthood, however, no study has yet examined its impact on prenatal stress. Here we examined whether Nrg1 deficiency in mice modulated the impact of prenatal stress on various behaviours in adulthood. Male heterozygous Nrg1 mice were mated with wild-type female mice who then underwent daily restraint stress from days 13 to 19 of gestation. Surprisingly, prenatal stress had overall beneficial effects by facilitating sensorimotor gating, increasing sociability, decreasing depressive-like behaviour, and improving spatial memory in adulthood. Such benefits were not due to any increase in maternal care, as prenatal stress decreased nurturing of the offspring. Nrg1 deficiency negated the beneficial behavioural effects of prenatal stress on all measures except sociability. However, Nrg1 deficiency interacted with prenatal stress to trigger locomotor hyperactivity. Nrg1 deficiency, prenatal stress or their combination failed to alter acute stress-induced plasma corticosterone concentrations. Collectively these results demonstrate that Nrg1 deficiency moderates the effects of prenatal stress on adult behaviour, but it does so in a complex, domain-specific fashion.
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20
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Ye Y, Liu CZ, Wang R, Zhang YW, Zhang B, Cui Y, Liu XW, Huang SM. A new animal model for menopausal transition: combination of ovariectomy and empty bottle stimulation. Gynecol Endocrinol 2018; 34:840-844. [PMID: 29546795 DOI: 10.1080/09513590.2018.1451835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Previous small animal models for menopausal transition are mainly performed to mimic the biochemical changes of patients with menopausal transition. The psychological symptoms in animal models are often overlooked. To mimic clinical situation, we developed a new mouse model of menopausal transition: the combination of bilateral ovariectomy (OVX) and empty bottle stimulation (EBS). After OVX and 21 days of EBS, behavioral test and pentobarbital-induced sleep test were carried out. Then all the animals were euthanized for further investigations. Compared with the control group, the combination of OVX and EBS group (OVX + EBS) showed higher bodyweight, lower organ index of uteri, and lower concentrations of serum estradiol. In addition, behavioral manifestations, sleep quality, and morphologic features in OVX + EBS group showed significant differences compared with the control group. OVX alone or EBS alone failed to include all the changes of OVX + EBS group. These findings indicate ovariectomy or EBS alone could not well mimic the symptoms of menopausal transition. The combination of bilateral ovariectomy and EBS offers an easy and repeatable method for building comprehensive menopausal transition model in mice.
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Affiliation(s)
- Yang Ye
- a Department of Neuroscience , Institute for Chinese Medicine, Heilongjiang University of Chinese Medicine , Harbin , China
- b Graduate School , Beijing University of Chinese Medicine , Beijing , China
| | - Cun-Zhi Liu
- c Department of Acupuncture and Moxibustion , Dongfang Hospital, Beijing University of Chinese Medicine , Beijing , China
| | - Rui Wang
- d Research Center of Medical Science , Qiqihar Medical University , Qiqihar , China
| | - Yu-Wei Zhang
- a Department of Neuroscience , Institute for Chinese Medicine, Heilongjiang University of Chinese Medicine , Harbin , China
| | - Bo Zhang
- a Department of Neuroscience , Institute for Chinese Medicine, Heilongjiang University of Chinese Medicine , Harbin , China
| | - Yu Cui
- e Department of Veterinary Medicine , College of Agriculture, Hainan University , Haikou , China
| | - Xue-Wei Liu
- d Research Center of Medical Science , Qiqihar Medical University , Qiqihar , China
| | - Shu-Ming Huang
- a Department of Neuroscience , Institute for Chinese Medicine, Heilongjiang University of Chinese Medicine , Harbin , China
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21
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Male Scent Gland Signals Mating Status in Greater Spear-Nosed Bats, Phyllostomus hastatus. J Chem Ecol 2018; 44:975-986. [DOI: 10.1007/s10886-018-1003-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 12/24/2022]
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22
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Pollock T, Greville LJ, Weaver RE, Radenovic M, deCatanzaro D. Bisphenol S modulates concentrations of bisphenol A and oestradiol in female and male mice. Xenobiotica 2018; 49:540-548. [DOI: 10.1080/00498254.2018.1480818] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tyler Pollock
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Lucas J. Greville
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Rachel E. Weaver
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Marija Radenovic
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Denys deCatanzaro
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, Canada
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23
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Poly(3,6-diamino-9-ethylcarbazole) based molecularly imprinted polymer sensor for ultra-sensitive and selective detection of 17-β-estradiol in biological fluids. Biosens Bioelectron 2018; 104:79-86. [DOI: 10.1016/j.bios.2018.01.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 01/01/2018] [Accepted: 01/03/2018] [Indexed: 01/19/2023]
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24
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Wang Y, Luo J, Liu J, Li X, Kong Z, Jin H, Cai X. Electrochemical integrated paper-based immunosensor modified with multi-walled carbon nanotubes nanocomposites for point-of-care testing of 17β-estradiol. Biosens Bioelectron 2018; 107:47-53. [PMID: 29428366 DOI: 10.1016/j.bios.2018.02.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 02/02/2018] [Accepted: 02/02/2018] [Indexed: 10/18/2022]
Abstract
17β-estradiol (17β-E2) plays a critical role in regulating reproduction in human, there is therefore an urgent need to detect it sensitively and precisely in a cost-effective and easy method. In this paper, a label-free integrated microfluidic paper-based analytical device was developed for highly sensitive electrochemical detection of 17β-E2. The microfluidic channel of the paper-based sensor was fabricated with wax printing and the three electrodes, including working, counter and reference electrode were screen-printed. Multi-walled carbon nanotubes (MWCNTs)/ thionine (THI)/ gold nanoparticles (AuNPs) Nano composites were synthesized and coated on screen-printed working electrode (SPWE) for the immobilization of anti-E2. In this electro-chemical system of paper-based immunoassay, THI molecules serving as an electrochemical mediator while MWCNTs and AuNPs, due to their excellent electrical conductivities, could accelerate electron transfer for the signal amplification. Experimental results revealed that the immunoassay is able to detect 17β-E2 as low as 10 pg mL-1, with a linear range from 0.01 to 100 ng mL-1. This microfluidic paper-based immunosensor would provide a new platform for low cost, sensitive, specific, and point-of-care diagnosis of 17β-E2.
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Affiliation(s)
- Yang Wang
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China
| | - Xinrong Li
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China
| | - Zhuang Kong
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China
| | - Hongyan Jin
- Obstetrics and Gynecology Department, First Hospital Peking University, Beijing 100034, China.
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 10090, China.
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25
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Pollock T, Weaver RE, Ghasemi R, deCatanzaro D. A mixture of five endocrine-disrupting chemicals modulates concentrations of bisphenol A and estradiol in mice. CHEMOSPHERE 2018; 193:321-328. [PMID: 29145094 DOI: 10.1016/j.chemosphere.2017.11.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/05/2017] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
Most people in developed countries are exposed to multiple endocrine-disrupting synthetic chemicals. We previously showed that a single dose of triclosan, tetrabromobisphenol A (TBBPA), butyl paraben, propyl paraben, or di(2-ethylhexyl) phthalate elevated concentrations of bisphenol A (BPA) in mice. Here we investigated whether concurrent exposure to lower doses of these five chemicals could modulate concentrations of bisphenol A (BPA) or the natural estrogen, 17β-estradiol (E2). CF1 mice were injected subcutaneously with 0.1 or 0.5 mg of one chemical, or a 0.5 mg mixture containing 0.1 mg of each of all five chemicals, then given dietary 50 μg kg-114C-BPA. The mixture elevated 14C-BPA concentrations in the lungs, muscle, uterus, ovaries, kidney, and blood serum of female mice. When administered alone, triclosan and TBBPA elevated 14C-BPA concentrations in the uterus, ovaries, and blood serum. In another experiment, CF1 mice were injected subcutaneously with the 0.5 mg mixture containing 0.1 mg of all five chemicals, then E2 was measured in urine 2-12 h later. The mixture elevated E2 at 8 h after injection in female mice. No treatments significantly altered concentrations of 14C-BPA or E2 in male mice. These data show that these endocrine-disrupting chemicals interact in vivo, magnifying one another's effects, consistent with inhibition of enzymes that are critical for estrogen metabolism. These findings highlight the importance of considering exposure to multiple chemicals when assessing health outcomes and determining regulatory exposure limits.
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Affiliation(s)
- Tyler Pollock
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada.
| | - Rachel E Weaver
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Ramtin Ghasemi
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
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26
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EL-Azzazi FE, Hegab IM, Hanafy AM. Biostimulation and reproductive performance of artificially inseminated rabbit does (Oryctolagus cuniculus). WORLD RABBIT SCIENCE 2017. [DOI: 10.4995/wrs.2017.7446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Biostimulation is a non-hormonal and practical technique that has not yet been widely utilised when applied immediately before insemination to improve reproductive efficiency in livestock species. This study was conducted to determine the influence of short-term male biostimulation on behavioural and reproductive performance of inseminated rabbit does. A total of 142 female New Zealand White rabbits were randomly assigned to 3 groups. Females were either exposed to male odour (Odour group) or an adult aproned male (Male group), while the remaining does that were neither exposed to the male odour nor the adult male are considered the control group. All females were inseminated after the 2 h exposure session. Conception rates were determined by abdominal palpation 12 d after insemination. The results showed that conception rate of the male odour group (79.59%) was greater than that of male presence group (76.09%) and that of the control group (68.09%). Moreover, biostimulated does showed significant behavioural activities during the 2 h exposure session compared to the control group. Although no significant differences were recognised, litter size at birth and at weaning was slightly increased in biostimulated compared to control females. Nor were there any significant difference in serum oestradiol concentrations between treated groups. Conclusively, short-term 2 h biostimulation of rabbit does resulted in the appearance of various behavioural responses followed by differences in conception rates between groups after routine artificial insemination.
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27
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Greville LJ, Pollock T, Salter JC, Faure PA, deCatanzaro D. Progesterone transfer among cohabitating female big brown bats (Eptesicus fuscus). Gen Comp Endocrinol 2017; 247:199-204. [PMID: 28185935 DOI: 10.1016/j.ygcen.2017.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/02/2017] [Accepted: 02/05/2017] [Indexed: 01/11/2023]
Abstract
Experiments using female mice and bats have demonstrated that tritium-labeled 17β-estradiol (3H-E2) can be absorbed via cutaneous and intranasal routes and distributed to reproductive and neural tissues. Radioactivity has also been measured in tissues of untreated females after 48h cohabitation with 3H-E2 injected males. The present study was designed to quantify steroid transfer among female bats. Radioactive quantification via liquid scintillation counting revealed absorption of tritium-labeled progesterone (3H-P4) in adult females 1h after cutaneous and intranasal application (10μCi). Subsequently, pairs of mature females were each housed for 48h with a single mature female that had been administered 3H-P4 (50μCi) via intraperitoneal injection. Radioactivity was observed in all collected tissues of all non-injected females at levels significantly greater than the control group. Following the same paradigm, radioactivity was not observed in the tissues of untreated female bats that were housed with stimulus females treated with 3H-E2 (50μCi). Enzyme immunoassays revealed measurable levels of unconjugated progesterone and estradiol in the urine of female bats, suggesting urine as a vector for steroid transfer. Given that bats of this species live in predominantly female roosts in very close contact, progesterone transfer among individuals is likely to occur in natural roosts.
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Affiliation(s)
- Lucas J Greville
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Tyler Pollock
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Joseph C Salter
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Paul A Faure
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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Borman ED, Vecchi N, Pollock T, deCatanzaro D. Diethylhexyl phthalate magnifies deposition of 14 C-bisphenol A in reproductive tissues of mice. J Appl Toxicol 2017; 37:1225-1231. [PMID: 28555957 DOI: 10.1002/jat.3484] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 04/03/2017] [Accepted: 04/03/2017] [Indexed: 01/06/2023]
Abstract
Endocrine disrupting chemicals are found in diverse common products, including cosmetics, food packaging, thermal receipt paper and plastic containers. This exposes most people in developed countries through ingestion, skin absorption and inhalation. Two ubiquitous endocrine disrupting chemicals, bisphenol A (BPA) and diethylhexyl phthalate (DEHP) can interact in disrupting blastocyst implantation in inseminated females. We hypothesized that DEHP might increase the bioavailability of BPA in tissues by competing for metabolic enzymes. We injected 0, 3, 9 or 18 mg DEHP into female and male mice and allowed 30 min for the chemical to circulate before giving them a food supplement containing 50 μg kg-1 14 C-BPA. Animals were dissected 1 h following 14 C-BPA administration and various tissue samples were acquired. Samples were solubilized and radioactivity was measured via liquid scintillation counting. In cycling females, DEHP increased BPA deposition in the muscle, uterus, ovaries and blood serum relative to controls. In peri-implantation females, DEHP increased deposition of BPA in the uterus, ovaries and serum relative to controls. In males, DEHP doses increased BPA deposition in serum and epididymis relative to controls. These results are consistent with the hypothesis that DEHP competes with BPA for conjugating enzymes such as UDP-glucuronosyltransferase, thereby magnifying the presence of BPA in estrogen-binding reproductive tissues. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Evan D Borman
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Nicholas Vecchi
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Tyler Pollock
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
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29
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Elliott B, Muir C, deCatanzaro D. Sources of variance within and among young men in concentrations of 17β-estradiol and testosterone in axillary perspiration. Physiol Behav 2017; 173:23-29. [PMID: 28119158 DOI: 10.1016/j.physbeh.2017.01.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/19/2017] [Accepted: 01/19/2017] [Indexed: 01/30/2023]
Abstract
The most potent estrogen, 17β-estradiol (E2), and its precursor, testosterone (T), play critical roles in mammalian reproductive processes. Evidence indicates that these steroids are present in bioactive form in the excretions of many male mammals. It has been demonstrated that small lipophilic steroids such as E2 can be absorbed by proximate females from male excretions, arriving in the uterus, brain, and other organs where there are estrogen receptors. We took repeated samples of axillary perspiration from men aged 20-30years during vigorous exercise. Both steroids were consistently measurable, with concentrations that ranged from values comparable to those in facial perspiration and urine of both men and women to values that greatly exceeded concentrations observed in any other substrate of men and women. Inter-individual variance in axillary E2 was positively correlated with the extent of intimate experience with women, as assessed by a questionnaire, but unrelated to subjective measures of stress, exercise habits, or phytoestrogen content of diet. In addition, higher levels of axillary E2 were observed in participants when samples were collected by a female (as compared to a male) experimenter. These data are concordant with an hypothesis that male excretion of sex steroids could exert pro-reproductive influences on proximate females.
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Affiliation(s)
- Brittney Elliott
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Cameron Muir
- Department of Psychology, Centre for Neuroscience, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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30
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deCatanzaro D, Pollock T. Absorption and distribution of estradiol from male seminal emissions during mating. J Endocrinol 2016; 231:245-257. [PMID: 27758953 PMCID: PMC5097127 DOI: 10.1530/joe-16-0247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/06/2016] [Indexed: 12/20/2022]
Abstract
Estradiol-17β (E2) plays critical roles in female maturation, sexual receptivity, ovulation and fertility. In many mammals, contact with males can similarly affect these female parameters, whereas male excretions contain significant quantities of E2 We administered radiolabeled estradiol ([3H]E2) to male mice in doses representing a small fraction of their endogenous E2 These males were paired with sexually receptive females, and radioactivity was traced into the females' systems. In Experiment 1, males were given [3H]E2 at 24 and 1 h before mating. Male-to-female [3H]E2 transfer intensified with increasing numbers of intromissions and spiked in the uterus after insemination. In Experiment 2, sexually experienced young males received [3H]E2 at 72 and 24 h before mating, and all mated to ejaculation. The copulatory plug deposited in the female reproductive tract contained substantial levels of radioactivity. The uteri, other tissues and blood serum of females displayed radioactivity indicative of E2 transfer. In Experiment 3, radioactivity was observed 3 and 18 h after insemination in the females' uteri and other tissues, including parts of the brain. In Experiment 4, we observed substantial levels of radioactivity in semen as well as the copulatory plugs retrieved from the females after mating. Transferred E2 could directly affect abundant estrogen receptors in the female reproductive tract without potential metabolism by the liver. Sexually transferred E2 may facilitate uterine preparation for blastocyst implantation. These data converge with several lines of evidence indicating that male-sourced E2 can transfer to proximate females in bioactive form, contributing to various mammalian pheromonal effects.
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Affiliation(s)
- Denys deCatanzaro
- Department of PsychologyNeuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Tyler Pollock
- Department of PsychologyNeuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
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31
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Lin H, Travisano M, Kazlauskas RJ. The Fungus Trichoderma Regulates Submerged Conidiation Using the Steroid Pregnenolone. ACS Chem Biol 2016; 11:2568-75. [PMID: 27413801 DOI: 10.1021/acschembio.6b00376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In previous work, we evolved a population of Trichoderma citrinoviride in liquid cultures to speed up its asexual development cycle. The evolved population, called T-6, formed conidia 3 times sooner and in >1000-fold greater numbers. Here, we identify the steroid pregnenolone as a molecular signal for this different behavior. Media in which the ancestral T. citrinoviride population was grown (called ancestral spent media) contained a submerged conidiation inhibitor. Growing the evolved population T-6 in ancestral spent media eliminated the abundant formation of conidia. This inhibition depended on the amount and age of the ancestral spent medium and the time that the ancestral spent medium was added to the T-6 culture. Fractionation of the ancestral spent medium identified a hydrophobic inhibiting compound with a molecular weight less than 2000 g/mol. A combination of GC-MS, ELISA, and reaction with cholesterol oxidase identified it as pregnenolone. The addition of pregnenolone to cultures of T-6 inhibited submerged conidiation by inhibiting formation of conidiophores, while 10 other analogous steroids did not. Pregnenolone also inhibited submerged conidiation of Fusarium graminearum PH-1, a plant pathogen that causes head blight in wheat and barley. This identification of steroids as signal molecules in fungi creates opportunities to disrupt this signaling to control fungal behavior.
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Affiliation(s)
- Hui Lin
- The Biotechnology Institute, ‡Department of Ecology, Evolution & Behavior, and §Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, 1479 Gortner Avenue, Saint Paul, Minnesota 55108, United States
| | - Michael Travisano
- The Biotechnology Institute, ‡Department of Ecology, Evolution & Behavior, and §Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, 1479 Gortner Avenue, Saint Paul, Minnesota 55108, United States
| | - Romas J. Kazlauskas
- The Biotechnology Institute, ‡Department of Ecology, Evolution & Behavior, and §Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, 1479 Gortner Avenue, Saint Paul, Minnesota 55108, United States
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Pollock T, Greville LJ, Tang B, deCatanzaro D. Triclosan elevates estradiol levels in serum and tissues of cycling and peri-implantation female mice. Reprod Toxicol 2016; 65:394-401. [PMID: 27638325 DOI: 10.1016/j.reprotox.2016.09.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/17/2016] [Accepted: 09/09/2016] [Indexed: 12/24/2022]
Abstract
Triclosan, an antimicrobial agent added to personal care products, can modulate estrogenic actions. We investigated whether triclosan affects concentrations of exogenous and endogenous estradiol. Female mice were given injections of triclosan followed by 1μCi tritium-labeled estradiol. Mice given daily 2-mg triclosan doses (57.9mg/kg/dose) showed significantly elevated radioactivity in tissues and serum compared to controls. A single dose of 1 or 2mg triclosan increased radioactivity in the uterus in both cycling and peri-implantation females. We also measured natural urinary estradiol at 2-12h following triclosan injection. Unconjugated estradiol was significantly elevated for several hours following 1 or 2mg of triclosan. These data are consistent with evidence that triclosan inhibits sulfonation of estrogens by interacting with sulfotransferases, preventing metabolism of these steroids into biologically inactive forms. Elevation of estrogen concentrations by triclosan is potentially relevant to anti-reproductive and carcinogenic actions of excessive estrogen activity.
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Affiliation(s)
- Tyler Pollock
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Lucas J Greville
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Brandon Tang
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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Ventura-Aquino E, Baños-Araujo J, Fernández-Guasti A, Paredes RG. An unknown male increases sexual incentive motivation and partner preference: Further evidence for the Coolidge effect in female rats. Physiol Behav 2016; 158:54-9. [PMID: 26902417 DOI: 10.1016/j.physbeh.2016.02.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 02/08/2016] [Accepted: 02/18/2016] [Indexed: 01/12/2023]
Abstract
The Coolidge effect is the resumption of copulatory behavior induced by a novel sexual partner that has been reported in several species. The term is also used in males when they resume mating when exposed to an unknown receptive female after they have reached sexual exhaustion. Only few studies have evaluated the Coolidge effect in females. In the present study we further evaluated this possibility using the sexual incentive motivation (SIM) and the partner preference (PP) tests. Ovariectomized rats were hormonally primed and allowed to mate for 1h controlling the sexual interaction (paced mating) or in a condition where they were unable to pace the sexual encounters. In the SIM and PP tests, females were exposed to the male with whom they had mated before (known male) or with an unknown, sexually experienced one (unknown male). Regardless whether they paced the sexual interaction, all females showed clear preference for the unknown male but females that paced the sexual contacts spent more time in the incentive zone of the unknown male than females that could not pace the sexual interaction. Similar results were observed in the PP test. Both groups of females spent more time in the compartment of the previously unknown male than in that of the known one, but received the same amount of sexual stimulation, i.e., mounts, intromissions and ejaculations from both males. No preference was found when the females were tested in the SIM test between an unknown male and a sexually receptive female. The results further support the existence of a Coolidge effect in female rats that is more apparent if they pace the sexual interaction.
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Affiliation(s)
| | | | | | - Raúl G Paredes
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
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34
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Nyameasem JK, Adu EK, Amoah KO, Hagan BA. The effect of male proximity on vaginal patency, estrous cycle length and feed intake of female grasscutters. Trop Anim Health Prod 2015; 48:445-9. [PMID: 26676245 DOI: 10.1007/s11250-015-0972-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/07/2015] [Indexed: 01/02/2023]
Abstract
This study was conducted to investigate the influence of male proximity on vaginal patency, estrous cycle length and feed intake of nulliparous and pluriparous grasscutter (Thryonomys swinderianus) does. Twelve non-pregnant and non-lactating adult female (six nulliparous and six pluriparous) grasscutters and six proven male grasscutters were used for the study in a 2 × 2 factorial design. The factors were the type of contact between the sexes (no visual contact v. visual contact) and parity (nulliparous v. pluriparous). The condition of the vaginal membrane, which was monitored daily, was used as an indicator of the reproductive status of the experimental females. The findings of the study showed significant effect (P < 0.001) of male presence on feed intake. Visual contact between breeding pairs significantly (P < 0.05) increased the rate of vaginal opening (11 ± 3.3 % v. 22 ± 3.3 %) and significantly (P < 0.001) reduced the length of estrous cycling in the grasscutters (58 ± 5 days v. 20 ± 5 days). However, the duration of vaginal patency was not (P > 0.05) affected by the contact type. Parity had a significant (P < 0.05) effect on the duration of vaginal patency with pluriparous does recording longer duration compared to nulliparous does (76 ± 12 h v. 38 ± 12 h), but not on feed intake (P > 0.05). The study has revealed that housing breeding grasscutters such that females have visual contact with males could increase rate of vaginal patency and reduce the length of the estrous cycle in both pluriparous and nulliparous grasscutter does. This practice however compromises feed intake of the females.
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Affiliation(s)
| | | | - Kwame Owusu Amoah
- CSIR-Animal Research Institute, P.O. Box AH 20, Achimota, Accra, Ghana
| | - Bernard Ato Hagan
- CSIR-Animal Research Institute, P.O. Box AH 20, Achimota, Accra, Ghana
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35
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Florea A, Cristea C, Vocanson F, Săndulescu R, Jaffrezic-Renault N. Electrochemical sensor for the detection of estradiol based on electropolymerized molecularly imprinted polythioaniline film with signal amplification using gold nanoparticles. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.06.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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36
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Ervin KSJ, Lymer JM, Matta R, Clipperton-Allen AE, Kavaliers M, Choleris E. Estrogen involvement in social behavior in rodents: Rapid and long-term actions. Horm Behav 2015; 74:53-76. [PMID: 26122289 DOI: 10.1016/j.yhbeh.2015.05.023] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/16/2015] [Accepted: 05/26/2015] [Indexed: 12/21/2022]
Abstract
This article is part of a Special Issue ("Estradiol and cognition"). Estrogens have repeatedly been shown to influence a wide array of social behaviors, which in rodents are predominantly olfactory-mediated. Estrogens are involved in social behavior at multiple levels of processing, from the detection and integration of socially relevant olfactory information to more complex social behaviors, including social preferences, aggression and dominance, and learning and memory for social stimuli (e.g. social recognition and social learning). Three estrogen receptors (ERs), ERα, ERβ, and the G protein-coupled ER 1 (GPER1), differently affect these behaviors. Social recognition, territorial aggression, and sexual preferences and mate choice, all requiring the integration of socially related olfactory information, seem to primarily involve ERα, with ERβ playing a lesser, modulatory role. In contrast, social learning consistently responds differently to estrogen manipulations than other social behaviors. This suggests differential ER involvement in brain regions important for specific social behaviors, such as the ventromedial and medial preoptic nuclei of the hypothalamus in social preferences and aggression, the medial amygdala and hippocampus in social recognition, and the prefrontal cortex and hippocampus in social learning. While the long-term effects of ERα and ERβ on social behavior have been extensively investigated, our knowledge of the rapid, non-genomic, effects of estrogens is more limited and suggests that they may mediate some social behaviors (e.g. social learning) differently from long-term effects. Further research is required to compare ER involvement in regulating social behavior in male and female animals, and to further elucidate the roles of the more recently described G protein-coupled ERs, both the GPER1 and the Gq-mER.
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Affiliation(s)
- Kelsy S J Ervin
- Department of Psychology and Neuroscience Program, University of Guelph, Guelph, Ontario, Canada
| | - Jennifer M Lymer
- Department of Psychology and Neuroscience Program, University of Guelph, Guelph, Ontario, Canada
| | - Richard Matta
- Department of Psychology and Neuroscience Program, University of Guelph, Guelph, Ontario, Canada
| | | | - Martin Kavaliers
- Department of Psychology, University of Western Ontario, London, Ontario, Canada
| | - Elena Choleris
- Department of Psychology and Neuroscience Program, University of Guelph, Guelph, Ontario, Canada.
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37
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Borman ED, Foster WG, Greenacre MKE, Muir CC, deCatanzaro D. Stress lowers the threshold dose at which bisphenol A disrupts blastocyst implantation, in conjunction with decreased uterine closure and e-cadherin. Chem Biol Interact 2015; 237:87-95. [PMID: 26026914 DOI: 10.1016/j.cbi.2015.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/04/2015] [Accepted: 05/18/2015] [Indexed: 01/07/2023]
Abstract
Exposure to stress can disrupt blastocyst implantation in inseminated female mice, and evidence implicates elevation of the female's estrogen:progesterone ratio. Exposure to the xenoestrogen, bisphenol A (BPA) can also disrupt implantation. Undisturbed control female CF-1 mice were compared to other females that were exposed to predators (rats) across a wire-mesh grid during gestation days (GD) 1-4, a procedure that elevates corticosterone but does not on its own disrupt implantation in this genetic strain. They were concurrently exposed to varied doses of BPA that on their own were below the threshold dose sufficient to disrupt implantation. On GD 6, we measured the number of intrauterine implantation sites and extracted their uteri, which subsequently were stained and analyzed for uterine luminal area and epithelial cadherin (e-cadherin), a molecule that causes uterine closure and adhesion of blastocysts to the uterine epithelium. The combination of rat-exposure stress and BPA significantly disrupted implantation and increased uterine luminal area, whereas either manipulation on its own did not. E-cadherin was significantly reduced by exposure to BPA, positively correlated with the number of implantation sites, and inversely correlated with luminal area. BPA exposure was also associated with nonmonotonic perturbation of urinary corticosterone concentrations and increased urinary estradiol concentrations on GD 6. These data are consistent with a potential summation of stress-induced estrogen and xenoestrogen activity.
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Affiliation(s)
- Evan D Borman
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Warren G Foster
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Matthew K E Greenacre
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Cameron C Muir
- Department of Psychology, Centre for Neuroscience, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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38
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Apps PJ, Weldon PJ, Kramer M. Chemical signals in terrestrial vertebrates: search for design features. Nat Prod Rep 2015; 32:1131-53. [DOI: 10.1039/c5np00029g] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We review current information on intraspecific chemical signals and search for patterns in signal chemistry among modern terrestrial vertebrates (Amniota), including tortoises, squamate reptiles (amphisbaenians, lizards, and snakes), birds, and mammals.
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Affiliation(s)
- Peter J. Apps
- Paul G. Allen Family Foundation Laboratory for Wildlife Chemistry
- Botswana Predator Conservation Trust
- Maun
- Botswana
| | - Paul J. Weldon
- Smithsonian Conservation Biology Institute
- National Zoological Park
- Front Royal
- USA
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