1
|
Akangbe OA, Chukwuka AV, Imiuwa ME, Adeogun AO. Gonad pathology, sex hormone modulation and vitellogenin expression in Chrysichthys nigrodigitatus from Lagos and Epe lagoons within the southern-lagoon system, Nigeria. FRONTIERS IN TOXICOLOGY 2024; 6:1336916. [PMID: 38380148 PMCID: PMC10878419 DOI: 10.3389/ftox.2024.1336916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/16/2024] [Indexed: 02/22/2024] Open
Abstract
Introduction: Estrogenic chemicals in aquatic environments impact fish reproductive health, with vitellogenin protein levels serving as a crucial biomarker for xenoestrogen exposure. Limited knowledge exists on estrogenic effects in tropical environments, prompting an investigation into the influence of environmental estrogens on Chrysichthys nigrodigitatus in Lagos and Epe lagoons. Methods: A total of 195 fish samples underwent analysis for vitellogenin protein, sex hormones (testosterone and 17 β-estradiol), and gonad pathology in effluent-receiving areas of the specified lagoons. Results: Gonadal alterations were observed in male and female fish, including empty seminiferous tubules and distorted ovaries. Intersex occurred in 3.81% of Lagos and 3.33% of Epe. Testosterone levels were generally higher in females and males from both lagoons, while E2 levels were higher in females from both lagoons, with Lagos showing higher levels than Epe. Vtg levels were higher in males than females in Lagos samples but showed no significant difference in Epe samples. Discussion: Contaminant analysis revealed similar trends in metals (Hg, As, Cr) and phthalates (DEHP, DBP, DEP) in both sexes in the Epe population. Multivariate depictions from the PCA showed sex-specific patterns of metal uptake (Cd) in male fishes at the Lagos Lagoon. The positive association between higher pH loadings and metal and DBP levels in sediment at the Lagos lagoon suggests the influence of higher alkalinity in lower bioavailability of contaminants. Conclusion: Endocrine disrupting effects were observed in male and female Chrysichthys nigrodigitatus in Lagos and Epe lagoons populations, with notable differences in hormone and contaminant concentrations between the two lagoon systems. Identification of specific contaminants and their spatial and temporal trends can inform targeted management and remediation efforts to protect and restore these valuable aquatic ecosystems.
Collapse
Affiliation(s)
| | - Azubuike V. Chukwuka
- National Environmental Standards and Regulations Enforcement Agency (NESREA), Wupa, Nigeria
| | - Maurice E. Imiuwa
- Department of Animal and Environmental Biology, University of Benin, Benin, Nigeria
| | - Aina O. Adeogun
- Department of Zoology, University of Ibadan, Ibadan, Oyo, Nigeria
| |
Collapse
|
2
|
Ferraz da Silva I, Merlo E, Costa CS, Graceli JB, Rodrigues LCM. Tributyltin Exposure Is Associated With Recognition Memory Impairments, Alterations in Estrogen Receptor α Protein Levels, and Oxidative Stress in the Brain of Female Mice. FRONTIERS IN TOXICOLOGY 2022; 3:654077. [PMID: 35295135 PMCID: PMC8915859 DOI: 10.3389/ftox.2021.654077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/05/2021] [Indexed: 01/18/2023] Open
Abstract
Tributyltin (TBT) is a persistent organometallic pollutant widely used in several agricultural and industrial processes. TBT exposure is associated with various metabolic, reproductive, immune, and cardiovascular abnormalities. However, few studies have evaluated the effects of TBT on behavior. In the present study, we aimed to investigate whether TBT exposure results in oxidative, neuroendocrine, and behavioral alterations. TBT was administered to adult female mice (250, 500, or 750 ng/kg/day or veh for 14 days), and their recognition memory was assessed. We have also evaluated estrogen receptor (ER)α protein expression and oxidative stress (OS) in brain areas related to memory, as well as the correlation between them. A reduction in short- and long-term recognition memory (STM and LTM) performance, as well as in total exploration time was observed in TBT mice. Reduced ERα protein expression was observed in the prefrontal cortex (PFC) and hippocampus of TBT mice, while an increase in TBARS concentration was observed in the PFC of treated animals. Collectively, these data suggest that TBT exposure impairs recognition memory in female mice as a result of, at least in part, its toxicological effects on ERα expression and OS in specific brain areas related to memory.
Collapse
Affiliation(s)
- Igor Ferraz da Silva
- Laboratory of Neurotoxicology and Psychopharmacology, Department of Physiological Sciences, Federal University of Espírito Santo, Vitoria, Brazil
| | - Eduardo Merlo
- Laboratory of Endocrinology and Cellular Toxicology, Department of Morphology, Federal University of Espírito Santo, Vitoria, Brazil
| | - Charles S Costa
- Laboratory of Endocrinology and Cellular Toxicology, Department of Morphology, Federal University of Espírito Santo, Vitoria, Brazil
| | - Jones B Graceli
- Laboratory of Endocrinology and Cellular Toxicology, Department of Morphology, Federal University of Espírito Santo, Vitoria, Brazil
| | - Lívia C M Rodrigues
- Laboratory of Neurotoxicology and Psychopharmacology, Department of Physiological Sciences, Federal University of Espírito Santo, Vitoria, Brazil
| |
Collapse
|
3
|
Rana AK, Sharma S, Singh D. Differential activation of Gsk-3β in the cortex and the hippocampus induces cognitive and behavioural impairments in middle-aged ovariectomized rat. COMPREHENSIVE PSYCHONEUROENDOCRINOLOGY 2020; 4:100019. [PMID: 35755628 PMCID: PMC9216607 DOI: 10.1016/j.cpnec.2020.100019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/06/2020] [Accepted: 11/26/2020] [Indexed: 12/21/2022] Open
Abstract
Glycogen synthase kinase-3 (Gsk-3β) aberration act as a crucial pathogenic factor in several neurological conditions. However its role in menopause associated behavioural impairments is still not unclear. The present study was designed to understand the role of Gsk-3β in the progression of neurobehavioural impairments in middle-aged ovariectomized (ovx) rats. The animals showed a significant impairment in spatial and recognition memory, along with anxiety and depression-like behaviour following 22 weeks of ovx. The genomic expression of ERα, ERβ, Nrf2, HO-1, TNFα, and IL-6 was altered in both the cortex and the hippocampus of ovx rats. Protein expression of p-Gsk-3β(Ser9) was significantly downregulated in the cortex after ovx. However, the hippocampus showed a surprisingly opposite trend in the levels of p-Gsk-3β(Ser9) as that of the cortex. Differential activation of Gsk-3β and its downstream proteins such as β-catenin and p-mTOR were also altered following ovx. The study concluded that differential activation of Gsk-3β, along with oxidative stress and neuroinflammation in the cortex and the hippocampus, leads to the induction of cognitive and behaviour impairments in ovx rats. Cognitive and behaviour impairment was displayed by rats after ovariectomy (ovx). Estrogen receptors differentially expressed in the cortex and the hippocampus region of ovx rats. Differential activation of Gsk-3β was observed in the cortex and the hippocampus after ovx. Expression of β-catenin and p-mTOR also altered in both the regions of the rat brain.
Collapse
Affiliation(s)
- Anil Kumar Rana
- Pharmacology and Toxicology Laboratory, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
| | - Supriya Sharma
- Pharmacology and Toxicology Laboratory, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
| | - Damanpreet Singh
- Pharmacology and Toxicology Laboratory, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
- Corresponding author. Pharmacology and Toxicology Laboratory, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India.
| |
Collapse
|
4
|
Priyanka HP, Nair RS. Neuroimmunomodulation by estrogen in health and disease. AIMS Neurosci 2020; 7:401-417. [PMID: 33263078 PMCID: PMC7701372 DOI: 10.3934/neuroscience.2020025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/27/2020] [Indexed: 12/18/2022] Open
Abstract
Systemic homeostasis is maintained by the robust bidirectional regulation of the neuroendocrine-immune network by the active involvement of neural, endocrine and immune mediators. Throughout female reproductive life, gonadal hormones undergo cyclic variations and mediate concomitant modulations of the neuroendocrine-immune network. Dysregulation of the neuroendocrine-immune network occurs during aging as a cumulative effect of declining neural, endocrine and immune functions and loss of compensatory mechanisms including antioxidant enzymes, growth factors and co-factors. This leads to disruption of homeostasis and sets the stage for the development of female-specific age-associated diseases such as autoimmunity, osteoporosis, cardiovascular diseases and hormone-dependent cancers. Ovarian hormones especially estrogen, play a key role in the maintenance of health and homeostasis by modulating the nervous, endocrine and immune functions and thereby altering neuroendocrine-immune homeostasis. Immunologically estrogen's role in the modulation of Th1/Th2 immune functions and contributing to pro-inflammatory conditions and autoimmunity has been widely studied. Centrally, hypothalamic and pituitary hormones influence gonadal hormone secretion in murine models during onset of estrous cycles and are implicated in reproductive aging-associated acyclicity. Loss of estrogen affects neuronal plasticity and the ensuing decline in cognitive functions during reproductive aging in females implicates estrogen in the incidence and progression of neurodegenerative diseases. Peripherally, sympathetic noradrenergic (NA) innervations of lymphoid organs and the presence of both adrenergic (AR) and estrogen receptors (ER) on lymphocytes poise estrogen as a potent neuroimmunomodulator during health and disease. Cyclic variations in estrogen levels throughout reproductive life, perimenopausal surge in estrogen levels followed by its precipitous decline, concomitant with decline in central hypothalamic catecholaminergic activity, peripheral sympathetic NA innervation and associated immunosuppression present an interesting study to explore female-specific age-associated diseases in a new light.
Collapse
Affiliation(s)
- Hannah P Priyanka
- Inspire Laboratory, Institute of Advanced Research in Health Sciences, Tamil Nadu Government Multi Super Speciality Hospital, Omandurar Government Estate, Chennai-600002, India
| | | |
Collapse
|
5
|
Cabrera-Pedraza VR, de Jesús Gómez-Villalobos M, de la Cruz F, Aguilar-Alonso P, Zamudio S, Flores G. Pregnancy improves cognitive deficit and neuronal morphology atrophy in the prefrontal cortex and hippocampus of aging spontaneously hypertensive rats. Synapse 2017; 71:e21991. [DOI: 10.1002/syn.21991] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/24/2017] [Accepted: 07/02/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Verónica R. Cabrera-Pedraza
- Instituto de Fisiología; Benemérita Universidad Autónoma de Puebla; Puebla Pue México
- Depto. de Fisiología; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional; Cdmx México
| | | | - Fidel de la Cruz
- Depto. de Fisiología; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional; Cdmx México
| | | | - Sergio Zamudio
- Depto. de Fisiología; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional; Cdmx México
| | - Gonzalo Flores
- Instituto de Fisiología; Benemérita Universidad Autónoma de Puebla; Puebla Pue México
| |
Collapse
|
6
|
Liu YH, Zhang SH, Ji GX, Wu SM, Guo RX, Cheng J, Yan ZY, Chen JQ. Occurrence, distribution and risk assessment of suspected endocrine-disrupting chemicals in surface water and suspended particulate matter of Yangtze River (Nanjing section). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:90-97. [PMID: 27721125 DOI: 10.1016/j.ecoenv.2016.09.035] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 06/06/2023]
Abstract
The occurrence and distribution of eight selected endocrine-disrupting chemicals were investigated in samples of surface water and suspended particulate matter (SPM) in Nanjing section of Yangtze River over a year (the flow period, the wet period and the dry period). All target compounds were detected at least once in surface water with 4-tert-butylphenol (4-TBP), nonyphenol (NP) and bisphenol A (BPA) as the dominant compounds, with concentrations in the range of 225-1121ng/L, 1.4-858ng/L and 1.7-563ng/L, respectively. Except for December, all selected compounds for the other sampling times were not found in all sampling points. NP (mean concentration 69.8µg/g) and BPA (mean concentration 51.8µg/g) were also the dominant estrogens in SPM. In addition, the highest total compounds concentrations were found in December in both phases, which could be due to the low flow conditions and temperature during this season. Meanwhile, a significant positive correlation was found between the total compounds concentrations in the water phase and those in SPM phase. Risk assessment based on the calculated risk quotients (RQ) showed that low and moderate risk for the aquatic environment from presence of the target compounds at all sampling points with exception of 4-TBP and NP which might pose a high risk to aquatic organisms.
Collapse
Affiliation(s)
- Yan-Hua Liu
- Key laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education) & School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Sheng-Hu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
| | - Gui-Xiang Ji
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
| | - Sheng-Min Wu
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
| | - Rui-Xin Guo
- Key laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education) & School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Jie Cheng
- Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310013, China
| | - Zheng-Yu Yan
- Key laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education) & School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Jian-Qiu Chen
- Key laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education) & School of Science, China Pharmaceutical University, Nanjing 211198, China.
| |
Collapse
|
7
|
Prokai-Tatrai K, Nguyen V, Prokai L. Non-Feminizing Estrogens Do Not Exhibit Antidepressant-like Activity. JOURNAL OF PHARMACEUTICS AND DRUG RESEARCH 2016; 1:1-6. [PMID: 28239683 PMCID: PMC5321232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this exploratory study, we performed an evaluation of non-feminizing estrogens as lead compounds for the safe treatment of menopausal symptoms. Despite confirming an enhancement of antioxidant potency as a consequence of increased lipophilicity of the prototype structures, our analyses have revealed serious shortcomings regarding pharmaceutically important properties and drug-likeness. In addition, our assessment in an animal model of estrogen deprivation has confirmed that genomic mechanisms are required for the alleviation of menopause-associated depression. Therefore, non-feminizing estrogens are not suitable to fulfill their implicated premise to address unmet needs to treat neurological and psychiatric conditions associated with estrogen deprivation of the brain.
Collapse
Affiliation(s)
- Katalin Prokai-Tatrai
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Vien Nguyen
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Laszlo Prokai
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| |
Collapse
|
8
|
Rubin LH, Carter CS, Drogos LL, Pournajafi-Nazarloo H, Sweeney JA, Maki PM. Effects of sex, menstrual cycle phase, and endogenous hormones on cognition in schizophrenia. Schizophr Res 2015; 166:269-75. [PMID: 25990704 PMCID: PMC4512858 DOI: 10.1016/j.schres.2015.04.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/27/2015] [Accepted: 04/29/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND In women with schizophrenia, cognition has been shown to be enhanced following administration of hormone therapy or oxytocin. We examined how natural hormonal changes across the menstrual cycle influence cognition in women with schizophrenia. We hypothesized that female patients would perform worse on "female-dominant" tasks (verbal memory/fluency) and better on "male-dominant" tasks (visuospatial) during the early follicular phase (low estradiol and progesterone) compared to midluteal phase (high estradiol and progesterone) in relation to estradiol but not progesterone. METHODS Fifty-four women (23 with schizophrenia) completed cognitive assessments and provided blood for sex steroid assays and oxytocin at early follicular (days 2-4) and midluteal (days 20-22) phases. Men were included to verify the expected pattern of sex differences on cognitive tests. RESULTS Expected sex differences were observed on "female-dominant" and "male-dominant" tasks (p<0.001), but the magnitude of those differences did not differ between patients and controls (p=0.44). Cognitive performance did not change across the menstrual cycle on "female-dominant" or "male-dominant" tasks in either group. Estradiol and progesterone levels were unrelated to cognitive performance. Oxytocin levels did not change across the menstrual cycle but were positively related to performance on "female-dominant" tasks in female patients only (p<0.05). CONCLUSIONS Sex differences in cognitive function are preserved in schizophrenia. Oxytocin levels do not change across the cycle, but relate to enhanced performance on female dominant tests in women. Physiological levels of oxytocin may thus have a more powerful benefit in some cognitive domains than estrogens in schizophrenia.
Collapse
Affiliation(s)
- Leah H. Rubin
- Department of Psychiatry, Women’s Mental Health Research Program, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Lauren L. Drogos
- Department of Physiology and Pharmacology and Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | | | - John A. Sweeney
- Departments of Psychiatry and Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Pauline M. Maki
- Department of Psychiatry, Women’s Mental Health Research Program, University of Illinois at Chicago, Chicago, IL, USA,Department of Psychology, University of Illinois at Chicago
| |
Collapse
|
9
|
Walf AA, Koonce CJ, Frye CA. Progestogens' effects and mechanisms for object recognition memory across the lifespan. Behav Brain Res 2015; 294:50-61. [PMID: 26235328 DOI: 10.1016/j.bbr.2015.07.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 07/16/2015] [Accepted: 07/28/2015] [Indexed: 12/11/2022]
Abstract
This review explores the effects of female reproductive hormones, estrogens and progestogens, with a focus on progesterone and allopregnanolone, on object memory. Progesterone and its metabolites, in particular allopregnanolone, exert various effects on both cognitive and non-mnemonic functions in females. The well-known object recognition task is a valuable experimental paradigm that can be used to determine the effects and mechanisms of progestogens for mnemonic effects across the lifespan, which will be discussed herein. In this task there is little test-decay when different objects are used as targets and baseline valance for objects is controlled. This allows repeated testing, within-subjects designs, and longitudinal assessments, which aid understanding of changes in hormonal milieu. Objects are not aversive or food-based, which are hormone-sensitive factors. This review focuses on published data from our laboratory, and others, using the object recognition task in rodents to assess the role and mechanisms of progestogens throughout the lifespan. Improvements in object recognition performance of rodents are often associated with higher hormone levels in the hippocampus and prefrontal cortex during natural cycles, with hormone replacement following ovariectomy in young animals, or with aging. The capacity for reversal of age- and reproductive senescence-related decline in cognitive performance, and changes in neural plasticity that may be dissociated from peripheral effects with such decline, are discussed. The focus here will be on the effects of brain-derived factors, such as the neurosteroid, allopregnanolone, and other hormones, for enhancing object recognition across the lifespan.
Collapse
Affiliation(s)
- Alicia A Walf
- Dept. of Psychology, The University at Albany-SUNY, Albany, NY 12222, USA; The Center for Life Sciences Research, The University at Albany-SUNY, Albany, NY 12222, USA; Institute of Arctic Biology, The University of Alaska-Fairbanks, Fairbanks, Alaska 99775, USA; The University of Alaska-Fairbanks, IDeA Network of Biomedical Excellence (INBRE), Fairbanks, Alaska 99775, USA; Cognitive Science Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Carolyn J Koonce
- Dept. of Psychology, The University at Albany-SUNY, Albany, NY 12222, USA; Institute of Arctic Biology, The University of Alaska-Fairbanks, Fairbanks, Alaska 99775, USA; The University of Alaska-Fairbanks, IDeA Network of Biomedical Excellence (INBRE), Fairbanks, Alaska 99775, USA
| | - Cheryl A Frye
- Dept. of Psychology, The University at Albany-SUNY, Albany, NY 12222, USA; Dept. of Biological Sciences, The University at Albany-SUNY, Albany, NY 12222, USA; The Center for Neuroscience, The University at Albany-SUNY, Albany, NY 12222, USA; The Center for Life Sciences Research, The University at Albany-SUNY, Albany, NY 12222, USA; Department of Chemistry and Biochemistry, The University of Alaska-Fairbanks, Fairbanks, Alaska 99775, USA; Institute of Arctic Biology, The University of Alaska-Fairbanks, Fairbanks, Alaska 99775, USA; The University of Alaska-Fairbanks, IDeA Network of Biomedical Excellence (INBRE), Fairbanks, Alaska 99775, USA.
| |
Collapse
|
10
|
Nie M, Yan C, Dong W, Liu M, Zhou J, Yang Y. Occurrence, distribution and risk assessment of estrogens in surface water, suspended particulate matter, and sediments of the Yangtze Estuary. CHEMOSPHERE 2015; 127:109-116. [PMID: 25676496 DOI: 10.1016/j.chemosphere.2015.01.021] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Accepted: 01/16/2015] [Indexed: 06/04/2023]
Abstract
The occurrence and distribution of six selected estrogen compounds were investigated in samples of surface water, suspended particulate matter (SPM), and sediment in the Yangtze Estuary and its coastal areas over four seasons. With the exception of 17α-ethinylestradiol (EE2), all estrogens were detected at least once in all three phases with bisphenol A (BPA) and estriol (E3) as the dominant estrogens in all phases. EE2 was not detected in any surface water samples. In addition, the highest total estrogen concentrations were found in January in all phases, which could be due to the low flow conditions and temperature during this season. A significant positive correlation was found between total estrogen concentrations and organic carbon (OC) contents, both in the water phase and solid phase (i.e. SPM and sediment), indicating the vital role played by OC. Based on a yeast estrogen screen (YES) bioassay, the higher estrogenic risk was found in the SPM and sediment phase when compared to the water phase. These results were confirmed by a risk assessment which revealed that the Yangtze Estuary was displayed a low to high risk over the seasons for all selected estrogens.
Collapse
Affiliation(s)
- Minghua Nie
- Key Laboratory of Geographic Information Science of the Ministry of Education, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Department of Geosciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Caixia Yan
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Wenbo Dong
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Min Liu
- Key Laboratory of Geographic Information Science of the Ministry of Education, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Department of Geosciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Junliang Zhou
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Yi Yang
- Key Laboratory of Geographic Information Science of the Ministry of Education, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Department of Geosciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China.
| |
Collapse
|
11
|
Matta Mello Portugal E, Cevada T, Sobral Monteiro-Junior R, Teixeira Guimarães T, da Cruz Rubini E, Lattari E, Blois C, Camaz Deslandes A. Neuroscience of exercise: from neurobiology mechanisms to mental health. Neuropsychobiology 2014; 68:1-14. [PMID: 23774826 DOI: 10.1159/000350946] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 03/24/2013] [Indexed: 11/19/2022]
Abstract
The neuroscience of exercise is a growing research area that is dedicated to furthering our understanding of the effects that exercise has on mental health and athletic performance. The present study examined three specific topics: (1) the relationship between exercise and mental disorders (e.g. major depressive disorder, dementia and Parkinson's disease), (2) the effects of exercise on the mood and mental health of athletes, and (3) the possible neurobiological mechanisms that mediate the effects of exercise. Positive responses to regular physical exercise, such as enhanced functional capacity, increased autonomy and improved self-esteem, are frequently described in the recent literature, and these responses are all good reasons for recommending regular exercise. In addition, physical exercise may improve both mood and adherence to an exercise program in healthy individuals and might modulate both the performance and mental health of athletes. Exercise is associated with the increased synthesis and release of both neurotransmitters and neurotrophic factors, and these increases may be associated with neurogenesis, angiogenesis and neuroplasticity. This review is a call-to-action that urges researchers to consider the importance of understanding the neuroscience of physical exercise and its contributions to sports science.
Collapse
|
12
|
Moreira AC, Silva AM, Santos MS, Sardão VA. Phytoestrogens as alternative hormone replacement therapy in menopause: What is real, what is unknown. J Steroid Biochem Mol Biol 2014; 143:61-71. [PMID: 24583026 DOI: 10.1016/j.jsbmb.2014.01.016] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/03/2014] [Accepted: 01/29/2014] [Indexed: 12/11/2022]
Abstract
Menopause is characterized by an altered hormonal status and by a decrease in life quality due to the appearance of uncomfortable symptoms. Nowadays, with increasing life span, women spend one-third of their lifetime under menopause. Understanding menopause-associated pathophysiology and developing new strategies to improve the treatment of menopausal-associated symptoms is an important topic in the clinic. This review describes physiological and hormone alterations observed during menopause and therapeutic strategies used during this period. We critically address the benefits and doubts associated with estrogen/progesterone-based hormone replacement therapy (HRT) and discuss the use of phytoestrogens (PEs) as a possible alternative. These relevant plant-derived compounds have structural similarities to estradiol, interacting with cell proteins and organelles, presenting several advantages and disadvantages versus traditional HRT in the context of menopause. However, a better assessment of PEs safety/efficacy would warrant a possible widespread clinical use.
Collapse
Affiliation(s)
- Ana C Moreira
- Doctoral Programme in Experimental Biology and Biomedicine, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana M Silva
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Maria S Santos
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Vilma A Sardão
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
| |
Collapse
|
13
|
Fischer B, Gleason C, Asthana S. Effects of hormone therapy on cognition and mood. Fertil Steril 2014; 101:898-904. [PMID: 24680649 DOI: 10.1016/j.fertnstert.2014.02.025] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/10/2014] [Accepted: 02/12/2014] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Results of the Women's Health Initiative (WHI) and Women's Health Initiative Memory Study (WHIMS) suggested that hormone therapy (HT) may be detrimental to cognitive health. This article reviews clinical studies that address issues relevant to those results. DESIGN Literature review. INTERVENTION(S) A search of Pubmed and Web of Science was conducted using the search terms HT and cognition, HT and mood. Clinical and observational studies were selected if they were published after the year 2000. Theories of HT mechanisms of action, pharmacology, biology, and observational and clinical trials are discussed. RESULT(S) Although observational and clinical trials show conflicting findings, methodologic considerations must be acknowledged. HT formulation and dose, route of administration, timing of initiation, length of treatment, and health of participants all contribute to inconsistencies in results. Transdermal estradiol and micronized progesterone administered at time of menopause are generally associated with cognitive and affective benefit. CONCLUSION(S) At the present time, results from existing studies are equivocal regarding the benefits of HT on cognition and affect. Future studies, such as the Kronos Early Estrogen Prevention Study (KEEPS), should address methodologic inconsistencies to provide clearer answers to this important question.
Collapse
Affiliation(s)
- Barbara Fischer
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Affairs Hospital, Madison, Wisconsin.
| | - Carey Gleason
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Affairs Hospital, Madison, Wisconsin; Wisconsin Alzheimer's Disease Research Center (ADRC), Madison, Wisconsin; Division of Geriatrics and Gerontology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
| | - Sanjay Asthana
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Affairs Hospital, Madison, Wisconsin; Wisconsin Alzheimer's Disease Research Center (ADRC), Madison, Wisconsin; Division of Geriatrics and Gerontology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
| |
Collapse
|
14
|
Petrone AB, Gatson JW, Simpkins JW, Reed MN. Non-feminizing estrogens: a novel neuroprotective therapy. Mol Cell Endocrinol 2014; 389:40-7. [PMID: 24424441 PMCID: PMC4040321 DOI: 10.1016/j.mce.2013.12.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 12/17/2013] [Accepted: 12/17/2013] [Indexed: 12/16/2022]
Abstract
While the conflict between basic science evidence for estrogen neuroprotection and the lack of effectiveness in clinical trials is only now being resolved, it is clear that strategies for estrogen neuroprotection that avoid activation of ERs have the potential for clinical application. Herein we review the evidence from both in vitro and in vivo studies that describe high potency neuroprotection with non-feminizing estrogens. We have characterized many of the essential chemical features of non-feminizing estrogens that eliminate or reduce ER binding while maintaining or enhancing neuroprotection. Additionally, we provide evidence that these non-feminizing estrogens have efficacy in protecting the brain from AD neuropathology and traumatic brain injury. In conclusion, it appears that the non-feminizing estrogen strategy for neuroprotection is a viable option to achieve the beneficial neuroprotective effects of estrogens while eliminating the toxic off-target effects of chronic estrogen administration.
Collapse
Affiliation(s)
- Ashley B Petrone
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, United States; Center for Basic and Translational Stroke Research, West Virginia University, Morgantown, WV, United States
| | - Joshua W Gatson
- Department of Emergency Medicine, University of Texas Southwestern Medical School, Dallas, TX, United States
| | - James W Simpkins
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, United States; Center for Basic and Translational Stroke Research, West Virginia University, Morgantown, WV, United States
| | - Miranda N Reed
- Center for Basic and Translational Stroke Research, West Virginia University, Morgantown, WV, United States; Department of Psychology, West Virginia University, Morgantown, WV, United States.
| |
Collapse
|
15
|
Estrogen modulates neural–immune interactions through intracellular signaling pathways and antioxidant enzyme activity in the spleen of middle-aged ovariectomized female rats. J Neuroimmunol 2014; 267:7-15. [DOI: 10.1016/j.jneuroim.2013.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 11/05/2013] [Accepted: 11/06/2013] [Indexed: 12/21/2022]
|
16
|
Kato TA, Hayakawa K, Monji A, Kanba S. Missing and Possible Link between Neuroendocrine Factors, Neuropsychiatric Disorders, and Microglia. Front Integr Neurosci 2013; 7:53. [PMID: 23874274 PMCID: PMC3711058 DOI: 10.3389/fnint.2013.00053] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 07/02/2013] [Indexed: 12/27/2022] Open
Abstract
Endocrine systems have long been suggested to be one of the important factors in neuropsychiatric disorders, while the underlying mechanisms have not been well understood. Traditionally, neuropsychiatric disorders have been mainly considered the consequence of abnormal conditions in neural circuitry. Beyond the neuronal doctrine, microglia, one of the glial cells with inflammatory/immunological functions in the central nervous system (CNS), have recently been suggested to play important roles in neuropsychiatric disorders. However, the crosstalk between neuroendocrine factors, neuropsychiatric disorders, and microglia has been unsolved. Therefore, we herein introduce and discuss a missing and possible link between these three factors; especially highlighting the following hormones; (1) Hypothalamic-Pituitary-Adrenal (HPA) axis-related hormones such as corticotropin-releasing hormone (CRH) and glucocorticoids, (2) sex-related hormones such as estrogen and progesterone, and (3) oxytocin. A growing body of evidence has suggested that these hormones have a direct effect on microglia. We hypothesize that hormone-induced microglial activation and the following microglia-derived mediators may lead to maladaptive neuronal networks including synaptic dysfunctions, causing neuropsychiatric disorders. Future investigations to clarify the correlation between neuroendocrine factors and microglia may contribute to a novel understanding of the pathophysiology of neuropsychiatric disorders.
Collapse
Affiliation(s)
- Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan ; Innovation Center for Medical Redox Navigation, Kyushu University , Fukuoka , Japan
| | | | | | | |
Collapse
|
17
|
Oestrogen receptor α agonist improved long-term ovariectomy-induced spatial cognition deficit in young rats. Int J Neuropsychopharmacol 2013; 16:1071-82. [PMID: 22999489 DOI: 10.1017/s1461145712000958] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Ovariectomy is known as 'surgical menopause' with decreased levels of oestrogen in female rodents and its reported risks and adverse effects include cognitive impairment. In the brain, oestrogen exerts effects through its receptors, oestrogen receptor α (ERα) and β (ERβ). However, the role of ERα or ERβ in ovariectomy-induced cognitive impairment needs further investigation. Here, we observed that bilaterally ovariectomized 3-month-old rats showed obvious spatial learning and memory deficits in the Morris water maze with significant loss of neurons and synapses in the hippocampus. In addition to the rapid decline in serum oestradiol levels, the expression of ERα, but not ERβ, was decreased in the hippocampus starting 1 wk after ovariectomy. Prompt 4,4',4″-(4-propyl-[1H]-pyrazole-1,3,5-triyl) trisphenol (PPT) treatment (1 mg/kg.d), an agonist of ERα, improved the spatial learning and memory ability of ovariectomized rats and rescued ovariectomy-induced neuron loss by up-regulating the level of BCLxl, an important anti-apoptosis protein. Furthermore, PPT treatment also improved ovariectomy-induced hippocampal synapse loss and up-regulated the levels of synaptic proteins (synapsin I, NR2A and GluR1) and the activates of CaMK Πα, ERK and Akt. Thus, these results demonstrated that ERα plays an important role in neuroprotection and that prompt ERα rescue is effective to improve hippocampal-dependent cognition deficit after long-term ovariectomy.
Collapse
|
18
|
Wardell SE, Kazmin D, McDonnell DP. Research resource: Transcriptional profiling in a cellular model of breast cancer reveals functional and mechanistic differences between clinically relevant SERM and between SERM/estrogen complexes. Mol Endocrinol 2012; 26:1235-48. [PMID: 22570330 DOI: 10.1210/me.2012-1031] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Exploitation of the relationship between estrogen receptor (ER) structure and activity has led to the development of 1) selective ER modulators (SERM), compounds whose relative agonist/antagonist activities differ between target tissues; 2) selective ER degraders (SERD), compounds that induce a conformational change in the receptor that targets it for proteasomal degradation; and 3) tissue-selective estrogen complexes (TSEC), drugs in which a SERM and an ER agonist are combined to yield a blended activity that results in distinct clinical profiles. In this study, we have performed a comprehensive head-to-head analysis of the transcriptional activity of these different classes of ERM in a cellular model of breast cancer. Not surprisingly, these studies highlighted important functional differences and similarities among the existing SERM, selective ER degraders, and TSEC. Of particular importance was the identification of genes that were regulated by various TSEC combinations but not by an estrogen or SERM alone. Cumulatively, the findings of this analysis are informative with respect to the mechanisms by which ER is engaged by different enhancers/promoters and highlights how promoter context influences the pharmacological activity of ER ligands.
Collapse
Affiliation(s)
- Suzanne E Wardell
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Box 3813, Durham, North Carolina 27710, USA
| | | | | |
Collapse
|