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Takayama KI, Suzuki T, Sato K, Saito Y, Inoue S. Cooperative nuclear action of RNA-binding proteins PSF and G3BP2 to sustain neuronal cell viability is decreased in aging and dementia. Aging Cell 2024:e14316. [PMID: 39155453 DOI: 10.1111/acel.14316] [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: 04/18/2024] [Revised: 07/24/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024] Open
Abstract
Dysfunctional RNA-binding proteins (RBPs) have been implicated in several geriatric diseases, including Alzheimer's disease (AD). However, little is known about the nuclear molecular actions and cooperative functions mediated by RBPs that affect gene regulation in sporadic AD or aging. In the present study, we investigated aging- and AD-associated changes in the expression of PSF and G3BP2, which are representative RBPs associated with sex hormone activity. We determined that both PSF and G3BP2 levels were decreased in aged brains compared to young brains of mice. RNA sequencing (RNA-seq) analysis of human neuronal cells has shown that PSF is responsible for neuron-specific functions and sustains cell viability. In addition, we showed that PSF interacted with G3BP2 in the nucleus and stress granules (SGs) at the protein level. Moreover, PSF-mediated gene regulation at the RNA level correlated with G3BP2. Interestingly, PSF and G3BP2 target genes are associated with AD development. Mechanistically, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis demonstrated that the interaction of RBPs with the pre-mRNA of target genes enhanced post-transcriptional mRNA stability, suggesting a possible role for these RBPs in preserving neuronal cell viability. Notably, in the brains of patients with sporadic AD, decreased expression of PSF and G3BP2 in neurons was observed compared to non-AD patients. Overall, our findings suggest that the cooperative action of PSF and G3BP2 in the nucleus is important for preventing aging and AD development.
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Affiliation(s)
- Ken-Ichi Takayama
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan
| | - Takashi Suzuki
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Pathology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Kaoru Sato
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan
- Integrated Research Initiative for Living Well with Dementia, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Yuko Saito
- Department of Neuropathology (the Brain Bank for Aging Research), Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan
| | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan
- Division of Systems Medicine and Gene Therapy, Saitama Medical University, Saitama, Japan
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Qu HL, Sun XY, He C, Chen HS. Sex Differences in the Dual Antiplatelet Therapy Versus Alteplase for Patients with Minor Nondisabling Acute Ischemic Stroke: A Secondary Analysis of the ARAMIS Study. CNS Drugs 2024; 38:649-659. [PMID: 38806883 DOI: 10.1007/s40263-024-01096-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/09/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND AND PURPOSE Sex is associated with clinical outcome in stroke. The present study aimed to determine the effect of sex on efficacy of dual antiplatelet (DAPT) versus alteplase in ischemic stroke based on Antiplatelet versus recombinant tissue plasminogen activator (R-tPA) for Acute Mild Ischemic Stroke (ARAMIS) trial. METHODS In this secondary analysis of the ARAMIS study, eligible patients aged 18 years or older with minor nondisabling stroke who received dual antiplatelet therapy or intravenous alteplase within 4.5 h of stroke onset were divided into two groups: men and women. The primary endpoint was an excellent functional outcome, defined as a modified Rankin Scale (mRS) 0-1 at 90 days. Binary logistic regression analyses and generalized linear models were used. RESULTS Of the 719 patients who completed the study, 31% (223) were women, and 69% (496) were men. There were no significant sex differences in excellent functional outcome (unadjusted p = 0.304 for men and p = 0.993 for women; adjusted p = 0.376 for men and p = 0.918 for women) and favorable functional outcome (mRS score of 0-2; unadjusted p = 0.968 for men and p = 0.881 for women; adjusted p = 0.824 for men and p = 0.881 for women). But for the secondary outcomes, compared with alteplase, DAPT was associated with a significantly decreased proportion of early neurological deterioration within 24 h in men {unadjusted odds ratio [OR] = 0.440 [95% confidence interval (CI), 0.221-0.878]; p = 0.020; adjusted OR = 0.436 [95% CI, 0.216-0.877]; p = 0.020}, but not in women [unadjusted OR = 0.636 (95% CI, 0.175-2.319), p = 0.490; adjusted OR = 0.687 (95% CI, 0.181-2.609), p = 0.581]. For the safety outcomes, compared with the DAPT group, alteplase was associated with a significantly increased proportion of any bleeding events in men [unadjusted OR = 3.110 (95% CI, 1.103-8.770); p = 0.032], but not in women [unadjusted OR = 5.333 (95% CI, 0.613-46.407), p = 0.129; adjusted OR = 5.394 (95% CI, 0.592-49.112), p = 0.135]. CONCLUSION Sex did not influence the effect of dual antiplatelet therapy versus intravenous alteplase in minor nondisabling stroke, but more early neurological deterioration and bleeding events occurred in men who received alteplase.
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Affiliation(s)
- Hui-Ling Qu
- Department of Neurology, The General Hospital of Northern Theater Command, Shenyang, 110016, China
| | - Xiao-Yu Sun
- Department of Neurology, The General Hospital of Northern Theater Command, Shenyang, 110016, China
| | - Chao He
- Department of Neurology, The General Hospital of Northern Theater Command, Shenyang, 110016, China
| | - Hui-Sheng Chen
- Department of Neurology, The General Hospital of Northern Theater Command, Shenyang, 110016, China.
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Chen T, Cui Y, Chen HS. The association of gender with functional outcome in thrombolysed stroke: A secondary analysis of INTRECIS study. Heliyon 2024; 10:e32630. [PMID: 38961923 PMCID: PMC11219987 DOI: 10.1016/j.heliyon.2024.e32630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 07/05/2024] Open
Abstract
Background and Purpose Sex differences in acute ischemic stroke have been widely investigated, but the difference in acute ischemic stroke patients who received intravenous thrombolysis is not well understood. The current study was to investigate the issue based on a prospective cohort. Methods From the Intravenous Thrombolysis Registry for Chinese Ischemic Stroke within 4.5h onset (INTRECIS) cohort, a total of 953 eligible patients with acute ischemic stroke were enrolled in final analysis. Based on 3-month modified Rankin scale score (mRS), patients were classified into good outcome group (mRS 0-1) and poor outcome group (mRS 2-6). Univariate and multivariate logistic regression analyses were used to identify predictive factors for clinical outcome in male or female patients. Results Of the 953 patients treated with intravenous thrombolysis, 314 (32.9 %) were women. At day 90, we found no significant gender differences in good outcome (72.5 % vs 65.6 %, adjusted p = 0.414). We got the same results after propensity score matching (69.5 % vs 63.4 %, adjusted p = 0.637). Furthermore, we found that initial National Institute of Health Stroke Scale (NIHSS) score (odd ratio [OR] 0.877; 95 % CI 0.847-0.909, p < 0.001) and serum creatinine (OR 0.993; 95 % CI 0.986-1.000, p = 0 0.043) were found to be independent risk factors for poor outcome in male patients, while initial NIHSS score (OR 0.879; 95 % CI 0.839-0.920, p < 0.001), age (OR 0.970; 95 % CI 0.946-0.995, p = 0.017), systolic blood pressure (OR 0.984; 95 % CI 0.972-0.996, p = 0.007) and small artery occlusion (OR 2.718; 95 % CI 1.065-6.936, p = 0.036) in female patients. Conclusions In this study, we found no gender difference in clinical outcome of thrombolysed stroke patients, but a difference in risk factors predicting outcome in male vs female patients was identified for the first time.
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Affiliation(s)
- Tong Chen
- Department of Neurology, General Hospital of Northern Theater Command, ShenYang, PR China
| | - Yu Cui
- Department of Neurology, General Hospital of Northern Theater Command, ShenYang, PR China
| | - Hui-Sheng Chen
- Department of Neurology, General Hospital of Northern Theater Command, ShenYang, PR China
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He P, Yu H, Deng X, Xin L, Xu B, Zhou HB, Dong C. Novel estrogen receptor β/histone deacetylase dual-targeted near-infrared fluorescent probes as theranostic agents for imaging and treatment of prostate cancer. Eur J Med Chem 2024; 268:116236. [PMID: 38367494 DOI: 10.1016/j.ejmech.2024.116236] [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] [Received: 10/22/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Estrogen receptor (ER) β and histone deacetylases (HDACs), when overexpressed, are associated closely with the occurrence and development of prostate cancer and are, therefore, considered important targets and biomarkers used in the clinical treatment of prostate cancer. The present study involved the design and synthesis of the first ERβ and HDAC dual-target near-infrared fluorescent probe with both imaging capacity and antitumor activity for prostate cancer. Both P1 and P2 probes exhibited excellent ERβ selectivity, with P1 being almost exclusively selective for ERβ compared to ERα. In addition, P1 exhibited good optical properties, such as strong near-infrared emission, large Stokes shift, and better anti-interference ability, along with excellent imaging ability for living cells. P1 also exhibited potent inhibitory activity against HDAC6 and DU-145 cells, with IC50 values of 52 nM and 0.96 μM, respectively. Further, P1 was applied successfully for the in vivo imaging of prostate cancer in a mouse model, and significant in vivo antitumor efficacy was achieved. The developed dual-target NIR fluorescent probe is expected to serve as an effective tool in the research on prostate cancer, leading to novel insights for the theranostic study of diseases related to ERβ and HDACs.
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Affiliation(s)
- Pei He
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Huiguang Yu
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xiaofei Deng
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Lilan Xin
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Bin Xu
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Hai-Bing Zhou
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China; State Key Laboratory of Virology, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatiorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430071, China.
| | - Chune Dong
- Department of Hematology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China.
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Simms SS, Milani MN, Kim MJ, Husain R, Infante L, Cooke PS, Someya S. Loss of Esr1 Does Not Affect Hearing and Balance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.03.583163. [PMID: 38496399 PMCID: PMC10942324 DOI: 10.1101/2024.03.03.583163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Although estrogen affects the structure and function of the nervous system and brain and has a number of effects on cognition, its roles in the auditory and vestibular systems remain unclear. The actions of estrogen are mediated predominately through two classical nuclear estrogen receptors, estrogen receptor 1 (ESR1) and estrogen receptor 2 (ESR2). In the current study, we investigated the roles of ESR1 in normal auditory function and balance performance using 3-month-old wild-type (WT) and Esr1 knockout (KO) mice on a CBA/CaJ background, a normal-hearing strain. As expected, body weight of Esr1 KO females was lower than that of Esr1 KO males. Body weight of Esr1 KO females was higher than that of WT females, while there was no difference in body weight between WT and Esr1 KO males. Similarly, head diameter was higher in Esr1 KO vs. WT females. Contrary to our expectations, there were no differences in auditory brainstem response (ABR) thresholds, ABR waves I-V amplitudes and ABR waves I-V latencies at 8, 16, 32, and 48 kHz, distortion product otoacoustic emission (DPOAE) thresholds and amplitudes at 8, 16, and 32 kHz, and rotarod balance performance (latency to fall) between WT and Esr1 KO mice. Furthermore, there were no sex differences in ABRs, DPOAEs, and rotarod balance performance in Esr1 KO mice. Taken together, our findings show that Esr1 deficiency does not affect auditory function or balance performance in normal hearing mice, and suggest that loss of Esr1 is likely compensated by ESR2 or other estrogen receptors to maintain the structure and function of the auditory and vestibular systems under normal physiological conditions.
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Affiliation(s)
- Shion S Simms
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Marcus N Milani
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Mi-Jung Kim
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Ryan Husain
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Laura Infante
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Paul S Cooke
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Shinichi Someya
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
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Nerattini M, Jett S, Andy C, Carlton C, Zarate C, Boneu C, Battista M, Pahlajani S, Loeb-Zeitlin S, Havryulik Y, Williams S, Christos P, Fink M, Brinton RD, Mosconi L. Systematic review and meta-analysis of the effects of menopause hormone therapy on risk of Alzheimer's disease and dementia. Front Aging Neurosci 2023; 15:1260427. [PMID: 37937120 PMCID: PMC10625913 DOI: 10.3389/fnagi.2023.1260427] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/25/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction Despite a large preclinical literature demonstrating neuroprotective effects of estrogen, use of menopausal hormone therapy (HT) for Alzheimer's disease (AD) risk reduction has been controversial. Herein, we conducted a systematic review and meta-analysis of HT effects on AD and dementia risk. Methods Our systematic search yielded 6 RCT reports (21,065 treated and 20,997 placebo participants) and 45 observational reports (768,866 patient cases and 5.5 million controls). We used fixed and random effect meta-analysis to derive pooled relative risk (RR) and 95% confidence intervals (C.I.) from these studies. Results Randomized controlled trials conducted in postmenopausal women ages 65 and older show an increased risk of dementia with HT use compared with placebo [RR = 1.38, 95% C.I. 1.16-1.64, p < 0.001], driven by estrogen-plus-progestogen therapy (EPT) [RR = 1.64, 95% C.I. 1.20-2.25, p = 0.002] and no significant effects of estrogen-only therapy (ET) [RR = 1.19, 95% C.I. 0.92-1.54, p = 0.18]. Conversely, observational studies indicate a reduced risk of AD [RR = 0.78, 95% C.I. 0.64-0.95, p = 0.013] and all-cause dementia [RR = .81, 95% C.I. 0.70-0.94, p = 0.007] with HT use, with protective effects noted with ET [RR = 0.86, 95% C.I. 0.77-0.95, p = 0.002] but not with EPT [RR = 0.910, 95% C.I. 0.775-1.069, p = 0.251]. Stratified analysis of pooled estimates indicates a 32% reduced risk of dementia with midlife ET [RR = 0.685, 95% C.I. 0.513-0.915, p = 0.010] and non-significant reductions with midlife EPT [RR = 0.775, 95% C.I. 0.474-1.266, p = 0.309]. Late-life HT use was associated with increased risk, albeit not significant [EPT: RR = 1.323, 95% C.I. 0.979-1.789, p = 0.069; ET: RR = 1.066, 95% C.I. 0.996-1.140, p = 0.066]. Discussion These findings support renewed research interest in evaluating midlife estrogen therapy for AD risk reduction.
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Affiliation(s)
- Matilde Nerattini
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
- Department of Experimental and Clinical Biomedical Sciences, Nuclear Medicine Unit, University of Florence, Florence, Italy
| | - Steven Jett
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Caroline Andy
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, United States
| | - Caroline Carlton
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Camila Zarate
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Camila Boneu
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Michael Battista
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Silky Pahlajani
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
- Department of Radiology, Weill Cornell Medicine, New York, NY, United States
| | - Susan Loeb-Zeitlin
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States
| | - Yelena Havryulik
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States
| | - Schantel Williams
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Paul Christos
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, United States
| | - Matthew Fink
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
| | - Roberta Diaz Brinton
- Department of Neurology and Pharmacology, University of Arizona, Tucson, AZ, United States
| | - Lisa Mosconi
- Department of Neurology, Weill Cornell Medicine, New York, NY, United States
- Department of Experimental and Clinical Biomedical Sciences, Nuclear Medicine Unit, University of Florence, Florence, Italy
- Department of Radiology, Weill Cornell Medicine, New York, NY, United States
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7
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da Silva FER, Cordeiro RC, de Carvalho Lima CN, Cardozo PL, Vasconcelos GS, Monte AS, Sanders LLO, Vasconcelos SMM, de Lucena DF, Cruz BF, Nicolato R, Seeman MV, Ribeiro FM, Macedo DS. Sex and the Estrous-Cycle Phase Influence the Expression of G Protein-Coupled Estrogen Receptor 1 (GPER) in Schizophrenia: Translational Evidence for a New Target. Mol Neurobiol 2023; 60:3650-3663. [PMID: 36917419 DOI: 10.1007/s12035-023-03295-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/24/2023] [Indexed: 03/16/2023]
Abstract
Schizophrenia is a mental disorder with sex bias in disease onset and symptom severity. Recently, it was observed that females present more severe symptoms in the perimenstrual phase of the menstrual cycle. The administration of estrogen also alleviates schizophrenia symptoms. Despite this, little is known about symptom fluctuation over the menstrual cycle and the underlying mechanisms. To address this issue, we worked with the two-hit schizophrenia animal model induced by neonatal exposure to a virus-like particle, Poly I:C, associated with peripubertal unpredictable stress exposure. Prepulse inhibition of the startle reflex (PPI) in male and female mice was considered analogous to human schizophrenia-like behavior. Female mice were studied in the proestrus (high-estrogen estrous cycle phase) and diestrus (low-estrogen phase). Additionally, we evaluated the hippocampal mRNA expression of estrogen synthesis proteins; TSPO and aromatase; and estrogen receptors ERα, ERβ, and GPER. We also collected peripheral blood mononuclear cells (PBMCs) from male and female patients with schizophrenia and converted them to induced microglia-like cells (iMGs) to evaluate the expression of GPER. We observed raised hippocampal expression of GPER in two-hit female mice at the proestrus phase without PPI deficits and higher levels of proteins related to estrogen synthesis, TSPO, and aromatase. In contrast, two-hit adult males with PPI deficits presented lower hippocampal mRNA expression of TSPO, aromatase, and GPER. iMGs from male and female patients with schizophrenia showed lower mRNA expression of GPER than controls. Therefore, our results suggest that GPER alterations constitute an underlying mechanism for sex influence in schizophrenia.
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Affiliation(s)
- Francisco Eliclécio Rodrigues da Silva
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil
| | - Rafaela Carneiro Cordeiro
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil.,University of Texas Health Science Center at Houston, Houston, USA
| | - Camila N de Carvalho Lima
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil.,University of Texas Health Science Center at Houston, Houston, USA
| | - Pablo Leal Cardozo
- Department of Biochemistry and Immunology, Institute of Biological Sciences (ICB), Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Germana Silva Vasconcelos
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil
| | - Aline Santos Monte
- Health Science Institute, University of International Integration of Afro-Brazilian Lusophony UNILAB, Redenção, Brazil
| | - Lia Lira Olivier Sanders
- Course of Medicine, Centro Universitário Christus-Unichristus, Fortaleza, Brazil.,Department of Clinical Medicine, Federal University of Ceara, Fortaleza, Brazil
| | - Silvânia Maria Mendes Vasconcelos
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil
| | - David Freitas de Lucena
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil
| | - Breno Fiuza Cruz
- Department of Mental Health, Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo Nicolato
- Department of Mental Health, Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mary V Seeman
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Fabíola Mara Ribeiro
- Department of Biochemistry and Immunology, Institute of Biological Sciences (ICB), Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Danielle S Macedo
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Cel. Nunes de Melo 1000, 60430-275, CE, Fortaleza, Brazil. .,National Institute for Translational Medicine (INCT-TM, CNPq), São Paulo, Brazil.
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8
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Kim MJ, Carmichael PB, Bose U, Honkura Y, Suzuki J, Ding D, Erfe SL, Simms SS, Avaiya KA, Milani MN, Rymer EJ, Fragnito DT, Strom N, Salvi R, Someya S. Sex differences in body composition, voluntary wheel running activity, balance performance, and auditory function in CBA/CaJ mice across the lifespan. Hear Res 2023; 428:108684. [PMID: 36599258 PMCID: PMC11446250 DOI: 10.1016/j.heares.2022.108684] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 12/12/2022] [Accepted: 12/26/2022] [Indexed: 12/28/2022]
Abstract
Hearing loss is the third most prevalent chronic health condition affecting older adults and age-related hearing loss (ARHL) is the most common form of hearing impairment. Significant sex differences in hearing have been documented in humans and rodents. In general, the results of these studies show that men lose their hearing more rapidly than women. However, the cellular mechanism underlying sex differences in hearing or hearing loss remains largely unknown, and to our knowledge, there is no well-established animal model for studying sex differences in hearing. In the current study, we examined sex differences in body composition, voluntary wheel running activity, balance performance, auditory function, and cochlear histology in young, middle-age, and old CBA/CaJ mice, a model of age-related hearing loss. As expected, body weight of young females was lower than that of males. Similarly, lean mass and total water mass of young, middle-age, and old females were lower than those of males. Young females showed higher voluntary wheel running activity during the dark cycle, an indicator of mobility, physical activity, and balance status, compared to males. Young females also displayed higher auditory brainstem response (ABR) wave I amplitudes at 8 kHz, wave II, III, V amplitudes at 8 and 48 kHz, and wave IV/I and V/I amplitude ratios at 48 kHz compared to males. Collectively, our findings suggest that the CBA/CaJ mouse strain is a useful model to study the cellular mechanisms underlying sex differences in physical activity and hearing.
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Affiliation(s)
- Mi-Jung Kim
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Peter B Carmichael
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Upal Bose
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Yohei Honkura
- Department of Otolaryngology-Head &Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jun Suzuki
- Department of Otolaryngology-Head &Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Dalian Ding
- Center for Hearing and Deafness, State University of New York at Buffalo, NY, USA
| | - Samantha L Erfe
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA; Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Shion S Simms
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Kishan A Avaiya
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Marcus N Milani
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Elizabeth J Rymer
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Daniella T Fragnito
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Nathan Strom
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA
| | - Richard Salvi
- Center for Hearing and Deafness, State University of New York at Buffalo, NY, USA
| | - Shinichi Someya
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA; Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, USA.
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9
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Benković V, Milić M, Oršolić N, Horvat Knežević A, Brozović G, Borojević N. Brain DNA damaging effects of volatile anesthetics and 1 and 2 Gy gamma irradiation in vivo: Preliminary results. Toxicol Ind Health 2023; 39:67-80. [PMID: 36602468 DOI: 10.1177/07482337221145599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Although both can cause DNA damage, the combined impact of volatile anesthetics halothane/sevoflurane/isoflurane and radiotherapeutic exposure on sensitive brain cells in vivo has not been previously analyzed. Healthy Swiss albino male mice (240 in total, 48 groups) were exposed to either halothane/sevoflurane/isoflurane therapeutic doses alone (2 h); 1 or 2 gray of gamma radiation alone; or combined exposure. Frontal lobe brain samples from five animals were taken immediately and 2, 6, and 24 h after exposure. DNA damage and cellular repair index were analyzed using the alkaline comet assay and the tail intensity parameter. Elevated tail intensity levels for sevoflurane/halothane were the highest at 6 h and returned to baseline within 24 h for sevoflurane, but not for halothane, while isoflurane treatment caused lower tail intensity than control values. Combined exposure demonstrated a slightly halothane/sevoflurane protective and isoflurane protective effect, which was stronger for 2 than for 1 gray. Cellular repair indices and tail intensity histograms indicated different modes of action in DNA damage creation. Isoflurane/sevoflurane/halothane preconditioning demonstrated protective effects in sensitive brain cells in vivo. Owing to the constant increases in the combined use of radiotherapy and volatile anesthetics, further studies should explore the mechanisms behind these effects, including longer and multiple exposure treatments and in vivo brain tumor models.
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Affiliation(s)
- Vesna Benković
- Faculty of Science, 117036University of Zagreb, Zagreb, Croatia
| | - Mirta Milić
- Mutagenesis Unit, 118938Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Nada Oršolić
- Faculty of Science, 117036University of Zagreb, Zagreb, Croatia
| | | | - Gordana Brozović
- Department of Anesthesiology, Reanimatology and ICU, University Hospital for Tumors, 499232Sestre Milosrdnice University Hospital Centre, Zagreb, Croatia.,Faculty of Dental Medicine and Health, 84992University of Osijek, Osijek, Croatia
| | - Nikola Borojević
- 8256Warrington and Halton Teaching Hospitals NHS Foundation Trust, Warrington, UK
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10
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López-Taboada I, Sal-Sarria S, Vallejo G, Coto-Montes A, Conejo NM, González-Pardo H. Sexual dimorphism in spatial learning and brain metabolism after exposure to a western diet and early life stress in rats. Physiol Behav 2022; 257:113969. [PMID: 36181786 DOI: 10.1016/j.physbeh.2022.113969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/17/2022] [Accepted: 09/22/2022] [Indexed: 01/06/2023]
Abstract
Prolonged daily intake of Western-type diet rich in saturated fats and sugars, and exposure to early life stress have been independently linked to impaired neurodevelopment and behaviour in animal models. However, sex-specific effects of both environmental factors combined on spatial learning and memory, behavioural flexibility, and brain oxidative capacity have still not been addressed. The current study aimed to evaluate the impact of maternal and postnatal exposure to a high-fat and high-sugar diet (HFS), and exposure to early life stress by maternal separation in adult male and female Wistar rats. For this purpose, spatial learning and memory and behavioural flexibility were evaluated in the Morris water maze, and regional brain oxidative capacity and oxidative stress levels were measured in the hippocampus and medial prefrontal cortex. Spatial memory, regional brain oxidative metabolism, and levels of oxidative stress differed between females and males, suggesting sexual dimorphism in the effects of a HFS diet and early life stress. Males fed the HFS diet performed better than all other experimental groups independently of early life stress exposure. However, behavioural flexibility evaluated in the spatial reversal leaning task was impaired in males fed the HFS diet. In addition, exposure to maternal separation or the HFS diet increased the metabolic capacity of the prefrontal cortex and dorsal hippocampus in males and females. Levels of oxidative stress measured in the latter brain regions were also increased in groups fed the HFS diet, but maternal separation seemed to dampen regional brain oxidative stress levels. Therefore, these results suggest a compensatory effect resulting from the interaction between prolonged exposure to a HFS diet and early life stress.
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Affiliation(s)
- Isabel López-Taboada
- Laboratory of Neuroscience, Department of Psychology, Faculty of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003, Oviedo, Spain; Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario s/n, 33011 Oviedo, Spain
| | - Saúl Sal-Sarria
- Laboratory of Neuroscience, Department of Psychology, Faculty of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003, Oviedo, Spain; Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Guillermo Vallejo
- Methodology area, Department of Psychology, Faculty of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003 Oviedo, Spain
| | - Ana Coto-Montes
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario s/n, 33011 Oviedo, Spain; Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Julián Clavería s/n, 33006 Oviedo, Spain
| | - Nélida M Conejo
- Laboratory of Neuroscience, Department of Psychology, Faculty of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003, Oviedo, Spain; Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario s/n, 33011 Oviedo, Spain.
| | - Héctor González-Pardo
- Laboratory of Neuroscience, Department of Psychology, Faculty of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003, Oviedo, Spain; Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario s/n, 33011 Oviedo, Spain
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11
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Wilson A, Stevens WD, Sergio L, Wojtowicz M. Altered Brain Functional Connectivity in Female Athletes Over the Course of a Season of Collision or Contact Sports. Neurotrauma Rep 2022; 3:377-387. [PMID: 36204391 PMCID: PMC9531888 DOI: 10.1089/neur.2022.0010] [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] [Indexed: 11/13/2022] Open
Abstract
University athletes are exposed to numerous impacts to the body and head, though the potential cumulative effects of such hits remain elusive. This study examined resting-state functional connectivity (rsFC) of brain networks in female varsity athletes over the course of a season. Nineteen female university athletes involved in collision (N = 12) and contact (N = 7) sports underwent functional magnetic resonance imaging scans at both pre- and post-season. A group-level independent component analysis (ICA) was used to investigate differences in rsFC over the course of a season and differences between contact and collision sport athletes. Decreased rsFC was observed over the course of the season between the default mode network (DMN) and regions in the frontal, parietal, and occipital lobe (p false discovery rate, ≤0.05) driven by differences in the contact group. There was also a main effect of group in the dorsal attention network (DAN) driven by differences between contact and collision groups at pre-season. Differences identified over the course of a season of play indicate largely decreased rsFC within the DMN, and level of contact was associated with differences in rsFC of the DAN. The association between exposure to repetitive head impacts (RHIs) and observed changes in network rsFC supplements the growing literature suggesting that even non-concussed athletes may be at risk for changes in brain functioning. However, the complexity of examining the direct effects of RHIs highlights the need to consider multiple factors, including mental health and sport-specific training and expertise, that may potentially be associated with neural changes.
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Affiliation(s)
- Alyssia Wilson
- Department of Psychology, York University, Toronto, Ontario, Canada
| | - W. Dale Stevens
- Department of Psychology, York University, Toronto, Ontario, Canada
| | - Lauren Sergio
- School of Kinesiology, York University, Toronto, Ontario, Canada
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12
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Winek K, Tzur Y, Soreq H. Biological underpinnings of sex differences in neurological disorders. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 164:27-67. [PMID: 36038206 DOI: 10.1016/bs.irn.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The importance of sex differences in neurological disorders has been increasingly acknowledged in recent clinical and basic research studies, but the complex biology and genetics underlying sex-linked biological heterogeneity and its brain-to-body impact remained incompletely understood. Men and women differ substantially in their susceptibility to certain neurological diseases, in the severity of symptoms, prognosis as well as the nature and efficacy of their response to treatments. The detailed mechanisms underlying these differences, especially at the molecular level, are being addressed in many studies but leave a lot to be further revealed. Here, we provide an overview of recent advances in our understanding of how sex differences in the brain and brain-body signaling contribute to neurological disorders and further present some future prospects entailed in terms of diagnostics and therapeutics.
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Affiliation(s)
- Katarzyna Winek
- The Edmond & Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel; The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yonat Tzur
- The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hermona Soreq
- The Edmond & Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel; The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
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13
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Wang T, He K, Blaney L, Chung JS. 17β-Estradiol (E2) may be involved in the mode of crustacean female sex hormone (CFSH) action in the blue crab, Callinectes sapidus. Front Endocrinol (Lausanne) 2022; 13:962576. [PMID: 35957817 PMCID: PMC9358259 DOI: 10.3389/fendo.2022.962576] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/28/2022] [Indexed: 11/23/2022] Open
Abstract
17β-estradiol (E2) has been proved to control reproduction, sexual differentiation, and the development of the secondary sexual characteristics of vertebrate females. In decapod crustacean species, crustacean female sex hormone (CFSH), a protein hormone, is required for developing adult-specific ovigerous setae for embryo brooding and gonophores for mating at the blue crab Callinectes sapidus puberty molting. However, it is unclear that whether the mode of CFSH action involves a vertebrate-type sex steroid hormone in crustaceans. To this end, E2 levels were first measured using a competitive ELISA in the hemolymph and the potential CFSH target tissues from both prepuberty and adult females; the presence of E2 was further confirmed with a liquid chromatography tandem mass spectrometry method. Then, the cDNAs of the following genes known to be associated with vertebrate steroidogenic pathways were isolated: StAR-related lipid transfer protein 3 (StAR3); 3β-hydroxysteroid dehydrogenase (3βHSD); two isoforms of 17β-hydroxysteroid dehydrogenase 8 (17βHSD8); and, estradiol-related receptor (ERR). RT-PCR analysis revealed that these genes were widely distributed in the eyestalk ganglia, hepatopancreas, brain, ovary, spermathecae, ovigerous and plumose setae tissues of adult females. The 17βHSD8 transcripts were localized in the follicle cells, the periphery of the nuclear membrane of primary oocytes, and yolk granules of the vitellogenic oocytes using in situ hybridization, and the corresponding protein was detected in the follicle cells and ooplasm of primary oocytes using immunohistochemistry. Furthermore, the adult females injected with CFSH-dsRNA (n = 30 times) had E2 and StAR3 transcripts levels lower in the ovigerous and plumose setae, spermathecae than controls. These results suggested that the mode of CFSH action in C. sapidus might involve E2 in these adult-female-specific tissues.
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Affiliation(s)
- Tao Wang
- Department of Marine Biotechnology & Institute of Marine and Environmental Technology, University of Maryland Baltimore County, Baltimore, MD, United States
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD, United States
| | - Ke He
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD, United States
| | - Lee Blaney
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD, United States
| | - J. Sook Chung
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD, United States
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14
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Song CH, Kim N, Nam RH, Choi SI, Jang JY, Kim JW, Na HY, Lee HN. Combination treatment with 17β-estradiol and anti-PD-L1 suppresses MC38 tumor growth by reducing PD-L1 expression and enhancing M1 macrophage population in MC38 colon tumor model. Cancer Lett 2022; 543:215780. [PMID: 35690286 DOI: 10.1016/j.canlet.2022.215780] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/20/2022] [Accepted: 06/05/2022] [Indexed: 11/28/2022]
Abstract
17β-estradiol (E2) is known to have a protective effect in colorectal cancer (CRC); thus, E2 may be effective for cancer immunotherapy in CRC. The aim of this study is to evaluate the effect of combination therapy with E2 and anti-programmed cell death receptor-1 ligand (PD-L1) antibodies, and the effects of sex and estrogen on colon tumor growth, PD-L1 expression, and tumor-associated cell populations in an MC38 colon tumor model. Male mice showed increased MC38 colon tumor growth and PD-L1 expression in tumor sections as well as higher proportion of cancer-associated fibroblasts (CD45-CD31-CD140a+), PD-L1-expressing tumor cells (CD45-CD274+) and tumor-associated macrophages (TAMs) (CD11b+F4/80+CD274+) compared to female mice. E2 treatment prior to MC38 injection significantly reduced these phenomena in male mice. Furthermore, co-treatment with E2 and anti-PD-L1 antibodies significantly inhibited MC38 tumor growth and reduced PD-L1-expressing cells in male mice compared to treatment with either E2 or anti-PD-L1 antibodies alone. Combination treatment with E2 and anti-PD-L1 decreased TAM population (CD11b+F4/80+) in the tumor mass while increasing M1 TMAs (CD11b+F4/80+CD86+). These results suggest that estrogen inhibits MC38 tumor growth by downregulating PD-L1 expression and regulating tumor-associated cell populations. Furthermore, estrogen boosted the effect of anti-PD-L1 antibody in the MC38 tumor model.
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Affiliation(s)
- Chin-Hee Song
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Nayoung Kim
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea; Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
| | - Ryoung Hee Nam
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Soo In Choi
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Jae Young Jang
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Jin Won Kim
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Hee Young Na
- Pathology, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Ha-Na Lee
- Laboratory of Immunology, Division of Biotechnology Review and Research-III, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD, 20993, USA
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15
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Antal B, McMahon LP, Sultan SF, Lithen A, Wexler DJ, Dickerson B, Ratai EM, Mujica-Parodi LR. Type 2 diabetes mellitus accelerates brain aging and cognitive decline: Complementary findings from UK Biobank and meta-analyses. eLife 2022; 11:73138. [PMID: 35608247 PMCID: PMC9132576 DOI: 10.7554/elife.73138] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 04/26/2022] [Indexed: 01/17/2023] Open
Abstract
Background Type 2 diabetes mellitus (T2DM) is known to be associated with neurobiological and cognitive deficits; however, their extent, overlap with aging effects, and the effectiveness of existing treatments in the context of the brain are currently unknown. Methods We characterized neurocognitive effects independently associated with T2DM and age in a large cohort of human subjects from the UK Biobank with cross-sectional neuroimaging and cognitive data. We then proceeded to evaluate the extent of overlap between the effects related to T2DM and age by applying correlation measures to the separately characterized neurocognitive changes. Our findings were complemented by meta-analyses of published reports with cognitive or neuroimaging measures for T2DM and healthy controls (HCs). We also evaluated in a cohort of T2DM-diagnosed individuals using UK Biobank how disease chronicity and metformin treatment interact with the identified neurocognitive effects. Results The UK Biobank dataset included cognitive and neuroimaging data (N = 20,314), including 1012 T2DM and 19,302 HCs, aged between 50 and 80 years. Duration of T2DM ranged from 0 to 31 years (mean 8.5 ± 6.1 years); 498 were treated with metformin alone, while 352 were unmedicated. Our meta-analysis evaluated 34 cognitive studies (N = 22,231) and 60 neuroimaging studies: 30 of T2DM (N = 866) and 30 of aging (N = 1088). Compared to age, sex, education, and hypertension-matched HC, T2DM was associated with marked cognitive deficits, particularly in executive functioning and processing speed. Likewise, we found that the diagnosis of T2DM was significantly associated with gray matter atrophy, primarily within the ventral striatum, cerebellum, and putamen, with reorganization of brain activity (decreased in the caudate and premotor cortex and increased in the subgenual area, orbitofrontal cortex, brainstem, and posterior cingulate cortex). The structural and functional changes associated with T2DM show marked overlap with the effects correlating with age but appear earlier, with disease duration linked to more severe neurodegeneration. Metformin treatment status was not associated with improved neurocognitive outcomes. Conclusions The neurocognitive impact of T2DM suggests marked acceleration of normal brain aging. T2DM gray matter atrophy occurred approximately 26% ± 14% faster than seen with normal aging; disease duration was associated with increased neurodegeneration. Mechanistically, our results suggest a neurometabolic component to brain aging. Clinically, neuroimaging-based biomarkers may provide a valuable adjunctive measure of T2DM progression and treatment efficacy based on neurological effects. Funding The research described in this article was funded by the W. M. Keck Foundation (to LRMP), the White House Brain Research Through Advancing Innovative Technologies (BRAIN) Initiative (NSFNCS-FR 1926781 to LRMP), and the Baszucki Brain Research Fund (to LRMP). None of the funding sources played any role in the design of the experiments, data collection, analysis, interpretation of the results, the decision to publish, or any aspect relevant to the study. DJW reports serving on data monitoring committees for Novo Nordisk. None of the authors received funding or in-kind support from pharmaceutical and/or other companies to write this article.
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Affiliation(s)
- Botond Antal
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States
| | - Liam P McMahon
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States
| | - Syed Fahad Sultan
- Department of Computer Science, Stony Brook University, Stony Brook, United States
| | - Andrew Lithen
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States
| | - Deborah J Wexler
- Diabetes Center, Massachusetts General Hospital and Harvard Medical School, Boston, United States
| | - Bradford Dickerson
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States.,Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, United States
| | - Eva-Maria Ratai
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States
| | - Lilianne R Mujica-Parodi
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States.,Department of Neurology, Stony Brook University School of Medicine, Stony Brook, United States
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16
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Jett S, Malviya N, Schelbaum E, Jang G, Jahan E, Clancy K, Hristov H, Pahlajani S, Niotis K, Loeb-Zeitlin S, Havryliuk Y, Isaacson R, Brinton RD, Mosconi L. Endogenous and Exogenous Estrogen Exposures: How Women's Reproductive Health Can Drive Brain Aging and Inform Alzheimer's Prevention. Front Aging Neurosci 2022; 14:831807. [PMID: 35356299 PMCID: PMC8959926 DOI: 10.3389/fnagi.2022.831807] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/07/2022] [Indexed: 01/14/2023] Open
Abstract
After advanced age, female sex is the major risk factor for late-onset Alzheimer's disease (AD), the most common cause of dementia affecting over 24 million people worldwide. The prevalence of AD is higher in women than in men, with postmenopausal women accounting for over 60% of all those affected. While most research has focused on gender-combined risk, emerging data indicate sex and gender differences in AD pathophysiology, onset, and progression, which may help account for the higher prevalence in women. Notably, AD-related brain changes develop during a 10-20 year prodromal phase originating in midlife, thus proximate with the hormonal transitions of endocrine aging characteristic of the menopause transition in women. Preclinical evidence for neuroprotective effects of gonadal sex steroid hormones, especially 17β-estradiol, strongly argue for associations between female fertility, reproductive history, and AD risk. The level of gonadal hormones to which the female brain is exposed changes considerably across the lifespan, with relevance to AD risk. However, the neurobiological consequences of hormonal fluctuations, as well as that of hormone therapies, are yet to be fully understood. Epidemiological studies have yielded contrasting results of protective, deleterious and null effects of estrogen exposure on dementia risk. In contrast, brain imaging studies provide encouraging evidence for positive associations between greater cumulative lifetime estrogen exposure and lower AD risk in women, whereas estrogen deprivation is associated with negative consequences on brain structure, function, and biochemistry. Herein, we review the existing literature and evaluate the strength of observed associations between female-specific reproductive health factors and AD risk in women, with a focus on the role of endogenous and exogenous estrogen exposures as a key underlying mechanism. Chief among these variables are reproductive lifespan, menopause status, type of menopause (spontaneous vs. induced), number of pregnancies, and exposure to hormonal therapy, including hormonal contraceptives, hormonal therapy for menopause, and anti-estrogen treatment. As aging is the greatest risk factor for AD followed by female sex, understanding sex-specific biological pathways through which reproductive history modulates brain aging is crucial to inform preventative and therapeutic strategies for AD.
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Affiliation(s)
- Steven Jett
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Niharika Malviya
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Eva Schelbaum
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Grace Jang
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Eva Jahan
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Katherine Clancy
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Hollie Hristov
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Silky Pahlajani
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
- Department of Radiology, Weill Cornell Medical College, New York, NY, United States
| | - Kellyann Niotis
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Susan Loeb-Zeitlin
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, United States
| | - Yelena Havryliuk
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, United States
| | - Richard Isaacson
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Roberta Diaz Brinton
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States
- Department of Neurology, University of Arizona, Tucson, AZ, United States
| | - Lisa Mosconi
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
- Department of Radiology, Weill Cornell Medical College, New York, NY, United States
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17
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Relationship between serum gonadal hormone levels and synkinesis in postmenopausal women and man with idiopathic facial paralysis. Auris Nasus Larynx 2022; 49:782-789. [DOI: 10.1016/j.anl.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/17/2022] [Accepted: 02/13/2022] [Indexed: 11/22/2022]
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18
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Szoeke C, Downie SJ, Parker AF, Phillips S. Sex hormones, vascular factors and cognition. Front Neuroendocrinol 2021; 62:100927. [PMID: 34119528 DOI: 10.1016/j.yfrne.2021.100927] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 05/27/2021] [Accepted: 06/06/2021] [Indexed: 11/25/2022]
Abstract
After more than a century of research, we have failed to develop a pharmacological prevention or cure for dementia. There are strong indicators that sex hormones influence cognition. In this paper we discuss the role of these hormones at the intersection between vascular disease and dementia, in light of the mounting literature covering the shared risk factors, pathological features alongside the timeline of hormonal change with the evolution of vascular and neurodegenerative disease. Interactive risk factors and the role of inflammation over the duration of disease evolution are highlighted. Our summary tables assessing the impact of estrogen-based hormone therapy on cognition over the past 45 years illustrate the effort expended to determine the ideal age for intervention and the type, dose, administration, and duration of therapy that might improve or protect cognition as well as alleviate menopausal symptoms. As the prevalence of dementia is rising and is higher in women, it is crucial we advance our knowledge from the "inconclusive" position statement on menopausal hormone therapy of the US Preventive Services Task Force.
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Affiliation(s)
- C Szoeke
- Healthy Ageing Program, Centre for Medical Research (Royal Melbourne Hospital), Faculty of Medicine Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia.
| | - S J Downie
- Healthy Ageing Program, Centre for Medical Research (Royal Melbourne Hospital), Faculty of Medicine Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - A F Parker
- Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
| | - S Phillips
- Healthy Ageing Program, Centre for Medical Research (Royal Melbourne Hospital), Faculty of Medicine Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
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19
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Dall’Aglio L, Lewis CM, Pain O. Delineating the Genetic Component of Gene Expression in Major Depression. Biol Psychiatry 2021; 89:627-636. [PMID: 33279206 PMCID: PMC7886308 DOI: 10.1016/j.biopsych.2020.09.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/17/2020] [Accepted: 09/08/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Major depression (MD) is determined by a multitude of factors including genetic risk variants that regulate gene expression. We examined the genetic component of gene expression in MD by performing a transcriptome-wide association study (TWAS), inferring gene expression-trait relationships from genetic, transcriptomic, and phenotypic information. METHODS Genes differentially expressed in depression were identified with the TWAS FUSION method, based on summary statistics from the largest genome-wide association analysis of MD (n = 135,458 cases, n = 344,901 controls) and gene expression levels from 21 tissue datasets (brain; blood; thyroid, adrenal, and pituitary glands). Follow-up analyses were performed to extensively characterize the identified associations: colocalization, conditional, and fine-mapping analyses together with TWAS-based pathway investigations. RESULTS Transcriptome-wide significant differences between cases and controls were found at 94 genes, approximately half of which were novel. Of the 94 significant genes, 6 represented strong, colocalized, and potentially causal associations with depression. Such high-confidence associations include NEGR1, CTC-467M3.3, TMEM106B, LRFN5, ESR2, and PROX2. Lastly, TWAS-based enrichment analysis highlighted dysregulation of gene sets for, among others, neuronal and synaptic processes. CONCLUSIONS This study sheds further light on the genetic component of gene expression in depression by characterizing the identified associations, unraveling novel risk genes, and determining which associations are congruent with a causal model. These findings can be used as a resource for prioritizing and designing subsequent functional studies of MD.
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Affiliation(s)
- Lorenza Dall’Aglio
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom,Department of Child and Adolescent Psychiatry, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands,Generation R Study Group, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Cathryn M. Lewis
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom,Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King’s College London, London, United Kingdom
| | - Oliver Pain
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.
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Suriyakalaa U, Ramachandran R, Doulathunnisa JA, Aseervatham SB, Sankarganesh D, Kamalakkannan S, Kadalmani B, Angayarkanni J, Akbarsha MA, Achiraman S. Upregulation of Cyp19a1 and PPAR-γ in ovarian steroidogenic pathway by Ficus religiosa: A potential cure for polycystic ovary syndrome. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113540. [PMID: 33152430 DOI: 10.1016/j.jep.2020.113540] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 08/03/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Quite a few plants are in use to treat female infertility and associated problems. Availing the cues from traditional knowledge, phytochemical studies and ethnopharmacological evidences, the aphrodisiac plant Ficus religiosa (F. religiosa) is widely in use to cure infertility in women. For instance, the juice of leaf and aerial root of F. religiosa is reported to normalize the dysregulated menstrual cycle in women. Besides, it is believed that regular circumambulation of F. religiosa during the early hours of the morning helps women in alleviating infertility which could be attributed to the potential phytovolatiles released from F. religiosa. However, the evidences for therapeutic potential of F. religiosa in treating female infertility are arbitrary and mostly anecdotal. AIM OF THE STUDY The present study was aimed at examining if extracts of fresh and/or dry leaf of F. religiosa would cure polycystic ovary syndrome (PCOS) in the rat model. METHODS Rats were divided into seven groups; control (Group I), PCOS-induced (P.O, Letrozole -1 mg/kg BW for 21 days) and untreated (Group II), PCOS-induced and treated with the leaf extracts of F. religiosa (Groups III-VI), and, PCOS-induced and treated with pioglitazone (Group VII). The estrous intervals, body and organ weights (ovary and uterus), and serum hormones (testosterone, luteinizing hormone [LH], estrogen, and progesterone) were measured, and the expression of Cyp19a1 (aromatase), and Peroxisome Proliferator-Activated Receptor-γ (PPAR-γ) were assessed in the experimental rats. The levels of 3β-hydroxysteroid dehydrogenase (3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), and antioxidants (MDA, GSH, GPx, SOD, and CAT) were also quantified. Besides, the putative volatile compounds in the esterified leaf extracts were identified using Gas Chromatography-Mass Spectrometry (GC-MS). RESULTS Letrozole treatment induced irregular estrous and altered weight of organs and hormonal milieu, which were reverted to normal in leaf extracts-treated PCOS-induced rats. Remarkably, fresh leaf treatment up-regulated Cyp19a1and PPAR-γ and increased the levels of 3β-HSD and 17β-HSD. We found 3-acetoxy-3-hydroxy-propionic acid in fresh and dry leaf extracts, which we attribute to efficacy of the extracts in alleviating PCOS. CONCLUSION Put together, our findings suggest the leaves of F. religiosa as potential in alleviating PCOS, mainly due to the presence of putative volatile molecules. Further screening of the leaves of F. religiosa is recommended to identify other key molecules and to develop a systematic therapeutic intervention for PCOS.
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Affiliation(s)
- Udhayaraj Suriyakalaa
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; PG and Research Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, 641028, Tamilnadu, India
| | - Rajamanickam Ramachandran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | - Jaffar Ali Doulathunnisa
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Smilin Bell Aseervatham
- PG and Research Department of Biotechnology and Bioinformatics, Holy Cross College (Autonomous), Tiruchirappalli, 620002, Tamilnadu, India
| | - Devaraj Sankarganesh
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; Department of Biotechnology, School of Bio- and Chemical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, 626126, Tamilnadu, India
| | | | - Balamuthu Kadalmani
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India
| | - Jayaraman Angayarkanni
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | | | - Shanmugam Achiraman
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India.
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17β-Estradiol strongly inhibits azoxymethane/dextran sulfate sodium-induced colorectal cancer development in Nrf2 knockout male mice. Biochem Pharmacol 2020; 182:114279. [PMID: 33068552 DOI: 10.1016/j.bcp.2020.114279] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/18/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022]
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) has dual effects on inflammation and cancer progression depending on the microenvironment. Estrogens have a protective effect on colorectal cancer (CRC) development. The aim of this study was to investigate CRC development in Nrf2 knockout (KO) mice. Azoxymethane (AOM) and dextran sulfate sodium (DSS)-treated wild-type (WT) and Nrf2 KO male mice were sacrificed at weeks 2 and 16 after AOM injection with/without 17β-estradiol (E2) treatment during week 1. Disease activity index and colon tissue damage at week 2 showed strong attenuation following E2 administration in WT mice but to a lesser extent in Nrf2 KO male mice. At week 16, E2 significantly diminished AOM/DSS-induced adenoma/cancer incidence at distal colon in the Nrf2 KO group, but not in the WT. Furthermore, mRNA or protein levels of NF-κB-related mediators (i.e., iNOS, TNF-α, and IL-1β) and Nrf2-related antioxidants (i.e., NQO1 and HO-1) were significantly lower in the Nrf2 KO group regardless of E2 treatment compared to the WT. The expression of estrogen receptor beta (ERβ) was higher in the Nrf2 KO group than in the WT. In conclusion, estrogen further inhibits CRC by upregulating ERβ-related alternate pathways in the absence of Nrf2.
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Someya S, Kim MJ. Cochlear detoxification: Role of alpha class glutathione transferases in protection against oxidative lipid damage, ototoxicity, and cochlear aging. Hear Res 2020; 402:108002. [PMID: 32600853 DOI: 10.1016/j.heares.2020.108002] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 02/06/2023]
Abstract
Age-related hearing loss (AHL) is the most common form of hearing impairment. AHL is thought to be a multifactorial condition resulting from the interaction of numerous causes including aging, genetics, exposure to noise, and exposure to endogenous and exogenous toxins. Cells possess many detoxification enzymes capable of removing thousands of cytotoxic xenobiotics and endogenous toxins such as 4-hydroxynonenal (4-HNE), one of the most abundant cytotoxic end products of lipid peroxidation. The cellular detoxification system involves three phases of enzymatic detoxification. Of these, the glutathione transferase (GST) detoxification system converts a toxic compound into a less toxic form by conjugating the toxic compound to reduced glutathione by GST enzymes. In this review, we describe the current understanding of the cochlear detoxification system and examine the growing link between GST detoxification, oxidative lipid damage, ototoxicity, and cochlear aging with a particular focus on the alpha-class GSTs (GSTAs). We also describe how exposure to ototoxic drugs, exposure to noise, or aging results in increased 4-HNE levels, how 4-HNE damages various cell components under stress conditions, and how GSTAs detoxify 4-HNE in the auditory system.
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Affiliation(s)
- Shinichi Someya
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, 32611, USA.
| | - Mi-Jung Kim
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, 32611, USA
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Tower J, Pomatto LCD, Davies KJA. Sex differences in the response to oxidative and proteolytic stress. Redox Biol 2020; 31:101488. [PMID: 32201219 PMCID: PMC7212483 DOI: 10.1016/j.redox.2020.101488] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 02/20/2020] [Accepted: 02/29/2020] [Indexed: 12/16/2022] Open
Abstract
Sex differences in diseases involving oxidative and proteolytic stress are common, including greater ischemic heart disease, Parkinson disease and stroke in men, and greater Alzheimer disease in women. Sex differences are also observed in stress response of cells and tissues, where female cells are generally more resistant to heat and oxidative stress-induced cell death. Studies implicate beneficial effects of estrogen, as well as cell-autonomous effects including superior mitochondrial function and increased expression of stress response genes in female cells relative to male cells. The p53 and forkhead box (FOX)-family genes, heat shock proteins (HSPs), and the apoptosis and autophagy pathways appear particularly important in mediating sex differences in stress response.
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Affiliation(s)
- John Tower
- Molecular and Computational Biology Program, Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, USA; Leonard Davis School of Gerontology, Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA90089, USA.
| | - Laura C D Pomatto
- National Institute on General Medical Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Kelvin J A Davies
- Molecular and Computational Biology Program, Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, USA; Leonard Davis School of Gerontology, Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA90089, USA; Department of Biochemistry & Molecular Medicine, Keck School of Medicine of USC, University of Southern California, USA
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17β-Estradiol Delivered in Eye Drops: Evidence of Impact on Protein Networks and Associated Biological Processes in the Rat Retina through Quantitative Proteomics. Pharmaceutics 2020; 12:pharmaceutics12020101. [PMID: 32012756 PMCID: PMC7076522 DOI: 10.3390/pharmaceutics12020101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/22/2020] [Accepted: 01/22/2020] [Indexed: 11/17/2022] Open
Abstract
To facilitate the development of broad-spectrum retina neuroprotectants that can be delivered through topical dosage forms, this proteomics study focused on analyzing target engagements through the identification of functional protein networks impacted after delivery of 17β-estradiol in eye drops. Specifically, the retinae of ovariectomized Brown Norway rats treated with daily eye drops of 17β-estradiol for three weeks were compared to those of vehicle-treated ovariectomized control animals. We searched the acquired raw data against a composite protein sequence database by using Mascot, as well as employed label-free quantification to detect changes in protein abundances. Our investigation using rigorous validation criteria revealed 331 estrogen-regulated proteins in the rat retina (158 were up-regulated, while 173 were down-regulated by 17β-estradiol delivered in eye drops). Comprehensive pathway analyses indicate that these proteins are relevant overall to nervous system development and function, tissue development, organ development, as well as visual system development and function. We also present 18 protein networks with associated canonical pathways showing the effects of treatments for the detailed analyses of target engagements regarding potential application of estrogens as topically delivered broad-spectrum retina neuroprotectants. Profound impact on crystallins is discussed as one of the plausible neuroprotective mechanisms.
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Edwards DA, Turan B. Within-person coupling of estradiol, testosterone, and cortisol in women athletes. PeerJ 2020; 8:e8402. [PMID: 32002332 PMCID: PMC6984338 DOI: 10.7717/peerj.8402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/16/2019] [Indexed: 01/20/2023] Open
Abstract
Purpose In variety of settings cortisol and testosterone are positively “coupled.” That is, within-person fluctuations of cortisol and testosterone levels occur in parallel—increases and decreases in one hormone are associated with corresponding increases and decreases in the other. The present report explored hormone coupling in women athletes in two studies selected because they included measurements of salivary levels of cortisol, testosterone, and estradiol—a hormone that has been only infrequently studied in the context of competitive athletics. Methods Consenting members of Emory University’s varsity volleyball and soccer teams gave saliva samples on multiple occasions in the run-up to and over the course of two different intercollegiate contests. Results Volleyball and soccer players showed remarkably similar hormone-specific patterns of increase in relationship to the different stages of competition—before warm-up, after warm-up, and after competition. For both the volleyball and soccer team, Hierarchical Linear Model (HLM) analyses showed estradiol as being significantly coupled with testosterone which was also coupled with cortisol. Conclusions This is, apparently, the first report of significant within-person coupling between estradiol and testosterone in the context of competitive athletic stress. These two hormones may be coupled in a wide variety of circumstances not limited to ones involving sport competition, and results reported here should encourage exploration of the extent to which coordinated fluctuations in estradiol, testosterone, and cortisol levels are present in other, more neutral settings and the ways in which the coordination of these fluctuating hormone levels may benefit human performance.
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Affiliation(s)
- David A Edwards
- Department of Psychology, Emory University, Atlanta, GA, United States of America
| | - Bulent Turan
- Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, United States of America
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Dean B, Parkin GM, Gibbons AS. Associations between catechol-O-methyltransferase (COMT) genotypes at rs4818 and rs4680 and gene expression in human dorsolateral prefrontal cortex. Exp Brain Res 2020; 238:477-486. [DOI: 10.1007/s00221-020-05730-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/07/2020] [Indexed: 12/28/2022]
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Kim S, Barad Z, Cheong RY, Ábrahám IM. Sex differences in rapid nonclassical action of 17β-oestradiol on intracellular signalling and oestrogen receptor α expression in basal forebrain cholinergic neurones in mouse. J Neuroendocrinol 2020; 32:e12830. [PMID: 31943420 DOI: 10.1111/jne.12830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 01/09/2020] [Accepted: 01/09/2020] [Indexed: 12/16/2022]
Abstract
Rapid nonclassical effects of 17β-oestradiol (E2 ) on intracellular signalling have been identified in the basal forebrain, although the extent to which these actions may be different in males and females is unknown. Previous work has shown that E2 rapidly phosphorylates cAMP responsive element binding protein (CREB) via ΕRα in female cholinergic neurones. Using this indicator, the present study examined whether nonclassical actions of E2 occur in a sexually dimorphic manner within basal forebrain cholinergic neurones in mice. In addition, we investigated the expression and intracellular distribution of oestrogen receptor (ΕR)α in cholinergic neurones in female and male mice. Animals were gonadectomised and treated 2 weeks later with E2 . The number of CREB-expressing cholinergic neurones was not altered in any of the brain regions after E2 treatment in both males and females. However, E2 treatment rapidly (< 15 minutes) increased (P < 0.05) the number of cholinergic neurones expressing phosphorylated CREB (pCREB) in the substantia innominata and medial septum but not in the striatum in female mice. By contrast, E2 did not change pCREB expression in cholinergic neurones in male mice at any time point (15 minutes, 1 hour, 4 hours), irrespective of the neuroanatomical location. We also observed that, in females, more cholinergic neurones expressed nuclear ΕRα in all regions, whereas males showed more cholinergic neurones with cytoplasmic or both nuclear and cytoplasmic expression of ΕRα. Taken together, these results demonstrate a marked sex difference in the E2 -induced nonclassical effect and intracellular distribution of ΕRα in basal forebrain cholinergic neurones in vivo.
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Affiliation(s)
- SooHyun Kim
- Centre for Neuroendocrinology and Department of Physiology, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand
| | - Zsuzsanna Barad
- Centre for Neuroendocrinology and Department of Physiology, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand
| | - Rachel Y Cheong
- Centre for Neuroendocrinology and Department of Physiology, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand
| | - István M Ábrahám
- Centre for Neuroendocrinology and Department of Physiology, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
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Ren X, Boriero D, Chaiswing L, Bondada S, St Clair DK, Butterfield DA. Plausible biochemical mechanisms of chemotherapy-induced cognitive impairment ("chemobrain"), a condition that significantly impairs the quality of life of many cancer survivors. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1088-1097. [PMID: 30759363 PMCID: PMC6502692 DOI: 10.1016/j.bbadis.2019.02.007] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/05/2019] [Accepted: 02/07/2019] [Indexed: 12/13/2022]
Abstract
Increasing numbers of cancer patients survive and live longer than five years after therapy, but very often side effects of cancer treatment arise at same time. One of the side effects, chemotherapy-induced cognitive impairment (CICI), also called "chemobrain" or "chemofog" by patients, brings enormous challenges to cancer survivors following successful chemotherapeutic treatment. Decreased abilities of learning, memory, attention, executive function and processing speed in cancer survivors with CICI, are some of the challenges that greatly impair survivors' quality of life. The molecular mechanisms of CICI involve very complicated processes, which have been the subject of investigation over the past decades. Many mechanistic candidates have been studied including disruption of the blood-brain barrier (BBB), DNA damage, telomere shortening, oxidative stress and associated inflammatory response, gene polymorphism of neural repair, altered neurotransmission, and hormone changes. Oxidative stress is considered as a vital mechanism, since over 50% of FDA-approved anti-cancer drugs can generate reactive oxygen species (ROS) or reactive nitrogen species (RNS), which lead to neuronal death. In this review paper, we discuss these important candidate mechanisms, in particular oxidative stress and the cytokine, TNF-alpha and their potential roles in CICI.
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Affiliation(s)
- Xiaojia Ren
- Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Diana Boriero
- Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA; Department of Neurosciences, Biomedicine, and Movement Disorders, Section on Biological Chemistry, University of Verona, 37134 Verona, Italy
| | - Luksana Chaiswing
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA; Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40536, USA
| | - Subbarao Bondada
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA; Department of Microbiology, Immunology & Molecular Genetics, University of Kentucky, Lexington, KY 40536, USA
| | - Daret K St Clair
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA; Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40536, USA
| | - D Allan Butterfield
- Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA; Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA.
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Mohajeri M, Martín-Jiménez C, Barreto GE, Sahebkar A. Effects of estrogens and androgens on mitochondria under normal and pathological conditions. Prog Neurobiol 2019; 176:54-72. [DOI: 10.1016/j.pneurobio.2019.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 02/23/2019] [Accepted: 03/05/2019] [Indexed: 02/06/2023]
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Ishii T, Warabi E. Mechanism of Rapid Nuclear Factor-E2-Related Factor 2 (Nrf2) Activation via Membrane-Associated Estrogen Receptors: Roles of NADPH Oxidase 1, Neutral Sphingomyelinase 2 and Epidermal Growth Factor Receptor (EGFR). Antioxidants (Basel) 2019; 8:antiox8030069. [PMID: 30889865 PMCID: PMC6466580 DOI: 10.3390/antiox8030069] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/07/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022] Open
Abstract
Membrane-associated estrogen receptors (ER)-α36 and G protein-coupled estrogen receptor (GPER) play important roles in the estrogen’s rapid non-genomic actions including stimulation of cell proliferation. Estrogen via these receptors induces rapid activation of transcription factor nuclear factor-E2-related factor 2 (Nrf2), a master regulator of detoxification and antioxidant systems, playing a key role in the metabolic reprogramming to support cell proliferation. This review highlights the possible mechanism underlying rapid Nrf2 activation via membrane-associated estrogen receptors by estrogen and phytoestrogens. Stimulation of ER-α36-GPER signaling complex rapidly induces Src-mediated transactivation of epidermal growth factor receptor (EGFR) leading to a kinase-mediated signaling cascade. We propose a novel hypothesis that ER-α36-GPER signaling initially induces rapid and temporal activation of NADPH oxidase 1 to generate superoxide, which subsequently activates redox-sensitive neutral sphingomyelinase 2 generating the lipid signaling mediator ceramide. Generation of ceramide is required for Ras activation and ceramide-protein kinase C ζ-casein kinase 2 (CK2) signaling. Notably, CK2 enhances chaperone activity of the Cdc37-Hsp90 complex supporting activation of various signaling kinases including Src, Raf and Akt (protein kinase B). Activation of Nrf2 may be induced by cooperation of two signaling pathways, (i) Nrf2 stabilization by direct phosphorylation by CK2 and (ii) EGFR-Ras-PI 3 kinase (PI3K)-Akt axis which inhibits glycogen synthase kinase 3β leading to enhanced nuclear transport and stability of Nrf2.
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Affiliation(s)
- Tetsuro Ishii
- Faculty of Medicine, University of Tsukuba, Tsukuba Ibaraki 305-8575, Japan.
| | - Eiji Warabi
- Faculty of Medicine, University of Tsukuba, Tsukuba Ibaraki 305-8575, Japan.
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Tajalli-Nezhad S, Karimian M, Beyer C, Atlasi MA, Azami Tameh A. The regulatory role of Toll-like receptors after ischemic stroke: neurosteroids as TLR modulators with the focus on TLR2/4. Cell Mol Life Sci 2019; 76:523-537. [PMID: 30377701 PMCID: PMC11105485 DOI: 10.1007/s00018-018-2953-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 10/19/2018] [Indexed: 02/07/2023]
Abstract
Ischemic stroke is the most common cerebrovascular disease and considered as a worldwide leading cause of death. After cerebral ischemia, different pathophysiological processes including neuroinflammation, invasion and aggregation of inflammatory cells and up-regulation of cytokines occur simultaneously. In this respect, Toll-like receptors (TLRs) are the first identified important mediators for the activation of the innate immune system and are widely expressed in glial cells and neurons following brain trauma. TLRs are also able to interact with endogenous and exogenous molecules released during ischemia and can increase tissue damage. Particularly, TLR2 and TLR4 activate different downstream inflammatory signaling pathways. In addition, TLR signaling can alternatively play a role for endogenous neuroprotection. In this review, the gene and protein structures, common genetic polymorphisms of TLR2 and TLR4, TLR-related molecular pathways and their putative role after ischemic stroke are delineated. Furthermore, the relationship between neurosteroids and TLRs as neuroprotective mechanism is highlighted in the context of brain ischemia.
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Affiliation(s)
- Saeedeh Tajalli-Nezhad
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Karimian
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Cordian Beyer
- Institute of Neuroanatomy, Faculty of Medicine, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Mohammad Ali Atlasi
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Abolfazl Azami Tameh
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran.
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Valéra MC, Fontaine C, Noirrit-Esclassan E, Boudou F, Buscato M, Adlanmerini M, Trémollières F, Gourdy P, Lenfant F, Arnal JF. [Towards an optimization of the modulation of the estrogen receptor during menopausal hormonal therapy]. Med Sci (Paris) 2019; 34:1056-1062. [PMID: 30623764 DOI: 10.1051/medsci/2018297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Women now live more than a third of their lives after the onset of menopause. The decline in endogenous estrogen production during this period is accompanied by functional disorders that affect quality of life. These symptoms may be relieved by menopausal hormone therapy (MHT) initially based on the administration of equine conjugated estrogens (mainly in the United States, oral route) or the natural estrogen, 17β-estradiol (in Europe, transdermal route). Estrogen receptor α (ERα), but not ERβ, mediates most of the physiological effects of estrogens. ERα belongs to the superfamily of nuclear receptors and regulates the transcription of genes via its activation functions AF1 and AF2. In addition to these classical genomic actions, estrogens can activate a subpopulation of ERα present at the cell membrane and thereby induce rapid signals. In this review, we will summarize the evolution of MHTs in last decades, as well as treatments that use various selective estrogen receptor modulators (SERMs). Next, we will describe recent advances in the understanding of the mechanisms of estrogen action, in particular the respective roles of nuclear and membrane ERα as well as the potential implications for future therapies.
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Affiliation(s)
- Marie-Cécile Valéra
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Coralie Fontaine
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | | | - Frédéric Boudou
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Melissa Buscato
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Marine Adlanmerini
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Florence Trémollières
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Pierre Gourdy
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Françoise Lenfant
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Jean-François Arnal
- Inserm U1048 et université Toulouse III, I2MC, CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
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Chaychi S, Polosa A, Chemtob S, Lachapelle P. Evaluating the neuroprotective effect of 17β-estradiol in rodent models of oxidative retinopathies. Doc Ophthalmol 2018; 137:151-168. [PMID: 30368631 DOI: 10.1007/s10633-018-9658-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/15/2018] [Indexed: 12/14/2022]
Abstract
PURPOSE To determine the neuroprotective effect of estrogen on the structure and function of the retina exposed to an oxidative stress. METHODS Male Sprague-Dawley rat pups were exposed to either hyperoxia (O2E: from P8 to P14) or bright light (LE: from P14 to P28) with or without 17 β-estradiol (βE2) treatment. Retinal structure (histology) and function (ERG) were assessed at selected time points. RESULTS In the O2E model, βE2 injections caused a significant reduction of the ERG and a significantly thinner OPL compared to untreated oxygen-exposed group (O2-exposed) rats. In contrast, in the LE model βE2, treatment was beneficial to the retinal structure (thicker ONL) and function (better preserved ERG amplitudes) compared to untreated light-exposed group (light-exposed rats). CONCLUSION Our results show that in conditions where the primary target of the oxidative stress is the outer retina (i.e., the photoreceptors) estrogen can protect the retina, while in situations where the inner retina (or retinal vasculature) is the main site of oxidative damage, estrogen may potentiate the detrimental effect of oxidative stress on the retina.
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Affiliation(s)
- Samaneh Chaychi
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada
| | - Anna Polosa
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada
| | - Sylvain Chemtob
- Departments of Pediatrics, Ophthalmology, and Pharmacology, Centre Hospitalier Universitaire Ste-Justine Research Center, Montréal, QC, Canada
| | - Pierre Lachapelle
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada.
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34
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Aghamohammadi-Sereshki A, Hrybouski S, Travis S, Huang Y, Olsen F, Carter R, Camicioli R, Malykhin NV. Amygdala subnuclei and healthy cognitive aging. Hum Brain Mapp 2018; 40:34-52. [PMID: 30291764 DOI: 10.1002/hbm.24353] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/13/2018] [Accepted: 08/02/2018] [Indexed: 12/25/2022] Open
Abstract
Amygdala is a group of nuclei involved in the neural circuits of fear, reward learning, and stress. The main goal of this magnetic resonance imaging (MRI) study was to investigate the relationship between age and the amygdala subnuclei volumes in a large cohort of healthy individuals. Our second goal was to determine effects of the apolipoprotein E (APOE) and brain-derived neurotrophic factor (BDNF) polymorphisms on the amygdala structure. One hundred and twenty-six healthy participants (18-85 years old) were recruited for this study. MRI datasets were acquired on a 4.7 T system. Amygdala was manually segmented into five major subdivisions (lateral, basal, accessory basal nuclei, and cortical, and centromedial groups). The BDNF (methionine and homozygous valine) and APOE genotypes (ε2, homozygous ε3, and ε4) were obtained using single nucleotide polymorphisms. We found significant nonlinear negative associations between age and the total amygdala and its lateral, basal, and accessory basal nuclei volumes, while the cortical amygdala showed a trend. These age-related associations were found only in males but not in females. Centromedial amygdala did not show any relationship with age. We did not observe any statistically significant effects of APOE and BDNF polymorphisms on the amygdala subnuclei volumes. In contrast to APOE ε2 allele carriers, both older APOE ε4 and ε3 allele carriers had smaller lateral, basal, accessory basal nuclei volumes compared to their younger counterparts. This study indicates that amygdala subnuclei might be nonuniformly affected by aging and that age-related association might be gender specific.
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Affiliation(s)
| | - Stanislau Hrybouski
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Scott Travis
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Yushan Huang
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Fraser Olsen
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Rawle Carter
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Richard Camicioli
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.,Division of Neurology, University of Alberta, Edmonton, Alberta, Canada
| | - Nikolai V Malykhin
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
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35
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Hussain R, Zubair H, Pursell S, Shahab M. Neurodegenerative Diseases: Regenerative Mechanisms and Novel Therapeutic Approaches. Brain Sci 2018; 8:E177. [PMID: 30223579 PMCID: PMC6162719 DOI: 10.3390/brainsci8090177] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/03/2018] [Accepted: 09/12/2018] [Indexed: 12/12/2022] Open
Abstract
Regeneration refers to regrowth of tissue in the central nervous system. It includes generation of new neurons, glia, myelin, and synapses, as well as the regaining of essential functions: sensory, motor, emotional and cognitive abilities. Unfortunately, regeneration within the nervous system is very slow compared to other body systems. This relative slowness is attributed to increased vulnerability to irreversible cellular insults and the loss of function due to the very long lifespan of neurons, the stretch of cells and cytoplasm over several dozens of inches throughout the body, insufficiency of the tissue-level waste removal system, and minimal neural cell proliferation/self-renewal capacity. In this context, the current review summarized the most common features of major neurodegenerative disorders; their causes and consequences and proposed novel therapeutic approaches.
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Affiliation(s)
- Rashad Hussain
- Center for Translational Neuromedicine, University of Rochester, NY 14642, USA.
| | - Hira Zubair
- Department of Animal Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Sarah Pursell
- Center for Translational Neuromedicine, University of Rochester, NY 14642, USA.
| | - Muhammad Shahab
- Department of Animal Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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36
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Cloning, partial sequencing and expression analysis of the neural form of P450 aromatase (cyp19a1b) in the South America catfish Rhamdia quelen. Comp Biochem Physiol B Biochem Mol Biol 2018; 221-222:11-17. [DOI: 10.1016/j.cbpb.2018.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 03/24/2018] [Accepted: 04/02/2018] [Indexed: 02/06/2023]
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37
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Hayashi MK. Structure-Function Relationship of Transporters in the Glutamate-Glutamine Cycle of the Central Nervous System. Int J Mol Sci 2018; 19:ijms19041177. [PMID: 29649168 PMCID: PMC5979278 DOI: 10.3390/ijms19041177] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/09/2018] [Accepted: 04/10/2018] [Indexed: 12/12/2022] Open
Abstract
Many kinds of transporters contribute to glutamatergic excitatory synaptic transmission. Glutamate is loaded into synaptic vesicles by vesicular glutamate transporters to be released from presynaptic terminals. After synaptic vesicle release, glutamate is taken up by neurons or astrocytes to terminate the signal and to prepare for the next signal. Glutamate transporters on the plasma membrane are responsible for transporting glutamate from extracellular fluid to cytoplasm. Glutamate taken up by astrocyte is converted to glutamine by glutamine synthetase and transported back to neurons through glutamine transporters on the plasma membranes of the astrocytes and then on neurons. Glutamine is converted back to glutamate by glutaminase in the neuronal cytoplasm and then loaded into synaptic vesicles again. Here, the structures of glutamate transporters and glutamine transporters, their conformational changes, and how they use electrochemical gradients of various ions for substrate transport are summarized. Pharmacological regulations of these transporters are also discussed.
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Affiliation(s)
- Mariko Kato Hayashi
- School of Medicine, International University of Health and Welfare, 4-3 Kozunomori, Narita, Chiba 286-8686, Japan.
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38
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Lim SW, Nyam TT E, Hu CY, Chio CC, Wang CC, Kuo JR. Estrogen Receptor-α is Involved in Tamoxifen Neuroprotective Effects in a Traumatic Brain Injury Male Rat Model. World Neurosurg 2018; 112:e278-e287. [DOI: 10.1016/j.wneu.2018.01.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 01/06/2018] [Indexed: 01/23/2023]
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39
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El Hokayem J, Weeber E, Nawaz Z. Loss of Angelman Syndrome Protein E6AP Disrupts a Novel Antagonistic Estrogen-Retinoic Acid Transcriptional Crosstalk in Neurons. Mol Neurobiol 2018; 55:7187-7200. [PMID: 29388081 DOI: 10.1007/s12035-018-0871-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 01/07/2018] [Indexed: 02/06/2023]
Abstract
Angelman syndrome (AS) is a complex genetic disorder that affects the nervous system. AS affects an estimated 1 in 12,000 to 20,000 individuals. Characteristic features of AS includes developmental delay or intellectual disability, severe speech impairment, seizures, small head size (microcephaly), and problems with movement and balance (ataxia). AS individuals usually have microdeletion of the maternal copy of 15q11.2-15q13 region of chromosome 15. The E6-associated protein (E6AP, an E3 ubiquitin protein ligase enzyme) is encoded by the gene UBE3A, which is located in this region, and it has been shown that deregulation of E6AP gives rise to AS and neuropathology of autism spectrum disorders (ASDs) (e.g., autism and Rett syndromes). We have shown that E6AP also acts as a coactivator of the estrogen receptor (ER). ER is a ligand-induced transcription factor that exerts potent and wide-ranging effects on the developing brain. Furthermore, the expression pattern of ER in the brain overlaps with that of E6AP. Up till now, all the published studies have examined the role of the ubiquitin-protein ligase activity of E6AP in the development of AS, and it is not known what role the newly discovered coactivation functions of E6AP and ER plays in the pathology of AS. Here, we demonstrate that E6AP and ER co-immunoprecipitate and are in the same protein complex in neuronal cells (Neuro2a). In addition, both colocalize in nuclear and cytoplasmic compartments of the mouse hippocampal neurons and Neuro2a cells. Moreover, we identified a novel E6AP and ER direct transcriptional regulation of a gene Cyp26b1 known to be involved in learning and memory processes. This transcriptional regulation involves recruitment of E6AP and ER to a newly discovered functional estrogen response element (ERE) located at the Cyp26b1 gene promoter and is associated with transcription permissive epigenetic events leading to increase of active transcription of the gene in neurons upon estrogen treatment. This novel transcriptional regulation was also validated in the AS mouse model where E6AP expression is abrogated in the mouse brain. In fact, Cyp26b1 expression is decreased by 31% in AS mice versus age-matched control (Ctrl) mice hippocampi. Also, retinoic acid transcriptional signaling was shown to be amplified as evidenced by specific increased Rarβ and decreased Erbb4 mRNA expression in AS mice versus Ctrl mice hippocampi. These transcript level changes were also supported by the same trend of changes at the protein level. Collectively, our data present a proof of principle that the transcriptional coactivation function of E6AP may have a crucial role in the pathobiology of AS. This function, yet to be thoroughly investigated, reveals the possibility of harnessing the antagonistic estrogen-retinoic acid transcriptional signaling crosstalk and potentially other unknown effectors for the investigation of important possible targets as putative novel treatment modalities and venues for reversing neurological manifestations in AS and related syndromes like ASDs.
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Affiliation(s)
- Jimmy El Hokayem
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute at Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Gautier Building, Room 314 (R629), 1011 NW 15th Street, Miami, FL, 33136, USA.,Sylvester Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Edwin Weeber
- Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL, 33613, USA.,Neurobiology of Learning and Memory Laboratory, USF Health Byrd Alzheimer's Institute, University of South Florida, Tampa, FL, 33613, USA
| | - Zafar Nawaz
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute at Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Gautier Building, Room 314 (R629), 1011 NW 15th Street, Miami, FL, 33136, USA. .,Sylvester Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.
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40
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Ferguson SA, Mouzon BC, Lynch C, Lungmus C, Morin A, Crynen G, Carper B, Bieler G, Mufson EJ, Stewart W, Mullan M, Crawford F. Negative Impact of Female Sex on Outcomes from Repetitive Mild Traumatic Brain Injury in hTau Mice Is Age Dependent: A Chronic Effects of Neurotrauma Consortium Study. Front Aging Neurosci 2017; 9:416. [PMID: 29311903 PMCID: PMC5744460 DOI: 10.3389/fnagi.2017.00416] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/04/2017] [Indexed: 11/13/2022] Open
Abstract
Traumatic brain injury (TBI) is a serious public health concern which strikes someone every 15 s on average in the US. Even mild TBI, which comprise as many as 75% of all TBI cases, carries long term consequences. The effects of age and sex on long term outcome from TBI is not fully understood, but due to the increased risk for neurodegenerative diseases after TBI it is important to understand how these factors influence the outcome from TBI. This study examined the neurobehavioral and neuropathological effects of age and sex on the outcome 15 days following repetitive mild traumatic brain injury (r-mTBI) in mice transgenic for human tau (hTau). These mice express the six human isoforms of tau but do not express endogenous murine tau and they develop tau pathology and memory impairment in an age-dependent manner. After 5 mild impacts, aged female mice showed motor impairments that were absent in aged male mice, as well as younger animals. Conversely, aged female sham mice outperformed all other groups of aged mice in a Barnes maze spatial memory test. Pathologically, increases in IBA-1 and GFAP staining typically seen in this model of r-mTBI showed the expected increases with both injury and age, but phosphorylated tau stained with CP13 in the hippocampus (reduced in female sham mice compared to males) and PHF1 in the cortex (reduced in female TBI mice compared to male TBI mice) showed the only histological signs of sex-dependent differences in these mice.
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Affiliation(s)
- Scott A Ferguson
- Roskamp Institute, Sarasota, FL, United States.,James A. Haley Veterans' Hospital, Tampa, FL, United States
| | - Benoit C Mouzon
- Roskamp Institute, Sarasota, FL, United States.,James A. Haley Veterans' Hospital, Tampa, FL, United States
| | | | | | | | | | - Benjamin Carper
- RTI International, Research Triangle Park, NC, United States
| | - Gayle Bieler
- RTI International, Research Triangle Park, NC, United States
| | - Elliott J Mufson
- Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, United States
| | - William Stewart
- Queen Elizabeth Glasgow University Hospital, Glasgow, United Kingdom.,Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom
| | | | - Fiona Crawford
- Roskamp Institute, Sarasota, FL, United States.,James A. Haley Veterans' Hospital, Tampa, FL, United States
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41
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Merlo S, Spampinato SF, Sortino MA. Estrogen and Alzheimer's disease: Still an attractive topic despite disappointment from early clinical results. Eur J Pharmacol 2017; 817:51-58. [DOI: 10.1016/j.ejphar.2017.05.059] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 04/13/2017] [Accepted: 05/30/2017] [Indexed: 01/06/2023]
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42
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Bálint M, Jeszenői N, Horváth I, Ábrahám IM, Hetényi C. Dynamic changes in binding interaction networks of sex steroids establish their non-classical effects. Sci Rep 2017; 7:14847. [PMID: 29093525 PMCID: PMC5665952 DOI: 10.1038/s41598-017-14840-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/17/2017] [Indexed: 11/21/2022] Open
Abstract
Non-classical signaling in the intracellular second messenger system plays a pivotal role in the cytoprotective effect of estradiol. Estrogen receptor is a common target of sex steroids and important in mediating estradiol-induced neuroprotection. Whereas the mechanism of genomic effects of sex steroids is fairly understood, their non-classical effects have not been elucidated completely. We use real time molecular dynamics calculations to uncover the interaction network of estradiol and activator estren. Besides steroid interactions, we also investigate the co-activation of the receptor. We show how steroid binding to the alternative binding site of the non-classical action is facilitated by the presence of a steroid in the classical binding site and the absence of the co-activator peptide. Uncovering such dynamic mechanisms behind steroid action will help the structure-based design of new drugs with non-classical responses and cytoprotective potential.
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Affiliation(s)
- Mónika Bálint
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Szigeti út 12, 7624, Pécs, Hungary.,Department of Biochemistry, Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117, Budapest, Hungary
| | - Norbert Jeszenői
- MTA NAP-B Molecular Neuroendocrinology Group, Institute of Physiology, Szentágothai Research Center, Center for Neuroscience, University of Pécs, Szigeti út 12, 7624, Pécs, Hungary
| | - István Horváth
- Chemistry Doctoral School, University of Szeged, Dugonics tér 13, 6720, Szeged, Hungary
| | - István M Ábrahám
- MTA NAP-B Molecular Neuroendocrinology Group, Institute of Physiology, Szentágothai Research Center, Center for Neuroscience, University of Pécs, Szigeti út 12, 7624, Pécs, Hungary.
| | - Csaba Hetényi
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Szigeti út 12, 7624, Pécs, Hungary.
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43
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Read SL, Grundy EMD. Fertility History and Cognition in Later Life. J Gerontol B Psychol Sci Soc Sci 2017; 72:1021-1031. [PMID: 26926956 PMCID: PMC5927162 DOI: 10.1093/geronb/gbw013] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/03/2016] [Indexed: 11/16/2022] Open
Abstract
Objectives To investigate the association between fertility history and cognition in older men and women. Method We analyzed associations between number of children (parity) and timing of births with level and change in cognition among 11,233 men and women aged 50+ in England using latent growth curve models. Models were adjusted for age, socioeconomic position, health, depressive symptoms, control, social contacts, activities, and isolation. Results Low (0–1 child) and high parity (3+ children) compared to medium parity (2 children) were associated with poorer cognitive functioning, as was an early age at entry to parenthood (<20 women/23 men). Many of these associations disappeared when socioeconomic position and health were controlled. For women, however, adjusting for socioeconomic position and social contacts strengthened the association between childlessness and poor cognition. Late motherhood (>35) was associated with better cognitive function. Conclusion Associations between fertility history and cognition were to large extent accounted for socioeconomic position, partly because this influenced health and social engagement. Poorer cognition in childless people and better cognition among mothers experiencing child birth at higher ages suggest factors related to childbearing/rearing that are beneficial for later cognitive functioning, although further research into possible earlier selection factors is needed.
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Affiliation(s)
- Sanna L Read
- Department of Social Policy, London School of Economics and Political Science, UK
| | - Emily M D Grundy
- Department of Social Policy, London School of Economics and Political Science, UK
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44
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Discrepancies on the association between androgen deprivation therapy for prostate cancer and subsequent dementia: meta-analysis and meta-regression. Oncotarget 2017; 8:73087-73097. [PMID: 29069851 PMCID: PMC5641194 DOI: 10.18632/oncotarget.20391] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/04/2017] [Indexed: 11/25/2022] Open
Abstract
Limited literature exists on the association between androgen deprivation therapy (ADT) for prostate cancer (PCa) and subsequent dementia and the study conclusions are in conflicts with one another. We searched several cohort databases from 1960 to 2017 for observational or prospective studies that reported on an association between ADT for PCa and subsequent dementia. A meta-analysis was performed to cumulatively determine the association between ADT and dementia including Alzheimer's disease using an incidence rate ratio (IRR), crude hazard ratio (HR), and adjusted HR. Seven studies were eligible for the meta-analysis, with the inclusion of a total of 90, 543 prostate cancer patients. The pooled overall IRR, crude HR, and adjusted HR were 1.78 [95% confidence interval (CI): 1.51-2.10)], 1.80 (95% CI: 1.05-3.10), and 1.59 (95% CI: 1.16-2.18), respectively. A meta-regression analysis showed that the crude HR was affected by both follow -up duration and lag time in the univariate model (p = < 0.001). However, IRR and adjusted HR were not affected by these moderators. The overall outcomes of IRR, crude HR, and adjusted HR were found to be balanced in the sensitivity analysis. A positive association was demonstrated between ADT and the subsequent incidence of dementia in this meta-analysis. Methodological difference including follow-up duration and the time lag could be related with the discrepancies.
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Zou Y, Lu Q, Zheng D, Chu Z, Liu Z, Chen H, Ruan Q, Ge X, Zhang Z, Wang X, Lou W, Huang Y, Wang Y, Huang X, Liu Z, Xie W, Zhou Y, Yao P. Prenatal levonorgestrel exposure induces autism-like behavior in offspring through ERβ suppression in the amygdala. Mol Autism 2017; 8:46. [PMID: 28824796 PMCID: PMC5561609 DOI: 10.1186/s13229-017-0159-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 07/13/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is characterized by impairments in social communication and restricted or repetitive behaviors or interests. ASD is now diagnosed in more than one out of 100 children and is biased towards males by a ratio of at least 4:1. Many possible explanations and potential causative factors have been reported, such as genetics, sex, and environmental factors, although the detailed mechanisms of ASD remain unclear. METHODS The dams were exposed through oral contraceptives to either vehicle control (VEH) alone, levonorgestrel (LNG) alone, ethinyl estradiol (EE) alone, or a combination of LNG/EE for 21 days during their pregnancy. The subsequent 10-week-old offspring were used for autism-like behavior testing, and the limbic tissues were isolated for analysis. In another experimental group, 8-week-old male offspring were treated by infusion of ERβ overexpression/knockdown lentivirus in the amygdala, and the offspring were analyzed after 2 weeks. RESULTS We show that prenatal exposure of either LNG alone or a LNG/EE combination, but not EE alone, results in suppression of ERβ (estrogen receptor β) and its target genes in the amygdala with autism-like behavior in male offspring, while there is a much smaller effect on female offspring. However, we find that there is no effect on the hippocampus and hypothalamus. Further investigation shows that ERβ suppression is due to LNG-mediated altered methylation on the ERβ promoter and results in tissue damage with oxidative stress and the dysfunction of mitochondria and fatty acid metabolism, which subsequently triggers autism-like behavior. Overexpression of ERβ in the amygdala completely restores LNG-induced ERβ suppression and autism-like behaviors in offspring, while ERβ knockdown mimics this effect, indicating that ERβ expression in the amygdala plays an important role in autism-like behavior development. CONCLUSIONS We conclude that prenatal levonorgestrel exposure induces autism-like behavior in offspring through ERβ suppression in the amygdala. To our knowledge, this is the first time the potential effect of oral contraceptives on the contribution of autism-like behavior in offspring has been discovered.
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Affiliation(s)
- Yuanlin Zou
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Qiaomei Lu
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Dan Zheng
- Institute of Environmental Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China
| | - Zhigang Chu
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
| | - Zhaoyu Liu
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Haijia Chen
- SALIAI Stem Cell Institute of Guangdong, Guangzhou SALIAI Stem Cell Science and Technology Co. LTD, Guangzhou, 510055 People's Republic of China
| | - Qiongfang Ruan
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
| | - Xiaohu Ge
- SALIAI Stem Cell Institute of Guangdong, Guangzhou SALIAI Stem Cell Science and Technology Co. LTD, Guangzhou, 510055 People's Republic of China
| | - Ziyun Zhang
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Xiaoyan Wang
- SALIAI Stem Cell Institute of Guangdong, Guangzhou SALIAI Stem Cell Science and Technology Co. LTD, Guangzhou, 510055 People's Republic of China
| | - Wenting Lou
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
| | - Yongjian Huang
- Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Yifei Wang
- SALIAI Stem Cell Institute of Guangdong, Guangzhou SALIAI Stem Cell Science and Technology Co. LTD, Guangzhou, 510055 People's Republic of China
| | - Xiaodong Huang
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
| | - Zhengxiang Liu
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China
| | - Weiguo Xie
- Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
| | - Yikai Zhou
- Institute of Environmental Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China
| | - Paul Yao
- Internal Medicine of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 People's Republic of China.,Tongji Wenchang Hospital, Huazhong University of Science and Technology, Wenchang, 571321 People's Republic of China.,Institute of Burns, Tongren Hospital of Wuhan University, Wuhan, 430060 People's Republic of China
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Luo J, Hu Z, Xiao Y, Yang T, Dong C, Huang J, Zhou HB. Rational design and optimization of selenophenes with basic side chains as novel potent selective estrogen receptor modulators (SERMs) for breast cancer therapy. MEDCHEMCOMM 2017; 8:1485-1497. [PMID: 30108860 PMCID: PMC6072463 DOI: 10.1039/c7md00163k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 05/23/2017] [Indexed: 12/12/2022]
Abstract
To increase the diversity of estrogen receptor (ER) ligands having novel structures and activities, series of selenophene derivatives with a basic side chain (BSC) were synthesized and their biological activity as subtype-selective antagonists for the ER was explored. Compared with the selenophenes without a BSC, most compounds showed an increase in binding affinity, and several compounds displayed enhanced antagonist potency and antiproliferative activity. Especially, compound 16c exhibited excellent transcriptional activity for ERα (IC50 = 13 nM) which made this compound the most potent antagonist for ERα of the whole series and is 66-fold better than the best selenophene compound without a BSC. Moreover, several compounds showed values of IC50 better than that of 4-hydroxytamoxifen in breast cancer MCF-7 cells. The modeling study indicated that the basic side chain might contribute to their increased antagonist potency and antiproliferative activity. These new ligands have the potential to be further developed as novel agents to improve therapeutics that target the estrogen receptor.
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Affiliation(s)
- Junjie Luo
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
| | - Zhiye Hu
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
| | - Yuan Xiao
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
| | - Tongxin Yang
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
| | - Chune Dong
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
- Key Laboratory of Organofluorine Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , China
| | - Jian Huang
- College of Life Sciences , Wuhan University , Wuhan 430072 , China
| | - Hai-Bing Zhou
- Hubei Provincial Key Laboratory of Developmentally Originated Disease , Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals , State Key Laboratory of Virology , Wuhan University School of Pharmaceutical Sciences , Wuhan 430071 , China .
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47
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Expression of aromatase and estrogen receptors in lumbar motoneurons of mice. Neurosci Lett 2017; 653:7-11. [PMID: 28501695 DOI: 10.1016/j.neulet.2017.05.017] [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: 06/23/2016] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 12/12/2022]
Abstract
Estrogen exerts protective roles in amyotrophic lateral sclerosis (ALS). However, the expression of aromatase (ARO) and estrogen receptors (ERs) in the motoneurons of spinal cord, has not yet been elucidated. By immunohistochemistry, we found that ARO and ERs were present in the ventral horn of adult mice lumbar spinal cord, and colocalized with SMI-32, a motoneuron specific marker. Within motoneurons, we observed that ARO is detected primarily in the cytoplasm, with fewer ARO in the nucleus; ERα and ERβ mainly localized in the nucleus with less in the cytoplasm; while GPR30 is located in soma and processes. In conclusion, we found that ERs and ARO are expressed in the motoneurons of lumbar spinal cord in adult mice. These findings suggest that estrogen may be useful as a promising therapeutic agent for prevention of damage and improvement of locomotor function in ALS.
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Imtiaz B, Tuppurainen M, Rikkonen T, Kivipelto M, Soininen H, Kröger H, Tolppanen AM. Postmenopausal hormone therapy and Alzheimer disease: A prospective cohort study. Neurology 2017; 88:1062-1068. [PMID: 28202700 PMCID: PMC5384835 DOI: 10.1212/wnl.0000000000003696] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 12/21/2016] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE To explore the association between postmenopausal hormone therapy (HT) and Alzheimer disease (AD). METHODS Twenty-year follow-up data from the Kuopio Osteoporosis Risk Factor and Prevention study cohort were used. Self-administered questionnaires were sent to all women aged 47-56 years, residing in Kuopio Province starting in 1989 until 2009, every 5th year. Register-based information on HT prescriptions was available since 1995. Probable AD cases, based on DSM-IV and National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association criteria, were identified from the special reimbursement register (1999-2009). The study population included 8,195 women (227 cases of incident AD). RESULTS Postmenopausal estrogen use was not associated with AD risk in register-based or self-reported data (hazard ratio/95% confidence interval 0.92/0.68-1.2, 0.99/0.75-1.3, respectively). Long-term self-reported postmenopausal HT was associated with reduced AD risk (0.53/0.31-0.91). Similar results were obtained with any dementia diagnosis in the hospital discharge register as an outcome. CONCLUSIONS Our results do not provide strong evidence for a protective association between postmenopausal HT use and AD or dementia, although we observed a reduced AD risk among those with long-term self-reported HT use.
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Affiliation(s)
- Bushra Imtiaz
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
| | - Marjo Tuppurainen
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Toni Rikkonen
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Miia Kivipelto
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Hilkka Soininen
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Heikki Kröger
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Anna-Maija Tolppanen
- From the Institute of Clinical Medicine-Neurology (B.I., M.K., H.S.), Kuopio Musculoskeletal Research Unit, Clinical Research Center (M.T., T.R., H.K.), and Research Center for Comparative Effectiveness and Patient Safety (RECEPS) and School of Pharmacy (A.M.T.), University of Eastern Finland, Kuopio; Department of Obstetrics and Gynecology (M.T.), Neurocenter, Neurology (H.S.), and Department of Orthopedics and Traumatology (H.K.), Kuopio University Hospital, Finland; Department of Medicine (T.R.), University of Cambridge, UK; and Division of Clinical Geriatrics (M.K.), Center for Alzheimer Research, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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Spaander FH, Zinkstok SM, Baharoglu IM, Gensicke H, Polymeris A, Traenka C, Hametner C, Ringleb P, Curtze S, Martinez-Majander N, Aarnio K, Nolte CH, Scheitz JF, Leys D, Hochart A, Padjen V, Kägi G, Pezzini A, Michel P, Bill O, Zini A, Engelter ST, Nederkoorn PJ. Sex Differences and Functional Outcome After Intravenous Thrombolysis. Stroke 2017; 48:699-703. [DOI: 10.1161/strokeaha.116.014739] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 12/05/2016] [Accepted: 12/07/2016] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Women have a worse outcome after stroke compared with men, although in intravenous thrombolysis (IVT)–treated patients, women seem to benefit more. Besides sex differences, age has also a possible effect on functional outcome. The interaction of sex on the functional outcome in IVT-treated patients in relation to age remains complex. The purpose of this study was to compare outcome after IVT between women and men with regard to age in a large multicenter European cohort reflecting daily clinical practice of acute stroke care.
Methods—
Data were obtained from IVT registries of 12 European tertiary hospitals. The primary outcome was poor functional outcome, defined as a modified Rankin scale score of 3 to 6 at 3 months. We stratified outcome by age in decades. Safety measures were symptomatic intracranial hemorrhage and mortality at 3 months.
Results—
In this cohort, 9495 patients were treated with IVT, and 4170 (43.9%) were women with a mean age of 71.9 years. After adjustments for baseline differences, female sex remained associated with poor functional outcome (odds ratio, 1.15; 95% confidence interval, 1.02–1.31). There was no association between sex and functional outcome when data were stratified by age. Symptomatic intracranial hemorrhage rate was similar in both sexes (adjusted odds ratio, 0.93; 95% confidence interval, 0.73–1.19), whereas mortality was lower among women (adjusted odds ratio, 0.83; 95% confidence interval, 0.70–0.99).
Conclusions—
In this large cohort of IVT-treated patients, women more often had poor functional outcome compared with men. This difference was not dependent on age.
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Affiliation(s)
- Fianne H. Spaander
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Sanne M. Zinkstok
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Irem M. Baharoglu
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Henrik Gensicke
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Alexandros Polymeris
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Christopher Traenka
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Christian Hametner
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Peter Ringleb
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Sami Curtze
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Nicolas Martinez-Majander
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Karoliina Aarnio
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Christian H. Nolte
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Jan F. Scheitz
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Didier Leys
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Anais Hochart
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Visnja Padjen
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Georg Kägi
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Alessandro Pezzini
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Patrik Michel
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Olivier Bill
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Andrea Zini
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Stefan T. Engelter
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
| | - Paul J. Nederkoorn
- From the Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands (F.H.S., S.M.Z., I.M.B., P.J.N.); Stroke Center and Department of Neurology, University Hospital Basel, Switzerland (H.G., A.P., C.T., S.T.E.); Department of Neurology, University Hospital Heidelberg, Germany (C.H., P.R.); Department of Neurology, Helsinki University Central Hospital, Finland (S.C., N.M.-M., K.A.); Department of Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Germany
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Brotfain E, Gruenbaum SE, Boyko M, Kutz R, Zlotnik A, Klein M. Neuroprotection by Estrogen and Progesterone in Traumatic Brain Injury and Spinal Cord Injury. Curr Neuropharmacol 2017; 14:641-53. [PMID: 26955967 PMCID: PMC4981744 DOI: 10.2174/1570159x14666160309123554] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 12/31/2015] [Accepted: 02/25/2016] [Indexed: 12/25/2022] Open
Abstract
In recent years there has been a growing body of clinical and laboratory evidence demonstrating the neuroprotective effects of estrogen and progesterone after traumatic brain injury (TBI) and spinal cord injury (SCI). In humans, women have been shown to have a lower incidence of morbidity and mortality after TBI compared with age-matched men. Similarly, numerous laboratory studies have demonstrated that estrogen and progesterone administration is associated with a mortality reduction, improvement in neurological outcomes, and a reduction in neuronal apoptosis after TBI and SCI. Here, we review the evidence that supports hormone-related neuroprotection and discuss possible underlying mechanisms. Estrogen and progesterone-mediated neuroprotection are thought to be related to their effects on hormone receptors, signaling systems, direct antioxidant effects, effects on astrocytes and microglia, modulation of the inflammatory response, effects on cerebral blood flow and metabolism, and effects on mediating glutamate excitotoxicity. Future laboratory research is needed to better determine the mechanisms underlying the hormones' neuroprotective effects, which will allow for more clinical studies. Furthermore, large randomized clinical control trials are needed to better assess their role in human neurodegenerative conditions.
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Affiliation(s)
- Evgeni Brotfain
- Department of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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