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Jovanovic N, Zach V, Crocini C, Bahr LS, Forslund-Startceva SK, Franz K. A gender perspective on diet, microbiome, and sex hormone interplay in cardiovascular disease. Acta Physiol (Oxf) 2024:e14228. [PMID: 39263901 DOI: 10.1111/apha.14228] [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: 03/29/2024] [Revised: 07/26/2024] [Accepted: 08/24/2024] [Indexed: 09/13/2024]
Abstract
A unique interplay between body and environment embeds and reflects host-microbiome interactions that contribute to sex-differential disease susceptibility, symptomatology, and treatment outcomes. These differences derive from individual biological factors, such as sex hormone action, sex-divergent immune processes, X-linked gene dosage effects, and epigenetics, as well as from their interaction across the lifespan. The gut microbiome is increasingly recognized as a moderator of several body systems that are thus impacted by its function and composition. In humans, biological sex components further interact with gender-specific exposures such as dietary preferences, stressors, and life experiences to form a complex whole, requiring innovative methodologies to disentangle. Here, we summarize current knowledge of the interactions among sex hormones, gut microbiota, immune system, and vascular health and their relevance for sex-differential epidemiology of cardiovascular diseases. We outline clinical implications, identify knowledge gaps, and place emphasis on required future studies to address these gaps. In addition, we provide an overview of the caveats associated with conducting cardiovascular research that require consideration of sex/gender differences. While previous work has inspected several of these components separately, here we call attention to further translational utility of a combined perspective from cardiovascular translational research, gender medicine, and microbiome systems biology.
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Affiliation(s)
- Nina Jovanovic
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
| | - Veronika Zach
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
- Department of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité - Medical Heart Center of Charité and German Heart Institute Berlin, Berlin, Germany
| | - Claudia Crocini
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research (MRC), Deutsches Herzzentrum der Charité (DHZC), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Lina Samira Bahr
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research (MRC), Deutsches Herzzentrum der Charité (DHZC), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sofia Kirke Forslund-Startceva
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
| | - Kristina Franz
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Berlin, Germany
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Salinero AE, Abi-Ghanem C, Venkataganesh H, Sura A, Smith RM, Thrasher CA, Kelly RD, Hatcher KM, NyBlom V, Shamlian V, Kyaw NR, Belanger KM, Gannon OJ, Stephens SBZ, Zuloaga DG, Zuloaga KL. Treatment with brain specific estrogen prodrug ameliorates cognitive effects of surgical menopause in mice. Horm Behav 2024; 164:105594. [PMID: 38917776 PMCID: PMC11330726 DOI: 10.1016/j.yhbeh.2024.105594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 06/04/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024]
Abstract
Menopause is an endocrine shift leading to increased vulnerability for cognitive impairment and dementia risk factors, in part due to loss of neuroprotective circulating estrogens. Systemic replacement of estrogen post-menopause has limitations, including risk for estrogen-sensitive cancers. A promising therapeutic approach therefore might be to deliver estrogen only to the brain. We examined whether we could enhance cognitive performance by delivering estrogen exclusively to the brain in ovariectomized mice (a surgical menopause model). We treated mice with the prodrug 10β,17β-dihydroxyestra-1,4-dien-3-one (DHED), which can be administered systemically but is converted to 17β-estradiol only in the brain. Young and middle-aged C57BL/6 J mice received ovariectomy and subcutaneous implant containing vehicle or DHED and underwent cognitive testing to assess memory after 1-3.5 months of treatment. Low and medium doses of DHED did not alter metabolic status in middle-aged mice. In both age groups, DHED treatment improved spatial memory in ovariectomized mice. Additional testing in middle-aged mice showed that DHED treatment improved working and recognition memory in ovariectomized mice. These results lay the foundation for future studies determining if this intervention is as efficacious in models of dementia with comorbid risk factors.
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Affiliation(s)
- Abigail E Salinero
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Charly Abi-Ghanem
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Harini Venkataganesh
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Avi Sura
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Rachel M Smith
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Christina A Thrasher
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Richard D Kelly
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Katherine M Hatcher
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Vanessa NyBlom
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA; Department of Psychology and Center for Neuroscience Research, State University of New York at Albany, 1400 Washington Ave, Biology 325, Albany, NY 12222, USA
| | - Victoria Shamlian
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Nyi-Rein Kyaw
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Kasey M Belanger
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Olivia J Gannon
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Shannon B Z Stephens
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA
| | - Damian G Zuloaga
- Department of Psychology and Center for Neuroscience Research, State University of New York at Albany, 1400 Washington Ave, Biology 325, Albany, NY 12222, USA
| | - Kristen L Zuloaga
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY 12208, USA.
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Saeki K, Ha D, Chang G, Mori H, Yoshitake R, Wu X, Wang J, Wang YZ, Wang X, Tzeng T, Shim HJ, Neuhausen SL, Chen S. Perimenopausal and Menopausal Mammary Glands In A 4-Vinylcyclohexene Diepoxide Mouse Model. J Mammary Gland Biol Neoplasia 2024; 29:15. [PMID: 39017946 PMCID: PMC11254995 DOI: 10.1007/s10911-024-09569-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024] Open
Abstract
As both perimenopausal and menopausal periods are recognized critical windows of susceptibility for breast carcinogenesis, development of a physiologically relevant model has been warranted. The traditional ovariectomy model causes instant removal of the entire hormonal repertoire produced by the ovary, which does not accurately approximate human natural menopause with gradual transition. Here, we characterized the mammary glands of 4-vinylcyclohexene diepoxide (VCD)-treated animals at different time points, revealing that the model can provide the mammary glands with both perimenopausal and menopausal states. The perimenopausal gland showed moderate regression in ductal structure with no responsiveness to external hormones, while the menopausal gland showed severe regression with hypersensitivity to hormones. Leveraging the findings on the VCD model, effects of a major endocrine disruptor (polybrominated diphenyl ethers, PBDEs) on the mammary gland were examined during and after menopausal transition, with the two exposure modes; low-dose, chronic (environmental) and high-dose, subacute (experimental). All conditions of PBDE exposure did not augment or compromise the macroscopic ductal reorganization resulting from menopausal transition and/or hormonal treatments. Single-cell RNA sequencing revealed that the experimental PBDE exposure during the post-menopausal period caused specific transcriptomic changes in the non-epithelial compartment such as Errfi1 upregulation in fibroblasts. The environmental PBDE exposure resulted in similar transcriptomic changes to a lesser extent. In summary, the VCD mouse model provides both perimenopausal and menopausal windows of susceptibility for the breast cancer research community. PBDEs, including all tested models, may affect the post-menopausal gland including impacts on the non-epithelial compartments.
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Affiliation(s)
- Kohei Saeki
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Desiree Ha
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Gregory Chang
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Hitomi Mori
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Ryohei Yoshitake
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Xiwei Wu
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Jinhui Wang
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Yuan-Zhong Wang
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Xiaoqiang Wang
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Tony Tzeng
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Hyun Jeong Shim
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Susan L Neuhausen
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Shiuan Chen
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA.
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Herrera-Pérez JJ, Hernández-Hernández OT, Flores-Ramos M, Cueto-Escobedo J, Rodríguez-Landa JF, Martínez-Mota L. The intersection between menopause and depression: overview of research using animal models. Front Psychiatry 2024; 15:1408878. [PMID: 39081530 PMCID: PMC11287658 DOI: 10.3389/fpsyt.2024.1408878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 06/28/2024] [Indexed: 08/02/2024] Open
Abstract
Menopausal women may experience symptoms of depression, sometimes even progressing clinical depression requiring treatment to improve quality of life. While varying levels of estrogen in perimenopause may contribute to an increased biological vulnerability to mood disturbances, the effectiveness of estrogen replacement therapy (ERT) in the relief of depressive symptoms remains controversial. Menopausal depression has a complex, multifactorial etiology, that has limited the identification of optimal treatment strategies for the management of this psychiatric complaint. Nevertheless, clinical evidence increasingly supports the notion that estrogen exerts neuroprotective effects on brain structures related to mood regulation. Indeed, research using preclinical animal models continues to improve our understanding of menopause and the effectiveness of ERT and other substances at treating depression-like behaviors. However, questions regarding the efficacy of ERT in perimenopause have been raised. These questions may be answered by further investigation using specific animal models of reduced ovarian function. This review compares and discusses the advantages and pitfalls of different models emulating the menopausal stages and their relationship with the onset of depressive-like signs, as well as the efficacy and mechanisms of conventional and novel ERTs in treating depressive-like behavior. Ovariectomized young rats, middle-to-old aged intact rats, and females treated with reprotoxics have all been used as models of menopause, with stages ranging from surgical menopause to perimenopause. Additionally, this manuscript discusses the impact of organistic and therapeutic variables that may improve or reduce the antidepressant response of females to ERT. Findings from these models have revealed the complexity of the dynamic changes occurring in brain function during menopausal transition, reinforcing the idea that the best approach is timely intervention considering the opportunity window, in addition to the careful selection of treatment according to the presence or absence of reproductive tissue. Additionally, data from animal models has yielded evidence to support new promising estrogens that could be considered as ERTs with antidepressant properties and actions in endocrine situations in which traditional ERTs are not effective.
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Affiliation(s)
- José Jaime Herrera-Pérez
- Laboratorio de Farmacología Conductual, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Olivia Tania Hernández-Hernández
- Consejo Nacional de Humanidades, Ciencias y Tecnologías Research Fellow. Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Mónica Flores-Ramos
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Jonathan Cueto-Escobedo
- Departamento de Investigación Clínica, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa-Enríquez, Mexico
| | | | - Lucía Martínez-Mota
- Laboratorio de Farmacología Conductual, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
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Hess RA, Park CJ, Soto S, Reinacher L, Oh JE, Bunnell M, Ko CJ. Male animal sterilization: history, current practices, and potential methods for replacing castration. Front Vet Sci 2024; 11:1409386. [PMID: 39027909 PMCID: PMC11255590 DOI: 10.3389/fvets.2024.1409386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/10/2024] [Indexed: 07/20/2024] Open
Abstract
Sterilization and castration have been synonyms for thousands of years. Making an animal sterile meant to render them incapable of producing offspring. Castration or the physical removal of the testes was discovered to be the most simple but reliable method for managing reproduction and sexual behavior in the male. Today, there continues to be global utilization of castration in domestic animals. More than six hundred million pigs are castrated every year, and surgical removal of testes in dogs and cats is a routine practice in veterinary medicine. However, modern biological research has extended the meaning of sterilization to include methods that spare testis removal and involve a variety of options, from chemical castration and immunocastration to various methods of vasectomy. This review begins with the history of sterilization, showing a direct link between its practice in man and animals. Then, it traces the evolution of concepts for inducing sterility, where research has overlapped with basic studies of reproductive hormones and the discovery of testicular toxicants, some of which serve as sterilizing agents in rodent pests. Finally, the most recent efforts to use the immune system and gene editing to block hormonal stimulation of testis function are discussed. As we respond to the crisis of animal overpopulation and strive for better animal welfare, these novel methods provide optimism for replacing surgical castration in some species.
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Affiliation(s)
- Rex A. Hess
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Epivara, Inc, Champaign, IL, United States
| | - Chan Jin Park
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Epivara, Inc, Champaign, IL, United States
| | | | | | - Ji-Eun Oh
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Mary Bunnell
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - CheMyong J. Ko
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Epivara, Inc, Champaign, IL, United States
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Jacoblinnert K, Reilly M, Da Costa R, Schenke D, Jacob J. Effects of an Anti-Fertility Product on Reproductive Structures of Common Vole Males and Residues of Compounds. BIOLOGY 2024; 13:450. [PMID: 38927330 PMCID: PMC11200569 DOI: 10.3390/biology13060450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/31/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024]
Abstract
Some rodent species cause significant damage to agriculture and forestry, and some can transmit pathogens to humans and livestock. The common vole (Microtus arvalis) is widespread in Europe, and its population outbreaks have resulted in massive crop loss. Bait-based fertility control could contribute to rodent pest management. Bait containing 4-vinylcyclohexene diepoxide (VCD) and triptolide (TP), registered as ContraPest®, was delivered to male common voles for 14 or 28 consecutive days. The effects on reproductive structures and residues in the liver and testes were assessed. There was no effect on testis weight, sperm viability, sperm motility and oxidative stress in sperm cells. Results regarding the mitochondrial membrane potential of sperm, DNA fragmentation and progressively motile sperm cells were inconclusive. However, there was an increase in morphological sperm defects in voles treated for 14/28 days and fewer normal sperm cells in voles treated for 28 days. There were no TP residues in the testes, few and low TP residues and no VCD residues in liver tissues, making considerable secondary exposure to non-target species unlikely. Treatments with VCD + TP seemed to have minor effects on the reproductive organs of males. Further studies should evaluate the effect of VCD + TP on females and on the reproductive success of common voles and other pest rodent species.
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Affiliation(s)
- Kyra Jacoblinnert
- Julius Kuehn-Institute, Federal Research Institute for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics—Rodent Research, 48161 Muenster, Germany (J.J.)
- Department of Behavioral Biology, University of Osnabrueck, 49076 Osnabrueck, Germany
| | - Marion Reilly
- Julius Kuehn-Institute, Federal Research Institute for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics—Rodent Research, 48161 Muenster, Germany (J.J.)
| | - Raul Da Costa
- Centre for Reproductive Medicine and Andrology, University of Muenster, 48149 Muenster, Germany;
| | - Detlef Schenke
- Julius Kuehn-Institute, Federal Research Centre for Cultivated Plants, Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, 14195 Berlin, Germany;
| | - Jens Jacob
- Julius Kuehn-Institute, Federal Research Institute for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics—Rodent Research, 48161 Muenster, Germany (J.J.)
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Kim MR, Kim DI, Park SY, Kang HJ, Park SD, Lee JH. The Protective Role of Magnoliae Flos in Preventing Ovotoxicity and Managing Ovarian Function: An In Vitro and In Vivo Study. Int J Mol Sci 2024; 25:6456. [PMID: 38928161 PMCID: PMC11203778 DOI: 10.3390/ijms25126456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/31/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Magnoliae Flos (MF) is a medicinal herb widely employed in traditional medicine for relieving sinusitis, allergic rhinitis, headaches, and toothaches. Here, we investigated the potential preventive effects of MF extract (MFE) against 4-vinylcyclohexene diepoxide (VCD)-induced ovotoxicity in ovarian cells and a mouse model of premature ovarian insufficiency (POI). The cytoprotective effects of MFE were assessed using CHO-K1 or COV434 cells. In vivo, B6C3F1 female mice were intraperitoneally injected with VCD for two weeks to induce POI, while MFE was orally administered for four weeks, beginning one week before VCD administration. VCD led to a significant decline in the viabilities of CHO-K1 and COV434 cells and triggered excessive reactive oxygen species (ROS) production and apoptosis specifically in CHO-K1 cells. However, pretreatment with MFE effectively prevented VCD-induced cell death and ROS generation, while also activating the Akt signaling pathway. In vivo, MFE increased relative ovary weights, follicle numbers, and serum estradiol and anti-Müllerian hormone levels versus controls under conditions of ovary failure. Collectively, our results demonstrate that MFE has a preventive effect on VCD-induced ovotoxicity through Akt activation. These results suggest that MFE may have the potential to prevent and manage conditions such as POI and diminished ovarian reserve.
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Affiliation(s)
- Mi Ra Kim
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea; (M.R.K.); (D.-I.K.); (S.Y.P.)
| | - Dong-Il Kim
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea; (M.R.K.); (D.-I.K.); (S.Y.P.)
| | - Sung Yun Park
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea; (M.R.K.); (D.-I.K.); (S.Y.P.)
| | - Hyo Jin Kang
- Department of Biomedical Laboratory Science, Honam University, Gwangju 62399, Republic of Korea;
| | - Sun-Dong Park
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea; (M.R.K.); (D.-I.K.); (S.Y.P.)
| | - Ju-Hee Lee
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea; (M.R.K.); (D.-I.K.); (S.Y.P.)
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8
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Li Y, He R, Qin X, Zhu Q, Ma L, Liang X. Transcriptome analysis during 4-vinylcyclohexene diepoxide exposure-induced premature ovarian insufficiency in mice. PeerJ 2024; 12:e17251. [PMID: 38646488 PMCID: PMC11032656 DOI: 10.7717/peerj.17251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/26/2024] [Indexed: 04/23/2024] Open
Abstract
The occupational chemical 4-Vinylcyclohexene diepoxide (VCD) is a reproductively toxic environmental pollutant that causes follicular failure, leading to premature ovarian insufficiency (POI), which significantly impacts a woman's physical health and fertility. Investigating VCD's pathogenic mechanisms can offer insights for the prevention of ovarian impairment and the treatment of POI. This study established a mouse model of POI through intraperitoneal injection of VCD into female C57BL/6 mice for 15 days. The results were then compared with those of the control group, including a comparison of phenotypic characteristics and transcriptome differences, at two time points: day 15 and day 30. Through a comprehensive analysis of differentially expressed genes (DEGs), key genes were identified and validated some using RT-PCR. The results revealed significant impacts on sex hormone levels, follicle number, and the estrous cycle in VCD-induced POI mice on both day 15 and day 30. The DEGs and enrichment results obtained on day 15 were not as significant as those obtained on day 30. The results of this study provide a preliminary indication that steroid hormone synthesis, DNA damage repair, and impaired oocyte mitosis are pivotal in VCD-mediated ovarian dysfunction. This dysfunction may have been caused by VCD damage to the primordial follicular pool, impairing follicular development and aggravating ovarian damage over time, making it gradually difficult for the ovaries to perform their normal functions.
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Affiliation(s)
- Yi Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ruifen He
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xue Qin
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Qinying Zhu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Liangjian Ma
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaolei Liang
- Gansu Provincial Clinical Research Center for Gynecological Oncology, the First Hospital of Lanzhou University, Lanzhou, Gansu, China
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Zanini BM, de Avila BM, Garcia DN, Hense JD, Veiga GB, Barreto MM, Ashiqueali S, Mason JB, Yadav H, Masternak M, Schneider A. Dynamics of serum exosome microRNA profile altered by chemically induced estropause and rescued by estrogen therapy in female mice. GeroScience 2024:10.1007/s11357-024-01129-9. [PMID: 38499957 DOI: 10.1007/s11357-024-01129-9] [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: 01/10/2024] [Accepted: 03/09/2024] [Indexed: 03/20/2024] Open
Abstract
The decline in the ovarian reserve leads to menopause and reduced serum estrogens. MicroRNAs are small non-coding RNAs, which can regulate gene expression and be secreted by cells and trafficked in serum via exosomes. Serum miRNAs regulate tissue function and disease development. Therefore, the aim of this study was to identify miRNA profiles in serum exosomes of mice induced to estropause and treated with 17β-estradiol (E2). Female mice were divided into three groups including control (CTL), injected with 4-Vinylcyclohexene diepoxide (VCD), and injected with VCD plus E2 (VCD + E2). Estropause was confirmed by acyclicity and a significant reduction in the number of ovarian follicles (p < 0.05). Body mass gain during estropause was higher in VCD and VCD + E2 compared to CTL females (p = 0.02). Sequencing of miRNAs was performed from exosomes extracted from serum, and 402 miRNAs were detected. Eight miRNAs were differentially regulated between CTL and VCD groups, seven miRNAs regulated between CTL and VCD + E2 groups, and ten miRNAs regulated between VCD and VCD + E2 groups. Only miR-200a-3p and miR-200b-3p were up-regulated in both serum exosomes and ovarian tissue in both VCD groups, suggesting that these exosomal miRNAs could be associated with ovarian activity. In the hepatic tissue, only miR-370-3p (p = 0.02) was up-regulated in the VCD + E2 group, as observed in serum. Our results suggest that VCD-induced estropause and E2 replacement have an impact on the profile of serum exosomal miRNAs. The miR-200 family was increased in serum exosomes and ovarian tissue and may be a candidate biomarker of ovarian function.
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Affiliation(s)
| | | | | | - Jéssica Damé Hense
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | | | - Sarah Ashiqueali
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | - Jeffrey B Mason
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Hariom Yadav
- USF Center for Microbiome Research, and Department of Neurosurgery and Brain Repair, Microbiomes Institute, University of South Florida, Tampa, FL, USA
| | - Michal Masternak
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL, USA
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - Augusto Schneider
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
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10
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Zucon Bacelar AC, Momesso NR, Pederro FHM, Gonçalves A, Ervolino E, Chaves-Neto AH, Biguetti CC, Matsumoto MA. Aged and induced-premature ovarian failure mouse models affect diestrus profile and ovarian features. PLoS One 2023; 18:e0284887. [PMID: 38064437 PMCID: PMC10707698 DOI: 10.1371/journal.pone.0284887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/11/2023] [Indexed: 12/18/2023] Open
Abstract
Sex hormones exert a wide influence on several systems of the human body, especially in women, who undergo intense changes in the trans and postmenopausal periods. Different experimental models are used to mimic these conditions; however, the impact on hormonal profile may be different. This study aimed to analyze and compare vaginal cytology of different post-estropausal mice models, along with their microscopical ovarian features. Forty-six C57BL/6J female mice with the ages of 4, 6 and 18 months at the beginning of the experiment, weighing about 25-28 grams, constituted five groups: NC-(negative control) animals with no treatment, OVX-SHAM-sham ovariectomized, OVX-ovariectomized, VCD-medicated with 160 mg/kg/day of 4-vinylcyclohexene diepoxide via IP for 20 consecutive days, and Aged-senescent mice under physiological estropause. Euthanasia was performed at different periods for the removal of the ovaries, and after diestrus was confirmed by vaginal cytology for 10 consecutive days. For daily vaginal cytology, morphological and histomorphometric microscopic analyzes were performed. Aged mice presented significant increased neutrophils when compared to VCD group, as well as increased cornified epithelial cells when compared to OVX mice, and also increased nucleated epithelial cells when compared to VCD and OVX. NC and OVX-SHAM ovaries presented innumerous follicles at different stages of development, while VCD showed marked follicular atresia, depleted of primordial or developing follicles and a predominance of interstitial cells. The ovaries of aged mice were predominantly constituted by corpus luteum degenerated into corpus albicans, with rare antral follicles. All analyzed models led to different permanent diestrus profiles caused by each model, as indicated by ovarian features. This should be carefully considered when choosing a post-estropausal experimental model, in order to better correlate this challenging phase of female's life with physiological/pathological conditions.
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Affiliation(s)
- Ana Carolina Zucon Bacelar
- Department of Diagnostics and Surgery, São Paulo State University—Unesp, Araçatuba, School of Dentistry, São Paulo, Brazil
| | - Nataira Regina Momesso
- Department of Diagnostics and Surgery, São Paulo State University—Unesp, Araçatuba, School of Dentistry, São Paulo, Brazil
| | - Felipe Haddad Martim Pederro
- Department of Basic Sciences, São Paulo State University—Unesp, Araçatuba School of Dentistry, São Paulo, Brazil
| | - Alaíde Gonçalves
- Department of Basic Sciences, São Paulo State University—Unesp, Araçatuba School of Dentistry, São Paulo, Brazil
| | - Edilson Ervolino
- Department of Basic Sciences, São Paulo State University—Unesp, Araçatuba School of Dentistry, São Paulo, Brazil
| | | | - Claudia Cristina Biguetti
- School of Podiatric Medicine, The University of Texas at Rio Grande Valley (UTRGV), Rio Grande Valley, Texas, United States of America
| | - Mariza Akemi Matsumoto
- Department of Basic Sciences, São Paulo State University—Unesp, Araçatuba School of Dentistry, São Paulo, Brazil
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11
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Gilmer G, Hettinger ZR, Tuakli-Wosornu Y, Skidmore E, Silver JK, Thurston RC, Lowe DA, Ambrosio F. Female aging: when translational models don't translate. NATURE AGING 2023; 3:1500-1508. [PMID: 38052933 PMCID: PMC11099540 DOI: 10.1038/s43587-023-00509-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/25/2023] [Indexed: 12/07/2023]
Abstract
For many pathologies associated with aging, female patients present with higher morbidity and more frequent adverse events from treatments compared to male patients. While preclinical models are the foundation of our mechanistic understanding of age-related diseases, the most common models fail to recapitulate archetypical female aging trajectories. For example, while over 70% of the top age-related diseases are influenced by the systemic effects of reproductive senescence, we found that preclinical studies that include menopausal phenotypes modeling those seen in humans make up <1% of published aging biology research. The long-term impacts of pregnancy, birthing and breastfeeding are also typically omitted from preclinical work. In this Perspective, we summarize limitations in the most commonly used aging models, and we provide recommendations for better incorporating menopause, pregnancy and other considerations of sex in vivo and in vitro. Lastly, we outline action items for aging biology researchers, journals, funding agencies and animal providers to address this gap.
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Affiliation(s)
- Gabrielle Gilmer
- Discovery Center for Musculoskeletal Recovery, Schoen Adams Research Institute at Spaulding Rehabilitation, Boston, MA, USA
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Medical Scientist Training Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Cellular and Molecular Pathology Graduate Program, University of Pittsburgh, Pittsburgh, PA, USA
| | - Zachary R Hettinger
- Discovery Center for Musculoskeletal Recovery, Schoen Adams Research Institute at Spaulding Rehabilitation, Boston, MA, USA
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Department of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, MA, USA
- Department of Geriatric Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yetsa Tuakli-Wosornu
- Department of Social and Behavioral Sciences, Yale School of Public Health, Yale University, New Haven, CT, USA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Elizabeth Skidmore
- Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Julie K Silver
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Department of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, MA, USA
- Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, Boston, MA, USA
- Department of Physical Medicine and Rehabilitation, Brigham and Women's Hospital, Boston, MA, USA
| | - Rebecca C Thurston
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Dawn A Lowe
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Fabrisia Ambrosio
- Discovery Center for Musculoskeletal Recovery, Schoen Adams Research Institute at Spaulding Rehabilitation, Boston, MA, USA.
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA.
- Department of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, MA, USA.
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12
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Youngblood H, Schoenlein PV, Pasquale LR, Stamer WD, Liu Y. Estrogen dysregulation, intraocular pressure, and glaucoma risk. Exp Eye Res 2023; 237:109725. [PMID: 37956940 PMCID: PMC10842791 DOI: 10.1016/j.exer.2023.109725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/20/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
Characterized by optic nerve atrophy due to retinal ganglion cell (RGC) death, glaucoma is the leading cause of irreversible blindness worldwide. Of the major risk factors for glaucoma (age, ocular hypertension, and genetics), only elevated intraocular pressure (IOP) is modifiable, which is largely regulated by aqueous humor outflow through the trabecular meshwork. Glucocorticoids such as dexamethasone have long been known to elevate IOP and lead to glaucoma. However, several recent studies have reported that steroid hormone estrogen levels inversely correlate with glaucoma risk, and that variants in estrogen signaling genes have been associated with glaucoma. As a result, estrogen dysregulation may contribute to glaucoma pathogenesis, and estrogen signaling may protect against glaucoma. The mechanism for estrogen-related protection against glaucoma is not completely understood but likely involves both regulation of IOP homeostasis and neuroprotection of RGCs. Based upon its known activities, estrogen signaling may promote IOP homeostasis by affecting extracellular matrix turnover, focal adhesion assembly, actin stress fiber formation, mechanosensation, and nitric oxide production. In addition, estrogen receptors in the RGCs may mediate neuroprotective functions. As a result, the estrogen signaling pathway may offer a therapeutic target for both IOP control and neuroprotection. This review examines the evidence for a relationship between estrogen and IOP and explores the possible mechanisms by which estrogen maintains IOP homeostasis.
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Affiliation(s)
- Hannah Youngblood
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, USA
| | - Patricia V Schoenlein
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, USA; Department of Radiology and Georgia Cancer Center, Augusta University, Augusta, GA, USA; Department of Surgery, Augusta University, Augusta, GA, USA
| | - Louis R Pasquale
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - W Daniel Stamer
- Department of Ophthalmology and Biomedical Engineering, Duke University, Durham, NC, USA
| | - Yutao Liu
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, USA; James and Jean Culver Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA; Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, GA, USA.
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13
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Salinero AE, Abi-Ghanem C, Venkataganesh H, Sura A, Smith RM, Thrasher CA, Kelly RD, Hatcher KM, NyBlom V, Shamlian V, Kyaw NR, Belanger KM, Gannon OJ, Stephens SB, Zuloaga DG, Zuloaga KL. Brain Specific Estrogen Ameliorates Cognitive Effects of Surgical Menopause in Mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.09.552687. [PMID: 37609180 PMCID: PMC10441397 DOI: 10.1101/2023.08.09.552687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Menopause is a major endocrinological shift that leads to an increased vulnerability to the risk factors for cognitive impairment and dementia. This is thought to be due to the loss of circulating estrogens, which exert many potent neuroprotective effects in the brain. Systemic replacement of estrogen post-menopause has many limitations, including increased risk for estrogen-sensitive cancers. A more promising therapeutic approach therefore might be to deliver estrogen only to the brain thus limiting adverse peripheral side effects. We examined whether we could enhance cognitive performance by delivering estrogen exclusively to the brain in post-menopausal mice. We modeled surgical menopause via bilateral ovariectomy (OVX). We treated mice with the pro-drug 10β,17β-dihydroxyestra-1,4-dien-3-one (DHED), which can be administered systemically but is converted to 17β-estradiol only in the brain. Young (2.5-month) and middle-aged (11-month-old) female C57BL/6J mice received ovariectomy and a subcutaneous implant containing vehicle (cholesterol) or DHED. At 3.5 months old (young group) and 14.5 months old (middle-aged group), mice underwent behavior testing to assess memory. DHED did not significantly alter metabolic status in middle-aged, post-menopausal mice. In both young and middle-aged mice, the brain-specific estrogen DHED improved spatial memory. Additional testing in middle-aged mice also showed that DHED improved working and recognition memory. These promising results lay the foundation for future studies aimed at determining if this intervention is as efficacious in models of dementia that have comorbid risk factors.
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Affiliation(s)
- Abigail E. Salinero
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Charly Abi-Ghanem
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Harini Venkataganesh
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Avi Sura
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Rachel M. Smith
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Christina A. Thrasher
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Richard D. Kelly
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Katherine M. Hatcher
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Vanessa NyBlom
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
- Department of Psychology and Center for Neuroscience Research, State University of New York at Albany, Albany, NY, USA
| | - Victoria Shamlian
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Nyi-Rein Kyaw
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Kasey M. Belanger
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Olivia J. Gannon
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Shannon B.Z. Stephens
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
| | - Damian G. Zuloaga
- Department of Psychology and Center for Neuroscience Research, State University of New York at Albany, Albany, NY, USA
| | - Kristen L. Zuloaga
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue; MC-136, Albany, NY, USA
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14
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Li Y, Li M, Liu J, Nie G, Yang H. Altered m6A modification is involved YAP-mediated apoptosis response in 4-vinylcyclohexene diepoxide induced ovotoxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115192. [PMID: 37393819 DOI: 10.1016/j.ecoenv.2023.115192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/08/2022] [Accepted: 06/24/2023] [Indexed: 07/04/2023]
Abstract
4-Vinylcyclohexene diepoxide (VCD), an industrial occupational health hazard chemical associated with premature ovarian insufficiency (POI) and reproductive failure. Recently, investigators have paid an increasing attention on VCD model of menopause recapitulates the natural, physiological transition through perimenopause to menopause. The current study sought to examining the mechanisms of follicular loss and exploring the effect of the model on systems outside of the ovaries. In this study, 28 days female SD rats were injected with VCD (160 mg/kg) vehicle for 15 consecutive days, euthanized in the diestrus phase approximately 100 days after the onset of treatment. Reproductive system injury, Neuroendocrine, sex hormone levels and receptor were observed, the levels of N6-methyladenosine (m6A) RNA modification and the expression of modulator genes were first measured. The VCD treated rats showing irregular estrous cycles, significantly reduced in the number of primordial follicles, the preantral and antral follicles also decreased significantly, accompanied by the plasma level of FSH increased and anti-Mullerian hormone (AMH) were decreased. The total m6A level was significantly decreased after exposure to VCD. Moreover, ALKBH5-mediated YAP m6A modification changed in VCD - induced premature ovarian insufficiency. These present work provides a new perspective on m6A modification in the VCD-induced POI rat model, which could provide valuable insights into the mechanisms underlying follicle development and finding new therapeutic targets for follicle prematurely exhausted. Also provide novel methodological guidance and endocrine basis to guide research and extend the applications in premature ovarian insufficiency model.
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Affiliation(s)
- Yang Li
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China
| | - Meifang Li
- Shanxi Provincial Hospital of Chinese Medicine, Taiyuan, Shanxi 030012, China
| | - Jian Liu
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China
| | - Guangning Nie
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China
| | - Hongyan Yang
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, Guangdong 510120, China.
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15
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Zhou Q, Jin X, Wang J, Li H, Yang L, Wu W, Chen W. 4-vinylcyclohexene diepoxide induces premature ovarian insufficiency in rats by triggering the autophagy of granule cells through regulating miR-144. J Reprod Immunol 2023; 157:103928. [PMID: 36889083 DOI: 10.1016/j.jri.2023.103928] [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: 01/04/2023] [Revised: 02/20/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
This research explored the pathological and molecular mechanisms of 4-vinylcyclohexene diepoxide (VCD)-induced POI model. QRT-PCR was exploited to detect miR-144 expression in the peripheral blood of POI patients. Rat and KGN cells were treated with VCD to construct POI rat or cell model, respectively. After miR-144 agomir or MK-2206 treatment, miR-144 level, follicle damage, autophagy level and expressions of key pathway-related proteins in rats were detected, and cell viability and autophagy in KGN cells were detected. MiR-144 was apparently down-regulated in the peripheral blood of POI patients. Decreased miR-144 was viewed in both the serum and ovary of rats, yet this trend was apparently reversed by miR-144 agomir. The increased concentration of Follicle-stimulating hormone (FSH) and Luteinizing hormone (LH), along with decreased concentration of E2 and AMH, was observed in the serum of model rats, which was conspicuously negated by control agomir or miR-144 agomir. Increased number of autophagosomes, up-regulated PTEN, and inactivated AKT/m-TOR pathway induced by VCD in ovary tissues were strikingly offset by miR-144 agomir. Results of cytotoxicity assay revealed that 2 mM VCD prominently repressed KGN cell viability. In vitro experiments confirmed that miR-144 interfered with the effect of VCD on autophagy in KGN cells through the AKT/mTOR pathway. Taken together, VCD triggers autophagy to induce POI after targeting the AKT pathway by inhibiting miR-144, it suggest that up-regulation the expression of miR-144 may have the potential to treat POI.
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Affiliation(s)
- Qun Zhou
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Xin Jin
- Department of Massage, The First Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Jiaxi Wang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Huifang Li
- Department of TCM Gynecology, Tongxiang Maternal and Child Health-Care Center, China
| | - Lijuan Yang
- Department of Gynecology, First School of Clinical Medicine,Yunnan University of Chinese Medicine, China
| | - Weibo Wu
- First School of Clinical Medicine, Zhejiang Chinese Medical University, China
| | - Wenjun Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, China.
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16
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Gannon OJ, Naik JS, Riccio D, Mansour FM, Abi-Ghanem C, Salinero AE, Kelly RD, Brooks HL, Zuloaga KL. Menopause causes metabolic and cognitive impairments in a chronic cerebral hypoperfusion model of vascular contributions to cognitive impairment and dementia. Biol Sex Differ 2023; 14:34. [PMID: 37221553 DOI: 10.1186/s13293-023-00518-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/08/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND The vast majority of women with dementia are post-menopausal. Despite clinical relevance, menopause is underrepresented in rodent models of dementia. Before menopause, women are less likely than men to experience strokes, obesity, and diabetes-known risk factors for vascular contributions to cognitive impairment and dementia (VCID). During menopause, ovarian estrogen production stops and the risk of developing these dementia risk factors spikes. Here, we aimed to determine if menopause worsens cognitive impairment in VCID. We hypothesized that menopause would cause metabolic dysfunction and increase cognitive impairment in a mouse model of VCID. METHODS We performed a unilateral common carotid artery occlusion surgery to produce chronic cerebral hypoperfusion and model VCID in mice. We used 4-vinylcyclohexene diepoxide to induce accelerated ovarian failure and model menopause. We evaluated cognitive impairment using behavioral tests including novel object recognition, Barnes maze, and nest building. To assess metabolic changes, we measured weight, adiposity, and glucose tolerance. We explored multiple aspects of brain pathology including cerebral hypoperfusion and white matter changes (commonly observed in VCID) as well as changes to estrogen receptor expression (which may mediate altered sensitivity to VCID pathology post-menopause). RESULTS Menopause increased weight gain, glucose intolerance, and visceral adiposity. VCID caused deficits in spatial memory regardless of menopausal status. Post-menopausal VCID specifically led to additional deficits in episodic-like memory and activities of daily living. Menopause did not alter resting cerebral blood flow on the cortical surface (assessed by laser speckle contrast imaging). In the white matter, menopause decreased myelin basic protein gene expression in the corpus callosum but did not lead to overt white matter damage (assessed by Luxol fast blue). Menopause did not significantly alter estrogen receptor expression (ERα, ERβ, or GPER1) in the cortex or hippocampus. CONCLUSIONS Overall, we have found that the accelerated ovarian failure model of menopause caused metabolic impairment and cognitive deficits in a mouse model of VCID. Further studies are needed to identify the underlying mechanism. Importantly, the post-menopausal brain still expressed estrogen receptors at normal (pre-menopausal) levels. This is encouraging for any future studies attempting to reverse the effects of estrogen loss by activating brain estrogen receptors.
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Affiliation(s)
- Olivia J Gannon
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Janvie S Naik
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - David Riccio
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Febronia M Mansour
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Charly Abi-Ghanem
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Abigail E Salinero
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Richard D Kelly
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Heddwen L Brooks
- Department of Physiology, University of Arizona College of Medicine, Tucson, AZ, 85724, USA
| | - Kristen L Zuloaga
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA.
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17
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Song W, Qiu YT, Li XZ, Sun QY, Chen LN. 4-vinylcyclohexene diepoxide induces apoptosis by excessive reactive oxygen species and DNA damage in human ovarian granulosa cells. Toxicol In Vitro 2023; 91:105613. [PMID: 37182589 DOI: 10.1016/j.tiv.2023.105613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/27/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
4-Vinylcyclohexene diepoxide (VCD) is a hazardous industrial material which is widely used in the production of fragrances, rubber tires, antioxidants, pesticides, flame retardants and plasticizers. Previous studies have shown that exposure to VCD damages the female reproductive system, but the effects and mechanisms of VCD exposure on human granulosa cells are not reported. In this study, we used a human granulosa cell line (SVOG) to explore the effects of VCD exposure and found that VCD exposure had toxic effects on SVOG cells in vitro. VCD exposure led to excessive accumulation of intracellular ROS, caused DNA damage in cells, altered the expression of some key genes related with apoptosis and oxidative stress, and ultimately inhibited the proliferative capacity of granulosa cells, resulting in increased apoptosis. Overall, our findings provide solid evidence showing that VCD exposure produces severe damage to human granulosa cells, which is helpful for understanding the reproductive toxicity of VCD and etiology of infertility.
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Affiliation(s)
- Wei Song
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Yu-Ting Qiu
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-Zhen Li
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Qing-Yuan Sun
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Lei-Ning Chen
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou 510317, China.
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18
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Ocañas SR, Ansere VA, Kellogg CM, Isola JVV, Chucair-Elliott AJ, Freeman WM. Chromosomal and gonadal factors regulate microglial sex effects in the aging brain. Brain Res Bull 2023; 195:157-171. [PMID: 36804773 PMCID: PMC10810555 DOI: 10.1016/j.brainresbull.2023.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 02/17/2023]
Abstract
Biological sex contributes to phenotypic sex effects through genetic (sex chromosomal) and hormonal (gonadal) mechanisms. There are profound sex differences in the prevalence and progression of age-related brain diseases, including neurodegenerative diseases. Inflammation of neural tissue is one of the most consistent age-related phenotypes seen with healthy aging and disease. The pro-inflammatory environment of the aging brain has primarily been attributed to microglial reactivity and adoption of heterogeneous reactive states dependent upon intrinsic (i.e., sex) and extrinsic (i.e., age, disease state) factors. Here, we review sex effects in microglia across the lifespan, explore potential genetic and hormonal molecular mechanisms of microglial sex effects, and discuss currently available models and methods to study sex effects in the aging brain. Despite recent attention to this area, significant further research is needed to mechanistically understand the regulation of microglial sex effects across the lifespan, which may open new avenues for sex informed prevention and treatment strategies.
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Affiliation(s)
- Sarah R Ocañas
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
| | - Victor A Ansere
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Collyn M Kellogg
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Jose V V Isola
- Aging & Metabolism Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Ana J Chucair-Elliott
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Willard M Freeman
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK, USA; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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19
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Yu S, Zhang L, Wang Y, Yan J, Wang Q, Bian H, Huang L. Mood, hormone levels, metabolic and sleep across the menopausal transition in VCD-induced ICR mice. Physiol Behav 2023; 265:114178. [PMID: 37001841 DOI: 10.1016/j.physbeh.2023.114178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 02/27/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023]
Abstract
AIMS Menopausal transition is the transitional period before menopause in women, often accompanied by abnormal fluctuations in hormone levels that increase the risk of aging-related diseases. 4-vinylcyclohexene dioxide (VCD) is a chemical agent that induces gradual depletion of ovarian follicles, which can mimic the natural human process of transition from menopausal transition to post-menopause. Previous studies have shown that the onset of menopausal transition or menopause in VCD-injected mice is associated with a specific strain, even in inbred animals. Institute of Cancer Research (ICR) mice constitute general purpose outbred population, which has not been well-characterized in the VCD-induced model. Thus, the current study aimed to explore the characteristic features, including sleep, mood, and metabolism, of the model by examining the effect of timing of VCD injection in ICR mice to extend the applications of this model. MATERIALS AND METHODS ICR mice were randomly divided into six groups: 20d VCD and 20d Control, 35d VCD and 35d Control, 52d VCD and 52d Control. VCD mice were intraperitoneally injected with VCD (160 mg/kg), while Control mice were injected intraperitoneally with sesame oil for 4 consecutive weeks, five times a week daily. A vaginal smear was used to observe the estrous cycle of the mice. On the 20th, 35th, and 52nd day after VCD or sesame oil injection, the ovarian morphology, the number of atretic cells, hormone levels, anxiety, depression-like behaviors, sleep phase, and energy metabolism were observed. KEY FINDINGS The menopausal transition model was successfully replicated by injecting VCD into ICR mice. On the specific days after VCD treatment, the number of atretic follicles increased, the level of E2 decreased and FSH increased, the depressive- and anxiety-like behavior increased, the time of REM and NREM sleep time decreased, and energy metabolism was reduced. SIGNIFICANCE These results suggested that the ICR mice model has human-like characteristics during the menopause transition. Moreover, the ICR model has a long menopausal transition duration.
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Affiliation(s)
- Shuang Yu
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Lixin Zhang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Yanyan Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Jinming Yan
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Qi Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Hongsheng Bian
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China
| | - Lili Huang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Harbin 150040, China.
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20
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Song W, Li A, Sha QQ, Liu SY, Zhou Y, Zhou CY, Zhang X, Li XZ, Jiang JX, Li F, Li C, Schatten H, Ou XH, Sun QY. Maternal exposure to 4-vinylcyclohexene diepoxide during pregnancy induces subfertility and birth defects of offspring in mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160431. [PMID: 36423845 DOI: 10.1016/j.scitotenv.2022.160431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/13/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
4-vinylcyclohexene diepoxide (VCD), widely used in industry, is a hazardous compound that can cause premature ovarian failure, but whether maternal VCD exposure affects the health and reproduction of offspring is unknown. Here we focused on the effects of VCD on fertility and physical health of F1 and F2 offspring in mice. The pregnant mice were injected intraperitoneally with different dosages of VCD once every day from 6.5 to 18.5 days post-coitus (dpc). We showed that maternal exposure to VCD during pregnancy significantly reduced the litter size and ovarian reserve, while increasing microtia occurrences of F1 mice. The cytospread staining showed a significant inhibition of meiotic prophase I progression from the zygotene stage to the pachytene stage. Mechanistically, the expression level of DNA damage marker (γ-H2AX) and BAX/BCL2 ratios were significantly increased, and RAD51 and DMC1 were extensively recruited to DNA double strand breaks sites in the oocytes of offspring from VCD-exposed mothers. Overall, our results provide solid evidence showing that maternal exposure to VCD during pregnancy has intergenerational deleterious effects on the offspring.
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Affiliation(s)
- Wei Song
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China; College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ang Li
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Qian-Qian Sha
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Shao-Yuan Liu
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Yong Zhou
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Chang-Yin Zhou
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Xue Zhang
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Xiao-Zhen Li
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Jia-Xin Jiang
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Fei Li
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Chao Li
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri-Columbia, Columbia, MO 65211, USA
| | - Xiang-Hong Ou
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China.
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Guangdong Second Provincial General Hospital, Guangzhou 510317, China; College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China.
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21
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Zhang Y, Han D, Yu X, Shao X, Zong C, Zhang M, Wang J, Liang J, Ge P. MiRNA-190a-5p promotes primordial follicle hyperactivation by targeting PHLPP1 in premature ovarian failure. Front Genet 2022; 13:1034832. [PMID: 36406123 PMCID: PMC9669437 DOI: 10.3389/fgene.2022.1034832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/21/2022] [Indexed: 12/11/2023] Open
Abstract
We previously screened 6 differentially expressed miRNAs in ovarian tissues of 4-vinylcyclohexene diepoxide (VCD)-treated premature ovarian failure (POF) model in SD rats, including miRNA-190a-5p, miRNA-98-5p, miRNA-29a-3p, miRNA-144-5p, miRNA-27b-3p, miRNA-151-5p. In this study, to investigate the mechanisms causing the onset of POF, we first identified miRNAs with earlier differential expression at consecutive time points in the VCD-treated rat POF model and explored the mechanisms by which the target miRNAs promote POF. The SD rats were injected with VCD for 15 days to induce POF. Additionally, we collected rat blood and ovaries at the same time every day for 15 consecutive days, and luteinizing hormone (LH), follicle-stimulating hormone (FSH), Anti-Mullerian hormone (AMH), and estradiol (E2) serum levels were detected by ELISA. Six miRNAs expression were measured in rat ovaries by qRT-PCR. Dual-luciferase reporter gene assays were employed to predict and verify the target gene (PHLPP1) of target miRNAs (miRNA-190a-5p). Western blot was examined to detect the expression levels of PHLPP1, AKT, p-AKT, FOXO3a, p-FOXO3a, and LHR proteins on the target gene PHLPP1 and its participation in the primordial follicular hyperactivation-related pathways (AKT-FOXO3a and AKT-LH/LHR). During the VCD modeling POF rat ovaries, miRNA-190a-5p was the first to show significant differential expression, i.e., 6th of VCD treating, and PHLPP1 was verified to be a direct downstream target of it. Starting from the 6th of VCD treatment, the more significant the up-regulation trend of miRNA-190a-5p expression, the more obvious the down-regulation trend of PHLPP1 and LHR mRNA and protein expression, accompanied by the more severe phosphorylation of AKT and FOXO3a proteins, thus continuously over-activating the rat primordial follicle to promote the development of POF. In conclusion, miRNA-190a-5p may become a potential biomarker for early screening of POF, and it can continuously activate primordial follicles in rats by targeting the expression of PHLPP1 and key proteins in the AKT-FOXO3a and AKT-LH/LHR pathways.
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Affiliation(s)
- Yuchi Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Dongwei Han
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaoyan Yu
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xinyu Shao
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
- The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Chuju Zong
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
- Heilongjiang Institute for Drug Control, Harbin, China
| | - Manyu Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Junzhi Wang
- Department of Dermatology, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jingwen Liang
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Pengling Ge
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
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22
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Li HY, Wang J, Liang LF, Shen SY, Li W, Chen XR, Li B, Zhang YQ, Yu J. Sirtuin 3 Plays a Critical Role in the Antidepressant- and Anxiolytic-like Effects of Kaempferol. Antioxidants (Basel) 2022; 11:1886. [PMID: 36290610 PMCID: PMC9598871 DOI: 10.3390/antiox11101886] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/07/2022] [Accepted: 09/20/2022] [Indexed: 12/03/2022] Open
Abstract
An estimated 20% of women experience depression at some point during menopause. Hormone replacement therapy (HRT), as the main therapy for depression and other menopausal syndromes, comes with a few undesirable side effects and a potential increase in cancer and cardiovascular risk. Consequently, there is a dire need for the development of new therapies to treat menopausal depression. Oxidative stress combined with the decline in sex hormones might explain the occurrence of psychological symptoms characteristic of menopause. Therefore, antioxidants have been suggested as a promising therapy for aging-associated diseases, such as menopausal depression. As a flavonoid antioxidant, kaempferol might have a potential neuroprotective action. Hence, the study was conducted to assess the potential antidepressant action of kaempferol and clarify the underlying mechanism. The results show that kaempferol has potential beneficial effects on VCD-induced rodent model of menopausal depression and produces antioxidant effects as well as increases the deacetylation of superoxide dismutase 2 (SOD2) and the protein level of Sirtuin3 (Sirt3) in the hippocampus. On the contrary, Sirt3 depletion abrogated the antidepressant- and anxiolytic-like effects as well as antioxidant effects of kaempferol. In conclusion, kaempferol might produce antidepressant effects via upregulating the expression of Sirt3, the major deacetylase in mitochondria, and subsequently activate the mitochondrial antioxidases. These findings shed some light on the use of kaempferol or vegetables and herbs that contain kaempferol as a complementary therapy for menopausal depression.
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Affiliation(s)
- Hao-Yuan Li
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jing Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Ling-Feng Liang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Shi-Yu Shen
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Wei Li
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiao-Rong Chen
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Bing Li
- Center Laboratories, Jinshan Hospital of Fudan University, Shanghai 201508, China
| | - Yu-Qiu Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jin Yu
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function, Fudan University, Shanghai 200433, China
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23
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Miao Y, Wan W, Zhu K, Pan M, Zhao X, Ma B, Wei Q. Effects of 4-vinylcyclohexene diepoxide on the cell cycle, apoptosis, and steroid hormone secretion of goat ovarian granulosa cells. In Vitro Cell Dev Biol Anim 2022; 58:220-231. [PMID: 35386089 DOI: 10.1007/s11626-022-00663-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/24/2022] [Indexed: 12/19/2022]
Abstract
4-Vinylcyclohexene diepoxide (VCD) is a potentially hazardous industrial chemical that may enter a goat's body in various ways during industrial breeding. Ovarian granulosa cells (GCs) play a critical role in supporting follicle development and hormone synthesis. However, there are few studies on the effect of VCD on goat ovarian GCs. In this study, goat ovarian GCs were isolated and treated with VCD. The results showed that treatment with VCD increased the proportion of S phase and G2/M cells, but decreased the proportion of G1 phase. VCD treatment significantly inhibited the expression of cyclin A and cyclin-dependent kinase 2 (CDK2). But the expression levels of p21 and p27 were increased. VCD could induce an apparent increase in the proportion of apoptosis and the level of cleaved caspase 3. Treatment with VCD significantly reduced the progesterone and estrogen concentration in the medium in which goat ovarian GCs were cultured. Correspondingly, the expression level of steroidogenic acute regulatory protein (STAR) was significantly downregulated. Treatment with 0.25 and 0.5 mM VCD, the protein expression level of insulin-like growth factor 1 receptor (IGF1R) and Akt were significantly decreased. Moreover, treatment with 0.25 mM VCD significantly inhibited the phosphorylation of Akt. In conclusion, VCD exposure had cytotoxic effects such as decreased cell viability, disordered cell cycle, increased apoptosis, and interference with steroid hormone synthesis on goat GCs. These cytotoxic effects of VCD on goat GCs may be due to the downregulation of IGF1R and the inhibition of IGF1R/Akt signaling pathway.
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Affiliation(s)
- Yuyang Miao
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Wenjing Wan
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Kunyuan Zhu
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Menghao Pan
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Xiaoe Zhao
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Baohua Ma
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China.
| | - Qiang Wei
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, 712100, Yangling, China.
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24
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Qin J, Chen J, Xu H, Xia Y, Tang W, Wang W, Li C, Tang Y, Wang Y. Low-Intensity Pulsed Ultrasound Promotes Repair of 4-Vinylcyclohexene Diepoxide-Induced Premature Ovarian Insufficiency in SD Rats. J Gerontol A Biol Sci Med Sci 2022; 77:221-227. [PMID: 34417809 DOI: 10.1093/gerona/glab242] [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: 03/03/2021] [Indexed: 11/12/2022] Open
Abstract
Women with premature ovarian insufficiency (POI) may be more vulnerable to a variety of health risks. To seek a new method to treat the disease, the effects of low-intensity pulsed ultrasound (LIPUS) on promoting repair of ovarian injury in female SD rats induced by 4-vinylcyclohexene diepoxide (VCD) were explored in this research. A total of 24 female SD rats were subjected to intraperitoneal injection of VCD to induce POI. Successful modeling was achieved in 22 rats, which were then randomized into VCD + LIPUS group (n = 13) and VCD group (n = 9). The control group (n = 5) was injected with equal normal saline. Hematoxylin and eosin staining, enzyme-linked immunosorbent assay, Western blot analysis, scanning electron microscope, immunohistochemistry, and terminal deoxynucleotidyl transferase-mediated nick end labeling assay were applied to detect the results. The results indicated that rats in the VCD group showed disorder in the estrous cycle, the number of atresia follicles and apoptosis granulosa cells increased (p < .05). After the LIPUS treatment, the estrous cycle recovered, the number of follicles increased (p < .05), the level of E2 and anti-Müllerian hormone enhanced (p < .05), and the follicle-stimulating hormone decreased (p < .05). The expression of NF-κB p65, TNFα, Bax, ATF4, and caspase-3 in ovarian tissue was significantly decreased (p < .05). These findings showed that LIPUS could promote the repair of the VCD-induced ovarian damage in SD rats, which has the potential to be further applied in the clinic.
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Affiliation(s)
- Juan Qin
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
- Department of Obstetrics and Gynecology, Guiyang Maternal and Child Health Care Hospital, Guizhou Medical University, China
| | - Junlin Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Haopeng Xu
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Yi Xia
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Wentao Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Wei Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Chongyan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Yilin Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
| | - Yan Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, China
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25
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Qi Q, Zhang X, Yao L, Chen Y, Weng H. Pueratin improves diminished ovarian reserve by inhibiting apoptosis. Exp Ther Med 2021; 22:1423. [PMID: 34721677 PMCID: PMC8549093 DOI: 10.3892/etm.2021.10858] [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: 06/07/2021] [Accepted: 07/30/2021] [Indexed: 11/22/2022] Open
Abstract
Pueratin (Pue) is an extract from Pueraria lobata, and exhibits therapeutic effects for the treatment of inflammation. However, the beneficial effects and mechanisms underlying Pue in the treatment of diminished ovarian reserve (DOR) remains to be fully elucidated. The aim of the present study was to investigate the effect of Pue on Bcl-2 and Bax protein expression in rats with DOR, associated with infertility within clinical practice, induced by 4-vinylcyclohexene diepoxide (VCD). A model of DOR was established in female Sprague Dawley rats by an intraperitoneal injection of 80 mg/kg VCD daily for 45 days. From day 1, the Sprague Dawley rats were orally administered with drugs daily for 45 days. They were divided into normal, model, Pue-low dose (L), Pue-medium dose (M) and Pue-high dose (H) groups (50, 100 and 300 mg/kg Pue, respectively). Follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) levels were subsequently detected using ELISA. H&E staining and TUNEL staining were used to evaluate histopathological changes and apoptosis levels in the ovary, respectively. Bcl-2 and Bax protein expression levels in rat ovaries were evaluated using immunohistochemistry and western blotting. Compared with those in the model group, FSH and LH levels in the Pue-L, -M and -H groups were significantly decreased, whilst E2 levels were significantly increased (P<0.05). After intragastric administration, the volume of the ovaries and uteri of rats in the Pue groups was increased compared with the model group, and the numbers of primordial follicles and primary follicles were also increased. The number of apoptotic cells and the expression of Bax were significantly reduced in a dose-dependent manner (P<0.05), compared with the model group. In addition, Bcl-2 protein expression and the Bcl-2/Bax ratio were found to be significantly increased in the Pue-treated groups in a dose-dependent manner (P<0.05), compared with the model group. In conclusion, Pue treatment improved ovarian function by regulating hormone balance in addition to Bcl-2 and Bax expression.
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Affiliation(s)
- Quan Qi
- Reproductive Medicine Center, Guangdong Women and Children Hospital, Guangdong, Guangzhou 511442, P.R. China
| | - Xiqian Zhang
- Reproductive Medicine Center, Guangdong Women and Children Hospital, Guangdong, Guangzhou 511442, P.R. China
| | - Li Yao
- Reproductive Medicine Center, Guangdong Women and Children Hospital, Guangdong, Guangzhou 511442, P.R. China
| | - Ye Chen
- Reproductive Medicine Center, Guangdong Women and Children Hospital, Guangdong, Guangzhou 511442, P.R. China
| | - Huinan Weng
- Reproductive Medicine Center, Guangdong Women and Children Hospital, Guangdong, Guangzhou 511442, P.R. China
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26
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SEN HALICIOGLU B, SAADAT KASM, TUGLU MI. The relationship of 4-vinylcyclohexene diepoxide toxicity with cell death, oxidative stress, and gap junctions in female rat ovaries. Reprod Med Biol 2021; 20:543-553. [PMID: 34646083 PMCID: PMC8499605 DOI: 10.1002/rmb2.12398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/03/2021] [Accepted: 06/03/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE It was aimed to investigate the damage caused by VCD toxicity in the ovary, which women working in the industrial field are frequently exposed to, and to show the relationship between gap junction protein, oxidative stress, and apoptosis, which is thought to be effective in the emergence of this damage. METHODS Rats were divided into three groups as control, sham, and VCD. Histological stainings were performed for histopathological evaluations in ovary. Serum AMH level was measured with the ELISA. Then, iNOS, caspase 3, connexin 43 protein, and mRNA expression levels were analyzed by immunohistochemistry and RT-qPCR methods. RESULTS As a result of the analyses, different amounts of degenerations such as hemorrhage, vacuolization, and fibrosis were observed in the ovary. VCD group AMH level decreased compared to control. In VCD group, iNOS and caspase 3 expressions increased, while connexin 43 expression decreased. CONCLUSIONS It was shown that VCD caused damage to all ovarian tissue. Also, it was revealed for the first time that VCD triggered apoptosis by increasing oxidative stress in the ovary and suppressed connexin 43 which was also effective in the survival of granulosa cells. The devastating effect of exposure to occupational chemicals such as VCD on fertility was demonstrated in this study.
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Affiliation(s)
- Busra SEN HALICIOGLU
- Faculty of MedicineDepartment of Histology and EmbryologyGaziantep UniversityGaziantepTurkey
- Faculty of MedicineDepartment of Histology and EmbryologyManisa Celal Bayar UniversityManisaTurkey
| | | | - Mehmet Ibrahim TUGLU
- Faculty of MedicineDepartment of Histology and EmbryologyManisa Celal Bayar UniversityManisaTurkey
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Xu H, Xia Y, Qin J, Xu J, Li C, Wang Y. Effects of low intensity pulsed ultrasound on expression of B-cell lymphoma-2 and BCL2-Associated X in premature ovarian failure mice induced by 4-vinylcyclohexene diepoxide. Reprod Biol Endocrinol 2021; 19:113. [PMID: 34284777 PMCID: PMC8290625 DOI: 10.1186/s12958-021-00799-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 07/09/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Premature ovarian failure (POF) is a common disease in the field of Gynecology. Low intensity pulsed ultrasound (LIPUS) can promote tissue repair and improve function. This study was performed to determine the effects of LIPUS on granulosa cells (GCs) apoptosis and protein expression of B-cell lymphoma-2 (Bcl-2) and BCL2-Associated X (Bax) in 4-vinylcyclohexene diepoxide (VCD)-induced POF mice and investigate the mechanisms of LIPUS on ovarian function and reserve capacity. METHODS The current POF mice model was administrated with VCD (160 mg/kg) by intraperitoneal injection for 15 consecutive days. The mice were divided into the POF group, LIPUS group and control group. In the LIPUS group, the right ovary of mice was treated by LIPUS (acoustic intensity was 200 mW/cm2, frequency was 0.3 MHz, and duty cycle was 20%) for 20 min, 15 consecutive days from day 16. The mice of the POF group and control group were treated without ultrasonic output. The basic observation and body weight were recorded. Hematoxylin and eosin staining (H&E staining) and enzyme-linked immunosorbent assay (ELISA) were applied to detect ovarian follicle development, ovarian morphology and sex hormone secretion. Ovarian GCs apoptosis was detected by TUNEL assay and immunohistochemistry. RESULTS The results showed that VCD can induce estrus cycle disorder, follicular atresia, sex hormone secretion decreased and GCs apoptosis in mice to establish POF model successfully. LIPUS significantly promoted follicular development, increased sex hormone secretion, inhibited excessive follicular atresia and GCs apoptosis. The mechanism might be achieved by increasing the protein expression of Bcl-2 and decreasing the expression of Bax in ovaries. CONCLUSIONS LIPUS can improve the POF induced by VCD. These findings have the potential to provide novel methodological foundation for the future research, which help treat POF patients in the clinic.
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Affiliation(s)
- Haopeng Xu
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, 400016, Chongqing, China
| | - Yi Xia
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, 400016, Chongqing, China
| | - Juan Qin
- Department of Gynaecology, Guiyang Maternal and Child Health Hospital, Guizhou, 550003, China
| | - Jie Xu
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, 400016, Chongqing, China
| | - Chongyan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, 400016, Chongqing, China
| | - Yan Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, 400016, Chongqing, China.
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Pontifex MG, Martinsen A, Saleh RNM, Harden G, Tejera N, Müller M, Fox C, Vauzour D, Minihane AM. APOE4 genotype exacerbates the impact of menopause on cognition and synaptic plasticity in APOE-TR mice. FASEB J 2021; 35:e21583. [PMID: 33891334 DOI: 10.1096/fj.202002621rr] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/19/2021] [Accepted: 03/25/2021] [Indexed: 01/15/2023]
Abstract
The impact of sex and menopausal status in Alzheimer's disease remains understudied despite increasing evidence of greater female risk, particularly in APOE4 carriers. Utilizing female APOE-TR mice maintained on a high-fat diet background we induced ovarian failure through repeated VCD injections, to mimic human menopause. At 12 months of age, recognition memory and spatial memory were assessed using object recognition, Y-maze spontaneous alternation, and Barnes maze. A VCD*genotype interaction reduced the recognition memory (P < .05), with APOE4 VCD-treated animals unable to distinguish between novel and familiar objects. APOE4 mice displayed an additional 37% and 12% reduction in Barnes (P < .01) and Y-maze (P < .01) performance, indicative of genotype-specific spatial memory impairment. Molecular analysis indicated both VCD and genotype-related deficits in synaptic plasticity with BDNF, Akt, mTOR, and ERK signaling compromised. Subsequent reductions in the transcription factors Creb1 and Atf4 were also evident. Furthermore, the VCD*genotype interaction specifically diminished Ephb2 expression, while Fos, and Cnr1 expression reduced as a consequence of APOE4 genotype. Brain DHA levels were 13% lower in VCD-treated animals independent of genotype. Consistent with this, we detected alterations in the expression of the DHA transporters Acsl6 and Fatp4. Our results indicate that the combination of ovarian failure and APOE4 leads to an exacerbation of cognitive and neurological deficits.
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Affiliation(s)
| | | | | | - Glenn Harden
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Noemi Tejera
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Michael Müller
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Chris Fox
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - David Vauzour
- Norwich Medical School, University of East Anglia, Norwich, UK
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Wang Y, Guo T, Ke H, Zhang Q, Li S, Luo W, Qin Y. Pathogenic variants of meiotic double strand break (DSB) formation genes PRDM9 and ANKRD31 in premature ovarian insufficiency. Genet Med 2021; 23:2309-2315. [PMID: 34257419 PMCID: PMC8629753 DOI: 10.1038/s41436-021-01266-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 12/18/2022] Open
Abstract
Purpose The etiology of premature ovarian insufficiency (POI) is heterogeneous, and genetic factors account for 20–25% of the patients. The primordial follicle pool is determined by the meiosis process, which is initiated by programmed DNA double strand breaks (DSB) and homologous recombination. The objective of the study is to explore the role of DSB formation genes in POI pathogenesis. Methods Variants in DSB formation genes were analyzed from a database of exome sequencing in 1,030 patients with POI. The pathogenic effects of the potentially causative variants were verified by further functional studies. Results Three pathogenic heterozygous variants in PRDM9 and two in ANKRD31 were identified in seven patients. Functional studies showed the variants in PRDM9 impaired its methyltransferase activity, and the ANKRD31 variations disturbed its interaction with another DSB formation factor REC114 by haploinsufficiency effect, indicating the pathogenic effects of the two genes on ovarian function were dosage dependent. Conclusion Our study identified pathogenic variants of PRDM9 and ANKRD31 in POI patients, shedding new light on the contribution of meiotic DSB formation genes in ovarian development, further expanding the genetic architecture of POI.
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Affiliation(s)
- Yiyang Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Ting Guo
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Hanni Ke
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Qian Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Shan Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Wei Luo
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China
| | - Yingying Qin
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China. .,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, Shandong, China.
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Clayton ZS, Hutton DA, Mahoney SA, Seals DR. Anthracycline chemotherapy-mediated vascular dysfunction as a model of accelerated vascular aging. ACTA ACUST UNITED AC 2021; 2:45-69. [PMID: 34212156 DOI: 10.1002/aac2.12033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cardiovascular diseases (CVD) are the leading cause of death worldwide, and age is by far the greatest risk factor for developing CVD. Vascular dysfunction, including endothelial dysfunction and arterial stiffening, is responsible for much of the increase in CVD risk with aging. A key mechanism involved in vascular dysfunction with aging is oxidative stress, which reduces the bioavailability of nitric oxide (NO) and induces adverse changes to the extracellular matrix of the arterial wall (e.g., elastin fragmentation/degradation, collagen deposition) and an increase in advanced glycation end products, which form crosslinks in arterial wall structural proteins. Although vascular dysfunction and CVD are most prevalent in older adults, several conditions can "accelerate" these events at any age. One such factor is chemotherapy with anthracyclines, such as doxorubicin (DOXO), to combat common forms of cancer. Children, adolescents and young adults treated with these chemotherapeutic agents demonstrate impaired vascular function and an increased risk of future CVD development compared with healthy age-matched controls. Anthracycline treatment also worsens vascular dysfunction in mid-life (50-64 years of age) and older (65 and older) adults such that endothelial dysfunction and arterial stiffness are greater compared to age-matched controls. Collectively, these observations indicate that use of anthracycline chemotherapeutic agents induce a vascular aging-like phenotype and that the latter contributes to premature CVD in cancer survivors exposed to these agents. Here, we review the existing literature supporting these ideas, discuss potential mechanisms as well as interventions that may protect arteries from these adverse effects, identify research gaps and make recommendations for future research.
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Singh P, Reza MI, Syed AA, Husain A, Katekar R, Gayen JR. Pancreastatin mediated regulation of UCP-1 and energy expenditure in high fructose fed perimenopausal rats. Life Sci 2021; 279:119677. [PMID: 34081990 DOI: 10.1016/j.lfs.2021.119677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/19/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022]
Abstract
AIMS Pancreastatin (PST) is a crucial bioactive peptide derived from chromogranin A (CHGA) proprotein that exhibits an anti-insulin effect on adipocytes. Herein, we investigated the effects of PST on brown adipose tissues (BAT) and white adipose tissue (WAT) in connection with uncoupling protein-1 (UCP-1) regulated energy expenditure in high fructose diet (HFrD) fed and vinylcyclohexenediepoxide (VCD) induced perimenopausal rats. MATERIAL AND METHODS We administered VCD in rats for 17 consecutive days and fed HFrd for 12 weeks. After 12 weeks estradiol and progesterone levels were detected. Furthermore, detection of glucose tolerance, insulin sensitivity, and body composition revealed impaired glucose homeostasis and enhanced PST levels. Effects of enhanced PST on UCP-1 level in BAT and WAT of perimenopausal rats were further investigated. KEY FINDINGS Reduced serum estradiol, progesterone, and attenuated insulin response confirmed perimenopausal model development. Furthermore, enhanced PST serum level and its increased expression in BAT and WAT downregulated the UCP-1 expression. Subsequently, impaired ATP level, NADP/NADPH ratio, citrate synthase activity, enhanced mitochondrial reactive oxygen species (ROS) generation and perturbed mitochondrial membrane potential, further exacerbated mitochondrial dysfunction, cellular ROS production, and promoted apoptosis. Interestingly, PST inhibition by PST inhibitor peptide-8 (PSTi8) displayed a favorable impact on UCP-1 and energy expenditure. SIGNIFICANCE The aforementioned outcomes indicated the substantial role of PST in altering the UCP-1 expression and associated energy homeostasis. Hence our results corroborate novel avenues to unravel the quest deciphering PST's role in energy homeostasis and its association with perimenopause.
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Affiliation(s)
- Pragati Singh
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Mohammad Irshad Reza
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Anees A Syed
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Athar Husain
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Roshan Katekar
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Bimonte-Nelson HA, Bernaud VE, Koebele SV. Menopause, hormone therapy and cognition: maximizing translation from preclinical research. Climacteric 2021; 24:373-381. [PMID: 33977823 DOI: 10.1080/13697137.2021.1917538] [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: 10/21/2022]
Abstract
Menopause-associated and hormone-associated cognitive research has a rich history built from varied disciplines and species. This review discusses landmark rodent and human work addressing cognitive outcomes associated with varied experiences of menopause and hormone therapy. Critical variables in menopause and cognitive aging research are considered, including menopause etiology, background hormone milieu and parameters of exposure to estrogens and progestogens. Recent preclinical research has identified that menopause and ovarian hormone fluctuations across many neurobiological systems affect cognitive aging, mapping novel avenues for future research. Preclinical models provide insight into complex interdisciplinary relationships in a systematic and highly controlled fashion. We highlight that acknowledging the strengths and weaknesses for both preclinical and clinical research approaches is vital to accurate interpretation, optimal translation and the direction of future research. There is great value in collaboration and communication across preclinical and clinical realms, especially regarding reciprocal feedback of findings to advance preclinical models, improve experimental designs and enrich basic science translation to the clinic. In searching for biological mechanisms underlying the cognitive consequences of menopause and hormone therapies, it is noteworthy that clinical and preclinical scientists are grounded in the same fundamental goal of optimizing health outcomes for women across the lifespan.
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Affiliation(s)
- H A Bimonte-Nelson
- Department of Psychology, Arizona State University, Tempe, AZ, USA.,Arizona Alzheimer's Consortium, Phoenix, AZ, USA
| | - V E Bernaud
- Department of Psychology, Arizona State University, Tempe, AZ, USA.,Arizona Alzheimer's Consortium, Phoenix, AZ, USA
| | - S V Koebele
- Department of Psychology, Arizona State University, Tempe, AZ, USA.,Arizona Alzheimer's Consortium, Phoenix, AZ, USA
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Pestana-Oliveira N, Carolino ROG, Kalil-Cutti B, Leite CM, Dalpogeto LC, De Paula BB, Collister JP, Anselmo-Franci J. Development of a Chemical Reproductive Aging Model in Female Rats. Bio Protoc 2021; 11:e3994. [PMID: 34124295 DOI: 10.21769/bioprotoc.3994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/05/2021] [Accepted: 02/15/2021] [Indexed: 11/02/2022] Open
Abstract
Women are born with an abundant but finite pool of ovarian follicles, which naturally and progressively decreased during their reproductive years until menstrual periods stop permanently (menopause). Perimenopause represents the transition from reproductive to non-reproductive life. It is usually characterized by neuroendocrine, metabolic and behavioral changes, which result from a follicular depletion and reduced number of ovarian follicles. During this period, around 45-50 years old, women are more likely to express mood disorders, anxiety, irritability and vasomotor symptoms. The current animal models of reproductive aging do not successfully replicate human perimenopause and the gradual changes that occur in this phase. While the traditional rat model of menopause involves ovariectomy or surgical menopause consisting of the rapid and definitive removal of the ovaries resulting in a complete loss of all ovarian hormones, natural or transitional menopause is achieved by the selective loss of ovarian follicles (perimenopause period). However, the natural aging rodent (around 18-24 months) model fails to reach very low estrogen concentrations and overlaps the processes of somatic and reproductive aging. The chronic exposure of young rodents to 4-vinylcyclohexene diepoxide (VCD) is a well-established experimental model for perimenopause and menopause studies. VCD induces loss of ovarian small follicles (primary and primordial) in mice and rats by accelerating the natural process of atresia (apoptosis). The VCD, ovary-intact or accelerated ovarian failure (AOF) model is the experimental model that most closely matches natural human progression to menopause mimicking both hormonal and behavioral changes typically manifested by women in perimenopause. Graphical abstract: The female reproductive system is regulated by a series of neuroendocrine events controlled by central and peripheral components. (A). The mechanisms involved in this control are extremely complex and have not yet been fully clarified. In female mammals whose ovulation (the most important event in a reproductive cycle) occurs spontaneously, reproductive success is achieved through the precise functional and temporal integration of the hypothalamus-pituitary-ovary (HPO) axis. (B). In women, loss of fertility appears to be primarily associated with exhaustion of ovarian follicles, and this process occurs progressively until complete follicular exhaustion marked by the final menstrual period (FMP). (C). While in female rodents, reproductive aging seems to begin as a neuroendocrine process, in which changes in hypothalamic/pituitary function appear independently of follicular atresia. The traditional rat model of menopause, ovariectomy or surgical menopause consists of the rapid and definitive removal of the ovaries resulting in a complete loss of all ovarian hormones. (D). The chronic exposure (15-30 days) to the chemical compound 4-vinylcyclehexene diepoxide (VCD) in young rodents accelerates gradual failure of ovarian function by progressive depletion of primordial and primary follicles, but retains residual ovarian tissue before brain alterations that occurs in women in perimenopause. Low doses of VCD cause the selective destruction of the small preantral follicles of the ovary without affecting other peripheral tissues.
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Affiliation(s)
- Nayara Pestana-Oliveira
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA.,Department of Physiology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ruither O G Carolino
- Department of Basic and Oral Science, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Bruna Kalil-Cutti
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, Alfenas, MG, Brazil
| | | | - Litamara C Dalpogeto
- Department of Basic and Oral Science, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Bruna Balbino De Paula
- Department of Psychology, School of Philosophy, Science and Letter of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - John P Collister
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA
| | - Janete Anselmo-Franci
- Department of Basic and Oral Science, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
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Tang D, Feng X, Ling L, Zhang W, Luo Y, Wang Y, Xiong Z. Experimental study for the establishment of a chemotherapy-induced ovarian insufficiency model in rats by using cyclophosphamide combined with busulfan. Regul Toxicol Pharmacol 2021; 122:104915. [PMID: 33705838 DOI: 10.1016/j.yrtph.2021.104915] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 11/19/2022]
Abstract
With an improvement in the survival rate of cancer patients, chemotherapy-induced premature ovarian insufficiency (POI) is increasingly affecting the quality of life of female patients. Currently, there are many relevant studies using mice as an animal model. However, a large coefficient of variation for weight in mice is not appropriate for endocrine-related studies, compared with rats; therefore, it is necessary to identify an appropriate experimental model in rats. In this study, cyclophosphamide combined with busulfan was used to establish an animal model. We compared several common modeling methods using chemotherapeutic drugs, cisplatin, cyclophosphamide, and 4-vinylcyclohexene diepoxide (VCD), and we found that the combination of cyclophosphamide and busulfan was more effective in establishing a POI model in rats with few side effects by analyzing general physical conditions, pathological tissue sections of heart, liver, lung, spleen, kidney, uterus, and ovary, serum hormone levels, and follicle counts; thus, providing a more reliable model basis for subsequent studies.
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Affiliation(s)
- Dongyuan Tang
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Xiushan Feng
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Li Ling
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Wenqian Zhang
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Yanjing Luo
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Yaping Wang
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China
| | - Zhengai Xiong
- Department of Gynecology and Obstetics, The Second Affiliated Hospital, Chongqing MedicalUniversity, Chongqing, 400010, People's Republic of China.
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Jeon S, Liu QF, Cai H, Jeong HJ, Kim SH, Kim DI, Lee JH. Administration of a herbal formulation enhanced blastocyst implantation via IκB activation in mouse endometrium. Chin Med 2020; 15:112. [PMID: 33093859 PMCID: PMC7576727 DOI: 10.1186/s13020-020-00395-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/15/2020] [Indexed: 02/04/2023] Open
Abstract
Background BaelanChagsangBang (BCB), a herbal formulation consisting of eleven herbs, may be prescribed as a reproductive functional supplement to improve ovulation and implantation during the treatment of infertility and recurrent abortion in Korean Medicine. This study aimed to investigate the effects and action mechanisms of water-extracted BCB on endometrial receptivity and blastocyst implantation under normal conditions and in a mifepristone (RU486)-induced implantation failure murine model. Methods In vitro, the antioxidant potentials of BCB were evaluated using DPPH and superoxide anion radical scavenging assays and a DCFH-DA assay, and the cytotoxic and cytoprotective effects of BCB were confirmed using an MTT assay. In vivo, C57BL/6 female mice (n = 6 per group) orally received BCB (300 mg/kg/day), a dose similar to that used clinically, from 7 days before pregnancy until the end of the experiment. On day 4 of pregnancy, RU486 (4 mg/kg) was injected subcutaneously to induce implantation failure. The effect of BCB on embryo implantation was evaluated by implantation rate analysis, histological examination, and western blotting of uterus tissues. Results BCB water extract showed strong anti-oxidative and cytoprotective effects in vitro. In vivo administration of BCB water extract increased the number of newborn pups in BCB-treated mice versus sham-treated mice under normal conditions and improved the number of implantation sites in pregnant mice despite RU486 injection. BCB increased the protein levels of cyclooxygenase-2 and inducible nitric oxide synthase through IκB activation. Moreover, the expression levels of matrix metalloproteinases at uterus implantation sites were up-regulated in the BCB-treated group as compared with those in the RU486-treated group. Conclusion These results show BCB improved embryo implantation through IκB activation in our mouse model and suggest that BCB has therapeutic potential in the context of poor endometrial receptivity.
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Affiliation(s)
- Songhee Jeon
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju, 61469 Republic of Korea
| | - Quan Feng Liu
- Department of Neuropsychiatry, Graduate School of Korean Medicine, Dongguk University, Gyeongju, 38066 Republic of Korea
| | - Hua Cai
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju, 61469 Republic of Korea
| | - Ha Jin Jeong
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju, 61469 Republic of Korea
| | - Su-Hyun Kim
- Department of Obstetrics & Gynecology, College of Korean Medicine, Sangji University, Wonju, Gangwon-do 26338 Republic of Korea
| | - Dong-Il Kim
- Department of Obstetrics & Gynecology, College of Korean Medicine, Dongguk University Ilsan Hospital of Korean Medicine, Goyang, Gyeonggi-do 10326 Republic of Korea
| | - Ju-Hee Lee
- College of Korean Medicine, Dongguk University, Goyang, Gyeonggi-do 10326 Republic of Korea
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Wajima D, Hourani S, Dodd W, Patel D, Jones C, Motwani K, Fazal HZ, Hosaka K, Hoh BL. Interleukin-6 Promotes Murine Estrogen Deficiency-Associated Cerebral Aneurysm Rupture. Neurosurgery 2020; 86:583-592. [PMID: 31264696 PMCID: PMC7317988 DOI: 10.1093/neuros/nyz220] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 03/08/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Estrogen deficiency is associated with cerebral aneurysm rupture, but the precise mechanism is unknown. OBJECTIVE To test the hypothesis that IL-6 is required for the increase in aneurysm rupture rate observed in estrogen-deficient mice. METHODS We analyzed IL-6 expression in human cerebral aneurysms. We induced cerebral aneurysms in estrogen-deficient female C57BL/6 mice that had undergone 4-vinylcyclohexene diepoxide (VCD) treatment or bilateral ovariectomy (OVE). Mice were blindly randomized to selective IL-6 inhibition (IL-6 receptor [IL-6R] neutralizing antibody, n = 25) or control (isotype-matched IgG, n = 28). Murine cerebral arteries at the circle of Willis were assessed for aneurysm rupture and macrophage infiltration. RESULTS IL-6 is expressed in human cerebral aneurysms, but not in control arteries. Serum IL-6 is elevated in ovariectomized female mice compared to sham control (14.3 ± 1.7 pg/mL vs 7.4 ± 1.5 pg/mL, P = .008). Selective IL-6R inhibition suppressed cerebral aneurysm rupture in estrogen-deficient mice compared with control (VCD: 31.6% vs 70.0%, P = .026; OVE: 28.6% vs 65.2%, P = .019). IL-6R inhibition had no effect on formation or rupture rate in wild-type mice. IL-6R neutralizing antibody significantly reduced macrophage infiltration at the circle of Willis (1.9 ± 0.2 vs 5.7 ± 0.6 cells/2500 μm2; n = 8 vs n = 15; P < .001). CONCLUSION IL-6 is increased in the serum of estrogen-deficient mice and appears to play a role in promoting murine estrogen deficiency-associated cerebral aneurysm rupture via enhanced macrophage infiltration at the circle of Willis. Inhibition of IL-6 signaling via IL-6 receptor neutralizing antibody inhibits aneurysm rupture in estrogen-deficient mice. IL-6 receptor inhibition had no effect on aneurysm formation or rupture in wild-type animals.
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Affiliation(s)
- Daisuke Wajima
- Department of Neurosurgery, University of Florida, Gainesville, Florida.,Department of Neurosurgery, School of Medicine, Nara Medical University, Kashihara, Japan
| | - Siham Hourani
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - William Dodd
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - Devan Patel
- College of Medicine, Florida State University, Tallahassee, Florida
| | - Chad Jones
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - Kartik Motwani
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - Hanain Z Fazal
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - Koji Hosaka
- Department of Neurosurgery, University of Florida, Gainesville, Florida
| | - Brian L Hoh
- Department of Neurosurgery, University of Florida, Gainesville, Florida
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Cao LB, Leung CK, Law PWN, Lv Y, Ng CH, Liu HB, Lu G, Ma JL, Chan WY. Systemic changes in a mouse model of VCD-induced premature ovarian failure. Life Sci 2020; 262:118543. [PMID: 33038381 DOI: 10.1016/j.lfs.2020.118543] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
AIMS Premature ovarian failure (POF) is a phenomenon in which the ovaries fail before the age of 40 years. Prior research has used a wide range of mouse models designed to reflect different causes of POF, including genetic factors, iatrogenic factors, and immune factors. The current study employed a mouse model of POF induced by 4-vinylcyclohexene diepoxide (VCD). VCD can specifically kill primordial and primary ovarian follicles, which destroys the follicular reserve and causes POF. The current study sought to specify and extend the applications of this model by examining the effect of timing and VCD dose and by exploring the effect of the model on systems outside of the ovaries. MATERIALS AND METHODS A VCD-induced mouse model of POF was constructed using established methods (VCD injected continuously at a concentration of 160 mg/kg for 15 days). Evidence for a graded effect of VCD was observed using a range of concentrations, and the best windows for examining VCD's effects on follicles and associated tissues were identified. KEY FINDINGS The mouse model used here successfully simulated two common complications of POF - emotional changes and decreased bone density. The model's application was then extended to examine the links between disease and intestinal microorganisms, and evidence was found linking POF to the reproductively relevant composition of the gut microbiota. SIGNIFICANCE These findings provide novel methodological guidance for future research, and they significantly extend the applications and scope of VCD-induced POF mouse models.
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Affiliation(s)
- Lian Bao Cao
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China
| | - Chi Kwan Leung
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China; SDIVF R&D Centre, Hong Kong Science and Technology Parks, Shatin, Hong Kong, China
| | - Patrick Wai-Nok Law
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China
| | - Yue Lv
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China
| | - Cheuk-Hei Ng
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China; SDIVF R&D Centre, Hong Kong Science and Technology Parks, Shatin, Hong Kong, China
| | - Hong Bin Liu
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China; SDIVF R&D Centre, Hong Kong Science and Technology Parks, Shatin, Hong Kong, China
| | - Gang Lu
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China.
| | - Jin Long Ma
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong 250001, China; CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China; SDIVF R&D Centre, Hong Kong Science and Technology Parks, Shatin, Hong Kong, China
| | - Wai Yee Chan
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China.
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Li M, Xie L, Li Y, Liu J, Nie G, Yang H. Synergistic effect of Huyang Yangkun Formula and embryonic stem cells on 4-vinylcyclohexene diepoxide induced premature ovarian insufficiency in mice. Chin Med 2020; 15:83. [PMID: 32774448 PMCID: PMC7405416 DOI: 10.1186/s13020-020-00362-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Background Huyang Yangkun Formula (HYYKF) was developed based on theory of traditional Chinese medicine as well as clinical experience and used to improve ovarian function of premature ovarian insufficiency (POI) patients. Transplantation of embryonic stem cells (ESCs) has great potential in improving POI, and studies have confirmed that traditional Chinese medicine promoted the treatment effect of ESCs. In the present study, we compared the effect of combining HYYKF and ESCs, single HYYKF treatment and single ESCs intervention on POI mice to explore the effect of combination of HYYKF and ESCs in improving ovarian function. Methods C57BL/6 mice were used to create a POI model by 15-day intraperitoneal injection of 160 mg/kg of 4-vinylcyclonhexene diepoxide (VCD) and then treated with HYYKF, ESCs transplantation and combination of ESCs and HYYKF. When the treatments were finished, estrus cycle, ovarian follicle counting, serum sex hormone level, and expression of key nodes in the transforming growth factor beta/transforming growth factor beta-activated kinase 1 (TGF-β/TAK1) signaling pathway were determined. Results Combination therapy brought down the abnormal estrus cycle rate to 5.26%, significantly lower than that of HYYKF or ESCs alone (30%, 25%, respectively). The numbers of follicles at all levels were increased significantly in the combination ESCs with HYYKF group (P < 0.05), especially that of antral follicles (P < 0.01), which was not increased significantly when HYYKF or ESCs was single used. The level of anti-Mullerian hormone (AMH) was more significantly increased in the combination ESCs with HYYKF group (P < 0.01) than that of HYYKF or ESCs alone (both P < 0.05). The expression of the key nodes TGF-β1, TAK1, JNK, Smad4 and FSHR in the TGF-β/TAK1 pathway were obviously affected in the SCHY group. Conclusion Both HYYKF and ESCs improve the ovarian function of POI induced by VCD, and a combination of HYYKF and ESCs has the advantage that they work together to promote follicles developing probably by inhibiting expression of the TGF-β1/TAK1 pathway.
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Affiliation(s)
- Meifang Li
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006 China
| | - Li Xie
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006 China
| | - Yang Li
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Jian Liu
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Guangning Nie
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Hongyan Yang
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China.,Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, Guangdong 510120 China
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Ahmadian S, Sheshpari S, Pazhang M, Bedate AM, Beheshti R, Abbasi MM, Nouri M, Rahbarghazi R, Mahdipour M. Intra-ovarian injection of platelet-rich plasma into ovarian tissue promoted rejuvenation in the rat model of premature ovarian insufficiency and restored ovulation rate via angiogenesis modulation. Reprod Biol Endocrinol 2020; 18:78. [PMID: 32758249 PMCID: PMC7405361 DOI: 10.1186/s12958-020-00638-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023] Open
Abstract
Premature Ovarian Insufficiency (POI) is viewed as a type of infertility in which the menopausal status occurs before the physiological age. Several therapeutic strategies have been introduced in clinic for POI treatment, although the outputs are not fully convincing. Platelet-rich plasma (PRP) is a unique blood product widely applied in regenerative medicine, which is based on the releasing of the growth factors present in platelets α-granules. In the current investigation, we examined the effectiveness of PRP as a therapeutic alternative for POI animals. POI in Wistar albino rats was induced by daily intraperitoneal (IP) administration of gonadotoxic chemical agent, 4-vinylcyclohexene dioxide (VCD) (160 mg/ kg) for 15 consecutive days. After POI induction, the PRP solution was directly injected intra-ovarian in two concentrations via a surgical intervention. Every two weeks post-injection, pathological changes were monitored in the ovaries using Hematoxylin-Eosin staining method, until eight weeks. Follicle Stimulating Hormone (FSH) content in serum was measured, together with the expression of the angiogenic-related transcripts ANGPT2 and KDR by real-time qPCR. Furthermore the fertility status of the treated rats was evaluated by mating trials. Histopathological examination revealed successful POI induction via the depletion of morphologically normal follicles in rats following VCD treatment compared to the control rats. The injection of PRP at two concentrations reduced the number and extent of the follicular atresia and inflammatory responses (p < 0.05). The expression of both ANGPT2 and KDR transcripts were significantly increased in POI rats due to enhanced inflammation, while these values were modulated after PRP administration (p < 0.05) compared to POI rats. FSH showed a decreased trend in concentration eight weeks after PRP treatment, but not statistically significant (p > 0.05). Nevertheless, a clear improvement in litter counts was found in POI rats receiving PRP compared to the non-treated POI group, being able to consider PRP as a facile, quick, accessible, safe and relatively cheap alternative therapeutic strategy to revert POI-related pathologies.
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Affiliation(s)
- Shahin Ahmadian
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, 5138663134, Iran
- Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, 537517169, Iran
| | - Sepideh Sheshpari
- Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, 5138947977, Iran
| | - Mohammad Pazhang
- Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, 537517169, Iran
| | - Alberto Miranda Bedate
- Laboratory for Translational Immunology (LTI), Universitair Medisch Centrum Utrecht, (UMCU), Utrecht, Heidelberglaan 100, 3584, CX, The Netherlands
| | - Rahim Beheshti
- Department of Veterinary Science, Islamic Azad University Shabestar Branch, Shabestar, 5381637181, Iran
| | | | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5165665811, Iran
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5165665811, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5165665811, Iran.
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran.
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40
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Cao LB, Liu HB, Lu G, Lv Y, Leung CK, Du YZ, Wang WM, Xiong ZQ, Su XW, Li HJ, Chen ZJ, Ma JL, Chan WY. Hormone-Like Effects of 4-Vinylcyclohexene Diepoxide on Follicular Development. Front Cell Dev Biol 2020; 8:587. [PMID: 32850784 PMCID: PMC7412635 DOI: 10.3389/fcell.2020.00587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/17/2020] [Indexed: 12/31/2022] Open
Abstract
Background 4-vinylcyclohexene diepoxide (VCD) has long been considered a hazardous occupational chemical that promotes ovarian failure. However, VCD is also used as a research compound to chemically induce animal models of premature ovarian insufficiency (POI), and in related work we unexpectedly found that VCD apparently exhibits both dose- and duration-dependent opposing, hormone-like effects on the maintenance of the primordial follicle pool, follicle development, and ovulation induction. Results We conducted experiments with cultured murine ovaries and performed transplantation experiments using postnatal day (PD) 2 and PD12 mice and found that low-dose, short-term exposure to VCD (VCDlow) actually protects the primordial/primary follicle pool and improves the functional ovarian reserve (FOR) by disrupting follicular atresia. VCDlow inhibits follicular apoptosis and regulates the Pten-PI3K-Foxo3a pathway. Short-term VCD exposure in vivo (80 mg/kg, 5 days) significantly increases the number of superovulated metaphase II oocytes, preovulatory follicles, and corpus luteum in middle-aged mice with diminished ovarian reserve (DOR). We demonstrate that low-dose but not high-dose VCD promotes aromatase levels in granulosa cells (GCs), thereby enhancing the levels of estradiol secretion. Conclusion Our study illustrates a previously unappreciated, hormone-like action for the occupational “ovotoxin” molecule VCD and strongly suggests that VCDlow should be explored for its potential utility for treating human ovarian follicular development disorders, including subfertility in perimenopausal women.
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Affiliation(s)
- Lian Bao Cao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
| | - Hong Bin Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
| | - Gang Lu
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
| | - Yue Lv
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
| | - Chi Kwan Leung
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,SDIVF R&D Centre, Hong Kong Science and Technology Parks, Sha Tin, China
| | - Yan Zhi Du
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wu Ming Wang
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
| | - Zhi Qiang Xiong
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,SDIVF R&D Centre, Hong Kong Science and Technology Parks, Sha Tin, China
| | - Xian Wei Su
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,SDIVF R&D Centre, Hong Kong Science and Technology Parks, Sha Tin, China
| | - Hong Jian Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,SDIVF R&D Centre, Hong Kong Science and Technology Parks, Sha Tin, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Long Ma
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,SDIVF R&D Centre, Hong Kong Science and Technology Parks, Sha Tin, China
| | - Wai Yee Chan
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
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Park MJ, Ahn JW, Kim KH, Bang J, Kim SC, Jeong JY, Choi YE, Kim CW, Joo BS. Prediction of ovarian aging using ovarian expression of BMP15, GDF9, and C-KIT. Exp Biol Med (Maywood) 2020; 245:711-719. [PMID: 32223330 DOI: 10.1177/1535370220915826] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
IMPACT STATEMENT Ovarian aging is becoming a more important issue in terms of fertility preservation and infertility treatment. Serum anti-Mullerian hormone (AMH) level and antral follicle count (AFC) are being practically used as markers of ovarian aging as well as ovarian reserve in human. However, these factors have some drawbacks in assessing ovarian aging and reserve. Therefore, the identification of ovarian expressions of BMP15, GDF9, and C-KIT according to female could be applied as a potent predictor of ovarian aging. This work provides new information on the development of diagnosis and treatment strategy of age-related fertility decline and premature ovarian insufficiency.
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Affiliation(s)
- Min Jung Park
- Korea Institute for Public Sperm Bank, Busan 49241, Korea
| | - Jun-Woo Ahn
- Department of Obstetrics and Gynecology, College of Medicine, Ulsan University Hospital, Ulsan 44033, Korea
| | - Ki Hyung Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital, Busan 49241, Korea
| | - Junghee Bang
- Department of Cardiothoracic Surgery, Dong-A University Hospital, Busan 602-812, Korea
| | - Seung Chul Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital, Busan 49241, Korea
| | - Jae Yi Jeong
- Department of Obstetrics and Gynecology, Sungkyunkwan University School of Medicine, 51353 Changwon, Korea
| | - Ye Eun Choi
- Department of Obstetrics and Gynecology, Sungkyunkwan University School of Medicine, 51353 Changwon, Korea
| | - Chang-Woon Kim
- Department of Obstetrics and Gynecology, Sungkyunkwan University School of Medicine, 51353 Changwon, Korea
| | - Bo Sun Joo
- Korea Institute for Public Sperm Bank, Busan 49241, Korea.,Department of Cardiothoracic Surgery, Dong-A University Hospital, Busan 602-812, Korea
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Özel F, Kiray M, Göker A, Aydemir S, Mıcılı SC. Protective effect of alpha lipoic acid on 4-vinylcyclohexene diepoxide induced primary ovarian failure in female rats. Taiwan J Obstet Gynecol 2020; 59:293-300. [PMID: 32127153 DOI: 10.1016/j.tjog.2020.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2019] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE The effects of alpha lipoic acid (ALA) and its possible mechanisms in treating Primary ovarian failure (POF) model was studied with 4 vinylcyclohexene diepoxide (VCD). MATERIAL AND METHODS Rats were divided into 4 groups (n = 7) as Control, VCD, VCD + ALA and ALA. POF model was induced by applying VCD intraperitoneally and ALA was administered by oral gavage as 100 mg/day to the VCD + ALA and ALA groups. RESULTS At the end of 42 days, ovarian and uterine tissues were received. The number of primordial and primary follicles were increased and corpus luteum and cystic follicles were decreased in ovarian tissues in VCD + ALA group compared to VCD group. Caspase-3 immunoreactivity in follicular cells was decreased in VCD + ALA group compared to VCD group. eNOS immunoreactivity and eNOS levels were decreased in VCD group and increased in VCD + ALA group while iNOS immunoreactivity and iNOS levels were increased in VCD group, decreased in VCD + ALA group in ovary and uterine tissue. Plasma FSH and LH hormone levels were increased in the VCD but decreased in VCD + ALA group. Estradiol level decreased in the VCD group compared to the other groups. The MDA values were significantly increased in the VCD + ALA group compared to VCD group. In addition, the levels of GSH values were decreased in VCD + ALA group compared to VCD group. CONCLUSION Alpha lipoic acid treatment of rats with VCD-induced POF had a beneficial effect on reducing ovarian damage by improving histological, immunohistochemical, hormone level and oxidative stress markers. Our results show that ALA is an effective treatment of VCD-induced POF rats.
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Affiliation(s)
- Feyyaz Özel
- Dokuz Eylül University, Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Müge Kiray
- Dokuz Eylül University, Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | - Aslı Göker
- Manisa Celal Bayar University, Faculty of Medicine, Department of Obstetrics and Gynecology, Manisa, Turkey
| | - Selma Aydemir
- Dokuz Eylül University, Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Serap Cilaker Mıcılı
- Dokuz Eylül University, Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey.
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Zhao F, Wang W. Gengnianchun Recipe Protects Ovarian Reserve of Rats Treated by 4-Vinylcyclohexene Diepoxide via the AKT Pathway. Int J Endocrinol 2020; 2020:9725898. [PMID: 33381174 PMCID: PMC7758144 DOI: 10.1155/2020/9725898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 11/16/2020] [Accepted: 12/01/2020] [Indexed: 12/22/2022] Open
Abstract
Diminished ovarian reserve (DOR) refers to a decrease in the number and quality of oocytes. Western treatment of DOR does not improve the ovarian reserve fundamentally, and the effect is limited. Gengnianchun recipe (GNC) is a traditional Chinese medicine formula originally applied to treat menopausal syndrome but is also found to be effective in treating clinical DOR patients. Here we aim to examine the effect of GNC in a DOR rat model induced by 4-vinylcyclohexene diepoxide (VCD), a chemical that selectively destroys ovarian small preantral follicles, and further investigate the possible mechanisms. Female SD rats were randomly divided into four groups: control group (C), model group (M), high-dose GNC group (H), and low-dose GNC group (L). Rats in M, H, and L were administered with VCD and normal saline, high-dose GNC, and low-dose GNC separately. Rat ovaries were harvested either to conduct HE staining for follicle count, immunohistochemistry, or western blot. We found that high dose of GNC significantly increased the ovarian index and sustained the number of primordial follicles and primary follicles in VCD treated rats. Moreover, high dose of GNC significantly increased the ovarian protein expression of mouse vasa homologue (MVH), anti-Müllerian hormone (AMH), follicle-stimulating hormone receptor (FSHR), and estrogen receptor β (ERβ) compared with that in the model group. Besides, high-dose GNC significantly increased ovarian AKT phosphorylation and the expression of downstream forkhead box O3 (FOXO3a). Proapoptosis proteins of Bax, cleaved caspase-3, and poly ADP-ribose polymerase (PARP) were significantly decreased after high-dose GNC treatment compared with those in the model group. Taken together, these findings suggest that high-dose GNC could protect ovarian reserve against VCD-induced toxicity via the activation of the AKT signaling pathway and reduced cell apoptosis in SD Rats. This effect could either be induced by the increased FSHR signaling or by the nontranscriptional activation of ERβ, which requires further investigation.
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Affiliation(s)
- Fangui Zhao
- Department of Ultrasound Diagnosis, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Wenjun Wang
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
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Carolino ROG, Barros PT, Kalil B, Anselmo-Franci J. Endocrine profile of the VCD-induced perimenopausal model rat. PLoS One 2019; 14:e0226874. [PMID: 31887176 PMCID: PMC6936812 DOI: 10.1371/journal.pone.0226874] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 12/06/2019] [Indexed: 11/19/2022] Open
Abstract
During the transition to menopause, women experience a variety of physical and psychological symptoms that are directly or indirectly linked to changes in hormone secretion. Establishing animal models with intact ovaries is essential for understanding these interactions and finding new therapeutic targets. In this study, we assessed the endocrine profile, as well as the estrous cycle, in the 4-vinylcyclohexene diepoxide (VCD)-induced follicular depletion rat model in 10-day intervals over 1 month to accurately establish the best period for studies of the transition period. Twenty-eight-day-old female rats were injected daily with VCD or oil s.c. for 15 days and euthanized in the diestrus phase approximately 70, 80, 90 and 100 days after the onset of treatment. The percentage of rats showing irregular cycles and the plasma level of FSH increased only in the 100-day VCD group. Plasma anti-Müllerian hormone (AMH) and progesterone were lower in all VCD groups compared to control groups, while estradiol remained unchanged or higher. As in control groups, dihydrotestosterone (DHT) progressively decreased in the 70-90-day VCD groups; however, it was followed by a sharp increase only in the 100-day VCD group. No changes were found in plasma corticosterone, prolactin, thyroid hormones or luteinizing hormone. Based on the estrous cycle and endocrine profile, we conclude that 1) the time window from 70 to 100 days is suitable to study a perimenopause-like state in this model, and 2) regular cycles with low progesterone and AMH and normal FSH can be used as markers of the early/mid-transition period, whereas irregular cycles associated with higher FSH and DHT can be used as markers of the late transition period to estropause.
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Affiliation(s)
- Ruither O. G. Carolino
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Paulo T. Barros
- Department of Physiology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Bruna Kalil
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, Alfenas, MG, Brazil
| | - Janete Anselmo-Franci
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Slow Freezing Versus Vitrification of Mouse Ovaries: from Ex Vivo Analyses to Successful Pregnancies after Auto-Transplantation. Sci Rep 2019; 9:19668. [PMID: 31873164 PMCID: PMC6928220 DOI: 10.1038/s41598-019-56182-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 11/14/2019] [Indexed: 12/23/2022] Open
Abstract
Slow freezing (SF) is the reference method for ovarian tissue cryopreservation. Vitrification (VT) constitutes an alternative but controversial method. This study compares SF and VT (open [VTo] and closed [VTc] systems) in terms of freezing damage and fertility restoration ability. In vitro analyses of C57Bl/6 SF or VTo-ovaries, immediately after thawing/warming or after culture (cult), revealed that event though follicular density was similar between all groups, nuclear density was decreased in VTo-ovaries compared to CT-ovaries (CT = 0.50 ± 0.012, SF = 0.41 ± 0.03 and VTo = 0.29 ± 0.044, p < 0.01). Apoptosis was higher in VTo-cult ovaries compared to SF-cult ovaries (p < 0.001) whereas follicular Bmp15 and Amh gene expression levels were decreased in the ovaries after culture, mostly after VTo (p < 0.001). Natural mating after auto-transplantation of SF, VTo and VTc-ovaries revealed that most mice recovered their oestrous cycle. Fertility was only restored with SF and VTo ovaries (SF: 68%; VTo: 63%; VTc: 0%; p < 0.001). Mice auto-transplanted with SF and VTo-ovaries achieved the highest number of pregnancies. In conclusion, in vitro, no differences between SF and VTo were evident immediately after thawing/warming but VTo ovaries displayed alterations in apoptosis and follicular specific proteins after culture. In vivo, SF and VTo ovary auto-transplantation fully restored fertility whereas with VTc-ovary auto-transplantation no pregnancies were achieved.
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Waczuk EP, Wagner R, Klein B, da Rocha JBT, Ardisson-Araújo DMP, Barbosa NV. Assessing the toxicant effect of spontaneously volatilized 4-vinylcyclohexane exposure in nymphs of the lobster cockroach nauphoeta cinerea. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 72:103264. [PMID: 31550595 DOI: 10.1016/j.etap.2019.103264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/16/2019] [Accepted: 09/12/2019] [Indexed: 05/27/2023]
Abstract
Vinylcyclohexene (VCH) is an environmental contaminant well known for its ovotoxicant effects in several organisms. However, the mechanisms underlying the toxicity of VCH as well as its harmful effects toward other organs are until unclear. In this work, we assess some endpoint signals of toxicity induced by volatilized VCH exposure using nymphs of the lobster cockroach Nauphoeta cinerea. Nymphs were exposed to VCH via inhalation for 70 days. The levels of volatilized VCH were quantified by headspace gas chromatography and the concentration varied between 3.41 and 7.03 nmol/μl. VCH inhalation caused a reduction of 35% in the survival rate of the exposed animals. Nymphs exposed to volatilized VCH for 35 and 70 days had a reduction in the body weight gain of 1.8- and 2.6-fold, respectively with a reduction in dissected head, fat body, and maturing reproductive organs. The exposure did not change water consumption, excepting on the 20th day (with a 3-fold change) and decreased the food intake significantly. Regarding biochemical markers, we found that the activity of GST from the dissected organs was increased by volatilized VCH after both 35 and 70 days of exposure. The fat body presented the most prominent GST activity especially after 35 days of exposure with 1.6-fold higher than the control group. Exposure also caused an increase in RS levels in the fat body of 1.35-fold and 1.47-fold after 35 and 70 days, respectively and did not affect the activity of the AChE from the head. Our findings support the harmful impact of volatilized VCH inhalation, highlighting the cockroach N.cinerea as a valuable insect model to investigate environmental toxicants.
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Affiliation(s)
- Emily Pansera Waczuk
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil
| | - Roger Wagner
- Departamento: Tecnologia e Ciência dos Alimentos, Centro de Ciência Rurais, Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria, RS, Brazil
| | - Bruna Klein
- Departamento: Tecnologia e Ciência dos Alimentos, Centro de Ciência Rurais, Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria, RS, Brazil
| | - João Batista Teixeira da Rocha
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil
| | - Daniel M P Ardisson-Araújo
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil.
| | - Nilda Vargas Barbosa
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil.
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Xie L, Wu S, Cao D, Li M, Liu J, Nie G, Li Y, Yang H. Huyang yangkun formula protects against 4-Vinylcyclohexene diepoxide-induced premature ovarian insufficiency in rats via the Hippo–JAK2/STAT3 signaling pathway. Biomed Pharmacother 2019; 116:109008. [DOI: 10.1016/j.biopha.2019.109008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 02/06/2023] Open
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Ahmadian S, Sheshpari S, Mahdipour M, Pazhang M, Tsai PSJ, Nouri M, Rahbarghazi R, Shahnazi M. Toxic effects of VCD on kidneys and liver tissues: a histopathological and biochemical study. BMC Res Notes 2019; 12:446. [PMID: 31331386 PMCID: PMC6647313 DOI: 10.1186/s13104-019-4490-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/17/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE We explored detrimental effects of VCD on non-ovarian tissues such as kidneys and liver 14 days post-drug administration. Twelve rats were randomly assigned into two groups. In VCD group, rats received 160 mg/kgbw VCD intraperitoneally for 15 consequent days. Control rats were injected with VCD-free normal saline. At the respective time point, rats were euthanized, blood and tissue samples were collected. H&E staining was performed to evaluate pathological changes. Serum level of ALT, AST, creatinine and urea were also measured. RESULTS Histological analysis revealed hyperemia and follicular atresia in the ovaries, indicating successful POF induction in rats. In renal tissue, extensive tubular necrosis, focal hemorrhage, hyaline casts, and interstitial nephritis were observed. Analysis of hepatic tissue showed numerous hemorrhagic foci, chronic cholangitis, and hepatocyte necrosis, indicating apparent VCD toxicity of both hepatic and renal tissues. The biochemical evaluation revealed a tendency of increase in ALT, AST, creatinine, and Urea in VCD-treated rats; however, the values did not reach significant level. In conclusion, the induction of POF in rats by VCD correlates with renal and hepatic damages. Commensurate with data from this study, any conclusions from experiments based on VCD-induced premature ovarian failure rats should be reported with caution.
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Affiliation(s)
- Shahin Ahmadian
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Sepideh Sheshpari
- Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Shariati St., Tabriz, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, Iran. .,Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, Iran.
| | - Mohammad Pazhang
- Department of Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Pei-Shiue Jason Tsai
- Center for Developmental Biology and Regenerative Medicine Research, National Taiwan University/NTU, Taipei, Taiwan.,Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University/NTU, Taipei, Taiwan
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, Iran.,Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahnaz Shahnazi
- Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Shariati St., Tabriz, Iran.
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Santoro NF. A Role for the Wandering Uterus? Endocrinology 2019; 160:55-56. [PMID: 30496387 DOI: 10.1210/en.2018-00946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 11/19/2022]
Affiliation(s)
- Nanette F Santoro
- Department Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado
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50
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Park SJ, Kim JH, Lee DG, Kim JM, Lee DS. Peroxiredoxin 2 deficiency accelerates age-related ovarian failure through the reactive oxygen species-mediated JNK pathway in mice. Free Radic Biol Med 2018; 123:96-106. [PMID: 29778464 DOI: 10.1016/j.freeradbiomed.2018.05.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/09/2018] [Accepted: 05/12/2018] [Indexed: 11/21/2022]
Abstract
Reactive oxygen species (ROS) produced in biological reactions have been shown to contribute to ovarian aging. Peroxiredoxin 2 (Prx2) is an antioxidant enzyme that protects cells by scavenging ROS; however, its effect on age-related, oxidative stress-associated ovarian failure has not been reported. Here, we investigated its role in age-related ovarian dysfunction and 4-vinylcyclohexene diepoxide (VCD)-induced premature ovarian failure using Prx2-deficient mice. Compared to those in wildtype (WT) mice, serum levels of anti-Müllerian hormone, 17β-estradiol, and progesterone and numbers of follicles and corpora lutea were significantly lower in 18-month-old Prx2-/- mice. Moreover, levels of Bax, cytochrome c, cleaved caspase-3, and phosphorylated JNK proteins were higher and numbers of apoptotic (terminal deoxynucleotidyl transferase dUTP nick end labeling-positive) cells were considerably greater in 18-month-old Prx2-/- ovaries than WT ovaries. Furthermore, the effects of the ovarian toxicant VCD in significantly enhancing ROS levels and apoptosis through activation of JNK-mediated apoptotic signaling were more pronounced in Prx2-/- than WT mouse embryonic fibroblasts. Expression of the steroidogenic proteins StAR, CYP11A1, and 3β-HSD and serum levels of 17β-estradiol and progesterone were also reduced to a greater extent in Prx2-/- mice than WT mice after VCD injection. This reduced steroidogenesis was rescued by addition of the Prx mimic ebselen or JNK inhibitor SP600125. This constitutes the first report that Prx2 deficiency leads to acceleration of age-related or VCD-induced ovarian failure by activation of the ROS-induced JNK pathway. These findings suggest that Prx2 plays an important role in preventing accelerated ovarian failure by inhibiting ROS-induced JNK activation.
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Affiliation(s)
- Sun-Ji Park
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Renal Division, Washington University School of Medicine, St. Louis, MO, USA
| | - Jung-Hak Kim
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Division of Endocrinology, Internal Medicine, University of California, Davis, CA, USA
| | - Dong Gil Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Jin-Man Kim
- Cancer Research Institute and Department of Pathology, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.
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