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Zheng ZX, Feng X, Zhuang L. The Effect of Oxidative Stress and Antioxidants Treatment on Gestational Diabetes Mellitus Outcome: A Scoping Review. Cell Biochem Biophys 2024:10.1007/s12013-024-01417-3. [PMID: 39003362 DOI: 10.1007/s12013-024-01417-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2024] [Indexed: 07/15/2024]
Abstract
Diagnosing a pregnant woman's glucose intolerance is referred to as gestational diabetes mellitus (GDM). Diabetes has been linked to enhanced oxidative stress. In this condition, oxidative stress may damage nucleic acids, fats, and proteins, which in turn affects cell and tissue functions. The present study highlights the relationship between oxidative stress and GDM, with a particular focus on the role of hyperglycemia-induced processes during reactive oxygen species (ROS) oversupply, followed by it discusses the oxidative stress biomarkers and assesses the effects of antioxidant supplements on glycemic control, inflammatory processes, and oxidative stress among individuals with GDM. Two reviewers conducted a comprehensive literature search utilizing the PubMed®, Web of Science™, and Scopus® databases. Only items published in the English language up until June 2024 were taken into account. We conducted a thorough search of research databases to identify articles that had the terms "oxidative stress" or "antioxidant" and "GDM". From this search, we selected 55 relevant papers to be included in this narrative review. Pregnancy-induced hypertension, postpartum bleeding, lower birth weight, a higher risk of hyperbilirubinemia in their neonates, fetal growth retardation, and birth asphyxia were revealed to be outcomes of women enduring major oxidative stress during pregnancy. Furthermore, tight glycemic control both before and throughout pregnancy as well as oxidative stress treatment may help women highly prone to GDM.
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Affiliation(s)
- Zhen-Xia Zheng
- Obstetrics Department, Zhongshan Hospital of Xiamen University, Fujian, China
| | - Xiao Feng
- Department of Pediatrics, Affiliated Zhongshan Hospital of Xiamen University, Fujian, China
| | - Lijuan Zhuang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, Fujian, China.
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Li Q, Zheng T, Chen J, Li B, Zhang Q, Yang S, Shao J, Guan W, Zhang S. Exploring melatonin's multifaceted role in female reproductive health: From follicular development to lactation and its therapeutic potential in obstetric syndromes. J Adv Res 2024:S2090-1232(24)00168-1. [PMID: 38692429 DOI: 10.1016/j.jare.2024.04.025] [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: 03/27/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Melatonin is mainly secreted by the pineal gland during darkness and regulates biological rhythms through its receptors in the suprachiasmatic nucleus of the hypothalamus. In addition, it also plays a role in the reproductive system by affecting the function of the hypothalamic-pituitary-gonadal axis, and by acting as a free radical scavenger thus contributing to the maintenance of the optimal physiological state of the gonads. Besides, melatonin can freely cross the placenta to influence fetal development. However, there is still a lack of overall understanding of the role of melatonin in the reproductive cycle of female mammals. AIM OF REVIEW Here we focus the role of melatonin in female reproduction from follicular development to delivery as well as the relationship between melatonin and lactation. We further summarize the potential role of melatonin in the treatment of preeclampsia, polycystic ovary syndrome, endometriosis, and ovarian aging. KEY SCIENTIFIC CONCEPTS OF REVIEW Understanding the physiological role of melatonin in female reproductive processes will contribute to the advancement of human fertility and reproductive medicine research.
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Affiliation(s)
- Qihui Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Tenghui Zheng
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jiaming Chen
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Baofeng Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Qianzi Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Siwang Yang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jiayuan Shao
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
| | - Wutai Guan
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
| | - Shihai Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China.
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3
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Reiter RJ, Sharma R, DA Chuffa LG, Zuccari DA, Amaral FG, Cipolla-Neto J. Melatonin-mediated actions and circadian functions that improve implantation, fetal health and pregnancy outcome. Reprod Toxicol 2024; 124:108534. [PMID: 38185312 DOI: 10.1016/j.reprotox.2024.108534] [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: 09/04/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
This review summarizes data related to the potential importance of the ubiquitously functioning antioxidant, melatonin, in resisting oxidative stress and protecting against common pathophysiological disorders that accompany implantation, gestation and fetal development. Melatonin from the maternal pineal gland, but also trophoblasts in the placenta, perhaps in the mitochondria, produce this molecule as a hedge against impairment of the uteroplacental unit. We also discuss the role of circadian disruption on reproductive disorders of pregnancy. The common disorders of pregnancy, i.e., stillborn fetus, recurrent fetal loss, preeclampsia, fetal growth retardation, premature delivery, and fetal teratology are all conditions in which elevated oxidative stress plays a role and experimental supplementation with melatonin has been shown to reduce the frequency or severity of these conditions. Moreover, circadian disruption often occurs during pregnancy and has a negative impact on fetal health; conversely, melatonin has circadian rhythm synchronizing actions to overcome the consequences of chronodisruption which often appear postnatally. In view of the extensive findings supporting the ability of melatonin, an endogenously-produced and non-toxic molecule, to protect against experimental placental, fetal, and maternal pathologies, it should be given serious consideration as a supplement to forestall the disorders of pregnancy. Until recently, the collective idea was that melatonin supplements should be avoided during pregnancy. The data summarized herein suggests otherwise. The current findings coupled with the evidence, published elsewhere, showing that melatonin is highly protective of the fertilized oocyte from oxidative damage argues in favor of its use for improving pregnancy outcome generally.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health San Antonio, San Antonio, TX, USA.
| | - Ramaswamy Sharma
- Applied Biomedical Sciences, School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX, USA.
| | - Luiz Gustavo DA Chuffa
- Department of Structural and Functional Biology, Institute of Bioscience of Botucatu, Botucatu, São Paulo, Brazil
| | - Debora Apc Zuccari
- Laboratorio de Investigacao Molecular do Cancer, Faculdade de Medicina de Sao Jose do Rio Preto, Sao Jose do Rio Preto, Brazil
| | - Fernanda G Amaral
- Department of Physiology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Jose Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Liang Y, Wang Y, Zhang X, Jin S, Guo Y, Yu Z, Xu X, Shuai Q, Feng Z, Chen B, Liang T, Ao R, Li J, Zhang J, Cao R, Zhao H, Chen Z, Liu Z, Xie J. Melatonin alleviates valproic acid-induced neural tube defects by modulating Src/PI3K/ERK signaling and oxidative stress. Acta Biochim Biophys Sin (Shanghai) 2024; 56:23-33. [PMID: 38062774 PMCID: PMC10875364 DOI: 10.3724/abbs.2023234] [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: 05/23/2023] [Accepted: 07/27/2023] [Indexed: 01/26/2024] Open
Abstract
Neural tube defects (NTDs) represent a developmental disorder of the nervous system that can lead to significant disability in children and impose substantial social burdens. Valproic acid (VPA), a widely prescribed first-line antiepileptic drug for epilepsy and various neurological conditions, has been associated with a 4-fold increase in the risk of NTDs when used during pregnancy. Consequently, urgent efforts are required to identify innovative prevention and treatment approaches for VPA-induced NTDs. Studies have demonstrated that the disruption in the delicate balance between cell proliferation and apoptosis is a crucial factor contributing to NTDs induced by VPA. Encouragingly, our current data reveal that melatonin (MT) significantly inhibits apoptosis while promoting the restoration of neuroepithelial cell proliferation impaired by VPA. Moreover, further investigations demonstrate that MT substantially reduces the incidence of neural tube malformations resulted from VPA exposure, primarily by suppressing apoptosis through the modulation of intracellular reactive oxygen species levels. In addition, the Src/PI3K/ERK signaling pathway appears to play a pivotal role in VPA-induced NTDs, with significant inhibition observed in the affected samples. Notably, MT treatment successfully reinstates Src/PI3K/ERK signaling, thereby offering a potential underlying mechanism for the protective effects of MT against VPA-induced NTDs. In summary, our current study substantiates the considerable protective potential of MT in mitigating VPA-triggered NTDs, thereby offering valuable strategies for the clinical management of VPA-related birth defects.
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Affiliation(s)
- Yuxiang Liang
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
- Experimental Animal Center of Shanxi Medical UniversityShanxi Key Laboratory of Human Disease and Animal ModelsTaiyuan030001China
| | - Ying Wang
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Xiao Zhang
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
- School of PharmacyShanxi Medical UniversityTaiyuan030001China
| | - Shanshan Jin
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Yuqian Guo
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Zhaowei Yu
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
- School of PharmacyShanxi Medical UniversityTaiyuan030001China
| | - Xinrui Xu
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Qizhi Shuai
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Zihan Feng
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Binghong Chen
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Ting Liang
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Ruifang Ao
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Jianting Li
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Juan Zhang
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Rui Cao
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Hong Zhao
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Zhaoyang Chen
- Experimental Animal Center of Shanxi Medical UniversityShanxi Key Laboratory of Human Disease and Animal ModelsTaiyuan030001China
| | - Zhizhen Liu
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
| | - Jun Xie
- Department of Biochemistry and Molecular BiologyShanxi Key Laboratory of Birth Defect and Cell RegenerationMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan030001China
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Reiter RJ, Sharma R, Romero A, Manucha W, Tan DX, Zuccari DAPDC, Chuffa LGDA. Aging-Related Ovarian Failure and Infertility: Melatonin to the Rescue. Antioxidants (Basel) 2023; 12:antiox12030695. [PMID: 36978942 PMCID: PMC10045124 DOI: 10.3390/antiox12030695] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Aging has a major detrimental effect on the optimal function of the ovary with changes in this organ preceding the age-related deterioration in other tissues, with the middle-aged shutdown leading to infertility. Reduced fertility and consequent inability to conceive by women in present-day societies who choose to have children later in life leads to increased frustration. Melatonin is known to have anti-aging properties related to its antioxidant and anti-inflammatory actions. Its higher follicular fluid levels relative to blood concentrations and its likely synthesis in the oocyte, granulosa, and luteal cells suggest that it is optimally positioned to interfere with age-associated deterioration of the ovary. Additionally, the end of the female reproductive span coincides with a significant reduction in endogenous melatonin levels. Thus, the aims are to review the literature indicating melatonin production in mitochondria of oocytes, granulosa cells, and luteal cells, identify the multiple processes underlying changes in the ovary, especially late in the cessation of the reproductive life span, summarize the physiological and molecular actions of melatonin in the maintenance of normal ovaries and in the aging ovaries, and integrate the acquired information into an explanation for considering melatonin in the treatment of age-related infertility. Use of supplemental melatonin may help preserve fertility later in life and alleviate frustration in women delaying childbearing age, reduce the necessity of in vitro fertilization–embryo transfer (IVF-ET) procedures, and help solve the progressively increasing problem of non-aging-related infertility in women throughout their reproductive life span. While additional research is needed to fully understand the effects of melatonin supplementation on potentially enhancing fertility, studies published to date suggest it may be a promising option for those struggling with infertility.
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Affiliation(s)
- Russel J. Reiter
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
- Correspondence: (R.J.R.); (A.R.); Tel.: +1-210-567-3859 (R.J.R.); +34-91-3943970 (A.R.)
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: (R.J.R.); (A.R.); Tel.: +1-210-567-3859 (R.J.R.); +34-91-3943970 (A.R.)
| | - Walter Manucha
- Instituto de Medicina y Biologia Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Cientificas y Tecnologicas (CONICET), Mendoza 5500, Argentina
| | - Dun-Xian Tan
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
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Potes Y, Cachán-Vega C, Antuña E, García-González C, Menéndez-Coto N, Boga JA, Gutiérrez-Rodríguez J, Bermúdez M, Sierra V, Vega-Naredo I, Coto-Montes A, Caballero B. Benefits of the Neurogenic Potential of Melatonin for Treating Neurological and Neuropsychiatric Disorders. Int J Mol Sci 2023; 24:ijms24054803. [PMID: 36902233 PMCID: PMC10002978 DOI: 10.3390/ijms24054803] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
There are several neurological diseases under which processes related to adult brain neurogenesis, such cell proliferation, neural differentiation and neuronal maturation, are affected. Melatonin can exert a relevant benefit for treating neurological disorders, given its well-known antioxidant and anti-inflammatory properties as well as its pro-survival effects. In addition, melatonin is able to modulate cell proliferation and neural differentiation processes in neural stem/progenitor cells while improving neuronal maturation of neural precursor cells and newly created postmitotic neurons. Thus, melatonin shows relevant pro-neurogenic properties that may have benefits for neurological conditions associated with impairments in adult brain neurogenesis. For instance, the anti-aging properties of melatonin seem to be linked to its neurogenic properties. Modulation of neurogenesis by melatonin is beneficial under conditions of stress, anxiety and depression as well as for the ischemic brain or after a brain stroke. Pro-neurogenic actions of melatonin may also be beneficial for treating dementias, after a traumatic brain injury, and under conditions of epilepsy, schizophrenia and amyotrophic lateral sclerosis. Melatonin may represent a pro-neurogenic treatment effective for retarding the progression of neuropathology associated with Down syndrome. Finally, more studies are necessary to elucidate the benefits of melatonin treatments under brain disorders related to impairments in glucose and insulin homeostasis.
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Affiliation(s)
- Yaiza Potes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Asturias, Spain
- Correspondence: (Y.P.); (B.C.); Tel.: +34-985102767 (Y.P.); +34-985102784 (B.C.)
| | - Cristina Cachán-Vega
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Eduardo Antuña
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Claudia García-González
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Nerea Menéndez-Coto
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Jose Antonio Boga
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - José Gutiérrez-Rodríguez
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Manuel Bermúdez
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Verónica Sierra
- Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), 33300 Villaviciosa, Asturias, Spain
| | - Ignacio Vega-Naredo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Asturias, Spain
| | - Ana Coto-Montes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Asturias, Spain
| | - Beatriz Caballero
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Asturias, Spain
- Correspondence: (Y.P.); (B.C.); Tel.: +34-985102767 (Y.P.); +34-985102784 (B.C.)
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7
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Ramos E, Romero A, Morales-García J. Melatonin: a multitasking indoleamine to modulate hippocampal neurogenesis. Neural Regen Res 2023; 18:503-505. [DOI: 10.4103/1673-5374.350189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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8
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The Role of Melatonin in Pregnancy and the Health Benefits for the Newborn. Biomedicines 2022; 10:biomedicines10123252. [PMID: 36552008 PMCID: PMC9775355 DOI: 10.3390/biomedicines10123252] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/08/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
In the last few years, there have been significant evolutions in the understanding of the hormone melatonin in terms of its physiology, regulatory role, and potential utility in various domains of clinical medicine. Melatonin's properties include, among others, the regulation of mitochondrial function, anti-inflammatory, anti-oxidative and neuro-protective effects, sleep promotion and immune enhancement. As it is also bioavailable and has little or no toxicity, it has been proposed as safe and effective for the treatment of numerous diseases and to preserve human health. In this manuscript, we tried to evaluate the role of melatonin at the beginning of human life, in pregnancy, in the fetus and in newborns through newly published literature studies.
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Xia S, Gao W, Li Y, Ma J, Gong S, Gao Z, Tang W, Tian W, Tang S. Effects of melatonin on intestinal function and bacterial compositions in sucking piglets. J Anim Physiol Anim Nutr (Berl) 2022; 106:1139-1148. [PMID: 35023236 DOI: 10.1111/jpn.13675] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/21/2021] [Accepted: 07/04/2021] [Indexed: 12/18/2022]
Abstract
Melatonin has been reported to affect intestinal function by targeting microbiome, morphological structure, barrier integrity and nutrient absorptive system. While the effect of melatonin on intestinal development in newborn infants is obscure, thus, this study firstly attempted to investigate the hypothesis that melatonin treatment improves intestinal development in sucking piglets. 14 healthy newborn piglets received 10 ml melatonin solution (1 mg/ml) or drinking water (n = 7) for 21 days. The results showed that oral administration of melatonin increased liver relative weight (p < 0.05) but failed to affect growth performance in sucking piglets (p > 0.05). Immunostaining jejunal samples from melatonin group showed high expressions of nnos and claudin1, indicating that melatonin improved intestinal neural development and barrier integrity. Also, melatonin promoted intestinal absorptive function evidenced by the increased serum proline concentration in melatonin-treated piglets compared with the control (p < 0.05). Gut microbiota compositions were tested by 16S rDNA sequencing and the results showed that melatonin increased the relative abundance of Actinobacteria compared with the control (p < 0.05) at the phylum level. However, Selenomonadales was markedly reduced compared with the control at the order level (p < 0.05). Gut and faecal volatile fatty acids were tested to evaluate the microbiota metabolism, but no difference was noticed in volatile fatty acid concentrations (p > 0.05). Melatonin improved intestinal development by affecting neural development, barrier integrity, nutrient absorption and microbiota in sucking piglets.
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Affiliation(s)
- Siting Xia
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
| | - Wei Gao
- Animal Husbandry and Aquatic Affairs Center of Shimen County, Changde, China
| | - Yunxia Li
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
| | - Jie Ma
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
| | - Saiming Gong
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
| | - Zhipeng Gao
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
| | - Wenjie Tang
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Academy of Animal Sciences, Chengdu, China
| | - Wen Tian
- Hunan Jiuding Technology (Group) Co., Ltd, Yangzhou, China
| | - Shengguo Tang
- College of Animal Science and Technology, Hunan Agriculture University, Changsha, China.,Hunan Co-Innovation Center of Animal Production Safety, Changsha, China
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10
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Kokhanov A. Congenital Abnormalities in the Infant of a Diabetic Mother. Neoreviews 2022; 23:e319-e327. [PMID: 35490182 DOI: 10.1542/neo.23-5-e319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Diabetes mellitus is among the most common chronic diseases worldwide. Infants of diabetic mothers are at increased risk of having congenital abnormalities. Tremendous progress has been achieved in the pregnancy care of diabetic women; however, the risk of birth defects associated with maternal diabetes still exists. These anomalies might arise in many organs and systems of the developing fetus. Many mechanisms have been implicated in the teratogenicity of maternal diabetes and it is critical to achieve good glycemic control before conception in women with diabetes. Neonatal clinicians must be able to identify patients at risk and recognize the signs of diabetic embryopathy. This article presents a review of congenital anomalies associated with maternal diabetes.
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Affiliation(s)
- Artemiy Kokhanov
- Department of Neonatology, Memorial Care Miller Children's and Women's Hospital Long Beach, Long Beach, CA
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11
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Arjunan A, Sah DK, Jung YD, Song J. Hepatic Encephalopathy and Melatonin. Antioxidants (Basel) 2022; 11:antiox11050837. [PMID: 35624703 PMCID: PMC9137547 DOI: 10.3390/antiox11050837] [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: 02/12/2022] [Revised: 04/06/2022] [Accepted: 04/24/2022] [Indexed: 11/25/2022] Open
Abstract
Hepatic encephalopathy (HE) is a severe metabolic syndrome linked with acute/chronic hepatic disorders. HE is also a pernicious neuropsychiatric complication associated with cognitive decline, coma, and death. Limited therapies are available to treat HE, which is formidable to oversee in the clinic. Thus, determining a novel therapeutic approach is essential. The pathogenesis of HE has not been well established. According to various scientific reports, neuropathological symptoms arise due to excessive accumulation of ammonia, which is transported to the brain via the blood–brain barrier (BBB), triggering oxidative stress and inflammation, and disturbing neuronal-glial functions. The treatment of HE involves eliminating hyperammonemia by enhancing the ammonia scavenging mechanism in systemic blood circulation. Melatonin is the sole endogenous hormone linked with HE. Melatonin as a neurohormone is a potent antioxidant that is primarily synthesized and released by the brain’s pineal gland. Several HE and liver cirrhosis clinical studies have demonstrated impaired synthesis, secretion of melatonin, and circadian patterns. Melatonin can cross the BBB and is involved in various neuroprotective actions on the HE brain. Hence, we aim to elucidate how HE impairs brain functions, and elucidate the precise molecular mechanism of melatonin that reverses the HE effects on the central nervous system.
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Affiliation(s)
- Archana Arjunan
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea;
| | - Dhiraj Kumar Sah
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Korea;
| | - Young Do Jung
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Korea;
- Correspondence: (Y.D.J.); (J.S.); Tel.: +82-61-379-2706 (J.S.)
| | - Juhyun Song
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea;
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, 264 Seoyangro, Hwasun 58128, Korea
- Correspondence: (Y.D.J.); (J.S.); Tel.: +82-61-379-2706 (J.S.)
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12
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Sun Y, Zhang J, Wang Y, Wang L, Song M, Khan A, Zhang L, Niu B, Zhao H, Li M, Luo T, He Q, Xie X, Liu Z, Xie J. miR-222-3p is involved in neural tube closure by directly targeting Ddit4 in RA induced NTDs mouse model. Cell Cycle 2021; 20:2372-2386. [PMID: 34779712 DOI: 10.1080/15384101.2021.1982506] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Previously our results showed miR-222-3p was significantly downregulated in retinoic acid-induced neural tube defect (NTD) mouse model through transcriptome. Down-regulation of miR-222-3p may be a causative biomarker in NTDs. In this study, RNA was extracted from mouse embryos at E8.5, E9.5 and E10.5, and the expression level of miR-222-3p was measured by quantitative real-time PCR analysis. The preliminary mechanism of miR-222-3p in NTDs involved in cell proliferation, apoptosis and migration was investigated in mouse HT-22 cell line. The expression of miR-222-3p was significantly decreased at E8.5, E9.5 and E10.5 developed in mouse embryos which were consistent with our transcriptome sequencing. Suppression of miR-222-3p in HT-22 cells resulted in the inhibition of cell proliferation and migration, cell cycle and apoptosis. Moreover, DNA damage transcript 4 (Ddit4) was identified as a direct and functional target of miR-222-3p. miR-222-3p is negatively regulated by Ddit4. The mutation of binding site of Ddit4 3'UTR abrogated the responsiveness of luciferase reporters to miR-222-3p and showed that Ddit4 expression partially attenuated the function of miR-222-3p. We preliminatively confirmed that low expression of miR-222-3p has reduced the expression of β-catenin, TCF4 and other related genes in the Wnt/β-catenin signaling pathway.Collectively, these results demonstrated that miR-222-3p regulates the Wnt/β-catenin signaling pathway through Ddit4 inhibition in HT-22 cells, resulted in cell proliferation and apoptosis imbalance, and thus led to neural tube defects.
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Affiliation(s)
- Yuqing Sun
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Juan Zhang
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yufei Wang
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Lei Wang
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Meiyan Song
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Ajab Khan
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Li Zhang
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Bo Niu
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Hong Zhao
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Meining Li
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Tiane Luo
- Department of Statistics, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qiwei He
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xianghui Xie
- Municipal Key Laboratory of Child Development and Nutriomic, Capital Institute of Pediatrics, Beijing, China
| | - Zhizhen Liu
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth, Defect and Cell Regeneration, Shanxi Medical University, Taiyuan, Shanxi, China
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13
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Zhao A, Zhao K, Xia Y, Lyu J, Chen Y, Li S. Melatonin inhibits embryonic rat H9c2 cells growth through induction of apoptosis and cell cycle arrest via PI3K-AKT signaling pathway. Birth Defects Res 2021; 113:1171-1181. [PMID: 34231342 DOI: 10.1002/bdr2.1938] [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: 01/16/2021] [Revised: 04/10/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Our recent epidemiological study revealed that maternal sleep during the periconceptional period should be involved in the risk of congenital heart disease (CHD) in offspring. Melatonin, a sleep related hormone, has been suggested to play a crucial role in embryonic development based on the emerging evidence. In this study, we set out to assess the effect of melatonin on the embryonic cardiac cell growth and to explore the underlying mechanisms. METHODS We observed the effect of different gradient doses of melatonin as 10, 100, or 1,000 μM on cell proliferation in H9c2 embryonic rat cardiac cells. Furthermore, flow cytometry was applied to evaluate the impact on apoptosis and cell cycle. RNA-seq was conducted to screen the changes in expression of mRNA and signaling pathways. Quantitative Real-Time-PCR (qRT-PCR) was then conducted to validate the results. RESULTS It was observed that melatonin could inhibit H9c2 cell growth, at the doses of 100 and 1,000 μM, but not at 10 μM. Moreover, melatonin ranged from 100 to 1,000 μM could instigate cell cycle arrest at G1 phase and simulate apoptosis, in a dose-dependent manner. In addition, melatonin was found to down-regulate the expression of a number of genes, which are related to heart development (SPARC, IFITM3, TNNT2, LOX), and PI3K-Akt signaling pathway activation (FN1, HSP90B1, THBS1, MFGE8, and CLU). CONCLUSIONS Our findings suggested that high level of melatonin could be capable of inhibiting growth through the induction of apoptosis and cell cycle arrest via PI3K-AKT signaling pathway, thereby interfering with embryonic heart development. Considering this study is based on H9c2 embryonic rat cardiac cells, future additional studies using human embryonic cardiac cell are warranted.
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Affiliation(s)
- Anda Zhao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kena Zhao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanqing Xia
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiajun Lyu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiting Chen
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shenghui Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,MOE-Shanghai Key Laboratory of Children's Environmental Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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14
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Ivanov D, Mazzoccoli G, Anderson G, Linkova N, Dyatlova A, Mironova E, Polyakova V, Kvetnoy I, Evsyukova I, Carbone A, Nasyrov R. Melatonin, Its Beneficial Effects on Embryogenesis from Mitigating Oxidative Stress to Regulating Gene Expression. Int J Mol Sci 2021; 22:ijms22115885. [PMID: 34070944 PMCID: PMC8198864 DOI: 10.3390/ijms22115885] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/15/2021] [Accepted: 05/28/2021] [Indexed: 12/16/2022] Open
Abstract
Embryogenesis is a complex multi-stage process regulated by various signaling molecules including pineal and extrapineal melatonin (MT). Extrapineal MT is found in the placenta and ovaries, where it carries out local hormonal regulation. MT is necessary for normal development of oocytes, fertilization and subsequent development of human, animal and avian embryos. This review discusses the role of MT as a regulator of preimplantation development of the embryo and its implantation into endometrial tissue, followed by histo-, morpho- and organogenesis. MT possesses pronounced antioxidant properties and helps to protect the embryo from oxidative stress by regulating the expression of the NFE2L2, SOD1, and GPX1 genes. MT activates the expression of the ErbB1, ErbB4, GJA1, POU5F1, and Nanog genes which are necessary for embryo implantation and blastocyst growth. MT induces the expression of vascular endothelial growth factor (VEGF) and its type 1 receptor (VEGF-R1) in the ovaries, activating angiogenesis. Given the increased difficulties in successful fertilization and embryogenesis with age, it is of note that MT slows down ovarian aging by increasing the transcription of sirtuins. MT administration to patients suffering from infertility demonstrates an increase in the effectiveness of in vitro fertilization. Thus, MT may be viewed as a key factor in embryogenesis regulation, including having utility in the management of infertility.
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Affiliation(s)
- Dmitry Ivanov
- Department of Neonatology, Saint-Petersburg State Pediatric Medical University, Litovskaya Str., 2, 194100 St. Petersburg, Russia; (D.I.); (V.P.); (R.N.)
| | - Gianluigi Mazzoccoli
- Department of Medical Sciences, Division of Internal Medicine and Chronobiology Laboratory, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy; (G.M.); (A.C.)
| | - George Anderson
- Department of Clinical Research, CRC Scotland & London, London E14 6JE, UK;
| | - Natalia Linkova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 St. Petersburg, Russia; (N.L.); (A.D.)
- Department of Therapy, Geriatry and Anti-Aging Medicine, Academy of Postgraduate Education, Federal Medical Biological Agency, 220013 Moscow, Russia
| | - Anastasiia Dyatlova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 St. Petersburg, Russia; (N.L.); (A.D.)
| | - Ekaterina Mironova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 St. Petersburg, Russia; (N.L.); (A.D.)
- Center of Molecular Biomedicine, Saint-Petersburg Institute of Phthisiopulmonology, Lygovsky Ave. 2-4, 191036 St. Petersburg, Russia;
- Correspondence: ; Tel.: +7-(999)-535-95-88
| | - Victoria Polyakova
- Department of Neonatology, Saint-Petersburg State Pediatric Medical University, Litovskaya Str., 2, 194100 St. Petersburg, Russia; (D.I.); (V.P.); (R.N.)
| | - Igor Kvetnoy
- Center of Molecular Biomedicine, Saint-Petersburg Institute of Phthisiopulmonology, Lygovsky Ave. 2-4, 191036 St. Petersburg, Russia;
- Department of Pathology, Saint-Petersburg State University, University Embankment, 7/9, 199034 St. Petersburg, Russia
| | - Inna Evsyukova
- Department of Newborns’ Pathology, Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleyevskaya Liniya, 3, 199034 St. Petersburg, Russia;
| | - Annalucia Carbone
- Department of Medical Sciences, Division of Internal Medicine and Chronobiology Laboratory, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy; (G.M.); (A.C.)
| | - Ruslan Nasyrov
- Department of Neonatology, Saint-Petersburg State Pediatric Medical University, Litovskaya Str., 2, 194100 St. Petersburg, Russia; (D.I.); (V.P.); (R.N.)
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15
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Maternal Melatonin Deficiency Leads to Endocrine Pathologies in Children in Early Ontogenesis. Int J Mol Sci 2021; 22:ijms22042058. [PMID: 33669686 PMCID: PMC7922827 DOI: 10.3390/ijms22042058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/08/2021] [Accepted: 02/15/2021] [Indexed: 12/17/2022] Open
Abstract
The review summarizes the results of experimental and clinical studies aimed at elucidating the causes and pathophysiological mechanisms of the development of endocrine pathology in children. The modern data on the role of epigenetic influences in the early ontogenesis of unfavorable factors that violate the patterns of the formation of regulatory mechanisms during periods of critical development of fetal organs and systems and contribute to the delayed development of pathological conditions are considered. The mechanisms of the participation of melatonin in the regulation of metabolic processes and the key role of maternal melatonin in the formation of the circadian system of regulation in the fetus and in the protection of the genetic program of its morphofunctional development during pregnancy complications are presented. Melatonin, by controlling DNA methylation and histone modification, prevents changes in gene expression that are directly related to the programming of endocrine pathology in offspring. Deficiency and absence of the circadian rhythm of maternal melatonin underlies violations of the genetic program for the development of hormonal and metabolic regulatory mechanisms of the functional systems of the child, which determines the programming and implementation of endocrine pathology in early ontogenesis, contributing to its development in later life. The significance of this factor in the pathophysiological mechanisms of endocrine disorders determines a new approach to risk assessment and timely prevention of offspring diseases even at the stage of family planning.
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16
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17
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De Sousa RAL. Animal models of gestational diabetes: characteristics and consequences to the brain and behavior of the offspring. Metab Brain Dis 2021; 36:199-204. [PMID: 33400069 DOI: 10.1007/s11011-020-00661-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/25/2020] [Indexed: 11/28/2022]
Abstract
Gestational diabetes (GD) is the glucose intolerance that occurs during pregnancy. Mothers who develop diabetes during gestation are at increased risk of developing type 2 diabetes mellitus (T2DM) later in life, and the risk of adverse fetal and neonatal outcomes are also increased as a function of maternal hyperglycemia. Infants who are exposed to fetal hyperglycemia show an increased risk of becoming obese and developing T2DM later in life. Due to the need of new research on this field, and the difficulty of performing studies in human brain, studies using experimental models are necessary to suggest possible ways to avoid or inhibit offspring brain damage or harmful metabolic alterations. Here, it was made a review about the characteristics of the main animal models of GD, and what are the consequences to the brain and behavior of the offspring. In many experimental models, either by pharmacological induction, diet manipulation, or in the use of transgenic animals, glycemic conditions are severe. S961, a selective insulin receptor antagonist, revealed an increased fasting blood glucose level and glucose intolerance during mid-gestation, which returned to basal levels postpartum in mice. GD contributes to offspring neuroinflammation, influences neuronal distribution in central nervous system (CNS), and apoptosis during embryogenesis, which in turn may contribute to changes in behavior and memory in adult life and aging. The usage of animal models to study GD allows to examine extensively the characteristics of this condition, the molecular mechanisms involved and the consequences to the brain and behavior of the offspring.
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Affiliation(s)
- Ricardo Augusto Leoni De Sousa
- School of Biological Sciences and Health, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil.
- Multicenter Post Graduation Program in Physiological Sciences (PMPGCF), Brazilian Society of Physiology, São Paulo, Brazil.
- Neuroscience and Exercise Study Group (Grupo de Estudos em Neurociências e Exercício - GENE), Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil.
- Laboratório de Treinamento Físico (LETFIS), Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367, Km 583, Alto da Jacuba, n° 5000 - CEP 39100-000, Diamantina, MG, Brazil.
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18
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Laste G, Silva AAD, Gheno BR, Rychcik PM. Relationship between melatonin and high-risk pregnancy: A review of investigations published between the years 2010 and 2020. Chronobiol Int 2021; 38:168-181. [PMID: 33432828 DOI: 10.1080/07420528.2020.1863975] [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] [Indexed: 12/17/2022]
Abstract
The purpose of this review was to search for articles on human studies investigating the relationship between melatonin and high-risk pregnancy. An electronic search was conducted in the MEDLINE and PubMed databases from September 2010 to October 2020. The initial search produced 441 articles in PubMed and 407 in MEDLINE. After sorting the titles and abstracts, and removing duplicates, we had nine articles in PubMed and three in Medline. The results of these studies mainly show that the association between melatonin receptor 1B polymorphisms and gestational diabetes mellitus is the most common physiological mechanism relating to melatonin and high-risk pregnancy in this review. In addition, the circadian rhythm, decreased melatonin production, and anti-inflammatory and antioxidant effects were explored. The findings of our review of the literature suggest that this indoleamine is essential in high-risk pregnancy for its potent anti-inflammatory and antioxidant effects, regulation of the circadian rhythm, and genic receptor expression.
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Affiliation(s)
- Gabriela Laste
- Programa de Pós-Graduação em Ciências Médicas, Universidade do Vale do Taquari - Univates , Lajeado, Brasil
| | - André Anjos da Silva
- Programa de Pós-Graduação em Ciências Médicas, Universidade do Vale do Taquari - Univates , Lajeado, Brasil
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19
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Reiter RJ, Sharma R. Central and peripheral actions of melatonin on reproduction in seasonal and continuous breeding mammals. Gen Comp Endocrinol 2021; 300:113620. [PMID: 32950582 DOI: 10.1016/j.ygcen.2020.113620] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/13/2020] [Indexed: 02/08/2023]
Abstract
Under field conditions, especially for mammals that inhabit high latitudes, the regulation of seasonal breeding activity to ensure delivery of the young at the time most conducive to their survival is essential. This is most frequently accomplished by the annual reproductive cycle being linked to seasonal photoperiod changes which determine the nocturnal duration of the pineal melatonin signal. Mating can occur during any season that ensures spring/early summer delivery of the offspring. Thus, the season of mating is determined by the duration of pregnancy. The precise hormonal control of the annual cycle of reproduction by melatonin is accomplished at the level of the hypothalamo-pituitary axis which, in turn, determines the physiological state of the gonad and adnexa due to the regulation of pituitary gonadotrophin release. Many species are continuous rather than seasonal breeders. In these species, melatonin has a minor hormonal influence on the central regulation of reproduction but, nevertheless, its antioxidant functions at the level of the gonads support optimal reproductive physiology. Possibly like all cells, those in the ovary, e.g., granulosa cells and oocytes (less is known about melatonin synthesis by the testes or spermatogenic cells), synthesize melatonin which is used locally to combat free radicals and reactive nitrogen species which would otherwise cause oxidative/nitrosative stress to these critically important cells. Oxidative damage to the oocyte, zygote, blastocyst, etc., results in an abnormal fetus which is either sloughed or gives rise to an unhealthy offspring. The importance of the protection of the gametes (both oocytes and sperm) from oxidative molecular mutilation cannot be overstated. Fortunately, as a highly effective free radical scavenger and indirect antioxidant (by upregulating antioxidant enzyme), locally-produced melatonin is in the optimal location to protect the reproductive system from such damage.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, United States.
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, United States
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Leung JWH, Cheung KK, Ngai SPC, Tsang HWH, Lau BWM. Protective Effects of Melatonin on Neurogenesis Impairment in Neurological Disorders and Its Relevant Molecular Mechanisms. Int J Mol Sci 2020; 21:ijms21165645. [PMID: 32781737 PMCID: PMC7460604 DOI: 10.3390/ijms21165645] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/30/2020] [Accepted: 08/01/2020] [Indexed: 02/05/2023] Open
Abstract
Neurogenesis is the process by which functional new neurons are generated from the neural stem cells (NSCs) or neural progenitor cells (NPCs). Increasing lines of evidence show that neurogenesis impairment is involved in different neurological illnesses, including mood disorders, neurogenerative diseases, and central nervous system (CNS) injuries. Since reversing neurogenesis impairment was found to improve neurological outcomes in the pathological conditions, it is speculated that modulating neurogenesis is a potential therapeutic strategy for neurological diseases. Among different modulators of neurogenesis, melatonin is a particularly interesting one. In traditional understanding, melatonin controls the circadian rhythm and sleep-wake cycle, although it is not directly involved in the proliferation and survival of neurons. In the last decade, it was reported that melatonin plays an important role in the regulation of neurogenesis, and thus it may be a potential treatment for neurogenesis-related disorders. The present review aims to summarize and discuss the recent findings regarding the protective effects of melatonin on the neurogenesis impairment in different neurological conditions. We also address the molecular mechanisms involved in the actions of melatonin in neurogenesis modulation.
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Affiliation(s)
- Joseph Wai-Hin Leung
- Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada;
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada
| | - Kwok-Kuen Cheung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (K.-K.C.); (S.P.-C.N.)
| | - Shirley Pui-Ching Ngai
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (K.-K.C.); (S.P.-C.N.)
| | - Hector Wing-Hong Tsang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (K.-K.C.); (S.P.-C.N.)
- Correspondence: (H.W.-H.T.); (B.W.-M.L.)
| | - Benson Wui-Man Lau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (K.-K.C.); (S.P.-C.N.)
- Correspondence: (H.W.-H.T.); (B.W.-M.L.)
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21
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Wei CF, Chen MH, Lin CC, Guo YL, Lin SJ, Liao HF, Hsieh WS, Chen PC. Association between maternal shift work and infant neurodevelopmental outcomes: results from the Taiwan Birth Cohort Study with propensity-score-matching analysis. Int J Epidemiol 2020; 48:1545-1555. [PMID: 30927436 DOI: 10.1093/ije/dyz045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Maternal shift work is associated with preterm delivery, small-for-gestational-age new-borns, childhood obesity and future behavioural problems. However, the adverse effects on and interactions of maternal shift work with infant neurodevelopment remain uncertain. Therefore, we examined the associations between maternal-shift-work status and infant neurodevelopmental parameters. METHODS The Taiwan Birth Cohort Study is a nationwide birth cohort study following representatively sampled mother-infant pairs in 2005. The participants' development and exposure conditions were assessed by home interviews with structured questionnaires at 6 and 18 months of age. Propensity scores were calculated with predefined covariates for 1:1 matching. Multivariate conditional logistic regression and the Cox proportional-hazards model were used to examine the association between maternal-shift-work status and infant neurodevelopmental-milestone-achievement status. RESULTS In this study, 5637 term singletons were included, with 2098 cases selected in the propensity-score-matched subpopulation. Persistent maternal shift work was associated with increased risks of delays in gross-motor neurodevelopmental milestones [aOR = 1.36, 95% confidence interval (CI) = 1.06-1.76 for walking steadily], fine-motor neurodevelopmental milestones (aOR = 1.39, 95% CI = 1.07-1.80 for scribbling) and social neurodevelopmental milestones (aOR = 1.35, 95% CI = 1.03-1.76 for coming when called upon). Moreover, delayed gross-motor and social development were identified in the propensity-score-matched sub-cohort. CONCLUSIONS This study shows negative associations between maternal shift work and delayed neurodevelopmental-milestone achievement in the gross-motor, fine-motor and social domains at 18 months. Future research is necessary to elucidate the possible underlying mechanisms and long-term health effects.
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Affiliation(s)
- Chih-Fu Wei
- Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan.,Department of Environmental and Occupational Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Mei-Huei Chen
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.,Department of Pediatrics, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Ching-Chun Lin
- Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Yueliang Leon Guo
- Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan.,Department of Environmental and Occupational Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan.,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Shio-Jean Lin
- Department of Pediatrics, Chi Mei Medical Center, Tainan, Taiwan
| | - Hua-Fang Liao
- School of Physical Therapy, National Taiwan University
| | - Wu-Shiun Hsieh
- Department of Pediatrics, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan.,Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan
| | - Pau-Chung Chen
- Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan.,Department of Environmental and Occupational Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan.,Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan.,Office of Occupational Safety and Health, National Taiwan University Hospital, Taipei, Taiwan.,Innovation and Policy Center for Population Health and Sustainable Environment, National Taiwan University College of Public Health, Taipei, Taiwan
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Yu S, Zhang X, Xu Z, Hu C. Melatonin promotes proliferation of neural stem cells from adult mouse spinal cord via the PI3K/AKT signaling pathway. FEBS Lett 2019; 593:1751-1762. [PMID: 31127855 DOI: 10.1002/1873-3468.13458] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/07/2019] [Accepted: 05/21/2019] [Indexed: 01/03/2023]
Abstract
In this study, we tested the effect of melatonin on proliferation and differentiation of neural stem/progenitor cells (NSPCs) obtained from adult mouse spinal cord. We found that melatonin increases neurosphere formation from adult spinal cord NSPCs but does not alter the differentiation of the cells. Western blot results show that adult spinal cord NSPCs express both MT1 and MT2 melatonin receptors. The melatonin receptor antagonist 4P-PDOT abrogates the melatonin-induced neurosphere formation. Melatonin increases the phosphorylation level of protein kinase B (AKT). Blockage of phosphatidylinositol 3-kinase (PI3K), a kinase upstream of AKT, abolishes the stimulatory effect of melatonin on spinal cord NSPCs. We conclude that melatonin promotes the proliferation of adult spinal cord NSPCs via the PI3K/AKT signaling pathway.
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Affiliation(s)
- Shuntai Yu
- Department of Physiology and Biophysics, School of Life Sciences, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Xuefeng Zhang
- Department of Physiology and Biophysics, School of Life Sciences, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Zilan Xu
- Department of Physiology and Biophysics, School of Life Sciences, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Changlong Hu
- Department of Physiology and Biophysics, School of Life Sciences, Institutes of Brain Science, Fudan University, Shanghai, China
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23
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Ji S, Zhou W, Li X, Liu S, Wang F, Li X, Zhao T, Ji G, Du J, Hao A. Maternal hyperglycemia disturbs neocortical neurogenesis via epigenetic regulation in C57BL/6J mice. Cell Death Dis 2019; 10:211. [PMID: 30824686 PMCID: PMC6397163 DOI: 10.1038/s41419-019-1438-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/09/2019] [Accepted: 01/25/2019] [Indexed: 12/15/2022]
Abstract
Offspring of mothers with hyperglycemia during pregnancy have a higher incidence of long-term neuropsychiatric disorders than offspring from a normal pregnancy, indicating that neocortical neurogenesis might be affected by maternal hyperglycemia. A paucity of study evaluating the effects of hyperglycemia on neocortical neurogenetic differentiation of neural stem cells, and the mechanism remains unclear. We sought to investigate the the roles and possible molecular mechanism of maternal hyperglycemia on neocortical neurogenetic differentiation of neural stem cells. We established a mouse model of a hyperglycemic pregnancy to study effects of intrauterine exposure to maternal hyperglycemia on neocortical neurogenesis. We observed morphological changes in the neocortex and detected the neurogenetic differentiation of neural stem cells in offspring affected by high glucose levels. We investigated the regulatory network between epigenetic modification and transcription factors in differentiated neural stem cells under hyperglycemic conditions. Maternal hyperglycemia disturbs neocortical lamination in some non-malformed offspring. Our results suggested that hyperglycemia altered the early-born neuron fate and the distribution of newborn neurons in deep layers by promoting the earlier differentiation of neural stem cells. Altered histone acetylation and its regulation on the transcription of proneural genes might be correlated to the disrupted differentiation of neural stem cells and altered distribution of newborn projection neurons in the neocortex. Our data raised the possibility that maternal hyperglycemia in pregnancy disturbs the laminar distribution of neocortical projection neurons in some non-malformed offspring via epigenetic regulation on neural stem cell differentiation and the birthdate of neocortical neurons.
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Affiliation(s)
- Shufang Ji
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Wenjuan Zhou
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Xian Li
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.,Foot and Ankle Surgery Center of Shandong University and Department of Hand and Foot Surgery, The Second Hospital of Shandong University, Jinan, Shandong, China
| | - Shangming Liu
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Fuwu Wang
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Xinyue Li
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Tiantian Zhao
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Guangyu Ji
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Jingyi Du
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Aijun Hao
- Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong Provincial Key Laboratory of Mental Disorders, Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
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24
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Li H, Zhang Y, Liu S, Li F, Wang B, Wang J, Cao L, Xia T, Yao Q, Chen H, Zhang Y, Zhu X, Li Y, Li G, Wang J, Li X, Ni S. Melatonin Enhances Proliferation and Modulates Differentiation of Neural Stem Cells Via Autophagy in Hyperglycemia. Stem Cells 2019; 37:504-515. [PMID: 30644149 DOI: 10.1002/stem.2968] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 11/07/2018] [Accepted: 12/11/2018] [Indexed: 12/19/2022]
Abstract
Dysfunction of neural stem cells (NSCs) has been linked to fetal neuropathy, one of the most devastating complications of gestational diabetes. Several studies have demonstrated that melatonin (Mel) exerted neuroprotective actions in various stresses. However, the role of autophagy and the involvement of Mel in NSCs in hyperglycemia (HG) have not yet been fully established. Here, we found that HG increased autophagy and autophagic flux of NSCs as evidenced by increasing LC3B II/I ratio, Beclin-1 expression, and autophagosomes. Moreover, Mel enhanced NSCs proliferation and self-renewal in HG with decreasing autophagy and activated mTOR signaling. Consistently, inhibition of autophagy by 3-Methyladenine (3-Ma) could assist Mel effects above, and induction of autophagy by Rapamycin (Rapa) could diminish Mel effects. Remarkably, HG induced premature differentiation of NSCs into neurons (Map2 positive cells) and astrocytes (GFAP positive cells). Furthermore, Mel diminished HG-induced premature differentiation and assisted NSCs in HG differentiation as that in normal condition. Coincidentally, inhibiting of NSCs autophagy by 3-Ma assisted Mel to modulate differentiation. However, increasing NSCs autophagy by Rapa disturbed the Mel effects and retarded NSCs differentiation. These findings suggested that Mel supplementation could contribute to mimicking normal NSCs proliferation and differentiation in fetal central nervous system by inhibiting autophagy in the context of gestational diabetes. Stem Cells 2019;37:504-515.
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Affiliation(s)
- Haoyuan Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Yanmin Zhang
- Brain Science Research Institute, Shandong University, Jinan, People's Republic of China.,Key Laboratory of the Ministry of Education for Experimental Teratology, Department of Histology and Embryology, Shandong University School of Basic Medical Sciences, Jinan, People's Republic of China
| | - Shangming Liu
- Key Laboratory of the Ministry of Education for Experimental Teratology, Department of Histology and Embryology, Shandong University School of Basic Medical Sciences, Jinan, People's Republic of China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, the State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Fengpeng Li
- Department of Neurosurgery, Yinan County People's Hospital, Linyi, People's Republic of China
| | - Benlin Wang
- Department of Neurosurgery, PLA No. 970 Hospital, Yantai, Shandong, People's Republic of China
| | - Jianjie Wang
- Shandong University School of Medicine, Jinan, People's Republic of China
| | - Lanfang Cao
- Department of Infection Management, The Second People's Hospital of Yunnan Province, Kunming, People's Republic of China
| | - Tongliang Xia
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Qingyu Yao
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing, People's Republic of China
| | - Haijun Chen
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Yulin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Xiaodong Zhu
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, People's Republic of China
| | - Yang Li
- Shandong University School of Medicine, Jinan, People's Republic of China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China.,Brain Science Research Institute, Shandong University, Jinan, People's Republic of China
| | - Jian Wang
- Brain Science Research Institute, Shandong University, Jinan, People's Republic of China.,KG Jebsen Brain Tumor Research Center, Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China.,Brain Science Research Institute, Shandong University, Jinan, People's Republic of China
| | - Shilei Ni
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, People's Republic of China.,Brain Science Research Institute, Shandong University, Jinan, People's Republic of China
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25
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Liu Y, Yan J, Sun C, Li G, Li S, Zhang L, Di C, Gan L, Wang Y, Zhou R, Si J, Zhang H. Ameliorating mitochondrial dysfunction restores carbon ion-induced cognitive deficits via co-activation of NRF2 and PINK1 signaling pathway. Redox Biol 2018; 17:143-157. [PMID: 29689442 PMCID: PMC6006734 DOI: 10.1016/j.redox.2018.04.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 12/17/2022] Open
Abstract
Carbon ion therapy is a promising modality in radiotherapy to treat tumors, however, a potential risk of induction of late normal tissue damage should still be investigated and protected. The aim of the present study was to explore the long-term cognitive deficits provoked by a high-linear energy transfer (high-LET) carbon ions in mice by targeting to hippocampus which plays a crucial role in memory and learning. Our data showed that, one month after 4 Gy carbon ion exposure, carbon ion irradiation conspicuously resulted in the impaired cognitive performance, neurodegeneration and neuronal cell death, as well as the reduced mitochondrial integrity, the disrupted activities of tricarboxylic acid cycle flux and electron transport chain, and the depressed antioxidant defense system, consequently leading to a decline of ATP production and persistent oxidative damage in the hippocampus region. Mechanistically, we demonstrated the disruptions of mitochondrial homeostasis and redox balance typically characterized by the disordered mitochondrial dynamics, mitophagy and glutathione redox couple, which is closely associated with the inhibitions of PINK1 and NRF2 signaling pathway as the key regulators of molecular responses in the context of neurotoxicity and neurodegenerative disorders. Most importantly, we found that administration with melatonin as a mitochondria-targeted antioxidant promoted the PINK1 accumulation on the mitochondrial membrane, and augmented the NRF2 accumulation and translocation. Moreover, melatonin pronouncedly enhanced the molecular interplay between NRF2 and PINK1. Furthermore, in the mouse hippocampal neuronal cells, overexpression of NRF2/PINK1 strikingly protected the hippocampal neurons from carbon ion-elicited toxic insults. Thus, these data suggest that alleviation of the sustained mitochondrial dysfunction and oxidative stress through co-modulation of NRF2 and PINK1 may be in charge of restoration of the cognitive impairments in a mouse model of high-LET carbon ion irradiation.
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Affiliation(s)
- Yang Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Jiawei Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Cao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Guo Li
- Lanzhou University, Lanzhou 730000, China
| | - Sirui Li
- Lanzhou University, Lanzhou 730000, China
| | - Luwei Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Cuixia Di
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Lu Gan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yupei Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Rong Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Jing Si
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China.
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26
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Ali T, Rehman SU, Shah FA, Kim MO. Acute dose of melatonin via Nrf2 dependently prevents acute ethanol-induced neurotoxicity in the developing rodent brain. J Neuroinflammation 2018; 15:119. [PMID: 29679979 PMCID: PMC5911370 DOI: 10.1186/s12974-018-1157-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/10/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Melatonin is a well-known potent endogenous antioxidant pharmacological agent with significant neuroprotective actions. Here in the current study, we explored the nuclear factor erythroid 2-related factor 2 (Nrf2) gene-dependent antioxidant mechanism underlying the neuroprotective effects of the acute melatonin against acute ethanol-induced elevated reactive oxygen species (ROS)-mediated neuroinflammation and neurodegeneration in the developing rodent brain. METHODS In vivo rat pups were co-treated with a single dose of acute ethanol (5 g/kg, subcutaneous (S.C.)) and a single dose of acute melatonin (20 mg/kg, intraperitoneal (I.P.)). Four hours after a single S.C. and I.P. injections, all of the rat pups were sacrificed for further biochemical (Western blotting, ROS- assay, LPO-assay, and immunohistochemical) analyses. In order to corroborate the in vivo results, we used the in vitro murine-hippocampal HT22 and microglial BV2 cells, which were subjected to knockdown with small interfering RNA (siRNA) of Nrf2 genes and exposed with melatonin (100 μM) and ethanol (100 mM) and proceed for further biochemical analyses. RESULTS Our biochemical, immunohistochemical, and immunofluorescence results demonstrate that acute melatonin significantly upregulated the master endogenous antioxidant Nrf2 and heme oxygenase-1, consequently reversing the acute ethanol-induced elevated ROS and oxidative stress in the developing rodent brain, and in the murine-hippocampal HT22 and microglial BV2 cells. In addition, acute melatonin subsequently reduced the activated MAPK-p-P38-JNK pathways and attenuated neuroinflammation by decreasing the expression of activated gliosis and downregulated the p-NF-K-B/p-IKKβ pathway and decreased the expression levels of other inflammatory markers in the developing rodent brain and BV2 cells. Of note, melatonin acted through the Nrf2-dependent mechanism to attenuate neuronal apoptosis in the postnatal rodent brain and HT22 cells. Immunohistofluorescence results also showed that melatonin prevented ethanol-induced neurodegeneration in the developing rodent brain. The in vitro results indicated that melatonin induced neuroprotection via Nrf2-dependent manner and reduced ethanol-induced neurotoxicity. CONCLUSIONS The pleiotropic and potent neuroprotective antioxidant characteristics of melatonin, together with our in vivo and in vitro findings, suppose that acute melatonin could be beneficial to prevent and combat the acute ethanol-induced neurotoxic effects, such as elevated ROS, neuroinflammation, and neurodegeneration in the developing rodent brain.
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Affiliation(s)
- Tahir Ali
- Division of Applied Life Science (BK 21), College of Natural Sciences, Gyeongsang National University, Jinju, 660-701, Republic of Korea
| | - Shafiq Ur Rehman
- Division of Applied Life Science (BK 21), College of Natural Sciences, Gyeongsang National University, Jinju, 660-701, Republic of Korea
| | - Fawad Ali Shah
- Department of Pharmacology, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Myeong Ok Kim
- Division of Applied Life Science (BK 21), College of Natural Sciences, Gyeongsang National University, Jinju, 660-701, Republic of Korea.
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27
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De Sousa RAL. Gestational diabetes is associated to the development of brain insulin resistance in the offspring. Int J Diabetes Dev Ctries 2018. [DOI: 10.1007/s13410-018-0618-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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28
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Effect of melatonin on neuronal differentiation requires CBP/p300-mediated acetylation of histone H3 lysine 14. Neuroscience 2017; 364:45-59. [DOI: 10.1016/j.neuroscience.2017.07.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 12/22/2022]
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29
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Hu W, Deng C, Ma Z, Wang D, Fan C, Li T, Di S, Gong B, Reiter RJ, Yang Y. Utilizing melatonin to combat bacterial infections and septic injury. Br J Pharmacol 2017; 174:754-768. [PMID: 28213968 PMCID: PMC5387000 DOI: 10.1111/bph.13751] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 02/07/2017] [Accepted: 02/13/2017] [Indexed: 12/11/2022] Open
Abstract
Melatonin, also known as N-acetyl-5-methoxytryptamine, is a ubiquitously acting molecule that is produced by the pineal gland and other organs of animals, including humans. As melatonin and its metabolites are potent antioxidants and free radical scavengers, they are protective against a variety of disorders. Moreover, multiple molecular targets of melatonin have been identified, and its actions are both receptor-mediated and receptor-independent. Recent studies have shown that melatonin may be useful in fighting against sepsis and septic injury due to its antioxidative and anti-inflammatory actions; the results generally indicate a promising therapeutic application for melatonin in the treatment of sepsis. To provide a comprehensive understanding regarding the protective effects of melatonin against septic injury, in the present review we have evaluated the published literature in which melatonin has been used to treat experimental and clinical sepsis. Firstly, we present the evidence from studies that have used melatonin to resist bacterial pathogens. Secondly, we illustrate the protective effect of melatonin against septic injury and discuss the possible mechanisms. Finally, the potential directions for future melatonin research against sepsis are summarized.
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Affiliation(s)
- Wei Hu
- Department of Thoracic and Cardiovascular SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
- Department of Biomedical EngineeringThe Fourth Military Medical UniversityXi'anChina
| | - Chao Deng
- Department of Cardiovascular Surgery, Xijing HospitalThe Fourth Military Medical UniversityXi'anChina
- Department of Thoracic Surgery, Tangdu HospitalThe Fourth Military Medical UniversityXi'anChina
| | - Zhiqiang Ma
- Department of Aerospace MedicineThe Fourth Military Medical UniversityXi'anChina
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Chongxi Fan
- Department of Aerospace MedicineThe Fourth Military Medical UniversityXi'anChina
| | - Tian Li
- Department of Biomedical EngineeringThe Fourth Military Medical UniversityXi'anChina
| | - Shouyin Di
- Department of Aerospace MedicineThe Fourth Military Medical UniversityXi'anChina
| | - Bing Gong
- Department of Thoracic and Cardiovascular SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Russel J Reiter
- Department of Cellular and Structural BiologyUT Health Science Center at San AntonioSan AntonioTXUSA
| | - Yang Yang
- Department of Thoracic and Cardiovascular SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
- Department of Biomedical EngineeringThe Fourth Military Medical UniversityXi'anChina
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30
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Yu X, Li Z, Zheng H, Ho J, Chan MTV, Wu WKK. Protective roles of melatonin in central nervous system diseases by regulation of neural stem cells. Cell Prolif 2016; 50. [PMID: 27943459 DOI: 10.1111/cpr.12323] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/07/2016] [Indexed: 12/23/2022] Open
Abstract
Neural stem cells (NSCs) are immature precursors of the central nervous system (CNS), with self-renewal and multipotential differentiation abilities. Their proliferation and differentiation are dynamically regulated by hormonal and local factors. Alteration in neurogenesis is associated with many neurological disorders. Increasing evidence suggests that modulation of NSCs can be a promising therapeutic approach for neural injury and neurodegenerative disorders. Melatonin, a pineal gland-derived hormone, regulates the neuroimmuno-endocrine axis and is functionally important to the circadian rhythm, tumour suppression and immunity. In the CNS, melatonin exerts neuroprotective effects in many diseases, such as Parkinson's disease, Alzheimer's disease and ischaemic brain injury. Emerging evidence suggests that it might also mediate such protective action by influencing proliferation and differentiation of NSCs. In this article, we review the current literature concerned with effects of melatonin on NSCs in different physiological and pathological conditions.
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Affiliation(s)
- Xin Yu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zheng Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Heyi Zheng
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jeffery Ho
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Matthew T V Chan
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - William Ka Kei Wu
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China.,State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
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31
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Zhou HL, Ding L, Mi T, Zheng K, Wu XF, Wang J, Liu MY, Zhang L, Zhang CT, Quan XQ. Values of hemodynamic variation in response to passive leg raising in predicting exercise capacity of heart failure with preserved ejection fraction. Medicine (Baltimore) 2016; 95:e5322. [PMID: 27858914 PMCID: PMC5591162 DOI: 10.1097/md.0000000000005322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 09/27/2016] [Accepted: 10/13/2016] [Indexed: 11/25/2022] Open
Abstract
In heart failure patients with preserved ejection fraction, their hemodynamic parameters usually change when they are from recumbent to passive leg raising. The authors designed this study to investigate the relationship between hemodynamic parameters measured by impedance cardiography (ICG) and 6-minute walk distance (6MWD) of heart failure with preserved ejection fraction (HFPEF). We recruited 49 subjects with HFPEF in the study, and all the subjects were separated into 2 groups: the patients whose hemodynamic parameters rose after passive leg raising were in group 1 (n = 26) and the patients whose hemodynamic parameters did not rise after passive leg raising were in group 2 (n = 23). Our study then compared the 6MWD, left ventricular ejection fraction, and plasma NT-pro-brain natriuretic peptide between the 2 groups. Group 1 had significantly longer 6MWD than group 2 (515.38 ± 24.97 vs 306.39 ± 20.20 m; P = 0.043). Hemodynamic parameters measured by ICG significantly correlated with 6MWD in both groups. Patients whose hemodynamic parameters rose in response to passive leg raising were more likely to have better exercise capacity. Hemodynamic variation in response to passive leg raising measured by ICG may be more sensitive in predicting exercise capacity of patients with HFPEF.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xiao-Qing Quan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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32
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Gao L, Zhao YC, Liang Y, Lin XH, Tan YJ, Wu DD, Li XZ, Ye BZ, Kong FQ, Sheng JZ, Huang HF. The impaired myocardial ischemic tolerance in adult offspring of diabetic pregnancy is restored by maternal melatonin treatment. J Pineal Res 2016; 61:340-52. [PMID: 27299979 DOI: 10.1111/jpi.12351] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/13/2016] [Indexed: 01/01/2023]
Abstract
Diabetic pregnancy, with ever increasing prevalence, adversely affects embryogenesis and increases vasculometabolic disorder risks in adult offspring. However, it remains poorly understood whether maternal diabetes increases the offspring's susceptibility to heart injuries in adulthood. In this study, we observed that cardiac function and structure were comparable between adult offspring born to diabetic mice and their counterparts born to nondiabetic mice at baseline. However, in response to myocardial ischemia/reperfusion (MIR), diabetic mother offspring exhibited augmented infarct size, cardiac dysfunction, and myocardial apoptosis compared with control, in association with exaggerated activation of mitochondria- and endoplasmic reticulum (ER) stress-mediated apoptosis pathways and oxidative stress. Molecular analysis showed that the impaired myocardial ischemic tolerance in diabetic mother offspring was mainly attributable to blunted cardiac insulin receptor substrate (IRS)-1/Akt signaling. Furthermore, the effect of maternal melatonin administration on offspring's response to MIR was determined, and the results indicated that melatonin treatment in diabetic dams during pregnancy significantly improved the tolerance to MIR injury in their offspring, via restoring cardiac IRS-1/Akt signaling. Taken together, these data suggest that maternal diabetes predisposes offspring to augmented MIR injury in adulthood, and maternal melatonin supplementation during diabetic pregnancy may hold promise for improving myocardial ischemic tolerance in the offspring.
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Affiliation(s)
- Ling Gao
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Chao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Liang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xian-Hua Lin
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ya-Jing Tan
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dan-Dan Wu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xin-Zhu Li
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bo-Zhi Ye
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Fan-Qi Kong
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jian-Zhong Sheng
- The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, China
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou, China
| | - He-Feng Huang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, China.
- Institute of Embryo-Fetal Original Adult Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Melatonin in Retinal Physiology and Pathology: The Case of Age-Related Macular Degeneration. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:6819736. [PMID: 27688828 PMCID: PMC5027321 DOI: 10.1155/2016/6819736] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/09/2016] [Indexed: 12/16/2022]
Abstract
Melatonin, an indoleamine, is synthesized mainly in the pineal gland in a circadian fashion, but it is produced in many other organs, including the retina, which seems to be especially important as the eye is a primary recipient of circadian signals. Melatonin displays strong antioxidative properties, which predispose it to play a protective role in many human pathologies associated with oxidative stress, including premature aging and degenerative disease. Therefore, melatonin may play a role in age-related macular degeneration (AMD), a disease affecting photoreceptors, and retinal pigment epithelium (RPE) with an established role of oxidative stress in its pathogenesis. Several studies have shown that melatonin could exert the protective effect against damage to RPE cells evoked by reactive oxygen species (ROS), but it has also been reported to increase ROS-induced damage to photoreceptors and RPE. Melatonin behaves like synthetic mitochondria-targeted antioxidants, which concentrate in mitochondria at relatively high levels; thus, melatonin may prevent mitochondrial damage in AMD. The retina contains telomerase, an enzyme implicated in maintaining the length of telomeres, and oxidative stress inhibits telomere synthesis, while melatonin overcomes this effect. These features support considering melatonin as a preventive and therapeutic agent in the treatment of AMD.
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Anderson G, Vaillancourt C, Maes M, Reiter RJ. Breast Feeding and Melatonin: Implications for Improving Perinatal Health. ACTA ACUST UNITED AC 2016. [DOI: 10.14302/issn.2644-0105.jbfb-16-1121] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The biological underpinnings that drive the plethora of breastfeeding benefits over formula-feeding is an area of intense research, given the cognitive and emotional benefits as well as the offsetting of many childhood- and adult-onset medical conditions that breast-feeding provides. In this article, we review the research on the role of melatonin in driving some of these breastfeeding benefits. Melatonin is a powerful antioxidant, anti-inflammatory and antinociceptive as well as optimizing mitochondrial function. Melatonin is produced by the placenta and, upon parturition, maternal melatonin is passed to the infant upon breastfeeding with higher levels in night-time breast milk. As such, some of the benefits of breastfeeding may be mediated by the higher levels of maternal circulating night-time melatonin, allowing for circadian and antioxidant effects, as well as promoting the immune and mitochondrial regulatory aspects of melatonin; these actions may positively modulate infant development. Herein, it is proposed that some of the benefits of breastfeeding may be mediated by melatonin's regulation of the infant's gut microbiota and immune responses. As such, melatonin is likely to contribute to the early developmental processes that affect the susceptibility to a range of adult onset conditions. Early research on animal models has shown promising results for the regulatory role of melatonin.
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Affiliation(s)
| | - Cathy Vaillancourt
- INRS-Armand-Frappier Institute and Center for Interdisciplinary Research on Well-Being, Health, Society and Environment (CINBIOSE), Laval, QC, Canada
| | - Michael Maes
- Deakin University, Department of Psychiatry, Geelong , Australia
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YiXin-Shu, a ShengMai-San-based traditional Chinese medicine formula, attenuates myocardial ischemia/reperfusion injury by suppressing mitochondrial mediated apoptosis and upregulating liver-X-receptor α. Sci Rep 2016; 6:23025. [PMID: 26964694 PMCID: PMC4786861 DOI: 10.1038/srep23025] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 02/25/2016] [Indexed: 12/14/2022] Open
Abstract
Positive evidence from clinical trials has fueled growing acceptance of traditional Chinese medicine (TCM) for the treatment of cardiac diseases; however, little is known about the underlying mechanisms. Here, we investigated the nature and underlying mechanisms of the effects of YiXin-Shu (YXS), an antioxidant-enriched TCM formula, on myocardial ischemia/reperfusion (MI/R) injury. YXS pretreatment significantly reduced infarct size and improved viable myocardium metabolism and cardiac function in hypercholesterolemic mice. Mechanistically, YXS attenuated myocardial apoptosis by inhibiting the mitochondrial mediated apoptosis pathway (as reflected by inhibition of mitochondrial swelling, cytochrome c release and caspase-9 activity, and normalization of Bcl-2 and Bax levels) without altering the death receptor and endoplasmic reticulum-stress death pathways. Moreover, YXS reduced oxidative/nitrative stress (as reflected by decreased superoxide and nitrotyrosine content and normalized pro- and anti-oxidant enzyme levels). Interestingly, YXS upregulated endogenous nuclear receptors including LXRα, PPARα, PPARβ and ERα, and in-vivo knockdown of cardiac-specific LXRα significantly blunted the cardio-protective effects of YXS. Collectively, these data show that YXS is effective in mitigating MI/R injury by suppressing mitochondrial mediated apoptosis and oxidative stress and by upregulating LXRα, thereby providing a rationale for future clinical trials and clinical applications.
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Zhao L, Liu H, Yue L, Zhang J, Li X, Wang B, Lin Y, Qu Y. Melatonin Attenuates Early Brain Injury via the Melatonin Receptor/Sirt1/NF-κB Signaling Pathway Following Subarachnoid Hemorrhage in Mice. Mol Neurobiol 2016; 54:1612-1621. [DOI: 10.1007/s12035-016-9776-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/02/2016] [Indexed: 12/25/2022]
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