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Rasia-Filho AA, Calcagnotto ME, von Bohlen Und Halbach O. Glial Cell Modulation of Dendritic Spine Structure and Synaptic Function. ADVANCES IN NEUROBIOLOGY 2023; 34:255-310. [PMID: 37962798 DOI: 10.1007/978-3-031-36159-3_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Glia comprise a heterogeneous group of cells involved in the structure and function of the central and peripheral nervous system. Glial cells are found from invertebrates to humans with morphological specializations related to the neural circuits in which they are embedded. Glial cells modulate neuronal functions, brain wiring and myelination, and information processing. For example, astrocytes send processes to the synaptic cleft, actively participate in the metabolism of neurotransmitters, and release gliotransmitters, whose multiple effects depend on the targeting cells. Human astrocytes are larger and more complex than their mice and rats counterparts. Astrocytes and microglia participate in the development and plasticity of neural circuits by modulating dendritic spines. Spines enhance neuronal connectivity, integrate most postsynaptic excitatory potentials, and balance the strength of each input. Not all central synapses are engulfed by astrocytic processes. When that relationship occurs, a different pattern for thin and large spines reflects an activity-dependent remodeling of motile astrocytic processes around presynaptic and postsynaptic elements. Microglia are equally relevant for synaptic processing, and both glial cells modulate the switch of neuroendocrine secretion and behavioral display needed for reproduction. In this chapter, we provide an overview of the structure, function, and plasticity of glial cells and relate them to synaptic maturation and modulation, also involving neurotrophic factors. Together, neurons and glia coordinate synaptic transmission in both normal and abnormal conditions. Neglected over decades, this exciting research field can unravel the complexity of species-specific neural cytoarchitecture as well as the dynamic region-specific functional interactions between diverse neurons and glial subtypes.
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Affiliation(s)
- Alberto A Rasia-Filho
- Department of Basic Sciences/Physiology and Graduate Program in Biosciences, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
- Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria Elisa Calcagnotto
- Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Graduate Program in Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Graduate Program in Psychiatry and Behavioral Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Gusmao DO, de Sousa ME, Tavares MR, Donato J. Increased GH Secretion and Body Growth in Mice Carrying Ablation of IGF-1 Receptor in GH-releasing Hormone Cells. Endocrinology 2022; 163:6696879. [PMID: 36099517 DOI: 10.1210/endocr/bqac151] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Indexed: 11/19/2022]
Abstract
Growth hormone (GH) secretion is controlled by short and long negative feedback loops. In this regard, both GH (short-loop feedback) and insulin-like growth factor 1 (IGF-1; long-loop feedback) can target somatotropic cells of the pituitary gland and neuroendocrine hypothalamic neurons to regulate the GH/IGF-1 axis. GH-releasing hormone (GHRH)-expressing neurons play a fundamental role in stimulating pituitary GH secretion. However, it is currently unknown whether IGF-1 action on GHRH-expressing cells is required for the control of the GH/IGF-1/growth axis. In the present study, we investigated the phenotype of male and female mice carrying ablation of IGF-1 receptor (IGF1R) exclusively in GHRH cells. After weaning, both male and female GHRHΔIGF1R mice exhibited increases in body weight, lean body mass, linear growth, and length of long bones (tibia, femur, humerus, and radius). In contrast, the percentage of body fat was similar between control and GHRHΔIGF1R mice. The higher body growth of GHRHΔIGF1R mice can be explained by increases in mean GH levels, GH pulse amplitude, and pulse frequency, calculated from 36 blood samples collected from each animal at 10-minute intervals. GHRHΔIGF1R mice also showed increased hypothalamic Ghrh mRNA levels, pituitary Gh mRNA expression, hepatic Igf1 expression, and serum IGF-1 levels compared with control animals. Furthermore, GHRHΔIGF1R mice displayed significant alterations in the sexually dimorphic hepatic gene expression profile, with a prevailing feminization in most genes analyzed. In conclusion, our findings indicate that GHRH neurons represent a key and necessary site for the long-loop negative feedback that controls the GH/IGF-1 axis and body growth.
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Affiliation(s)
- Daniela O Gusmao
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo, SP 05508-000, Brazil
| | - Maria E de Sousa
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo, SP 05508-000, Brazil
| | - Mariana R Tavares
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo, SP 05508-000, Brazil
| | - Jose Donato
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo, SP 05508-000, Brazil
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Saleh FL, Joshi AA, Tal A, Xu P, Hens JR, Wong SL, Flannery CA. Hyperinsulinemia induces early and dyssynchronous puberty in lean female mice. J Endocrinol 2022; 254:121-135. [PMID: 35904489 PMCID: PMC9837806 DOI: 10.1530/joe-21-0447] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/27/2022] [Indexed: 01/17/2023]
Abstract
Girls with obesity are at increased risk of early puberty. Obesity is associated with insulin resistance and hyperinsulinemia. We hypothesized that insulin plays a physiological role in pubertal transition, and super-imposed hyperinsulinemia due to childhood obesity promotes early initiation of puberty in girls. To isolate the effect of hyperinsulinemia from adiposity, we compared pre-pubertal and pubertal states in hyperinsulinemic, lean muscle (M)-insulin-like growth factor 1 receptor (IGF-1R)-lysine (K)-arginine (R) (MKR) mice to normoinsulinemic WT, with puberty onset defined by vaginal opening (VO). Our results show MKR had greater insulin resistance and higher insulin levels (P < 0.05) than WT despite lower body weight (P < 0.0001) and similar IGF-1 levels (P = NS). Serum luteinizing hormone (LH) levels were higher in hyperinsulinemic MKR (P = 0.005), and insulin stimulation induced an increase in LH levels in WT. VO was earlier in hyperinsulinemic MKR vs WT (P < 0.0001). When compared on the day of VO, kisspeptin expression was higher in hyperinsulinemic MKR vs WT (P < 0.05), and gonadotropin-releasing hormone and insulin receptor isoform expression was similar (P = NS). Despite accelerated VO, MKR had delayed, disordered ovarian follicle and mammary gland development. In conclusion, we found that hyperinsulinemia alone without adiposity triggers earlier puberty. In our study, hyperinsulinemia also promoted dyssynchrony between pubertal initiation and progression, urging future studies in girls with obesity to assess alterations in transition to adulthood.
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Affiliation(s)
- Farrah L Saleh
- Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
- Frank H. Netter School of Medicine, Quinnipiac University, North Haven, Connecticut, USA
| | - Aditi A Joshi
- Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Aya Tal
- Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Patricia Xu
- Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Julie R Hens
- Section of Endocrinology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Serena L Wong
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Clare A Flannery
- Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
- Section of Endocrinology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
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Yu H, Niu Y, Jia G, Liang Y, Chen B, Sun R, Wang M, Huang S, Zeng J, Lu J, Li L, Guo X, Yao P. Maternal diabetes-mediated RORA suppression in mice contributes to autism-like offspring through inhibition of aromatase. Commun Biol 2022; 5:51. [PMID: 35027651 PMCID: PMC8758718 DOI: 10.1038/s42003-022-03005-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/23/2021] [Indexed: 01/31/2023] Open
Abstract
Retinoic acid-related orphan receptor alpha (RORA) suppression is associated with autism spectrum disorder (ASD) development, although the mechanism remains unclear. In this study, we aim to investigate the potential effect and mechanisms of RORA suppression on autism-like behavior (ALB) through maternal diabetes-mediated mouse model. Our in vitro study in human neural progenitor cells shows that transient hyperglycemia induces persistent RORA suppression through oxidative stress-mediated epigenetic modifications and subsequent dissociation of octamer-binding transcription factor 3/4 from the RORA promoter, subsequently suppressing the expression of aromatase and superoxide dismutase 2. The in vivo mouse study shows that prenatal RORA deficiency in neuron-specific RORA null mice mimics maternal diabetes-mediated ALB; postnatal RORA expression in the amygdala ameliorates, while postnatal RORA knockdown mimics, maternal diabetes-mediated ALB in offspring. In addition, RORA mRNA levels in peripheral blood mononuclear cells decrease to 34.2% in ASD patients (n = 121) compared to the typically developing group (n = 118), and the related Receiver Operating Characteristic curve shows good sensitivity and specificity with a calculated 84.1% of Area Under the Curve for ASD diagnosis. We conclude that maternal diabetes contributes to ALB in offspring through suppression of RORA and aromatase, RORA expression in PBMC could be a potential marker for ASD screening. Hong Yu, Yanbin Niu, Guohua Jia et al. integrate in vitro, in vivo, and human experiments to examine a link between RORA expression on autism-like behavior. Their results suggest that maternal diabetes may contribute to autism-like behavior via RORA suppression.
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Affiliation(s)
- Hong Yu
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China
| | - Yanbin Niu
- Teachers College, Columbia University, New York, NY, 10027, USA
| | - Guohua Jia
- Hainan Women and Children's Medical Center, Haikou, 570206, P. R. China
| | - Yujie Liang
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, 518020, P. R. China
| | - Baolin Chen
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China
| | - Ruoyu Sun
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China
| | - Min Wang
- Hainan Women and Children's Medical Center, Haikou, 570206, P. R. China
| | - Saijun Huang
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China
| | - Jiaying Zeng
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China
| | - Jianpin Lu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, 518020, P. R. China
| | - Ling Li
- Hainan Women and Children's Medical Center, Haikou, 570206, P. R. China.
| | - Xiaoling Guo
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China.
| | - Paul Yao
- Department of Pediatrics, Foshan Maternity and Child Health Care Hospital, Foshan, 528041, P. R. China. .,Hainan Women and Children's Medical Center, Haikou, 570206, P. R. China.
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Santollo J, Collett JA, Edwards AA. The anti-dipsogenic and anti-natriorexigenic effects of estradiol, but not the anti-pressor effect, are lost in aged female rats. Physiol Rep 2021; 9:e14948. [PMID: 34288542 PMCID: PMC8290476 DOI: 10.14814/phy2.14948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 11/24/2022] Open
Abstract
Estradiol (E2) inhibits fluid intake in several species, which may help to defend fluid homeostasis by preventing excessive extracellular fluid volume. Although this phenomenon is well established using the rat model, it has only been studied directly in young adults. Because aging influences the neuronal sensitivity to E2 and the fluid intake effects of E2 are mediated in the brain, we tested the hypothesis that aging influences the fluid intake effects of E2 in female rats. To do so, we examined water and NaCl intake in addition to the pressor effect after central angiotensin II treatment in young (3-4 months), middle-aged (10-12 months), and old (16-18 months) ovariectomized rats treated with estradiol benzoate (EB). As expected, EB treatment reduced water and NaCl intake in young rats. EB treatment, however, did not reduce water intake in old rats, nor did it reduce NaCl intake in middle-aged or old rats. The ability of EB to reduce blood pressure was, in contrast, observed in all three age groups. Next, we also measured the gene expression of estrogen receptors (ERs) and the angiotensin type 1 receptor (AT1R) in the areas of the brain that control fluid balance. ERβ, G protein estrogen receptor (GPER), and AT1R were reduced in the paraventricular nucleus of the hypothalamus in middle-aged and old rats, compared to young rats. These results suggest the estrogenic control of fluid intake is modified by age. Older animals lost the fluid intake effects of E2, which correlated with decreased ER and AT1R expression in the hypothalamus.
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Affiliation(s)
| | - Jason A. Collett
- Department of BiologyUniversity of KentuckyLexingtonKYUSA
- Department of Anatomy, Cell Biology and PhysiologyIndiana University School of MedicineIndianapolisINUSA
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Liu J, Liang Y, Jiang X, Xu J, Sun Y, Wang Z, Lin L, Niu Y, Song S, Zhang H, Xue Z, Lu J, Yao P. Maternal Diabetes-Induced Suppression of Oxytocin Receptor Contributes to Social Deficits in Offspring. Front Neurosci 2021; 15:634781. [PMID: 33633538 PMCID: PMC7900564 DOI: 10.3389/fnins.2021.634781] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 01/18/2021] [Indexed: 01/15/2023] Open
Abstract
Autism spectrum disorders (ASD) are a group of neurodevelopmental disorders characterized by impaired skills in social interaction and communication in addition to restricted and repetitive behaviors. Many different factors may contribute to ASD development; in particular, oxytocin receptor (OXTR) deficiency has been reported to be associated with ASD, although the detailed mechanism has remained largely unknown. Epidemiological study has shown that maternal diabetes is associated with ASD development. In this study, we aim to investigate the potential role of OXTR on maternal diabetes-mediated social deficits in offspring. Our in vitro study of human neuron progenitor cells showed that hyperglycemia induces OXTR suppression and that this suppression remains during subsequent normoglycemia. Further investigation showed that OXTR suppression is due to hyperglycemia-induced persistent oxidative stress and epigenetic methylation in addition to the subsequent dissociation of estrogen receptor β (ERβ) from the OXTR promoter. Furthermore, our in vivo mouse study showed that maternal diabetes induces OXTR suppression; prenatal OXTR deficiency mimics and potentiates maternal diabetes-mediated anxiety-like behaviors, while there is less of an effect on autism-like behaviors. Additionally, postnatal infusion of OXTR partly, while infusion of ERβ completely, reverses maternal diabetes-induced social deficits. We conclude that OXTR may be an important factor for ASD development and that maternal diabetes-induced suppression of oxytocin receptor contributes to social deficits in offspring.
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Affiliation(s)
- Jianbo Liu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Yujie Liang
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Xing Jiang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Jianchang Xu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Yumeng Sun
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Zichen Wang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Ling Lin
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Yanbin Niu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Shiqi Song
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Huawei Zhang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Zhenpeng Xue
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Jianping Lu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
| | - Paul Yao
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen Mental Health Center, Shenzhen, China
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7
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Xiang D, Lu J, Wei C, Cai X, Wang Y, Liang Y, Xu M, Wang Z, Liu M, Wang M, Liang X, Li L, Yao P. Berberine Ameliorates Prenatal Dihydrotestosterone Exposure-Induced Autism-Like Behavior by Suppression of Androgen Receptor. Front Cell Neurosci 2020; 14:87. [PMID: 32327976 PMCID: PMC7161090 DOI: 10.3389/fncel.2020.00087] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/23/2020] [Indexed: 01/03/2023] Open
Abstract
Many epidemiology studies have shown that maternal polycystic ovary syndrome (PCOS) results in a greater risk of autism spectrum disorders (ASD) development, although the detailed mechanism remains unclear. In this study, we aimed to investigate the potential mechanism and provide a possible treatment for PCOS-mediated ASD through three experiments: Experiment 1: real-time PCR and western blots were employed to measure gene expression in human neurons, and the luciferase reporter assay and chromatin immunoprecipitation (ChIP) was used to map the responsive elements on related gene promoters. Experiment 2: pregnant dams were prenatally exposed to dihydrotestosterone (DHT), androgen receptor (AR) knockdown (shAR) in the amygdala, or berberine (BBR), and the subsequent male offspring were used for autism-like behavior (ALB) assay followed by biomedical analysis, including gene expression, oxidative stress, and mitochondrial function. Experiment 3: the male offspring from prenatal DHT exposed dams were postnatally treated by either shAR or BBR, and the offspring were used for ALB assay followed by biomedical analysis. Our findings showed that DHT treatment suppresses the expression of estrogen receptor β (ERβ) and superoxide dismutase 2 (SOD2) through AR-mediated hypermethylation on the ERβ promoter, and BBR treatment suppresses AR expression through hypermethylation on the AR promoter. Prenatal DHT treatment induces ERβ suppression, oxidative stress and mitochondria dysfunction in the amygdala with subsequent ALB behavior in male offspring, and AR knockdown partly diminishes this effect. Furthermore, both prenatal and postnatal treatment of BBR partly restores prenatal DHT exposure-mediated ALB. In conclusion, DHT suppresses ERβ expression through the AR signaling pathway by hypermethylation on the ERβ promoter, and BBR restores this effect through AR suppression. Prenatal DHT exposure induces ALB in offspring through AR-mediated ERβ suppression, and both prenatal and postnatal treatment of BBR ameliorates this effect. We conclude that BBR ameliorates prenatal DHT exposure-induced ALB through AR suppression, this study may help elucidate the potential mechanism and identify a potential treatment through using BBR for PCOS-mediated ASD.
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Affiliation(s)
- Dongfang Xiang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianping Lu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China
| | - Chongxia Wei
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Xiaofan Cai
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Yongxia Wang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yujie Liang
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China
| | - Mingtao Xu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zichen Wang
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China
| | - Min Liu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Min Wang
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Xuefang Liang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ling Li
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Paul Yao
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China.,Hainan Maternal and Child Health Hospital, Haikou, China
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Maternal diabetes induces autism-like behavior by hyperglycemia-mediated persistent oxidative stress and suppression of superoxide dismutase 2. Proc Natl Acad Sci U S A 2019; 116:23743-23752. [PMID: 31685635 PMCID: PMC6876200 DOI: 10.1073/pnas.1912625116] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Hyperglycemia induces persistent oxidative stress and superoxide dismutase 2 (SOD2) suppression in neurons. SOD2 suppression is caused by oxidative stress-mediated histone methylation and subsequent dissociation of Egr1 on the SOD2 promoter. Maternal diabetes induces autism-like behavior in offspring with SOD2 suppression in the amygdala in rats, while SOD2 overexpression in the amygdala ameliorates autism-like behavior. Postnatal treatment of the blood–brain barrier-permeable antioxidant resveratrol partly restores this effect. This study describes a potential mechanism for maternal diabetes-induced autism-like behavior in offspring. Epidemiological studies show that maternal diabetes is associated with an increased risk of autism spectrum disorders (ASDs), although the detailed mechanisms remain unclear. The present study aims to investigate the potential effect of maternal diabetes on autism-like behavior in offspring. The results of in vitro study showed that transient hyperglycemia induces persistent reactive oxygen species (ROS) generation with suppressed superoxide dismutase 2 (SOD2) expression. Additionally, we found that SOD2 suppression is due to oxidative stress-mediated histone methylation and the subsequent dissociation of early growth response 1 (Egr1) on the SOD2 promoter. Furthermore, in vivo rat experiments showed that maternal diabetes induces SOD2 suppression in the amygdala, resulting in autism-like behavior in offspring. SOD2 overexpression restores, while SOD2 knockdown mimics, this effect, indicating that oxidative stress and SOD2 expression play important roles in maternal diabetes-induced autism-like behavior in offspring, while prenatal and postnatal treatment using antioxidants permeable to the blood–brain barrier partly ameliorated this effect. We conclude that maternal diabetes induces autism-like behavior through hyperglycemia-mediated persistent oxidative stress and SOD2 suppression. Here we report a potential mechanism for maternal diabetes-induced ASD.
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Hill JW, Elias CF. Neuroanatomical Framework of the Metabolic Control of Reproduction. Physiol Rev 2019; 98:2349-2380. [PMID: 30109817 DOI: 10.1152/physrev.00033.2017] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
A minimum amount of energy is required for basic physiological processes, such as protein biosynthesis, thermoregulation, locomotion, cardiovascular function, and digestion. However, for reproductive function and survival of the species, extra energy stores are necessary. Production of sex hormones and gametes, pubertal development, pregnancy, lactation, and parental care all require energy reserves. Thus the physiological systems that control energy homeostasis and reproductive function coevolved in mammals to support both individual health and species subsistence. In this review, we aim to gather scientific knowledge produced by laboratories around the world on the role of the brain in integrating metabolism and reproduction. We describe essential neuronal networks, highlighting key nodes and potential downstream targets. Novel animal models and genetic tools have produced substantial advances, but critical gaps remain. In times of soaring worldwide obesity and metabolic dysfunction, understanding the mechanisms by which metabolic stress alters reproductive physiology has become crucial for human health.
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Affiliation(s)
- Jennifer W Hill
- Center for Diabetes and Endocrine Research, Departments of Physiology and Pharmacology and of Obstetrics and Gynecology, University of Toledo College of Medicine , Toledo, Ohio ; and Departments of Molecular and Integrative Physiology and of Obstetrics and Gynecology, University of Michigan , Ann Arbor, Michigan
| | - Carol F Elias
- Center for Diabetes and Endocrine Research, Departments of Physiology and Pharmacology and of Obstetrics and Gynecology, University of Toledo College of Medicine , Toledo, Ohio ; and Departments of Molecular and Integrative Physiology and of Obstetrics and Gynecology, University of Michigan , Ann Arbor, Michigan
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Zhou X, Li M, Xiao M, Ruan Q, Chu Z, Ye Z, Zhong L, Zhang H, Huang X, Xie W, Li L, Yao P. ERβ Accelerates Diabetic Wound Healing by Ameliorating Hyperglycemia-Induced Persistent Oxidative Stress. Front Endocrinol (Lausanne) 2019; 10:499. [PMID: 31396159 PMCID: PMC6667639 DOI: 10.3389/fendo.2019.00499] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 07/09/2019] [Indexed: 12/15/2022] Open
Abstract
Delayed wound healing in diabetic patients is a serious diabetic complication, resulting in major health problems as well as high mortality and disability. The detailed mechanism still needs to be fully understood. In this study, we aim to investigate potential mechanisms and explore an efficient strategy for clinical treatment of diabetic wound healing. Human umbilical endothelial cells were exposed to hyperglycemia for 4 days, then switched to normoglycemia for an additional 4 days. The cells were harvested for the analysis of reactive oxygen species (ROS) generation, gene expression and VEGF signaling pathway. Furthermore, the diabetic wound model was established in rats for the evaluation of wound healing rates under the treatment of either ERβ agonist/antagonist or SOD mimetic MnTBAP. Our results show that transient hyperglycemia exposure results in persistent ROS overgeneration after the switch to normoglycemia, along with suppressed expression of ERβ, SOD2, and the VEGF signaling pathway. Either ERβ expression or activation diminishes ROS generation. In vivo experiments with diabetic rats show that ERβ activation or SOD mimetic MnTBAP diminishes ROS generation in tissues and accelerates diabetic wound healing. Transient hyperglycemia exposure induces ROS generation and suppresses ERβ expression, subsequently resulting in SOD2 suppression with additional elevated ROS generation. This forms a positive-feed forward loop for ROS generation with persistent oxidative stress. ERβ expression or activation breaks this loop and ameliorates this effect, thereby accelerating diabetic wound healing. We conclude that ERβ accelerates diabetic wound healing by ameliorating hyperglycemia-induced persistent oxidative stress. This provides a new strategy for clinical treatment of diabetic wound healing based on ERβ activation.
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Affiliation(s)
- Xueqing Zhou
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Min Li
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Meifang Xiao
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Qiongfang Ruan
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Zhigang Chu
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Ziqing Ye
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Liyan Zhong
- Hainan Maternal and Child Health Hospital, Haikou, China
| | - Haimou Zhang
- State Key Lab of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Xiaodong Huang
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Weiguo Xie
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
- *Correspondence: Weiguo Xie
| | - Ling Li
- Hainan Maternal and Child Health Hospital, Haikou, China
- Ling Li
| | - Paul Yao
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
- Hainan Maternal and Child Health Hospital, Haikou, China
- Paul Yao
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11
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Wang M, Zhang Y, Lan D, Hill JW. The Efficacy of GnRHa Alone or in Combination with rhGH for the Treatment of Chinese Children with Central Precocious Puberty. Sci Rep 2016; 6:24259. [PMID: 27072597 PMCID: PMC4829831 DOI: 10.1038/srep24259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/23/2016] [Indexed: 11/19/2022] Open
Abstract
The addition of recombinant human growth hormone (rhGH) to GnRH agonist (GnRHa) to treat central precocious puberty (CPP) is controversial. We systemically reviewed and evaluated the efficacy and safety of the rhGH and GnRHa adjunctive therapy in Chinese children with CPP and assessed the influence of age and therapy duration on the efficacy of the combined treatment. A total of 464 patients were included from 14 studies. Compared with baseline, administration of GnRHa plus rhGH led to a significant increase in height, predicted adult height (PAH) and height standard deviation for bone age (HtSDS-BA), corresponding to a weighted mean difference (WMD) (95%CI) of 9.06 cm (6.41, 11.70), 6.5 cm (4.47, 8.52), and 0.86 (0.58, 1.14) respectively. Subgroup analysis showed the combined therapy had increased efficacy in subjects with initial treatment age younger than 10 years old or with treatment lasting over 12 months. Compared with GnRHa alone treatment, the combined treatment led to a significant increase in height, PAH and HtSDS-BA, corresponding to a WMD (95% CI) of 3.56 cm (2.54, 4.57), 3.76 cm (3.19, 4.34) and 0.56 (0.43, 0.69). The combined treatment exhibited no safety concerns. Our findings may aid clinicians in making treatment decisions for children with CPP.
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Affiliation(s)
- Mengjie Wang
- Center for Diabetes and Endocrine Research, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614
| | - Youjie Zhang
- Center for Hypertension and Personalized Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614
| | - Dan Lan
- Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Jennifer W Hill
- Center for Diabetes and Endocrine Research, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614.,Department of Obstetrics-Gynecology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, 43614
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12
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Nicholas C, Davis J, Fisher T, Segal T, Petti M, Sun Y, Wolfe A, Neal-Perry G. Maternal Vitamin D Deficiency Programs Reproductive Dysfunction in Female Mice Offspring Through Adverse Effects on the Neuroendocrine Axis. Endocrinology 2016; 157:1535-45. [PMID: 26741195 PMCID: PMC5393357 DOI: 10.1210/en.2015-1638] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Vitamin D (VitD) deficiency affects more than 1 billion people worldwide with a higher prevalence in reproductive-aged women and children. The physiological effects of maternal VitD deficiency on the reproductive health of the offspring has not been studied. To determine whether maternal VitD deficiency affects reproductive physiology in female offspring, we monitored the reproductive physiology of C57BL/6J female offspring exposed to diet-induced maternal VitD deficiency at three specific developmental stages: 1) in utero, 2) preweaning, or 3) in utero and preweaning. We hypothesized that exposure to maternal VitD deficiency disrupts reproductive function in exposed female offspring. To test this hypothesis, we assessed vaginal opening and cytology and ovary and pituitary function as well as gonadotropin and gonadal steroid levels in female offspring. The in utero, preweaning, and in utero and preweaning VitD deficiency did not affect puberty. However, all female mice exposed to maternal VitD deficiency developed prolonged and irregular estrous cycles characterized by oligoovulation and extended periods of diestrus. Despite similar gonadal steroid levels and GnRH neuron density, females exposed to maternal VitD deficiency released less LH on the evening of proestrus. When compared with control female offspring, there was no significant difference in the ability of females exposed to maternal VitD deficiency to respond robustly to exogenous GnRH peptide or controlled ovarian hyperstimulation. These findings suggest that maternal VitD deficiency programs reproductive dysfunction in adult female offspring through adverse effects on hypothalamic function.
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Affiliation(s)
- Cari Nicholas
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Joseph Davis
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Thomas Fisher
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Thalia Segal
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Marilena Petti
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Yan Sun
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Andrew Wolfe
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
| | - Genevieve Neal-Perry
- Department of Developmental and Molecular Biology (C.N.), Albert Einstein College of Medicine, and Department of Obstetrics and Gynecology (M.P.), Montefiore Medical Center, Bronx, New York 10461; Medical College of Wisconsin (J.D.), Milwaukee, Wisconsin 53226; Seattle Reproductive Medicine (T.F.), Seattle, Washington 98109; Department of Reproductive Endocrinology and Infertility (T.S.), University Hospitals Case Medical Center University Hospitals Ahuja Medical Center, Beachwood, Ohio 44106; Department of Pediatrics and Physiology (A.W.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; and Department of Obstetrics and Gynecology (Y.S., G.N.-P.), University of Washington, Seattle, Washington 98195-6460
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Neonatal vaccination with bacillus Calmette-Guérin and hepatitis B vaccines modulates hippocampal synaptic plasticity in rats. J Neuroimmunol 2015; 288:1-12. [PMID: 26531688 DOI: 10.1016/j.jneuroim.2015.08.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 08/08/2015] [Accepted: 08/19/2015] [Indexed: 11/21/2022]
Abstract
Immune activation can exert multiple effects on synaptic transmission. Our study demonstrates the influence of neonatal vaccination on hippocampal synaptic plasticity in rats under normal physiological conditions. The results revealed that neonatal BCG vaccination enhanced synaptic plasticity. In contrast, HBV hampered it. Furthermore, we found that the cytokine balance shifted in favour of the T helper type 1/T helper type 2 immune response in BCG/HBV-vaccinated rats in the periphery. The peripheral IFN-γ:IL-4 ratio was positively correlated with BDNF and IGF-1 in the hippocampus. BCG raised IFN-γ, IL-4, BDNF and IGF-1 and reduced IL-1β, IL-6, and TNF-α in the hippocampus, whereas, HBV triggered the opposite effects.
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