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Gao M(M, Brown MA, Neff D, Crowell SE, Conradt E. Prenatal paternal stress predicts infant parasympathetic functioning above and beyond maternal prenatal stress. J Reprod Infant Psychol 2022; 40:563-576. [PMID: 34176368 PMCID: PMC8710180 DOI: 10.1080/02646838.2021.1941822] [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] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 06/02/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Paternal stress is often assessed by maternal report and is posited to influence infant development indirectly by contributing to a mother's stress and experiences during pregnancy. Far less is known about how direct effects of prenatal paternal stress, as described by fathers themselves, are related to an infant's physiological functioning. We assessed fathers' own experiences of stress and examined its direct impact on infant respiratory sinus arrhythmia (RSA), a biological index of self-regulation, at seven-month postpartum. METHOD During the third trimester of pregnancy, the UCLA Life Stress Interview was conducted to assess chronic stress in mothers and fathers (N = 90). Infant baseline RSA and RSA reactivity in response to the Still-Face paradigm were assessed at seven-month postpartum. RESULTS Infants of fathers with high prenatal stress showed lower baseline RSA, possibly reflective of poor infant psychophysiological regulation. The predictive role of paternal stress remained significant after controlling for maternal stress. CONCLUSIONS Our findings provide emerging empirical evidence to support the influence of prenatal paternal stress on infant RSA, highlighting the important role of fathers for child development.
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Affiliation(s)
| | | | - Dylan Neff
- University of Utah; Department of Psychology
| | - Sheila E. Crowell
- University of Utah; Department of Psychology
- Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
- Department of OB/GYN, University of Utah, Salt Lake City, UT, USA
| | - Elisabeth Conradt
- University of Utah; Department of Psychology
- Department of OB/GYN, University of Utah, Salt Lake City, UT, USA
- Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
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2
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Avalos MP, Guzman AS, Garcia-Keller C, Mongi-Bragato B, Esparza MA, Rigoni D, Sanchez MA, Calfa GD, Bollati FA, Cancela LM. Impairment of glutamate homeostasis in the nucleus accumbens core underpins cross-sensitization to cocaine following chronic restraint stress. Front Physiol 2022; 13:896268. [PMID: 36091376 PMCID: PMC9462460 DOI: 10.3389/fphys.2022.896268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
Abstract
Though the facilitating influence of stress on drug abuse is well documented, the mechanisms underlying this interaction have yet to be fully elucidated. The present study explores the neurobiological mechanisms underpinning the sensitized response to the psychomotor-stimulating effects of cocaine following chronic restraint stress (CRS), emphasizing the differential contribution of both subcompartments of the nucleus accumbens (NA), the core (NAcore) and shell (NAshell), to this phenomenon. Adult male Wistar rats were restrained for 2 h/day for 7 days and, 2 weeks after the last stress exposure (day 21), all animals were randomly assigned to behavioral, biochemical or neurochemical tests. Our results demonstrated that the enduring CRS-induced increase in psychostimulant response to cocaine was paralleled by an increase of extracellular dopamine levels in the NAcore, but not the NAshell, greater than that observed in the non-stress group. Furthermore, we found that CRS induced an impairment of glutamate homeostasis in the NAcore, but not the NAshell. Its hallmarks were increased basal extracellular glutamate concentrations driven by a CRS-induced downregulation of GLT-1, blunted glutamate levels in response to cocaine and postsynaptic structural remodeling in pre-stressed animals. In addition, ceftriaxone, a known GLT-1 enhancer, prevented the CRS-induced GLT-1 downregulation, increased basal extracellular glutamate concentrations and changes in structural plasticity in the NAcore as well as behavioral cross-sensitization to cocaine, emphasizing the biological importance of GLT-1 in the comorbidity between chronic stress exposure and drug abuse. A future perspective concerning the paramount relevance of the stress-induced disruption of glutamate homeostasis as a vulnerability factor to the development of stress and substance use disorders during early life or adulthood of descendants is provided.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Flavia A. Bollati
- Departamento de Farmacología Otto Orsingher, Instituto de Farmacología Experimental de Córdoba (IFEC-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Liliana M. Cancela
- Departamento de Farmacología Otto Orsingher, Instituto de Farmacología Experimental de Córdoba (IFEC-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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3
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Liu L, Wang D, Li X, Adetula AA, Khan A, Zhang B, Liu H, Yu Y, Chu Q. Long-lasting effects of lipopolysaccharide on the reproduction and splenic transcriptome of hens and their offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 237:113527. [PMID: 35453024 DOI: 10.1016/j.ecoenv.2022.113527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/23/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Lipopolysaccharide (LPS) is ubiquitous in the environment and is released after the death of gram-negative bacteria, which may be related to inflammation and immunosuppression. However, its impact on the reproduction of animals and their offspring, especially the underlying mechanism need further elucidation. Here, we used laying hens as a model organism to investigate the effects of maternal exposure to LPS (LPS maternal stimulation) on animal and their offspring's immunity and reproductive performance, as well as the regulatory role of the transcriptome. We found that the LPS maternal stimulation could reduce the egg-laying rate of hens and their offspring, especially during the early and late laying stages. The transcriptome study of the spleen in F0, F1 and F2 generations showed that the maternal stimulation of the LPS affects the patterns of gene expression in laying hens, and this change has a long-lasting effect. Further analysis of DEGs and their enrichment pathways found that the LPS maternal stimulation mainly affects the reproduction and immunity of laying hens and their offspring. The DEGs such as AVD, HPS5, CATHL2, S100A12, EXFABP, RSFR, LY86, PKD4, XCL1, FOS, TREM2 and MST1 may play an essential role in the regulation of the immunity and egg-laying rate of hens. Furthermore, the MMR1L3, C3, F13A1, LY86 and GDPD2 genes with heritable effects are highly correlated with the egg-laying rate, may have an important reference value for further research. Our study reveals the profound implications of LPS exposure on immunity and reproduction of offspring, elaborating the impact of immune alteration on the egg-laying rate, emphasizing the regulatory role of intergenerational transmission of the transcriptome, implying that the environment parents being exposed to has an important impact on offspring.
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Affiliation(s)
- Lei Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Di Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xingzheng Li
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Adeyinka Abiola Adetula
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Adnan Khan
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Bing Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100094, China
| | - Huagui Liu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100094, China
| | - Ying Yu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Qin Chu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100094, China.
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4
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El-Sayed A, Aleya L, Kamel M. The link among microbiota, epigenetics, and disease development. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:28926-28964. [PMID: 33860421 DOI: 10.1007/s11356-021-13862-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The microbiome is a community of various microorganisms that inhabit or live on the skin of humans/animals, sharing the body space with their hosts. It is a sort of complex ecosystem of trillions of commensals, symbiotic, and pathogenic microorganisms, including trillions of bacteria, archaea, protozoa, fungi, and viruses. The microbiota plays a role in the health and disease status of the host. Their number, species dominance, and viability are dynamic. Their long-term disturbance is usually accompanied by serious diseases such as metabolic disorders, cardiovascular diseases, or even cancer. While epigenetics is a term that refers to different stimuli that induce modifications in gene expression patterns without structural changes in the inherited DNA sequence, these changes can be reversible or even persist for several generations. Epigenetics can be described as cell memory that stores experience against internal and external factors. Results from multiple institutions have contributed to the role and close interaction of both microbiota and epigenetics in disease induction. Understanding the mechanisms of both players enables a better understanding of disease induction and development and also opens the horizon to revolutionary therapeutic approaches. The present review illustrates the roles of diet, microbiome, and epigenetics in the induction of several chronic diseases. In addition, it discusses the application of epigenetic data to develop diagnostic biomarkers and therapeutics and evaluate their safety for patients. Understanding the interaction among all these elements enables the development of innovative preventive/therapeutic approaches for disease control.
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Affiliation(s)
- Amr El-Sayed
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Lotfi Aleya
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon Cedex, France
| | - Mohamed Kamel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
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5
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Keyhan S, Burke E, Schrott R, Huang Z, Grenier C, Price T, Raburn D, Corcoran DL, Soubry A, Hoyo C, Murphy SK. Male obesity impacts DNA methylation reprogramming in sperm. Clin Epigenetics 2021; 13:17. [PMID: 33494820 PMCID: PMC7831195 DOI: 10.1186/s13148-020-00997-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/21/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Male obesity has profound effects on morbidity and mortality, but relatively little is known about the impact of obesity on gametes and the potential for adverse effects of male obesity to be passed to the next generation. DNA methylation contributes to gene regulation and is erased and re-established during gametogenesis. Throughout post-pubertal spermatogenesis, there are continual needs to both maintain established methylation and complete DNA methylation programming, even during epididymal maturation. This dynamic epigenetic landscape may confer increased vulnerability to environmental influences, including the obesogenic environment, that could disrupt reprogramming fidelity. Here we conducted an exploratory analysis that showed that overweight/obesity (n = 20) is associated with differences in mature spermatozoa DNA methylation profiles relative to controls with normal BMI (n = 47). RESULTS We identified 3264 CpG sites in human sperm that are significantly associated with BMI (p < 0.05) using Infinium HumanMethylation450 BeadChips. These CpG sites were significantly overrepresented among genes involved in transcriptional regulation and misregulation in cancer, nervous system development, and stem cell pluripotency. Analysis of individual sperm using bisulfite sequencing of cloned alleles revealed that the methylation differences are present in a subset of sperm rather than being randomly distributed across all sperm. CONCLUSIONS Male obesity is associated with altered sperm DNA methylation profiles that appear to affect reprogramming fidelity in a subset of sperm, suggestive of an influence on the spermatogonia. Further work is required to determine the potential heritability of these DNA methylation alterations. If heritable, these changes have the potential to impede normal development.
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Affiliation(s)
- Sanaz Keyhan
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27713, USA
| | - Emily Burke
- Department of Biostatistics, Duke University, Durham, 27710, USA
| | - Rose Schrott
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, 501 W. Main Street, Suite 510, The Chestefield Building, PO Box 90534, Durham, NC, 27701, USA.,Duke University Integrated Toxicology and Environmental Health Program, The Nicholas School of the Environment, Duke University, Durham, NC, 27708, USA
| | - Zhiqing Huang
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, 501 W. Main Street, Suite 510, The Chestefield Building, PO Box 90534, Durham, NC, 27701, USA
| | - Carole Grenier
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, 501 W. Main Street, Suite 510, The Chestefield Building, PO Box 90534, Durham, NC, 27701, USA
| | - Thomas Price
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27713, USA
| | - Doug Raburn
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, 27713, USA
| | - David L Corcoran
- Center for Genomics and Computational Biology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Adelheid Soubry
- Epidemiology Research Group, Department of Public Health and Primary Care, Faculty of Medicine, KU Leuven University, 2000, Leuven, Belgium
| | - Catherine Hoyo
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, 27633, USA
| | - Susan K Murphy
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University Medical Center, 501 W. Main Street, Suite 510, The Chestefield Building, PO Box 90534, Durham, NC, 27701, USA. .,Duke University Integrated Toxicology and Environmental Health Program, The Nicholas School of the Environment, Duke University, Durham, NC, 27708, USA.
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6
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Athira KV, Bandopadhyay S, Samudrala PK, Naidu VGM, Lahkar M, Chakravarty S. An Overview of the Heterogeneity of Major Depressive Disorder: Current Knowledge and Future Prospective. Curr Neuropharmacol 2020; 18:168-187. [PMID: 31573890 PMCID: PMC7327947 DOI: 10.2174/1570159x17666191001142934] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 08/05/2019] [Accepted: 09/27/2019] [Indexed: 02/08/2023] Open
Abstract
Major depressive disorder (MDD) is estimated to impose maximum debilitating effects on the society by 2030, with its critical effects on health, functioning, quality of life and concomitant high levels of morbidity and mortality. Yet, the disease is inadequately understood, diagnosed and treated. Moreover, with the recent drastic rise in the pace of life, stress has materialized as one of the most potent environmental factors for depression. In this scenario, it is important to understand the modern pathogenetic hypotheses and mechanisms, and possibly try to shift from the traditional approaches in depression therapy. These include the elaboration of pathophysiological changes in heterogeneous systems such as genetic, epigenetic, serotonergic, noradrenergic, gamma-aminobutyric acid, glutamatergic and endocannabinoid systems, neurotrophic factors, HPA axis, immune system as well as cellular stress mechanisms. These components interact with each other in a complex matrix and further elucidation of their mechanism and cascade pathways are needed. This might aid in the identification of MDD subtypes as well as the development of sophisticated biomarkers. Further, characterization might also aid in developing multitargeted therapies that hold much promise as compared to the conventional monoamine based treatment. New candidate pharmacons, refined psychotherapeutic modalities, advanced neuro-surgical and imaging techniques as well as the implementation of pharmacokinetic, pharmacogenetic prescribing guidelines constitute the emerging expanses of MDD treatment.
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Affiliation(s)
- Kaipuzha Venu Athira
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, 781125, Assam, India.,Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad 500007, India.,Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - Sikta Bandopadhyay
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad 500007, India
| | - Pavan Kumar Samudrala
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, 781125, Assam, India
| | - V G M Naidu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, 781125, Assam, India
| | - Mangala Lahkar
- Department of Pharmacology, Gauhati Medical College, Guwahati, 781032, Assam, India
| | - Sumana Chakravarty
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad 500007, India
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7
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Gustafsson HC, Sullivan EL, Battison EAJ, Holton KF, Graham AM, Karalunas SL, Fair DA, Loftis JM, Nigg JT. Evaluation of maternal inflammation as a marker of future offspring ADHD symptoms: A prospective investigation. Brain Behav Immun 2020; 89:350-356. [PMID: 32707260 PMCID: PMC7703804 DOI: 10.1016/j.bbi.2020.07.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/02/2020] [Accepted: 07/15/2020] [Indexed: 12/17/2022] Open
Abstract
Early life predictors of attention-deficit/hyperactivity disorder (ADHD) are critically needed; they could inform etiological theory and may help identify new prevention targets. The current study examined prospectively whether maternal cytokine levels during pregnancy predict offspring ADHD symptoms at age 4-6 years. Secondarily, we evaluated maternal cytokine levels as a possible common pathway through which prenatal risks exert influence on child ADHD. Data came from a sample of women recruited during the 2nd trimester of pregnancy (N = 62) and followed postnatally until children were 4-6 years old. Maternal inflammation was assessed using 3rd trimester plasma concentrations of three indicators of nuclear factor kappa B signaling: interleukin-6, tumor necrosis factor-alpha, and monocyte chemoattractant protein-1 which were combined into a latent variable. Mothers and teachers reported on child ADHD symptoms, negative affect, and externalizing behaviors at 48-72 months of age. Maternal inflammation in the 3rd trimester predicted ADHD symptoms when children were 4-6 years old (β = 0.53, 95% CI = 0.154, 0.905, p = 0.006). Further, maternal inflammation mediated the effect of prenatal distress on child ADHD (β = 0.21, 95% CI = 0.007, 0.419, p = 0.04). The inflammation effect on ADHD was not explained by concurrent child negative affect, externalizing behavior, or familial ADHD status. This is the first human study to prospectively link maternal pregnancy cytokine levels and offspring ADHD symptoms, suggesting that cytokine levels are a possible marker of ADHD risk. Results also provide new evidence that maternal prenatal inflammation may be one common pathway by which prenatal risk factors influence offspring mental health outcomes.
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Affiliation(s)
- Hanna C. Gustafsson
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA
| | - Elinor L. Sullivan
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA,Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR 97006, USA,University of Oregon, 1585 E 13th Ave, Eugene, OR 97403, USA
| | | | - Kathleen F. Holton
- American University, 4400 Massachusetts Ave NW, Washington, DC 20016, USA
| | - Alice M. Graham
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA
| | - Sarah L. Karalunas
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA
| | - Damien A. Fair
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA
| | - Jennifer M. Loftis
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA,VA Portland Health Care System, 3710 SW US Veterans Hospital Rd, Portland, OR, USA
| | - Joel T. Nigg
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA
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8
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Han Y, Wang J, Zhao Q, Xie X, Song R, Xiao Y, Kang X, Zhang L, Zhang Y, Peng C, You Z. Pioglitazone alleviates maternal sleep deprivation-induced cognitive deficits in male rat offspring by enhancing microglia-mediated neurogenesis. Brain Behav Immun 2020; 87:568-578. [PMID: 32032783 DOI: 10.1016/j.bbi.2020.02.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 02/03/2020] [Accepted: 02/03/2020] [Indexed: 12/12/2022] Open
Abstract
Maternal sleep disturbance in pregnancy causes cognitive impairments and emotional disorders in offspring. Microglia-mediated inflammatory processes contribute to prenatal stress-induced neurodevelopmental deficits. Peroxisome proliferator-activated receptor gamma (PPARγ) activation underlies the switching of microglial activation phenotypes, which has emerged as a pharmacological target for regulating neuroinflammatory responses in the treatment of neuropsychiatric disorders. Here we investigated the effects of PPARγ-dependent microglial activation on neurogenesis and cognitive behavioral outcomes in male rat offspring exposed to maternal sleep deprivation (MSD) for 72 h from days 18-21 of pregnancy. In the Morris water maze test, male MSD rat offspring needed more time than control offspring to escape to the hidden platform and spent less time in the target quadrant when the hidden platform was removed. In MSD rat offspring, microglial density as determined by immunofluorescence was higher, microglia showed fewer and shorter processes, and neurogenesis in the hippocampus was significantly reduced. Levels of mRNA encoding pro-inflammatory markers IL-6, TNFα, and IL-1β were higher in male MSD offspring, whereas levels of anti-inflammatory markers Arg1, IL-4, and IL-10 were lower, as was PPARγ expression in the hippocampus. PPARγ activation by pioglitazone (30 mg/kg/day, i.p., 7 d) mitigated these negative effects of MSD, rescuing hippocampal neurogenesis and improving cognitive function. The PPARγ inhibitor GW9662 (1 mg/kg/day, i.p., 7 d) eliminated the effects of pioglitazone. Conditioned medium from pioglitazone-treated microglia promoted proliferation and differentiation of neural progenitor cells. These results suggest that MSD-induced deficits in spatial learning and memory can be ameliorated through PPARγ-dependent modulation of microglial phenotypes.
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Affiliation(s)
- Yue Han
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jiutai Wang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qiuying Zhao
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiaofang Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Rui Song
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Ying Xiao
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xixi Kang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Lijuan Zhang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yue Zhang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Zili You
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China.
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9
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Martinez ME, Duarte CW, Stohn JP, Karaczyn A, Wu Z, DeMambro VE, Hernandez A. Thyroid hormone influences brain gene expression programs and behaviors in later generations by altering germ line epigenetic information. Mol Psychiatry 2020; 25:939-950. [PMID: 30356120 PMCID: PMC6482106 DOI: 10.1038/s41380-018-0281-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 08/16/2018] [Accepted: 09/26/2018] [Indexed: 11/09/2022]
Abstract
Genetic factors do not fully account for the relatively high heritability of neurodevelopmental conditions, suggesting that non-genetic heritable factors contribute to their etiology. To evaluate the potential contribution of aberrant thyroid hormone status to the epigenetic inheritance of neurological phenotypes, we examined genetically normal F2 generation descendants of mice that were developmentally overexposed to thyroid hormone due to a Dio3 mutation. Hypothalamic gene expression profiling in postnatal day 15 F2 descendants on the paternal lineage of ancestral male and female T3-overexposed mice revealed, respectively, 1089 and 1549 differentially expressed genes. A large number of them, 675 genes, were common to both sets, suggesting comparable epigenetic effects of thyroid hormone on both the male and female ancestral germ lines. Oligodendrocyte- and neuron-specific genes were strongly overrepresented among genes showing, respectively, increased and decreased expression. Altered gene expression extended to other brain regions and was associated in adulthood with decreased anxiety-like behavior, increased marble burying and reduced physical activity. The sperm of T3-overexposed male ancestors revealed significant hypomethylation of CpG islands associated with the promoters of genes involved in the early development of the central nervous system. Some of them were candidates for neurodevelopmental disorders in humans including Nrg3, Nrxn1, Gabrb3, Gabra5, Apba2, Grik3, Reln, Nsd1, Pcdh8, En1, and Elavl2. Thus, developmental levels of thyroid hormone influence the epigenetic information of the germ line, disproportionately affecting genes with critical roles in early brain development, and leading in future generations to disease-relevant alterations in postnatal brain gene expression and adult behavior.
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Affiliation(s)
- M. Elena Martinez
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA
| | - Christine W. Duarte
- Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA,Graduate School for Biomedical Science and Engineering, University of Maine, Orono, ME, 04469, USA
| | - J. Patrizia Stohn
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA
| | - Aldona Karaczyn
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA
| | - Zhaofei Wu
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA
| | - Victoria E DeMambro
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA
| | - Arturo Hernandez
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, ME, 04074, USA. .,Graduate School for Biomedical Science and Engineering, University of Maine, Orono, ME, 04469, USA. .,Department of Medicine, Tufts University School of Medicine, Boston, MA, USA.
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10
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Multi-, Inter-, and Transgenerational Effects of Drugs of Abuse on Behavior. Curr Top Behav Neurosci 2020; 42:247-258. [PMID: 31396893 DOI: 10.1007/7854_2019_106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Transgenerational epigenetic inheritance is a burgeoning field that has recently garnered much attention. A growing body of evidence identifies behavioral phenotypes associated with inter-, multi-, and transgenerational studies following a wide variety of parental exposures. This chapter in current topics in behavioral neurogenomics examines the evidence for the presence of behavioral phenotypes and, in particular, the varied and often opposite behavioral responses observed with protocol shifts. Effects following parental exposure to drugs of abuse are used as an example of the wide range of behavioral outcomes and the variability associated with these multiple generation studies. The behavioral phenotypes associated with drug exposure are reviewed in depth.
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Sultan S, Patel AG, El-Hassani S, Whitelaw B, Leca BM, Vincent RP, le Roux CW, Rubino F, Aywlin SJB, Dimitriadis GK. Male Obesity Associated Gonadal Dysfunction and the Role of Bariatric Surgery. Front Endocrinol (Lausanne) 2020; 11:408. [PMID: 32636807 PMCID: PMC7318874 DOI: 10.3389/fendo.2020.00408] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/20/2020] [Indexed: 01/01/2023] Open
Abstract
Obesity is an ever growing pandemic and a prevalent problem among men of reproductive age that can both cause and exacerbate male-factor infertility by means of endocrine abnormalities, associated comorbidities, and direct effects on the precision and throughput of spermatogenesis. Robust epidemiologic, clinical, genetic, epigenetic, and preclinical data support these findings. Clinical studies on the impact of medically induced weight loss on serum testosterone concentrations and spermatogenesis is promising but may show differential and unsustainable results. In contrast, literature has demonstrated that weight loss after bariatric surgery is correlated with an increase in serum testosterone concentrations that is superior than that obtained with only lifestyle modifications, supporting a further metabolic benefit from surgery that may be specific to the male reproductive system. The data on sperm and semen parameters is controversial to date. Emerging evidence in the burgeoning field of genetics and epigenetics has demonstrated that paternal obesity can affect offspring metabolic and reproductive phenotypes by means of epigenetic reprogramming of spermatogonial stem cells. Understanding the impact of this reprogramming is critical to a comprehensive view of the impact of obesity on subsequent generations. Furthermore, conveying the potential impact of these lifestyle changes on future progeny can serve as a powerful tool for obese men to modify their behavior. Healthcare professionals treating male infertility and obesity need to adapt their practice to assimilate these new findings to better counsel men about the importance of paternal preconception health and the impact of novel non-medical therapeutic interventions. Herein, we summarize the pathophysiology of obesity on the male reproductive system and emerging evidence regarding the potential role of bariatric surgery as treatment of male obesity-associated gonadal dysfunction.
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Affiliation(s)
- Sana Sultan
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Ameet G. Patel
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Shamsi El-Hassani
- Minimal Access and Bariatric Unit, Princess Royal University Hospital, King's College Hospital NHS Foundation Trust, Orpington, United Kingdom
| | - Benjamin Whitelaw
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Bianca M. Leca
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Royce P. Vincent
- Department of Clinical Biochemistry, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Carel W. le Roux
- Diabetes Complication Research Centre, School of Medicine and Medical Science, UCD Conway Institute, University College Dublin, Belfield, Ireland
| | - Francesco Rubino
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Simon J. B. Aywlin
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Georgios K. Dimitriadis
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
- *Correspondence: Georgios K. Dimitriadis
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Liu L, Wang D, Mi S, Duan Z, Yang S, Song J, Xu G, Yang N, Yu Y. The different effects of viral and bacterial mimics maternal stimuli on ethology of hens and reproduction of their offspring. Poult Sci 2019; 98:4153-4160. [PMID: 30982890 DOI: 10.3382/ps/pez189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/21/2019] [Indexed: 02/02/2023] Open
Abstract
Environmental stimuli resulting from immunological stress can induce transgenerational phenotypic inheritance, but few similar studies are found in avian. Here, we challenged F0 hens with polyinosinic: polycytidylic acid [Poly(I: C)] and lipopolysaccharide (LPS) at 53 wk of age, and then investigated the ethology of the challenged hens. In the unchallenged F1 descendants, the egg quality at 23 wk of age and laying rate (LR) at different stages were measured. Mortality rate (MR) and the days of population LR reaching 50% (D50%LR) at 33 wk of age were also tested in F1 hens. Pearson correlation analysis was subsequently calculated between F1 peripheral blood lymphocytes transcriptome and LR (in L vs. C) and EW (in P vs. C), respectively. The results showed that the ethology and egg-laying variations of stimuli-challenged hens and their descendants could be affected by the 2 kinds of immune stimuli. Poly(I: C) was likely to increase LR, especially in the early laying period and advance the D50%LR in F1 hens. It also reduced the MR, albumen height, and Haugh units of the unchallenged offspring. Whereas LPS could induce a sickness behavior of the challenged F0 hens, it also reduced the LR of F1 hens throughout the study, prolonged the D50%LR, and faded the eggshell color. Correlation analysis showed that Poly(I: C) mainly affected EW, while LPS mainly influenced LR of F1 offspring. All findings in the present study were the first time to be revealed in laying chickens, suggesting the different effects of Poly(I: C) and LPS on chickens and their descendants, and laying the foundation for the study of the influence of maternal experience on offspring in avian.
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Affiliation(s)
- Lei Liu
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Di Wang
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Siyuan Mi
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Zhongyi Duan
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Shuang Yang
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Jiuzhou Song
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742
| | - Guiyun Xu
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Ying Yu
- National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
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Hamada H, Matthews SG. Prenatal programming of stress responsiveness and behaviours: Progress and perspectives. J Neuroendocrinol 2019; 31:e12674. [PMID: 30582647 DOI: 10.1111/jne.12674] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/07/2018] [Accepted: 12/15/2018] [Indexed: 12/12/2022]
Abstract
Parental exposure to stress or glucocorticoids either before or during pregnancy can have profound influences on neurodevelopment, neuroendocrine function and behaviours in offspring. Specific outcomes are dependent on the nature, intensity and timing of the exposure, as well as species, sex and age of the subject. Most recently, it has become evident that outcomes are not confined to first-generation offspring and that there may be intergenerational and transgenerational transmission of effects. There has been intense focus on the mechanisms by which such early exposure leads to long-term and potential transgenerational outcomes, and there is strong emerging evidence that epigenetic processes (histone modifications, DNA methylation, and small non-coding RNAs) are involved. New knowledge in this area may allow the development of interventions that can prevent, ameliorate or reverse the long-term negative outcomes associated with exposure to early adversity. This review will focus on the latest research, bridging human and pre-clinical studies, and will highlight some of the limitations, challenges and gaps that exist in the field.
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Affiliation(s)
- Hirotaka Hamada
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stephen G Matthews
- Departments of Physiology, Obstetrics and Gynaecology and Medicine, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health Systems, Toronto, Ontario, Canada
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14
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Transgenerational Transmission of Enhanced Ocular Dominance Plasticity from Enriched Mice to Their Non-enriched Offspring. eNeuro 2019; 6:eN-NWR-0252-18. [PMID: 30805555 PMCID: PMC6361622 DOI: 10.1523/eneuro.0252-18.2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 11/26/2018] [Accepted: 12/14/2018] [Indexed: 12/21/2022] Open
Abstract
In recent years, evidence has accumulated that non-Mendelian transgenerational inheritance of qualities acquired through experience is possible. In particular, it has been shown that raising rodents in a so-called enriched environment (EE) can not only modify the animals’ behavior and increase their susceptibility to activity-dependent neuronal network changes, but also influences both behavior and neuronal plasticity of the non-enriched offspring. Here, we tested whether such a transgenerational transmission can also be observed in the primary visual cortex (V1) using ocular dominance (OD) plasticity after monocular deprivation (MD) as a paradigm. Whereas OD plasticity after 7 d of MD is absent in standard-cage (SC) raised mice beyond postnatal day (P)110, it is present lifelong in EE-raised mice. Using intrinsic signal optical imaging to visualize cortical activity, we confirm these previous observations and additionally show that OD plasticity is not only preserved in adult EE mice but also in their adult non-enriched offspring: mice born to enriched parents, but raised in SCs at least until P110 displayed similar OD shifts toward the open eye after 7 d of MD as age-matched EE-raised animals. Furthermore, testing the offspring of EE-female versus EE-males with SC-mating partners revealed that only pups of EE-females, but not of EE-males, preserved OD plasticity into adulthood, suggesting that the life experiences of the mother have a greater impact on the continued V1 plasticity of the offspring. The OD plasticity of the non-enriched pups of EE-mothers was, however, mechanistically different from that of non-enriched pups of EE-parents or EE mice.
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15
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Gustafsson HC, Sullivan EL, Nousen EK, Sullivan CA, Huang E, Rincon M, Nigg JT, Loftis JM. Maternal prenatal depression predicts infant negative affect via maternal inflammatory cytokine levels. Brain Behav Immun 2018; 73:470-481. [PMID: 29920327 PMCID: PMC6129422 DOI: 10.1016/j.bbi.2018.06.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 06/12/2018] [Accepted: 06/15/2018] [Indexed: 12/29/2022] Open
Abstract
Maternal depressive symptoms during pregnancy are associated with risk for offspring emotional and behavioral problems, but the mechanisms by which this association occurs are not known. Infant elevated negative affect (increased crying, irritability, fearfulness, etc.) is a key risk factor for future psychopathology, so understanding its determinants has prevention and early intervention potential. An understudied yet promising hypothesis is that maternal mood affects infant mood via maternal prenatal inflammatory mechanisms, but this has not been prospectively examined in humans. Using data from a pilot study of women followed from the second trimester of pregnancy through six months postpartum (N = 68) our goal was to initiate a prospective study as to whether maternal inflammatory cytokines mediate the association between maternal depressive symptoms and infant offspring negative affect. The study sample was designed to examine a broad range of likely self-regulation and mood-regulation problems in offspring; to that end we over-selected women with a family history or their own history of elevated symptoms of attention-deficit/hyperactivity disorder. Results supported the hypothesis: maternal pro-inflammatory cytokines during the third trimester (indexed using a latent variable that included plasma interleukin-6, tumor necrosis factor-alpha and monocyte chemoattractant protein-1 concentrations as indicators) mediated the effect, such that higher maternal depressive symptoms were associated with higher maternal inflammation, and this mediated the effect on maternal report of infant negative affect (controlling for maternal affect during the infant period). This is the first human study to demonstrate that maternal inflammatory cytokines mediate the association between prenatal depression and infant outcomes, and the first to demonstrate a biological mechanism through which depressive symptoms impact infant temperament.
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Affiliation(s)
- Hanna C Gustafsson
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA.
| | - Elinor L Sullivan
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA; Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, OR, USA; University of Oregon, 1585 E 13th Ave, Eugene, OR, USA.
| | - Elizabeth K Nousen
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA.
| | - Ceri A Sullivan
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA.
| | - Elaine Huang
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA; VA Portland Health Care System, 3710 SW US Veterans Hospital Rd, Portland, OR, USA.
| | - Monica Rincon
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA.
| | - Joel T Nigg
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA.
| | - Jennifer M Loftis
- Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, USA; VA Portland Health Care System, 3710 SW US Veterans Hospital Rd, Portland, OR, USA.
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16
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Liu L, Yang N, Xu G, Liu S, Wang D, Song J, Duan Z, Yang S, Yu Y. Transgenerational transmission of maternal stimulatory experience in domesticated birds. FASEB J 2018; 32:fj201800762RR. [PMID: 30260701 DOI: 10.1096/fj.201800762rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The environmental stimuli experienced by a female can influence phenotypes and gene expression in the subsequent generations. We used a specifically designed domesticated-bird model to examine the transgenerational transmission of maternal stimulus exposure, a phenomenon that has been observed but has not been understood in noninbred animals. We subjected parental generation [filial (F)0] hens to viral- or bacterial-like stimulation after artificial insemination. Subsequent filial generations F1 and F2 transmitted growth or fertility variations without further stimulation in contrast to the controls. The whole-genome bisulfite sequence and next-generation mRNA sequencing of peripheral blood lymphocytes (PBLs) from the F1 generation revealed DNA methylome and transcriptome differences in the F1 polyriboinosinic:polyribocytidylic [poly(I:C)] acid or LPS offspring, compared with the F1 controls. In the F1 offspring, DNA methylation changes induced by maternal immune stimulation may have contributed to transcriptional variation. Pathways analysis indicated that the metabolic processes of xenobiotics and drug metabolism pathways, as well as reproduction-related pathways, were involved in the transgenerational transmission of maternal stimulatory experience. Furthermore, LPS-induced transcriptional transmission may have contributed to subfertility, as indicated by the results of comparative analysis between the transcriptomes of spleen tissues across the F0 and F1 generations, as well as the correlative analysis between the transcriptome and reproductive phenotypes. Our findings provide a framework for determining the mechanisms by which maternal stimulatory factors can be inherited transgenerationally with respect to growth, fertility, DNA methylation, and transcriptional levels in outbred animals.-Liu, L., Yang, N., Xu, G., Liu, S., Wang, D., Song, J., Duan, Z., Yang, S., Yu, Y. Transgenerational transmission of maternal stimulatory experience in domesticated birds.
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Affiliation(s)
- Lei Liu
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Guiyun Xu
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Shuli Liu
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Di Wang
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Jiuzhou Song
- Department of Animal and Avian Sciences, University of Maryland, College Park, Maryland, USA
| | - Zhongyi Duan
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Shuang Yang
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
| | - Ying Yu
- National Engineering Laboratory for Animal Breeding, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China; and
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Naviaux RK. Metabolic features and regulation of the healing cycle-A new model for chronic disease pathogenesis and treatment. Mitochondrion 2018; 46:278-297. [PMID: 30099222 DOI: 10.1016/j.mito.2018.08.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/02/2018] [Indexed: 02/07/2023]
Abstract
Without healing, multicellular life on Earth would not exist. Without healing, one injury predisposes to another, leading to disability, chronic disease, accelerated aging, and death. Over 60% of adults and 30% of children and teens in the United States now live with a chronic illness. Advances in mass spectrometry and metabolomics have given scientists a new lens for studying health and disease. This study defines the healing cycle in metabolic terms and reframes the pathophysiology of chronic illness as the result of metabolic signaling abnormalities that block healing and cause the normal stages of the cell danger response (CDR) to persist abnormally. Once an injury occurs, active progress through the stages of healing is driven by sequential changes in cellular bioenergetics and the disposition of oxygen and carbon skeletons used for fuel, signaling, defense, repair, and recovery. >100 chronic illnesses can be organized into three persistent stages of the CDR. One hundred and two targetable chemosensory G-protein coupled and ionotropic receptors are presented that regulate the CDR and healing. Metabokines are signaling molecules derived from metabolism that regulate these receptors. Reframing the pathogenesis of chronic illness in this way, as a systems problem that maintains disease, rather than focusing on remote trigger(s) that caused the initial injury, permits new research to focus on novel signaling therapies to unblock the healing cycle, and restore health when other approaches have failed.
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Affiliation(s)
- Robert K Naviaux
- The Mitochondrial and Metabolic Disease Center, Departments of Medicine, Pediatrics, and Pathology, University of California, San Diego School of Medicine, 214 Dickinson St., Bldg CTF, Rm C102, MC#8467, San Diego, CA 92103, United States.
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18
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Goldberg LR, Gould TJ. Multigenerational and transgenerational effects of paternal exposure to drugs of abuse on behavioral and neural function. Eur J Neurosci 2018; 50:2453-2466. [PMID: 29949212 DOI: 10.1111/ejn.14060] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/08/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023]
Abstract
Addictions are highly heritable disorders, with heritability estimates ranging from 39% to 72%. Multiple studies suggest a link between paternal drug abuse and addiction in their children. However, patterns of inheritance cannot be explained purely by Mendelian genetic mechanisms. Exposure to drugs of abuse results in epigenetic changes that may be passed on through the germline. This mechanism of epigenetic transgenerational inheritance may provide a link between paternal drug exposure and addiction susceptibility in the offspring. Recent studies have begun to investigate the effect of paternal drug exposure on behavioral and neurobiological phenotypes in offspring of drug-exposed fathers in rodent models. This review aims to discuss behavioral and neural effects of paternal exposure to alcohol, cocaine, opioids, and nicotine. Although a special focus will be on addiction-relevant behaviors, additional behavioral effects including cognition, anxiety, and depressive-like behaviors will be discussed.
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Affiliation(s)
- Lisa R Goldberg
- Department of Biobehavioral Health, Penn State University, 219 Biobehavioral Health Building, University Park, PA, 16801, USA
| | - Thomas J Gould
- Department of Biobehavioral Health, Penn State University, 219 Biobehavioral Health Building, University Park, PA, 16801, USA
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Alteration of Hepatic Gene Expression along with the Inherited Phenotype of Acquired Fatty Liver in Chicken. Genes (Basel) 2018; 9:genes9040199. [PMID: 29642504 PMCID: PMC5924541 DOI: 10.3390/genes9040199] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/17/2018] [Accepted: 03/28/2018] [Indexed: 12/25/2022] Open
Abstract
Fatty liver is a widespread disease in chickens that causes a decrease in egg production and even death. The characteristics of the inherited phenotype of acquired fatty liver and the molecular mechanisms underlying it, however, are largely unknown. In the current study, fatty liver was induced in 3 breeds by a high-fat (HF) diet and a methionine choline-deficient (MCD) diet. The results showed that the dwarf Jingxing-Huang (JXH) chicken was more susceptible to fatty liver compared with the layer White Leghorns (WL) and local Beijing-You (BJY) breeds. In addition, it was found that the paternal fatty livers induced by HF diet in JXH chickens were inherited. Compared to birds without fatty liver in the control group, both offsprings and their sires with fatty livers in the paternal group exhibited altered hepatic gene expression profiles, including upregulation of several key genes involved in fatty acid metabolism, lipid metabolism and glucose metabolism (ACACA, FASN, SCD, ACSL5, FADS2, FABP1, APOA4 and ME1). This study uniquely revealed that acquired fatty liver in cocks can be inherited. The hepatic gene expression profiles were altered in chickens with the inherited phenotype of acquired paternal fatty liver and several genes could be candidate biomarkers.
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20
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Cortisol, cortisone, and BDNF in amniotic fluid in the second trimester of pregnancy: Effect of early life and current maternal stress and socioeconomic status. Dev Psychopathol 2018; 30:971-980. [PMID: 29576035 DOI: 10.1017/s0954579418000147] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The prenatal environment shapes the offspring's phenotype; moreover, transgenerational stress and stress during pregnancy may play a role. Brain-derived neurotrophic factor (BDNF) and glucocorticoids influence neurodevelopment during pregnancy, and there is evidence that BDNF in amniotic fluid is mainly of fetal origin, while the source of glucocorticoids is maternal. We tested the hypothesis that maternal early life stress, psychiatric diagnoses, anxiety, perceived stress, and socioeconomic status influence BDNF and glucocorticoid concentrations in amniotic fluid in the second trimester. We studied 79 pregnant women who underwent amniocentesis in the early second trimester and analyzed BDNF, cortisol, and cortisone concentrations in amniotic fluid. The endocrine data were related to maternal early life adversities (Childhood Trauma Questionaire), perceived stress (Perceived Stress Scale), anxiety, socioeconomic status (family income), and the presence of psychiatric diseases. We found BDNF in amniotic fluid to be positively related to maternal early adversity (Childhood Trauma Questionaire). Low family income (socioeconomic status) was related to high amniotic fluid glucocorticoid concentrations. Neither glucocorticoid concentrations nor hydroxy steroid dehydrogenase (HSD2) activity could be related to BDNF concentrations in amniotic fluid. Early maternal adverse events may be reflected in the fetal BDNF regulation, and it should be tested whether this relates to differences in neurodevelopment.
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21
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Recovery of Chronic Stress-Triggered Changes of Hippocampal Glutamatergic Transmission. Neural Plast 2018; 2018:9360203. [PMID: 29666637 PMCID: PMC5831735 DOI: 10.1155/2018/9360203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 11/06/2017] [Accepted: 11/28/2017] [Indexed: 01/11/2023] Open
Abstract
Chronic stress results in neurochemical, physiological, immune, molecular, cellular, and structural changes in the brain and often dampens the cognition. The hippocampus has been one major focus in studying the stress responsivity and neural mechanisms underlying depression. Both acute and chronic stress stimuli lead to dynamic changes in excitatory transmission in the hippocampus. The present study examined the potential effects of spontaneous recovery after chronic stress on spatial memory function and glutamatergic transmission in the hippocampus. The results showed that chronic unpredicted mild stress transiently increased AMPA receptor GluA2/3 subunit expression, together with elevated PICK-1 protein expression. Spontaneous recovery restored the behavioral deficits in Barnes maze test, as well as the glutamate receptor expression changes. In conclusion, spontaneous recovery acts as an important mechanism in system homeostasis.
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22
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Chan YL, Saad S, Machaalani R, Oliver BG, Vissel B, Pollock C, Jones NM, Chen H. Maternal Cigarette Smoke Exposure Worsens Neurological Outcomes in Adolescent Offspring with Hypoxic-Ischemic Injury. Front Mol Neurosci 2017; 10:306. [PMID: 29018327 PMCID: PMC5623008 DOI: 10.3389/fnmol.2017.00306] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/11/2017] [Indexed: 12/22/2022] Open
Abstract
Hypoxic-ischemic (HI) encephalopathy occurs in approximately 6 per 1000 term newborns leading to devastating neurological consequences, such as cerebral palsy and seizures. Maternal smoking is one of the prominent risk factors contributing to HI injury. Mitochondrial integrity plays a critical role in neural injury and repair during HI. We previously showed that maternal cigarette smoke exposure (SE) can reduce brain mitochondrial fission and autophagosome markers in male offspring. This was accompanied by increased brain cell apoptosis (active caspase-3) and DNA fragmentation (TUNEL staining). Here, we aimed to investigate whether maternal SE leads to more severe neurological damage after HI brain injury in male offspring. Female BALB/c mice (8 weeks) were exposed to cigarette smoke prior to mating, during gestation, and lactation. At postnatal day 10, half of the pups from each litter underwent left carotid artery occlusion, followed by exposure to 8% oxygen (92% nitrogen). At postnatal day 40-44, maternal SE reduced grip strength in grip traction and foot fault tests, which were also reduced by HI injury to similar levels regardless of the maternal group. Limb coordination was impaired by maternal SE which was not worsened by HI injury. Maternal SE increased anxiety level in the offspring, which was normalized by HI injury. Apoptosis markers were increased in different brain regions by maternal SE, with the cortex having further increased TUNEL by HI injury, along with increased markers of inflammation and mitophagy. We conclude that maternal SE can worsen HI-induced cellular damage in male offspring well into adolescence.
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Affiliation(s)
- Yik L Chan
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Sonia Saad
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Renal Research Group, Kolling Institute, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Rita Machaalani
- Department of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Brian G Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Bryce Vissel
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Centre for Neuroscience and Regenerative Medicine, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Carol Pollock
- Renal Research Group, Kolling Institute, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Nicole M Jones
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
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23
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Craig JR, Jenkins TG, Carrell DT, Hotaling JM. Obesity, male infertility, and the sperm epigenome. Fertil Steril 2017; 107:848-859. [DOI: 10.1016/j.fertnstert.2017.02.115] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/21/2017] [Accepted: 02/25/2017] [Indexed: 12/22/2022]
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24
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Pang TYC, Short AK, Bredy TW, Hannan AJ. Transgenerational paternal transmission of acquired traits: Stress-induced modification of the sperm regulatory transcriptome and offspring phenotypes. Curr Opin Behav Sci 2017; 14:140-147. [PMID: 29270445 PMCID: PMC5734660 DOI: 10.1016/j.cobeha.2017.02.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In recent years, it has become evident that pre-conceptual exposure of males to various environmental factors induces epigenetic changes in sperm, which can mediate the transmission of acquired traits in their offspring. The most thoroughly examined paternal exposures involve stress and elevated corticosterone, which have been shown to modulate offspring phenotypes in a manner that is relevant to predisposition to brain disorders, and psychiatric illness in particular. Recent seminal studies have demonstrated that key epigenetic information transmitted via the paternal germline involves small non-coding (snc) RNA transcripts such as microRNAs. Following fertilisation, these sncRNAs appear to regulate development so as to modify the phenotype of the offspring. Understanding the mechanisms involved in such transgenerational effects may facilitate future screening of human sperm for 'epigenetic health' and the tailoring of therapeutic interventions according to genetic and epigenetic contributions to illness.
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Affiliation(s)
- Terence Y C Pang
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, VIC 3010, Australia
| | - Annabel K Short
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, VIC 3010, Australia
- Department of Anatomy and Neurobiology, University of California, Irvine, CA 92617, USA
| | - Timothy W Bredy
- Queensland Brain Institute, University of Queensland, Brisbane, QLD 4072, Australia
- Center for the Neurobiology of Learning and Memory and Department of Neurobiology and Behavior, University of California, Irvine, CA 92617, USA
| | - Anthony J Hannan
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, VIC 3010, Australia
- Department of Anatomy and Neuroscience, University of Melbourne, Parkville, VIC 3010, Australia
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25
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Zhang B. Consequences of early adverse rearing experience(EARE) on development: insights from non-human primate studies. Zool Res 2017; 38:7-35. [PMID: 28271667 PMCID: PMC5368383 DOI: 10.13918/j.issn.2095-8137.2017.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 12/30/2016] [Indexed: 12/18/2022] Open
Abstract
Early rearing experiences are important in one's whole life, whereas early adverse rearing experience(EARE) is usually related to various physical and mental disorders in later life. Although there were many studies on human and animals, regarding the effect of EARE on brain development, neuroendocrine systems, as well as the consequential mental disorders and behavioral abnormalities, the underlying mechanisms remain unclear. Due to the close genetic relationship and similarity in social organizations with humans, non-human primate(NHP) studies were performed for over 60 years. Various EARE models were developed to disrupt the early normal interactions between infants and mothers or peers. Those studies provided important insights of EARE induced effects on the physiological and behavioral systems of NHPs across life span, such as social behaviors(including disturbance behavior, social deficiency, sexual behavior, etc), learning and memory ability, brain structural and functional developments(including influences on neurons and glia cells, neuroendocrine systems, e.g., hypothalamic-pituitary-adrenal(HPA) axis, etc). In this review, the effects of EARE and the underlying epigenetic mechanisms were comprehensively summarized and the possibility of rehabilitation was discussed.
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Affiliation(s)
- Bo Zhang
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming Yunnan 650500, China; Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming Yunnan 650500, China; National Institute of Health, Bethesda, Maryland, USA.
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26
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Sharma A. Transgenerational epigenetics: Integrating soma to germline communication with gametic inheritance. Mech Ageing Dev 2017; 163:15-22. [PMID: 28093237 DOI: 10.1016/j.mad.2016.12.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/07/2016] [Accepted: 12/13/2016] [Indexed: 12/28/2022]
Abstract
Evidence supporting germline mediated epigenetic inheritance of environmentally induced traits has increasingly emerged over the past several years. Although the mechanisms underlying this inheritance remain unclear, recent findings suggest that parental gamete-borne epigenetic factors, particularly RNAs, affect post-fertilization and developmental gene regulation, ultimately leading to phenotypic appearance in the offspring. Complex processes involving gene expression and epigenetic regulation are considered to perpetuate across generations. In addition to transfer of germline factors, epigenetic inheritance via gametes also requires a mechanism whereby the information pertaining to the induced traits is communicated from soma to germline. Despite violating a century-old view in biology, this communication seems to play a role in transmission of environmental effects across generations. Circulating RNAs, especially those associated with extracellular vesicles like exosomes, are emerging as promising candidates that can transmit gene regulatory information in this direction. Cumulatively, these new observations provide a basis to integrate epigenetic inheritance. With significant implications in health, disease and ageing, the latter appears poised to revolutionize biology.
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Affiliation(s)
- Abhay Sharma
- CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research, Sukhdev Vihar, Mathura Road, New Delhi, 110025, India.
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27
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Hodes GE, Walker DM, Labonté B, Nestler EJ, Russo SJ. Understanding the epigenetic basis of sex differences in depression. J Neurosci Res 2017; 95:692-702. [PMID: 27870456 PMCID: PMC5130105 DOI: 10.1002/jnr.23876] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 12/27/2022]
Abstract
Epigenetics refers to potentially heritable processes that can mediate both lasting and transient changes in gene expression in the absence of genome sequence alterations. The field of epigenetics has introduced a novel understanding of the mechanisms through which the environment can shape an individual and potentially its offspring. This Mini-Review examines the current literature exploring the role of epigenetics in the development of mood disorders such as depression. Depression is twofold more common in females, yet the majority of preclinical research has been conducted exclusively in male subjects. Here we discuss what is known about sex differences in epigenetic regulation and function and how this may contribute to the etiology and onset of mood disorders. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Georgia E. Hodes
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Deena M. Walker
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Benoit Labonté
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Eric J. Nestler
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Scott J. Russo
- Fishberg Department of Neuroscience and Freidman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029
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28
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Shi Z, Ren H, Huang Z, Peng Y, He B, Yao X, Yuan TF, Su H. Fish Oil Prevents Lipopolysaccharide-Induced Depressive-Like Behavior by Inhibiting Neuroinflammation. Mol Neurobiol 2016; 54:7327-7334. [PMID: 27815837 DOI: 10.1007/s12035-016-0212-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 10/11/2016] [Indexed: 11/30/2022]
Abstract
Depression is associated with somatic immune changes, and neuroinflammation is now recognized as hallmark for depressive disorders. N-3 (or omega-3) polyunsaturated fatty acids (PUFAs) are well known to suppress neuroinflammation, reduce oxidative stress, and protect neuron from injury. We pretreated animals with fish oil and induced acute depression-like behaviors with systemic lipopolysaccharide (LPS) injection. The levels of cytokines and stress hormones were determined from plasma and different brain areas. The results showed that fish oil treatment prevent LPS-induce depressive behavior by suppression of neuroinflammation. LPS induced acute neuroinflammation in different brain regions, which were prevented in fish oil fed mice. However, neither LPS administration nor fish oil treatment has strong effect on stress hormone secretion in the hypothalamus and adrenal. Fish oil might provide a useful therapy against inflammation-associated depression.
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Affiliation(s)
- Zhe Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Huixia Ren
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zhijian Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Yu Peng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Baixuan He
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoli Yao
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Ti-Fei Yuan
- School of Psychology, Nanjing Normal University, Nanjing, China.
| | - Huanxing Su
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
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29
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Martin GM. Views on the ethical struggle for universal, high quality, affordable health care and its relevance for gerontology. Exp Gerontol 2016; 87:182-189. [PMID: 27105635 DOI: 10.1016/j.exger.2016.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/11/2016] [Accepted: 04/18/2016] [Indexed: 12/20/2022]
Abstract
The US pays about twice as much per capita for health care than any other developed country, yet its health metrics rank among the lowest among peer nations - for example, the US has 12.2 maternal mortality deaths per 100,000 compared to 4.8 in Canada which, like other developed nations, has a single payer health care program. The leading cause of bankruptcies in the US is attributable to medical expenses. Despite recently introduced legislation (the Affordable Care Act) many millions of Americans remain uninsured or underinsured. We shall consider views on the pathogenesis of such a dysfunctional health care system and make suggestions for how it can be improved. We shall also emphasize the importance of an integrated system of universal health care for population-based epidemiological research and preventive medicine, including its implications for the enhancement of the healthspans and lifespans of future generations via trans-generational inheritance. Finally, we suggest that the anticipated major health care savings of such a system, if partially invested in basic and translational research, should accelerate progress towards further gains in healthspans and lifespans.
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Affiliation(s)
- George M Martin
- Department of Pathology, University of Washington, Seattle, WA, USA; Molecular Biology Institute & Semel Institute Center for Social Medicine and Humanities, UCLA, Los Angeles, CA, USA
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