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https://www.readbyqxmd.com/read/28921462/bifidobacterium-pseudocatenulatum-cect-7765-ameliorates-neuroendocrine-alterations-associated-with-an-exaggerated-stress-response-and-anhedonia-in-obese-mice
#1
Ana Agusti, A Moya-Pérez, I Campillo, S Montserrat-de la Paz, V Cerrudo, A Perez-Villalba, Yolanda Sanz
Obesity, besides being a problem of metabolic dysfunction, constitutes a risk factor for psychological disorders. Experimental models of diet-induced obesity have revealed that obese animals are prone to anxious and depressive-like behaviors. The present study aimed to evaluate whether Bifidobacterium pseudocatenulatum CECT 7765 could reverse the neurobehavioral consequences of obesity in a high-fat diet (HFD) fed mouse model via regulation of the gut-brain axis. Adult male wild-type C57BL-6 mice were fed a standard diet or HFD, supplemented with either placebo or the bifidobacterial strain for 13 weeks...
September 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28899766/health-relevance-of-the-modification-of-low-grade-inflammation-in-ageing-inflammageing-and-the-role-of-nutrition
#2
REVIEW
Philip C Calder, Nabil Bosco, Raphaëlle Bourdet-Sicard, Lucile Capuron, Nathalie Delzenne, Joel Doré, Claudio Franceschi, Markus J Lehtinen, Tobias Recker, Stefano Salvioli, Francesco Visioli
Ageing of the global population has become a public health concern with an important socio-economic dimension. Ageing is characterised by an increase in the concentration of inflammatory markers in the bloodstream, a phenomenon that has been termed "inflammageing". The inflammatory response is beneficial as an acute, transient reaction to harmful conditions, facilitating the defence, repair, turnover and adaptation of many tissues. However, chronic and low grade inflammation is likely to be detrimental for many tissues and for normal functions...
September 9, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28893994/gut-microbiota-from-multiple-sclerosis-patients-enables-spontaneous-autoimmune-encephalomyelitis-in-mice
#3
Kerstin Berer, Lisa Ann Gerdes, Egle Cekanaviciute, Xiaoming Jia, Liang Xiao, Zhongkui Xia, Chuan Liu, Luisa Klotz, Uta Stauffer, Sergio E Baranzini, Tania Kümpfel, Reinhard Hohlfeld, Gurumoorthy Krishnamoorthy, Hartmut Wekerle
There is emerging evidence that the commensal microbiota has a role in the pathogenesis of multiple sclerosis (MS), a putative autoimmune disease of the CNS. Here, we compared the gut microbial composition of 34 monozygotic twin pairs discordant for MS. While there were no major differences in the overall microbial profiles, we found a significant increase in some taxa such as Akkermansia in untreated MS twins. Furthermore, most notably, when transplanted to a transgenic mouse model of spontaneous brain autoimmunity, MS twin-derived microbiota induced a significantly higher incidence of autoimmunity than the healthy twin-derived microbiota...
September 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28881854/microbiota-gut-brain-axis-and-the-central-nervous-system
#4
REVIEW
Xiqun Zhu, Yong Han, Jing Du, Renzhong Liu, Ketao Jin, Wei Yi
The gut and brain form the gut-brain axis through bidirectional nervous, endocrine, and immune communications. Changes in one of the organs will affect the other organs. Disorders in the composition and quantity of gut microorganisms can affect both the enteric nervous system and the central nervous system (CNS), thereby indicating the existence of a microbiota-gut-brain axis. Due to the intricate interactions between the gut and the brain, gut symbiotic microorganisms are closely associated with various CNS diseases, such as Parkinson's disease, Alzheimer's disease, schizophrenia, and multiple sclerosis...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28874832/antibiotic-induced-perturbations-in-microbial-diversity-during-post-natal-development-alters-amyloid-pathology-in-an-aged-appswe-ps1%C3%AE-e9-murine-model-of-alzheimer-s-disease
#5
Myles R Minter, Reinhard Hinterleitner, Marlies Meisel, Can Zhang, Vanessa Leone, Xiaoqiong Zhang, Paul Oyler-Castrillo, Xulun Zhang, Mark W Musch, Xunuo Shen, Bana Jabri, Eugene B Chang, Rudolph E Tanzi, Sangram S Sisodia
Recent evidence suggests the commensal microbiome regulates host immunity and influences brain function; findings that have ramifications for neurodegenerative diseases. In the context of Alzheimer's disease (AD), we previously reported that perturbations in microbial diversity induced by life-long combinatorial antibiotic (ABX) selection pressure in the APPSWE/PS1ΔE9 mouse model of amyloidosis is commensurate with reductions in amyloid-β (Aβ) plaque pathology and plaque-localised gliosis. Considering microbiota-host interactions, specifically during early post-natal development, are critical for immune- and neuro-development we now examine the impact of microbial community perturbations induced by acute ABX exposure exclusively during this period in APPSWE/PS1ΔE9 mice...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28859865/ischemic-stroke-damages-the-intestinal-mucosa-and-induces-alteration-of-the-intestinal-lymphocytes-and-ccl19-mrna-in-rats
#6
Yaning Liu, Shijian Luo, Li Kou, Chaogang Tang, Ruxun Huang, Zhong Pei, Zhendong Li
The immunoreaction has a pivotal effect on ischemic stroke. It has been demonstrated that intestinal lymphocytes infiltrate into the brain and aggravate tissue injury after stroke. However, less attention has been paid to the influence on the intestinal immunology as well as morphology. Here, we utilized a rat permanent middle cerebral artery occlusion (MCAO) model to investigate the influences on intestinal mucosa, lymphocytes of the gut-associated lymphoid tissue (GALT), and the intestinal expression of CCL25 mRNA and CCL19 mRNA of stroke...
August 30, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28844808/the-microbiota-gut-brain-axis-in-obesity
#7
REVIEW
Cristina Torres-Fuentes, Harriët Schellekens, Timothy G Dinan, John F Cryan
Changes in microbial diversity and composition are increasingly associated with several disease states including obesity and behavioural disorders. Obesity-associated microbiota alter host energy harvesting, insulin resistance, inflammation, and fat deposition. Additionally, intestinal microbiota can regulate metabolism, adiposity, homoeostasis, and energy balance as well as central appetite and food reward signalling, which together have crucial roles in obesity. Moreover, some strains of bacteria and their metabolites might target the brain directly via vagal stimulation or indirectly through immune-neuroendocrine mechanisms...
August 24, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28843452/the-microbiome-as-a-key-regulator-of-brain-behaviour-and-immunity-commentary-on-the-2017-named-series
#8
Michael T Bailey, John F Cryan
The focus on the microbiome for the 2017 Named Series in Brain, Behavior, and Immunity reflects the rapidly growing interest in commensal microbes and the effects that they can have on physiological processes often studied in PsychoNeuroImmunology Research. The studies included in this Named Series show that commensal microbes can impact immune system activity, as well as brain and behavioural processes across the lifespan, and are involved in behavioural and immunological responses to social stresses. The studies also show that dietary effects on brain, behaviour, and immunity often involve alterations of the gut microbiota...
August 23, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28818559/-to-boldly-go-where-no-one-has-gone-before
#9
Keith W Kelley
Americans are suffering from a culture of taking pills. Six out of ten Americans utilize at least one prescription drug, and more than one in ten use five or more prescription medicines. Although this torrent of taking pills is already high, drug use in the USA has not yet crested. Prescription drugs have specific targets, but often they adversely affect other tissues and organs. In keeping with the mission of the recently named National Center for Complementary and Integrative Health (NCCIH), Brain, Behavior, and Immunity searches for the underlying cause and potential efficacy of both drug and non-drug interventions...
August 14, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28816544/animal-inflammation-based-models-of-depression-and-their-application-to-drug-discovery
#10
Li Ma, Konstantin A Demin, Tatyana O Kolesnikova, Sergey L Kharsko, Xiaokang Zhu, Xiaodong Yuan, Cai Song, Darya A Meshalkina, Brian E Leonard, Li Tian, Allan V Kalueff
Depression, anxiety and other affective disorders are globally widespread and severely debilitating human brain diseases. Despite their high prevalence and mental health impact, affective pathogenesis is poorly understood, and often remains recurrent and resistant to treatment. The lack of efficient antidepressants and presently limited conceptual innovation necessitate novel approaches and new drug targets in the field of antidepressant therapy. Areas covered: Herein, the authors discuss the emerging role of neuro-immune interactions in affective pathogenesis, which can become useful targets for CNS drug discovery, including modulating neuroinflammatory pathways to alleviate affective pathogenesis...
August 17, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28815394/shared-dysregulation-of-homeostatic-brain-body-pathways-in-depression-and-type-2-diabetes
#11
REVIEW
Claire J Hoogendoorn, Juan F Roy, Jeffrey S Gonzalez
PURPOSE OF REVIEW: The purpose of this review is to provide an overview of shared dysregulation of the hypothalamic-pituitary-adrenal (HPA) and brain-gut-microbiome (BGM) axes associated with depression and type 2 diabetes (T2D). Clinical implications and future research are also discussed. RECENT FINDINGS: Both depression and T2D are associated with dysregulation of the HPA and BGM axes. These pathways regulate immune function, glucose metabolism, and sleep, which are altered in both illnesses...
August 16, 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28751472/parkinson-disease-associated-lrrk2-g2019s-transgene-disrupts-marrow-myelopoiesis-and-peripheral-th17-response
#12
Jeongho Park, Jang-Won Lee, Scott C Cooper, Hal E Broxmeyer, Jason R Cannon, Chang H Kim
Parkinson's disease (PD) is a neurodegenerative disease, whereas Crohn's disease is an inflammatory bowel disease. Interestingly, polymorphisms in the LRRK2 gene have been identified as risk factors for both diseases. LRRK2 G2019S is the most prevalent mutation found in PD. To gain insights into the role of the LRRK2 G2019S gene on the development and activation of the immune system in the brain-gut axis, we investigated the effect of LRRK2 G2019S on bone marrow myeloid progenitors and myeloid cell function in the periphery...
July 27, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28738330/the-brain-gut-axis-contributes-to-neuroprogression-in-stress-related-disorders
#13
Kieran Rea, Timothy G Dinan, John F Cryan
There is a growing emphasis on the relationship between the complexity and diversity of the microorganisms that inhabit our gut (human gastrointestinal microbiota) and brain health. The microbiota-gut-brain axis is a dynamic matrix of tissues and organs including the brain, glands, gut, immune cells, and gastrointestinal microbiota that communicate in a complex multidirectional manner to maintain homeostasis. Changes in this environment may contribute to the neuroprogression of stress-related disorders by altering physiological processes including hypothalamic-pituitary-adrenal axis activation, neurotransmitter systems, immune function, and inflammatory responses...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28723608/breastfeeding-and-the-gut-brain-axis-is-there-a-role-for-melatonin
#14
REVIEW
George Anderson, Cathy Vaillancourt, Michael Maes, Russel J Reiter
The benefits of breastfeeding over formula feed are widely appreciated. However, for many mothers breastfeeding is not possible, highlighting the need for a significant improvement in the contents of formula feed. In this article, the overlooked role of melatonin and the melatonergic pathways in breast milk and in the regulation of wider breast milk components are reviewed. There is a growing appreciation that the benefits of breastfeeding are mediated by its effects in the infant gut, with consequences for the development of the gut-brain axis and the immune system...
September 26, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28681625/coeliac-disease-and-psychiatric-comorbidity-epidemiology-pathophysiological-mechanisms-quality-of-life-and-gluten-free-diet-effects
#15
Giulia Cossu, Mauro Giovanni Carta, Federico Contu, Quirico Mela, Luigi Demelia, Luca Elli, Bernardo Dell'Osso
Coeliac Disease (CD) is an autoimmune disease in which an environmental factor, gluten, triggers a pathological reaction. It results in intra- and entra-intestinal manifestations of disease, including, most frequently, diarrhoea, weight loss, and anaemia. CD occurs in ∼1% of the western population, being one of the most common autoimmune lifelong disorders, and may present with a variety of psychiatric comorbidities. Psychiatric comorbidity in CD often complicates the diagnosis, reduces the quality-of-life, and worsens the prognosis of affected patients...
July 6, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28676351/bidirectional-brain-gut-interactions-and-chronic-pathological-changes-after-traumatic-brain-injury-in-mice
#16
Elise L Ma, Allen D Smith, Neemesh Desai, Lumei Cheung, Marie Hanscom, Bogdan A Stoica, David J Loane, Terez Shea-Donohue, Alan I Faden
OBJECTIVES: Traumatic brain injury (TBI) has complex effects on the gastrointestinal tract that are associated with TBI-related morbidity and mortality. We examined changes in mucosal barrier properties and enteric glial cell response in the gut after experimental TBI in mice, as well as effects of the enteric pathogen Citrobacter rodentium (Cr) on both gut and brain after injury. METHODS: Moderate-level TBI was induced in C57BL/6 mice by controlled cortical impact (CCI)...
July 1, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28676349/immunoregulatory-effect-of-mast-cells-influenced-by-microbes-in-neurodegenerative-diseases
#17
Francesco Girolamo, Cristiana Coppola, Domenico Ribatti
When related to central nervous system (CNS) health and disease, brain mast cells (MCs) can be a source of either beneficial or deleterious signals acting on neural cells. We review the current state of knowledge about molecular interactions between MCs and glia in neurodegenerative diseases such as Multiple Sclerosis, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Epilepsy. We also discuss the influence on MC actions evoked by the host microbiota, which has a profound effect on the host immune system, inducing important consequences in neurodegenerative disorders...
July 1, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28665720/characterization-of-clostridium-perfringens-strains-isolated-from-healthy-and-necrotic-enteritis-afflicted-broiler-chickens
#18
Charles Li, Hyun S Lillehoj, Ujvala Deepthi Gadde, Don Ritter, SungTaek Oh
Necrotic enteritis (NE) is an important enteric disease in poultry, and Clostridium perfringens (CP) type A strains are the primary etiology. NE is responsible for annual losses of US $6 billion to the poultry industry in the United States. An increase in the incidence of NE has been also associated with withdrawal of antibiotic growth promoters from poultry feed. In this study, CP strains isolated from healthy and NE-afflicted birds were characterized microbiologically and molecularly, and their virulence was experimentally tested in chickens...
June 2017: Avian Diseases
https://www.readbyqxmd.com/read/28652571/discovery-of-long-range-inhibitory-signaling-to-ensure-single-axon-formation
#19
Tetsuya Takano, Mengya Wu, Shinichi Nakamuta, Honda Naoki, Naruki Ishizawa, Takashi Namba, Takashi Watanabe, Chundi Xu, Tomonari Hamaguchi, Yoshimitsu Yura, Mutsuki Amano, Klaus M Hahn, Kozo Kaibuchi
A long-standing question in neurodevelopment is how neurons develop a single axon and multiple dendrites from common immature neurites. Long-range inhibitory signaling from the growing axon is hypothesized to prevent outgrowth of other immature neurites and to differentiate them into dendrites, but the existence and nature of this inhibitory signaling remains unknown. Here, we demonstrate that axonal growth triggered by neurotrophin-3 remotely inhibits neurite outgrowth through long-range Ca(2+) waves, which are delivered from the growing axon to the cell body...
June 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28651250/a-role-for-neuronal-alpha-synuclein-in-gastrointestinal-immunity
#20
Ethan Stolzenberg, Deborah Berry, De Yang, Ernest Y Lee, Alexander Kroemer, Stuart Kaufman, Gerard C L Wong, Joost J Oppenheim, Supti Sen, Thomas Fishbein, Ad Bax, Brent Harris, Denise Barbut, Michael A Zasloff
BACKGROUND: Alpha-synuclein (αS) is a nerve cell protein associated with Parkinson disease (PD). Accumulation of αS within the enteric nervous system (ENS) and its traffic from the gut to the brain are implicated in the pathogenesis and progression of PD. αS has no known function in humans and the reason for its accumulation within the ENS is unknown. Several recent studies conducted in rodents have linked αS to immune cell activation in the central nervous system. We hypothesized that αS in the ENS might play a role in the innate immune defenses of the human gastrointestinal (GI) tract...
2017: Journal of Innate Immunity
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