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Brain, Behavior, and Immunity

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https://www.readbyqxmd.com/read/28813640/innate-immune-signaling-in-the-ventral-tegmental-area-contributes-to-drug-primed-reinstatement-of-cocaine-seeking
#1
Kyle T Brown, Sophia C Levis, Casey E O'Neill, Alexis L Northcutt, Timothy J Fabisiak, Linda R Watkins, Ryan K Bachtell
Cocaine addiction is a chronic relapsing disorder characterized by persistent perturbations to an organism's homeostatic processes that result in maladaptive drug seeking. Although considerable attention has been directed at the consequences of neuronal changes following chronic cocaine taking, few studies have examined the role of microglia, the brain's resident immune cells, following chronic cocaine administration. Toll-Like Receptor 4 (TLR4) is a molecular pattern receptor that recognizes pathogens, danger signals, and xenobiotics and induces proinflammatory signaling in the central nervous system...
August 13, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28807718/autonomic-regulation-of-systemic-inflammation-in-humans-a-multi-center-blinded-observational-cohort-study
#2
Gareth L Ackland, Gary Minto, Martin Clark, John Whittle, Robert Cm Stephens, Thomas Owen, Pradeep Prabhu, Ana Gutierrez Del Arroyo
OBJECTIVE: Experimental animal models demonstrate that autonomic activity regulates systemic inflammation. By contrast, human studies are limited in number and exclusively use heart rate variability (HRV) as an index of cardiac autonomic regulation. HRV measures are primarily dependent on, and need to be corrected for, heart rate. Thus, independent autonomic measures are required to confirm HRV-based findings. Here, the authors sought to replicate the findings of preceding HRV-based studies by using HRV-independent, exercise-evoked sympathetic and parasympathetic measures of cardiac autonomic regulation to examine the relationship between autonomic function and systemic inflammation...
August 11, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28804004/charge-density-not-current-density-is-a-more-comprehensive-safety-measure-of-transcranial-direct-current-stimulation
#3
LETTER
Pratik Y Chhatbar, Mark S George, Steven A Kautzc, Wuwei Feng
No abstract text is available yet for this article.
August 10, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28803158/balasubramide-derivative-3c-modulates-microglia-activation-via-camkk%C3%AE-dependent-ampk-pgc-1%C3%AE-pathway-in-neuroinflammatory-conditions
#4
Yunjie Wang, Wenchen Ruan, Junru Mi, Jingzi Xu, Haojie Wang, Zhengyu Cao, Juan M Saavedra, Luyong Zhang, Hansen Lin, Tao Pang
Neuroinflammation plays a vital role in the pathological process of cerebral ischemic stroke, but currently there is no effective treatment. After ischemia, microglia-produced proinflammatory mediator expression contributes to the aggravation of neuroinflammation, while anti-inflammatory activation of microglia develops an anti-neuroinflammatory effect via secretion of anti-inflammatory factor. Promoting the anti-inflammatory activation of microglia might be an effective treatment of stroke. Previously, we discovered one derivative of the natural product (+)-balasubramide, compound 3C, that exhibits a remarkably anti-neuroinflammatory effect in vitro with unknown mechanisms...
August 9, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28803157/toward-comprehensive-tdcs-safety-standards
#5
LETTER
Mark P Jackson, Marom Bikson, David Liebetanz, Michael Nitsche
No abstract text is available yet for this article.
August 9, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28782715/corticosterone-potentiates-dfp-induced-neuroinflammation-and-affects-high-order-diffusion-imaging-in-a-rat-model-of-gulf-war-illness
#6
Bang-Bon Koo, Lindsay T Michalovicz, Samanthan Calderazzo, Kimberly A Kelly, Kimberly Sullivan, Ronald J Killiany, James P O'Callaghan
Veterans of the 1991 Gulf War were potentially exposed to a variety of toxic chemicals, including sarin nerve agent and pesticides, which have been suspected to be involved in the development of Gulf War Illness (GWI). Several of these exposures cause a neuroinflammatory response in mice, which may serve as a basis for the sickness behavior-like symptoms seen in veterans with GWI. Furthermore, conditions mimicking the physiological stress experienced during the war can exacerbate this effect. While neuroinflammation has been observed post-exposure using animal models, it remains a challenge to evaluate neuroinflammation and its associated cellular and molecular changes in vivo in veterans with GWI...
August 4, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28782716/treatment-with-an-interleukin-1-receptor-antagonist-mitigates-neuroinflammation-and-brain-damage-after-polytrauma
#7
Mujun Sun, Rhys D Brady, David K Wright, Hyun Ah Kim, Shenpeng R Zhang, Christopher G Sobey, Maddison R Johnstone, Terence J O'Brien, Bridgette D Semple, Stuart J McDonald, Sandy R Shultz
Traumatic brain injury (TBI) and long bone fracture are common in polytrauma. This injury combination in mice results in elevated levels of the pro-inflammatory cytokine interleukin-1β (IL-1β) and exacerbated neuropathology when compared to isolated-TBI. Here we examined the effect of treatment with an IL-1 receptor antagonist (IL-1ra) in mice given a TBI and a concomitant tibial fracture (i.e., polytrauma). Adult male C57BL/6 mice were given sham-injuries or polytrauma and treated with saline-vehicle or IL-1ra (100 mg/kg)...
August 3, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28782714/electroacupuncture-inhibits-nlrp3-inflammasome-activation-through-cb2-receptors-in-inflammatory-pain
#8
Fang Gao, Hong-Chun Xiang, Hong-Ping Li, Min Jia, Xiao-Li Pan, Hui-Lin Pan, Man Li
The therapeutic effect of electroacupuncture (EA) on inflammatory pain has been well recognized clinically. The inflammasome promotes the maturation of the inflammatory cytokines, and EA can stimulate cannabinoid CB2 receptors in inflamed tissues. In this study we investigated whether EA inhibits NLRP3 inflammasome activation through CB2 receptors and thus relieving inflammatory pain. Assay of Caspase-1 activity and western blotting revealed that complete Freund's adjuvant (CFA) injection activated the NLRP3 inflammasome in the skin tissue in rats, which was attenuated by EA treatment...
August 3, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28780000/systemic-infusions-of-anti-interleukin-1%C3%AE-neutralizing-antibodies-reduce-short-term-brain-injury-after-cerebral-ischemia-in-the-ovine-fetus
#9
Xiaodi Chen, Virginia Hovanesian, Syed Naqvi, Yow-Pin Lim, Richard Tucker, John E Donahue, Edward G Stopa, Barbara S Stonestreet
Perinatal hypoxic-ischemic reperfusion (I/R)-related brain injury is a leading cause of neurologic morbidity and life-long disability in children. Infants exposed to I/R brain injury develop long-term cognitive and behavioral deficits, placing a large burden on parents and society. Therapeutic strategies are currently not available for infants with I/R brain damage, except for hypothermia, which can only be used in full term infants with hypoxic-ischemic encephalopathy (HIE). Moreover, hypothermia is only partially protective...
August 2, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28779999/th17-cells-in-depression
#10
REVIEW
Eléonore Beurel, Jeffrey A Lowell
T helper 17 (Th17) cells have recently been implicated in depression, which adds to the list of several other diseases of the central nervous system (CNS) that are already known to involve Th17 cells. In CNS diseases, it is thought that the signature cytokine produced by Th17 cells, interleukin-17A (IL-17A), mediates the detrimental effects of Th17 cells. In depression, although Th17 cells increase, the lack of a correlation between depression severity and blood IL-17A levels suggests that Th17 cells promote depressive symptoms, which may not be entirely dependent on IL-17...
August 2, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28774789/impaired-cbs-h2s-signaling-axis-contributes-to-mptp-induced-neurodegeneration-in-a-mouse-model-of-parkinson-s-disease
#11
Yu-Qing Yuan, Ya-Li Wang, Bao-Shi Yuan, Xin Yuan, Xiao-Ou Hou, Jin-Song Bian, Chun-Feng Liu, Li-Fang Hu
Hydrogen sulfide (H2S), a novel neuromodulator, is linked to the pathogenesis of several neurodegenerative disorders. Exogenous application of H2S exerts neuroprotection via anti-inflammation and anti-oxidative stress in animal and cellular models of Parkinson's disease (PD). However, the role of endogenous H2S and the contribution of its various synthases in PD remain unclear. In the present study, we found a decline of plasma and striatal sulfide level in 1-methy-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induced PD mouse model...
August 1, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28760504/protection-against-rage-mediated-neuronal-cell-death-by-srage-secreting-human-mesenchymal-stem-cells-in-5xfad-transgenic-mouse-model
#12
Myeongjoo Son, Seyeon Oh, Hyunjin Park, Hyosang Ahn, Junwon Choi, Hyungho Kim, Hye Sun Lee, Sojung Lee, Hye-Jeong Park, Seung U Kim, Bonghee Lee, Kyunghee Byun
Alzheimer's disease (AD), which is the most commonly encountered neurodegenerative disease, causes synaptic dysfunction and neuronal loss due to various pathological processes that include tau abnormality and amyloid beta (Aβ) accumulation. Aβ stimulates the secretion and the synthesis of Receptor for Advanced Glycation End products (RAGE) ligand by activating microglial cells, and has been reported to cause neuronal cell death in amyloid beta1-42 treated rats and in mice with neurotoxin-induced Parkinson's disease...
July 28, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28755859/systemic-inflammation-combined-with-neonatal-cerebellar-haemorrhage-aggravates-long-term-structural-and-functional-outcomes-in-a-mouse-model
#13
Sophie Tremblay, Alex Pai, Lindsay Richter, Rod Vafaei, Praneetha Potluri, Jacob Ellegood, Jason P Lerch, Daniel Goldowitz
BACKGROUND: Despite the increased recognition of cerebellar injury in survivors of preterm birth, the neurodevelopmental consequences of isolated cerebellar injury have been largely unexplored and our current understanding of the functional deficits requires further attention in order to translate knowledge to best practices. Preterm infants are exposed to multiple stressors during their postnatal development including perinatal cerebellar haemorrhage (CBH) and postnatal infection, two major risk factors for neurodevelopmental impairments...
July 27, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28751021/the-association-between-alcohol-abuse-and-neuroendocrine-system-dysregulation-race-differences-in-a-national-sample
#14
Yusuf Ransome, Natalie Slopen, Oskar Karlsson, David R Williams
Health outcomes, including chronic disease and mortality, attributed to or associated with alcohol abuse are discrepant between African Americans and Whites. To date, the topic is not fully understood and few studies conducted have used biomarker indicators of health. We investigated whether the association between alcohol abuse and biomarkers of the neuroendocrine system vary between black or African American and White respondents aged 34 to 84 from the Midlife in the United States Study (MIDUS) II (2004-2006) (n =1,129)...
July 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28751020/nuclear-deterrents-intrinsic-regulators-of-il-1%C3%AE-induced-effects-on-hippocampal-neurogenesis
#15
REVIEW
C S O'Léime, J F Cryan, Y M Nolan
Hippocampal neurogenesis, the process by which new neurons are born and develop into the host circuitry, begins during embryonic development and persists throughout adulthood. Over the last decade considerable insights have been made into the role of hippocampal neurogenesis in cognitive function and the cellular mechanisms behind this process. Additionally, an increasing amount of evidence exists on the impact of environmental factors, such as stress and neuroinflammation on hippocampal neurogenesis and subsequent impairments in cognition...
July 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28751019/the-cystathionine-%C3%AE-synthase-hydrogen-sulfide-pathway-contributes-to-microglia-mediated-neuroinflammation-following-cerebral-ischemia
#16
Minjie Zhang, Xiaowei Wu, Yingxiu Xu, Meijun He, Jiaying Yang, Jie Li, Yuyao Li, Guizhen Ao, Jian Cheng, Jia Jia
The mechanisms underlying neuroinflammation following cerebral ischemia remain unclear. Hydrogen sulfide (H2S), a newly identified gasotransmitter, has been reported to regulate inflammation. In the current study, we investigated whether the endogenous H2S production pathway contributed to microglia-mediated neuroinflammation following stroke. We used a mouse middle cerebral artery occlusion (MCAO) model and an in vitro cellular model to mimic ischemia-induced microglial neuroinflammation. Expression of the H2S synthase cystathionine β-synthase (CBS) and H2S synthetic activity were rapidly decreased in the ischemic brain tissue following MCAO...
July 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28751018/deletion-of-the-p2x4-receptor-is-neuroprotective-acutely-but-induces-a-depressive-phenotype-during-recovery-from-ischemic-stroke
#17
Rajkumar Verma, Chunxia G Cronin, Jacob Hudobenko, Venugopal R Venna, Louise D McCullough, Bruce T Liang
INTRODUCTION: Acute ischemic injury leads to severe neuronal loss. One of the key mechanisms responsible for this effect is inflammation, which is characterized by the activation of myeloid cells, including resident microglia and infiltrating monocytes/macrophages. P2X4 receptors (P2X4Rs) present on these immune cells modulate the inflammatory response. For example, excessive release of adenosine triphosphate during acute ischemic stroke triggers stimulation of P2X4Rs, leading to myeloid cell activation and proliferation and further exacerbating post-ischemic inflammation...
July 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28739514/inhibition-of-blood-brain-barrier-efflux-transporters-promotes-seizure-in-pregnant-rats-role-of-circulating-factors
#18
Abbie C Johnson, Erica S Hammer, Sophie Sakkaki, Sarah M Tremble, Gregory L Holmes, Marilyn J Cipolla
Seizure-provoking factors circulate late in gestation during normal pregnancy, but do not readily gain access to the brain due to the protective nature of the blood-brain barrier. In particular, efflux transporters are powerful ATP-driven pumps that actively prevent unwanted compounds from entering the brain. We hypothesized that acute inhibition of efflux transporters at the blood-brain barrier would result in spontaneous seizures in pregnant rats. We further hypothesized that the blood-brain barrier protects the maternal brain from seizure by increasing expression and/or activity of p-glycoprotein (P-gp), a major efflux transporter...
July 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28739513/intrauterine-inflammation-induces-sex-specific-effects-on-neuroinflammation-white-matter-and-behavior
#19
Ryan Makinson, Kelsey Lloyd, Aditya Rayasam, Sarah McKee, Amy Brown, Guillermo Barila, Nicola Grissom, Robert George, Matt Marini, Zsuzsanna Fabry, Michal Elovitz, Teresa M Reyes
Exposure to inflammation during pregnancy has been linked to adverse neurodevelopmental consequences for the offspring. One common route through which a developing fetus is exposed to inflammation is with intrauterine inflammation. To that end, we utilized an animal model of intrauterine inflammation (IUI; intrauterine lipopolysaccharide (LPS) administration, 50 µg, E15) to assess placental and fetal brain inflammatory responses, white matter integrity, anxiety-related behaviors (elevated zero maze, light dark box, open field), microglial counts, and the CNS cytokine response to an acute injection of LPS in both males and females...
July 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28736035/propane-2-sulfonic-acid-octadec-9-enyl-amide-a-novel-ppar%C3%AE-%C3%AE-dual-agonist-protects-against-ischemia-induced-brain-damage-in-mice-by-inhibiting-inflammatory-responses
#20
Ying Li, Lanxi Xu, Kaiyue Zeng, Zhentian Xu, Daqin Suo, Lu Peng, Tong Ren, Zhiheng Sun, Wushuang Yang, Xin Jin, Lichao Yang
Propane-2-sulfonic acid octadec-9-enyl-amide (N15), an analogue of oleoylethanolamide (OEA), is a novel PPARα/γ dual agonist. Our previous studies verified the positive effects of OEA on the acute and delayed stages of cerebral ischemia. However, it is not clear whether N15 is effective against ischemic cerebral injury. In the present study, male Kunming mice were subjected to middle cerebral artery occlusion (MCAO). To evaluate its preventive effects, N15 (50, 100 or 200 mg/kg, ip) was administered for 3 days before ischemia...
July 20, 2017: Brain, Behavior, and Immunity
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