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Inflammatory mechanisms depression

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https://www.readbyqxmd.com/read/28092647/dietary-intake-mediates-the-relationship-of-body-fat-to-pain
#1
Charles F Emery, KayLoni L Olson, Andrew Bodine, Victoria Lee, Diane L Habash
Prior studies have documented an association of obesity with chronic pain, but the mechanism explaining the association remains unknown. This study evaluated the degree to which dietary intake of foods with anti-inflammatory effects mediates the relationship of body fat to body pain. Ninety-eight community-residing healthy adults (60% women; mean age = 43.2 ± 15.3 years; range: 20-78 years) participated in a home-based study of home environment, food-related behaviors, health, and adiposity. During a 3-hour home visit evaluation, 3 measures of body fat were collected, including height and weight for calculation of body mass index (BMI)...
February 2017: Pain
https://www.readbyqxmd.com/read/28079228/attenuated-recovery-of-contractile-function-in-aging-hearts-following-global-ischemia-reperfusion-role-of-extracellular-hsp27-and-tlr4
#2
Lihua Ao, Yufeng Zhai, Chunhua Jin, Joseph C Cleveland, David A Fullerton, Xianzhong Meng
BACKGROUND: While cardiac functional recovery is attenuated in the elderly following cardiac surgery with obligatory global myocardial ischemia/reperfusion (I/R), the underlying mechanism remains incompletely understood. We observed previously that human and mouse myocardium releases heat shock protein (HSP) 27 during global I/R. Extracellular HSP27 induces myocardial inflammatory response and plays a role in post-ischemic cardiac dysfunction in adult mouse hearts. OBJECTIVE: This study was to determine the role of extracellular HSP27 and Toll-like receptor 4 (TLR4) in the attenuated functional recovery in aging mouse hearts following global I/R...
December 19, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/28078987/role-of-proinflammatory-cytokines-in-dopaminergic-system-disturbances-implications-for-anhedonic-features-of-mdd
#3
Zihang Pan, Joshua D Rosenblat, Walter Swardfager, Roger S McIntyre
Anhedonia, characterized by a loss of interest and/or pleasure in previously enjoyable activities, is an important diagnostic criterion of Major Depressive Disorder (MDD). Converging evidence implicates a behaviouralcausal relationship between proinflammatory cytokines and disturbances that characterize anhedonia in the context of MDD. Additionally, anhedonia has been implicated in disturbances of key central dopaminergic modulatory pathways. Emerging research into the roles of tetrahydrobiopterin, a cytokine-targeted co-enzyme in the synthesis of dopamine, and kynurenine, a product of inflammation-sensitive breakdown of tryptophan via indoleamine 2, 3-dioxygenase, have shed new light into the role of inflammation in mediating anhedonic behaviours...
January 11, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28077315/inhibition-of-inos-alleviates-cognitive-deficits-and-depression-in-diabetic-mice-through-downregulating-the-no-sgc-cgmp-pkg-signal-pathway
#4
Xiao Yan Zhou, Fang Zhang, Chang Jiang Ying, Jing Chen, Ling Chen, Jing Dong, Yue Shi, Mang Tang, Xiao Tong Hu, Zhi Hua Pan, Na Na Xu, Kui Yang Zheng, Ren Xian Tang, Yuan Jian Song
Diabetes mellitus often results in a number of complications involving impaired brain function, including cognitive deficits and depression. However, the potential mechanisms for diabetes-related cognitive deficits and depression are not fully understood. Neurons in the hippocampal, cortical and amygdala functional regions are more susceptible to damage during hyperglycemia. Neuroprotection in the brain can rescue cognitive deficits and depression induced by hyperglycemia. This study investigated the potential mechanisms underlying diabetes-related congnitive deficits and depression, determined whether the inflammatory factor inducible nitric oxide synthase (iNOS) and the nitric oxide (NO)/soluble guanylyl cyclases (sGC)/cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG) pathway, play key roles in cognitive deficits and depression associated...
January 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28065792/the-analgesic-effects-of-oxytocin-in-the-peripheral-and-central-nervous-system
#5
Qing Xin, Bo Bai, Wenyan Liu
Pain is a ubiquitously unpleasant feeling among humans as well as many animal species often caused by actual and potential tissue damage. However, it is absolutely crucial for our survival in many ways. Acute pain can signal the presence of danger or life-threatenting events, which help escape noxious stimuli. By contrast, when pain becomes chronic or persistent, it becomes an encumbrance and exerts deleterious effects to the body and mind, often co-occured with anxiety and depression. Additionaly, chronic pain is more or less an economic burden for the patients because it requires immediate medical treatments and seriously hinders pepople in their work...
January 5, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28064175/neuroimaging-of-inflammation-in-memory-and-related-other-disorders-nimrod-study-protocol-a-deep-phenotyping-cohort-study-of-the-role-of-brain-inflammation-in-dementia-depression-and-other-neurological-illnesses
#6
W Richard Bevan-Jones, Ajenthan Surendranathan, Luca Passamonti, Patricia Vázquez Rodríguez, Robert Arnold, Elijah Mak, Li Su, Jonathan P Coles, Tim D Fryer, Young T Hong, Guy Williams, Franklin Aigbirhio, James B Rowe, John T O'Brien
INTRODUCTION: Inflammation of the central nervous system is increasingly regarded as having a role in cognitive disorders such as dementia and depression, but it is not clear how such inflammation relates to other aspects of neuropathology, structural and functional changes in the brain and symptoms (as assessed via clinical and neuropsychological assessment and MRI). This study will explore these pathophysiological mechanisms using positron emission tomography (PET) which allows in vivo imaging of inflammation, amyloid and τ deposition, together with neuropsychological profiling, MRI and peripheral biomarker analysis...
January 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28058465/fish-oil-supplementation-attenuates-neuroinflammation-and-alleviates-depressive-like-behavior-in-rats-submitted-to-repeated-lipopolysaccharide
#7
Ruili Dang, Xueyuan Zhou, Mimi Tang, Pengfei Xu, Xiaoxue Gong, Yuanyuan Liu, Hongxiao Jiao, Pei Jiang
PURPOSE: Depression is frequently associated with inflammation, whereas omega-3 polyunsaturated fatty acids (PUFAs) primarily found in fish oil possess anti-inflammatory properties. Although converging studies suggest an antidepressant effect of PUFAs, there is limited evidence directly linking the neuro-immune modulating features of PUFAs to the antidepressant actions. METHODS: Therefore, we assessed the effects of fish oil (FO) supplementation on behavioral changes, inflammatory cytokine expression and oxidative reactions in frontal cortex and hippocampus of rats following repeated peripheral immune challenge by lipopolysaccharide (LPS) for 2 weeks (500 μg/kg every other day)...
January 5, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28035782/wonoep-appraisal-biomarkers-of-epilepsy-associated-comorbidities
#8
REVIEW
Teresa Ravizza, Filiz Y Onat, Amy R Brooks-Kayal, Antoine Depaulis, Aristea S Galanopoulou, Andrey Mazarati, Adam L Numis, Raman Sankar, Alon Friedman
Neurologic and psychiatric comorbidities are common in patients with epilepsy. Diagnostic, predictive, and pharmacodynamic biomarkers of such comorbidities do not exist. They may share pathogenetic mechanisms with epileptogenesis/ictogenesis, and as such are an unmet clinical need. The objectives of the subgroup on biomarkers of comorbidities at the XIII Workshop on the Neurobiology of Epilepsy (WONOEP) were to present the state-of-the-art recent research findings in the field that highlighting potential biomarkers for comorbidities in epilepsy...
December 30, 2016: Epilepsia
https://www.readbyqxmd.com/read/28030814/paeoniflorin-ameliorates-interferon-alpha-induced-neuroinflammation-and-depressive-like-behaviors-in-mice
#9
Jianwei Li, Shaohui Huang, Weiliang Huang, Wanshan Wang, Ge Wen, Lei Gao, Xiuqiong Fu, Mengmeng Wang, Weihai Liang, Hiu Yee Kwan, Xiaoshan Zhao, Zhiping Lv
Long-term treatment with high-dose Interferon-alpha (IFN-α) has resulted in depression in 30-50% of the patients. Paeoniflorin may ameliorate the IFN-α-induced depression; however, the underlying mechanism is less studied. Here, we investigated the prophylactic antidepressant and anti-neuroinflammatory effects of paeoniflorin on the behaviors and specific emotion-related regions of the brain in mice with IFN-α-induced depression. A series of behavior assessments were conducted to identify the depressive state after subcutaneously IFN-α injections and with or without intragastrically paeoniflorin administration in C57BL/6J mice...
December 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/28026813/-mechanisms-of-perioperative-corneal-abrasions-alterations-in-tear-film-proteome
#10
E Yu Zernii, O S Gancharova, I E Ishutina, V E Baksheeva, M O Golovastova, E I Kabanova, M S Savchenko, M V Serebryakova, L F Sotnikova, A A Zamyatnin, P P Philippov, I I Senin
Perioperative corneal abrasion is an ophthalmic complication commonly found in patients underwent general anesthesia. In this study, correlations between development of corneal injury and proteomic changes in tear film during general anesthesia were examined using an animal (rabbit) model. Being started after 1-h anesthesia, the process of accumulation of pathological changes in the cornea unequivocally led clinically significant abrasions following 3-6 h of the narcosis. The corneal damage was associated with alterations in profiles of major proteins of the tear film...
November 2016: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/28025035/resveratrol-suppresses-neuroinflammation-in-the-experimental-paradigm-of-autism-spectrum-disorders
#11
Ranjana Bhandari, Anurag Kuhad
BACKGROUND: Neuronal dysfunction caused by neuroinflammation triggered by the stimulation of matrix metalloproteinases and the subsequent release of pro-inflammatory cytokines, as a result of oxidative stress and mitochondrial dysfunction, is one of the probable mechanisms involved in the pathogenesis of autism spectrum disorders (ASD). The aim of the present study was to explore the ameliorative potential of resveratrol on neuroinflammation in the experimental paradigm of neuroinflammatory model of ASD in rats...
December 23, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/28019026/psychedelics-as-medicines-an-emerging-new-paradigm
#12
D E Nichols, M W Johnson, C D Nichols
Scientific interest in serotonergic psychedelics (e.g., psilocybin and LSD; 5-HT2A receptor agonists) has dramatically increased within the last decade. Clinical studies administering psychedelics with psychotherapy have shown preliminary evidence of robust efficacy in treating anxiety and depression, as well as addiction to tobacco and alcohol. Moreover, recent research has suggested that these compounds have potential efficacy against inflammatory diseases through novel mechanisms, with potential advantages over existing antiinflammatory agents...
November 4, 2016: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28017669/depression-can-be-prevented-by-astaxanthin-through-inhibition-of-hippocampal-inflammation-in-diabetic-mice
#13
Xiao-Yan Zhou, Fang Zhang, Xiao-Tong Hu, Jing Chen, Ren-Xian Tang, Kui-Yang Zheng, Yuan-Jian Song
The critical factor considered in a depression induced by diabetes is the inflammation eliciting hippocampal, amygdala and thalamic neuronal injury. Therefore, inhibiting inflammatory reactions in the brain and reducing neuronal injury can alleviate depression in rodents suffering from diabetes mellitus. The oral administration of astaxanthin has been employed in emotional disorders and diabetic complications due to its anti-depressant, anti-inflammatory and anti-apoptotic functions. However, it has not been reported whether astaxanthin can improve diabetes-related depression-like behavior, and its potential mechanisms have not been elucidated...
December 22, 2016: Brain Research
https://www.readbyqxmd.com/read/28017641/wy-14643-a-selective-agonist-of-peroxisome-proliferator-activated-receptor-%C3%AE-ameliorates-lipopolysaccharide-induced-depressive-like-behaviors-by-preventing-neuroinflammation-and-oxido-nitrosative-stress-in-mice
#14
Rongrong Yang, Peng Wang, Zhuo Chen, Wenfeng Hu, Yu Gong, Wei Zhang, Chao Huang
Depression is a common disease that afflicts one in six people at some points in life. Numerous hypotheses have been raised in past years, but the exact mechanism that can be used to explain the development of depression remains obscure. Recently, more and more attentions are being focused on neuroinflammation and oxidative stress in depression. WY-14643, an agonist of peroxisome proliferator-activated receptor-α (PPAR-α), has been reported to inhibit neuroinflammation and oxidative stress, and one of our previous studies have showed that WY-14643 possesses antidepressive activities...
December 23, 2016: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28005145/-nutrition-and-mental-diseases-focus-depressive-disorders
#15
L Libuda, J Antel, J Hebebrand, M Föcker
Dietary interventions are currently being discussed as additional treatment options for mental disorders. The pathological mechanisms are not yet fully understood. It is hypothesized that certain nutrients and dietary pattern influence immune and inflammatory processes, the microbiome, the leptin-melanocortinergic axis and hypothalamic-pituitary axis, as well as neurotransmitters of the cholinergic, noradrenergic, dopaminergic and serotonergic signaling cascades and neurotrophins. Observational studies have shown that traditional dietary patterns, such as the Mediterranean diet have a protective effect on mental health...
December 22, 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27999541/parahippocampal-cortex-mediates-the-relationship-between-lutein-and-crystallized-intelligence-in-healthy-older-adults
#16
Marta K Zamroziewicz, Erick J Paul, Chris E Zwilling, Elizabeth J Johnson, Matthew J Kuchan, Neal J Cohen, Aron K Barbey
Introduction: Although, diet has a substantial influence on the aging brain, the relationship between dietary nutrients and aspects of brain health remains unclear. This study examines the neural mechanisms that mediate the relationship between a carotenoid important for brain health across the lifespan, lutein, and crystallized intelligence in cognitively intact older adults. We hypothesized that higher serum levels of lutein are associated with better performance on a task of crystallized intelligence, and that this relationship is mediated by gray matter structure of regions within the temporal cortex...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27994221/dynamic-modulation-of-inflammatory-pain-related-affective-and-sensory-symptoms-by-optical-control-of-amygdala-metabotropic-glutamate-receptor-4
#17
C Zussy, X Gómez-Santacana, X Rovira, D De Bundel, S Ferrazzo, D Bosch, D Asede, F Malhaire, F Acher, J Giraldo, E Valjent, I Ehrlich, F Ferraguti, J-P Pin, A Llebaria, C Goudet
Contrary to acute pain, chronic pain does not serve as a warning signal and must be considered as a disease per se. This pathology presents a sensory and psychological dimension at the origin of affective and cognitive disorders. Being largely refractory to current pharmacotherapies, identification of endogenous systems involved in persistent and chronic pain is crucial. The amygdala is a key brain region linking pain sensation with negative emotions. Here, we show that activation of a specific intrinsic neuromodulatory system within the amygdala associated with type 4 metabotropic glutamate receptors (mGlu4) abolishes sensory and affective symptoms of persistent pain such as hypersensitivity to pain, anxiety- and depression-related behaviors, and fear extinction impairment...
December 20, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27991692/inhibition-of-lung-cancer-in-diethylnitrosamine-induced-mice-by-rhizoma-paridis-saponins
#18
Shuli Man, Jing Li, Peiyu Qiu, Jing Liu, Zhen Liu, Long Ma, Wenyuan Gao
Lung cancer is the foremost cause of cancer mortality and a growing economic burden worldwide. Rhizoma Paridis saponins (RPS) have been reported to exhibit potential anti-tumor effects on many kinds of tumor models. The present study was designed to investigate the mechanism-based chemopreventive nature of RPS against DEN-induced lung carcinogenesis in Kunming mice. As a result, the treatment with RPS reduced the severity of pulmonary histopathology. The mechanism of its antitumor effect involved in (a) reducing oxidative stress injury through up-regulating activities of CAT and SOD, (b) down-regulating the levels of inflammatory factors, like TNF-α, IL6, COX-2 and PGE2, (c) activation of caspase-3 and up-regulating the pro-apoptotic protein Bax, (d) decreasing the expression of PCNA, (e) depressing the expression of cancer stem cells marker CD133, (f) suppressing aberrant expression of cytokeratin 8 and 18, and (g) inhibiting EGFR/ PI3K/Akt, EGFR/Ras/Erk and NF-κB pathways...
December 19, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27978497/magnesium-isoglycyrrhizinate-attenuates-lipopolysaccharide-induced-depressive-like-behavior-in-mice
#19
Wenjiao Jiang, Qianying Chen, Peijin Li, Qianfeng Lu, Xue Pei, Yilin Sun, Guangji Wang, Kun Hao
Magnesium Isoglycyrrhizinate (MI) is a magnesium salt of 18α-GA stereoisomer which has been reported to exert hepatoprotective activity. The aim of the present study was to ascertain the underlying mechanisms behind the action of Magnesium Isoglycyrrhizinate on neuroinflammatation and oxidative stress in LPS-stimulated mice. Mice were pretreated with Magnesium Isoglycyrrhizinate (MI, 25, 50mg/kg) as well as fluoxetine (Flu, positive control, 20mg/kg) once daily for one week before intraperitoneal injection of LPS (0...
December 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27977895/a-soluble-form-of-psgl-1-requires-nrf2-signaling-to-protect-liver-transplant-endothelial-cells-against-ischemia-reperfusion-injury
#20
Cheng Zhang, Yu Zhang, Yuanxing Liu, Yuan Liu, Shoichi Kageyama, Xiu-da Shen, Feng Gao, Shusen Zheng, Ronald W Busuttil, Gray D Shaw, Haofeng Ji, Jerzy W Kupiec-Weglinski
Liver endothelial cell (LEC) damage is essential in the pathogenesis of ischemia-reperfusion injury (IRI) in transplant recipients. We analyzed the mechanism of LEC resistance against IRI by using a novel recombinant soluble form of PSGL-1 (Tandem P-Selectin Glycoprotein Ligand-Immunoglobulin; TSGL-Ig) in a mouse model of hepatic cold preservation (4°C in UW for 20h) and syngeneic orthotopic liver transplantation (OLT). Unlike in controls, TSGL-Ig protected OLT against IR-stress, evidenced by depressed sALT levels, well-preserved hepatic architecture, and improved survival (42% vs...
December 15, 2016: American Journal of Transplantation
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