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Inflammatory mechanisms depression

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https://www.readbyqxmd.com/read/28346507/olive-oil-bioactives-protect-pigs-against-experimentally-induced-chronic-inflammation-independently-of-alterations-in-gut-microbiota
#1
Martin Liehr, Alessandro Mereu, Jose Javier Pastor, Jose Carlos Quintela, Stefanie Staats, Gerald Rimbach, Ignacio Rodolfo Ipharraguerre
Subclinical chronic inflammation (SCI) is associated with impaired animal growth. Previous work has demonstrated that olive-derived plant bioactives exhibit anti-inflammatory properties that could possibly counteract the growth-depressing effects of SCI. To test this hypothesis and define the underlying mechanism, we conducted a 30-day study in which piglets fed an olive-oil bioactive extract (OBE) and their control counterparts (C+) were injected repeatedly during the last 10 days of the study with increasing doses of Escherichia coli lipopolysaccharides (LPS) to induce SCI...
2017: PloS One
https://www.readbyqxmd.com/read/28342944/the-anti-inflammatory-mechanism-of-antidepressants-ssris-snris
#2
REVIEW
Piotr Gałecki, Joanna Mossakowska-Wójcik, Monika Talarowska
The cytokine theory of depression no longer brings about any doubts. Experiments and research studies conducted in the last ten years have confirmed that both physical and psychological (emotional) stress increases the likelihood of occurrence of mental disorders (including depressive disorders) owing to the action of a series of hormonal and biochemical mechanisms. Selective serotonin reuptake inhibitors (SSRI) as well as serotonin and norepinephrine reuptake inhibitors (SNRIs) are some of the most commonly applied drugs in the world during pharmacotherapy of recurrent depressive disorder...
March 22, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28342730/the-association-of-dietary-inflammatory-potential-with-depression-and-mental-well-being-among-u-s-adults
#3
Rachel S Bergmans, Kristen M Malecki
Current treatment for depression is not considered effective among all cases and, thus far, nutritional protocols are minimal within depression treatment guidelines. Recently, there has been increasing interest in a possible protective and modifiable role of diet in common mental disorders, including depression, due to pro- and anti-inflammatory properties of nutrients. This study aims to investigate whether the Dietary Inflammatory Index (DII), designed to estimate the inflammatory potential of diet, is associated with depression and other measures of mental health...
March 22, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28334048/hepatoprotective-effect-of-sitagliptin-against-methotrexate-induced-liver-toxicity
#4
Hany M Abo-Haded, Mohamed A Elkablawy, Zeyad Al-Johani, Osama Al-Ahmadi, Dina S El-Agamy
Sitagliptin is selective dipeptidyl peptidase-4 inhibitor (DPP4-I), used clinically as a new oral anti-diabetic agent. This study explored the underlying mechanisms of the hepatoprotective role of sitagliptin pretreatment against methotrexate (MTX) induced hepatotoxicity in mice. Forty mice were divided into four groups (10 mice each); control, MTX, and two sitagliptin groups (pretreated with sitagliptin 10 and 20 mg/kg/day, respectively) for five consecutive days prior to MTX injection. Results showed that MTX induced marked hepatic injury in the form of cloudy swelling, hydropic degeneration, apoptosis and focal necrosis in all hepatic zones...
2017: PloS One
https://www.readbyqxmd.com/read/28329546/gardner-diamond-syndrome
#5
Joyce H Park, Sarah Yagerman, Hao Feng, Randie H Kim, Shane A Meehan, Jesse Lewin
Gardner-Diamond syndrome, which also is knownas autoerythrocyte sensitization disorder, is a raresyndrome of inflammatory, edematous papulesthat evolve into painful ecchymoses on the trunkand lower legs after a period of stress with no priorhistory of trauma. This syndrome usually occurs inwomen with a history of psychiatric disorders, themost common one being depression. Although theexact mechanism of injury is not well understood,it is hypothesized that these patients haveautoantibodies to phosphatidylserine, which is aphospholipid membrane component in erythrocytes...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28323287/experimental-medication-treatment-approaches-for-depression
#6
REVIEW
D F Ionescu, G I Papakostas
Depression is one of the most common psychiatric conditions. Symptoms can lead to significant disability, which result in impairments in overall quality of life. Though there are many approved antidepressant treatments for depression-including selective serotonin reuptake inhibitors, tricyclic antidepressants and monoamine oxidase inhibitors-about a third of patients do not respond to these medications. Therefore, it is imperative for drug discovery to continue towards the development of novel and rapidly acting compounds, especially for patients with treatment-resistant depression...
March 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28318471/adjunctive-n-acetylcysteine-in-depression-exploration-of-interleukin-6-c-reactive-protein-and-brain-derived-neurotrophic-factor
#7
Kyoko Hasebe, Laura Gray, Chiara Bortolasci, Bruna Panizzutti, Mohammadreza Mohebbi, Srisaiyini Kidnapillai, Briana Spolding, Ken Walder, Michael Berk, Gin Malhi, Seetal Dodd, Olivia M Dean
OBJECTIVE: This study aimed to explore effects of adjunctive N-acetylcysteine (NAC) treatment on inflammatory and neurogenesis markers in unipolar depression. METHODS: We embarked on a 12-week clinical trial of NAC (2000 mg/day compared with placebo) as an adjunctive treatment for unipolar depression. A follow-up visit was conducted 4 weeks following the completion of treatment. We collected serum samples at baseline and the end of the treatment phase (week 12) to determine changes in interleukin-6 (IL6), C-reactive protein (CRP) and brain-derived neurotrophic factor (BDNF) following NAC treatment...
March 20, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28315868/cerebellar-fastigial-nucleus-electrical-stimulation-alleviates-depressive-like-behaviors-in-post-stroke-depression-rat-model-and-potential-mechanisms
#8
Lei Zhang, Mingkui Zhao, Ru-Bo Sui
OBJECTIVE: To identify the molecular mechanism of post-stroke depression (PSD), and observe the therapeutic effects of cerebellar fastigial nucleus electrical stimulation (FNS) on the behaviors and regional cerebral blood flow (rCBF) in a PSD rat model. METHODS: Healthy SD rats were randomly divided into four groups (sham, stroke, post-stroke depress and FNS group). Sham group (n = 6) underwent sham operation. The other three groups (n = 6*3) underwent MCAO. Rats were examined twice a week in open filed test...
March 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28314819/depressive-like-behaviors-are-regulated-by-nox1-nadph-oxidase-by-redox-modification-of-nmda-receptor-1
#9
Masakazu Ibi, Junjie Liu, Noriaki Arakawa, Shiho Kitaoka, Ai Kawaji, Ken-Ichi Matsuda, Kazumi Iwata, Misaki Matsumoto, Masato Katsuyama, Kai Zhu, Satoshi Teramukai, Tomoyuki Furuyashiki, Chihiro Yabe-Nishimura
Involvement of reactive oxygen species (ROS) has been suggested in the development of psychiatric disorders. NOX1 is a non-phagocytic form of NADPH oxidase whose expression in the nervous system is negligible compared with other NOX isoforms. However, NOX1-derived ROS increase inflammatory pain and tolerance to opioid analgesia. To clarify the role of NOX1 in the brain, we examined depressive-like behaviors in mice deficient in Nox1 (Nox1(-/Y)). Depressive-like behaviors induced by chronic social defeat stress or administration of corticosterone (CORT) were significantly ameliorated in Nox1(-/Y) Generation of ROS was significantly elevated in the prefrontal cortex (PFC) of mice administrated with CORT, while NOX1 mRNA was up-regulated only in the ventral tegmental area (VTA) among brain areas responsible for emotional behaviors...
March 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28303466/do-statins-have-antidepressant-effects
#10
Ole Köhler-Forsberg, Christiane Gasse, Michael Berk, Søren Dinesen Østergaard
Statins are used widely in primary and secondary prevention of cardiovascular disease; a treatment effect that has long been thought to be due to their cholesterol-lowering properties. However, statins also have a wide range of anti-inflammatory effects independent of their lipid-lowering mechanisms. In depression, low-grade inflammation is a replicated finding, and several studies have shown antidepressant properties of diverse anti-inflammatory drugs. Large observational studies have suggested reduced risks of depression amongst those taking statins, an effect that is thought to be explained by the anti-inflammatory properties of this class of drugs...
March 16, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28291973/activity-of-the-hypothalamic-pituitary-adrenal-axis-and-inflammatory-mediators-in-major-depressive-disorder-with-or-without-metabolic-syndrome
#11
Marko Martinac, Dragan Babić, Milenko Bevanda, Ivan Vasilj, Danijela Bevanda Glibo, Dalibor Karlović, Miro Jakovljević
BACKGROUND: The aim of the present study was to explore the differences in serum CRP, IL-6, TNF-α, ACTH and cortisol among patients with major depressive disorder with or without metabolic syndrome (MS) compared to a healthy control group. SUBJECTS AND METHODS: The MDD study group consisted of 80 patients (mean age of 50.03±9.55 years). The control group was recruited from the hospital personnel and it consisted of 40 examinees (mean age of 47.20±7.99 years)...
March 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28271656/biological-activity-and-toxicity-of-the-chinese-herb-magnolia-officinalis-rehder-e-wilson-houpo-and-its-constituents
#12
Mélanie Poivre, Pierre Duez
Traditional Chinese herbal drugs have been used for thousands of years in Chinese pharmacopoeia. The bark of Magnolia officinalis Rehder & E. Wilson, known under the pinyin name "Houpo", has been traditionally used in Chinese and Japanese medicines for the treatment of anxiety, asthma, depression, gastrointestinal disorders, headache, and more. Moreover, Magnolia bark extract is a major constituent of currently marketed dietary supplements and cosmetic products. Much pharmacological activity has been reported for this herb and its major compounds, notably antioxidant, anti-inflammatory, antibiotic and antispasmodic effects...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28270247/gut-brain-actions-underlying-comorbid-anxiety-and-depression-associated-with-inflammatory-bowel-disease
#13
Áine Abautret-Daly, Elaine Dempsey, Adolfo Parra-Blanco, Carlos Medina, Andrew Harkin
Introduction Inflammatory bowel disease (IBD) is a chronic relapsing and remitting disorder characterised by inflammation of the gastrointestinal tract. There is a growing consensus that IBD is associated with anxiety- and depression-related symptoms. Psychological symptoms appear to be more prevalent during active disease states with no difference in prevalence between Crohn's disease and ulcerative colitis. Behavioural disturbances including anxiety- and depression-like symptoms have also been observed in animal models of IBD...
March 8, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28263824/suppressive-immunoregulatory-effects-of-three-antidepressants-via-inhibition-of-the-nuclear-factor-%C3%AE%C2%BAb-activation-assessed-using-primary-macrophages-of-carp-cyprinus-carpio
#14
Wenhui Qiu, Minghong Wu, Shuai Liu, Bei Chen, Chenyuan Pan, Ming Yang, Ke-Jian Wang
Antidepressants, having been applied for the treatment of major depressive disorder and other conditions for decades, are among the most commonly detected human pharmaceuticals in the aquatic environment. This study evaluated the immunotoxicity of acute exposure to environmentally relevant concentrations of amitriptyline, fluoxetine and mianserin using an in vitro primary macrophage model isolated from red common carp (Cyprinus carpio), and also explored their potential mechanisms of action. A potential suppressive immunoregulatory effect of antidepressant exposure was suggested based on the observed suppressive effects on oxidative stress parameters, bactericidal activity, NO production, and NO synthase activity, as well as pro-inflammatory cytokine gene expression, and a significant stimulatory effect on anti-inflammatory interleukin-10 and interferon cytokine gene expression and ATPase activities in macrophages after 6h-exposure to three individual antidepressants and a combination thereof...
March 3, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28262343/pedf-improves-atherosclerotic-plaque-stability-by-inhibiting-macrophage-inflammation-response
#15
Hao Wen, Minghao Liu, Zhaoqiang Liu, Xiaoyan Yang, Xiaoling Liu, Mei Ni, Mei Dong, Xiaorong Luan, Yan Yuan, Xinsheng Xu, Huixia Lu
BACKGROUND: Atherosclerosis is a vascular disease with plaque formation and growth. Instable plaque with chronic inflammation is closely related to adverse cardiac outcomes. Pigment epithelium-derived factor (PEDF) is an endogenous multifunctional cytokine that possesses the ability of anti-inflammation. The aim of this study is to detect whether PEDF has protective effect on the stability of atherosclerotic plaque and to explore whether the effect of anti-inflammation involved. METHODS AND RESULTS: ApoE(-/-) mice fed with high fat diet and RAW264...
May 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28259714/protective-effect-of-losartan-and-ramipril-against-stress-induced-insulin-resistance-and-related-complications-anti-inflammatory-mechanisms
#16
Barinder Singh, Ashish Mourya, Sangeeta Pilkhwal Sah, Anil Kumar
Chronic restraint stress (CRS) is known to cause various behavioural and biochemical alterations, leading to several negative health outcomes. The present study was designed to explore the impact of inhibiting Renin angiotensin aldosterone system (RAAS) and inflammatory pathways in stress pathophysiology. In the present study, male LACA mice were subjected to restraint stress daily for 30 days. Losartan, nimesulide, ramipril, minocycline and their combinations were administered 45min prior to restraint stress daily and their effects were observed...
March 1, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28254818/e-prostanoid-3-receptor-mediates-sprouting-angiogenesis-through-suppression-of-the-protein-kinase-a-%C3%AE-catenin-notch-pathway
#17
Di Chen, Juan Tang, Qiangyou Wan, Jian Zhang, Kai Wang, Yujun Shen, Ying Yu
OBJECTIVEW: Angiogenesis is a hallmark of embryonic development and various ischemic and inflammatory diseases. Prostaglandin E2 receptor subtype 3 (EP3) plays an important role in pathophysiologic angiogenesis; however, the precise mechanisms remain unknown. Here, we investigated the role of EP3 in zebra fish embryo and mouse retina angiogenesis and evaluated the underlying mechanisms. APPROACH AND RESULTS: The EP3 receptor was highly expressed in the vasculature in both zebra fish embryos and murine fetal retinas...
March 2, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28249186/attention-deficit-hyperactivity-disorder-symptoms-and-stress-related-biomarkers
#18
S W N Vogel, D Bijlenga, J Verduijn, T I Bron, A T F Beekman, J J S Kooij, B W J H Penninx
OBJECTIVE: The current study examined whether (a) Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms were associated with dysregulation of stress-related mechanisms, and (b) whether ADHD symptoms interact with affective disorders in their association with dysregulated stress-related mechanisms. METHODS: Data were obtained from 2307 subjects participating in the Netherlands Study of Depression and Anxiety. Stress-related mechanisms were reflected by the following biomarkers: (1) hypothalamic-pituitary-adrenal axis indicators (salivary cortisol awakening curve, evening cortisol, cortisol suppression after a 0...
February 13, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28245757/the-role-of-stress-in-inflammatory-bowel-diseases
#19
Sgambato Dolores, Miranda Agnese, Ranaldo Rocco, Federico Alessandro, Romano Marco
BACKGROUND: Inflammatory bowel disease (IBD) is a multi-factorial systemic disorder which involves immune, genetic and environmental factors. Stress, in its various forms, plays an important role in gastrointestinal diseases and, in particular, in IBD. METHODS: Here, we focus on the environmental stressors in different aspects of IBD (pathogenesis, course and severity of disease) and, in particular, will evaluate the mechanisms by which they may influence IBD. RESULTS: The effect of stress on IBD might be mediated by autonomic nervous system and hypothalamic pituitary adrenal axis...
February 28, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28245725/brain-structural-changes-in-patients-in-the-early-stages-of-multiple-sclerosis-with-depression
#20
J I Rojas, F Sanchez, L Patrucco, J Miguez, C Besada, E Cristiano
Some studies suggest an inflammatory mechanism associated with the presence of depression in multiple sclerosis (MS); however, there is little data concerning these findings. The purpose of this study was to investigate the presence of brain structural changes in patients with MS and depression and to compare them with patients suffering from MS without depression and healthy controls. METHODS: A case-control study that included patients with relapsing-remitting MS (RRMS) defined by validated criteria, over 18 years of age, with less than three years from disease onset, EDSS ≤ 3, with no history of previous depression and under immunomodulatory treatment with interferon beta, if any...
March 1, 2017: Neurological Research
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