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https://www.readbyqxmd.com/read/28332697/alpha-1-antitrypsin-inhibits-rankl-induced-osteoclast-formation-and-functions
#1
Mohammad Ahsanul Akbar, David Nardo, Mong-Jen Chen, Ahmed S Elshikha, Rubina Ahamed, Eslam M Elsayed, Claire Bigot, Lexie Shannon Holliday, Sihong Song
Osteoporosis is a global public health problem affecting more than 200 million people worldwide. We previously showed that treatment with alpha-1 antitrypsin (AAT), a multifunctional protein with anti-inflammatory properties, mitigated bone loss in an ovariectomized mouse model. However, the underlying mechanisms of the protective effect of AAT on bone tissue are largely unknown. In this study, we investigated the effect of AAT on osteoclast formation and function in vitro. Our results showed that AAT dose-dependently inhibited the formation of RANKL (receptor activator of nuclear factor κB ligand) induced osteoclasts derived from mouse bone marrow macrophages/monocyte (BMM) lineage cells and the murine macrophage cell line, RAW 264...
March 21, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28332235/toll-like-receptor-and-related-cytokine-mrna-expression-in-bovine-corpora-lutea-during-the-oestrous-cycle-and-pregnancy
#2
J E Gadsby, A M Tyson Nipper, H A Faircloth, M D'Annibale-Tolhurst, J Chang, P W Farin, I M Sheldon, D H Poole
Improving our understanding of the mechanisms controlling the corpus luteum (CL) and its role in regulating the reproductive cycle should lead to improvements in the sustainability of today's global animal industry. The corpus luteum (CL) is a transient endocrine organ composed of a heterogeneous mixture steroidogenic, endothelial and immune cells, and it is becoming clear that immune mechanisms play a key role in CL regulation especially in luteolysis. Toll-like receptors (TLR) mediate innate immune mechanisms via the production of pro-inflammatory cytokines, especially within various tissues, although the role of TLR within CL remains unknown...
March 22, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28326063/lactobacillus-reuteri-surface-mucus-adhesins-upregulate-inflammatory-responses-through-interactions-with-innate-c-type-lectin-receptors
#3
Krisztián P Bene, Devon W Kavanaugh, Charlotte Leclaire, Allan P Gunning, Donald A MacKenzie, Alexandra Wittmann, Ian D Young, Norihito Kawasaki, Eva Rajnavolgyi, Nathalie Juge
The vertebrate gut symbiont Lactobacillus reuteri exhibits strain-specific adhesion and health-promoting properties. Here, we investigated the role of the mucus adhesins, CmbA and MUB, upon interaction of L. reuteri ATCC PTA 6475 and ATCC 53608 strains with human monocyte-derived dendritic cells (moDCs). We showed that mucus adhesins increased the capacity of L. reuteri strains to interact with moDCs and promoted phagocytosis. Our data also indicated that mucus adhesins mediate anti- and pro-inflammatory effects by the induction of interleukin-10 (IL-10), tumor necrosis factor alpha (TNF-α), IL-1β, IL-6, and IL-12 cytokines...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28323882/mir-181-interacts-with-signaling-adaptor-molecule-denn-madd-and-enhances-tnf-induced-cell-death
#4
Samira Ghorbani, Farideh Talebi, Sedigheh Ghasemi, Ali Jahanbazi Jahan Abad, Mohammed Vojgani, Farshid Noorbakhsh
MicroRNAs are small noncoding RNAs, which regulate the expression of protein coding transcripts through mRNA degradation or translational inhibition. Numerous reports have highlighted the role of miRNAs in regulating cell death pathways including the expression of genes involved in the induction of apoptosis. Tumor necrosis factor alpha (TNF-α) is a proinflammatory cytokine which can send pro-death signals through its receptor TNFR1. Diverse adaptor molecules including DENN/MADD adaptor protein have been shown to modulate TNF-α pro-death signaling via recruitment of MAP kinases to TNFR1 and activation of pro-survival NFκB signaling...
2017: PloS One
https://www.readbyqxmd.com/read/28323513/transmembrane-tnf-dependent-uptake-of-anti-tnf-antibodies
#5
Arun Deora, Subramanya Hegde, Jacqueline Lee, Chee-Ho Choi, Qing Chang, Cheryl Lee, Lucia Eaton, Hua Tang, Dongdong Wang, David Lee, Mark Michalak, Medha Tomlinson, Qingfeng Tao, Nidhi Gaur, Bohdan Harvey, Shaun McLoughlin, Boris Labkovsky, Tariq Ghayur
TNF-alpha (TNF), a pro-inflammatory cytokine is synthesized as a 26 kDa protein, anchors in the plasma membrane as transmembrane TNF (TmTNF), and is subjected to proteolysis by the TNF-alpha converting enzyme (TACE) to release the 15 kDa form of soluble TNF (sTNF). TmTNF and sTNF interact with two distinct receptors, TNF-R1 (p55) and TNF-R2 (p75), to mediate the multiple biological effects of TNF described to date. Several anti-TNF biologics that bind to both forms of TNF and block their interactions with the TNF receptors are now approved for the treatment of a variety of immune-mediated diseases...
March 21, 2017: MAbs
https://www.readbyqxmd.com/read/28320596/phillyrin-lowers-body-weight-in-obese-mice-via-the-modulation-of-ppar-beta-delta-angptl-4-pathway
#6
Hong-Bo Xiao, Guo-Guang Sui, Xiang-Yang Lu
OBJECTIVE: Previous investigations have shown that the peroxisome proliferator activated receptor beta/delta (PPAR<beta>/<delta>)-angiopoietin-like protein 4 (ANGPTL4) pathways may be a new pharmacologic target for treatment of obesity. The present study was conducted to test the effect of phillyrin, ‎a glucoside, on obesity in mice. METHOD: Fifty mice were randomly divided into 5 groups (n=10): control group (C57BL/6J mice), obese mice group, two groups of obese mice treated with phillyrin (15 or 45mg/kg/day), one group of obese mice treated with PPAR<beta>/<delta> agonist GW0742 (3mg/kg/day)...
March 17, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28319850/methylation-of-hpa-axis-related-genes-in-men-with-hypersexual-disorder
#7
Jussi Jokinen, Adrian E Boström, Andreas Chatzittofis, Diana M Ciuculete, Katarina Görts Öberg, John N Flanagan, Stefan Arver, Helgi B Schiöth
Hypersexual Disorder (HD) defined as non-paraphilic sexual desire disorder with components of compulsivity, impulsivity and behavioral addiction, and proposed as a diagnosis in the DSM 5, shares some overlapping features with substance use disorder including common neurotransmitter systems and dysregulated hypothalamic-pituitary-adrenal (HPA) axis function. In this study, comprising 67 HD male patients and 39 male healthy volunteers, we aimed to identify HPA-axis coupled CpG-sites, in which modifications of the epigenetic profile are associated with hypersexuality...
March 10, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28317386/hepatoprotective-effect-of-blocking-n-methyl-d-aspartate-receptors-in-male-albino-rats-exposed-to-acute-and-repeated-restraint-stress
#8
Shaimaa Nasr Amin, Ahmed Amro El-Aidi, Maha Zickri, Laila Ahmed Rashed, Sherif Sabry Hassan
Stress affects multiple organs in the body in addition to the brain including the liver. We aimed to assess the effects of blocking N-methyl-D-aspartate (NMDA) glutamate receptors by memantine on the liver in acute and repeated restraint stress. Forty two male albino rats divided into seven groups; control, Acute restraint stress (ARS), ARS+memantine, repeated restraint stress, repeated restraint +memantine and positive control groups. We measured serum iron, zinc, alanine transferase and Aspartame transferase, hepatic malondialdehyde, tumor necrosis factor-alpha (TNF-α), glutathione peroxidase, Superoxide dismutase, metallothionein content, zinc transporter ZRT/IRT-like Protein 14 mRNA expression, hepcidin expression...
March 18, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28298070/pulmonary-injury-associated-with-radiation-therapy-assessment-complications-and-therapeutic-targets
#9
REVIEW
Rasmi Rajan Radha, Guruvayoorappan Chandrasekharan
Pulmonary injury is more common in patients undergoing radiation therapy for lungs and other thoracic malignancies. Recently with the use of most-advanced technologies powerful doses of radiation can be delivered directly to tumor site with exquisite precision. The awareness of technical and clinical parameters that influence the chance of radiation induced lung injury is important to guide patient selection and toxicity minimization strategies. At the cellular level, radiation activates free radical production, leading to DNA damage, apoptosis, cell cycle changes, and reduced cell survival...
March 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28292683/lower-inflammatory-markers-in-women-with-antenatal-depression-brings-the-m1-m2-balance-into-focus-from-a-new-direction
#10
Åsa Edvinsson, Emma Bränn, Charlotte Hellgren, Eva Freyhult, Richard White, Masood Kamali-Moghaddam, Jocelien Olivier, Jonas Bergquist, Adrian E Boström, Helgi B Schiöth, Alkistis Skalkidou, Janet L Cunningham, Inger Sundström-Poromaa
BACKGROUND: Antenatal depression and use of serotonin reuptake inhibitors (SSRI) in pregnancy have both been associated with an increased risk of poor pregnancy outcomes, such as preterm birth and impaired fetal growth. While the underlying biological pathways for these complications are poorly understood, it has been hypothesized that inflammation may be a common physiological pathway. The aim of the present study was to assess peripheral inflammatory markers in healthy women, women with antenatal depression, and in women using SSRI during pregnancy...
February 28, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28282423/age-related-macular-degeneration-phenotypes-are-associated-with-increased-tumor-necrosis-alpha-and-subretinal-immune-cells-in-aged-cxcr5-knockout-mice
#11
Hu Huang, Ying Liu, Lei Wang, Wen Li
The role of chemokine receptor in age-related macular degeneration (AMD) remains elusive. The objective of this study is to investigate the role of chemokine receptor Cxcr5 in the pathogenesis of AMD. Cxcr5 gene expression levels (mRNA and protein) are higher in the retina and retinal pigment epithelium (RPE) of aged C57BL/6 wild type mice than younger ones. Vascular and glial cells express Cxcr5 and its ligand Cxcl13 in mouse retina. Aged Cxcr5 knockout (-/-) mice develop both early and late AMD-like pathological features...
2017: PloS One
https://www.readbyqxmd.com/read/28277444/bilateral-retrobulbar-optic-neuropathy-associated-with-golimumab
#12
Marta de Frutos-Lezaun, Aritz Bidaguren, Patricia de la Riva, Carlos F Meneses, Javier Olascoaga
We report the first documented case of retrobulbar optic neuropathy associated with golimumab. A 48-year-old man was admitted with a 3-week history of progressive visual loss of his left eye. He had received a second infusion of golimumab for ankylosing spondylitis 10 days before admission. A magnetic resonance imaging scan showed enhancement of both optic nerves and visual evoked potentials were consistent with demyelinating bilateral optic neuropathy, although visual acuity drop in the right eye could not be determined because of deep amblyopia...
March 9, 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28275132/impact-of-polyunsaturated-and-saturated-fat-overfeeding-on-the-dna-methylation-pattern-in-human-adipose-tissue-a-randomized-controlled-trial
#13
Alexander Perfilyev, Ingrid Dahlman, Linn Gillberg, Fredrik Rosqvist, David Iggman, Petr Volkov, Emma Nilsson, Ulf Risérus, Charlotte Ling
Background: Dietary fat composition can affect ectopic lipid accumulation and, thereby, insulin resistance. Diets that are high in saturated fatty acids (SFAs) or polyunsaturated fatty acids (PUFAs) have different metabolic responses.Objective: We investigated whether the epigenome of human adipose tissue is affected differently by dietary fat composition and general overfeeding in a randomized trial.Design: We studied the effects of 7 wk of excessive SFA (n = 17) or PUFA (n = 14) intake (+750 kcal/d) on the DNA methylation of ∼450,000 sites in human subcutaneous adipose tissue...
March 8, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28274152/restraint-stress-differentially-regulates-inflammation-and-glutamate-receptor-gene-expression-in-the-hippocampus-of-c57bl-6-and-balb-c-mice
#14
Monica Sathyanesan, Jacob M Haiar, Michael J Watt, Samuel S Newton
The inbred mouse strains, C57BL/6 and BALB/c have been used widely in preclinical psychiatric research. The differences in stress susceptibility of available strains has provided a useful platform to test pharmacological agents and behavioral responses. Previous brain gene profiling efforts have indicated that the inflammation and immune response gene pathway is the predominant gene network in the differential stress response of BALB/c and C57BL/6 mice. The implication is that a composite stress paradigm that includes a sequence of extended, varied and unpredictable stressors induces inflammation-related genes in the hippocampus...
March 8, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28267517/effects-of-cultured-cordyceps-mycelia-polysaccharide-a-on-tumor-neurosis-factor-%C3%AE-induced-hepatocyte-injury-with-mitochondrial-abnormality
#15
Huiling Tang, Weikun Wei, Wang Wang, Zhengqi Zha, Ting Li, Zhijie Zhang, Chen Luo, Hongping Yin, Fengjie Huang, Ying Wang
Cordyceps sinensis mycelia polysaccharide A (CPS-A), was isolated from cultured Cordyceps mycelia by 65% alcohol extraction and ion-exchange column chromatography. The molecular weight of CPS-A was 1.2×10(4)Da and the backbone was mainly composed of (1→2)-linked β-d-mannopyranose, (1→2,4)-linked β-d-mannopyranose and (1→4)-linked α-d-glucopyranose with terminal β-d-mannopyranose and α-d-glucopyranose residues. CPS-A played a protective role against TNF-α induced mitochondria injury in L02 cells via up-regulation of mitofusin 2, peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), and membrane potential...
May 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28261001/effects-of-cranberry-vaccinum-macrocarpon-supplementation-on-iron-status-and-inflammatory-markers-in-rowers
#16
Anna Skarpańska-Stejnborn, Piotr Basta, Jerzy Trzeciak, Alicja Michalska, M Emin Kafkas, Donata Woitas-Ślubowska
BACKGROUND: The aim of this study was to analyze the effect of supplementation with cranberry (Vaccinum macrocarpon) on the levels of pro-inflammatory cytokines, hepcidin and selected markers of iron metabolism in rowers subjected to exhaustive exercise. METHODS: This double-blind study included 16 members of the Polish Rowing Team. The subjects were randomly assigned to the supplemented group (n = 9), receiving 1200 mg of cranberry extract for 6 weeks, or to the placebo group (n = 7)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28248857/correlations-of-cyp2c9-3-cyp2d6-10-cyp3a5-3-gene-polymorphisms-with-efficacy-of-etanercept-treatment-for-patients-with-ankylosing-spondylitis-a-case-control-study
#17
Yuan-Yuan Chen
BACKGROUND: The tumor necrosis factor alpha (TNF-α) inhibitor etanercept has been proven to be effective in the treatment of ankylosing spondylitis (AS), while genetic polymorphism may affect drug metabolism or drug receptor, resulting in interindividual variability in drug disposition and efficacy. The purpose of this study is to investigate the correlations between CYP2C9*3/CYP2D6*10/CYP3A5*3 gene polymorphisms and the efficacy of etanercept treatment for patients with AS. METHODS: From March 2012 to June 2015, 312 AS patients (174 males and 138 females, mean age: 35...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28248533/the-effect-of-apelin-on-the-functions-of-peritoneal-macrophages
#18
V N Izgüt-Uysal, B Gemici, I Birsen, N Acar, I Üstünel
Apelin, the endogenous ligand of the G protein-coupled receptor (APJ), plays an important role in the physiological response to homeostatic perturbations. The aim of the present study was to investigate the effect of apelin on the functions of peritoneal macrophages. A double staining immunofluorescence technique was used to determine the expression of APJ in peritoneal macrophages. Rat peritoneal macrophages were randomly divided into three groups: control, apelin and apelin+F13A. A significant decrease in phagocytic and chemotactic activity of peritoneal macrophages resulted when the macrophages were incubated with [Pry(1)]-Apelin-13 (10 ng/ml)...
February 28, 2017: Physiological Research
https://www.readbyqxmd.com/read/28236848/the-fibrinolytic-system-a-new-target-for-treatment-of-depression-with-psychedelics
#19
R D Idell, G Florova, A A Komissarov, S Shetty, R B S Girard, S Idell
Current understanding of the neurobiology of depression has grown over the past few years beyond the traditional monoamine theory of depression to include chronic stress, inflammation and disrupted synaptic plasticity. Tissue plasminogen activator (tPA) is a key factor that not only promotes fibrinolysis via the activation of plasminogen, but also contributes to regulation of synaptic plasticity and neurogenesis through plasmin-mediated activation of a probrain derived neurotrophic factor (BDNF) to mature BDNF...
March 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28219695/inhibitory-effects-of-dynorphin-3-14-on-the-lipopolysaccharide-induced-toll-like-receptor-4-signalling-pathway
#20
Siti Sarah Fazalul Rahiman, Michael Morgan, Paul Gray, Paul Nicholas Shaw, Peter John Cabot
Dynorphin 1-17 (DYN 1-17) is biotransformed rapidly to a range of fragments in rodent inflamed tissue with dynorphin 3-14 (DYN 3-14) being the most stable and prevalent. DYN 1-17 has been shown previously to be involved in the regulation of inflammatory response following tissue injury, in which the biotransformation fragments of DYN 1-17 may possess similar features. This study investigated the effects of DYN 3-14 on lipopolysaccharide (LPS)-induced nuclear factor-kappaB/p65 (NF-κB/p65) nuclear translocation and the release of pro-inflammatory cytokines interleukin-1beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) in differentiated THP-1 cells...
February 20, 2017: Peptides
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