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Interferon gamma

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https://www.readbyqxmd.com/read/29471299/the-effect-of-allium-cepa-extract-on-lung-oxidant-antioxidant-and-immunological-biomarkers-in-ovalbumin-sensitized-rats
#1
Narges Marefati, Naeima Eftekhar, Mahsa Kaveh, Javad Boskabadi, Farimah Beheshti, Mohammad Hossein Boskabady
OBJECTIVES: To evaluate the effects of Allium cepa (A. cepa) on levels of oxidants, antioxidants and immunological markers in the broncho-alveolar lavage fluids in sensitized rats. MATERIALS AND METHODS: Oxidant-antioxidant markers and cytokines in BALF of control rats treated with saline (group C), ovalbumin-sensitized rats (group S), rats treated with 1.25 μg/ mL dexamethasone and three doses (35, 70 and 140 mg/kg/day) of A. cepa extract (S+AC) were investigated...
February 22, 2018: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/29468178/retrograde-interferon-gamma-signaling-induces-major-histocompatibility-class-i-expression-in-human-induced-pluripotent-stem-cell-derived-neurons
#2
Benjamin D S Clarkson, Misha S Patel, Reghann G LaFrance-Corey, Charles L Howe
Objective: Injury-associated axon-intrinsic signals are thought to underlie pathogenesis and progression in many neuroinflammatory and neurodegenerative diseases, including multiple sclerosis (MS). Retrograde interferon gamma (IFN γ ) signals are known to induce expression of major histocompatibility class I (MHC I) genes in murine axons, thereby increasing the susceptibility of these axons to attack by antigen-specific CD8+ T cells. We sought to determine whether the same is true in human neurons...
February 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29467021/conjunctival-transcriptome-profiling-of-solomon-islanders-with-active-trachoma-in-the-absence-of-chlamydia-trachomatis-infection
#3
Hristina Vasileva, Robert Butcher, Harry Pickering, Oliver Sokana, Kelvin Jack, Anthony W Solomon, Martin J Holland, Chrissy H Roberts
BACKGROUND: Clinical signs of active (inflammatory) trachoma are found in many children in the Solomon Islands, but the majority of these individuals have no serological evidence of previous infection with Chlamydia trachomatis. In Temotu and Rennell and Bellona provinces, ocular infections with C. trachomatis were seldom detected among children with active trachoma; a similar lack of association was seen between active trachoma and other common bacterial and viral causes of follicular conjunctivitis...
February 21, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29466462/reduced-nk-cell-ifn-%C3%AE-secretion-and-psychological-stress-are-independently-associated-with-herpes-zoster
#4
Choon Kwan Kim, Youn Mi Choi, Eunsin Bae, Mihn Sook Jue, Hyung Seok So, Eung-Soo Hwang
The pathogenesis of herpes zoster is closely linked to reduced varicella-zoster virus-specific cell-mediated immunity. However, little is known about the interplay between natural killer cells and psychological stress in the pathogenesis of herpes zoster. This study aimed to investigate possible associations among natural killer cells, T cells and psychological stress in herpes zoster. Interferon-gamma secretion from natural killer cell, psychological stress events, stress cognition scale scores and cytomegalovirus-specific cell-mediated immunity were compared between 44 patients with herpes zoster and 44 age- and gender-matched control subjects...
2018: PloS One
https://www.readbyqxmd.com/read/29463593/interleukin-33-signaling-restrains-sporadic-colon-cancer-in-an-interferon-gamma-dependent-manner
#5
Moritz F Eissmann, Christine Dijkstra, Merridee A Wouters, David Baloyan, Dmitri Mouradov, Paul M Nguyen, Mercedes Davalos-Salas, Tracy L Putoczki, Oliver M Sieber, John M Mariadason, Matthias Ernst, Frederick Masson
Interleukin 33 (IL33) is an inflammatory cytokine released during necrotic cell death. The epithelium and stroma of the intestine express large amounts of IL33 and its receptor St2. IL33 is therefore continuously released during homeostatic turnover of the intestinal mucosa. Although IL33 can prevent colon cancer associated with inflammatory colitis, the contribution of IL33 signaling to sporadic colon cancer remains unknown. Here, we utilized a mouse model of sporadic colon cancer to investigate the contribution of IL33 signaling to tumorigenesis in the absence of pre-existing inflammation...
February 20, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29463472/interferon-gamma-induces-reversible-metabolic-reprogramming-of-m1-macrophages-to-sustain-cell-viability-and-pro-inflammatory-activity
#6
Feilong Wang, Song Zhang, Ryounghoon Jeon, Ivan Vuckovic, Xintong Jiang, Amir Lerman, Clifford D Folmes, Petras D Dzeja, Joerg Herrmann
Classical activation of M1 macrophages with lipopolysaccharide (LPS) is associated with a metabolic switch from oxidative phosphorylation to glycolysis. However, the generalizability of such metabolic remodeling to other modes of M1 macrophage stimulation, e.g. type II interferons (IFNs) such as IFNγ, has remained unknown as has the functional significance of aerobic glycolysis during macrophage activation. Here we demonstrate that IFNγ induces a rapid activation of aerobic glycolysis followed by a reduction in oxidative phosphorylation in M1 macrophages...
February 13, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29462879/chondrocytes-contribute-to-alphaviral-disease-pathogenesis-as-a-source-of-virus-replication-and-soluble-factor-production
#7
Elisa X Y Lim, Aroon Supramaniam, Hayman Lui, Peta Coles, Wai Suet Lee, Xiang Liu, Penny A Rudd, Lara J Herrero
Arthritogenic alphavirus infections often result in debilitating musculoskeletal disorders that affect the joints, muscle, and bone. In order to evaluate the infection profile of primary human skeletal muscle and chondrocyte cells to Ross River virus (RRV) in vitro, cells were infected at a multiplicity of infection (MOI) of 1 over a period of two days. Viral titers were determined by plaque assay and cytokine expression by Bio-Plex® assays using the supernatants harvested. Gene expression studies were conducted using total RNA isolated from cells...
February 15, 2018: Viruses
https://www.readbyqxmd.com/read/29460140/sarcocystis-cymruensis-discovery-in-western-hemisphere-in-the-brown-rat-rattus-norvegicus-from-grenada-west-indies-redescription-molecular-characterization-and-transmission-to-ifn-%C3%AE-gene-knockout-mice-via-sporocysts-from-experimentally-infected-domestic-cat
#8
Fernando H Antunes Murata, Camila K Cerqueira-Cézar, Peter C Thompson, Keshaw Tiwari, Joseph D Mowery, Shiv K Verma, Benjamin M Rosenthal, Ravindra N Sharma, Jitender P Dubey
Rodents are intermediate hosts for many species of Sarcocystis. Little is known of Sarcocystis cymruensis that uses the Brown rat (Rattus norvegicus) as intermediate hosts and the domestic cat (Felis catus) as experimental definitive host. Here, we identified and described Sarcocystis cymruensis in naturally infected R. norvegicus from Grenada, West Indies. Rats (n = 167) were trapped in various locations in two parishes (St. George and St. David). Microscopic, thin (< 1 μm) walled, slender sarcocysts were found in 11 of 156 (7...
February 19, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29457983/antimycobacterial-effect-of-ifng-interferon-gamma-induced-autophagy-is-dependent-on-the-hmox1-heme-oxygenase-1-mediated-increase-in-the-intracellular-calcium-levels-and-modulation-of-ppp3-calcineurin-tfeb-transcription-factor-eb-axis
#9
Nisha Singh, Pallavi Kansal, Zeeshan Ahmad, Naveen Baid, Hariom Kushwaha, Neeraj Khatri, Ashwani Kumar
IFNG (interferon gamma)-induced autophagy plays an important role in the elimination of intracellular pathogens, such as Mycobacterium tuberculosis (Mtb). However, the signaling cascade that leads to the increase in autophagy flux in response to IFNG is poorly defined. Here, we demonstrate that HMOX1 (heme oxygenase 1)-generated carbon monoxide (CO) is required for the induction of autophagy and killing of Mtb residing in macrophages in response to immunomodulation by IFNG. Interestingly, IFNG exposure of macrophages induces an increase in intracellular calcium levels that is dependent on HMOX1 generated CO...
February 19, 2018: Autophagy
https://www.readbyqxmd.com/read/29456820/immunogenicity-of-heparin-binding-hemagglutinin-expressed-by-pichia-pastoris-gs115-strain
#10
Xindong Teng, Xiaoguang Chen, Ke Zhu, Hefei Xu
Objectives: Heparin-binding hemagglutinin (HBHA), a mycobacterial cell surface protein, mediates adhesion to nonphagocytic cells and the dissemination of Mycobacterium tuberculosis ( M. tuberculosis ) from the site of primary infection. Superior expression systems are required to obtain abundant M. tuberculosis proteins for the purpose of diagnosing M. tuberculosis infection or for the immunization. Here, HBHA was expressed by Pichia pastoris ( P. pastoris ) GS115 strain , and the immunogenicity of HBHA was evaluated...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29456507/the-effects-of-vitamin-d-supplementation-on-signaling-pathway-of-inflammation-and-oxidative-stress-in-diabetic-hemodialysis-a-randomized-double-blind-placebo-controlled-trial
#11
Hamed Haddad Kashani, Elahe Seyed Hosseini, Hossein Nikzad, Alireza Soleimani, Maryam Soleimani, Mohammad Reza Tamadon, Fariba Keneshlou, Zatollah Asemi
Objective: This study was carried out to determine the effects of vitamin D supplementation on signaling pathway of inflammation and oxidative stress in diabetic hemodialysis (HD) patients. Methods: This randomized double-blind placebo-controlled clinical trial was conducted among 60 diabetic HD patients. Subjects were randomly allocated into two groups to intake either vitamin D supplements at a dosage of 50,000 IU ( n = 30) or placebo ( n = 30) every 2 weeks for 12 weeks. Gene expression of inflammatory cytokines and biomarkers of oxidative stress were assessed in peripheral blood mononuclear cells (PBMCs) of diabetic HD patients with RT-PCR method...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29456196/improvement-in-exophiala-dermatitidis-airway-persistence-and-respiratory-decline-in-response-to-interferon-gamma-therapy-in-a-patient-with-cystic-fibrosis
#12
Christopher P Eades, Darius P H Armstrong-James, Jimstan Periselneris, Andrew Jones, Nicholas Simmonds, Peter Kelleher, Anand Shah
No abstract text is available yet for this article.
February 15, 2018: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29455951/sex-hormone-contributes-to-sexually-dimorphic-susceptibility-in-cvb3-induced-viral-myocarditis-via-modulating-ifn-%C3%AE-nk-cell-production
#13
Nannan Zhou, Yan Yue, Sidong Xiong
BACKGROUND: Viral myocarditis is a widespread cardiac disease associated with inflammation and myocardial injury and is predominantly caused by coxsackievirus B3 (CVB3) infection in humans as well as in mice. CVB3-induced myocarditis shows sexually dimorphic sensitivity and is more prevalent in male mice. Our previous studies showed that natural killer (NK) cells played an indispensable role in CVB3-induced myocarditis, and female mice exhibited less pathological cardiac interferon gamma (IFN-γ)+ NK cell infiltration than did male mice...
January 6, 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29455109/dysregulation-of-jak-stat-genes-by-vasoactive-intestinal-peptide-vip-in-salmonella-infected-monocytes-may-inhibit-its-therapeutic-potential-in-human-sepsis
#14
Hiba Ibrahim, Basim Askar, Paul Barrow, Neil Foster
Murine/LPS models of Gram negative sepsis indicate that vasoactive intestinal peptide (VIP) has therapeutic potential. We investigated the unknown effect of VIP on JAK/STAT proteins and genes in human monocytes infected with Salmonella Typhimurium 14028. S. Typhimurium 14028 increased expression of both IL-6 receptor (IL-6R) and interferon gamma receptor 1 (IFNγR1) on monocytes but co-culture of infected monocytes with VIP (10-7 M) only decreased expression of IFNγR1 (P < 0.05). In contrast, S. Typhimurium 14028 infection or co-culture with VIP had no effect on IL-10 receptor expression on the monocyte surface...
February 15, 2018: Cytokine
https://www.readbyqxmd.com/read/29454325/latent-tuberculosis-infection-and-associated-risk-indicators-in-pastoral-communities-in-southern-ethiopia-a-community-based-cross-sectional-study
#15
Takele Teklu, Mengistu Legesse, Girmay Medhin, Aboma Zewude, Mahlet Chanyalew, Martha Zewdie, Biniam Wondale, Milkessa Haile-Mariam, Rembert Pieper, Gobena Ameni
BACKGROUND: Research pertaining to the community-based prevalence of latent tuberculosis infection (LTBI) is important to understand the magnitude of this infection. This study was conducted to estimate LTBI prevalence and to identify associated risk factors in the Omo Zone of Southern Ethiopia. METHODS: A community-based cross-sectional study was conducted in six South Omo districts from May 2015 to February 2016. The sample size was allocated to the study districts proportional to their population sizes...
February 17, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29453596/effectiveness-of-the-sesquiterpene-%C3%AE-bisabolol-in-dogs-with-naturally-acquired-canine-leishmaniosis-an-exploratory-clinical-trial
#16
V Corpas-López, G Merino-Espinosa, C Acedo-Sánchez, V Díaz-Sáez, M C Navarro-Moll, F Morillas-Márquez, J Martín-Sánchez
The use of natural products is a promising approach for treating visceral leishmaniosis. (-)-α-Bisabolol is a sesquiterpene that have been proved active in vivo on Leishmania infantum-infected mice without showing toxicity. A single-centre, parallel-group, randomized, exploratory study was designed to assess its efficacy in a canine leishmaniosis model involving naturally infected dogs. In this clinical trial, 12 dogs were allocated into two groups and were treated with either meglumine antimoniate (100 mg/kg) through subcutaneous route or (-)-α-bisabolol (30 mg/kg) through oral route for two treatment series of 30 days, separated by a 30-day interval...
February 16, 2018: Veterinary Research Communications
https://www.readbyqxmd.com/read/29450147/lemongrass-cymbopogon-flexuosus-essential-oil-demonstrated-anti-inflammatory-effect-in-pre-inflamed-human-dermal-fibroblasts
#17
Xuesheng Han, Tory L Parker
Lemongrass ( Cymbopogon flexuosus ) essential oil (LEO), which has citral as its main component, has exhibited anti-inflammatory effect in both animal and human cells. In this study, we evaluated the anti-inflammatory activity of a commercially available LEO in pre-inflamed human dermal fibroblasts. We first studied the impact of LEO on 17 protein biomarkers that are critically associated with inflammation and tissue remodeling. LEO significantly inhibited production of the inflammatory biomarkers vascular cell adhesion molecule 1 (VCAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell alpha chemoattractant (I-TAC), and monokine induced by gamma interferon (MIG); decreased levels of the tissue remodeling biomarkers collagen-I and III, epidermal growth factor receptor (EGFR), and plasminogen activator inhibitor (PAI-1); and inhibited the immunomodulatory biomarker macrophage colony-stimulating factor (M-CSF)...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29450144/anti-inflammatory-tissue-remodeling-immunomodulatory-and-anticancer-activities-of-oregano-origanum-vulgare-essential-oil-in-a-human-skin-disease-model
#18
Xuesheng Han, Tory L Parker
The use of oregano ( Origanum vulgare ) essential oil (OEO) has become popular in skin care products. However, scientific research regarding its effects on human skin cells is scarce. In this study, we investigated the biological activity of a commercially available OEO, which is high in carvacrol content, in a human skin cell disease model. OEO induced marked antiproliferative effects and significantly inhibited several inflammatory biomarkers, including monocyte chemoattractant protein 1 (MCP-1), vascular cell adhesion molecule 1 (VCAM-1), intracellular cell adhesion molecule 1 (ICAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell alpha chemoattractant (I-TAC), and monokine induced by gamma interferon (MIG)...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29450142/arborvitae-thuja-plicata-essential-oil-significantly-inhibited-critical-inflammation-and-tissue-remodeling-related-proteins-and-genes-in-human-dermal-fibroblasts
#19
Xuesheng Han, Tory L Parker
Arborvitae ( Thuja plicata ) essential oil (AEO) is becoming increasingly popular in skincare, although its biological activity in human skin cells has not been investigated. Therefore, we sought to study AEO's effect on 17 important protein biomarkers that are closely related to inflammation and tissue remodeling by using a pre-inflamed human dermal fibroblast culture model. AEO significantly inhibited the expression of vascular cell adhesion molecule 1 (VCAM-1), intracellular cell adhesion molecule 1 (ICAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell chemoattractant (I-TAC), monokine induced by interferon gamma (MIG), and macrophage colony-stimulating factor (M-CSF)...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29450138/biological-activities-of-frankincense-essential-oil-in-human-dermal-fibroblasts
#20
Xuesheng Han, Damian Rodriguez, Tory L Parker
Although frankincense essential oil (FREO) has become increasingly popular in skin care, research on its biological activities in human skin cells is scarce, if not completely absent. In the current study, we explored the biological activities of FREO in pre-inflamed human dermal fibroblasts by analyzing the levels of 17 important protein biomarkers pertinent to inflammation and tissue remodeling. FREO exhibited robust anti-proliferative activity in these skin cells. It also significantly inhibited collagen III, interferon gamma-induced protein 10, and intracellular cell adhesion molecule 1...
June 2017: Biochimie Open
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