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https://www.readbyqxmd.com/read/28806642/circulating-follicular-helper-t-cells-presented-distinctively-different-responses-toward-bacterial-antigens-in-primary-biliary-cholangitis
#1
Zun-Qiang Zhou, Da-Nian Tong, Jiao Guan, Mei-Fang Li, Qi-Ming Feng, Min-Jie Zhou, Zheng-Yun Zhang
Primary biliary cholangitis (PBC) is a chronic and progressive cholestatic liver disease with unknown causes. The initiation of PBC is associated with bacterial infections and abnormal immune correlates, such as the presence of self-reactive anti-mitochondrial antibodies and shifted balance of T cell subsets. In particular, the CD4(+)CXCR5(+) follicular helper T (Tfh) cells are highly activated in PBC patients and are significantly associated with PBC severity, but the underlying reasons are unknown. In this study, we found that the circulating CD4(+)CXCR5(+) T cells were enriched with the interferon (IFN)-γ-secreting Th1-subtype and the interleukin (IL)-17-secreting Th17-subtype, but not the IL-4-secreting Th2 subtype...
August 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28806219/selective-activation-of-basal-forebrain-cholinergic-neurons-attenuates-polymicrobial-sepsis-induced-inflammation-via-the-cholinergic-anti-inflammatory-pathway
#2
Qian Zhai, Dengming Lai, Ping Cui, Rui Zhou, Qixing Chen, Jinchao Hou, Yunting Su, Libiao Pan, Hui Ye, Jing-Wei Zhao, Xiangming Fang
OBJECTIVES: Basal forebrain cholinergic neurons are proposed as a major neuromodulatory system in inflammatory modulation. However, the function of basal forebrain cholinergic neurons in sepsis is unknown, and the neural pathways underlying cholinergic anti-inflammation remain unexplored. DESIGN: Animal research. SETTING: University research laboratory. SUBJECTS: Male wild-type C57BL/6 mice and ChAT-ChR2-EYFP (ChAT) transgenic mice...
August 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28805233/analytic-and-dynamic-secretory-profile-of-patient-derived-cytokine-induced-killer-cells
#3
Giulia Mesiano, Roberta Zini, Giulia Montagner, Nicoletta Bianchi, Rossella Manfredini, Antonella Chillemi, Massimo Aglietta, Giovanni Grignani, Ilaria Lampronti, Erika Fiorino, Fabio Malavasi, Dario Sangiolo, Roberto Gambari, Davide Ferrari
Adoptive immunotherapy with Cytokine Induced Killer (CIK) cells has shown antitumor activity against several kinds of cancers in preclinical models and clinical trials. CIK cells are a subset of ex vivo expanded T lymphocytes with T-NK phenotype and MHC-unrestricted antitumor activity. Literature provides scanty information on cytokines, chemokines and growth factors secreted by CIK cells. Therefore, we investigated the secretory profile of CIK cells generated from tumor patients. The secretome analysis was performed at specific time points (day 1, day 14 and day 21) of CIK cells expansion...
August 9, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28804688/pivotal-regulators-of-tissue-homeostasis-and-cancer-macrophages
#4
REVIEW
Yulei Chen, Xiaobo Zhang
Macrophages are an essential component of innate immunity and play a vital role in inflammation and host defense. Based on immunological responses, the macrophages are classified into "activated" macrophage (M1 macrophages) participating in the responses of type I helper T (Th1) cells to pathogens and "alternatively activated" macrophages (M2 macrophages) in response to interleukin (IL)-4 and IL-13. In this review, we discuss the origin, classification and function of macrophages. We also discuss the mechanisms underlying polarization of different macrophage subtypes, including transcriptional, epigenetic and post-transcriptional regulation...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28804463/effect-of-oral-docosahexaenoic-acid-dha-supplementation-on-dha-levels-and-omega-3-index-in-red-blood-cell-membranes-of-breast-cancer-patients
#5
Alessio Molfino, Maria I Amabile, Sara Mazzucco, Gianni Biolo, Alessio Farcomeni, Cesarina Ramaccini, Simonetta Antonaroli, Massimo Monti, Maurizio Muscaritoli
Rationale: Docosahexaenoic acid (DHA) in cell membrane may influence breast cancer (BC) patients' prognosis, affecting tumor cells sensitivity to chemo- and radio-therapy and likely modulating inflammation. The possibility of identifying BC patients presenting with low DHA levels and/or low ability of DHA incorporation into cell membrane might help to treat this condition. Methods: We enrolled BC patients and healthy controls, recording their seafood dietary intake. DHA in form of algal oil was administered for 10 consecutive days (2 g/day)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28803045/discovery-of-novel-3-hydroxyalkoxy-2-alkylchromen-4-one-analogs-as-interleukin-5-inhibitors
#6
Pulla Reddy Boggu, Eeda Venkateswararao, Manoj Manickam, Youngsoo Kim, Sang-Hun Jung
A series of novel chromen-4-one analogs 9a-d and 10a-u was designed, synthesized and evaluated for their IL-5 inhibitory activity. Most of the chromen-4-one analogs showed strong inhibitory activity in low micro molar potency. Among them, 5-(cyclohexylmethoxy)-3-(3-hydroxypropoxy)-2-isopropyl-4H-chromen-4-one (10t, 90.0% inhibition at 30 μM, IC50 = 5.5 μM, CLogP = 4.76887) and 2-cyclohexyl-5-(cyclohexylmethoxy)-3-(3-hydroxypropoxy)-4H-chromen-4-one (10u, 95.5% inhibition at 30 μM, IC50 = 3.0 μM, CLogP = 5...
July 29, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28802865/interleukin-13-interleukin-4-receptor-pathway-is-crucial-for-production-of-sd-a-sialomucin-in-mouse-small-intestinal-mucosa-by-nippostrongylus-brasiliensis-infection
#7
Daigo Tsubokawa, Kenji Ishiwata, Yukinobu Goso, Takeshi Nakamura, Takeshi Hatta, Kazuhiko Ishihara, Hirotaka Kanuka, Naotoshi Tsuji
Mucin is a major component of mucus in gastrointestinal mucosa. Increase of specific sialomucins having Sd(a) blood group antigen, NeuAcα2-3(GalNAcβ1-4)Galβ1-4GlcNAcβ-, is considered to be associated with expulsion of the parasitic intestinal nematode Nippostrongylus brasiliensis. In this study, we examined the relationship between interleukin (IL)-13 pathway and expression of Sd(a)-sialomucins in small intestinal mucosa with N. brasiliensis infection. Nematode infection induced marked increases in small intestinal mucins that reacted with anti-Sd(a) antibody in wild type (wt) mice...
August 9, 2017: Parasitology International
https://www.readbyqxmd.com/read/28801026/quadruple-immunotherapy-of-bacillus-calmette-gu%C3%A3-rin-interferon-interleukin-2-and-granulocyte-macrophage-colony-stimulating-factor-as-salvage-therapy-for-non-muscle-invasive-bladder-cancer
#8
Ryan L Steinberg, Kenneth G Nepple, Kyla N Velaer, Lewis J Thomas, Michael A O'Donnell
BACKGROUND: Bacillus Calmette-Guérin (BCG) is the most effective initial intravesical therapy for high-grade non-muscle invasive bladder cancer, but many patients still fail. Combination intravesical BCG and interferon (IFN) will salvage some patients but results remain suboptimal. OBJECTIVE: We hypothesized that further immunostimulation with intravesical interleukin-2 and subcutaneous granulocyte-macrophage colony-stimulating factor may improve response to intravesical BCG and IFN in patient with prior BCG failure(s)...
August 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28798686/strong-association-between-plasma-dipeptidyl-peptidase-4-activity-and-impaired-cognitive-function-in-elderly-population-with-normal-glucose-tolerance
#9
Bo Chen, Tianpeng Zheng, Linyuan Qin, Xueping Hu, Xiaoxi Zhang, Yihong Liu, Hongbo Liu, Shenghua Qin, Gang Li, Qinghua Li
Objective: Inflammation, oxidative stress, and decreased glucagon-like peptide-1 (GLP-1) are risk factors for cognitive impairment. Dipeptidyl peptidase-4 (DPP4) was identified as a novel adipokine capable of enhancing these risk factors. Hence, we investigated the relationship between plasma DPP4 activity and impaired cognitive function in elderly Chinese population with normal glucose tolerance (NGT). Methods: We performed a cross-sectional study using data from 1229 elderly participants (60 years or older) in Guilin...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28798141/characterization-of-macrophage-polarization-states-using-combined-measurement-of-2-deoxyglucose-and-glutamine-accumulation-implications-for-imaging-of-atherosclerosis
#10
Sina Tavakoli, Kevin Downs, John D Short, Huynh Nga Nguyen, Yanlai Lai, Paul A Jerabek, Beth Goins, Jakub Toczek, Mehran M Sadeghi, Reto Asmis
OBJECTIVE: Despite the early promising results of (18)F-fluorodeoxyglucose positron emission tomography for assessment of vessel wall inflammation, its accuracy in prospective identification of vulnerable plaques has remained limited. Additionally, previous studies have indicated that (18)F-fluorodeoxyglucose uptake alone may not allow for accurate identification of specific macrophage activation states. We aimed to determine whether combined measurement of glucose and glutamine accumulation-the 2 most important bioenergetic substrates for macrophages-improves the distinction of macrophage inflammatory states and can be utilized to image atherosclerosis...
August 10, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28797929/antiallergic-effect-of-fisetin-on-ige-mediated-mast-cell-activation-in-vitro-and-on-passive-cutaneous-anaphylaxis-pca
#11
Woo-Ri Jo, Hye-Jin Park
Fisetin (3,7,3',4'-tetrahydroxyflavone), a naturally occurring bioactive flavonoid, has been shown to inhibit inflammation. However, little is known about the effect of fisetin on immunoglobulin E (IgE)-mediated allergic responses. In this study, the effect of fisetin on rat basophilic leukemia (RBL-2H3) cell-mediated allergic reactions was investigated. Fisetin inhibited β-hexosaminidase release and decreased the level of interleukin-4 and tumor necrosis factor-α mRNA in IgE/antigen (IgE/Ag)-stimulated RBL-2H3 cells...
June 30, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28797835/tumor-necrosis-factor-%C3%AE-receptor-1-contributes-to-ethanol-induced-vascular-reactive-oxygen-species-generation-and-hypertension
#12
Janaina A Simplicio, Natália A Gonzaga, Marcelo A Nakashima, Bruno S De Martinis, Thiago M Cunha, Luis F Tirapelli, Carlos R Tirapelli
We evaluated the contribution of tumor necrosis factor-α receptor 1 (TNFR1) to ethanol-induced hypertension and vascular oxidative stress and the possible role of perivascular adipose tissue (PVAT) in such responses. Male C57BL/6 wild-type (WT) or TNFR1-deficient mice (TNFR1(-/-)) were treated with ethanol (20% vol/vol) for 12 weeks. Ethanol induced an increase in blood pressure in WT mice and TNFR1(-/-) at 4 and 5 weeks of treatment, respectively. Treatment with ethanol increased tumor necrosis factor-α and interleukin-6 levels in aortas with or without PVAT (PVAT+ and PVAT-, respectively) from WT mice, but not TNFR1(-/-)...
July 22, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28797292/the-ethanol-extract-of-aquilariae-lignum-ameliorates-hippocampal-oxidative-stress-in-a-repeated-restraint-stress-mouse-model
#13
Hyun-Yong Lee, Jin-Seok Lee, Hyeong-Geug Kim, Won-Yong Kim, Seung-Bae Lee, Yung-Hyun Choi, Chang-Gue Son
BACKGROUND: Chronic stress contributes to the development of brain disorders, such as neurodegenerative and psychiatric diseases. Oxidative damage is well known as a causative factor for pathogenic process in brain tissues. The aim of this study is to evaluate the neuroprotective effect of a 30% ethanol extract of Aquilariae Lignum (ALE) in repeated stress-induced hippocampal oxidative injury. METHODS: Fifty BALB/c male mice (12 weeks old) were randomly divided into five groups (n = 10)...
August 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28797051/prenylated-flavonoid-morusin-protects-against-tnbs-induced-colitis-in-rats
#14
Zora Vochyánová, Marie Pokorná, Dominik Rotrekl, Václav Smékal, Petr Fictum, Pavel Suchý, Jan Gajdziok, Karel Šmejkal, Jan Hošek
Morusin is a prenylated flavonoid isolated from the root bark of Morus alba. Many studies have shown the ability of flavonoids to act as anti-inflammatory agents. The aim of this study was to evaluate the effect of morusin on experimentally colitis induced by 2,4,6-trinitrobenzensulfonic acid in Wistar rats and to compare it with sulfasalazine, a drug conventionally used in the treatment of inflammatory bowel disease. Morusin was administered by gavage at doses of 12.5, 25, or 50 mg/kg/day for five days. The colonic tissue was evaluated macroscopically, histologically, and by performing immunodetection and zymographic analysis to determine the levels of antioxidant enzymes [superoxide dismutase (SOD) and catalase (CAT)], interleukin (IL)-1β, and transforming growth factor (TGF)-β1 and the activities of matrix metalloproteinases (MMP) 2 and 9...
2017: PloS One
https://www.readbyqxmd.com/read/28796897/hookworm-excretory-secretory-products-modulate-immune-responses-to-heterologous-and-species-specific-antigens
#15
Nicholas Diliani, Blaise Dondji
Approximately one billion people are currently infected with hookworm. Despite its high prevalence and the concomitant immune suppression seen in infected individuals, little research has been done on the mechanism of immunosuppression by hookworm. Our study focused on characterizing mechanisms utilized by hookworm to suppress the host immune response. Splenocytes and draining lymph node cells from mice injected with hookworm excretory/secretory (ES) proteins showed decreased proliferation in response to both heterologous and species-specific antigens while also having increased nitric oxide secretion...
August 10, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28796316/effects-of-tocilizumab-on-neutrophil-function-and-kinetics
#16
Laurence S C Lok, Neda Farahi, Jatinder K Juss, Chrystalla Loutsios, Chandra K Solanki, A Michael Peters, Francis Donaldson, Benjamin Porter-Brown, Edwin R Chilvers
BACKGROUND: Decreases in circulating neutrophils (polymorphonuclear leukocytes, PMNs) have been reported in patients treated with the anti-interleukin-6 receptor (IL-6R) antibody tocilizumab (TCZ); the mechanism for this is unclear. We hypothesize that TCZ reduces circulating neutrophils by affecting margination and / or bone marrow trafficking without affecting neutrophil function or apoptosis. MATERIALS AND METHODS: 18 healthy subjects were randomized to single intravenous dose of TCZ 8 mg/kg (n = 12) or placebo (n = 6) on day 0...
August 10, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28795668/-immune-intervention-of-human-umbilical-cord-mesenchymal-stem-cells-on-sepsis-rats
#17
Hewei Zhang, Xiaoxu Cui, Tao Fang, Qiang Fu
OBJECTIVE: To investigate the effect of human umbilical cord mesenchymal stem cells (UC-MSCs) on immune cells and inflammatory factors in septic rats. METHODS: 184 male Sprague-Dawley (SD) rats were divided into normal control group (n = 8), sham operation group (n = 48), sepsis model group (n = 64), and UC-MSCs treatment group (n = 64). An animal model of sepsis was produced by cecal ligation and puncture (CLP). In the UC-MSCs treatment group 1 mL UC-MSCs (2×10(6)/mL) were injected intraperitoneally at 1 hour after the model establishment; the sham operation group and the sepsis model group were given the same amount of saline...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28795664/-roles-of-myd88-and-trif-in-cardiac-dysfunction-during-sepsis
#18
Yun Zhu, Ming Zhang, Minzhi Ouyang, Dan Zhou, Ling Li
OBJECTIVE: To investigate the roles of myeloid differentiation factor 88 (MyD88) and TIR domain-containing adaptor inducing interferon-β (TRIF) in sepsis-induced myocardial dysfunction, and to analyze whether strain rate (SR) can be early sensitive evaluation for septic heart failure. METHODS: Sixty-four healthy male C57BL/6 mice were divided into four groups by random number table (n = 16 in each group): sham group, cecum ligation and puncture (CLP)-induced sepsis model group, anti-MyD88 group and anti-TRIF group...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28795275/effects-of-photobiomodulation-therapy-and-topical-non-steroidal-anti-inflammatory-drug-on-skeletal-muscle-injury-induced-by-contusion-in-rats-part-2-biochemical-aspects
#19
Shaiane Silva Tomazoni, Lúcio Frigo, Tereza Cristina Dos Reis Ferreira, Heliodora Leão Casalechi, Simone Teixeira, Patrícia de Almeida, Marcelo Nicolas Muscara, Rodrigo Labat Marcos, Andrey Jorge Serra, Paulo de Tarso Camillo de Carvalho, Ernesto Cesar Pinto Leal-Junior
Muscle injuries trigger an inflammatory process, releasing important biochemical markers for tissue regeneration. The use of non-steroidal anti-inflammatory drugs (NSAIDs) is the treatment of choice to promote pain relief due to muscle injury. NSAIDs exhibit several adverse effects and their efficacy is questionable. Photobiomodulation therapy (PBMT) has been demonstrated to effectively modulate inflammation induced from musculoskeletal disorders and may be used as an alternative to NSAIDs. Here, we assessed and compared the effects of different doses of PBMT and topical NSAIDs on biochemical parameters during an acute inflammatory process triggered by a controlled model of contusion-induced musculoskeletal injury in rats...
August 9, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28795258/lipopolysaccharide-aggravated-doi-induced-tourette-syndrome-elaboration-for-recurrence-of-tourette-syndrome
#20
Long Hongyan, Si Zhenyang, Wang Chunyan, Pan Qingqing
Tourette syndrome (TS) is a neurological disorder characterized by highest familial recurrence rate among neuropsychiatric diseases with complicated inheritance. Recurrence of Tourette syndrome was frequently observed in clinical. Unexpectedly, the mechanism of recurrence of Tourette syndrome was failure to elucidate. Here, we first shown that lipopolysaccharide(LPS) may played an important role in the recurrence of Tourette syndrome. The TS model in rats was induced by DOI (the selective 5-HT2A/2C agonist 1-(2, 5-dimethoxy-4-iodophenyl) -2- aminopropane)...
August 9, 2017: Metabolic Brain Disease
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