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Immunopharmacology and Immunotoxicology

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https://www.readbyqxmd.com/read/29219636/physiological-effects-of-brominated-flame-retardants-on-nc-nga-mice
#1
Michitaka Tanaka, Ken-Ichiro Inoue, Akinori Shimada, Hirohisa Takano
PURPOSE: Brominated flame retardants (BFRs) are used as an additive or reactive components in various materials. Regarding their health concerns, their immunotoxicity have not been clarified yet. MATERIALS AND METHODS: In the current study, we examined the effects of systemic exposure to two types of BFRs, DE71 and DE79, on pathophysiologic traits of murine atopic dermatitis (AD). Male NC/Nga mice were repeatedly injected intraperitoneally with DE71 and DE79 and/or mite allergen (Dermatophagoides pteronyssinus: Dp) into their right ears...
December 8, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29210292/the-role-of-lpd-nanoparticles-containing-recombinant-major-surface-glycoprotein-of-leishmania-rgp63-in-protection-against-leishmaniasis-in-murine-model
#2
Hengameh Firouzmand, Mehrnosh Sahranavard, Ali Badiee, Ali Khamesipour, Seyedeh Hoda Alavizadeh, Afshin Samiei, Dina Soroush, Masoumeh Tavassoti Kheiri, Fereidoun Mahboudi, Mahmoud Reza Jaafari
CONTEXT: Leishmaniasis is a major public health problem. Despite numerous attempts, yet there is no effective vaccine against human leishmaniasis, mainly due to a lack of an effective vaccine delivery system as well as adjuvant. OBJECTIVE(S): The aim of this study was to evaluate the ability of recombinant glycoprotein 63 (rgp63) as a model of Leishmania antigen, entrapped in liposome-polycation-DNA (LPD) complexes nanoparticles in inducing cell mediated immune (CMI) response and protecting against L...
December 6, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29199487/2-4-dihydroxy-3-4-6-trimethoxychalcone-from-chromolaena-odorata-possesses-anti-inflammatory-effects-via-inhibition-of-nf-%C3%AE%C2%BAb-and-p38-mapk-in-lipopolysaccharide-activated-raw-264-7-macrophages
#3
Rana Dhar, Rungruedee Kimseng, Ratchanaporn Chokchaisiri, Poonsit Hiransai, Tanyarath Utaipan, Apichart Suksamrarn, Warangkana Chunglok
CONTEXT: Immune dysregulation has been implicated in the pathogenesis of many diseases. Macrophages play a crucial role contributing to the onset, progression, and resolution of inflammation. Macrophage inflammatory mediators are of considerable interest as potential targets to treat inflammatory diseases. OBJECTIVE: The present study was conducted to elucidate the anti-inflammatory mechanism of 2',4-dihydroxy-3',4',6'-trimethoxychalcone (1), the major chalcone isolated from Chromolaena odorata (L...
December 4, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29192804/hecogenin-exhibits-anti-arthritic-activity-in-rats-through-suppression-of-pro-inflammatory-cytokines-in-complete-freund-s-adjuvant-induced-arthritis
#4
Deepa K Ingawale, Snehal S Patel
Hecogenin is a steroidal sapogenin isolated from the leaves of Agave genus species that plays an important role in the treatment of a variety of inflammatory diseases. The aim of the present study was to evaluate the anti-arthritic activity of hecogenin in Complete Freund's adjuvant-induced arthritis in rats. The hecogenin (40 µl of 50 µg/kg, orally) and hecogenin + fluticasone (40 µl of 25 µg/kg, each, orally) was tested against Complete Freund's adjuvant-induced arthritis in rats by evaluating various parameters such as paw volume, arthritic score, joint diameter, spleen weight, thymus weight, haematological and biochemical parameters and pro-inflammatory cytokines...
December 1, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29172841/anti-inflammatory-effects-of-artemisia-scoparia-and-its-active-constituent-3-5-dicaffeoyl-epi-quinic-acid-against-activated-mast-cells
#5
Sun-Young Nam, Na-Ra Han, So-Young Rah, Youngwan Seo, Hyung-Min Kim, Hyun-Ja Jeong
OBJECTIVES: Artemisia scoparia Waldst. et Kit. (AS) has been used to treat inflammation, urticaria and hepatitis. However, the scientific studies of AS and its active compound for inflammatory reactions in activated human mast cell line, HMC-1 cells have not yet been elucidated. MATERIALS AND METHODS: Here, we isolated 3,5-dicaffeoyl-epi-quinic acid (DEQA) from AS butanol fraction. The anti-inflammatory effect of AS and its new active compound, DEQA was examined in HMC-1 cells by studying the following markers: phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-induced thymic stromal lymphopoietin (TSLP), tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6 secretion and mRNA expression by ELISA and RT-PCR, respectively...
November 27, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29103340/immunogenicity-of-branched-polyethylene-glycol-modified-interferon-alpha
#6
Weidong Zhou, Daru Lu, Xiaojin Liao, Lu Zhuang, Li Sun
AIM: To assess the immunogenicity of Peginterferon alpha-2 b(Pegberon) and its effect on the efficacy and safety in phase III clinical trial, by comparing it with the control drug Pegasys. METHODS: 770 patients were recruited in total. 509 were treated with Pegberon plus ribavirin and 261 were treated with Pegasys plus ribavirin. After treatment of 12 and 24 weeks, plasma samples were collected from individual patients for detecting the anti-therapeutic antibodies (ATA) and hepatitis C RNA(HCV RNA), to evaluate the production of antibodies and their adverse effect on the efficacy and safety of the treatments...
November 6, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29094629/infectious-diseases-and-immunological-markers-associated-with-patients-with-non-hodgkin-lymphoma-treated-with-rituximab
#7
Kleber Jordão de Souza, Rodrigo Sala Ferro, Luiz Euribel Prestes-Carneiro, Paula Andreia Martins Carrilho, Dewton de Moraes Vasconcelos
BACKGROUND: The use of rituximab (RTX) is increasing, even in developing countries. It has become the first-line therapy or adjuvant to chemotherapy (CHOP; cyclophosphamide, hydroxydaunorubicin, oncovin and prednisone) for various diseases, including B cell lymphoma and autoimmune diseases. AIM: We describe the infectious diseases and immunological markers associated with RTX treatment of patients with non-Hodgkin lymphoma (NHL). METHODS: Serum immunoglobulins were determined before and after intravenous immunoglobulin (IVIg) administration...
November 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29094617/effects-of-barium-chloride-adsorbed-to-polyethylene-glycol-peg-microspheres-on-co-culture-of-human-blood-mononuclear-cell-and-breast-cancer-cell-lines-mcf-7
#8
Fabiana Helen da Silva, Aliny Aparecida Lopes Ribeiro, Alessandra Lima Deluque, Aron Carlos de Melo Cotrim, Patrícia Gelli Feres de Marchi, Eduardo Luzía França, Adenilda Cristina Honorio-França
This study investigated the effects of BaCl2 adsorbed to polyethylene glycol (PEG) microspheres on human blood mononuclear cells (MN) co-cultured with breast cancer cell lines (MCF-7). The MCF-7 cells were obtained from the American Type Culture Collection and the blood mononuclear (MN) cells from volunteer donors. MN cells, MCF-7 cells and their co-culture (MN and MCF-7 cells) were pre-incubated for 24 h with or without 25 and 1000 pg L(-1) BaCl2 (Ba25 and Ba1000), PEG microspheres or 25 and 1000 pg L(-1) BaCl2 adsorbed to PEG microspheres (PEG-Ba25 and PEG-Ba1000)...
November 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29077528/effects-of-recombinant-agrocybe-aegerita-lectin-as-an-immunoadjuvant-on-immune-responses
#9
Li-Bao Ma, Bao-Yang Xu, Min Huang, Qi-Gai He
CONTEXT: Accumulated evidence has indicated that recombinant Agrocybe aegerita lectin (AAL) possesses immunoadjuvant activity to enhance antigen-specific immune responses. However, the mechanism of how AAL regulates immune response remains poorly defined. AIM: This study is aimed to reveal the mechanism of AAL's immunoadjuvant activity. METHODS: In this study, AAL alone or combined with inactivated avian influenza virus H9N2 was immunized to mice and the transcriptome profile of immunized mice was analyzed...
October 27, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29077519/improvement-of-icaritin-on-hematopoietic-function-in-cyclophosphamide-induced-myelosuppression-mice
#10
Chenghong Sun, Jian Yang, Lihong Pan, Na Guo, Bingbing Li, Jingchun Yao, Mingzhi Wang, Changpeng Qi, Guimin Zhang, Zhong Liu
CONTEXT: Icaritin (ICT), an intestinal metabolite of prenylflavonoids from Herba Epimedii, has been known to regulate many immune processes. But there are little studies of ICT on hematopoietic function. OBJECTIVE: We aimed to investigate the improvement of ICT on hematopoietic function in cyclophosphamide (CTX)-induced myelosuppression mice. METHODS: Mice were given CTX (50 mg/kg) by i.p. for five days to produce bone marrow depression model...
October 27, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28975862/evaluation-of-anti-sepsis-activity-by-compounds-with-high-affinity-to-lipid-a-from-huanglianjiedu-decoction
#11
Yubin Xu, Song Guo, Guirong Chen, Mingbo Zhang, Xu Zhang, Deqiang Dou
CONTEXT: HuanglianJiedu decoction (HJD) is a classic prescription for heat-clearing away and detoxifying, which is used for the clinical treatment of sepsis, due to sepsis refers to the systemic inflammatory response induced by infection in western medicine, and infection belongs to the category of poison-heat syndrome in traditional Chinese medicine. OBJECTIVES: Previous study had elucidated the effective components from HJD with high affinity to lipid A, which can generate the release of pro-inflammatory-cytokines, resulting in sepsis...
October 4, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28952817/artemisinin-therapeutic-efficacy-in-the-experimental-model-of-multiple-sclerosis
#12
Mohammad Reza Khakzad, Ali Ganji, Vahid Ariabod, Iman Farahani
CONTEXT: The immune system through T-helper 1 (Th1) and Th17 cells play a critical role in the pathogenesis of experimental autoimmune encephalomyelitis (EAE), whereas the Th2 responses inhibit myelin degeneration. Artemisinin, as an anti-malaria as its agent, has been used widely in the treatment of malaria, shifts the lymphocyte responses from Th1 to Th2. OBJECTIVE: In this study, we have investigated the therapeutic effects of artemisinin on the EAE treatment...
September 27, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28948855/the-gastroprotective-effect-of-nobiletin-against-ethanol-induced-acute-gastric-lesions-in-mice-impact-on-oxidative-stress-and-inflammation
#13
Weifeng Li, Xiumei Wang, Wenbing Zhi, Hailin Zhang, Zehong He, Yu Wang, Fang Liu, Xiaofeng Niu, Xuemei Zhang
CONTEXT: Gastric ulcer is a common gastrointestinal disorder with increasing incidence and prevalence attributed to loss of balance between aggressive and protective factors. Nobiletin (NOB), a major component of polymethoxyflavones in citrus fruits, has a broad spectrum of health beneficial properties including anti-inflammatory and anti-tumor activities. Although NOB was originally shown to possess anti-inflammatory activity, its effects on gastric ulcer were rarely explored previously...
September 26, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28929835/dab389il-2-recombinant-fusion-toxin-effect-on-lymphocyte-and-macrophage-producing-cytokine-subpopulation-cells-in-experimentally-induced-demyelinating-disease-in-mice
#14
Mahendra K Bhopale, Brendan Hilliard, Cris S Constantinescu, S Michael Phillips, Abdolmohamad Rostami
CONTEXT: We have reported previously that DAB389IL-2 recombinant fusion toxin targets IL-2R bearing CD4(+) cells, and suppresses demyelinating disease in acute (A) - and chronic (C) - experimental autoimmune encephalomyelitis (EAE) animal models of multiple sclerosis. OBJECTIVES: The present study was undertaken to investigate the effect of DAB389IL-2 treatment on various cytokine-secreting cell populations in A-EAE and C-EAE mice. MATERIALS AND METHODS: The effects of DAB389IL-2 at doses of 200-, 800-, or 1600 kU administered i...
September 20, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28879797/amorfrutin-a-inhibits-tnf-%C3%AE-induced-jak-stat-signaling-cell-survival-and-proliferation-of-human-cancer-cells
#15
Chunliu Mi, Juan Ma, Ke Si Wang, Zhe Wang, Ming Yue Li, Jun Bo Li, Xuezheng Li, Lian Xun Piao, Guang Hua Xu, Xuejun Jin
CONTEXT: Amorfrutin A is a natural product isolated from the fruits of Amorpha fruticosa L. and has been shown to exhibit multiple bioeffector functions. In the present study, we investigated whether amorfrutin A exerts anticancer effects by inhibiting STAT3 activation in cervical cancer cells. OBJECTIVE: To investigate the effectiveness of amorfrutin A as a treatment of cancer, and determine the underlying pharmacological mechanism of action. MATERIALS AND METHODS: HeLa, SK-Hep1, MDA-MB-231 and HCT116 cells were used in this study...
September 7, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28872362/ferulic-acid-but-not-alpha-lipoic-acid-effectively-protects-thp-1-derived-macrophages-from-oxidant-and-pro-inflammatory-response-to-lps
#16
Izabela Szulc-Kielbik, Michal Kielbik, Magdalena Klink
OBJECTIVE: The diet supplementation with antioxidants-rich products is a way to protect people from free radical-induced diseases. In this study, we compare the anti-inflammatory/antioxidant activity of two compounds available as supplements: alpha lipoic acid (ALA) and ferulic acid (FA). MATERIALS AND METHODS: The free radical scavenging capacity of ALA and FA in the cell free system was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Anti-inflammatory activity of both compounds was determined, in vitro, on THP-1 derived macrophages model, both resting (not stimulated) and inflammatory (lipopolysaccharide- or tumor-necrosis factor α-stimulated)...
September 5, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28828896/toxicological-effects-of-trichloroethylene-exposure-on-immune-disorders
#17
Josue D Ordaz, Nur P Damayanti, Joseph M K Irudayaraj
Trichloroethylene (TCE) is one of the most common ground water contaminants in USA. Even though recent regulation mandates restricted utilization of TCE, its use is not completely prohibited, especially in industrial and manufacturing processes. The risk of TCE on human health is an ongoing field of study and its implications on certain diseases such as cancer has been recognized and well-documented. However, the link between TCE and immune disorders is still an under-studied area. Studies on the risk of TCE on the immune system is usually focused on certain immune class disorders, but consensus on the impact of TCE on the immune system has not been established...
August 22, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28762847/inhibition-of-nlrp3-inflammasome-a-new-protective-mechanism-of-cinnamaldehyde-in-endotoxin-poisoning-of-mice
#18
Feng Xu, Feng Wang, Taoqun Wen, Wentao Sang, Dejian Wang, Nan Zeng
CONTEXT: Cinnamaldehyde (CA) has a protective effect in endotoxin poisoning of mice, but there is no direct evidence for the protective effect of CA through inhibition of NLRP3 inflammasome activation in endotoxin poisoning of mice. OBJECTIVE: We aimed to investigate the protective mechanism of CA in endotoxin poisoned mice through NLRP3 inflammasome. MATERIALS AND METHODS: First, we evaluated the anti-inflammatory effect of CA in phorbol-12-myristate acetate-differentiated THP-1 cells through the NLRP3 inflammasome...
August 1, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28555525/hepatoprotective-effect-of-parthenolide-in-rat-model-of-nonalcoholic-fatty-liver-disease
#19
Majid Bahabadi, Adel Mohammadalipour, Jamshid Karimi, Nasrin Sheikh, Ghasem Solghi, Farjam Goudarzi, Mohammad Hashemnia, Iraj Khodadadi
CONTEXT: The active ingredients of traditional medical herbs have been the focus of scientific interests. OBJECTIVE: This study was designed to explore the mechanisms of actions of parthenolide on nonalcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS: Thirty-five male Wistar rats were fed high-fat diet (HFD) for eight weeks with or without an intraperitoneal injection of parthenolide to develop NAFLD. Liver triacylglycerol (TG), total antioxidant capacity (TAC), total oxidative status (TOS), thiobarbituric acid reactant substances (TBARs), total thiol groups and tumor necrosis factor alpha (TNF-α) and cytochrome P4502E1 (CYP2E1) levels as well as liver ALT, AST and catalase activities were determined...
August 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28555511/mitigation-of-inflammation-using-the-intravenous-anesthetic-dexmedetomidine-in-the-mouse-air-pouch-model
#20
Takefumi Inada, Chisato Sumi, Kiichi Hirota, Koh Shingu, Akihisa Okamoto, Yoshiyuki Matsuo, Takahiko Kamibayashi
Dexmedetomidine, an α2-adrenergic/imidazoline receptor agonist, is a widely used intravenous anesthetic. Its primary current usage is for sedation of patients in the intensive care unit. The mouse air pouch model is versatile in studying the anti-inflammatory effect of a drug on a local inflammation, which is induced by a variety of substances. In the present study, using the carrageenan-induced air pouch inflammation model, we tested whether dexmedetomidine mitigates inflammation occurring locally in the mouse air pouch...
August 2017: Immunopharmacology and Immunotoxicology
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