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https://www.readbyqxmd.com/read/28749412/multi-targeting-andrographolide-a-novel-nf-%C3%AE%C2%BAb-inhibitor-as-a-potential-therapeutic-agent-for-stroke
#1
REVIEW
Chih-Hao Yang, Ting-Lin Yen, Chia-Yuan Hsu, Philip-Aloysius Thomas, Joen-Rong Sheu, Thanasekaran Jayakumar
A key focus in the field of drug discovery has been motivated by the neuroprotection of natural compounds. Cerebral ischemia is a multifaceted pathological process with a series of mechanisms, and a perspective for the development of neuroprotectants from traditional herbal medicine or natural products is a promising treatment for this disease. Natural compounds with the effects of anti-oxidation, anti-inflammation, anti-apoptosis, and neurofunctional regulation exhibit therapeutic effects on experimental ischemic brain injury...
July 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28749205/esophageal-endoscopic-submucosal-dissection-using-sodium-hyaluronate-is-safe-and-effective
#2
Chihiro Iwashita, Hirotsugu Sakamoto, Yoshimasa Miura, Satoshi Shinozaki, Yoshikazu Hayashi, Yuji Ino, Hiroyuki Osawa, Mio Tamba, Kohei Morita, Alan Kawarai Lefor, Hironori Yamamoto
BACKGROUND/AIMS: A submucosal cushion of sodium hyaluronate facilitates gastric and colorectal endoscopic submucosal dissection (ESD). However, few studies have evaluated the utility of sodium hyaluronate for ESD of esophageal lesions. The aim of this study is to evaluate the utility and safety of sodium hyaluronate for ESD of superficial esophageal squamous cell neoplasms (ESCN). MATERIAL AND METHODS: We retrospectively reviewed 111 ESCN in 86 patients treated by ESD between September 2007 and April 2013...
July 27, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28748446/selenium-protects-against-lead-induced-apoptosis-via-endoplasmic-reticulum-stress-in-chicken-kidneys
#3
Xiaoyu Wang, Yang An, Wanying Jiao, Zhongyuan Zhang, Hui Han, Xianhong Gu, Xiaohua Teng
Lead (Pb) is a toxic heavy metal and can harm organisms by inducing apoptosis. Selenium (Se), an essential trace element for humans and animals, can alleviate heavy metal toxicity. The aim of our study is to investigate alleviative effect of Se on Pb-induced apoptosis via endoplasmic reticulum (ER) stress in chicken kidneys. One hundred and eighty male chickens were randomly divided into four groups at 7 days of age and were fed with commercial diet (containing 0.49 mg/kg Se) and drinking water, Na2SeO3-added commercial diet (containing 1 mg/kg Se) and drinking water, the commercial diet and (CH3OO)2Pb-added drinking water (containing 350 mg/L Pb), and Na2SeO3-added commercial diet (containing 1 mg/kg Se) and (CH3OO)2Pb-added drinking water (containing 350 mg/L Pb), respectively...
July 26, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28747868/protective-effect-of-momordica-charantia-water-extract-against-liver-injury-in-restraint-stressed-mice-and-the-underlying-mechanism
#4
Yuanyuan Deng, Qin Tang, Yan Zhang, Ruifen Zhang, Zhencheng Wei, Xiaojun Tang, Mingwei Zhang
Background: Momordica charantia is used in China for its jianghuo (heat-clearing and detoxifying) effects. The concept of shanghuo (the antonym of jianghuo, excessive internal heat) in traditional Chinese medicine is considered a type of stress response of the body. The stress process involves internal organs, especially the liver. Objective: We hypothesized that Momordica charantia water extract (MWE) has a hepatoprotective effect and can protect the body from stress. The aim of this study was to investigate the possible effects of MWE against liver injury in restraint-stressed mice...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28747866/polysaccharide-from-wheat-bran-induces-cytokine-expression-via-the-toll-like-receptor-4-mediated-p38-mapk-signaling-pathway-and-prevents-cyclophosphamide-induced-immunosuppression-in-mice
#5
Ting Shen, Gongcheng Wang, Long You, Liang Zhang, Haiwei Ren, Weicheng Hu, Qian Qiang, Xinfeng Wang, Lilian Ji, Zhengzhong Gu, Xiangxiang Zhao
Wheat bran-derived polysaccharides have attracted particular attention due to their immunomodulatory effects. However, the molecular mechanisms underlying their functions are poorly understood. The current study was designed to examine the effect of wheat bran polysaccharide (WBP) on RAW 264.7 cells and the underlying signaling pathways, which have not been explored. In addition, we also investigated the immuno-enhancement effects of WBP on cyclophosphamide (CTX)-induced immunosuppression in mice. WBP significantly increased the concentrations of intracellular nitric oxide (NO) and cytokines such as prostaglandin E2 (PGE2) and tumor necrosis factor-α (TNF-α) in RAW 264...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28747341/arginase1-deficiency-in-monocytes-macrophages-upregulates-inducible-nitric-oxide-synthase-to-promote-cutaneous-contact-hypersensitivity
#6
Jutamas Suwanpradid, Michael Shih, Lauren Pontius, Bin Yang, Anastasiya Birukova, Emma Guttman-Yassky, David L Corcoran, Loretta G Que, Robert M Tighe, Amanda S MacLeod
The innate immune components that modulate allergic contact hypersensitivity (CHS) responses are poorly defined. Using human skin from contact dermatitis patients and a mouse model of CHS, we find that hapten allergens disrupt the Arginase1 (Arg1) and inducible NO synthase (iNOS) dynamic in monocytes/macrophages (mono/MΦ), which renders those cells ineffectual in suppressing skin inflammation. Mice lacking Arg1 in MΦ develop increased CHS characterized by elevated ear thickening, mono/MΦ-dominated dermal inflammation, and increased iNOS and IL-6 expression compared with control mice...
July 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28747201/intravenous-superoxide-dismutase-as-a-protective-agent-to-prevent-impairment-of-lung-function-induced-by-high-tidal-volume-ventilation
#7
Nan-Chun Wu, Fan-Ting Liao, Hao-Min Cheng, Shih-Hsien Sung, Yu-Chun Yang, Jiun-Jr Wang
BACKGROUND: Positive-pressure mechanical ventilation is essential in assisting patients with respiratory failure in the intensive care unit and facilitating oxygenation in the operating room. However, it was also recognized as a primary factor leading to hospital-acquired pulmonary dysfunction, in which pulmonary oxidative stress and lung inflammation had been known to play important roles. Cu/Zn superoxide dismutase (SOD) is an important antioxidant, and possesses anti-inflammatory capacity...
July 26, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28746839/depletion-of-5-hydroxy-triptamine-5-ht-affects-the-antidepressant-like-effect-of-neuronal-nitric-oxide-synthase-inhibitor-in-mice
#8
Vanessa Marques da Silva Leal, Vivian Taciany Bonassoli, Lígia Mendes Soares, Humberto Milani, Rúbia M Weffort de Oliveira
Clinical and experimental evidence indicates that nitric oxide (NO) is involved in the genesis of depression as well as in antidepressant drug effects. Inhibitors of nitric oxide synthases (NOS) exert antidepressant-like effect in several animal models, but also interfere with the locomotor activity. The involvement of different isoforms of NOS in the antidepressant-like effects is not clearly established. The objective of this study was to investigate the effects of acute or repeated administration of selective inhibitors of neuronal NOS (nNOS) and induced NOS (iNOS), 7 nitroindazole (7NI) and 1400W, respectively, in mice subjected to open field (OF) and forced swim test (FST)...
July 23, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28744810/kr%C3%A3-ppel-like-factor-4-regulates-the-expression-of-inducible-nitric-oxide-synthase-induced-by-tnf-%C3%AE-in-human-fibroblast-like-synoviocyte-mh7a-cells
#9
Xuanrong Mo, Jie Chen, Xinjuan Wang, Zhenyu Pan, Yuping Ke, Zhidong Zhou, Jiangwen Xie, Guoju Lv, Xinjing Luo
Krüppel-like factor 4 (KLF4), a zinc finger transcription factor, has been implicated in the inflammation mediated by macrophages and endothelial cells by regulating the expression of inflammatory mediators. Here, we investigated whether KLF4 affects the expression of inducible nitric oxide synthase (iNOS), an important inflammatory mediator, in the human RA fibroblast-like synovial cell line MH7A. A pcDNA3.1-KLF4 plasmid or short interfering RNA KLF4 was transfected into MH7A cells, and the iNOS expression and nitric oxide (NO) production were analyzed by quantitative PCR, immunoblotting, and nitrite measurement...
July 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28744771/anti-inflammatory-effects-of-stearidonic-acid-mediated-by-suppression-of-nf-%C3%AE%C2%BAb-and-map-kinase-pathways-in-macrophages
#10
Jeehye Sung, Heemang Jeon, In-Hwan Kim, Heon Sang Jeong, Junsoo Lee
Stearidonic acid (SDA, 18:4n-3) is an omega-3 polyunsaturated fatty acid present in oils derived from plants of the Boraginaceae family. In this study, we determined the anti-inflammatory effects of SDA isolated from echium oil on lipopolysaccharide (LPS)-induced inflammatory responses in RAW 264.7 macrophages. SDA significantly downregulated the levels of the inducible nitric oxide synthase (iNOS) protein, thereby suppressing the production of nitric oxide (NO) in LPS-stimulated RAW 264.7 cells. In addition, SDA inhibited the nuclear translocation and promoter activity of nuclear factor κB (NFκB) and the phosphorylation of mitogen-activated protein kinases (MAPK) such as extracellular signal regulated kinase 1/2, c-jun N terminal kinase, and p38 in LPS-stimulated RAW 264...
July 25, 2017: Lipids
https://www.readbyqxmd.com/read/28743626/the-roles-of-nf-%C3%AE%C2%BAb-and-ros-in-regulation-of-pro-inflammatory-mediators-of-inflammation-induction-in-lps-stimulated-zebrafish-embryos
#11
Eun-Yi Ko, Su-Hyeon Cho, Seung Hae Kwon, Chi-Yong Eom, Myeong Seon Jeong, WonWoo Lee, Seo-Young Kim, Soo-Jin Heo, Ginnae Ahn, Kang Pa Lee, You-Jin Jeon, Kil-Nam Kim
In this study, the roles of reactive oxygen species (ROS) and NF-κB on inflammation induction in lipopolysaccharide (LPS)-stimulated zebrafish embryos were evaluated using N-acetyl-l-cysteine (NAC) and pyrrolidine dithiocarbamate (PDTC), specific inhibitors of ROS and NF-κB, respectively. LPS-stimulated zebrafish embryos showed increasing production of NO and ROS and expression of iNOS and COX-2 protein, compared to a control group without LPS. However, NAC significantly inhibited production of NO and ROS and markedly suppressed expression of iNOS and COX-2 protein in LPS-stimulated zebrafish embryos...
July 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28743082/characterization-and-evaluation-of-nanoencapsulated-diethylcarbamazine-in-model-of-acute-hepatic-inflammation
#12
Gabriel Barros Rodrigues, Elquio Eleamen Oliveira, Francisco Jaime Bezerra Mendonça Junior, Laise Aline Martins Dos Santos, Wilma Helena de Oliveira, Maria Eduarda Rocha de França, Deniele Bezerra Lós, Brennda Martins Gabínio, Fábia Cristiane Melo Leite de Lira, Christina Alves Peixoto
Previous studies from our laboratory have demonstrated that Diethylcarbamazine (DEC) is a potent anti-inflammatory drug. The aim of the present study was to characterize the nanoencapsulation of DEC and to evaluate its effectiveness in a model of inflammation for the first time. C57BL/6 mice were divided into six groups: 1) Control; 2) Carbon tetrachloride (CCl4); 3) DEC 25mg/kg+CCl4; 4) DEC 50mg/kg+CCl4; 5) DEC-NANO 05mg/kg+CCl4 and 6) DEC-NANO 12.5mg/kg+CCl4. Liver fragments were stained with hematoxylin-eosin, and processed for Western blot, ELISA and immunohistochemistry...
July 22, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28742266/p-coumaric-acid-a-dietary-polyphenol-ameliorates-inflammation-and-curtails-cartilage-and-bone-erosion-in-the-rheumatoid-arthritis-rat-model
#13
Manoj Kumar Neog, Samuel Joshua Pragasam, Moorthy Krishnan, Mahaboobkhan Rasool
This study was designed to explore the underlying mechanism of p-coumaric acid (CA), a dietary polyphenol in adjuvant-induced arthritis (AIA) rat model with reference to synovitis and osteoclastogenesis. Celecoxib (COX-2 selective inhibitor) (5 mg/kg b.wt) was used as a reference drug. CA remarkably suppressed the paw edema, body weight loss and inflammatory cytokine and chemokine levels (TNF-α, IL-1β, IL-6, and MCP-1) in serum and ankle joint of arthritic rats. Consistently, CA reduced the expression of osteoclastogenic factors (RANKL and TRAP), pro-inflammatory cytokines (TNF-α, IL-1β, IL-6, and IL-17), and inflammatory enzymes (iNOS and COX-2) in arthritic rats...
July 25, 2017: BioFactors
https://www.readbyqxmd.com/read/28741166/a-new-key-player-in-vegf-dependent-angiogenesis-in-human-hepatocellular-carcinoma-dimethylarginine-dimethylaminohydrolase-1
#14
Nikki Buijs, J Efraim Oosterink, Morgan Jessup, Henk Schierbeek, Donna B Stolz, Alexander P Houdijk, David A Geller, Paul A van Leeuwen
BACKGROUND: Anti-angiogenic therapies, targeting VEGF, are a promising treatment for hepatocellular carcinoma (HCC). To enhance this potential therapy, identification of novel targets in this pathway is of major interest. Nitric oxide (NO) plays a crucial role in VEGF-dependent angiogenesis. NO production depends on arginine as substrate and asymmetric dimethylarginine (ADMA) as inhibitor. Dimethylarginine dimethylaminohydrolase 1 (DDAH-1) catabolizes ADMA and therefore regulates NO and VEGF expression...
July 24, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28739167/establishment-of-nf-%C3%AE%C2%BAb-sensing-and-interleukin-4-secreting-mesenchymal-stromal-cells-as-an-on-demand-drug-delivery-system-to-modulate-inflammation
#15
Tzuhua Lin, Jukka Pajarinen, Akira Nabeshima, Laura Lu, Karthik Nathan, Zhenyu Yao, Stuart B Goodman
Chronic inflammation is associated with up-regulation of the transcription factor nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and excessive inflammatory cytokine secretion by M1 macrophages. The anti-inflammatory cytokine interleukin (IL)-4 converts pro-inflammatory M1 macrophages into an anti-inflammatory and tissue-regenerative M2 phenotype, thus reducing inflammation and enhancing tissue regeneration. We have generated NF-κB responsive, or constitutively active IL-4 expression lentiviral vectors transduced into murine bone marrow-derived mesenchymal stromal cells (MSCs)...
July 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28738845/lutein-and-zeaxanthin-isomers-modulates-lipid-metabolism-and-the-inflammatory-state-of-retina-in-obesity-induced-high-fat-diet-rodent-model
#16
Mehmet Tuzcu, Cemal Orhan, Omer Ersin Muz, Nurhan Sahin, Vijaya Juturu, Kazım Sahin
BACKGROUND: Several studies associated high-fat intakes with a high incidence of age-related macular degeneration (AMD). Lutein and Zeaxanthin isomers (L/Zi) may counteract reactive oxygen species produced by oxidative stress. The present study was conducted to determine the possible effects of L/Zi administration on lipid profile, protein genes associated with oxidative stress and inflammation pathways in the obesity induced by a high-fat diet (HFD) in rodents. METHODS: Twenty-eight male Wistar rats were allocated into four groups as follows: (i) Control, (ii) Control + L/Zi, (iii) High Fat Diet (HFD), and (iv) HFD+ L/Z...
July 24, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28738499/aqueous-extract-of-codium-fragile-suppressed-inflammatory-responses-in-lipopolysaccharide-stimulated-raw264-7-cells-and-carrageenan-induced-rats
#17
Seul Ah Lee, Sung-Min Moon, Yun Hee Choi, Seul Hee Han, Bo-Ram Park, Mi Suk Choi, Jae-Sung Kim, Yong Hwan Kim, Do Kyung Kim, Chun Sung Kim
Codium fragile (Suringar) Hariot has been used in Oriental medicine for the treatment of enterobiasis, dropsy, and dysuria and has been shown to have various biological effects. In this study, we evaluated the anti-inflammatory effects of aqueous extract of C. fragile (AECF) using in vitro and in vivo models. Nitric oxide (NO), prostaglandin E2 (PGE2), inflammatory-related mRNAs, and proteins were determined using the Griess assay, enzyme-linked immunosorbent assay (ELISA), reverse transcription-polymerase chain reaction (RT-PCR), and western blotting, respectively...
July 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28737158/gastric-lesions-in-dolphins-stranded-along-the-eastern-adriatic-coast
#18
Jerko Hrabar, Ivana Bočina, Andrea Gudan Kurilj, Martina Đuras, Ivona Mladineo
Stranded cetaceans are often found with gastric lesions associated with the presence of parasites; most frequently, nematodes of the genus Anisakis and the heterophyd digenean trematode Pholeter gastrophilus. In this study, we present histopathology mainly (but not exclusively) related to these 2 parasite species. Macroscopically, lesions associated with the presence of Anisakis spp. were characterised by the presence of ulcers within the gastric mucosa, while the digenean P. gastrophilus was found within large submucosal fibrotic nodules in the gastric wall...
July 24, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28736159/a-novel-ccr-2-tlr-2-triggered-signaling-in-murine-peritoneal-macrophages-intensifies-bacterial-staphylococcus-aureus-killing-by-reactive-oxygen-species-through-tnf-r1
#19
Ajeya Nandi, Biswadev Bishayi
Macrophages are remarkably versatile in their ability to recognize and respond to a wide range of stimuli by expressing a variety of surface and intracellular receptors and triggering multiple signal transduction pathways. The onset of microbial infection is primarily determined by the initial contacts made by the microbes with the host macrophages. Although there prevail a relationship between the chemokine receptor and Toll like receptors during disease, particularly TLR-2 and CCR-2 signaling interdependence on each other has not been yet investigated during acute staphylococcal infection...
July 20, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28735085/minocycline-attenuates-streptomycin-induced-cochlear-hair-cell-death-by-inhibiting-protein-nitration-and-poly-adp-ribose-polymerase-activation
#20
Ping Wang, Haonan Li, Shuyuan Yu, Peng Jin, Abdurahman Hassan, Bo Du
This study aimed to elucidate the protective effect of minocycline against streptomycin-induced damage of cochlear hair cells and its mechanism. Cochlear membranes were isolated from newborn Wistar rats and randomly divided into control, 500μmol/L streptomycin, 100μmol/L minocycline, and streptomycin and minocycline treatment groups. Hair cell survival was analyzed by detecting the expression of 3-nitrotyrosine (3-NT) in cochlear hair cells by immunofluorescence and an enzyme-linked immunosorbent assay. Expression of 3-NT and inducible nitric oxide synthase (iNOS), and poly (ADP-Ribose) polymerase (PARP) and caspase-3 activation were evaluated by western blotting...
July 19, 2017: Neuroscience Letters
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