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| 1 | Overview of cytokines and nitric oxide involvement in immuno-pathogenesis of inflammatory bowel diseases显示文摘Inflammatory bowel diseases(IBDs), including Crohn's disease and ulcerative colitis are complex disorders with undetermined etiology. Several hypotheses suggest that IBDs result from an abnormal immune response against endogenous flora and luminal antigens in genetically susceptible individuals. The dysfunction of the mucosal immune response is implicated in the pathogenesis of IBD. The balance between pro-inflammatory cytokines [tumor necrosis factor(TNF)-α, interleukin(IL)-1b, IL-8, and IL-17A], anti-inflammatory cytokines(IL-4 and IL-13), and immunoregulatory cytokines(IL-10 and transforming growth factors b) is disturbed. Moreover, evidence from animal and clinical studies demonstrate a positive correlation between an increased concentration of nitric oxide(NO) and the severity of the disease. Interestingly, proinflammatory cytokines are involved in the up-regulation of inducible oxide synthase(iN OS) expression in IBD. However, anti-inflammatory and immunoregulatory cytokines are responsible for the negative regulation of iN OS. A positive correlation between NO production and increased pro-inflammatory cytokine levels(TNF-α, IL-6, IL-17, IL-12, and interferon-γ) were reported in patients with IBD. This review focuses on the role of cytokines in intestinal inflammation and their relationship with NO in IBD. | Imene Soufli Ryma Toumi Hayet Rafa Chafia Touil-Boukoffa | 2016 | World Journal of Gastrointestinal Pharmacology and Therapeutics2016，7，3： | 30 |
| 2 | Antihydatic and immunomodulatory effects of Punica granatum peel aqueous extract in a murine model of echinococcosis显示文摘Objective:To investigate the effect of pomegranate peel aqueous extract(PGE) on the development of secondary experimental echinococcosis and on the viability of Echinococcux granulosus protoscoleces,and the immunomodulatory properties of PGE.Methods:Swiss mice were inoculated intraperitoneally with viable protoscoleces.Then,PGE was orally administered daily during cystic echinococcosis development.Cyst development and hepatic damage were macroscopically and histologically analyzed.The production of nitric oxide and TNF-α was assessed in plasma and the hepatic expression of iNOS.TNF-α,NF-κB and CD68 was examined.Moreover,protoscoleces were cultured and treated with different concentrations of PGE.Results:It was observed that in vitro treatment of protoscoleces caused a significant decrease in viability in a PGE-dose-dependent manner.In vivo,after treatment of cystic echinococcosis infected mice with PGE,a significant decrease in nitric oxide levels(P<0.000 1)and TNF-α levels(P<0.001) was observed.This decline was strongly related to the inhibition of cyst development(rate of hydatid cyst growth inhibition=63.08%) and a decrease in CD68 expression in both the pericystic layer of hepatic hydatid cysts and liver tissue(P<0.000 1).A significant diminution of iNOS,TNF-α and NF-κB expression was also observed in liver tissue of treated mice(P<0.000 1).Conclusions:Our results indicate an antihydatic scolicidal effect and immunomodulatory properties of PGE,suggesting its potential therapeutic role against Echinococcuss granulosus infection. | Moussa Labsi Lila Khelifi Dalila Mezioug Imene Soufli Chafia Touil-Boukoffa | 2016 | Asian Pacific Journal of Tropical Medicine2016，9，3： | 5 |
| 3 | NOD2/CARD15 gene mutations in North Algerian patients with inflammatory bowel disease显示文摘AIM: To analyse allelic frequency of NOD2 gene variantsand to assess their correlation with inflammatory bowel disease(IBD) in Algeria.METHODS: We studied 132 unrelated patients diagnosed with IBD, 86 with Crohn's disease(CD) and 46 with ulcerative colitis(UC). Data was prospectively collected between January 2011 and December 2013. The demographic and clinical characteristics were recorded for all the patients. A group of 114 healthy unrelated individuals were selected as controls. All groups studied originated from different regions of North Algeria and confirmed the Algerian origin of their parents and grandparents. Informed and written consent was obtained from each of the participants. All individuals were genotyped for the three CDassociated NOD2 variants(p.Arg702 Trp, p.Gly908 Arg and p.Leu1007 fsins C mutations) using the polymerase chain reaction-restriction fragment length polymorphism method. Allele and genotype frequencies in patients and control subjects were compared by χ2 test and Fisher's exact test where appropriate. Odds ratios(OR) and 95% confidence intervals(95%CI) were also estimated. Association analyses were performed to study the influence of these variants on IBD and on clinical phenotypes.RESULTS: The p.Arg702 Trp mutation showed the highest frequency in CD patients(8%) compared to UC patients(2%)(P = 0.09, OR = 3.67, 95%CI: 0.48-4.87) and controls(5%)(P = 0.4, OR = 1.47, 95%CI: 0.65-3.31). In CD patients allelic frequencies of p.Gly908 Arg and p.Leu1007 fsins C variants compared to HC were 3% vs 2%(P = 0.5, OR = 1.67, 95%CI: 0.44-6.34); 2% vs 1%(P = 0.4 OR = 2.69 95%CI: 0.48-14.87 respectively). In UC patients, allelic frequencies of p.Gly908 Arg and p.Leu1007 fsins C variants compared to HC were 1% vs 2%(P = 1, OR = 1.62, 95%CI: 0.17-4.74) and 2% vs 1%(P = 0.32, OR = 0.39, 95%CI: 0.05-2.87). The total frequency of the mutated NOD2 chromosomes was higher in CD(13%), than in HC(8%) and UC(5%). In addition, NOD2 variants were linked to a particular clinical sub-phenotype in CD in this Algerian cohort. As expected, the three NOD2 variants showed a significant association with CD but did not reach statistical significance, despite the fact that the allele frequency of NOD2 variants was in the range found in most of the European populations. This might be due to the non-exposure of the NOD2 carriers to environmental factors, required for the expression of the disease.CONCLUSION: Further analyses are necessary to study genetic and environmental factors in IBD in the Algerian population, using larger patient groups. | Aziza Boukercha Hamida Mesbah-Amroun Amira Bouzidi Houria Saoula Mhamed Nakkemouche Maryline Roy Jean-Pierre Hugot Chafia Touil-Boukoffa | 2015 | World Journal of Gastroenterology2015，21，25： | 3 |
| 4 | Production of nitric oxide (NO) in human hydatidosis: Relationship between nitrite production and interferon-γ levels显示文摘 | Chafia Touil-Boukoffa Brigitte Bauvois Josiane Sancéau Boussad Hamrioui Juana Wietzerbin | 1998 | Biochimie1998，，： | 2 |
| 5 | Evaluation of adsorption capacities of humic acids extracted from Algerian soil on polyaniline for application to remove pollutants such as Cd(Ⅱ), Zn(Ⅱ) and Ni(Ⅱ) and characterization with cavity microelectrode显示文摘The adsorption capacities of new humic acids isolated from Yakouren forest (YHA) and Sahara (Tamenrasset: THA) soils (Algeria) and commercial humic acid (PFHA) on polyaniline emeraldine base (PEB) were studied at pH 6.6. Also the adsorption of heavy metals such as Cd 2+ , Zn 2+ and Ni 2+ on humic acid-polyaniline systems (HA-PEB) was investigated at the same conditions. HA-PEB compounds were characterized by scanning electron microscopy (SEM), infrared spectrometry and cavity microelectrode. In addition, batch adsorption and cavity microelectrode were used in the adsorption study of Cd 2+ , Zn 2+ and Ni 2+ on HA-PEB. To develop biocaptors of polluting metals using a cavity microelectrode modified by HA-PEB systems, the adsorption kinetic and adsorption capacity were investigated. The SEM analysis showed that the presence of humic acid affected the PEB surface and caused the formation of a granular morphology. The maximum adsorption capacities (q max ) of PFHA, THA and YHA determined by adsorption isotherms were 91.31, 132.1 and 151.0 mg/g, respectively. Batch adsorption results showed that q max of Cd 2+ , Zn 2+ and Ni 2+ on HA-PEB followed the order: THA-PEB > YHA-PEB > PFHA-PEB. The voltammograms obtained with HA-PEB modified cavity microelectrode showed the appearance of new redox couples reflecting the adsorption of HA on PEB. Metal-humic acid-polyaniline voltammograms were characterized by appearance of oxidation-reduction couples or reduction wave corresponding to metal. Finally, the result may be exploited to develop a biocaptor based on the cavity microelectrode amended by THA-PEB and YHA-PEB. | Achour Terbouche Chafia Ait Ramdane-Terbouche Didier Hauchard Safia Djebbar | 2011 | Journal of Environmental Sciences2011，23，7： | 2 |
| 6 | In Vitro Study of Nitric Oxide Metabolites Effects on Human Hydatid of Echinococcus granulosus显示文摘 | Razika Zeghir-Bouteldja Manel Amri Saliha Aitaissa Samia Bouaziz Dalila Mezioug Chafia Touil-Boukoffa Claudio Genchi | 2009 | Journal of Parasitology Research2009，，： | 1 |
| 7 | Pixel Permutation of a ColorImage Based on a Projection from a Rotated View显示文摘 | Brahim Nini Chafia Melloul | | 0，，04： | 1 |
| 8 | A protective effect of the laminated layer on Echinococcus granulosus survival dependent on upregulation of host arginase显示文摘 | Manel Amri Chafia Touil-Boukoffa | 2015 | Acta Tropica2015，，： | 1 |
| 9 | Antihydatic and immunomodulatory effects of Algerian propolis ethanolic extract:In vitro and in vivo study显示文摘Objective: To evaluate the in vitro and in vivo effect of the Algerian propolis ethanolic extract(EEP) against Echinococcus granulosus(E. granulosus) infection. Methods: In vitro scolicidal activity of EEP was investigated on the protoscolices of hydatid cyst. This in vitro study was conducted by using an in vivo assay. BALB/c mice were inoculated with E. granulosus and treated with propolis for three months. Hydatid cysts development was assessed. Nitric oxide(NO), tumor necrosis factor alpha(TNF-α) production and inducible NO synthase, NF-κB, and TNF-α spleen expression were estimated by Griess method and immunofluorescence respectively.Results: Our study revealed that EEP has a high scolicidal activity against E. granulosus. Oral administration of EEP decreased TNF-α, NF-κB and inducible NO synthase expression in the spleen tissues in the CE+EEP group, in comparison with the CE group. Concomitantly, EEP treatment caused an important systemic decrease in NO and TNF-α levels. These findings are associated with the reduction of CE development. Conclusions: This is the first report demonstrating with interest the antihydatic and immunomodulatory effects of the Algerian EEP, suggesting its therapeutic potential for the hydatid disease treatment. | Nahla Deghbar Dalila Mezioug Touri Kahina Yacine-Miloud Medjdoub Chafia Touil-Boukoffa | 2019 | Asian Pacific Journal of Tropical Medicine2019，12，3： | 1 |
| 10 | Degradation of methyl violet 6B dye by the Fenton process显示文摘 | Chafia Bouasla Mohamed El-Hadi Samar Fadhel Ismail | 2010 | Desalination2010，254，： | 1 |
| 11 | Protein sequence comparison based on the wavelet transform approach显示文摘 | Chafia H T Qing F Cosic I | 2002 | Pro Eng2002，15，： | 1 |
| 12 | Effects ofpyrolysis conditions on the porous structure develop-ment of date pits activated carbon显示文摘 | CHAFIA B MOHAMED M S’MARSA Z | 2012 | Journal of Ana-lytical and Applied Pyrolysis2012，94，： | 1 |
| 13 | Study of the Migration of Additives from Plasticized PVC 显示文摘 | BELHANECHE-BENSEMRA Naima ZEDDAM Chafia OUAHMED Salah | 2002 | Macromol Syrup2002，180，： | 1 |
| 14 | In vitro anti-hydatic and immunomodulatory effects of ginger and [6]-gingerol显示文摘Objective: To study in vitro anti-hydatic and immunomodulatory effects of ginger and [6]-gingerol as an alternative therapy for Cystic echinococcosis. Methods: Effect of a commonly used herbal product and ginger(Zingiber officinale) towards protoscoleces(PSC) and cyst wall in vitro was studied. The effect of [6]-gingerol, and the pungent constituent of ginger, was also evaluated on PSC culture. Furthermore, the activity of both extracts in association with interferon-gamma(IFN-γ) on PSC co-cultured with mononuclear cells of hydatic patients was evaluated. The nitric oxide(NO) production was measured in each co-culture. Results: Ginger exhibited a concentration- and time-dependent cytotoxic effect against PSC and cyst wall. Interestingly, ginger was more effective than the [6]-gingerol. Moreover, additional parasitic effect between extracts and IFN-γ are also observed in co-cultures. Furthermore, both extracts attenuated the NO production elicited by this infection or by the IFN-γ. Conclusions: Ginger has an important anti-hydatic effect in vitro. This effect is amplified in the presence of IFN-γ. Moreover, this herbal product may protect against host's cell death by reducing the high levels of NO. Ginger may act, at least, through the [6]-gingerol. All our data suggest the promising use of ginger in the treatment of Echinococcus granulosus infection. | Manel Amri Chafia Touil-Boukoffa | 2016 | Asian Pacific Journal of Tropical Medicine2016，9，8： | 1 |
| 15 | Protein sequence comparison based on the wavelet transforms approach 显示文摘 | CHAFIA T FANG Q COSIC I | 2002 | Protein Engineering2002，15，3： | 1 |
| 16 | Study of the migration of additives from plasticized PVC显示文摘 | Naima Belhaneehe-Bensemra Chafia Zeddam Salah Ouahmed | 2002 | 1 80:191-2012002，180，： | 1 |
| 17 | Preparation andcharacterization of activated carbon from date stones by physical activation with steam 显示文摘 | Chafia B Mohamed S M Odile B | 2008 | Journal of Analytical and Applied Pyrolysis2008，82，： | 1 |
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