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| 1 | A roadmap for security challenges in the Internet of Things显示文摘 | Arbia Riahi Sfar Enrico Natalizio Yacine Challal Zied Chtourou | 2018 | Digital Communications and Networks2018,4,2: | 5 |
| 2 | Cytokine and apoptosis gene polymorphisms influence the outcome of hepatitis C virus infection显示文摘BACKGROUND:Hepatitis C virus (HCV) infection is thought to be chronic and the factors leading to viral clearance or persistence are poorly understood.This study was undertaken to investigate the possibility of a significant relationship between the spontaneous clearance or the persistence of hepatitis C virus (HCV) infection and cytokine and apoptosis gene polymorphisms in Tunisian patients on hemodialysis.METHODS:Polymorphisms of the genes IL-1 (-889 IL-1α,-511 and +3954 IL-1β,IL-1Ra),IL-18 (-137 and-607),IL-12 (-1188) and Apo1/Fas (-670) were determined by PCR-RFLP,PCR-SSP and PCR-VNTR in 100 healthy blood donors and 100 patients infected with HCV and undergoing hemodialysis.The patients were classified into two groups:G1 consisted of 76 active chronic hepatitis patients (positive for HCV RNA) and G2 consisted of 24 hemodialysed patients who spontaneously eliminated the virus (negative for HCV RNA).RESULTS:The frequency of genotype association [-137GC/-607CA] IL-18 was higher in G2 (41.7%) than in G1 (15.8%) (P=0.008;OR=0.26;95% CI,0.10-0.73).We also found a higher frequency of the AA genotype of the Apo1/Fas gene in G2 (41.6%) than in G1 (17.5%) (P=0.026;OR=3.49;95% CI,1.13-10.69).Adjustment for known covariate factors (age,gender and genotype) confirmed these univariate findings and revealed that the genotype association GC-CA of the (-137 and-607) IL-18 gene and the AA genotype of the Apo1/Fas gene were associated with the clearance of HCV (P=0.041 and 0.017,respectively).CONCLUSION:The two genotypes GC-CA of the (-137 and-607) IL-18 polymorphism and the AA genotype of the Apo1/Fas gene influence the outcome of HCV infection in Tunisian patients on hemodialysis. | Leila Ksiaa Cheikhrouhou Imen Sfar Hajer Aounallah-Skhiri Houda Aouadi Salwa Jendoubi-Ayed Taieb Ben Abdallah Khaled Ayed Yousr Lakhoua-Gorgi | 2011 | Hepatobiliary & Pancreatic Diseases International2011,10,3: | 4 |
| 3 | Association of Fas/Apo1 gene promoter (-670 A/G) polymorphism in Tunisian patients with IBD显示文摘AIM: To detect a possible association between the polymorphism of the (-670 A/G) Fas/Apo1 gene promoter and susceptibility to Crohn's disease (CD) and ulcerative colitis (UC) in the Tunisian population. METHODS: The (-670 A/G) Fas polymorphism was analyzed in 105 patients with CD, 59 patients with UC, and 100 controls using the polymerase chain reaction restriction fragment length polymorphism method. RESULTS: Significantly lower frequencies of the Fas -670 A allele and A/A homozygous individuals were observed in CD and UC patients when compared with controls. Analysis of (-670 A/G) Fas polymorphism with respect to sex in CD and UC showed a significant difference in A/A genotypes between female patients and controls (P corrected = 0.004 in CD patients and P corrected = 0.02 in UC patients, respectively). Analysis also showed a statistically significant association between genotype AA of the (-670 A/G) polymorphism and the ileum localization of the lesions (P corrected = 0.048) and between genotype GG and the colon localization (Pcorrected = 0.009). The analysis ofinflammatory bowel disease patients according to clinical behavior revealed no difference. CONCLUSION: Fas-670 polymorphism was associated with the development of CD and UC in the Tunisian population. | Walid Ben Aleya Imen Sfar Leila Mouelhi Houda Aouadi Mouna Makhlouf Salwa Ayed-Jendoubi Samira Matri Azza Filali Taoufik Najjar Taeib Ben Abdallah Khaled Ayed Yousr Gorgi | 2009 | World Journal of Gastroenterology2009,15,29: | 3 |
| 4 | Natural evolution of hepatitis C virus infection in hemodialysis Tunisian patients and CTLA-4 SNP's显示文摘AIM: To analyze the polymorphisms of CTLA-4 gene involved in the response against hepatitis C virus(HCV) infection.METHODS: We recruited 500 hemodialysed patients from several hemodialysis centers, all HCV-antibody positive, spread over different regions of Tunisia, as part of a national survey in 2008 conducted in the laboratory of immunology at the Charles Nicolle hospital Tunisia, classified into two groups G1(PCR+) and G2(PCR-) according to the presence or absence of viral RNA. Of these patients, 307 were followed prospectively on a viral molecular level over a period from 2002 to 2008, divided into two groups based on the persistence and viral clearance. PCR-RFLP was performed for the analysis of SNPs(+49) A/G and(+6230) G/A CTLA-4 for these 500 patients and 358 healthy controls.RESULTS: Analysis of clinical and virological charac-teristics of our cohort suggests a nosocomial infection in our hemodialysed patients with transfusion history as a primary risk factor and a predominance of genotype 1b. The haplotype analysis revealed an increase of frequencies of GG(+49)/(CT60) CTLA-4 in the entire patients group compared to controls(P = 0.0036 and OR = 1.42; 95%CI: 1.12-1.79, respectively). This haplotype is therefore associated with susceptibility to HCV infection. CONCLUSION: Our study suggests a possible role of CTLA-4 polymorphisms in the outcome of HCV infection in the Tunisian hemodialysed population. | Leila Ksiaa Cheikhrouhou Yousr Lakhoua-Gorgi Imen Sfar Salwa Jendoubi-Ayed Houda Aouadi Mouna Makhlouf Khaled Ayed Taieb Ben Abdallah | 2015 | World Journal of Gastroenterology2015,21,35: | 2 |
| 5 | Assessment of TBC systems failure mechanisms using a fracture mechanics approach显示文摘 | Aktaa J Sfar K Munz D | 2005 | Acta Materialia2005,53,: | 1 |
| 6 | A repeat polymorphism in interleukin-4 gene is highly associated with specific clinicalphenotypes of asthma显示文摘 | Chouchane L Sfar I | 2007 | Int Arch Allergy Immunol2007,120,: | 1 |
| 7 | Anti-CCP antibodies, rheumatoid factors and anti-keratin antibodies: clinical value in established rheumatoid arthritis显示文摘 | Amri M Sfar I Ounallah HS | 2011 | Tunis Med2011,89,3: | 1 |
| 8 | Numerical investigation of residual stress fields and crack behavior in TBC systems 显示文摘 | Sfar K Aktaa J Munz D | 2002 | Materials Science and Engineering2002,333,: | 1 |
| 9 | Numerical investigations of residual stress fields and crack behavior in TBC systems 显示文摘 | Sfar K Aktaa J Munz D | 2002 | Materials Science and Engineering2002,333,2: | 1 |
| 10 | Scintigraphic findings in hungry bone syndrome following parathyroidectomy显示文摘 | Ajmi S Sfar R Trimeche S | 2010 | Rev Esp Med Nucl2010,29,2: | 1 |
| 11 | Numerical investigations of residual stress fields and crack behavior in TBC systems 显示文摘 | Sfar K Aktaa J Munz D | 2002 | Materials Science and Engineering2002,333,: | 1 |
| 12 | Role of immune system,apop-tosis and angiogenesis in pathogenesis of rheumatoid arthritis and jointdestruction显示文摘 | Dhaouadi T Sfar I Abelmoula L el al | 2007 | Tunis Med2007,85,12: | 1 |
| 13 | Optimal antenna selection based on capacity maximization for MIMO systems in correlated channels 显示文摘 | Dai L Sfar S Letaief K B | 2006 | IEEE Transactions on Communications IEEE USA Mar2006,54,3: | 1 |
| 14 | Assessment of TBC systems failure mechanisms using a fracture mechanics approach 显示文摘 | Aktaa J Sfar K Munz D | 2005 | Aeta Materialia2005,53,16: | 1 |
| 15 | An efficient detector for combined space -time coding and layered processing显示文摘 | Dai Lin Sfar Sana Letaief K B | 2005 | IEEE transcommun2005,53,9: | 1 |
| 16 | Assessment of TBC systems failure mechanisms using a fracture mechanics approach显示文摘 | J. Aktaa K. Sfar D. Munz | 2005 | Acta Materialia2005,,16: | 1 |
| 17 | Comprehensive analysis of PTEN status in breast carcinomas显示文摘 | Jones N Bonnet F Sfar S | 2013 | Int J Cancer2013,133,2: | 1 |
| 18 | 显示文摘 | Sfar S F A | 2011 | Ann Fr Anesth Reanim2011,30,3: | 1 |
| 19 | TSP1 and MMP9 genetic variants in sporadic prostate cancer显示文摘 | Sfar S Saad H Mosbah F Gabbouj S Chouchane L | 2007 | Cancer Genet Cytogenet2007,172,: | 1 |
| 20 | Antenna Selection for MIMO Systems with Closely Spaced Antennas显示文摘 | YANG Y BLUM R S SFAR S | 2009 | EURASIP Journal on Wireless Communications and Networking2009,,1: | 1 |