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| 1 | Circulating tumor and cancer stem cells in hepatitis C virusassociated liver disease显示文摘AIM:To assess the role of circulating tumor cells(CTCs)and cancer stem cells(CSCs)in hepatitis C virus(HCV)-associated liver disease.METHODS:Blood and/or tissue samples were obtained from HCV(genotype 4)-associated hepatocellularcarcinoma patients(HCC;n=120),chronic hepatitis C patients(CH;n=30)and 33 normal control subjects(n=33).Serum levels of alpha-fetoprotein(AFP),alkaline phosphatase,and alanine and aspartate aminotransferases were measured.Cytokeratin 19(CK19)monoclonal antibody was used to enumerate CTCs,and CD133 and CD90 were used to enumerate CSCs by flow cytometry.The expression levels of the CSCs markers(CD133 and CD90)as well as telomerase,melanoma antigen encoding gene 1(MAGE1)and MAGE3 were assessed by RTPCR and quantitative real-time polymerase chain reactions.The number of CTCs and/or the expression levels of CK19,CD133,telomerase,MAGE1 and MAGE3 were correlated to the standard clinicopathologic prognostic factors and disease progression.RESULTS:Levels of AFP,alkaline phosphatase and aspartate aminotransferase were significantly different among the HCC,CH and control groups(P<0.001),whereas alanine aminotransferase differed significantly between patient(HCC and CH)and control groups(P<0.001).At the specified cutoff values determine by flow cytometry,CK19(49.8),CD90(400)and CD133(73)were significantly higher in the blood of HCC patients compared to those in the CH and control groups(P<0.001).On the other hand,CD133 at a 69.5 cutoff was significantly higher in the CH compared to the control group(P≤0.001).Telomerase,MAGE1 and MAGE3RNA were expressed in 55.71%,60.00%and 62.86%of the HCC patients,respectively,but were not detected in patients in the CH or control groups,which were statistically significant(Ps<0.001).The expression levels of telomerase,CD90,MAGE3,CD133 and CK19 were all significantly associated with high tumor grade and advanced stage in HCC patients(all P s<0.05).CONCLUSION:CTC counts and AFP,CK19,telomerase,and MAGE1/MAGE3 expression predict disease progression in patients with HCV,whereas telomerase,MAGE3,CD90,CD133 and CK19 are prognostic mark- | Abeer A Bahnassy Abdel-Rahman N Zekri Ahmed El-Bastawisy Amal Fawzy Marwa Shetta Nehal Hussein Dalia Omran Abdallah A S Ahmed Samir S El-Labbody | 2014 | World Journal of Gastroenterology2014，20，48： | 9 |
| 2 | The dynamics of lead-screw drives:low-order modeling and experiments显示文摘 | Kripa K V Samir A N | 2004 | Transactions ofASME Journal of Dynamic Systems Measurement andcontrol2004，126，2： | 1 |
| 3 | High capacity lossless data embedding technique for palette images based on histogram analysis 显示文摘 | Noura A Saleh Hoda N Boghdady Samir I Shaheen | 2010 | Digital Signal Proces- sing2010，20，6： | 1 |
| 4 | Structured H2 optimization of vehicle suspensions based on multi-wheel models显示文摘 | Zuo L Samir A N | 2003 | Vehicle System Dynamics2003，40，5： | 1 |
| 5 | Can short-term fasting protect against doxorubicin-induced cardiotoxicity?显示文摘Doxorubicin(Dox) is one of the most effective chemotherapeutic agents used in the treatment of several types of cancer. However the use is limited by cardiotoxicity. Despite extensive investigation into the mechanisms of toxicity and preventative strategies, Dox-induced cardiotoxicity still remains a major cause of morbidity and mortality in cancer survivors. Thus, continued research into preventative strategies is vital. Short-term fasting has proven to be cardioprotective against a variety of insults. Despite the potential, only a few studies have been conducted investigating its ability to prevent Dox-induced cardiotoxicity. However, all show proof-of-principle that short-term fasting is cardioprotective against Dox. Fasting affects a plethora of cellular processes making it difficult to discern the mechanism(s) translating fasting to cardioprotection, but may involve suppression of insulin and insulin-like growth factor-1 signaling with stimulated autophagy. It is likely that additional mechanisms also contribute. Importantly, the literature suggests that fasting may enhance the antitumor activity of Dox. Thus, fasting is a regimen that warrants further investigation as a potential strategy to prevent Dox-induced cardiotoxicity. Future research should aim to determine the optimal regimen of fasting, confirmation that this regimen does not interfere with the antitumor properties of Dox, as well as the underlying mechanisms exerting the cardioprotective effects. | Amie J Dirks-Naylor Samir A Kouzi Sendra Yang Ngan TK Tran Joseph D Bero Raean Mabolo Diep T Phan Stephanie D Whitt Heather N Taylor | 2014 | World Journal of Biological Chemistry2014，5，3： | 1 |
| 6 | Structured H2 optimization of vehicle suspensions based on multi-wheel models显示文摘 | Zuo L Samir A N | 2003 | Vehicle System Dynamics2003，40，5： | 1 |
| 7 | Amalgamation of procalcitonin,C-reactive protein,and sequential organ failure scoring system in predicting sepsis survival显示文摘 | Hegazy M A Omar A S Samir N | 2014 | Anesth Essays Res2014，8，3： | 1 |
| 8 | Relation between bacterial strain resistance to solvents and biodesulfurization activity in organic medium 显示文摘 | MURIELLE B N SAMIR A A MICHEL W | 2004 | Applied Microbiology Biotechnology2004，65，： | 1 |
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