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| 1 | H pylori seroprevalence in patients with lung cancer显示文摘AIM: To assess H pylori seroprevalence in lung cancer and determine whether there is a potential association between lung cancer and H pylori infection. METHODS: The study was conducted on forty consecutive patients with lung cancer, confirmed by pathology (32 men, 8 women; mean age 55.50 ± 11.91 years, range 16-77 years). Forty healthy subjects (25 men, 15 women; mean age 43.08 ± 12.60 years, range 20-79 years) from the patients’ family members were matched to each case subject on the basis of age and socioeconomic status. H pylori infection was detected with a commercially available immunoglobulin G (IgG) enzyme-linked immunosorbent assay (Trinity kit, Biotech co., USA), previously validated in adults (86% sensitivity, 96% specificity) against a gold standard of culture and histology. RESULTS: H pylori seropositivity was present in 52.5% of patients with lung cancer in comparison to 45.0% of healthy control subjects. Although H pylori seropositivity was more frequent in lung cancer patients than in controls, the difference did not reach statistical significance (OR = 1.35, 95% CI = 0.56-3.25; P = 0.65). In addition, there was no significant difference between cases and controls in terms of gastrointestinal symptoms. CONCLUSION: The earlier described association between H pylori infection and lung cancer was not supported in this study. Further studies with larger sample sizes should be undertaken to assess the frequency of H pylori infection in patients with lung cancer and their potential association. | Katayoon Najafizadeh Sayeed Falah Tafti Masoud Shiehmorteza Masoud Saloor Masoud Jamali | 2007 | World Journal of Gastroenterology2007，13，16： | 6 |
| 2 | Grain Size Effect on the Martensite Formation in a High-Manganese TWIP Steel by the Rietveld Method显示文摘The aim of the present work was to study the effect of austenite grain size (AGS) on the martensite formation in a high-manganese twinning-induced plasticity (TWIP) steel. The results of a quantitative microstructural characterization of the steel by the whole X-ray pattern fitting Rietveld software, materials analysis using diffraction (MAUD), indicated that the volume fraction of α bcc-martensite increases with increasing AGS. However, the value of the stacking fault probability (P sf ) does not show a large variation for samples with different values of AGS under water-quenching conditions. | G. Dini A. Najafizadeh S.M. Monir-Vaghefi R. Ueji | 2010 | Journal of Materials Science & Technology2010，26，2： | 5 |
| 3 | Flow stress analysis of TWIP steel via the XRD measurement of dislocation density显示文摘 | G. Dini R. Ueji A. Najafizadeh S.M. Monir-Vaghefi | 2010 | Materials Science & Engineering A2010，，10： | 1 |
| 4 | Me1 chanical Stability of Functionally Graded Stiffened cy1 lindrical Shell显示文摘 | Najafizadeh M M Hasani A Khazaeinejad P | 2009 | Applied Mathematical Modelling2009，33，2： | 1 |
| 5 | Health status of the patients before lung transplantation: a report from Iran显示文摘 | Najafizadeh K Ghorbani F Rostami A | 2009 | Ann Transplant2009，14，1： | 1 |
| 6 | An exact solution for buckling of functionally graded circular plates based on higher order shear deformation plate theoryunder uniform radial compression 显示文摘 | Najafizadeh M M Heydari H R | 2008 | International Journal of Mechanical Sciences2008，50，： | 1 |
| 7 | Tensile deformation behavior of high manganese austenitic steel: The role of grain size显示文摘 | G. Dini A. Najafizadeh R. Ueji S.M. Monir-Vaghefi | 2010 | Materials and Design2010，，7： | 1 |
| 8 | Detection of bone erosion in early rheumatoid arthritis: ultrasonography and conventional radiography versus non-contrast magnetic resonance imaging 显示文摘 | Rahmani M Chegini H Najafizadeh SR | 2010 | Clin Rheumatol2010，29，8： | 1 |
| 9 | Correlation between processing parameters and strain-induced martensitic transformation in cold worked AISI 301 stainless steel显示文摘 | Mirzadeh H Najafizadeh A | 2008 | Materials Characterization2008，59，： | 1 |
| 10 | ANN modeling of strain-induced martensite and its applications in metastable austenitic stainless steels 显示文摘 | Mirzadeh H Najafizadeh A | 2009 | Journal of Alloys and Compounds2009，476，： | 1 |
| 11 | Extrapolation of flow curves at hot working conditions 显示文摘 | Mirzadeh H Najafizadeh A | 2010 | Materials Science and Engineering A2010，527，： | 1 |
| 12 | Improved ten- sile properties of partially recrystallized submicron grained TWlP steel显示文摘 | Dini G Najafizadeh A Ueji R | 2010 | Materials Letters2010，64，1： | 1 |
| 13 | Potential application of nanocrystalline 301 austenitic stainless steel in lightweight vehicle structures显示文摘 | ESKANDARI M NAJAFIZADEH A KERMANPUR A | 2009 | Materials and Design2009，9，30： | 1 |
| 14 | First-order-theorybased thermoelastic stability of functionally graded material circular plates显示文摘 | Najafizadeh M M Eslami M R | 2002 | AIAA Journal2002，40，7： | 1 |
| 15 | Detection of bone erosion in early rheumatoid arthritis: uhrasonography and conventional radiography versus non-contrast magnetic resonance imaging 显示文摘 | Rahmani M Chegini H Najafizadeh SR | 2010 | Clin Rheumatol2010，29，88： | 1 |
| 16 | Buckling analysis of circular plates of functionally graded materials under uniform radial compression显示文摘 | Najafizadeh M M Eslami M R | 2002 | International Journal of Mechanical Sciences2002，44，： | 1 |
| 17 | Single Even Transient Response of SiGe Voltage References and Its Impact on the Performance of Analog and Mixed-Signal Circuits显示文摘 | Najafizadeh L Phillips S D Moen K A | 2009 | IEEE Trans on Nuclear Science2009，56，6： | 1 |
| 18 | A new method for evalua- tion of friction in bulk metal forming 显示文摘 | Ebrahimi R Najafizadeh A | 2004 | Journal of Ma- terials Processing Technology2004，152，： | 1 |
| 19 | Predicting of mechanical properties of Fe-Mn-(Al, Si) TRIP/TWIP steels using neural network model- ing显示文摘 | Dini G Najafizadeh A Monir-Vaghefi S M | 2009 | Computational Materials Science2009，45，4： | 1 |
| 20 | Predicting the critical stress for initiation of dynamic recrystal-lization 显示文摘 | Najafizadeh A Jonas J J | 2006 | ISIJ International2006，46，11： | 1 |
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