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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Iranian Journal of Pathology
- نوع مقاله: Journal Article
- کلمات کلیدی: Breast cancer,Metastasis,Gelsolin,Villin
- چکیده:
- چکیده انگلیسی: Background & Objective: Nowadays, actin-binding proteins such as Villin and Gelsolin have been considered to be associated with aggressive tumors. This study mainly aims to determine the relationship between Gelsolin and Villin genes expression and metastasis of axillary lymph nodes in patients with breast cancer.
Methods: The included population consisted of 40 confirmed cases of female breast cancer (including 20 patients with breast cancer along with axillary lymph node metastasis and 20 patients without axillary lymph node metastasis). Expression of Villin and Gelsolin genes was evaluated using Real-time PCR and pre-designed primers.
Results: The mean expression level of Villin in groups with and without axillary lymph node metastasis was 3.33±1.35 and 0.87±0.88, respectively (p <0.001). The mean Gelsolin expression levels in both groups (with and without axillary lymph node metastasis) were 4.13±2.40 and 1.00±0.35, respectively (p <0.001). The significant relationships were independent of individuals’ age.
Conclusion: Patients with axillary lymph node metastasis may express significant higher level of Villin and Gelsolin gens.- انتشار مقاله: 23-11-1398
- نویسندگان: Armin Borhan,Zohreh Nozarian,Alireza Abdollahi,Reza Shahsiah,Hadiseh Mohammadpour,Arash Borhan
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Pathology
- نوع مقاله: Journal Article
- کلمات کلیدی: Quality Control,Real-Time Polymerase Chain Reaction,Hepatitis B,Virus Load
- چکیده:
- چکیده انگلیسی: Background and Objectives: HBV DNA monitoring is important in management of chronic viral hepatitis B infection. HBV DNA measurements are carried out over period of months to years. So the analytical system must be stable and reproducible. The aim of this study was to determine the performance characteristics and to plan a statistical quality control system of a laboratory-developed real-time quantitative PCR assay for HBV DNA quantification. Methods: Values of systematic and random error at two clinical decision points;4.2 Log IU/mL (20000 IU/mL) and 3.2 Log IU/mL (2000 IU/mL) were determined. Candidate quality control procedures were selected and performance of the method by application of normalized operational process specification (OPSpecs) charts was determined. Results: The performance of the assay at level of 4.2 Log IU/mL and 3.2 Log IU/mL were excellent and good respectively. Moreover, a13.5S rule with two measurements offered 90% probability of error detection at level of 4.2 Log IU/mL, while no rule offered 90% probability of error detection at level of 3.2 Log IU/mL. Conclusion: Minimizing the formation of primer-dimer and nonspecific products and concentrating the target DNA during the purification process are proposed for accurate quantitative PCR particularly when CT values are high.
- انتشار مقاله: 24-03-1392
- نویسندگان: Fatemeh Nili,Reza Shahsiah,Farid Azmoudeh Ardalan,Mohsen Nassiri Toosi,Alireza Abdollahi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Pathology
- نوع مقاله: Journal Article
- کلمات کلیدی: Hepatitis C,Hemophilia,Human Immunodificiency Virus
- چکیده:
- چکیده انگلیسی: Background and Objective: Although transfusion therapy has lead to great improvement in longevity for hemophiliacs, but there have been tragic setbacks especially from transmission of human immunodeficiency virus (HIV) and hepatitis C virus (HCV) .HIV was reported to increase the rate of HCV-related liver failure by 4.2 times. In this study, we aimed to determine the seroprevalence of HIV and HCV, the association of HCV with abnormal liver tests, impact of HIV on HCV-related abnormalities and the distribution of HCV genotypes in Iranian hemophiliacs. Patients and Methods: In a cross-sectional study, we determined virological, clinical and epidemiological characteristics for HIV and HCV infection of 236 hemophiliacs attending our center. Data were analyzed using Chi-square test. Results: Ten (4.7%) out of 211 patients tested were HIV seropositive and 145 (83.3%) were HCV seropositive. All tested positive HIV patients also had HCV. HCV seroprevalence was significantly higher in patients with hemophilia A and B as compared to other congenital coagulopathies and it was directly related to coagulation severity. HCV seroprevalence was lower in hemophiliacs with positive HBsAg (p = 0.03) but it did not differ by HBcAb or HBsAb results. HCV genotype 1a (48.5%) was predominant type and genotype 3a (33.3%) was also common. Frequency of abnormal aspartate aminotransferase and alanine aminotransferase liver enzymes was significantly higher in the HCV positive group (p = 0.006). Conclusion: This study provides evidence that hepatitis c virus infection is a major problem for Iranian hemophiliacs and it has higher prevalence in hemophiliacs with higher age, more severe coagulopathies, abnormal alanine aminotransferase level, and human immunodeficiency virus co-infection.
- انتشار مقاله: 07-07-1393
- نویسندگان: Alireza Abdollahi,Reza Shahsiah,Mohssen Nassiri Toosi,Manije Lak,Katayoun Karimi,Mohammadreza Managhchi,Katayoun Samimi-rad
- مشاهده