نتایج جستجو برای: Gene Amplification

تعداد نتایج: 1163800  

Abolghasem Esmaeili, Hosein Tabatabaeian, Majid Motovali-Bashi, Zeinab Hallajian, Zohreh Hojati,

Background: Amplification of HER2 is seen in 20-30% of breast cancer cases. Measurement of HER2 gene amplification appears to be of vital importance in planning the treatment schedule for patients with breast carcinoma. The aim of our study was to evaluate HER2 amplification status in malignant and benign breast tumors by differential PCR (dPCR). Materials and Methods: The genomic DNA was ex...

Journal: :avicenna journal of medical biotechnology 0

background: trastuzumab (herceptin) is a humanized monoclonal antibody (mab) which is used for specific treatment of metastatic breast cancer in patients with overexpression of her2/neu receptor. in this study, we have attempted to develop a biosimilar version of trastuzumab mab. methods: according to in silico studies, the heavy and light chains of trastuzumab mab were designed and constructed...

Elmira Ebrahimi, Kimia Ghaffari, Mehrdad Hashemi, Reza Shirkoohi,

Background: Baculoviral inhibitor of apoptosis repeat-containing 5 (BIRC5) gene is an inhibitor of apoptosis that expresses in human embryonic tissues but it is absent in most healthy adult tissues. The copy number of BIRC5 has been indicated to be highly increased in tumor tissues; however, its association with the age of onset in breast cancer is not well understood. Methods: Forty tumor tiss...

Journal: :research in molecular medicine 0
zohreh hojati genetics division, biology department, faculty of sciences, university of isfahan, isfahan, iran zeinab hallajian genetics division, biology department, faculty of sciences, university of isfahan, isfahan, iran abolghasem esmaeili genetics division, biology department, faculty of sciences, university of isfahan, isfahan, iran majid motovali-bashi genetics division, biology department, faculty of sciences, university of isfahan, isfahan, iran hosein tabatabaeian genetics division, biology department, faculty of sciences, university of isfahan, isfahan, iran

background: amplification of her2 is seen in 20-30% of breast cancer cases. measurement of her2 gene amplification appears to be of vital importance in planning the treatment schedule for patients with breast carcinoma. the aim of our study was to evaluate her2 amplification status in malignant and benign breast tumors by differential pcr (dpcr). materials and methods: the genomic dna was extra...

Ardeshir Ghavamzadeh, Fatemeh Nevisi, Gholamreza Javadi, Hossein Pashaiefar, Kamran Alimoghaddam, Marjan Yaghmaie, Masoud Iravani,

Background: The analysis of the gene copy number alterations in tumor samples are increasingly used for diagnostic and prognostic purposes in patients with gastric cancer (GC). However, these procedures are not always applicable due to their invasive nature. In this study, we have analyzed the copy number alterations of five genes (HER2, MDM2, c-MYC, c-MET, and TP53) with a fixed relevance for ...

Background & Objective: The her2 amplification plays an important role in breast cancer management. Therefore, there is a need for using supplementary molecular methods in IHC equivocal cases. Present study has been conducted to determine the effects of clinicopathological variables on her2 gene amplification by chromogenic in situ hybridization (CISH) in IHC ...

Journal: :iranian biomedical journal 0
kimia ghaffari mehrdad hashemi elmira ebrahimi reza shirkoohi

background: baculoviral inhibitor of apoptosis repeat-containing 5 (birc5) gene is an inhibitor of apoptosis that expresses in human embryonic tissues but it is absent in most healthy adult tissues. the copy number of birc5 has been indicated to be highly increased in tumor tissues; however, its association with the age of onset in breast cancer is not well understood. methods: forty tumor tiss...

الماسی, محمد امین, بابازاده بدوستانی, علیرضا,

Background and purpose: In humans, SRY (sex-determining region of the Y chromosome) is the major gene for the sex determination which is found in normal XY males and rarely in XX males, and it is absent from normal XX females and from many XY females. There are several methods which can indicate a male genotype by amplification of SRY gene. The aim of this study was identification of the SRY ge...

Abbas Akhavan Sepahi Esmaeil Ghorbanalinezhad Nour Amirmozafari Ramezanali Khavari-nejad

Mycoplasmas hominis, Mycoplasmas genitalium and Ureaplasma urealyticum are associated with infections of the genitourinary tract, reproductive failure, and neonatal morbidity and mortality. A multiplex PCR was developed for simultaneously detection of these Mycoplasmas species in a single amplification reaction. The total number of 104 samples was collected from 104 women’s genital specimens wi...

Journal: :The American Journal of Pathology 1999

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