نتایج جستجو برای: early onset breast cancer
تعداد نتایج: 1725716 فیلتر نتایج به سال:
Inherited breast-ovarian cancer was described in 1866. The underlying genetic defects in BRCA1/2 were demonstrated 128 years later. We now have 10 years of experience with genetic testing in BRCA kindreds. The majority of breast cancer kindreds (familial breast cancer) do not demonstrate ovarian cancer and are not associated with BRCA mutations. The effect of early diagnosis and treatment is mo...
Although germline TP53 mutations have been identified in women with breast cancer from families meeting Li-Fraumeni criteria, their contribution to breast cancer per se is not well known, but is thought to be minimal. We aimed to determine the prevalence of germline TP53 mutations in subgroups of early-onset breast cancer. Germline TP53 mutation status was assessed by DNA sequencing, screening ...
Germ line BRCA1 and/or BRCA2 mutations were screened in 50 Turkish breast and/or ovarian cancer patients composed of hereditary, familial, early onset and male cancer groups. Genomic DNA samples were tested by heteroduplex analysis and DNA sequencing. Two truncating BRCA2 mutations, one novel (6880 insG) and one previously reported (3034 delAAAC), were found in two out of six (33%) hereditary b...
Essential meiotic endonuclease 1 homolog 1 (EME1) is a key DNA repair protein that participates in the recognition and repair of DNA double-strand breaks. Deficiency of the EME1 gene can lead to spontaneous genomic instability and thus contribute to tumorgenesis. We hypothesized that the exon variants of EME1 confer genetic susceptibility to breast cancer. In a case-control study of 748 breast ...
Serum copper, zinc and the cu/zn ratio were measured in 55 patients with breast disease (20 with benign breast disease and 35 patients with breast cancer) and 30 healthy subjects. The mean serum copper levels were higher in breast cancer than in benign breast diseases (127.5 µg/dl versus 92.4 µg/dl) (P<0.0005) and controls (127.5 µg/dl versus 75.6 µg/dl) (P<0.0005). Patients with advanced breas...
background :breast cancer is the most common cancer among females that will cause death ifit does not be recognized and cured. one out of eight iranian women in 40-55years old is likely to develop breast cancer. early detection of breast cancerby screening programs is a useful approach in controlling the disease. methods :in this descriptive study, 196 female healthcare providers were selected ...
background: we studied the patterns of premenopausal and postmenopausal breast cancer incidence and its established risk factors in iran in 2010. in addition, we estimated the 5-year prevalence of breast cancer in the country. methods: we performed an internet and library literature review. we used national cancer registry data, demographic health surveys, national censuses and world bank data ...
Background: Based on the reports, high frequency of special alleles of HLA class II genes might be associated with susceptibility to or protective from a particular cancer. These alleles might vary depending on the geographical region. Here we investigate the association between alleles of HLA class II genes and breast cancer in Iranian women.Methods: 100 patients with pathologically proved bre...
background: germ-line mutations of brca1 and brca2 genes are responsible for approximately 25-30% of dominantly inherited familial breast cancers; still a big part of genetic component is unknown. the aim of this study was to investigate genetic causes of familial breast cancer in a pedigree with recessive pattern of inheritance. methods: we applied exome sequencing as a useful approach in hete...
With regard to high cancer incidence, as one of the major mortality causes worldwide, following human societies industrialization in recent years breast cancer, dealt with in the present article, has got a particular impact on women who possess a pivotal role in family and society. Thus, adoption of effective diagnostic procedures in the early stages of the disease is very important, which must...
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