نتایج جستجو برای: chromosomal aberration
تعداد نتایج: 53135 فیلتر نتایج به سال:
BACKGROUND Primary adenocarcinoma of thymus is extremely rare. CASE PRESENTATION This is a case of primary adenocarcinoma with intestinal differentiation and focal mucin production in the thymus. Thymic cyst was associated with this tumor. Intestinal differentiation was confirmed by immunohistochemical stain with positivity for CDX-2, CK20, villin, MOC31 and focal positivity of CK7. Array com...
BACKGROUND So-ochim-tang-gamibang (SOCG) is a traditional Korean medicine frequently used for depression in the clinical field. In this study, we evaluated the potential genotoxicity of SOCG using three standard batteries of tests as part of a safety evaluation. METHODS SOCG was evaluated for potential genotoxic effects using the standard three tests recommended by the Ministry of Food and Dr...
This study was conducted to evaluate the level of chromosomal damage in perinatal asphyxia and correlate it with severity of asphyxia. Fourty term neonates with asphyxia and twenty term babies without asphyxia were included in this case control study. Blood samples were collected within 24 hours of birth for karyotyping and oxidative stress by serum malondealdehyde (MDA) estimation. The degree ...
Genomic instability has profound effects on cellular phenotypes. Studies have shown that pluripotent cells with abnormal karyotypes may grow faster, differentiate less and become more resistance to apoptosis. Previously, we showed that microarray gene expression profiles can be utilized for the analysis of chromosomal aberrations by comparing gene expression levels between normal and aneuploid ...
The frequencies of chromosomal aberrations in Giemsa-bar:ded preparations obtained from peripheral blood cultures of 5 kwashiorkor, 3 marasmic and 2 marasmickwashiorkor patients were investigated. Analysis of 1120 metaphases from these patients revealed an aberration rate of 5. 80 per cent as against a frequency of 1. 66 per cent seen in control children. However, no particular chromosome or ch...
Genetic variation in MTHFR gene might explain the interindividual differences in the reduction of DNA repaired and the increase of chromosome breakage and damage. Nowadays, chromosomal rearrangement is recognized as a major cause of lymphoid malignancies. In addition, the association of MTHFR polymorphisms with aneuploidy was found in several studies, making the MTHFR gene as a good candidate f...
Euphorbia nivulia is a tall deciduous tree belonging to the family Euphorbiaceae. It is mainly found in India and is reported to have tremendous therapeutic potential. Herbal medicine may cause damage to genetic material which may lead to an increased risk of cancer and other diseases. Hence, it becomes important to assess the genotoxicity assessment of herbal medicines. The present study was c...
Many types of tumors exhibit characteristic chromosomal losses or gains, as well as local amplifications and deletions. Within any given tumor type, sample specific amplifications and deletions are also observed. Typically, a region that is aberrant in more tumors, or whose copy number change is stronger, would be considered as a more promising candidate to be biologically relevant to cancer. W...
The genotoxic effects of the industrial effluent from a paint (100%, 50%, 25%, 10%, 5%, 1%, 0.50% and 0.25%) manufacturing company in Ikotun, Lagos was evaluated using the root meristem cells of Allium cepa. chromosomal aberration assays were used to determine the mitotic index and chromosome aberration rate. There was a significant difference (p<0.05) in the average root length of Allium cepa ...
PURPOSE The problem of infectious diseases and drug resistance is becoming increasingly important worldwide. Silver is extensively used as an anti-infective agent, but it has significant toxic side effects. In this regard, it is topical to develop new silver compounds with high biological activity and low toxicity. This work is aimed to study DNA damage and chromosomal aberrations in blood cell...
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