نتایج جستجو برای: chromosomal aberration
تعداد نتایج: 53135 فیلتر نتایج به سال:
Cytogenetics study using combination of conventional cytogenetics and fluorescent insitu hybridization was carried out in 171 pediatric acute lymphoblastic leukemia patients subgrouped to B-ALL (n=126) and T-ALL (n=45) by bone marrow morphology and immunophenotype. The chromosomal aberration frequency in B-ALL and T-ALL was 79% and 71%, respectively. TEL/AML1 translocation was detected in 28% o...
BACKGROUND Patients with syndromic features frequently suffer from recurrent respiratory infections, but little is known about the spectrum of immunological abnormalities associated with their underlying chromosomal aberrations outside the well-known examples of Down and DiGeorge syndromes. Therefore, we performed this retrospective, observational survey study. METHODS All members of the Euro...
The aim of the present study was to evaluate Vitamin C (VC) as a potent natural antioxidant to mitigate the genotoxic effects of Arsenic trioxide and sodium fluoride in Swiss albino mice in vivo. The study was divided into eight groups consisting of control treated with normal saline (Group I), Group II, III, IV, V, VI, VII and the VC group with only Vitamin C (500 mg/kgbw). Arsenic trioxide (4...
Background: understanding the genomic alteration induced by ionizing radiation still remains to be a methodological challenge in genetic field. The energy released from this type of radiation can potentially causes structural and numerical alterations in lymphocytes, which in turn converts them into abnormal tumor cells. Chromosomal abnormalities associated with specific type of hematological m...
Chromosomal aberration leading to congenital malformations is an important cause for infant mortality. Forty five infants with congenital malformations affecting various systems were screened by photokaryotyping for evidence of cytogenetic abnormalities after taking thorough family and obstetric history. Among the cases multiple malformations suggestive of Down’s Syndrome was the commonest. The...
One hundred and four out of 110 patients in a residential institution for mental retardates were examined clinically and cytogenetically. Both conventional and folate deficient media were employed in order to detect both conventional chromosomal abnormalities and rare fragile sites. Conventional abnormalities were detected in 18 cases (17%). Rare folate sensitive fragile site at 2q13 was detect...
The Prader-Willi syndrome is frequently associated with cytogenetic abnormality involving chromosome 15.1 This report presents a new case of this syndrome with the karyotype 45,XX,-15,-19, +der(19),t(15 ;19)(ql2;ql3). The child was born at 8 months' gestation to young, unrelated parents. The mother's first pregnancy resulted in spontaneous abortion after 3 months. At birth, the baby (weight 240...
A 14-day subchronic genotoxicity of Nimesulide was evaluated by employing mouse bone marrow chromosomal aberration test. The Nimesulide administered orally for 2 weeks at the rate of 1.5, 2.5, 5 mg/kg body weight in swiss albino mice. The results show decreased mitotic activity in all groups of Nimesulide treatments. Similar results concerning the chromosomal aberrations revealed in all treated...
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