Sir, We have read the article published in your journal by Taylor et al. (2014) with much interest. In this review the authors properly summarize the mechanisms, origins and incidence of chromosomal mosaicism in humans. The review is rigorous, exhaustive and very well-documented, and therefore we congratulate the authors for their work. Nevertheless, we find that some relevant information about...

Introduction. The presence of aneuploidy in patients diagnosed with chronic lymphocytic leukemia (CLL), except trisomy 12, is considered quite uncommon. Hyperdiploidy or near-tetraploidy (occurring 1?3% all CLL patients) usually confer a poor prognosis. Case report. We report patient progressive phase near?triploid karyotype. prognosis the disease was more precisely determined by applying cytog...

DNA ploidy has been determined using flow cytometry in 23 nonmalignant and 34 malignant (primary and metastatic) mammary tumors from 46 dogs. This parameter was compared with clinical stage, histology, and estrogen and progesterone receptor analysis. Twenty-one of 34 cancers (61.8%) from 32 dogs were DNA aneuploid. Aneuploidy was also found in 4 of 23 nonmalignant tumors (17.4%) from 20 dogs. R...

BACKGROUND Prognostic biomarkers are needed for superficial gastroesophageal adenocarcinoma (EAC) to predict clinical outcomes and select therapy. Although recurrent mutations have been characterized in EAC, little is known about their clinical and prognostic significance. Aneuploidy is predictive of clinical outcome in many malignancies but has not been evaluated in superficial EAC. METHODS ...

The traditional "gold standard" for prenatal diagnosis of chromosome abnormalities involves analysis of banded chromosomes obtained from cultured amniotic fluid or chorionic villus cells. Most studies are performed because of increased risk of aneuploidy of chromosomes 13, 18 and 21. It constitute 65-85% of all chromosome aberrations diagnosed prenataly. At present more rapid (in 1-3 days) meth...

A technique in which mouse eggs are stimulated to develop parthenogenetically following their brief incubation in 7% ethanol in PBS is described. Very high rates of activation were achieved, and a detailed analysis presented of the class of parthenogenone which develops a single haploid pronucleus following second polar body extrusion. As preliminary studies on presumptive haploid morulae indic...

OBJECTIVE The study aimed to validate the efficacy of detection of fetal cell-free DNA in maternal plasma of trisomy 21, 18 and 13 in a clinical setting. METHODS A total of 2340 women at high risk for Down syndrome based on maternal age, prenatal history or a positive sesum or sonographic screening test were offered prenatal noninvasive aneuploidy test. According to the prenatal noninvasive a...

The prevalence of deoxyribonucleic acid (DNA) aneuploidy in 297 samples from 38 patients with ulcerative colitis of varying duration was investigated by flow cytometry. In 12 patients colitis was complicated by the development of colorectal carcinoma: one had three synchronous carcinomas. Only four of 14 carcinomas were DNA aneuploid. Deoxyribonucleic acid aneuploidy occurred focally in the col...