Results 251 to 260 of about 125,822 (294)
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Chromosome abnormalities in leiomyosarcomas
Cancer Genetics and Cytogenetics, 1988Short-term cultures from seven soft tissue leiomyosarcomas were investigated cytogenetically. Sufficient mitoses for chromosome analysis were obtained in six cases, four of which had only normal karyotypes. In one tumor, an intramuscular leiomyosarcoma of the lower arm, a variety of nonclonal structural and numerical aberrations were found in two ...
M, Nilbert +6 more
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Chromosome abnormalities in sperm of individuals with constitutional sex chromosomal abnormalities
Cytogenetic and Genome Research, 2005The most common type of karyotype abnormality detected in infertile subjects is represented by Klinefelter’s syndrome, and the most frequent non-chromosomal alteration is represented by Y chromosome long arm microdeletions. Here we report our experience and a review of the literature on sperm sex chromosome aneuploidies in these two conditions.
FERLIN, ALBERTO +2 more
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Screening for chromosomal abnormality
Seminars in Ultrasound, CT and MRI, 1998Screening for fetal abnormalities has become one of the most high profile health care issues of modern times. This issue is predicated on major advances in health care technology that permit wider detection of fetal anomalies, including the development of more advanced biochemical markers and improvements in ultrasound imaging.
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Chromosome abnormalities in CML
Baillière's Clinical Haematology, 1987The Ph chromosome is the hallmark of CML, where it is found in more than 90% of the cases. Cytogenetically, it usually results from a t(9;22)(q34;q11). The Ph arises in a stem cell and in chronic phase is found in all haematopoietic cell lineages, although it causes only increased granulopoiesis, and sometimes increased thrombopoiesis; furthermore ...
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Chromosomal abnormalities in Waldenström's macroglobulinemia
Cancer Genetics and Cytogenetics, 1992We report the results of cytogenetic studies of direct bone marrow (BM) preparations and of short-term BM and peripheral blood (PB) cultures from 17 patients with Waldenström's macroglobulinemia. We noted clonal chromosome changes in 10 patients.
Carbone P. +5 more
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Chromosomal abnormalities in oocytes
Molecular and Cellular Endocrinology, 2001Since the beginning of in vitro fertilization (IVF), basic research has provided insight in the field of human reproduction, especially in genetics. Indeed, the contribution of chromosomal abnormalities to oocyte disorders and impaired embryonic development is now well known.
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Chromosome abnormalities in leukemia.
Journal of Clinical Oncology, 1979The consistent occurrence of nonrandom chromosome changes in human malignancies suggests that they are not trivial epiphonomena. Whereas we do not understand their significance at present, one possible role which they may fulfill is to provide the chromosomally aberrant cells with a proliferative advantage as the result of alteration in the number or ...
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Chromosome Abnormality in Cattle
Nature, 1966RECENTLY, a chromosome abnormality found in three cases of lymphatic leukaemia in cattle was described1. This communication reports my latest findings concerning this abnormality. It appears that in Sweden cattle chromosomes have only once before been investigated using modern techniques.
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Sex Chromosomes and Sex Chromosome Abnormalities
Clinics in Laboratory Medicine, 2011This article focuses on constitutional sex chromosome abnormalities detected by conventional cytogenetics and fluorescence in situ hybridization. The author discusses the two general classifications of abnormalities: numerical and structural. Also included are descriptions of unique aspects of X and Y chromosomes, technological advances in detection ...
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Chromosome Abnormalities in Human Sperm
1985The ability to analyze human sperm chromosome complements after penetration of zona pellucida-free hamster eggs provides the first opportunity to study the frequency and type of chromosomal abnormalities in human gametes. Two large-scale studies have provided information on normal men.
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