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Latest Cytogenetics Stories

New Study Offers Evidence Against 'Rotting Y' Chromosome Theory
2012-02-23 06:04:12

Males of the world, fear not -- researchers have determined that the chromosome which determines maleness is not shrinking after all, and concerns that the gender could be headed for extinction are apparently unfounded. The study, which was led by Jennifer Hughes and David Page of the Whitehead Institute for Biomedical Research and the MIT Department of Biology, have compared the genes of the human Y chromosome to those of chimpanzees and rhesus macaques, according to Guardian Science...

2012-02-21 07:30:00

REHOVOT, Israel, February 21, 2012 /PRNewswire/ -- Iris Sample Processing from Westwood, MA - a division of IRIS International, Inc. (NASDAQ GS:: IRIS) and BioView Ltd, (TASE: BIOV [http://www.tase.co.il/TASEEng/Management/GeneralPages/SimpleSearchResult.htm?objectId=&objectType=&securityType=&searchTerm=biov ] ) from Rehovot, Israel, announced that they have entered into an agreement appointing BioView as one of the worldwide distributors for Iris Sample...

2012-02-16 11:00:00

Study shows that where broken chromosome pieces sit within the nucleus impacts where they reconnect; reveals new guiding principles for cancer genomics BOSTON, Feb. 16, 2012 /PRNewswire-USNewswire/ -- That our chromosomes can break and reshuffle pieces of themselves is nothing new; scientists have recognized this for decades, especially in cancer cells. The rules for where chromosomes are likely to break and how the broken pieces come together are only just now starting to come...

Image 1 - Chromosome Analyses Of Prickly Pear Cacti Reveal Southern Glacial Refugia
2012-02-15 04:21:46

Analysis of chromosome number variation among species of a North American group of prickly pear cacti (nopales) showed that the most widespread species encountered are of hybrid origin. Those widespread species likely originated from hybridization among closely related parental species from western and southeastern North America. This study was published in the open access journal Comparative Cytogenetics. The prickly pear cacti (of the genus Opuntia) are endemic to the Americas. The genus...

2012-02-13 09:00:00

REDWOOD CITY, Calif., Feb. 13, 2012 /PRNewswire/ -- Verinata Health, Inc., a privately-held company dedicated to maternal and fetal health, today announced the presentation of top-line results from its prospective, blinded, multicenter validation study to detect fetal chromosomal aneuploidies, or an abnormal number of chromosomes, across the entire genome. The study was specifically designed to include all samples with any abnormal karyotype in order to emulate real-world testing in which...

2012-02-10 00:07:51

While both tests look for the same thing, chromosomal microarray finds more, says New York-Presbyterian/Columbia researcher who led nationwide study A nationwide, federally funded study has found that testing a developing fetus' DNA through chromosomal microarray (CMA) provides more information about potential disorders than does the standard method of prenatal testing, which is to visually examine the chromosomes (karyotyping). The results of the 4,000-plus-participant clinical study are...

2012-02-02 15:00:00

SAN DIEGO, Feb. 2, 2012 /PRNewswire/ -- Sequenom, Inc. (NASDAQ: SQNM), a life sciences company providing innovative genetic analysis solutions, today announced that a new publication of an independent multi-center study on Sequenom Center for Molecular Medicine's MaterniT21(TM) laboratory-developed test (LDT) appears today in the online issue of Genetics in Medicine. The study demonstrated the LDT can detect fetal trisomy 21, 18 and 13 with high accuracy from a maternal blood sample and will...

2012-01-30 08:05:57

Stress-induced genomic instability facilitates rapid cellular adaption in yeast Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. In their latest study, researchers at the Stowers Institute for Medical Research were able to show that under stressful conditions yeast genomes become unstable, readily acquiring or...

2012-01-27 08:00:00

SAN JOSE, Calif., Jan. 27, 2012 /PRNewswire/ -- Aria Diagnostics, a molecular diagnostics company, today announced the publication of a study showing that Aria's technology -- a directed non-invasive approach to cell-free DNA (cfDNA) analysis in maternal blood using a proprietary algorithm -- enabled non-invasive detection of Trisomy 21 (associated with Down syndrome) and Trisomy 18 (associated with Edwards syndrome). The data appear online in the American Journal of Obstetrics...

2012-01-26 11:00:00

SAN JOSE, Calif., Jan. 26, 2012 /PRNewswire/ -- Aria Diagnostics, a molecular diagnostics company, today announced the publication of an independent blinded study that examines the accuracy of its non-invasive prenatal test for the detection of Trisomy 21 (associated with Down syndrome) and Trisomy 18 (associated with Edwards syndrome). The study showed that the test, coupled with a proprietary algorithm to assess individualized risk for these trisomies, distinguished 100...