Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 7, one copy inherited from each parent, form one of the pairs. Chromosome 7 spans about 159 million DNA building blocks (base pairs) and represents more than 5 percent of the total DNA in cells.
Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 7 likely contains about 1,150 genes.
Genes on chromosome 7 are among the estimated 20,000 to 25,000 total genes in the human genome.
The first detailed search of breast cancer genomes to uncover genomic rearrangements is published today. The team characterised the ways in which the human genome is broken and put back together in 24 cases of breast cancer.
Researchers from Children's Hospital Boston and Brigham and Women's Hospital have identified an important genetic cause of a devastating kidney disease that is the second leading cause of kidney failure in children, according to The NephCure Foundation.
Doctors and researchers from the John Theurer Cancer Center at Hackensack University Medical Center recently presented research updates and clinical trial results of more than 20 innovative studies at the American Society of Hematology (ASH) annual meeting from December 5-8, 2009.
Howard Hughes Medical Institute researchers have identified a naturally occurring human protein that helps prevent infection by H1N1 influenza and other viruses, including West Nile and dengue virus.
Researchers from the UC San Diego, School of Medicine and colleagues have identified a new gene, ETS-1, that is linked to human congenital heart defects. The landmark study, recently published online in the journal of Human Molecular Genetics, provides important insights into some of the most prevalent forms of congenital heart defects in humans, including ventricular septal defects and potentially hypoplastic left heart syndrome, a uniformly fatal heart abnormality.
Research from the Babraham Institute has revealed for the first time that genes work together by huddling in clusters inside the nucleus - the information centre of a cell. These findings, published in the online edition of the journal Nature Genetics, represent a paradigm shift in our understanding of how the genome is spatially organised in relation to gene expression.
Genomic Health, Inc. today announced results from five new studies on its Oncotype DX® breast cancer test, a multi-gene expression test that physicians currently use to predict the likelihood of chemotherapy benefit and recurrence risk for patients with early-stage breast cancer.
Is it a boy or a girl? Expecting parents may be accustomed to this question, but contrary to what they may think, the answer doesn't depend solely on their child's sex chromosomes.
Researchers have discovered a new explanation for differences in the severity of mental illness in males. The more excess copies of a certain gene, the more serious the handicap. The genetic defect is situated on the X-chromosome; and it is suspected that it is the amount of copies of the GDI1 gene that is responsible.
In a large Phase III clinical trial, Tasigna (nilotinib capsules) demonstrated greater efficacy over Gleevec (imatinib) in the treatment of adult patients with newly diagnosed Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase. The new clinical data were just presented as a late breaking abstract at the 51st annual meeting of the American Society of Hematology (ASH), in New Orleans, Louisiana.
Enzo Biochem, Inc. announced today that its Enzo Clinical Lab division has entered into an exclusive marketing partnership covering the States of New York and New Jersey with privately-owned Ikonisys, Inc., of New Haven, CT, relating to Ikonisys’ proprietary oncoFISH® cervical test, a laboratory developed test for cervical cancer prevention.
In a large clinical trial, nilotinib demonstrated greater efficacy over the current gold standard treatment, imatinib, in adult patients with newly diagnosed Philadelphia chromosome-positive chronic myeloid leukaemia (Ph+ CML) in the chronic phase.
Two medications approved as treatment for drug-resistant chronic myeloid leukemia continue to provide patients with quicker, better responses as a first treatment than the existing front-line drug, researchers at The University of Texas M. D. Anderson Cancer Center reported at the 51st Annual Meeting of the American Society of Hematology.
ARIAD Pharmaceuticals, Inc. today announced positive clinical data from an ongoing Phase 1 study of its investigational, pan-BCR-ABL inhibitor, AP24534, in patients with advanced hematological cancers.
A new genetic approach to treating sickle cell disease is showing promising results in mice, report researchers from Children's Hospital Boston. By inactivating a gene they previously discovered to be important in the laboratory, they were able to boost production of a healthy fetal form of hemoglobin in the mice, potentially compensating for the defective adult hemoglobin that causes red blood cells to "sickle" and obstruct blood flow.
Mayo Clinic researchers have proven the longstanding theory that changes in the number of whole chromosomes -- called aneuploidy -- can cause cancer by eliminating tumor suppressor genes.
Results from a phase II clinical trial indicate a novel drug may provide a treatment option for chronic myeloid leukemia (CML) patients who do not respond to current therapies, researchers from The University of Texas M. D. Anderson Cancer Center report today at the 51st Annual Meeting of the American Society of Hematology.
Pediatric oncologists have identified specific genes, dubbed partner genes, that fuse with another gene to drive an often-fatal form of leukemia in infants. By more accurately defining specific partner genes, researchers expect to better predict which infants may benefit from particular treatments.
Scientists in Cambridge have discovered that the loss of a key segment of DNA can lead to severe childhood obesity. This is the first study to show that this kind of genetic alteration can cause obesity. The results are published today in Nature.
Leukemia and myeloproliferative disorders are serious and often deadly blood cancers. Research presented today at the 51st Annual Meeting of the American Society of Hematology introduces potential new treatment options and improved diagnostic methods for patients suffering from acute promyelocytic leukemia, chronic myeloid leukemia, infant acute lymphoblastic leukemia, and myelofibrosis that are based on a better understanding of the underlying genetic causes of these conditions.
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