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.
Ryogen LLC, a genomic start-up company, has been awarded a new patent titled “Isolated Genomic Polynucleotide Fragments from Chromosome 7”.
Oncologists have had their hands tied because more than half of all human cancers have mutations that disable a protein called p53. As a critical anti-cancer watchdog, p53 masterminds several cancer-fighting operations within cells. When cells lose p53, tumors grow aggressively and often cannot be treated.
China Medical Technologies, Inc., a leading China-based medical device company that develops, manufactures and markets advanced in-vitro diagnostic products, today announced that the Company has received approval for its Leukemia BCR/ABL fusion gene detection FISH Probe (the "Leukemia BCR/ABL FISH Probe") from the State Food and Drug Administration of China (the "SFDA").
Investigators discover cellular mechanisms that may impact the decline of both innate and adaptive immune functions that increase the susceptibility to various infectious agents, cancer and diseases in the elderly say experts at the annual meeting of the American College of Allergy, Asthma and Immunology (ACAAI) in Miami Beach, Fla.
A compound already used to treat pneumonia could become a new therapy for an inherited muscular wasting disease, according to researchers at the University of Oregon and the University of Rochester School of Medicine and Dentistry in New York.
The Autism Consortium, an innovative collaboration of researchers, clinicians, funders and families dedicated to catalyzing research and enhancing clinical care for autism spectrum disorders (ASDs), held its fourth annual symposium on October 28th, 2009, at Harvard Medical School in Boston.
NIH-supported scientists at Seaside Therapeutics in Cambridge, Mass., are beginning a clinical trial of a potential medication designed to correct a central neurochemical defect underlying Fragile X syndrome, the most common inherited cause of intellectual disability. There has to date been no medication that could alter the disorder's neurologic abnormalities. The study will evaluate safety, tolerability, and optimal dosage in healthy volunteers.
Researchers at the University of Michigan Comprehensive Cancer Center have discovered what leads to two genes fusing together, a phenomenon that has been shown to cause prostate cancer to develop.
Since the completion of the human genome sequence, a question has baffled researchers studying gene control: How is it that humans, being far more complex than the lowly yeast, do not proportionally contain in our genome significantly more gene-control proteins?
An international team of researchers led by geneticist Jonathan Sebat, Ph.D., of Cold Spring Harbor Laboratory (CSHL), has identified a mutation on human chromosome 16 that substantially increases risk for schizophrenia.
Professor Suzanne Cory, the former director of the Walter and Eliza Hall Institute of Medical Research in Melbourne, Australia, has been named the recipient of the 2009 Pearl Meister Greengard Prize.
A team of geneticists at Los Alamos National Laboratory, together with a consortium of international researchers, has recently proposed a set of standards designed to elucidate the quality of publicly available genetic sequencing information.
Novartis announced today that Tasigna (nilotinib) 200 mg capsules met its primary endpoint in the first head-to-head comparison with the company's groundbreaking drug Gleevec (imatinib mesylate) tablets*. Tasigna produced faster and deeper responses than Gleevec when given as first-line therapy for adult patients with newly diagnosed Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase. Tasigna was well tolerated in the study.
Focal nodular hyperplasia (FNH) is a lesion found in an otherwise normal liver, and is considered to be parenchyma overgrowth responsive to increased blood flow secondary to vascular malformations.
Gene Security Network, Inc. (GSN) today announced a substantial price reduction for its 24 Chromosome Aneuploidy Screening with Parental SupportTM. Effective immediately, pricing has been restructured to a single flat fee for testing of up to 24 embryos in an in vitro fertilization (IVF) cycle.
For decades, scientists have thought the faulty neural wiring that predisposes individuals to behavioral disorders like autism and psychiatric diseases like schizophrenia must occur during development. Even so, no one has ever shown that a risk gene for the disease actually disrupts brain development.
Researchers identified a new chromosomal abnormality in acute lymphoblastic leukemia (ALL) that appears to work in concert with another mutation to give rise to cancer. This latest anomaly is particularly common in children with Down syndrome.
The human genetic disease dyskeratosis congenita (DKC) is an autosomal dominant disease that leads to abnormalities in tissues with a rapid cell turnover - the skin, nails, bone marrow, lungs and gut. Patients with DKC experience life-threatening symptoms. Bone marrow failure increases their risk of fatal infections and cancer. Many die before the age of 30 and management of the disease is limited to trying to treat its symptoms.
The cancer caused by this new cancer gene is called adenoid cystic carcinoma and is a slow-growing but deadly form of cancer. The research group can now show that the gene is found in 100% of these tumours, which means that a genetic test can easily be used to make a correct diagnosis.
Researchers at the University of Gothenburg, Sweden, have identified two genes believed to play a role in the development of endometrial cancer. These results may eventually lead to better diagnosis and treatment of this increasingly common form of cancer.
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