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.
Ewing's sarcoma is a bone cancer commonly diagnosed in about 250 U.S. teenagers per year. If early chemotherapy is effective, improvement can be durable. But for children and teens who respond poorly to a first attempt at chemotherapy or if the disease spreads, long-term survival can be less than 10 percent.
A large study in people at risk of diabetes has found a direct association between the presence of a small genetic alteration in a hormone receptor and increased body fat and insulin resistance. The results, to be presented Tuesday at The Endocrine Society's 94th Annual Meeting in Houston, suggest an adverse role for a previously described genetic variant, the BclI polymorphism.
The number of babies born with birth defects (major congenital anomalies) across Europe has fallen over the decade (2000-2009), University of Ulster research has revealed.
The hormone oxytocin - often referred to as the "trust" hormone or "love hormone" for its role in stimulating emotional responses - plays an important role in Williams syndrome (WS), according to a study published June 12, 2012, in PLoS One.
Researchers at McGill University have discovered the cause of an inherited form of epilepsy. The disease, known as double-cortex syndrome, primarily affects females and arises from mutations on a gene located on the X chromosome. Drs. Susanne Bechstedt and Gary Brouhard of the Department of Biology have used a highly advanced microscope to discover how these mutations cause a malformation of the human brain.
Using data from its unique online research platform, 23andMe, a leading personal genetics company, has contributed to the finding of six novel genetic associations for early onset male pattern baldness (androgenetic alopecia) in a genome-wide association study now published online in the journal PLoS Genetics.
A transparent member of the minnow family is providing researchers at Weill Cornell Medical College in New York City with insight into human melanoma - a form of skin cancer - that may lead to new or repurposed drug treatments, for skin and other cancers.
ARIAD Pharmaceuticals, Inc. today announced updated clinical data from the pivotal PACE trial of its investigational pan-BCR-ABL inhibitor, ponatinib, in patients with chronic myeloid leukaemia (CML) or Philadelphia-positive acute lymphoblastic leukaemia (Ph+ ALL), who are resistant or intolerant to dasatinib or nilotinib or who have the T315I mutation.
Bristol-Myers Squibb Company and Otsuka Pharmaceutical Europe Ltd., today announced six-year follow-up results from a Phase 3 randomised, open-label, dose-optimisation study of SPRYCEL (dasatinib) in Philadelphia chromosome-positive (Ph+) chronic-phase chronic myeloid leukaemia (CP-CML) adult patients resistant or intolerant to Glivec (imatinib).
The first U.S. population prevalence study of mutations in the gene that causes fragile X syndrome, the most common inherited form of intellectual disability, suggests the mutation in the gene - and its associated health risks - may be more common than previously believed.
Male doctors make more money than their female counterparts, even when factoring in medical specialty, title, work hours, productivity and a host of other factors, according to a comprehensive new analysis from researchers at the University of Michigan Health System and Duke University.
Researchers have identified a technique that could help them “pick the right egg” for in vitro fertilization treatment.
Degeneration of the axon and synapse, the slender projection through which neurons transmit electrical impulses to neighboring cells, is a hallmark of some of the most crippling neurodegenerative and brain diseases such as amyotrophic lateral sclerosis (ALS), Huntington's disease and peripheral neuropathy.
New research by scientists at the University of North Carolina School of Medicine may have pinpointed an underlying cause of the seizures that affect 90 percent of people with Angelman syndrome (AS), a neurodevelopmental disorder.
New hope has arrived for migraine sufferers following a Griffith University study with the people of Norfolk Island. Led by Professor Lyn Griffiths from the University's Griffith Health Institute, the team has identified a new region on the X chromosome as playing a role in migraine.
In a groundbreaking study, Yale School of Medicine researchers and colleagues at the University of Oxford have identified the chromosomal make-up of a human egg. This discovery may soon allow them to avoid using abnormal - or aneuploid - eggs during infertility treatments, and instead to pick eggs that are healthy enough for a successful in vitro fertilization (IVF) cycle.
Scientists at Rice University and the University of Texas MD Anderson Cancer Center have successfully profiled protein pathways found to be distinctive to leukemia patients with particular variants of the disease.
Verinata Health, Inc., a privately-held company dedicated to maternal and fetal health, today announced that physicians across the country are now using the verifi prenatal test.
Researchers have identified three new colorectal cancer risk loci, including one on the X-chromosome, bringing the total number of independent loci associated with the disease to 20.
Physicians and researchers at John Theurer Cancer Center at HackensackUMC, one of the nation's top 50 cancer centers, will present the latest findings in blood-cancer research at the 2012 American Society of Clinical Oncology (ASCO) annual meeting in Chicago on June 1-5. Their involvement in these studies is part of John Theurer Cancer Center's continued focus to bolster its research program.
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