Chromosome 7 News and Research

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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.

New technique to study genetic changes could enhance cancer diagnosis

Large-scale changes to the structure of the genome are often seen in cancer cells. Scientists at the Babraham Institute in Cambridge, UK, have found a way to detect these changes, which could enhance cancer diagnosis and aid the use of targeted treatments.

4 Jul 2017

Study indicates new element involved in genome instability

Genome instability is the main risk factor in the development of tumours in humans. Understanding how, where, when and why these mutations are produced in DNA is one of the great objectives of the global scientific community.

30 Jun 2017

Existing drugs could help subgroup of patients with osteosarcoma, suggest scientists

A subgroup of patients with osteosarcoma - a form of bone cancer - could be helped by an existing drug, suggest scientists from the Wellcome Trust Sanger Institute and their collaborators at University College London Cancer Institute and the Royal National Orthopaedic Hospital NHS Trust.

23 Jun 2017

MIT biologists identify how the immune system eliminates genetically imbalanced cells

Most living cells have a defined number of chromosomes: Human cells, for example, have 23 pairs. As cells divide, they can make errors that lead to a gain or loss of chromosomes, which is usually very harmful.

20 Jun 2017

Penn/CHOP research helps to better understand cause of pediatric and treatment-related leukemias

Certain pediatric leukemias share a common underlying cause with treatment-related secondary leukemias.

16 Jun 2017

Impairment of specific gene increases susceptibility to opioid addiction and binge eating, study shows

Impairment of a particular gene raises increases susceptibility to opioid addiction liability as well as vulnerability to binge eating according to a new study.

13 Jun 2017

Anorexia nervosa linked to genetic anomalies on chromosome 12

A large-scale, international whole-genome analysis has now revealed for the first time that anorexia nervosa is associated with genetic anomalies on chromosome 12.

12 Jun 2017

New cancer drug shows promise to treat leukemia in mouse models

Almost 6,000 new cases of acute lymphoblastic leukemia, or ALL, are expected to be diagnosed this year in the United States. The blood cancer can affect both children and adults.

9 Jun 2017

Study finds evidence that genes influence empathy

New research has found empathy may have a genetic component that also influences personality, cognition, and psychiatric conditions. Further, although not a novel finding, researchers noted women generally performed better on a test used to gauge empathy than their male counterparts.

9 Jun 2017

Researchers uncover protective mechanism of rotifers that may have implications for aging research

Rotifers are tough, microscopic organisms highly resistant to radiation and repeated cycles of dehydration and rehydration.

6 Jun 2017

Researchers find new way to block type 1 diabetes

Researchers at The Jackson Laboratory, Cyteir Therapeutics and collaborating institutions have found a way to protect beta cells from destruction -- achieving a longtime, elusive goal that could lead to therapies preventing type 1 diabetes (T1D).

1 Jun 2017

Phase 2 clinical study examines Alzheimer's disease drug to treat adults with Down syndrome

A phase 2 clinical trial in young adults with Down syndrome of a drug being investigated for the treatment of Alzheimer's disease supports further investigation of its potential.

1 Jun 2017

Collaborative effort to develop rare disease patient registries

The Orphan Disease Center in the Perelman School of Medicine at the University of Pennsylvania will collaborate with Pulse Infoframe Inc., a medical informatics company, to develop rare disease patient registries aimed at enabling international collaboration to better understand these diseases, as well as accelerate and improve clinical studies to develop new therapies.

31 May 2017

Innate genetic advantage contributes to better outcomes in newborn infant girls than boys, research shows

Newborn infant girls have better outcomes than their male counterparts due to an innate genetic advantage in responding to acute infections, according to new research from RCSI.

26 May 2017

Scientists identify key gene in 22q11.2 that contributes to genitourinary birth defects

The 22q11.2 region of human chromosome 22 is a hotspot for a variety of birth defects. Scientists learned about this region because it is deleted in about 1 in 4,000 births, causing the loss or duplication of up to 40 genes.

25 May 2017

UCLA study characterizes brain differences between people with genetic risk for schizophrenia, autism

A UCLA study characterizes, for the first time, brain differences between people with a specific genetic risk for schizophrenia and those at risk for autism, and the findings could help explain the biological underpinnings of these neuropsychiatric disorders.

24 May 2017

Research findings may provide answers for infertility in older women

Findings from new research led by the Monash Biomedicine Discovery Institute and University College London may finally resolve, and potentially provide answers, as to why older women have higher incidences of miscarriage and have babies with chromosomal abnormalities.

18 May 2017