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.

Study offers clues about how genetic mutations can increase risk of psychiatric disorders

Brain scans have revealed how a genetic mutation linked to major psychiatric disorders affects the structure, function and chemistry of the brain.

16 Aug 2016

New study uncovers how chromosomal changes impact tumor formation and growth

As with most cancers, triple-negative breast cancer (TNBC) cells have abnormal amounts of chromosomes or DNA copy number aberrations (CNAs) in their genomes.

16 Aug 2016

New model of Williams syndrome may shed light on neurobiology of the human social brain

In a study spanning molecular genetics, stem cells and the sciences of both brain and behavior, researchers at University of California San Diego, with colleagues at the Salk Institute for Biological Studies and elsewhere, have created a neurodevelopmental model of a rare genetic disorder that may provide new insights into the underlying neurobiology of the human social brain.

11 Aug 2016

New disease gene linked to shortened telomeres appears to raise risk of pulmonary fibrosis-emphysema

Johns Hopkins researchers say they have identified a new disease gene that, when mutated, appears to increase the risk in a small number of people of developing emphysema and a lung-scarring condition known as pulmonary fibrosis.

10 Aug 2016

Geneticists identify enzyme that regulates chromosome segregation during meiosis

GENETICISTS have identified an enzyme which regulates the production of sperm and egg cells in human reproduction.

10 Aug 2016

Researchers discover genetic changes in MSH3 gene in patients with hereditary colon cancer

The formation of large numbers of polyps in the colon has a high probability of developing into colon cancer, if left untreated.

28 Jul 2016

Study reveals insights into survival, surgical interventions for children with trisomy 13 and 18

Among children born with the chromosome disorders trisomy 13 or 18 in Ontario, Canada, early death was the most common outcome, but 10 percent to 13 percent survived for 10 years, according to a study appearing in the July 26 issue of JAMA.

27 Jul 2016

Alterations in genomic region linked to risk of ASD have distinctive effects on cognition, study reports

A new study in Biological Psychiatry reports that variations in 16p11.2, a region of the genome associated with risk of autism spectrum disorder (ASD), have distinct effects on cognition. The findings highlight the diversity of people with ASD.

19 Jul 2016

Scientists explore black box of genome biology

Scientists at Florida State University, Baylor College of Medicine and the Broad Institute of Harvard and MIT have broken ground in a little-understood area of human genetics.

19 Jul 2016

UC Davis scientists show how cells control DNA synthesis in mitochondria

Aging, neurodegenerative disorders and metabolic disease are all linked to mitochondria, structures within our cells that generate chemical energy and maintain their own DNA. In a fundamental discovery with far-reaching implications, scientists at the University of California, Davis, now show how cells control DNA synthesis in mitochondria and couple it to mitochondrial division.

18 Jul 2016

Gender matching may be beneficial to reduce risk of corneal transplant rejection and failure

A study of patients undergoing corneal transplants indicates that subtle differences between men and women may lead to poorer outcomes for a woman who has received a cornea from a male donor.

14 Jul 2016

JAX researchers find precise, reliable way to identify leukemia cells of origin

Every cancer starts with a single cell, and Jackson Laboratory researchers have found a precise and reliable way -- whole-genome profiling of open chromatin -- to identify the kind of cell that leads to a given case of leukemia, a valuable key to cancer prognosis and outcome.

11 Jul 2016

Study finds microRNA let-7 plays key role in restricting neuroblastoma

Great strides have been made in treating neuroblastoma, the most common cancer in infants and toddlers. However, advanced cases are often fatal, and children who survive often face life-long physical and intellectual challenges related to their treatment.

8 Jul 2016

Scientists discover X-chromosome-inherited type of osteogenesis imperfecta

Researchers from the University of Zurich and University Children's Hospital Zurich have discovered the first X-chromosome-inherited type of the congenital disease osteogenesis imperfecta, also known as brittle-bone disease.

6 Jul 2016

Researchers identify astroglia-mediated mechanism for causing FXS symptoms in mice

A study published today in the Journal of Neuroscience led by Yongjie Yang of Tufts University School of Medicine identifies an astroglial trigger mechanism as contributing to symptoms of fragile X syndrome in mice.

6 Jul 2016

LouLou Foundation, ODC announce 11 new grants for research on CDKL5 deficiency

LouLou Foundation and the Orphan Disease Center (ODC) in the Perelman School of Medicine at the University of Pennsylvania are pleased to announce the award of 11 new research grants into CDKL5 deficiency - a rare X-chromosome-linked genetic disorder that causes severe neuro-developmental impairment and early-onset, difficult-to-control seizures.

5 Jul 2016

Chromosome 7 News and Research

Study offers clues about how genetic mutations can increase risk of psychiatric disorders

New study uncovers how chromosomal changes impact tumor formation and growth

New model of Williams syndrome may shed light on neurobiology of the human social brain

New disease gene linked to shortened telomeres appears to raise risk of pulmonary fibrosis-emphysema

Geneticists identify enzyme that regulates chromosome segregation during meiosis

Researchers discover genetic changes in MSH3 gene in patients with hereditary colon cancer

Study reveals insights into survival, surgical interventions for children with trisomy 13 and 18

Alterations in genomic region linked to risk of ASD have distinctive effects on cognition, study reports

Scientists explore black box of genome biology

UC Davis scientists show how cells control DNA synthesis in mitochondria

Gender matching may be beneficial to reduce risk of corneal transplant rejection and failure

JAX researchers find precise, reliable way to identify leukemia cells of origin

Study finds microRNA let-7 plays key role in restricting neuroblastoma

Scientists discover X-chromosome-inherited type of osteogenesis imperfecta

Researchers identify astroglia-mediated mechanism for causing FXS symptoms in mice

LouLou Foundation, ODC announce 11 new grants for research on CDKL5 deficiency

Novel technique could help discover genes linked to complex traits in any animal model

Mitochondrial DNA levels may represent accurate, predictive measure of embryo viability in IVF

Study links proteins involved in cell division to insulin signaling

Study sheds more light on how bacteria rapidly causes infectious diseases

Professor Nancy Ip: Pioneering New Paths in Neurodegenerative Therapy

Utilizing process Raman in optimizing cultivated meat production

Exploring the G:Box and for high-quality imaging

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