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Current Chromosomes News and Events

Current Chromosomes News and Events, Chromosomes News Articles.
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Green toads with multiple genomes have ancestors that are only distantly related
Dr. Matthias Stoeck from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) and researchers from the University of Lausanne (Switzerland) and the Helmholtz-Centre for Environmental Research (UFZ) have just published an extensive phylogenetic tree for the Eurasian green toads. (2018-02-20)
New CRISPR-Cas9 tool edits both RNA and DNA precisely, U-M team reports
A tool that has already revolutionized disease research may soon get even better, thanks to an accidental discovery in the bacteria that cause many of the worst cases of meningitis. (2018-02-15)
Clues to aging found in stem cells' genomes
In fruit flies, repeating genetic elements shrink with age, but then expand in future generations, a resurgence that may help explain how some cells stay immortal. (2018-02-13)
Experimental therapy restores nerve insulation damaged by disease
When the body attacks its own healthy tissues in an autoimmune disease, peripheral nerve damage handicaps people and causes persistent neuropathic pain when insulation on healing nerves doesn't fully regenerate. (2018-02-12)
Study shows liver cells with whole genome duplications protect against cancer
Researchers at the Children's Medical Center Research Institute (CRI) at UT Southwestern have discovered that cells in the liver with whole genome duplications, known as polyploid cells, can protect the liver against cancer. (2018-02-09)
Scientists unlock the molecular secret behind long-lived bat species
Scientists have identified part of the molecular mechanism that gives long-lived bat species their extraordinary lifespans compared to other animals. (2018-02-07)
Active genetics technology opens new horizons
Employing CRISPR/Cas9 advancements, UC San Diego researchers are using new active genetics technology to reveal new fundamental mechanisms that control gene activity. (2018-02-06)
Genome wide association study of epigenetic aging rates in blood reveals a critical role for TERT
Researchers from several institutions, including, UCLA, Boston University, Stanford University and the Institute for Aging Research at Hebrew SeniorLife, analyzed blood samples from nearly 10,000 people to find that genetic markers in the gene responsible for keeping telomeres (tips of chromosomes) youthfully longer, did not translate into a younger biologic age as measured by changes in proteins coating the DNA. (2018-02-02)
Magnesium makes chromosomes
Japanese researchers report a new ion detector, MARIO. Using it, they show that changes in the intracellular concentration of free magnesium ions (Mg2+) is critical for the chromosome folding that must occur for cells to divide. (2018-02-01)
Bringing water to the fountain of youth
A new study of the European common frog, Rana temporaria, published in the advanced online edition of the journal Molecular Biology and Evolution, offers some fresh clues that challenge the conventional scientific wisdom on sex-chromosome evolution. (2018-01-30)
Scientists create a 3-D model of molecules in yeast linked to enzyme that lengthens chromosome tips
Through the haze of a sonogram screen, an expectant mother catches a glimpse of the growing baby within her. (2018-01-24)
Saarland University bioinformaticians compute gene sequences inherited from each parent
In the analysis of the human genome, one question researchers have so far left unanswered is how to differentiate the variants of a gene inherited from the mother and father. (2018-01-22)
Scientists find mechanisms to avoid telomere instability found in cancer and aging cells
Researchers from Instituto de Medicina Molecular (iMM) João Lobo Antunes have found that a functional component of telomeres called TERRA has to constantly be kept in check to prevent telomeric and chromosomal instability, one of the underlying anomalies associated with cancer. (2018-01-22)
The Down's syndrome 'super genome'
Only 20 percent of foetuses with trisomy 21 reach full term. (2018-01-19)
Fanconi anemia: Insight from a green plant
Fanconi anemia is a human genetic disorder with severe effects, including an increased risk of cancer and infertility. (2018-01-19)
How cancer metastasis happens: Researchers reveal a key mechanism
Cancer metastasis, the migration of cells from a primary tumor to form distant tumors in the body, can be triggered by a chronic leakage of DNA within tumor cells, according to a team led by Weill Cornell Medicine and Memorial Sloan Kettering Cancer Center researchers. (2018-01-18)
Counting chromosomes: Plant scientists solve a century-old mystery about reproduction
Geneticists have solved a century-old mystery by discovering a remarkable mechanism that enables plants to count their chromosomes. (2018-01-18)
Packing a genome, step-by-step
For the first time, scientists can see in minute-time resolution how cells package chromosomes into highly condensed structures prior to cell division. (2018-01-18)
Cell biology: Positioning the cleavage furrow
Researchers from Ludwig-Maximilians-Universitaet (LMU) in Munich have identified a signaling pathway that restricts cleavage furrow formation to the mid-plane of the cell. (2018-01-11)
Frogs reveal mechanism that determines viability of hybrids
Why are some hybrids viable and others not? It is known that this depends on the father species and the mother species. (2018-01-10)
Supercoiling pushes molecular handcuffs along chromatin fibers
As it squeezes down the chromatin fiber, the cohesin protein complex extrudes a growing loop of DNA -- a bit like the quick-lacing system of trail-running shoes. (2017-12-14)
What keeps stem cells in their undifferentiated state?
UNC-Chapel Hill scientists found that a special cluster of proteins helps unwind DNA during cell division and plays a key role in keeping stem cells in their immature state. (2017-12-13)
Immune diseases inflict identical twins differently
A new study by researchers at the Osaka University Graduate School of Medicine reports which epigenetic factors in certain chromosomes that make one twin more at risk for autoimmune thyroid diseases. (2017-12-12)
Important new aspects are revealed about the control of cell division
University of Seville researchers from the Andalusian Centre for Molecular Biology and Regenerative Medicine (Centro Andaluz de Biología Molecular y Medicina Regenerativa - Cabimer) have published a study on the fundamental role that the nucleus plays in the coordination of these processes (2017-12-12)
Trisomy 21: Research breaks new ground
Researchers from UNIGE and ETHZ have analysed the proteins of individuals with trisomy 21: the goal was to improve our understanding of how a supernumerary copy of chromosome 21 could affect human development. (2017-11-28)
New butterfly species discovered in Russia with an unusual set of 46 chromosomes
Finding a new species is a rare event in easy-to-see and well-studied organisms like butterflies, especially if they inhabit well-explored areas such as Europe. (2017-11-27)
New approach to studying chromosomes' centers may reveal link to Down syndrome and more
A new technique may force the centromere -- the mysterious stretch of DNA in the center of every chromosome -- to give up its secrets at last. (2017-11-20)
Genome sequencing reveals extensive inbreeding in Scandinavian wolves
Researchers from Uppsala University and others have for the first time determined the full genetic consequences of intense inbreeding in a threatened species. (2017-11-20)
Passenger pigeon genome shows effects of natural selection in a huge population
The passenger pigeon is famous for the enormity of its historical population and for its rapid extinction in the face of mass slaughter by humans. (2017-11-16)
Study of Amish suggests mutation linked to longer life span
A particular mutation identified among Old Order Amish in Indiana is associated with a longer life span, improved metabolism and a lower occurrence of diabetes, according to a new study. (2017-11-15)
Scientists figure out how cell division timer works
Human cells use a timer to divide: each cell gets at least 30 minutes to divide its genetic material between the nuclei of two daughter cells. (2017-11-09)
Old human cells rejuvenated in breakthrough discovery on ageing
A new way to rejuvenate old cells in the laboratory, making them not only look younger, but start to behave more like young cells, has been discovered by researchers at the Universities of Exeter and Brighton. (2017-11-07)
Key to better asparagus identified in evolution of sex chromosomes
Working with an international team of breeders and genome scientists, plant biologists at the University of Georgia have sequenced the genome of garden asparagus as a model for sex chromosome evolution. (2017-11-02)
How chromosomes 'cheat' for the chance to get into an egg
Chromosomes can 'cheat,' biasing the chance that they will make it into a sex cell. (2017-11-02)
Elderly chromosomes activate genes differently than in the young
Grey hair, wisdom, and wrinkles on our skin mark us as we age, but it's the more subtle changes beneath the surface that make us old. (2017-10-31)
Chromosome organization emerges from 1-D patterns
Researchers at Rice University and Baylor College of Medicine have developed a method to predict how a human chromosome folds based solely on the epigenetic marks that decorate chromatin inside cells. (2017-10-31)
New genes on 'deteriorating' Y chromosome
Decoding Y chromosomes is difficult even with latest sequencing technologies. (2017-10-25)
Chromosomes may be knotted
Little is known about the structures of our genetic material, chromosomes, which consist of long strings that -- according to our experience -- should be likely to become knotted. (2017-10-20)
Sleep duration may affect the integrity of sperm DNA
A new study found a link between sleep duration and a measure of chromosomal health in sperm. (2017-10-16)
Childhood poverty, poor support may drive up pregnant woman's biological age
Pregnant women who had low socioeconomic status during childhood and who have poor family social support appear to prematurely age on a cellular level, potentially raising the risk for complications, a new study has found. (2017-10-16)
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