Men respond more aggressively than women to stress and it's all down to a single gene
The pulse quickens, the heart pounds and adrenalin courses through the veins, but in stressful situations is our reaction controlled by our genes, and does it differ between the sexes? Australian scientists, writing in BioEssays, believ ...
Genetics
Mar 07, 2012 |
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How chemotherapy becomes more effective
Researchers from the University of Zurich have found a cellular brake that protects cancer cells from chemotherapy -- and they demonstrate which medication can be used to render it inoperative. Their study published in the ...
Cancer
Mar 05, 2012 |
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Understanding and treating the cognitive dysfunction of Down syndrome and Alzheimer's disease
Down syndrome (DS) is the most common genetic disorder in live born children arising as a consequence of a chromosomal abnormality. It occurs as a result of having three copies of chromosome 21, instead of the usual two. ...
Psychology & Psychiatry
Mar 01, 2012 |
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Scientists discover elusive platelet count and limb development gene
Researchers have identified an elusive gene responsible for Thrombocytopenia with Absent Radii (TAR), a rare inherited blood and skeletal disorder. As a result, this research is now being transformed into ...
Genetics
Feb 26, 2012 |
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Unraveling why children with Down syndrome have increased leukemia risk
Children with Down syndrome (DS) have an increased risk of developing leukemia, in particular acute megakaryoblastic leukemia (AMKL) and acute lymphoblastic leukemia (ALL). Through their studies in a mouse model of DS, a ...
Genetics
Feb 22, 2012 |
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Anticipation of stressful situations accelerates cellular aging
The ability to anticipate future events allows us to plan and exert control over our lives, but it may also contribute to stress-related increased risk for the diseases of aging, according to a study by UCSF researchers.
Psychology & Psychiatry
Feb 21, 2012 |
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Noninvasive method accurately and efficiently detects risk of Down syndrome
Using a noninvasive test on maternal blood that deploys a novel biochemical assay and a new algorithm for analysis, scientists can detect, with a high degree of accuracy, the risk that a fetus has the chromosomal abnormalities ...
Obstetrics & gynaecology
Feb 21, 2012 |
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Does depression contribute to the aging process?
Stress has numerous detrimental effects on the human body. Many of these effects are acutely felt by the sufferer, but many more go 'unseen', one of which is shortening of telomere length.
Psychology & Psychiatry
Feb 21, 2012 |
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To understand chromosome reshuffling, look to the genome's 3D structure
That our chromosomes can break and reshuffle pieces of themselves is nothing new; scientists have recognized this for decades, especially in cancer cells. The rules for where chromosomes are likely to break and how the broken ...
Medical research
Feb 16, 2012 |
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Cellular aging increases risk of heart attack and early death
Every cell in the body has chromosomes with so-called telomeres, which are shortened over time and also through lifestyle choices such as smoking and obesity. Researchers have long speculated that the shortening ...
Cardiology
Feb 16, 2012 |
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New prenatal genetic test is much more powerful at detecting fetal abnormalities
A nationwide, federally funded study has found that testing a developing fetus' DNA through chromosomal microarray (CMA) provides more information about potential disorders than does the standard method of prenatal testing, ...
Genetics
Feb 09, 2012 |
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Presdisposition to common heart disease 'passed on from father to son'
A common heart disease which kills thousands each year may be passed genetically from father to son, according to a study led by the University of Leicester.
Genetics
Feb 09, 2012 |
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Drugs targeting chromosomal instability may fight a particular breast cancer subtype
Another layer in breast cancer genetics has been peeled back. A team of researchers at Jefferson's Kimmel Cancer Center (KCC) led by Richard G. Pestell, M.D., PhD., FACP, Director of the KCC and Chair of the Department of ...
Cancer
Feb 06, 2012 |
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DNA test that identifies Down syndrome in pregnancy can also detect trisomy 18 and trisomy 13
A newly available DNA-based prenatal blood test that can identify a pregnancy with Down syndrome can also identify two additional chromosome abnormalities: trisomy 18 (Edwards syndrome) and trisomy 13 (Patau syndrome). The ...
Obstetrics & gynaecology
Feb 02, 2012 |
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Identical twins reveal mechanisms behind aging
In a recent study led by Uppsala University, the researchers compared the DNA of identical (monozygotic) twins of different age. They could show that structural modifications of the DNA, where large or small DNA segments ...
Genetics
Feb 02, 2012 |
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