| Glossary |
Chemical
Anything made of matter can be called a chemical, although the word is generally used to describe pure substances rather than mixtures.
Articles using this Glossary Item
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| 29 April 2013 - by |
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A study on identical twins with distinct autistic traits suggests that epigenetic factors may be important in understanding how the neurological disorder develops... [Read More] |
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Single gene mutation may be behind type 1 diabetes for minority of patients |
| 11 March 2013 - by |
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Genetic analysis of a family predisposed to type 1 diabetes (T1D) has uncovered the first kind of T1D to be caused by a single gene mutation... [Read More] |
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| 25 February 2013 - by |
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Untested synthetic chemicals found in many household and industrial products could be associated with adverse health outcomes, including low fertility, says a report by the United Nations Environment Programme and the World Health Organisation... [Read More] |
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| 10 December 2012 - by |
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Between 1989 and 2005, the sperm count of French men dropped by a third, according to a study... [Read More] |
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| 19 November 2012 - by |
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A preliminary study from the National Institutes of Health (NIH), USA, suggests that environmental pollutants including industrial chemicals and pesticides may be impairing human fertility, despite being banned more than thirty years ago.... [Read More] |
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Mouse studies suggest fresh approach to fertility preservation |
| 01 October 2012 - by |
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Two proteins that kick-start the destruction of damaged mouse eggs have been discovered by scientists. The findings may go on to have applications in fertility preservation for female cancer patients who receive aggressive treatment... [Read More] |
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| 03 September 2012 - by |
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Most of us, at one point in our lives, have wondered, 'where did I come from?'. The answer we receive differs from one perspective to another. Biologists would most likely recount the complex and intriguing journey of embryology... [Read More] |
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| 18 June 2012 - by |
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The top models featured in the latest Naked Genetics podcast are not the kind that grace the runway – they're the ones that grace our laboratories, providing valuable clues about conditions like Alzheimer's, viral infections and plant diseases... [Read More] |
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| 28 May 2012 - by |
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A chemical produced by stem cells promotes recovery in mice with the autoimmune neurological disease, multiple sclerosis. Hepatocyte growth factor, which is produced by human mesenchymal stem cells, appeared to both repair existing damage and prevent future neurological harm in a mouse model of the disease... [Read More] |
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Chemicals in environment can damage fertility - in male sheep |
| 21 May 2012 - by |
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Exposure to low levels of environmental toxins may reduce male sperm counts, research in sheep suggests... [Read More] |
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| 16 April 2012 - by |
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Epigenetics is a complex subject, so explaining it in just two minutes is a big ask. But that's what the short video clip, 'Health explained: epigenetics', on the BBC website attempts to do. Aimed at a general audience, the video succeeds in giving us a very basic introduction, but doesn't manage to capture what is new and exciting about this field of research... [Read More] |
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| 01 August 2011 - by |
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Last month news broke of an experimental womb transplantation surgery planned for early next year. With it came the possibility of women with an absent or non-functioning uterus carrying a child to term (see Roberts, 2011).... [Read More] |
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| 20 June 2011 - by |
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Scientists have discovered a way to bypass the type of mutation that causes about a third of human genetic diseases. Experiments in yeast have shown how chemical modifications can allow a cell's machinery to ignore mistakes in DNA known as nonsense mutations... [Read More] |
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| 07 March 2011 - by |
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High levels of toxic polychlorinated biphenyls (PCBs), a man-made organic chemical associated with adverse health reactions in humans, in the blood may contribute to embryos failing to implant during IVF, say researchers.... [Read More] |
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| 14 February 2011 - by |
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US researchers have found a correlation between levels of the brain chemical neuropeptide Y (NPY) and an individual's emotional wellbeing. Mutations in the NPY gene, leading to decreased levels of the molecule, correlated with a decreased ability to deal with stressful situations and an increased susceptibility to depression.... [Read More] |
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| 20 September 2010 - by |
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Chemical modifications to genes over a person's lifetime may influence their weight without changing their inherited DNA sequence, a new study has found. This is the first time long-standing chemical alterations to genes have been linked to body weight and obesity... [Read More] |
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| 10 May 2010 - by |
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Nearly 10 years ago, Professor Niels Skakkebæk from the Copenhagen University Hospital, published details of a new syndrome to account for the apparent increase in problems related to the male reproductive system that had been documented in many countries... [Read More] |
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| 06 April 2010 - by |
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A US judge has invalidated a genetic testing company's patents on two breast cancer genes... [Read More] |
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| 15 February 2010 - by |
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Researchers have expressed concern about athlete's use of genetic tools in the 'next generation' of illegal doping, and have stressed the importance of developing reliable new detection tests to stop them. Writing in the journal Science, Theodore Friedmann and colleagues at the University of California warn that 'the time is right to look at how advances in genetics are affecting sport'. The authors highlight the dangers of using imperfect and 'highly risky' genetic techniques, which may have... [Read More] |
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| 31 January 2010 - by |
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Exposure to chemicals found in household objects such as furniture, carpets and electronic equipment increases the time taken to become pregnant, according to a study published online in the journal Environmental Health Perspectives. Professor Kim Harley and colleagues at the University of California, Berkeley (UCB) School of Public Health found that women with a higher blood concentration of polybrominated diphenyl ethers (PBDEs), which have been used as flame retardants since the 1970s, too... [Read More] |
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