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Home > News > Tags > chromosomes
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Stories about: chromosomes |
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The protein Cdt1, which is required for a process known as DNA replication, was recently discovered to play a very important role in mitosis, a critical part of the cellular division cycle. The finding sheds light on why cancers are based on genomic instabilities and unusual numbers of chromosomes.
DNA replication ... |
15 May 2012
04:41 GMT |
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Numerous cancer types are known to have an influence on human chromosomes, deleting certain portions in order to be able to infect the body. Now, researchers have shown that some of these deleted sections contain clusters of tumor-suppressing genes.
Experts say that this has been suspected for quite some time, but ... |
8 May 2012
03:50 GMT |
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According to the conclusions of a new scientific study, it would appear that stress is capable of affecting even the fabric your cells are made up of, leading to an acceleration of the aging process.
The usual, more visible effects of stress have been under investigation for a long time. These include everything fr... |
22 February 2012
15:31 GMT |
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Genetics may soon provide us with a means of finding out how long each individual on this planet will live, as soon as they are born. In a new study, experts found that the length of cellular components called telomeres can be used to predict human lifespan.
Telomeres are structures located at the end of chromosome... |
21 February 2012
03:27 GMT |
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Dogs may not come from the Middle East after all, two new studies indicate. The latest works in the field indicate that Fido was domesticated south of the Yangtze River, in China, about 16,000 years ago.
These results directly contradict evidence produced by other researchers, who proved that the Middle East has th... |
30 November 2011
08:43 GMT |
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In a groundbreaking study that could make it easier for experts to establish correlations between individual genes and their function, scientists at the University of Cambridge managed to construct the first mammalian cell that features a single chromosome set. The work – funded by EMBO and the Wellcome Trust &... |
13 September 2011
08:50 GMT |
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Cell division, the process through which a cell produces an exact copy of itself, can still baffle experts decades after the first studies began. In a recent investigation, a team of scientists discovered that one of the characteristic steps of mitosis is significantly different in some cells than in others. Californ... |
9 September 2011
16:01 GMT |
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In a new scientific investigation conducted on unsuspecting lab mice, researchers demonstrated for the first time ever that drug abuse can set the stage for the development of stress-related diseases in the human brain, such as for example depression.Until now, the opposite was demonstrated several times over. Resear... |
25 August 2011
08:59 GMT |
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A group of researchers studying human embryos during a phase of the development process called cleavage stage embryo determined that the three-day-old structure was capable of undergoing a process called genetic normalization. When conceived from a fertilized egg, an embryo can be produced with an incorrect number of... |
5 July 2011
09:43 GMT |
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When a live cell divides to form two exact replicas of its former self, the process is mainly controlled by centromeres, ensembles located around the middle section of chromosomes. Experts have now shown with greater quality the cascade of processes that allows for near-perfect cell division.One of the most burning q... |
15 June 2011
10:53 GMT |
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Scientists announce the discovery of a section of genetic material that is apparently involved in underlying depression. This particular DNA segment can be found on chromosome 3, the team says.The international collaboration of researchers that made this discovery features scientists from the King's College Lond... |
16 May 2011
02:55 GMT |
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Experts have been wondering for a very long time about how bacteria can produce species-specific wavelengths from their cells, without the presence of any discernible, specialized apparatus. A new study suggests that their chromosomes may play a role in underlying this ability. According to the conclusions of a new s... |
27 April 2011
03:51 GMT |
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One of the ways in which stress affects health is by reducing the length of telomeres on chromosomes. This makes cells age faster, and lead to a host of side-effects, said investigators at the University of California in San Francisco (USCF) in a recent presentation. Their newest study was showcased yesterday, April ... |
5 April 2011
14:01 GMT |
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Scientists from the United States announce that they managed to discover one of the main mechanisms through which the human immunodeficiency virus (HIV) acts on the human immune system, weakening it, and making it incapable of fighting future infections.The team found out that the viral agent was causing a specific s... |
27 January 2011
03:54 GMT |
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British and American researchers found a new clue that explains the way that cancers appear sometimes, without any warning.Most cancers evolve by following certain steps – cells become premalignant, then abnormally large before turning into cancerous cells, and if early detected, treatments can prove effective,... |
7 January 2011
04:20 GMT |
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An international team of researchers identified the genetic switch that sets up a baby's gender, and that is also linked to so-called 'intersex' families.Harry Ostrer, MD, director of the Human Genetics Program at NYU Langone Medical Center, led the team that found this gene, which is actually very imp... |
3 December 2010
06:02 GMT |
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In a new series of studies, researchers showed that it's possible to reverse the effects of premature aging by using a technique that reactivates a particular enzyme in charge of protecting special regions on each of our chromosomes. The molecule is called telomerase, and it's in charge of refurbishing telo... |
29 November 2010
04:04 GMT |
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Experts from the Fred Hutchinson Cancer Research Center in Seattle recently managed to gain more insight into how cellular division works, after they analyzed several key components that make the process possible and largely error-free.There are numerous control mechanisms and checkpoints that cells need to undergo b... |
25 November 2010
05:33 GMT |
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In a new investigation, researchers demonstrate a potential that tissues obtained from a patient's own stem cells have of turning cancerous under certain conditions. The work is meant as an alarm signal for researchers working with stem cells, who are advised to pay special attention to this possibility. The inv... |
22 November 2010
05:50 GMT |
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A team of investigators has recently determined that both human and zebra fish tumors share a trait known as aneuploidy, which basically means that their cancerous cells have to many chromosomes.Scientists discovered more than a century ago that certain tumor cells contain more copies of certain chromosomes than usua... |
7 October 2010
06:31 GMT |
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A new scientific investigation has recently determined that a gene located on chromosome six plays can be used as an indicator for a person's risk of developing late-onset Alzheimer's disease.This is the most common form of the condition, and it affects millions around the world. Alzheimer's is a form ... |
24 September 2010
05:02 GMT |
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Investigators at the UCLA have recently determined that induced pluripotent stem cells (iPSC) apparently retain an inactive X chromosome even after they are reverted to a stem state from their adult form. This was recently made obvious as adult human skin cells were reprogrammed to become female iPSC. The research te... |
9 September 2010
06:46 GMT |
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A team of investigators led by Italian scientists recently managed to reach an impressive milestone in genetic sciences, when they created the first complete genome of the apple species Golden Delicious.The achievement comes from the same team that managed to release the complete genome sequence of grapevine som... |
30 August 2010
01:57 GMT |
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According to a new scientific study, it would appear that some portion of the human junk DNA has the ability to promote the development of some forms of heart disease. The so-called “junk” DNA is in fact the 98 percent of our genetic material that is not directly responsible for coding proteins. When it w... |
22 February 2010
03:09 GMT |
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According to established knowledge, the Y chromosome in all the males of all species on Earth is a stagnant part of their genetic material. In other words, scientists thought that its only role was to decay over time, causing the genes inside to do the same thing. But a recent comparison of the Y chromosomes of human... |
15 January 2010
05:03 GMT |
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As more and more work was conducted on the human cell and its components, researchers noticed some time ago that chromosomes tended to appear in various parts of the cells during specific stages of cell division. This naturally led researchers to believe that the structures were moving about, but no one was able to d... |
13 January 2010
05:42 GMT |
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Many dog breeds have a high susceptibility to developing compulsive disorders in their lifetimes. The condition is not only limited to certain species, as individual members of other dog types can develop it as well. Now, a scientific group has managed to identify the gene that is believed to be responsible for this ... |
7 January 2010
10:02 GMT |
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Working in a line of research that is among the most commendable of all, researchers Elizabeth Blackburn, Carol Greider and Jack Szostak, from the United States, managed to further humankind's knowledge of aging, cancer and stem cells. In their studies of the human chromosomes, the vessels that carry our genetic... |
5 October 2009
07:03 GMT |
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Gene therapy is one of the most promising forms of treatment out there today, and experts hope that it may one day be used against a large variety of diseases, from cancer to AIDS. But there are still numerous problems associated with it that need to be dealt with first. One such issue is understanding exactly the ro... |
22 September 2009
06:23 GMT |
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An international group of researchers, investigating the connections between schizophrenia and DNA, identified the first clear tie, on chromosome 6. This is the same location that holds key genes for the immune function, which means that the disease must be influencing the expression of defense agents in the immune s... |
9 July 2009
16:01 GMT |
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Using a lubricant may improve sex ... and that's all. Fertility is wiped out. A new research published in the journal "Fertility and Sterility" shows that 80% of the lubricants seem to be sperm killers. Only one out of 5 vaginal lubricants did not significantly lower the motility of the sperms or the integrity o... |
18 March 2008
14:06 GMT |
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Here is the answer to why men act dumber than women: mutations in genes located on the X sex chromosome that provoke mental retardation. This is the result of a study made by Australian researchers, collaborating with colleagues from Katholieke Universiteit Leuven in Belgium and the Wellcome Trust Sanger Institute i... |
1 February 2008
06:49 GMT |
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