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Latest Chromosome Stories

2011-02-16 17:39:54

As a child grows, a short stature is not usually cause for concern, but it is often the only sign of a condition called Turner syndrome. Prevalent in girls, Turner syndrome is a genetic defect that short-circuits normal growth and leads to cardiac and renal problems. It is not commonly detected until age 10 or older when a youngster's unusually short height raises suspicions. This lag before diagnosis of the condition can delay the start of growth hormone therapy, which can help in achieving...

2011-02-03 17:53:27

The genes that make up the human genome were mapped by HUGO, the Human Genome Organization, and published in 2001. Now the project is expanding into the HUPO, the Human Proteome Organization. Within the framework of this organization, many hundreds of researchers around the world will work together to identify the proteins that the different genes give rise to in the human body. "The 'proteome', the set of all human proteins, is significantly more complicated than the genome. There are over...

2011-01-25 14:53:20

A study shows for the first time that the three most common chromosome changes seen in chronic lymphocytic leukemia disrupt a molecular network that includes several important genes and strongly influences the outcome of the disease. The research was led by investigators at the Ohio State University Comprehensive Cancer Center "“ Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC "“ James) and at University of Texas M.D. Anderson Cancer Center,...

2011-01-24 15:37:27

The sight of a researcher sitting at a microscope for hours, painstakingly searching for the right cells, may soon be a thing of the past, thanks to new software created by scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany. Presented today in Nature Methods, the novel computer programme can rapidly learn what the scientist is looking for and then takes over this laborious and time-consuming task, automatically performing complex microscopy experiments when...

2011-01-13 14:25:06

In the case of DNA, the package can be as important as its contents, new work with fruit flies reveals. In 2003, the year a complete draft of the human genome was released, the U.S. National Human Genome Research Institute launched the ENCODE project (ENCyclopedia of DNA Elements), to develop an encyclopedia of the epigenome, that is, of all of the many factors that can change the expression of the genes without changing the genes. Four years later, the National Institutes of Health funded...

2011-01-06 16:34:18

Chromosome crisis common in cancer causation Remarkable new research overthrows the conventional view that cancer always develops in a steady, stepwise progression. It shows that in some cancers, the genome can be shattered into hundreds of fragments in a single cellular catastrophe, wreaking mutation on a massive scale. The scars of this chromosomal crisis are seen in cases from across all the common cancer types, accounting for at least one in forty of all cancers. The phenomenon is...

2011-01-06 16:28:01

Most of the time cancer seems to creep up gradually over time; cells become premalignant, then increasingly abnormal before they become cancerous. But sometimes cancers seem to pop up as if out of nowhere. Now, researchers reporting in the January 7th issue of the journal Cell, a Cell Press publication, have new evidence to explain how that can happen. Based on the DNA sequences of multiple cancer samples of various types, they show that cancer can arise suddenly in the aftermath of one-off...

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2010-12-22 13:52:23

University of Adelaide researchers are a step closer to unraveling the mysteries of human sexual development, following genetic studies that show male mice can be created without a Y chromosome "“ through the activation of an ancient brain gene. Males usually have one Y chromosome and one X chromosome, while females have two X chromosomes. A single gene on the Y, called SRY, triggers testes development in the early embryo, and once these begin to form, the rest of the embryo also...

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2010-12-09 09:15:00

A team of reproductive scientists have successfully produced both male and female mice using two different fathers, according to a study published online Wednesday in the journal Biology of Reproduction. According to a December 8 press release from Biology of Reproduction publishers the Society for the Study of Reproduction (SSR), the research "could be a step toward preserving endangered species, improving livestock breeds, and advancing human assisted reproductive technology (ART). It also...

2010-12-08 16:29:46

A recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) has demonstrated a novel and accurate test for early diagnosis of Turner syndrome. Turner syndrome affects one in 1,500 to 2,000 female live births and early diagnosis allows for the timely management of short stature and co-morbid conditions including cardiac and renal problems. Turner syndrome (TS) is the most common genetic problem affecting girls with short stature....


Word of the Day
conjunto
  • A style of popular dance music originating along the border between Texas and Mexico, characterized by the use of accordion, drums, and 12-string bass guitar and traditionally based on polka, waltz, and bolero rhythms.
The word 'conjunto' comes through Spanish, from Latin coniūnctus, past participle of coniungere, to join together; see conjoin