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Prenatal biochemical screening only detects half of chromosomal abnormalities

Prenatal biochemical screening tests are widely used to look for chromosomal abnormalities in the fetus which can lead to serious handicap, or even death during gestation or in the first few days after birth. But these tests are only able to detect fewer than half of the total chromosomal abnormalities in the fetus, a scientist will tell the annual conference of the European Society of Human Genetics tomorrow (Monday 2 June) Dr. Francesca R. Grati, of the TOMA Laboratory, Busto Arsizio, Italy, says that these findings mean that women should be better informed on the limitations of such diagnostic tests.

1 Jun 2008

New insight into the genetics of Lou Gehrig's disease

An upcoming paper from Drs. Hidenori Ichijo and Hideki Nishitoh (The University of Tokyo) and colleagues lends new and valuable insight into the genetics of ALS.

1 Jun 2008

X chromosome exposed

An enzyme that binds differently to male and female sex chromosomes helps males to make up for their X chromosome shortage.

30 May 2008

Timer genes control brain size

Experiments using fruit flies have helped a team at the MRC National Institute for Medical Research to identify genes that control how large the developing brain becomes.

29 May 2008

Fireflies' glow helps researchers track cancer drug's effectiveness

The gene that allows fireflies to flash is helping researchers track the effectiveness of anti-cancer drugs over time.

29 May 2008

New cancer stem cell identified behind metastatic tumors

The molecular profile of cancer stem cells that initiate metastatic colon tumors is significantly different from those responsible for primary tumors, according to new research from a team at Weill Cornell Medical College.

28 May 2008

Cancer Research UK creates 'crack teams' to solve cancer's greatest mysteries

World leading scientists are to be targeted by Cancer Research UK and its development and commercialisation arm Cancer Research Technology (CRT), in an effort to tackle some of cancer's most pressing scientific challenges.

28 May 2008

Allergy - it's in the genes

In a world first scientists at theWestmead Millennium Institute have identified how a gene associated with allergic diseases such as asthma and eczema works, providing new hope for potential drug treatments.

28 May 2008

Avoiding spleen removal for Cooley's anemia sufferers

Researchers from Weill Cornell Medical College may have discovered the precise role of a gene in one of the world's most common blood disorders, beta-thalassemia, commonly known as Cooley's anemia. Along with sickle-cell anemia, Cooley's anemia is the most commonly inherited disease in the world, affecting many people of Mediterranean descent, and 20 out of every 100,000 African-Americans. The World Health Organization estimates that between 50,000-100,000 children are born with the disease each year.

27 May 2008

Molecular fingerprint of cocaine addiction revealed

The first large-scale analysis of proteins in the brains of monkeys addicted to cocaine reveals new information on how long-term cocaine use changes the amount and activity of various proteins affecting brain function.

27 May 2008

Gum disease an indicator of increased cancer risk

British scientists say gum disease, both in smokers and non-smokers, may be a warning sign of an increased risk of cancer.

27 May 2008

Bone repair using patient's stem cells comes closer

Hitherto it has been difficult to induce adult human stem cells to produce bone, e.g. in order to repair bone tissue. Researchers at the University of Twente have shown that if the enzyme PKA is previously activated in the stem cells in the lab, following implantation this results in substantial bone formation.

26 May 2008

Discovery on how an Helicobacter pylori toxin gets into cells

Helicobacter pylori is one tough bug. It can survive in the human stomach, a zone with a pH somewhere between that of lemon juice and battery acid. Now researchers have discovered how an H. pylori toxin gets into cells, a feat that helps the bacterium live in one of the most inhospitable environments in the body

26 May 2008

Researchers find multiple cancer genes cooperate to cause malignant cell transformation

Pinpointing new targets for cancer treatments is as difficult as finding a needle in a haystack, yet a University of Rochester team has discovered an entire novel class of genes they believe will lead to a greater understanding of cancer cell function and the next generation of effective and less harmful therapies for patients.

26 May 2008

Intracellular antibody mops up mutant protein in Huntington's disease model

Scientists have created a tool for mopping up the clumps of mutant protein that drive neurodegeneration in Huntington's disease. Emory University researchers engineered a virus to make an intracellular antibody or "intrabody" against huntingtin, the protein whose mutant forms poison the brain cells of people with Huntington's.

26 May 2008

Cancer vaccine could be in the pipeline

Cancer researchers in the UK say they are one step closer to producing a specific targeted vaccine for killing cancer cells.

25 May 2008

Scientists image a single HIV particle being born

A mapmaker and a mathematician may seem like an unlikely duo, but together they worked out a way to measure longitude - and kept millions of sailors from getting lost at sea. Now, another unlikely duo, a virologist and a biophysicist at Rockefeller University, is making history of its own.

25 May 2008

New cancer vaccine protein target found

Cancer Research UK scientists have identified an important new protein target which could be used to produce highly focused vaccine therapies for cancer - according to research published in the Journal of Clinical Investigation.

25 May 2008

Embryonic pathway delivers stem cell traits

Studies of how cancer cells spread have led to a surprising discovery about the creation of cells with adult stem cell characteristics, offering potentially major implications for regenerative medicine and for cancer treatment.

25 May 2008

How cells size up their growth opportunities

The intricate mechanisms that switch cell growth on and off are regulated by mammalian target of rapamycin (mTOR) protein complexes, which sense nutrients within the cell. When amino-acids are abundant, the protein complexes promote cellular growth, and when nutrients are scarce they signal that hard times are ahead to the cell. But just how nutrients regulate mTOR signaling to control size has remained a mystery. Now, scientists in the lab of Whitehead Member David Sabatini have found the first step in the process.

25 May 2008