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Scientists uncover how human egg captures sperm to begin fertilisation process

Researchers have uncovered exactly how a human egg captures an incoming sperm to begin the fertilisation process, in a new study published this week in the journal Science.

19 Aug 2011

MSF warns global shortage of drug-resistant TB treatment likely

As countries increase the use of the GeneXpert test, a two-hour molecular TB test released in 2010, "enabl[ing] them to diagnose more patients with drug-resistant tuberculosis (DR-TB), a worldwide shortage of the drugs to treat these patients is likely, Medecins Sans Frontieres (MSF) warns," according to PlusNews.

18 Aug 2011

Optical coherence tomography can distinguish between high and low risk pancreatic cysts

A team of researchers from four Boston-area institutions led by Nicusor Iftimia from Physical Sciences, Inc. has demonstrated for the first time that optical coherence tomography (OCT), a high resolution optical imaging technique that works by bouncing near-infrared laser light off biological tissue, can reliably distinguish between pancreatic cysts that are low-risk and high-risk for becoming malignant.

18 Aug 2011

Flexible-fiber CO2 laser-assisted ablation safe for endoscopic assisted transsphenoidal craniotomies

A new study has shown the Flexible-Fiber CO2 laser to safely cut and coagulate during endoscopic assisted transsphenoidal craniotomies (TSC) without the line of sight problems encountered with conventional CO2 lasers.

17 Aug 2011

Flatworms provide new insight into organ regeneration, evolution of mammalian kidneys

Our bodies are perfectly capable of renewing billions of cells every day but fail miserably when it comes to replacing damaged organs such as kidneys. Using the flatworm Schmidtea mediterranea-famous for its capacity to regrow complete animals from minuscule flecks of tissue-as an eloquent example, researchers at the Stowers Institute for Medical Research demonstrated how our distant evolutionary cousins regenerate their excretory systems from scratch.

10 Aug 2011

Chromogenic in situ hybridization can identify ALK rearrangement in lung cancer patients

A relatively simple and inexpensive method may be used to determine whether a lung cancer patient is a candidate for crizotinib therapy, according to research published in the August issue of the Journal of Thoracic Oncology, the official monthly journal of the International Association for the Study of Lung Cancer.

3 Aug 2011

New software tools for fast, accurate reconstruction of neural networks

The human brain is the most complex of all organs, containing billions of neurons with their corresponding projections, all woven together in a highly complex, three-dimensional web. To date, mapping this vast network posed a practically insurmountable challenge to scientists.

30 Jul 2011

Expert offers air quality control tips

A mold count of more than 50,000 has triggered an alert for dangerous air quality throughout the Midwest . The Midwest experienced a record-breaking winter for snow, and is again setting new records for heat and rain.

29 Jul 2011

Invadopodia could help survival of cancer cells

Delicate, threadlike protrusions used by cancer cells when they invade other tissues in the body could also help them escape control mechanisms supposed to eliminate them, a research group led by led by Bradley Davidson in the University of Arizona's department of molecular and cellular biology reports in Nature Cell Biology.

28 Jul 2011

Carcinogenesis is just another form of speciation, proposes new theory

Cancer patients may view their tumors as parasites taking over their bodies, but this is more than a metaphor for Peter Duesberg, a molecular and cell biology professor at the University of California, Berkeley.

27 Jul 2011

Erionite in North Dakota roads may increase risk of mesothelioma

As school buses drive down the gravel roads in Dunn County, North Dakota, they stir up more than dirt. The clouds of dust left in their wake contain such high levels of the mineral erionite that those who breathe in the air every day are at an increased risk of developing mesothelioma, a type of cancer of the membranes around the lungs, new research shows.

26 Jul 2011

Researchers identify elusive gene responsible for Grey Platelet Syndrome

Researchers have identified an elusive gene responsible for Grey Platelet Syndrome, an extremely rare blood disorder in which only about 50 known cases have been reported. As a result, it is hoped that future cases will be easier to diagnose with a DNA test.

26 Jul 2011

Large clinical trial to test new device for detecting Barrett's oesophagus

CANCER RESEARCH UK has launched a large multi-centre trial to test a new device for detecting Barrett's oesophagus - a condition that puts sufferers at increased risk of developing cancer of the oesophagus, one of the most deadly cancers.

25 Jul 2011

Microglia prune connections between neurons

Gardeners know that some trees require regular pruning: some of their branches have to be cut so that others can grow stronger. The same is true of the developing brain: cells called microglia prune the connections between neurons, shaping how the brain is wired, scientists at the European Molecular Biology Laboratory (EMBL) in Monterotondo, Italy, discovered.

22 Jul 2011

Male infertility cause found in defective gene

Researchers have found a new cause of infertility that could allow millions of infertile couples around the world to have a child. The team found a common gene mutation that causes sperm to be far less able to swim through the mucus of the cervix and reach the egg.

20 Jul 2011

If Berwick exits, is quality care 'in jeopardy?'

As Medicare is put under the microscope in the debt-ceiling talks, the clock is running out for Centers for Medicare and Medicaid Services Administrator Donald Berwick to be confirmed by Congress.

13 Jul 2011

Researchers use AFM to characterize ovarian cell structure for cancer diagnosis

Using ovarian surface epithelial cells from mice, researchers from Virginia Tech have released findings from a study that they believe will help in cancer risk assessment, cancer diagnosis, and treatment efficiency in a technical journal: Nanomedicine.

7 Jul 2011

Ovarian cells are stiffer and more viscous when benign

6 Jul 2011

Researchers develop way to uncover evolution of human cancer cells

A team of researchers led by scientists at the University of California, San Francisco has developed a way to uncover the evolution of human cancer cells, determining the order in which mutations emerge in them as they wend their way from a normal, healthy state into invasive, malignant masses.

30 Jun 2011

Small 'antifreeze' molecules more effective in protecting proteins than larger ones

Scientists have made an important step forward in their understanding of cryoprotectants - compounds that act as natural 'antifreeze' to protect drugs, food and tissues stored at sub-zero temperatures.

24 Jun 2011