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Stress lowers immunity

A recent study sheds new light on one link between stress and illness by describing a mechanism through which stress alters immune function.

Leptin aids Type-1 diabetics

Researchers found that leptin, a hormone produced by the body's fat cells, lowers blood glucose levels and maintains them in a normal range for extended periods.

Senescence in liver cells

Although post-reproductive life in humans is often associated with decline and a loss of powers, senescence is proving to be one of ironic potency.

Exploding chromosomes

Human cells somehow squeeze two meters of double-stranded DNA into the space of a typical chromosome, a package 10,000 times smaller than the volume of genetic material it contains.

Prolonging life expectancy

Combating illness can potentially add years to a life. At the centre of this struggle lies an immune system compromised by age. Scientist...

Cilia protein complex identified

An international team has identified a protein complex that regulates the formation of cilia, which are found on virtually all mature human cells and are essential to normal cell function.

Tracking evolution

A recent study suggests that differences in ribosomal structure between the three main branches of that tree are "molecular fossils" of the early evolution of protein synthesis.

Fish cancer gene linked to pigment

A study shows that a melanoma gene can be conserved in swordtail fish because of its beneficial role in sexual selection.

Leaky gut may allow HIV into brain

Scientist have found evidence that penetration of the blood brain barrier by HIV may be aided by a component found in the cell walls of...

Hydrogels help bone cell growth

Hyaluronic hydrogels have proven to encourage the growth of preosteoblast cells, cells that aid the growth and development of bone.

Gene abnormalities in bipolar disorder

The largest genetic analysis of its kind to date for bipolar disorder has implicated machinery involved in the balance of sodium and calcium in brain cells.

The power of metagenomic approaches

Today's powerful sequencing machines can rapidly read the genomes of entire communities of microbes, but the challenge is to extract meaningful information from the jumbled reams of data.

Urine chemistry analyser

The Clinitek Advantus Analyser is a highly productive, semi-automatic urine chemistry analyser that can perform up to 500 tests per hour.

Cancer signatures uncovered

A new systematic analysis of the relationship between the neoplastic and developmental transcriptome provides an outline of trends in cancer gene expression.

New cancer progression test

Investigators reported that they have developed a test to predict whether a patient will progress rapidly from Stage III melanoma to metastatic Stage IV cancer and death.

Eosiniphils shoot immunity bullet

Scientists discovered that bacteria can activate eosinophils to release mitochondrial DNA in a catapult-like fashion to create a net that captures and kills bacteria.

Reshuffling genomes forms new species

Researchers have shown how broken sections of chromosomes can recombine to change genomes and spawn new species.

Crawling the web: Perceptual learning

Scientist Live turns its eyes to the Web around it and highlights news and research across the Internet. Today we take a look at perceptual learning, HIV vaccines, and diabetes.

HIV vaccine trial too risky

Scientist Live spoke with Dr. Anthony Fauci, the man responsible for the PAVE 100 rejection at NIAID, about the trial, his decision,...

Height and tumours tied together

A mutation that causes a childhood tumour syndrome also impairs growth hormone secretion, revealing why patients with neurofibromatosis type 1 are frequently shorter than their peers.

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