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Improved method for genetically manipulating human embryonic stem cells

UC Irvine researchers have discovered a dramatically improved method for genetically manipulating human embryonic stem cells, making it easier for scientists to study and potentially treat thousands of disorders ranging from Huntington's disease to muscular dystrophy and diabetes.

10 Mar 2008

Clearer understanding on how allergy symptoms are triggered

A team of Penn State University researchers is the first to demonstrate that lipid molecules in cell membranes participate in mammals' reactions to allergens in a living cell.

10 Mar 2008

Device allows scientists to control gene activity across generations of cells

Just as cells inherit genes, they also inherit a set of instructions that tell genes when to become active, in which tissues and to what extent.

4 Mar 2008

2 oxygenation events in ancient oceans sparked spread of complex life

The rise of oxygen and the oxidation of deep oceans between 635 and 551 million years ago may have had an impact on the increase and spread of the earliest complex life, including animals, according to a study reported in the Proceedings of the National Academy of Sciences online Early Edition during the week of February 25 – 29.

26 Feb 2008

Optical tool detects biomarkers in breath

Exhale on a cold winter day and you will see the water vapor coming out of your mouth.

20 Feb 2008

URMC testing new device for Parkinson's

The University of Rochester Medical Center (URMC) is one of a handful of sites nationwide testing a new device for patients with Parkinson's disease and essential tremor, a neurological movement disorder.

14 Feb 2008

Brain stimulation to improve cognitive function

A Columbia University Medical Center research team has uncovered how stimulation of a particular brain region can help stave off the deficits in working memory, associated with an extended sleep deprivation.

5 Feb 2008

DNA sensors found to be an effective artificial nose

In designing artificial noses modeled after biological olfaction, the challenge has been to generate a similarly large sensor repertoire with the requisite combinatorial complexity to detect odors in the real world.

24 Jan 2008

Short pulses of low-energy laser light create better medical images

Detection and treatment of tumours, diseased blood vessels and other soft-tissue conditions could be significantly improved, thanks to an innovative imaging system being developed that uses both light and sound.

13 Dec 2007

Doctors trained on patient simulators exhibit superior skills

Senior internal medicine residents who are trained in critical resuscitation skills on patient simulators become more skilled than residents who undergo traditional training, according to new research.

10 Dec 2007

Transcranial magnetic stimulation effective treatment for major depression

For the first time in a large-scale study, transcranial magnetic stimulation has been shown to be an effective, non-drug treatment for major depression.

5 Dec 2007

Altered sex hormone levels, higher body temp affects sleep quality in postmenopausal women

In an examination of potential relationships between objective sleep measures, nocturnal sex hormone levels, and the nocturnal course of body temperature of older postmenopausal women, a study published in the December 1, 2007 issue of the journal SLEEP finds that altered levels of both sex hormones and gonadotropins may contribute to sleep disturbance in older postmenopausal women and confirm the results of previous studies indicating that higher body temperature is associated with poorer sleep quality.

2 Dec 2007

Transcranial magnetic stimulation effective in treating major depression

Researchers at the University of Pennsylvania School of Medicine and other study sites have found that transcranial magnetic stimulation (TMS) – a non-invasive technique that excites neurons in the brain via magnetic pulses passed through the scalp – is a safe and effective, non-drug treatment with minimal side effects for patients with major depression who have tried other treatment options without benefit.

27 Nov 2007