الأحد، 2 ديسمبر 2012

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


X-ray analysis deciphers master regulator important for skin cancer

Posted: 01 Dec 2012 05:59 AM PST

Scientists have uncovered the molecular structure of a master regulator central to the most deadly form of skin cancer, melanoma. The results throw new light on the workings of the so-called Microphthalmia-associated Transcription Factor MITF, that is not only connected to skin cancer, but also to a variety of hereditary diseases.

Long-term research reveals how climate change is playing out in real ecosystems

Posted: 01 Dec 2012 05:59 AM PST

Around the world, the effects of global climate change are increasingly evident and difficult to ignore. However, evaluations of the local effects of climate change are often confounded by natural and human induced factors that overshadow the effects of changes in climate on ecosystems. Now, scientists report a number of surprising results that may shed more light on the complex nature of climate change.

Extended sleep reduces pain sensitivity

Posted: 01 Dec 2012 05:59 AM PST

A new study suggests that extending nightly sleep in mildly sleepy, healthy adults increases daytime alertness and reduces pain sensitivity.

Lung cancer patients with pockets of resistance prolong disease control by 'weeding the garden'

Posted: 01 Dec 2012 05:59 AM PST

This study of 65 patients showed that continuing either crizotinib or erlotinib after the treatment of resistant pockets with focused radiation ("weeding the garden") was associated with more than half a year of additional cancer control.

Steroid injection linked with significant bone loss in postmenopausal women treated for back pain

Posted: 01 Dec 2012 05:59 AM PST

Postmenopausal women suffered significant bone density loss in their hip after they were treated with an epidural steroid injection for back pain relief, according to a new study. Bone density loss after six months was six times greater when compared to the typical bone density loss seen in a year in a postmenopausal woman who doesn't receive steroid injection, researchers say.

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