السبت، 5 يناير 2013

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Long-term consequences for those suffering traumatic brain injury

Posted: 04 Jan 2013 12:51 PM PST

Researchers studying the long-term consequences of traumatic brain injury (TBI) using rat models, have found that, overtime, TBI results in progressive brain deterioration characterized by elevated inflammation and suppressed cell regeneration. However, therapeutic intervention, even in the chronic stage of TBI, may still help prevent cell death.

Gene therapy reprograms scar tissue in damaged hearts into healthy heart muscle

Posted: 04 Jan 2013 12:51 PM PST

A cocktail of three specific genes can reprogram cells in the scars caused by heart attacks into functioning muscle cells, and the addition of a gene that stimulates the growth of blood vessels enhances that effect, said researchers.

Shifting the balance between good fat and bad fat

Posted: 04 Jan 2013 11:37 AM PST

Researchers have a new theory about what causes the body to store more fat and burn less energy in obesity -- a protein called p62. According to a new study, when p62 is missing in fat, the body's metabolic balance shifts -- inhibiting "good" brown fat, while favoring "bad" white fat. These findings indicate that p62 might make a promising target for new therapies aimed at obesity.

Pioneering research on Type 2 diabetes

Posted: 04 Jan 2013 11:37 AM PST

While legions of medical researchers have been looking to understand the genetic basis of disease and how mutations may affect human health, one group of biomedical researchers is studying the metabolism of cells and their surrounding tissue, to ferret out ways in which certain diseases begin. This approach, which includes computer modeling, can be applied to Type 2 diabetes, autoimmune diseases, and neurodegenerative diseases, among others.

Physicians call for change in cancer tissue handling

Posted: 04 Jan 2013 11:36 AM PST

Physicians say that traditional specimen handling methods threaten to slow the benefits of using genetic sequencing to diagnose and treat cancer. Routine freezing of tissue would retain its genetic coding while preserving it for future analysis.

Outsourced radiologists perform better reading for fewer hospitals

Posted: 04 Jan 2013 11:36 AM PST

Experience working for a particular hospital matters when it comes to the performance of radiologists who work for outsourcing teleradiology companies, according to a team of researchers, whose finding could have important implications, given the growing use of telemedicine.

Rainfall, brain infection linked in sub-Saharan Africa

Posted: 04 Jan 2013 11:36 AM PST

The amount of rainfall affects the number of infant infections leading to hydrocephalus in Uganda, according to a team of researchers who are the first to demonstrate that these brain infections are linked to climate.

When will genomic research translate into clinical care -- and at what cost? New study applies quantitative modeling to genomics

Posted: 04 Jan 2013 11:36 AM PST

Researchers find that the same tools that can successfully predict hurricanes and election outcomes can be applied to pharmacogenomics and clinical outcomes.

Under the weather, literally: More rainfall and bigger storms may lead to more stomach upsets

Posted: 04 Jan 2013 11:35 AM PST

We can blame all sorts of things on the weather. But a stomach bug? It seems unlikely. Yet, scientists say greater quantities of rainfall and bigger storms will lead to more stomach upsets in parts of Europe.

Consumers judge their risk of catching an illness by the cost of the cure

Posted: 04 Jan 2013 11:34 AM PST

Consumers make irrational inferences about their health risks based on the price of their medicine.

How prostate cancer therapies compare by cost and effectiveness

Posted: 04 Jan 2013 11:34 AM PST

The most comprehensive retrospective study ever conducted comparing how the major types of prostate cancer treatments stack up to each other in terms of saving lives and cost effectiveness have been reported.

Pesticides and Parkinson's: Further proof of a link uncovered

Posted: 04 Jan 2013 07:14 AM PST

Researchers have found a link between Parkinson's disease and the pesticide Benomyl, whose toxicological effects still linger in the environment, 10 years after it was banned by the EPA. More important, the research suggests the way this pesticide does its damage may occur in other people with Parkinson's, even for those who were not exposed to this pesticide.

Induction of adult cortical neurogenesis by an antidepressant

Posted: 04 Jan 2013 07:14 AM PST

The production of new neurons in the adult normal cortex in response to the antidepressant, fluoxetine, is reported in a new study.

Structural studies of a toxin from Bacillus cereus that causes diarrhea

Posted: 04 Jan 2013 05:31 AM PST

Food poisoning caused by Bacillus cereus can lead to diarrhea which is probably caused by a 3-component toxin which is produced by this bacteria strain and which perforates and kills cells. New research has revealed one of the protein structures of this toxin and has led to a better understanding of the mechanisms behind multi-component, pore-forming toxins. These findings can enhance food safety.

Breast milk contains more than 700 species of bacteria, Spanish researchers find

Posted: 04 Jan 2013 05:31 AM PST

Researchers have traced the bacterial microbiota map in breast milk and identified the species of microbes taken from breast milk by infants. The study has revealed a larger microbial diversity than originally thought: more than 700 species. The breast milk received from the mother is one of the factors determining how the bacterial flora will develop in the newborn baby. The study reveals that the milk of overweight mothers or those who put on more weight than recommended during pregnancy contains a lesser diversity of species.
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