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Protecting The Heart With Glucocorticoid Drugs
Glucocorticoids are steroid hormones that have numerous functions; for example, they regulate the response to stress and suppress inflammation. Synthetic glucocorticoids are used clinically in many situations, most famously to treat asthma, allergies, and autoimmunity. They have also been shown in animals and humans to help protect the heart from the damaging effects of heart attack, and this has been attributed to their anti-inflammatory effects. However, Motoaki Sano and colleagues, at Keio University School of Medicine, Japan, have now determined another mechanism by which glucocorticoids protect rodent hearts from the damaging effects of heart attack. Specifically, glucocorticoids, acting via the glucocorticoid receptor (GR), induced mouse and rat heart muscle cells to produce PGD2, and this was responsible for the ability of glucocorticoids to reduce damage to mouse hearts in both an ex vivo and an in vivo model of heart attack. The authors therefore suggest that GR-selective glucocorticoids might be more beneficial to humans following heart attack than glucocorticoids that activate both GR and the MR protein, activation of which occurs in response to stress and might have unwanted consequences.
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Artificial Liver For Drug Tests
If you have hay fever, headaches or a cold, it"s only a short way to the nearest chemist. The drugs, on the other hand, can take eight to ten years to develop. Until now animal experiments have been an essential step, yet they continue to raise ethical issues. "Our artificial organ systems are aimed at offering an alternative to animal experiments," says Professor Heike Mertsching of the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart. "Particularly as humans and animals have different metabolisms. 30 per cent of all side effects come to light in clinical trials." The test system, which Professor Mertsching has developed jointly with Dr. Johanna Schanz, should in future give pharmaceutical companies greater security and shorten the path to new drugs. Both researchers received the "Human-centered Technology" prize for their work.
News of the day
Acute Stroke Centres Promise To 'revolutionise' Stroke Care Services
The growth of acute stroke care centres and systems of care could revolutionise clinicians" ability to treat patients with stroke, according to an analysis of services published ahead of print in the Journal of NeuroInterventional Surgery.
Medical Devices

New Labor Ads Focus On Health Benefits Tax

"Much of the TV advertising on health care so far has focused on the controversial public, or government-run insurance program that Democrats say would compete with private insurers and Republicans say would drive them out of business," but the Laborers" International Union of North America "will begin airing ads in two states Tuesday that deal with an equally explosive issue: Taxing health benefits," USA Today reports. The union will "run the ads at least through Thursday in North Dakota and Montana," home states of "the two most important senators on the issue, Senate Finance Chairman Max Baucus, D-Mont., and Senate Budget Committee Chairman Kent Conrad, D-N.D." The ads reveal the "fine line labor is walking" on health care: "The ads first praise Congress for taking up the health care debate but then criticize an idea that could be included in one draft of the legislation to tax health care premiums" (Fritze, 6/29). Politico posted the new ads, which will air through next Thursday (Martin, 6/29). This information was reprinted from kaiserhealthnews.org with kind permission from the Henry J. Kaiser Family Foundation. You can view the entire Kaiser Daily Health Policy Report, search the archives and sign up for email delivery at kaiserhealthnews.org. © Henry J. Kaiser Family Foundation. All rights reserved.


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