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Following a low-sodium diet does not appear to have any appreciable impact on asthma control, according to new research. Contrary to past studies -- which have suggested a link between low-sodium diets and improved asthma control -- a new study found no evidence that cutting back on salt helps patients with their symptoms.

New research into the earliest events occurring immediately upon infection with HIV-I shows that the virus deals a stunning blow to the immune system earlier than was previously understood. This suggests the window of opportunity for successful intervention may be only a matter of days -- not weeks -- after transmission, as researchers had previously believed.

Eighteen female koalas treated with an anti-chlamydia vaccine are showing positive results, giving scientists hope they have an answer to the disease that is threatening the survival of koalas in the wild.

To ease pain and numbness associated with diabetes, scientists are studying a drug previously used for depression to treat peripheral neuropathy. Diabetics often suffer from this condition because of high blood sugar levels that damage nerve cells.

Scientists have teamed a mobile phone with a miniature heart monitor and a GPS device in research aimed at tackling the low participation rates of heart patients in cardiac rehabilitation.

The Tunguska catastrophe in 1908 evidently led to high levels of acid rain. This is the conclusion reached by Russian, Italian and German researchers based on the results of analyses of peat profiles taken from the disaster region. In peat samples corresponded to 1908 permafrost boundary they found significantly higher levels of the heavy nitrogen and carbon isotopes 15N and 13C.

A new signaling mechanism used to activate protein kinases that are critical for the body's inflammatory response has been discovered.