Add BrightSurf on Google Email

Science News for May 24, 2005


Road salt affects mitigation wetlands

Researchers monitoring two PennDOT-installed data loggers measure high salt levels in runoff wetland, reaching half the salinity of seawater. The effects on species and soil quality are still unknown but may include decreased midge populations and increased algae growth.

Combating fatigue associated with liver disease

A randomized, double-blind placebo-controlled crossover trial found that ondansetron did not have a fatigue-reduction benefit greater than the considerable placebo effect. The study suggests that other drugs targeting the central nervous system may prove effective in combating fatigue associated with primary biliary cirrhosis.

SourceWiley·JournalHepatology·DateMay 24, 2005

Tobacco use persists after liver transplant for alcoholic liver disease

A recent study found a significant percentage of patients who received a liver transplant due to alcoholic liver disease also used tobacco post-transplant. The majority of smokers resumed their habit quickly and showed increased consumption over time, highlighting the need for more stringent monitoring and intervention.

SourceWiley·JournalLiver Transplantation·DateMay 24, 2005

Tiny bundles seek and destroy breast cancer cells

Researchers at Penn State have developed a new ceramide-based therapy that targets and destroys breast cancer cells while sparing healthy tissue. The treatment uses liposomes to deliver ceramide to the tumor, where it disrupts mitochondria and causes cell death.

SourcePenn State·JournalClinical Cancer Research·DateMay 24, 2005

Decreasing death anxiety

A study found that support groups improved depression symptoms and lessened death anxiety in patients with serious medical conditions, leading to better spiritual well-being. Patients were divided into three groups and received either standard care or participated in monthly support group meetings discussing challenging issues.

SourceIndiana University·JournalJournal of Palliative Medicine·DateMay 24, 2005

Laughter-induced asthma: It's no joke

A study of 235 patients with asthma found that laughter-induced asthma (LIA) is a common condition, affecting 56% of patients. Patients with LIA reported longer periods of well-controlled asthma during which they could laugh without experiencing symptoms, suggesting that LIA may indicate poorly controlled asthma.

In less dense neighborhoods

After the terrorist attacks, Ohio homeowners shifted their priorities to prioritize housing density, parks, and safety over other factors. A third survey conducted in spring 2004 found that despite increased fear of terrorism, home preferences returned closer to pre-9/11 levels.

A continent split by climate change: New study projects drought in southern Africa, rain in Sahel

A new study links drought in southern Africa to the warming of the Indian Ocean, contradicting earlier research that connected it to the Sahelian region. The analysis suggests a late 20th-century cooling of the North Atlantic Ocean was key to Sahelian drought, with recent warming leading to increased rainfall in the area.