A Mayo Clinic study found that sildenafil does not worsen symptoms of inadequate blood supply to the heart muscle during exercise in men with coronary artery disease. The study, which involved 105 patients, suggests that sildenafil can be safely prescribed for these patients without increasing their risk of heart attacks.
Researchers at Cornell University are growing methanogens and other microbes in a laboratory using conditions similar to acidic wetlands. The goal is to understand how these microorganisms function and potentially apply this knowledge to bioengineering, such as bioremediation of contaminated sites or controlled methane production.
A study found that African-American women were the least likely to donate blood, with only 41% reporting willingness, while African-American men were the least likely to become organ donors upon death. Religious beliefs played a significant role in organ donation disparities among African-American and white groups.
Researchers mapped the primary auditory cortex of a pallid bat, revealing insights into the structure and function of its hearing system. The study found that neurons in the low-frequency noise-preferring region are systematically organized with respect to their sensitivity to interaural intensity differences.
A new study using powerful DNA-amplification tests found that up to 3% of participants had untreated chlamydia and over 5% had untreated gonorrhea, suggesting a large reservoir of asymptomatic infections. The high prevalence rates in the general public and lack of symptoms emphasize the importance of screening programs and extended acc...
The study, conducted in Olmsted County, Minnesota, found that only a small percentage of people utilize recommended approaches to weight loss. The efforts being undertaken by CardioVision 2020 aim to reduce cardiovascular disease burden through diet and exercise changes. Meanwhile, another study on breast cancer patients highlights the...
A recent study by Mayo Clinic researchers has confirmed that long-term use of venlafaxine provides women with breast cancer significant relief from hot flashes, with a 60% reduction in frequency over eight weeks. The antidepressant is considered a safe and effective non-hormonal alternative to estrogen for treating hot flashes.
A study by scientists at Rush Alzheimer's Disease Center found that more frequent participation in cognitively stimulating activities is associated with a reduced risk of Alzheimer's disease. The research showed a 33% reduction in risk for each one-point increase in cognitive activity.
Research with monkeys shows that low energy availability due to strenuous exercise training causes amenorrhea. Increasing food intake reverses the effect, suggesting a key role for energy balance in exercise-induced amenorrhea.
The GRIP aims to combat 'brain drain' by providing partial salaries and research support to well-trained young investigators returning home. Eligible scientists can compete for funds through a peer-reviewed process.
A study found that blind individuals using Braille reading strategies activate areas of the brain normally reserved for vision, suggesting a novel way of utilizing occipital cortex. This activation is similar to what is observed in sighted individuals when reading print or receiving tactile stimulation.
A study found that 35% of staff left the field within four years due to colleague stress. However, burnout was not a major factor; instead, support from professional colleagues significantly impacted employee retention. The researchers conclude that improving team relationships can reduce job stress and enhance retention.