Current guidelines for treating severe constipation include surgical removal of part of the colon, a procedure called subtotal colectomy. Using national databases of hospital activity in the United States, investigators have discovered that colectomies for constipation nearly tripled over a span of 13 years, from 104 procedures in 1998 to 311 in 2011.
A new study reveals that the salt marsh plant Spartina alterniflora, which grows on more than 9,000 km of the Atlantic coastline of South America, is not native to the area and was in fact introduced 200 years ago.
A new study conducted by researchers at the University of North Carolina at Chapel Hill has determined that consumers are increasingly making packaged food purchases at warehouse clubs, mass merchandisers, and convenience stores. These outlets offer a selection of foods that have poor nutrient profiles, with higher calories and more sugar, sodium, and saturated fat compared to grocery stores. This represents a potential US public health concern. Their results are published in the American Journal of Preventive Medicine.
Research from Indiana University has found that sexual activity triggers physiological changes in the body that increase a woman's chances of getting pregnant, even outside the window of ovulation.
How do we know that the melanosomes found in the fossils are actually melanosomes and not something else, like leftover impressions from the microbes (some of which also make melanin) that coated the feather during its decay and preservation?
A new analysis of the fossil record by paleontologists at the University of Connecticut and the Smithsonian Institute demonstrates that the number of animal species in the world's oceans has skyrocketed during the past 200 million years, despite mass extinctions like the one at the end of the Cretaceous Period (66 million years ago).
An endangered monkey species in Tanzania is living in geographical pockets that are becoming isolated from one another. The situation, researchers say, is mostly driven by the monkeys' proximity to villages and the deliberate burning of forests to make way for crops and pastures.
Patients undergoing rehabilitation for physical injuries and their physicians can better understand who is most at risk of abusing opioids by reviewing their family history, lifestyle and environment for critical cues about susceptibility to addiction. It's important to recognize that opioids are sometimes the most effective pain treatment available for patients, regardless of their risk profile. Physicians can offer an agreement to patients susceptible to addiction that includes stringent, voluntarily monitoring designed to confirm opioids are used responsibly.
Studying the 'gut-brain axis,' UNC researchers find evidence of an association between the gut microbiota and the eating disorder.
Shaped like saucers and covered with camouflaging layers of debris, the heads of two 'door head' ant species are found to differentiate them as new taxa. Retrieved from sifted leaf-litter in rainforests in Kenya and the Ivory Coast, the two new species use their peculiar features to block the entrances of their nests against intruders such as other predatory ants and invertebrates. The findings, made by an international research team, are available in the open access journal ZooKeys.