Genetics

As population exploded, more rare genes entered human genome

(Medical Xpress) -- As the Earth's human population has skyrocketed since the rise of agriculture some 10,000 years ago -- to 7 billion people from a few million -- so, too, has the number of rare genetic variants.

Medical research

Gut bacteria mine dietary fiber to release beneficial nutrients

A new study from Washington University School of Medicine in St. Louis demonstrates that certain human gut microbes can mine dietary fiber to extract nutrients that otherwise would remain inaccessible to the human body. The ...

Diseases, Conditions, Syndromes

A new picture of dengue's growing threat

Research published today in Nature Microbiology paints a startling new picture of where dengue, the world's fastest-growing mosquito-borne virus, will spread to put more than 6 billion people at risk toward the end of the ...

Ophthalmology

World's blind population to soar: study

The world's blind will increase threefold from about 36 million today to 115 million in 2050 as populations expand and individuals grow ever older, researchers said Thursday.

Alzheimer's disease & dementia

Alzheimer's stemmed but not stopped, say experts

Soaring rates of population growth and ageing have long been seen as portending a global explosion of Alzheimer's, the debilitating disease that robs older people of their memory and independence.

Diseases, Conditions, Syndromes

Predicting disease outbreaks using environmental changes

A model that predicts outbreaks of zoonotic diseases—those originating in livestock or wildlife such as Ebola and Zika—based on changes in climate, population growth and land use has been developed by a UCL-led team of ...

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