The human brain and the brain of other mammals contain numerous populations of specialized cells with unique functions, molecular structures and characteristics. These cells originate from a thin layer of neuroepithelial ...
Repeated outbreaks of bat-derived coronaviruses among humans and other mammals have heightened the need for a broad range of therapeutics—monoclonal antibodies and antivirals—treatments that can come immediately "off-the-shelf" ...
Scientists at the Stanford University School of Medicine have determined the precise anatomical coordinates of a brain "hot spot," measuring only about one-fifth of an inch across, that is preferentially activated when people ...
Apr 16, 2013
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(Medical Xpress)—A study dating the age of more than 1 million single-letter variations in the human DNA code reveals that most of these mutations are of recent origin, evolutionarily speaking. These kinds of mutations ...
Nov 28, 2012
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(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.
May 11, 2012
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Fifty years after participating in studies of pentosuria, an inherited disorder once mistaken for diabetes, 15 families again welcomed medical geneticists into their lives. Their willingness to have their DNA analyzed with ...
Oct 31, 2011
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A consortium led by scientists at the University of Oxford and Harvard Medical School has constructed the world's most detailed genetic map.
Jul 20, 2011
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More than just a tool for predicting health, modern genetics is upending long-held assumptions about who we are. A new study by Harvard researchers casts new light on the intermingling and migration of European, Middle Eastern ...
May 24, 2011
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Northwestern Medicine scientists have identified new genes implicated in the development of uterine fibroids, according to a study published in Nature Communications.
Mar 14, 2024
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Researchers from Würzburg University Hospital (UKW), Homburg University Hospital (UKS), and the Max Planck Institute for Evolutionary Anthropology in Leipzig (MPI-EVA), all in Germany, have analyzed the DNA from a worldwide ...
Mar 11, 2024
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The term world population commonly refers to the total number of living humans on Earth at a given time. As of 29 July 2009, the Earth's population is estimated by the United States Census Bureau to be 6.774 billion. The world population has been growing continuously since the end of the Black Death around 1400. There were also short term falls at other times due to plague, for example in the mid 17th century (see graph). The fastest rates of world population growth (above 1.8%) were seen briefly during the 1950s then for a longer period during the 1960s and 1970s (see graph). According to population projections, world population will continue to grow until around 2050. The 2008 rate of growth has almost halved since its peak of 2.2% per year, which was reached in 1963. World births have levelled off at about 134-million-per-year, since their peak at 163-million in the late 1990s, and are expected to remain constant. However, deaths are only around 57 million per year, and are expected to increase to 90 million by the year 2050. Since births outnumber deaths, the world's population is expected to reach about 9 billion by the year 2040.
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