City people have better disease resistance genes

The University of London team of researchers has conducted research on resistance to diseases such as tuberculosis, leprosy and recognizes people living in cities through generations with better resistance to disease.

Scientists analyzed DNA samples from 17 groups of people living in different parts of the world, including: Europe, Asia and Africa. The results of this analysis are cross-checked with historical and archaeological data about life in the first days of the city or these metropolitan areas.

Research results have shown that gene variants are resistant to diseases such as tuberculosis, leprosy and cholera that are almost found in all people living in thousands of years old. Middle East, India to Europe. However, these genes are less common in people who reside in areas with later urbanization, such as Africa.

Living in the city will help people create better resistance to disease. (Photo: Internet).

The BBC quoted Dr. Ian Barnes, one of the scientists in the research group: ' This is a good example of evolution. The development of the city and the life there are like a pressure that our humanity must select and develop. At the same time, it also helps explain the difference in human disease resistance worldwide . '

Professor Brian Spratt, director of the University of London's Department of Molecular Biology, said: ' Genes that are able to enhance human disease resistance will appear more in areas that have occurred. deadly diseases (tuberculosis, cholera, leprosy .) than those where this type of epidemic has never appeared .

This means city dwellers who often face these dangerous diseases will be more resistant to disease than those who live nomadic lives.

Cities and towns are the places where crowded population is concentrated with many inadequate environment. The epidemics also often develop and spread rapidly, forcing people to strengthen their resistance. Centuries passed, disease resistant genes will be formed, passed on to the next and become more and more powerful.