Many astonishingly creative people have lived lives cut tragically short by illness. Johannes Vermeer, Wolfgang Amadeus Mozart, Jane Austen, Franz Schubert and Emily Brontë are some famous examples.
Molecular & Computational biology
Mar 26, 2023
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291
Ludwig van Beethoven's genome has been sequenced for the first time by an international team of scientists using five genetically matching locks of the well-known composer's hair.
Molecular & Computational biology
Mar 22, 2023
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199
On Twitter, a popular microblogging and social-networking service, statements about vaccines may have unexpected effects—positive messages may backfire, according to a team of Penn State University researchers led by Marcel ...
Computer Sciences
Apr 4, 2013
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(Phys.org) —A diverse team of international researchers has found that women with stronger immune systems don't necessarily have prettier faces than women whose immune system is not so strong. In their paper published in ...
An inexpensive device used by millions of people with diabetes could be adapted into a home DNA detector that enables individuals to perform home tests for viruses and bacteria in human body fluids, in food and in other substances, ...
Analytical Chemistry
Feb 29, 2012
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Innovative mathematical models designed to calculate which sectors of the population need vaccinating during an infectious disease outbreak could save money and lives.
Mathematics
Apr 13, 2010
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0
A physicist at the University of California, Riverside, and her former graduate student have successfully modeled the formation of SARS-CoV-2, the virus that spreads COVID-19, for the first time.
Molecular & Computational biology
Oct 3, 2022
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130
Understanding the evolution of life-threatening viruses like influenza, Ebola and dengue fever, could help us to minimize their impact. New research points the way to a fossil record of viruses that have insinuated themselves ...
Biotechnology
Nov 18, 2010
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(PhysOrg.com) -- Biologists from The University of Texas at Arlington have uncovered virus fragments from the same family as the modern Hepatitis B virus locked inside the genomes of songbirds such as the modern-day zebra ...
Cell & Microbiology
Sep 28, 2010
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0
The discovery of a mummified Korean child with relatively preserved organs enabled an Israeli-South Korean scientific team to conduct a genetic analysis on a liver biopsy which revealed a unique hepatitis B virus (HBV) genotype ...
Archaeology
May 29, 2012
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1
Hepatitis B is a disease caused by HBV hepatitis B virus which infects the liver of hominoidae, including humans, and causes an inflammation called hepatitis. Originally known as "serum hepatitis", the disease has caused epidemics in parts of Asia and Africa, and it is endemic in China. About a third of the world's population, more than 2 billion people, have been infected with the hepatitis B virus. This includes 350 million chronic carriers of the virus. Transmission of hepatitis B virus results from exposure to infectious blood or body fluids containing blood.
The acute illness causes liver inflammation, vomiting, jaundice and—rarely—death. Chronic hepatitis B may eventually cause liver cirrhosis and liver cancer—a fatal disease with very poor response to current chemotherapy. The infection is preventable by vaccination.
Hepatitis B virus is an hepadnavirus—hepa from hepatotrophic and dna because it is a DNA virus—and it has a circular genome composed of partially double-stranded DNA. The viruses replicate through an RNA intermediate form by reverse transcription, and in this respect they are similar to retroviruses. Although replication takes place in the liver, the virus spreads to the blood where virus-specific proteins and their corresponding antibodies are found in infected people. Blood tests for these proteins and antibodies are used to diagnose the infection.
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