Diseases, Conditions, Syndromes

China changes method of counting virus infected... again

China said Thursday it has again changed the method of counting patients with the novel coronavirus and will now include only those diagnosed by sophisticated laboratory testing.

Medical research

Stopping Parkinson's disease before it starts

An Osaka University-led research team has recently published findings that provide a ray of hope for the millions of Parkinson's disease (PD) sufferers worldwide. Although more common in those aged over sixty, PD can strike ...

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Nucleic acid

A nucleic acid is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living things, as they are found in all cells and viruses. Nucleic acids were first discovered by Friedrich Miescher in 1871.

Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally-occurring DNA or RNA by changes to the backbone of the molecule.

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