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GS-III :
  • 18 May, 2020

  • 3 Min Read

MicroRNA- Why old age make it more difficult to fight COVID-19

MicroRNA- Why does old age makes it more difficult to fight COVID-19

  • A group of tiny RNA — that is supposed to attack the SARS-CoV-2 when it infects human bodies — diminishes with age and in people with chronic health problems, which may explain why older individuals and those with pre-existing health conditions are more vulnerable to Covid-19.
  • MicroRNAs play a big role in controlling gene expression, and are a frontline defence when viruses invade.
  • According to a study published in Aging and Disease, the microRNA numbers dwindle with age and under chronic medical conditions, which reduces a person’s ability to respond to viruses.
  • The team from Augusta University had looked at the RNA sequence of two coronaviruses — SARS, which surfaced in 2002, and SARS-CoV-2.
  • They also looked at the sequence of microRNAs that appeared to be attacking these viruses, and then used computer simulation to figure out the results.
  • They found 873 microRNAs that target the SARS-CoV-2 genome. These microRNAs were associated with more than 72 biological processes — from the production of molecules to immune response.

Source: IE


Oceanic Anoxic Event 1a and MASS EXTINCTION

Oceanic Anoxic Event 1a from the Paris Basin (Environment) Paper-3 PMP OAE 1a refers to a period during the Cretaceous Period (145 million years ago and ended 66 million years ago) when Earth's oceans became depleted of oxygen, causing a significant disruption in marine life.  Cause: The event is believed to have been

Viksit Panchayat Karmayogi (Good governance)

Viksit Panchayat Karmayogi (Good governance) Governance GS PAPER-2 PMP Dr. Jitendra Singh launched the ‘Viksit Panchayat Karmayogi’ initiative on Good Governance Day, celebrated to mark the 100th birth anniversary of former Prime Minister Atal Bihari Vajpayee. The initiative, which is part of the broader ‘Prashasan Gaon

Major programmes to control Air Pollution

Major programmes to control Air Pollution National Clean Air Programme? It was launched by the Ministry of Environment, Forests and Climate Change (MoEFCC) in January 2019. It is the first-ever effort in the country to frame a national framework for air quality management with a time-bound reduction target. The

Air pollution and Air quality Measures in India

Air pollution and Air quality Measures in India (Environment) GS Paper-3 P-M-P Air pollution may be defined as the presence of any solid, liquid or gaseous substance including noise and radioactive radiation in the atmosphere in such concentration that may be directly and/or indirectly injurious to humans or other l

Geopolitical Significance of Ports

Geopolitical Significance of Ports (IR)  Act as Geopolitical Assets: Ports enhance the projection of strategic reach, which helps strengthen the country’s control over important sea and energy supply routes.  E.g. Indian Navy’s staging base at Agalega Islands will enable marine patrols

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