Today's Headlines - 08 August 2023
Centre to look into ‘Havana Syndrome’
GS Paper - 3 (Health and Diseases)
The Central government has told the Karnataka High Court that it will look into the matter of the ‘Havana Syndrome’ in India, in response to a Bengaluru resident’s recent petition. The petitioner had approached the court requesting a writ of mandamus for an enquiry on Havana Syndrome in India and the prevention of high-frequency microwave transmission in India.
What is Havana Syndrome?
Havana Syndrome refers to a set of mental health symptoms that are said to be experienced by United States intelligence and embassy officials in various countries.
It is worth noting that in general, the word ‘syndrome’ simply means a set of symptoms. It does not mean a unique medical condition, but rather a set of symptoms that are usually experienced together whose origins may be difficult to confirm.
What is known as the Havana Syndrome typically involves symptoms such as hearing certain sounds without any outside noise, nausea, vertigo and headaches, memory loss and balance issues.
As the name suggests, it traces its roots to Cuba in late 2016. This was about a year after the US opened its embassy in the capital city of Havana after ties between the two countries were normalised in 2015.
Some US intelligence officials and members of the staff at the embassy began experiencing sudden bursts of pressure in their brains followed by persistent headaches, feelings of disorientation and insomnia.
Where else has Havana syndrome been reported?
Since the Cuban incident, American intelligence and foreign affairs officials posted in various countries have reported symptoms of the syndrome.
In early 2018, similar accusations began to be made by US diplomats in China. The first such report was in April 2018 at the Guangzhou consulate.
An American employee reported that he had been experiencing symptoms since late 2017. Another incident had previously been reported by a USAID employee at the US Embassy in Tashkent, Uzbekistan, in September 2017.
In 2019 and 2020, such incidents have been reported from within the US — particularly in Washington DC. One incident was even reported at The Ellipse, a lawn adjacent to the White House.
In India, the first such case was reported in the same year, when a US intelligence officer travelling to New Delhi with CIA director William Burns reported symptoms of Havana Syndrome.
What are the causes of Havana Syndrome?
No one is entirely sure. But initially during the Cuban experience, being in a country that had been hostile to the US for over five decades, the suspicion was on Cuban intelligence or a section within the Cuban establishment that did not want US-Cuba relations to normalise. It was then speculated to be a “sonic attack”.
However, further study by scientists in the US and medical examination of the victims began to suggest that they may have been subjected to high-powered microwaves that either damaged or interfered with the nervous system.
#upsc #news #headline #health #diseases #havana #syndrome #karnataka #highcourt #india #bengaluru #mandamus #resident #transmission #symptoms #embassy #unique #medical #cuba #roots #US #guangzhou #consulate #washington #newdelhi #sonicattack #cuban #microwaves #nervous #system
Centre to look into ‘Havana Syndrome’
GS Paper - 3 (Health and Diseases)
The Central government has told the Karnataka High Court that it will look into the matter of the ‘Havana Syndrome’ in India, in response to a Bengaluru resident’s recent petition. The petitioner had approached the court requesting a writ of mandamus for an enquiry on Havana Syndrome in India and the prevention of high-frequency microwave transmission in India.
What is Havana Syndrome?
Havana Syndrome refers to a set of mental health symptoms that are said to be experienced by United States intelligence and embassy officials in various countries.
It is worth noting that in general, the word ‘syndrome’ simply means a set of symptoms. It does not mean a unique medical condition, but rather a set of symptoms that are usually experienced together whose origins may be difficult to confirm.
What is known as the Havana Syndrome typically involves symptoms such as hearing certain sounds without any outside noise, nausea, vertigo and headaches, memory loss and balance issues.
As the name suggests, it traces its roots to Cuba in late 2016. This was about a year after the US opened its embassy in the capital city of Havana after ties between the two countries were normalised in 2015.
Some US intelligence officials and members of the staff at the embassy began experiencing sudden bursts of pressure in their brains followed by persistent headaches, feelings of disorientation and insomnia.
Where else has Havana syndrome been reported?
Since the Cuban incident, American intelligence and foreign affairs officials posted in various countries have reported symptoms of the syndrome.
In early 2018, similar accusations began to be made by US diplomats in China. The first such report was in April 2018 at the Guangzhou consulate.
An American employee reported that he had been experiencing symptoms since late 2017. Another incident had previously been reported by a USAID employee at the US Embassy in Tashkent, Uzbekistan, in September 2017.
In 2019 and 2020, such incidents have been reported from within the US — particularly in Washington DC. One incident was even reported at The Ellipse, a lawn adjacent to the White House.
In India, the first such case was reported in the same year, when a US intelligence officer travelling to New Delhi with CIA director William Burns reported symptoms of Havana Syndrome.
What are the causes of Havana Syndrome?
No one is entirely sure. But initially during the Cuban experience, being in a country that had been hostile to the US for over five decades, the suspicion was on Cuban intelligence or a section within the Cuban establishment that did not want US-Cuba relations to normalise. It was then speculated to be a “sonic attack”.
However, further study by scientists in the US and medical examination of the victims began to suggest that they may have been subjected to high-powered microwaves that either damaged or interfered with the nervous system.
#upsc #news #headline #health #diseases #havana #syndrome #karnataka #highcourt #india #bengaluru #mandamus #resident #transmission #symptoms #embassy #unique #medical #cuba #roots #US #guangzhou #consulate #washington #newdelhi #sonicattack #cuban #microwaves #nervous #system
Today's Headlines - 18 August 2023
IITG produces pluripotent stem cells
GS Paper - 3 (Biotechnology)
Researchers from the Indian Institute of Technology Guwahati (IITG) in collaboration with scientists from Christian Medical College, Vellore, have reported a method to convert regular human skin cells into pluripotent stem cells. The human body is made of many kinds of cells – nerve cells, heart cells, liver cells, pancreatic cells, and so on, with unique structures and functions.
More about the News
All these distinctive cells originate from stem cells to perform a specific function. Lack of any of this cell type in a human body will result in a disease or disorder.
Thus, stem cells can be programmed to develop into mature functional cells, which can be used to replace damaged cells.
Stem Cells have to be extracted from embryos or parts of the adult human body like the brain or bone marrow, which is challenging from both ethical and practical aspects.
Thus, scientists are exploring techniques to convert ordinary cells, like skin or blood cells, into pluripotent stem cells – stem cells that can be programmed to develop into any other form of an adult cell type. These cells are called Induced Pluripotent Stem Cells (iPSCs).
The most important advantage of iPSCs is their potential to produce patient-specific cells which can be transplanted to the site of injury or the site of tissue degeneration due to various disease conditions, and thereby, eliminate any chance of immune rejection.
The conversion of mature cells into iPSCs was first shown by Prof. Shinya Yamanaka, who won the Nobel Prize in 2012 for his discovery.
How it Prepared
This research involved introducing specific genes into mature cells to convert them into iPSCs.
The researchers have used a safe, integration-free method, and have introduced genes such as OCT3/4, SOX2, KLF4, L-MYC, LIN28 and a p53 shRNA into skin cells to transform them into iPSCs.
The iPSCs produced by the IITG and CMC researchers were versatile, maintained their genetic makeup well, and could potentially differentiate into a range of body cell types.
Additionally, tests confirmed that the DNA structure of the cells was not altered and matched that of the original cells. Importantly, these iPSCs were found to be free from bacterial contamination.
iPSCs are useful for the design of stem-cell therapies for a range of ailments. iPSCs can be programmed to become beta islet cells to treat diabetes, blood cells to treat leukaemia, or neurons to treat disorders like Parkinson's and Alzheimer’s diseases.
Given the importance and potential of stem cells, the Government of India actively supports stem cell research through the Department of Health Research-Indian Council of Medical Research (DHR-ICMR).
This commitment spans two decades and includes initiatives such as advanced research centres, thematic task forces, and iPSC generation.
The collaboration between IIT Guwahati and CMC Vellore aligns seamlessly with these efforts and India’s endeavour to be at the forefront of stem cell research.
#upsc #news #headline #IITG #pluripotent #stem #cells #biotechnology #technology #guwahati #biotechnology #christian #medical #college #vellore #human #pluripotent #nervecells #pancreaticcells #unique #functions #disease #adult #practical #IPSC #shinyayamanaka #nobelprize #parkinson #alzheimer #diabetes #forces #research #DHR #ICMR #department #taskforces #india
IITG produces pluripotent stem cells
GS Paper - 3 (Biotechnology)
Researchers from the Indian Institute of Technology Guwahati (IITG) in collaboration with scientists from Christian Medical College, Vellore, have reported a method to convert regular human skin cells into pluripotent stem cells. The human body is made of many kinds of cells – nerve cells, heart cells, liver cells, pancreatic cells, and so on, with unique structures and functions.
More about the News
All these distinctive cells originate from stem cells to perform a specific function. Lack of any of this cell type in a human body will result in a disease or disorder.
Thus, stem cells can be programmed to develop into mature functional cells, which can be used to replace damaged cells.
Stem Cells have to be extracted from embryos or parts of the adult human body like the brain or bone marrow, which is challenging from both ethical and practical aspects.
Thus, scientists are exploring techniques to convert ordinary cells, like skin or blood cells, into pluripotent stem cells – stem cells that can be programmed to develop into any other form of an adult cell type. These cells are called Induced Pluripotent Stem Cells (iPSCs).
The most important advantage of iPSCs is their potential to produce patient-specific cells which can be transplanted to the site of injury or the site of tissue degeneration due to various disease conditions, and thereby, eliminate any chance of immune rejection.
The conversion of mature cells into iPSCs was first shown by Prof. Shinya Yamanaka, who won the Nobel Prize in 2012 for his discovery.
How it Prepared
This research involved introducing specific genes into mature cells to convert them into iPSCs.
The researchers have used a safe, integration-free method, and have introduced genes such as OCT3/4, SOX2, KLF4, L-MYC, LIN28 and a p53 shRNA into skin cells to transform them into iPSCs.
The iPSCs produced by the IITG and CMC researchers were versatile, maintained their genetic makeup well, and could potentially differentiate into a range of body cell types.
Additionally, tests confirmed that the DNA structure of the cells was not altered and matched that of the original cells. Importantly, these iPSCs were found to be free from bacterial contamination.
iPSCs are useful for the design of stem-cell therapies for a range of ailments. iPSCs can be programmed to become beta islet cells to treat diabetes, blood cells to treat leukaemia, or neurons to treat disorders like Parkinson's and Alzheimer’s diseases.
Given the importance and potential of stem cells, the Government of India actively supports stem cell research through the Department of Health Research-Indian Council of Medical Research (DHR-ICMR).
This commitment spans two decades and includes initiatives such as advanced research centres, thematic task forces, and iPSC generation.
The collaboration between IIT Guwahati and CMC Vellore aligns seamlessly with these efforts and India’s endeavour to be at the forefront of stem cell research.
#upsc #news #headline #IITG #pluripotent #stem #cells #biotechnology #technology #guwahati #biotechnology #christian #medical #college #vellore #human #pluripotent #nervecells #pancreaticcells #unique #functions #disease #adult #practical #IPSC #shinyayamanaka #nobelprize #parkinson #alzheimer #diabetes #forces #research #DHR #ICMR #department #taskforces #india