Friday November 16, 2018

Water-Borne Illness Increases Sharply in Iraq

Iraq's individual provinces have been fighting for water, amid a general shortage.

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Water crisis
A girl drinks water in the street outside her tent at a camp for internally displaced people in western Baghdad, Iraq. VOA
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Iraqi health officials say that a health crisis stemming from water pollution and a shortage of clean drinking water has worsened in recent days, as hospitals in the southern port city of Basra treat more than 1,000 cases of intestinal infections on a daily basis. The problem was exacerbated several months ago when Turkey cut back on water distributed to the Tigris and Euphrates Rivers.

A crowd of young men took to the streets on in the southern port city of Basra Tuesday, demanding the central government and Prime Minister Haidar al-Abadi increase the quantity of clean drinking water allotted to their province, otherwise it’ll lead to a health crisis. Abadi vowed to increase spending on infrastructure for the province during a visit to Basra in July.

A young man, whose friend was killed during a rally several weeks ago, broke down and sobbed over the protesters’ inability to force Iraqi leaders to improve the condition of public services in Basra, especially the region’s worn-out water infrastructure and insufficient quantities of drinking water allotted by the central government.

Some health officials in Basra warn that a cholera outbreak is possible due to water pollution and water-borne parasites that have made thousands of people sick in recent days. The director general of the Basra Health department, Riad Abdul Amir, told Al Hurra TV the situation continues to worsen.

He says more than 17,500 cases of intestinal ailments, resulting from contaminated drinking water, have been treated by Basra hospitals during the past two weeks, alone.

 

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The water network in Basra hasn’t been updated in at least 30 years. Pixabay

 

Abdul Amir says the problem stems from insufficient fresh water supplies coming into the city via canals and water pipes from the north.

“Salty water [which has infiltrated the water network],” he asserts, “is known to reduce the efficacy of chlorine used to treat and kill bacteria in drinking water,” he said.

Safaa Kazem, a docotor who has been treating dozens of cases of intestinal problems and diarrhea in Basra’s Sadr Teaching Hospital each day, says water from the city’s supply is not safe to drink.

She says the degree of water sterilization is minimal and that Basra’s water is very salty and has an extremely high level of microbes in it, along with a high degree of chemical pollution.

Basra Governor Assad al Edani told Al Hurra TV that his province has been suffering from numerous infrastructure problems for a long time.

He says the water network in Basra hasn’t been updated in at least 30 years and the old pipes often break, mixing drinking water with sewage.

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The degree of water sterilization is minimal. VOA

Edani says “not enough fresh water is arriving via the region’s only canal from Thi Qar province to the north.” He thinks a “strong current of fresh water will flush out salty water seeping into the water network from the sea.”

Also Read: Iraq Lifts Ban On International Flights to Kurdish Airports

Edani adds that the population of Basra has “more than doubled since the water network was last updated in the early 1990s.”

Iraq’s individual provinces have been fighting for water, amid a general shortage, since Turkey in early June severely curtailed the number of cubic meters of water it funnels into both the Tigris and Euphrates rivers. (VOA)

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NASA to Send Organ-on-Chips To Test Human Tissue Health in Space

Called a micro-physiological system, a tissue chip needs three main properties

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NASA, tissue
NASA to send tissue chips to space to test human health, genetic changes. Flcikr

NASA is planning to send small devices containing human cells in a 3D matrix — known as tissue chips or organs-on-chips — to the International Space Station (ISS) to test how they respond to stress, drugs and genetic changes.

Made of flexible plastic, tissue chips have ports and channels to provide nutrients and oxygen to the cells inside them.

The “Tissue Chips in Space” initiative seeks to better understand the role of microgravity on human health and disease and to translate that understanding to improved human health on Earth, NASA said.

“Spaceflight causes many significant changes in the human body,” said Liz Warren, Associate Program Scientist at the Center for the Advancement of Science in Space (CASIS) in the US.

Kepler, NASA, tissue
This illustration made available by NASA shows the Kepler Space Telescope. As of October 2018, the planet-hunting spacecraft has been in space for nearly a decade. VOA

“We expect tissue chips in space to behave much like an astronaut’s body, experiencing the same kind of rapid change,” Warren said.

The US space agency is planning the investigations in collaboration with CASIS and the National Center for Advancing Translational Sciences (NCATS) at the National Institutes for Health (NIH).

Many of the changes in the human body caused by microgravity resemble the onset and progression of diseases associated with ageing on Earth, such as bone and muscle loss. But the space-related changes occur much faster.

That means scientists may be able to use tissue chips in space to model changes that might take months or years to happen on Earth.

Parkinson's Disease, Kepler, NASA, tissue
A researcher takes a tissue sample from a human brain at the Multiple Sclerosis and Parkinson’s UK Tissue Bank, VOA

This first phase of Tissue Chips in Space includes five investigations. An investigation of immune system ageing is planned for launch on the SpaceX CRS-16 flight, scheduled for this year.

The other four, scheduled to launch on SpaceX CRS-17 or subsequent flights, include lung host defense, the blood-brain barrier, musculoskeletal disease and kidney function.

In addition, four more projects are scheduled for launch in summer 2020, including two on engineered heart tissue to understand cardiovascular health, one on muscle wasting and another on gut inflammation.

Kepler, NASA, tissue
“Detecting life in an agnostic fashion means not using characteristics particular to Earth life,” said Heather Graham at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Pixabay

Also called a micro-physiological system, a tissue chip needs three main properties, according to Lucie Low, scientific programme manager at National Center for Advancing Translational Sciences in the US.

Also Read: NASA’s Ralph Will Explore Jupiter’s Trojan Asteroids in 2021

“It has to be 3D, because humans are 3D,” she explained.

“It must have multiple, different types of cells, because an organ is made up of all kinds of tissue types. And it must have microfluidic channels, because every single tissue in your body has vasculature to bring in blood and nutrients and to take away detritus,” she added. (IANS)