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Mostrando entradas con la etiqueta breast cancer. Mostrar todas las entradas
Mostrando entradas con la etiqueta breast cancer. Mostrar todas las entradas

miércoles, 12 de diciembre de 2012

US SUPREME COURT TO DECIDE WHETHER OR NOT HUMAN DNA CAN BE PATENTED

By Daniel Fisher
Lab technicians for Myriad Genetics of Salt La...
Myriad technicians at work. (Image credit: AFP/Getty Images via @daylife)

The U.S. Supreme Court agreed to hear, for a second time, a lawsuit challenging patents held by Myriad Genetics on human genes implicated in breast cancer.

The court, in an order today, said it would consider only the question of whether human genes can be patented, meaning it plans to dive straight into one of the most contentious — and elusive — questions in patent law, which is the difference between an invention and a natural phenomena. Opponents of the patents say they prevent researchers from even examining naturally occurring genetic material that companies have patented. Supporters say the law allows patents on any process that isolates a valuable substance, even if it’s naturally occurring, citing industrial processes to create useful products out of hydrocarbons and plant material.


This will be the second trip to the Supreme Court for the Myriad case, which the high court sent back to the Court of Appeals for the Federal Circuit in Washington in March for reconsideration after it issued a decision narrowing the scope of allowable patents. The D.C. Circuit upheld the patent again in August, in what might be seen as a direct challenge to the high court’s interpretation of patent law. In its order accepting the case again, the court said it would limit both sides to the simple, but confounding, question of whether human genes can be patented.

The case pits Salt Lake City-based Myriad against researchers and critics who said Myriad’s patented on the BRCA genes found in breast tumors hindered research into the deadly disease. Myriad lawyers have sent threatening letters to the University of Pennsylvania and others, urging researchers isolating those genes to desist or pay royalties. The ACLU joined with the Association for Molecular Pathology and other groups in urging the court to declare such purified snippets of DNA as unpatentable.

Some patent lawyers — and two of the three judges on the D.C. Circuit — believe the case presents nothing more than an old dispute over whether “laws of nature” can be patented. Given the amount of work involved in actually isolating genes from the much larger DNA molecule transforms them into something useful, the majority said, just like any other industrial process based on naturally occurring compounds. The refining industry has thousands of patents on processes that revolve around extracting naturally occurring hydrocarbon molecules, for example; it’s the difficulty of creating hydrocarbons any other way that makes crude oil so valuable.

Opponents of human genes say such patents hinder research. They seem to have support on the Supreme Court, which has taken a skeptical view of overbroad patents in recent decisions.

Source: Forbes
Link: 

lunes, 3 de septiembre de 2012

SCOTLAND´S TOXIC SLUDGE LAGOONS


Source: Rob Edwards


Sewage sludgeWater and sewage treatment has left a “potentially nasty” legacy of 26 toxic sludge lagoons scattered around Scotland, an investigation by the Sunday Herald has revealed.

Tens of thousands of cubic metres of sludge contaminated with aluminium and other pollutants are being stored at sites near Wigtown, Barrhead, Coatbridge, Falkirk, Cupar and Inverness, as well as across Argyll, Aberdeenshire, Sutherland, Orkney and elsewhere (see table below).

An investigation into the safety of the sludge lagoons has been launched by the government company, Scottish Water, while environmentalists are demanding that the sites be cleaned up.

According to the Scottish Environment Protection Agency (Sepa), 18 of the sites are left over from when drinking water was treated with an aluminium compound to remove impurities. The resultant sludges have been contaminated with aluminium, which has been linked to breast cancer, Alzheimer's disease and other health problems.

“There is a possible risk of such aluminium leaching,” Sepa said, though its “binding nature” meant that it was likely to stay in the sludge. Other lagoons contained old sludges from sewage treatment that were “relatively benign”.

"Many people will be shocked to learn of these potentially toxic lagoons dotted around Scotland,” said the Green MSP, Alison Johnstone. “They are an unfortunate legacy and it's vital Scottish Water and Sepa properly assess them and figure out what to do with them.”

She called for assurances that the sites posing the greatest risk would be safely cleaned up as soon as possible. “These lagoons are proof that we need sustainable infrastructure systems to minimise our impact on the environment and prevent future generations being left to clear up the mess we leave behind.”

She was backed by Dr Richard Dixon, the director of WWF Scotland. “Aluminium is certainly not something we want leaching out of these lagoons because it represents a danger to human health and to wildlife,” he said. “This is a large and potentially nasty legacy that Scotland needs to deal with.”

He added: “The public needs to be assured first of all that all these sites are currently in good condition, and that, at the least, there is a detailed plan in place to make sure they stay that way.  But we need to go further and look for permanent ways to remove this threat to the environment.”

It is uncertain exactly how much sludge is in the lagoons, but Sepa said that the “middle-sized” one at Cupar in Fife could contain up to 2,000 cubic metres. “Almost all of these sites are still within the curtilage of existing Scottish Water works and are being maintained and managed to some extent,” said Sepa manager, Colin Anderson.

“To develop greater understanding, Scottish Water is commissioning an extensive study to assess these sites and any potential risks they pose, including leaching. Sepa will continue to work closely with Scottish Water to ensure suitable remediation is undertaken where required.”

Scottish Water pointed out that the sludge lagoons dated back to when local authorities provided water and waste treatment. It had inherited them when it was formed in 2002.

“Our focus is always to ensure we manage the material in a sustainable way,” stressed a Scottish Water spokesman. For the sewage sludge, this meant recycling it to land to use its nutrients.

The aluminium-contaminated sludge was “predominantly inert” and was mostly disposed of as landfill. “It is not believed these sites present a particular risk,” he said.

“We are delivering a project to undertake environmental surveys to understand the extent and nature of them, and to confirm any environmental issues. This will help us determine the most appropriate means to manage them, in agreement with Sepa.”

26 toxic sludge sites

Bareagle, Wigtown, Dumfries and Galloway
Coatbridge, North Lanarkshire
Orbiston, North Lanarkshire
Barrhead, East Renfrewshire
Giffnock, East Renfrewshire
Kinneil Kerse, Falkirk
Dalderse, Falkirk
Cupar, Fife
Furnace, Argyll
Loch Eck, Argyll
Tiree, Argyll
Torra, Isle of Islay
Craignure, Isle of Mull
Turret, Perthshire
Assynt, 15 miles north of Inverness
Clunas, Nairn
Invercannie, Banchory
Glendye, Aberdeenshire
Golspie, Sutherland
Londornoch, Sutherland
Savalbeg, Sutherland
Old Calder Works, Caithness
Sanday, Orkney
Big Breck Quarry, Orkney
Westray, Orkney
Wideford, Orkney
source: Scottish Environment Protection Agency 

Source link:
http://www.robedwards.com/2012/08/revealed-scotlands-nasty-legacy-of-toxic-sludge-lagoons.html