Skip to main content

Gene Editing

Blogx

Gene editing can sound like the stuff of sci-fi nightmares. Given the ability to selectively snip into the human genome, will we yield to the temptation to try to generate perfect little versions of ourselves? If we can dip into the genetic code, selectively editing for the traits we do or do not value, is that a Frankenstein scenario in the making? Probably not. “While scientists are focusing on an array of applications in the areas of health, agriculture and environment, fi ghting disease and improving health in humans is a top priority for many,” said Dr. Catherine Bliss, assistant professor in the University of California, San Francisco, Department of Social and Behavioral Sciences. As the name suggests, gene editing is the process whereby scientists “cut and paste strands of DNA — actually inserting, removing and replacing them — to modify an organism’s genetic code,” Bliss said. In a 2015 summit, scientists from around the globe agreed to channel their eff orts toward fighting disease. With gene editing, scientists have been able to switch off the DNA that cause certain diseases. This kind of gene modifi cation has been used to tackle leukemia in blood cells. Another emerging specialty, known as gene therapy, uses certain cells that can attack and kill unhealthy cancer cells. Research has shown that by enhancing what are known as T cells, they can reverse the eff ects of certain cancers. The T cells act as a drug and have proven eff ective in treating lymphoma and hemophilia in trials.

Gene editing still is largely a research project, but one with potential practical applications. The U.S. government funds research into medical uses, but how far will other nations go? “Will we create a race of smarter, faster, stronger people? Will some of us live substantially longer than others? Will [genetically modifi ed] humans come to rule over non-GMOs, forcing them into a subservient underclass? These are but a few of the questions we must ask ourselves as we watch this technology develop,” Bliss said.


For state and local governments, the more immediate impact of genetic tinkering will likely come on the economic front. As research support builds for gene editing, government labs, state universities and other public institutions may be uniquely poised to reap a fi nancial benefi t. As Bliss noted, San Francisco area authorities have fought hard to keep the region on the cutting edge of R&D investments, and it has proved a lucrative path.

“So this is as much an economic matter for state and local governments as one of public health,” she said. In the longer term, state and local authorities may fi nd themselves grappling with a host of ethical issues. Genetic editing in the food chain already is raising public concerns, and those voices will only amplify as practical implementations related to human health arise. “In the future, state and local governments may find themselves deliberating over policy regarding specifi c applications,” Bliss said. “There isn’t any policy — federal, state or local — thus far.


Gestural Computer Interface.

Gestural technology seeks to adapt the user interface, to make it more eff ective, more fl exible, more intuitive. The user may interact with a computer monitor, a white board or a big array of screens. Commands may be conveyed through gloves or a wand or simply by waving a pattern in the air.

This creates a new dynamic for presentations. Instead of having to clickand-drag on a screen, “now you can grab something, resize it and bring it into the picture from some other place More than mere convenience, the promise of gestural tech lies in its ability to give people freer access to the vast volumes of data that are growing up in the public realm. “People carry around massive amounts of data on smartphones and tablets and laptops. But can you really solve big problems on a smartphone? No. You need better access to that information,” he said.

“Sometimes you need access to multiple streams of information, and the ability to manipulate that data is key. It’s not just about having the information. It’s about being able to combine that data, to cut and paste it and to share it.” This raises interesting possibilities for government, said Michael Hong, principal at global management consulting fi rm A.T. Kearney. When combined with virtual or augmented reality, the technology could open the door to smoother, more eff ective citizen services. Gestural technology could also help government to better serve those with disabilities.

“These are customized, instantaneous, personalized experiences. If someone can move their fi ngers or arms and you have sensors that pick up on that, now they can interface and engage with government in ways that they haven’t been able to in the past,” he said. Gestural tech could bring new challenges too, as for instance with the auto industry’s interest in establishing hand gestures as a way to simplify the control interfaces in a car. “So now I will be able to engage with my music system or my climate control without even having to touch anything? For government, there are going to have to be safety precautions considered with that,” Hong said. “There has to be some policy impact.”


Measuring Cities Health System Using Sewers

Can the health of a city be measured through its sewer system? The Senseable City Lab at the Massachusetts Institute of Technology thinks it can and is putting robotic devices into the sewers of Cambridge to fi nd out. The prototype device now undergoing tests measures just a few factors, such as water fl ow and temperature. But if the robot works as proposed, the next step will be to place more sensors on it to test for specifi c pathogens, such as viruses and infectious diseases, according to researcher Newsha Ghaeli. “The idea is that if we can look at types of viruses found in the sewers, we can start to understand how diseases are started and how outbreaks move through cities. The robot can be used to act as an early warning system for infectious diseases,” she said. In 2013, researchers in southern Israel discovered the polio virus while testing sewage samples. The government quickly responded with blanket vaccinations for the local population before the virus could spread. While most city governments run tests on what is contained in the water at wastewater treatment plants, Ghaeli said these facilities are disconnected from the cities they serve and that the water often contains runoff from streets and has been traveling for hours, which means important chemical bonds are breaking down, making the testing less accurate. “This robotic device, which is lowered right into the sewer lines, measures what’s happening in the heart of the city,” she said. The project, which is being funded by a grant from a Kuwaiti-based foundation, is part of the lab’s broader eff ort to understand human behavior within a city. By bringing together bioengineering with Internet of Things sensor technology and large pools of data, researchers hope to fi nd better ways to link urban life — and health — with public policy.


Comments

Popular posts from this blog

Protecting Birds

Protecting Birds During the 1990s, there was just one Spix’s macaw left in the wild and that one disappeared in 2000. Luckily, there is a captive population that should reach 170 by next year and there are plans for a reintroduction programme. Spix’s macaw is only found in Brazil and is confined to the socalled ‘caatinga’ biome in the north-east. Caatinga is a dry area dominated by small trees, bushes and cacti and forests with larger trees that form alongside rivers. The parrots require the large trees, especially the caraibas that can grow 25m high, for nest cavities. Though habitat loss was a factor in its disappearance, the main reason the species went extinct in the wild was the illegal pet trade. And while there is still a problem with people trying to collect wild birds, the area around Curaçá, where the caatinga habitat is found, is very different to what it was 30 or 40 years ago and it is much harder to do things without being noticed. For instance, when a Spix’

Young People And Agriculture

In the eyes of many, farming is not considered a desirable career. However, a growing number of urban youth see things differently. After a ‘first life’ outside agriculture, and often with a university degree, they have decided to become farmers. We call them new peasants. And many of these young people choose agroecology as an alternative way to enter the food system, promoting both social and environmental sustainability. This is a new urban–rural link, and a growing counter force to the dominant trend of rural outmigration. In interviews, new peasants in France told us they find fulfillment in farming. But they also emphasised that farming is a risky business, and it takes several years to build a secure livelihood from it. New peasants have little prior agricultural knowledge, and certainly no ‘family land’ to inherit. They often have to learn how to farm without the support of their rural neighbours who consider them ‘outsiders’. Lack of land due to high prices and land grab

Amazing Facts About Spiders

Though we often refer to Tegenaria and Eratigena as house spiders, for most of the year nowadays we are actually far more likely to come across these species in our gardens, garages and outbuildings. These are areas where we tend to be far less scrupulous in our cleaning and tidying – and where there is therefore much more potential prey. If spiders are left undisturbed, females can live for several years and may stay in the same web complex throughout this time, repairing the sheet and enlarging the funnel as necessary. So, if house spiders are more commonly seen in locations other than our houses for most of the year, why do we see so many of them in our bedrooms, bathrooms and living rooms in autumn? The reason, as with so many activities involving animals, is sex. During spider season, male spiders are on the lookout for females and it is their romantic wanderings that bring them into our homes. In common with many different animals, it is male spiders that are the disper