Guest View
User: Pass: | become a member
Posts Tagged ‘bacteria’

You Know Your Blood Type. What About Your Gut Bug Type?

By AMIE NINH, courtesy of TIME

Veronika Burmeister via Getty Images

VERONIKA BURMEISTER VIA GETTY IMAGES

Consider this: of the trillions upon trillions of cells in the human body, only about 1 in 10 is actually human. The rest belong to microbes, which colonize every inch of you, from the inside of your mouth to the skin between your toes. It’s no wonder, then, that research is increasingly finding that the diversity of these microbes has important effects on health.

The vast majority of microbes — perhaps up to 100 trillion of them — live in our guts. So-called gut bugs help digest our food, assist our immune systems, maintain the health of the intestines, produce vitamins, aid metabolism and extract calories from food (which is why much research has associated gut bugs with obesity).

To better understand the way gut bugs work, a new study has aimed to categorize the lot of them. The study, led by Peer Bork of the European Molecular Biology Laboratory in Heidelberg, Germany, found that the bacteria in our guts falls into one of three distinct ecosystems, or "enterotypes."

"The three gut types can explain why the uptake of medicines and nutrients varies from person to person," Jeroen Raes, a bioinformatician at Vrije University in Brussels and coauthor of the new study, said in a statement. Which means that knowing a person’s enterotype could someday help doctors tailor drug treatments or diets to suit them better.

The New York Times reports:

Or, [Bork] speculated, doctors might be able to use enterotypes to find alternatives to antibiotics, which are becoming increasingly ineffective. Instead of trying to wipe out disease-causing bacteria that have disrupted the ecological balance of the gut, they could try to provide reinforcements for the good bacteria. "You’d try to restore the type you had before," he said.

For the new study, the research team evaluated stool samples from 22 European individuals, extracted the DNA and determined its composition by using DNA analysis and computers. They also compared the results to other published findings from Japanese and American subjects.

Scientists found that each of the three enterotypes was composed of a unique balance of microbe species. The team named each type after its dominant bacteria: Bacteroides, an enterotype that’s known to break down carbohydrates and is better at making vitamins B2, B5, C and H; Prevotella, which degrades mucus and produces more B1 and folic acid; and Ruminococcus, which…
continue reading


Tags: , , , ,




Good News for a Change? A Newly-Discovered Species of Bacteria May Be Breaking Down Oil in Deepwater Plumes in the Gulf

Good News for a Change? A Newly-Discovered Species of Bacteria May Be Breaking Down Oil in Deepwater Plumes in the Gulf

Courtesy of Washington’s Blog

DULARGE, LA - AUGUST 16: Daniel May runs his small shrimping skiff through a bayou on August 16, 2010 near DuLarge, Louisiana. Today marks the beginning of the shrimping season for white shrimp in Louisiana, the first since the Deepwater Horizon accident in the Gulf of Mexico. (Photo by Win McNamee/Getty Images)

A team of scientists published a paper today in the journal Science which provides some hopeful news.

Specifically, a team of scientists have discovered a new species of oil-eating microbes which thrive in the deepwater of the Gulf of Mexico:

The biological effects and expected fate of the vast amount of oil in the Gulf of Mexico from the Deepwater Horizon blowout are unknown due to the depth and magnitude of this event. Here, we report that the dispersed hydrocarbon plume stimulated deep-sea indigenous {gamma}-proteobacteria that are closely related to known petroleum-degraders. Hydrocarbon-degrading genes coincided with the concentration of various oil contaminants. Changes in hydrocarbon composition with distance from the source and incubation experiments with environmental isolates demonstrate faster-than-expected hydrocarbon biodegradation rates at 5°C.

Even better, the scientists believe that this new species (pronounced "gamma-proteo-bacteria") may not suck up as much oxygen as previously-discovered species:

Based on these results, the potential exists for intrinsic bioremediation of the oil plume in the deep-water column without substantial oxygen drawdown.

This discovery is especially important given that a leading expert on oil-eating microbes – Dr. David Valentine – failed to find any of the leading known oil-eating bacteria in the deepwater plumes.

As AP notes:

A newly discovered type of oil-eating microbe is suddenly flourishing in the Gulf of Mexico.

***

Their findings are based on more than 200 samples collected from 17 deepwater sites between May 25 and June 2. They found that the dominant microbe in the oil plume is a new species, closely related to members of Oceanospirillales.

***

[Lead author Dr. Terry Hazen, co-director of the Earth Sciences Division of the Lawrence Berkeley National Laboratories], suggested that the bacteria may have adapted over time due to periodic leaks and natural seeps of oil in the Gulf.

Scientists also had been concerned that oil-eating activity by microbes would consume large amounts of oxygen in the water, creating a "dead zone" dangerous to other life. But the new study found that oxygen saturation outside the oil plume was 67-percent while within the plume it was 59-percent.

Many well-known bacteria – such as Salmonella,
continue reading


Tags: , , , , ,




Scientist Creates Life. That’s a Good Thing, Right?

Scientist Creates Life. That’s a Good Thing, Right?

By Alice Park, courtesy of TIME 

It’s the ultimate science experiment, really — taking a handful of chemicals, mixing them in just the right combination and presto — life!

And after nearly 15 years of such toiling in his labs in Rockville, Md., J. Craig Venter, co-mapper of the human genome, has done just that. Reporting in the journal Science, he describes a remarkable experiment in which he and the team at his eponymous institute have pieced together the entire genome of a bacterium and then inserted those genetic instructions into another bacterium. The cell booted up, and life — by nearly any definition — was created. 

"We’re basically getting new life out of the computer," Venter says. "We started with a genetic code in the computer, wrote the ‘software,’ put it into the cell and transformed it biologically into a new species. We’re still stunned by it as a concept."

With Venter’s breakthrough it’s now possible to splice and snap together genetic material to create a Legoland’s worth of new genetic combinations. Ideally, some of these would have robust industrial purposes, such as manufacturing bacteria that can churn out valuable vaccine components to shorten production times during an epidemic, or co-opting organisms such as algae to pump out new sources of biofuel-based energy. 

"Just imagine these cells where all we do is put in a new piece of chemical software and all the characteristics of the cell start changing to become what was dictated by the new software," says Venter. "These are biological transformers."

The paper is the final and most critical step toward realizing what began as scientific curiosity among the scientists at the J. Craig Venter Institute back in the early 1990s, when many of the same researchers first succeeded in sequencing the entire genome of a self-replicating organism, the bacterium Haemophilus influenzae. That led to the generation of the complete sequencing of the smallest known genome, at 582,000 base pairs, belonging to another bacterium, Mycoplasma genitalium. Such smallness was intriguing because it led Venter to the philosophical question that inspired the current research — what was the minimum genome required to create life in the lab? 

For the study just released, the answer turned out to be about 1 million, and the paper describes how he did it. DNA is made up of millions of…
continue reading


Tags: , , , , , , ,




Bacteria, Boids and Market Instability

Here’s some weekend reading in advance. Consider throwing away economic models based on the misconception that people behave rationally and start anew with the premise that we are like mindless bacteria. – Ilene

Bacteria, Boids and Market Instability

bacterial behaviorCourtesy of Tim at  The Psy-Fi Blog

The Gaps Between People

Old-time economics saw investors as rational individuals, all behaving autonomously in a logical fashion, rather like Mr. Spock umbilically attached to Deep Thought. Today not even economists really believe that this is how people actually operate, but figuring out something better is a not insignificant task. Psychologists, however, have long known that what happens in the gaps between people is as important as what happens in the gaps between their ears – so is there something going on in the interactions between investors, which causes market instability?

One possible answer comes from the study of bacteria. Just as we might have suspected all along, stockmarket investor behaviour can be modelled by examining the way a bunch of brainless, single celled and barely animate creatures interested only in food and reproduction disport themselves on a Petri plate. Sometimes analogies are just too sweet.

Investing Earthquakes

The critical thing about any economic model is that it arrives at results that look like what we actually see in markets. Mostly the jargon fixated commentators who dominate the media are happy to talk in terms of business cycles when, in reality, the only cycles seen in most investing circles are the ones used by the boys and girls delivering lunchboxes. What we actually get, if we look at stockmarkets and stock prices, is something that looks like the readout we see from a seismograph when an earthquake occurs.

If we start by making a few assumptions about what investors actually do in real life – like, for instance, that they don’t behave rationally and that they tend to copy successful behaviour from people they’re closely connected to – we can rapidly create a model that produces outputs that look very different from those generated by models of people who behave independently and rationally. In fact the output of these models looks a lot like the readout we see from a seismograph when an earthquake occurs.

So it seems that the interactions between investors and how these interactions affect their willingness or otherwise to invest is the critical thing in these models.…
continue reading


Tags: , , , , ,




 
 
 

Zero Hedge

The "Real Pain" Is About To Begin As Chinese Currency Slumps To 19-Month Lows

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

The PBOC's willingness to a) enter the global currency war (beggar thy neighbor), and b) 'allow' the Yuan to weaken and thus crush carry traders and leveraged 'hedgers' is about to get serious. The total size of the carry trades and hedges is hard to estimate but Deutsche believes it is around $500bn and as Morgan Stanley notes the ongoing weakness means things can get ugly fast as USDCNY crosses the crucial 6.25 level where losses from hedge products begin to surge. This is a critical level as it pre-dates Fed QE3 and BoJ QQE levels and the...



more from Tyler

Market Shadows

Riding in Toyota Today

Riding in Toyota Today

By Paul Price of Market Shadows

Market Shadows Virtual Value Portfolio put most of our remaining cash reserves to work this morning in buying 38 ADRs (American Depository Receipts) of Toyota Motor Company (TM) the world’s largest seller of automobiles and trucks.  We like and already own shares of Honda (HMC) as well.

The stock was down overnight due to negative action in the Japanese marketplace so we got a great entry price of just $106.57 per ADR today.

Toyota’s 52-week range has b...



more from Paul

Chart School

How Long to the Next Recession? iM's Weekly Update

Courtesy of Doug Short.

Advisor Perspectives welcomes guest contributions. The views presented here do not necessarily represent those of Advisor Perspectives.

The BCI at 169.3 is down from last week's upward revised level of 169.5. BCIg, the smoothed annualized growth of BCI, at 16.9 is down from last week's upward revised 17.5. This week's BCI shows no recessionary trends.

Figure 1 plots BCIp, BCI, BCIg and the S&P500 together with the thresholds (red lines) that need to be crossed to be able to call a recession.



Click for a larger image

The off-peak indicato...



more from Chart School

Phil's Favorites

Initial Jobless Claims Jump Most In 4 Months, Continuing Claims At Best Since 2007

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

Initial jobless claims surged from 304k to 329k this week, the biggest weekly rise since mid-December. From exuberance at new cycle lows, we swing to the average of the last 8 months. This is the biggest miss to expectations in over 2 months. Continuing Claims dropped further to new cycle lows at 2.68 million (beating expectations) - its lowest since Dec 2007. So this is as good as it gets for continuing claims - America is back at its best!

Initial claims surges back up to its average of the last 8 months...

...



more from Ilene

Insider Scoop

Great Lakes Dredge & Dock Sells Demolition Business for $5.3M

Courtesy of Benzinga.

Related GLDD Imperial Capital's Top 8 Investment Opportunities Barron's Recap: Meltdown For 3D Printing?

vGreat Lakes Dredge & Dock Corporation (NASDAQ: GLDD), the largest provider of dredging services in the United States and a major provider of environmental and remediation services, today announced that on April 23, 2014, it completed the sale of NASDI, LLC and Yankee Environmental Services, LLC, its two subsidiaries that comprise ...



http://www.insidercow.com/ more from Insider

All About Trends

Mid-Day Update

Reminder: David is available to chat with Members, comments are found below each post.

Click here for the full report.




To learn more, sign up for David's free newsletter and receive the free report from All About Trends - "How To Outperform 90% Of Wall Street With Just $500 A Week." Tell David PSW sent you. - Ilene...

more from David

Option Review

Casino Stocks LVS, WYNN On The Run Ahead of Earnings

Shares in Las Vegas Sands Corp. (Ticker: LVS) are up sharply today, gaining as much as 5.7% to touch $80.12 and the highest level since April 4th, mirroring gains in shares of resort casino operator Wynn Resorts Ltd. (Ticker: WYNN). The move in Wynn shares appears, at least in part, to follow a big increase in target price from analysts at CLSA who upped their target on the ‘buy’ rated stock to $350 from $250 a share. CLSA also has a ‘buy’ rating on Las Vegas Sands with a $100 price target according to a note from reporter, Janet Freund, on Bloomberg. Both companies are scheduled to report first-quarter earnings after the closing bell on Thursday.

...

more from Caitlin

Sabrient

What the Market Wants: Market Poised to Head Higher: 3 Stocks to Consider

Reminder: Sabrient is available to chat with Members, comments are found below each post.

Courtesy of David Brown, Sabrient Systems and Gradient Analytics

Yesterday, the market continued its winning ways for the fifth consecutive day.  The S&P 500 closed within 1% of its all-time high, and the DJI was even closer to its all-time high.  Healthcare, Energy and Technology led the sectors while Financials, Telecom, and Utilities finished slightly in the red.  All three sectors in the red are typically flight-to-safety stocks, so despite lower than average volume, the market appears poised to make new highs.

Mid-cap Growth led the style/caps last week, up 2.87%, and Small-cap Growth trailed, up 2.22%. This week will bring well over 100 S&P 500 stocks reporting their March quarter earn...



more from Sabrient

OpTrader

Swing trading portfolio - Week of April 21st, 2014

Reminder: OpTrader is available to chat with Members, comments are found below each post.

This post is for all our live virtual trade ideas and daily comments. Please click on "comments" below to follow our live discussion. All of our current  trades are listed in the spreadsheet below, with entry price (1/2 in and All in), and exit prices (1/3 out, 2/3 out, and All out).

We also indicate our stop, which is most of the time the "5 day moving average". All trades, unless indicated, are front-month ATM options. 

Please feel free to participate in the discussion and ask any questions you might have about this virtual portfolio, by clicking on the "comments" link right below.

To learn more about the swing trading virtual portfolio (strategy, performance, FAQ, etc.), please click here...



more from OpTrader

Stock World Weekly

Stock World Weekly

Newsletter writers are available to chat with Members regarding topics presented in SWW, comments are found below each post.

Here's this week's Stock World Weekly. Click here and sign in with your PSW user name and password, or sign up for a free trial.

...

more from SWW

Digital Currencies

Facebook Takes Life Seriously and Moves To Create Its Own Virtual Currency, Increases UltraCoin Valuation Significantly

Courtesy of ZeroHedge. View original post here.

Submitted by Reggie Middleton.

The Financial Times reports:

[Facebook] The social network is only weeks away from obtaining regulatory approval in Ireland for a service that would allow its users to store money on Facebook and use it to pay and exchange money with others, according to several people involved in the process. 

The authorisation from Ireland’s central bank to become an “e-money” institution would allow ...



more from Bitcoin

Promotions

See Live Demo Of This Google-Like Trade Algorithm

I just wanted to be sure you saw this.  There’s a ‘live’ training webinar this Thursday, March 27th at Noon or 9:00 pm ET.

If GOOGLE, the NSA, and Steve Jobs all got together in a room with the task of building a tremendously accurate trading algorithm… it wouldn’t just be any ordinary system… it’d be the greatest trading algorithm in the world.

Well, I hate to break it to you though… they never got around to building it, but my friends at Market Tamer did.

Follow this link to register for their training webinar where they’ll demonstrate the tested and proven Algorithm powered by the same technological principles that have made GOOGLE the #1 search engine on the planet!

And get this…had you done nothing b...



more from Promotions

Pharmboy

Here We Go Again - Pharma & Biotechs 2014

Reminder: Pharmboy is available to chat with Members, comments are found below each post.

Ladies and Gentlemen, hobos and tramps,
Cross-eyed mosquitoes, and Bow-legged ants,
I come before you, To stand behind you,
To tell you something, I know nothing about.

And so the circus begins in Union Square, San Francisco for this weeks JP Morgan Healthcare Conference.  Will the momentum from 2013, which carried the S&P Spider Biotech ETF to all time highs, carry on in 2014?  The Biotech ETF beat the S&P by better than 3 points.

As I noted in my previous post, Biotechs Galore - IPOs and More, biotechs were rushing to IPOs so that venture capitalists could unwind their holdings (funds are usually 5-7 years), as well as take advantage of the opportune moment...



more from Pharmboy



FeedTheBull - Top Stock market and Finance Sites



About Phil:

Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...

Learn more About Phil >>


As Seen On:




About Ilene:

Ilene is editor and affiliate program coordinator for PSW. She manages the site market shadows, archives, more. Contact Ilene to learn about our affiliate and content sharing programs.

Market Shadows >>