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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…
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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,
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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…
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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.…
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Help One Of Our Own PSW Members

"Hello PSW Members –

This is a non-trading topic, but I wanted to post it during trading hours so as many eyes can see it as possible.  Feel free to contact me directly at jennifersurovy@yahoo.com with any questions.

Last fall there was some discussion on the PSW board regarding setting up a YouCaring donation page for a PSW member, Shadowfax. Since then, we have been looking into ways to help get him additional medical services and to pay down his medical debts.  After following those leads, we are ready to move ahead with the YouCaring site. (Link is posted below.)  Any help you can give will be greatly appreciated; not only to help aid in his medical bill debt, but to also show what a great community this group is.

http://www.youcaring.com/medical-fundraiser/help-get-shadowfax-out-from-the-darkness-of-medical-bills-/126743"

Thank you for you time!

 
 

OpTrader

Swing trading portfolio - week of July 28th, 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 ...



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Zero Hedge

Apocalypse Preview: Chinese River Turns Blood-Red

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

Things in China are getting downright biblical.

First it was the floating animal apocalypse: who can forget the 16,000 floating pigs, followed by a thousand dead ducks, culminating with 5 dead black swans. But nothing quite beats the dram...



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Phil's Favorites

3 reasons Yellen's FOMC remains dovish

3 reasons Yellen's FOMC remains dovish

Courtesy of Sober Look

What makes Janet Yellen and a number of other FOMC members so dovish with respect to monetary policy and in particular the trajectory of rate normalization? A Credit Suisse report sites 3 key factors, which Yellen calls  “unusual  headwinds":

1. Tighter fiscal policy.

The combination of lower government spending and tax increases has created a drag on economic growth (see chart). This drag is now diminishing, but given the tepid recovery Yellen still views it as a headwind.

...

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Chart School

Daily Market Commentary: Bears Flash Intentions

Courtesy of Declan.

Bears made further inroads to the Semiconductor index, and Russell 2000, which delivered knock on results elsewhere.  The Semiconductor index had the worst of the action, slicing through its 50-day MA with a near 2% loss. If bulls wanted value a quick return above the 50-day MA would set up a 'bear trap' and may generate enough juice for a challenge of 650.


The Russell 2000 is playing for a swing low retest, although the 200-day MA may provide a long opportunity (stops on loss of 1,131). Technicals with the bears, but not oversold.

...



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Stock World Weekly

Stock World Weekly

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

Our weekly newsletter Stock World Weekly is ready for your enjoyment.

Read about the week ahead, trade ideas from Phil, and more. Please click here and sign in with your PSW user name and password. Or take a free trial.

We appreciate your feedback--please let us know what you think in the comment section below.  

...

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Insider Scoop

UPDATE: Lifepoint Hospitals Posts Higher Q2 Earnings, Lifts Full-Year Outlook

Courtesy of Benzinga.

Related LPNT Stocks Hitting 52-Week Highs Earnings Scheduled For July 25, 2014

Lifepoint Hospitals (NASDAQ: LPNT) reported a rise in its second-quarter earnings and raised its forecast for the year.

Lifepoint Hospitals now projects full-year earnings of $2.99 to $3.19 per share, versus its earlier outlook of $2.38 to $2.78 per share. It expects revenue of $4.25 billion to $4.35 billion, versus its earlier outlook of $4.0 billion to $4.1 billion.

The Brentwood, Tennessee-based comp...



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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...

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Digital Currencies

BitLicense Part 1 - Can Poorly Thought Out Regulation Drive the US Economy Back into the Dark Ages?

Courtesy of Reggie Middleton.

An Op-Ed piece penned by Veritaseum Chief Contracts Officer, Matt Bogosian

This past weekend (despite American Airlines' best efforts), Reggie and I made it to the Second Annual North American Bitcoin Conference in Chicago. While there were some very creative (and very ambitious) ideas on how to try to realize the disruptive Bitcoin protocol, one of the predominant topics of discussion was New York Superintendent of Financial Services Benjamin Lawsky's proposed Bitcoin regulations (the BitLicense proposal) - percieved by many participants at the event as an apparent ...



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Option Review

Starbucks Options Volume Rises Ahead Of Earnings After The Bell

Volume in Starbucks options is running approximately three times the average daily level for the stock as of 1:15 p.m. ET ahead of the company’s third-quarter earnings report after the close. Shares in the name are up roughly 1.0% just before midday to stand at $79.95. Traders of SBUX options today are more active in calls than puts, with the call/put ratio hovering near 2.0 as of the time of this writing. Much of the volume is in 25Jul’14 expiry options contracts, most notably in the $80 and $83 strike calls which have traded roughly 3,350 and 2,550 times respectively and in excess of existing open interest levels in both strikes. A portion of the volume in the $80 and $83 calls appears to be part of a spread trade.

...

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Sabrient

Sector Detector: Bulls remain unfazed by borderline Black Swans

Courtesy of Sabrient Systems and Gradient Analytics

Despite a highly eventful week in the news, not much has changed from a stock market perspective. No doubt, investors have grown immune to the daily reports of geopolitical turmoil, including Ukraine vs. Russia for control of the eastern regions, Japan’s dispute with China over territorial waters, Sunni vs. Shiite for control of Iraq, Christians being driven out by Islamists, and other religious conflicts in places like Nigeria and Central African Republic. But last Thursday’s news of the Malaysian airliner tragically getting shot down over Ukraine, coupled with Israel’s ground incursion into Gaza, had the makings of a potential Black Swan event, which in my view is the only thing that could derail the relentless bull march higher in stocks.

Nevertheless, when it became clear that the airline...



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Market Shadows

Danger: Falling Prices

Danger: Falling Prices

By Dr. Paul Price of Market Shadows

 

We tried holding up stock prices but couldn’t get the job done. Market Shadows’ Virtual Value Portfolio dipped by 2% during the week but still holds on to a market-beating 8.45% gain YTD. There was no escaping the downdraft after a major Portuguese bank failed. Of all the triggers for a large selloff, I’d guess the Portuguese bank failure was pretty far down most people's list of "things to worry about." 

All three major indices gave up some ground with the Nasdaq composite taking the hardest hi...



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Pharmboy

Biotechs & Bubbles

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

Well PSW Subscribers....I am still here, barely.  From my last post a few months ago to now, nothing has changed much, but there are a few bargins out there that as investors, should be put on the watch list (again) and if so desired....buy a small amount.

First, the media is on a tear against biotechs/pharma, ripping companies for their drug prices.  Gilead's HepC drug, Sovaldi, is priced at $84K for the 12-week treatment.  Pundits were screaming bloody murder that it was a total rip off, but when one investigates the other drugs out there, and the consequences of not taking Sovaldi vs. another drug combinations, then things become clearer.  For instance, Olysio (JNJ) is about $66,000 for a 12-week treatment, but is approved for fewer types of patients AND...



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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...



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