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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.

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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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Sabrient

Sector Detector: Defensive sectors lead hesitant market, but traders honor long-standing bullish support

Courtesy of Sabrient Systems and Gradient Analytics

Last week, the major indexes fell back below round-number thresholds that had taken a lot of effort to eclipse. There has been an ongoing ebb-and-flow of capital between risk-on and risk-off, including high sector correlations, which is far from ideal. But at the end of it all, the S&P 500 found itself right back on top of long-standing support and poised for a bounce, and Monday’s action proved yet again that bulls are determined to defend their long-standing uptrend line.

In this weekly update, I give my view of the current market environment, offer a technical analysis of the S&P 500 chart, review our weekly fundamentals-based SectorCast rankings of the ten U.S. business sectors, and then offer up some actionable trading ideas, including a sector rotation strategy using ETFs and an enh...



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Phil's Favorites

Historical Perspective on CPI Deflations: How Damaging are They?

Courtesy of Mish.

Yet another central bank has announced a warning about the perils of deflation. Please consider China Central Bank Calls for Vigilance on Deflation.
China's central bank governor Zhou Xiaochuan warned on Sunday that the country needs to be vigilant for signs of deflation and said policymakers were closely watching slowing global economic growth and declining commodity prices.

Zhou's comments are likely to add to concerns that China is in danger of slipping into deflation and underline increasing nervousness among policymakers as the economy continues to lose momentum...



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Zero Hedge

Did Reuters Falsify The Testimony Of A MH-17 Crash Witness?

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

Even as the world's attention is gripped by the latest airline crash tragedy, in which the motivation of a Germanwings co-pilot to crash his plane with nearly 150 people on board will forever remain in the area of speculation, the most dramatic airplane incident of 2014, that of Malaysian flight MH-17 over east Ukraine, remains - and likely will remain forever 0 unsolved. That, however, does not prevent the media outlets on both sides of the ideological divide to insert their own narrative when the fancy strikes them.

Case in point is the "Exclusive" Reuters report by Anton Zverev from March 12, titled "...



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Chart School

Small Caps pressuring 'Bull Trap'

Courtesy of Declan.

The Dow had the best of the action, with higher volume buying to close the day out. The index closed above the 20-day and 50-day MAs. The next challenge is to push above 18,100; which is the 'bull trap' and the recent spike push to 18,205.


The S&P didn't quite enjoy the same relative gain as the Dow, and today's volume was lighter than yesterday. However, it did manage a close above 20-day and 50-day MA.


The Nasdaq also pushed higher volume accumulation. It's probably still a ...

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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

Federal Agents Investigating Bitcoin Money Laundering Stole Over $1 Million In Bitcoin

Courtesy of ZeroHedge. View original post here.

This is one of those sad times when The Onion realizes it has badly, and permanently, missed its IPO window.

Just released from the Department of Justice

Former Federal Agents Charged With Bitcoin Money Laundering and Wire Fraud

Agents Were Part of Baltimore’s Silk Road Task Force

Two former federal agents have been charged with wire fraud, money laundering and related offenses for stealing digital currency during their investigation of the Silk Road, an underground black market that al...



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OpTrader

Swing trading portfolio - week of March 30th, 2015

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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Promotions

Watch the Phil Davis Special on Money Talk on BNN TV!

Kim Parlee interviews Phil on Money Talk. Be sure to watch the replays if you missed the show live on Wednesday night (it was recorded on Monday). As usual, Phil provides an excellent program packed with macro analysis, important lessons and trading ideas. ~ Ilene

 

The replay is now available on BNN's website. For the three part series, click on the links below. 

Part 1 is here (discussing the macro outlook for the markets) Part 2 is here. (discussing our main trading strategies) Part 3 is here. (reviewing our pick of th...

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Market Shadows

Kimble Charts: South Korea's EWY

Kimble Charts: South Korea's EWY

By Ilene 

Chris Kimble likes the iShares MSCI South Korea Capped (EWY), but only if it breaks out of a pennant pattern. This South Korean equities ETF has underperformed the S&P 500 by 60% since 2011.

You're probably familiar with its largest holding, Samsung Electronics Co Ltd, and at least several other represented companies such as Hyundai Motor Co and Kia Motors Corp.

...



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Option Review

Cypress Semi Draws Bullish Option Plays

Bullish trades abound in Cypress Semiconductor options today, most notably a massive bull call spread initiated in the July expiry contracts. One strategist appears to have purchased 30,000 of the Jul 16.0 strike calls at a premium of $0.89 each and sold the same number of Jul 19.0 strike calls at a premium of $0.22 apiece. Net premium paid to put on the spread amounts to $0.67 per contract, thus establishing a breakeven share price of $16.67 on the trade. Cypress shares reached a 52-week high of $16.25 back on Friday, March 13th, and would need to rally 4.6% over the current level to exceed the breakeven point of $16.25. The spread generates maximum potential profits of $2.33 per contract in the event that CY shares surge more than 20% in the next four months to reach $19.00 by July expiration. Shar...



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Pharmboy

2015 - Biotech Fever

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

PSW Members - well, what a year for biotechs!   The Biotech Index (IBB) is up a whopping 40%, beating the S&P hands down!  The healthcare sector has had a number of high flying IPOs, and beat the Tech Sector in total nubmer of IPOs in the past 12 months.  What could go wrong?

Phil has given his Secret Santa Inflation Hedges for 2015, and since I have been trying to keep my head above water between work, PSW, and baseball with my boys...it is time that something is put together for PSW on biotechs in 2015.

Cancer and fibrosis remain two of the hottest areas for VC backed biotechs to invest their monies.  A number of companies have gone IPO which have drugs/technologies that fight cancer, includin...



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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 user name and password. 

 

...

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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!




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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...

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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.

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