Oct 27, 2017 | Instruments & Equipment, Laboratory Instruments & Laboratory Equipment, Laboratory Management and Operations, Laboratory Pathology, Laboratory Testing
Is gut microbiota the fabled fountain of youth? Researchers at Valenzano Research Lab in Germany found it works for killifish. Could it work for other vertebrates as well?
Research into the microbiomes of humans and other animals is uncovering tantalizing insights as to how different microbes can be beneficial or destructive to the host. It is reasonable to expect ongoing research will eventually give microbiologists and clinical laboratories useful new medical laboratory tests that assess an individual’s microbiome for diagnostic and therapeutic purposes.
Human microbiota (AKA, microbiome) have been identified as having a key role in several different health conditions. In previous ebriefings, Dark Daily reported on several breakthroughs involving the microbiome that bring the promise of precision medicine ever closer. Research and clinical studies are contributing to more accurate diagnoses, identification of best drugs for specific patients, and, enhanced information for physician decision-making, to name just a few benefits.
Now, researchers at Valenzano Research Lab at the Max Planck Institute for Biology of Aging in Cologne, Germany, are looking into whether gut microbiota could potentially increase life spans in all vertebrates, a group of species that includes humans.
Valenzano Lab published its study online in August. The team of scientists and researchers led by Dario Valenzano, PhD, focused on the longevity of the turquoise killifish (Nothobranchius furzeri), a tiny fish native to the African countries of Mozambique and Zimbabwe. They found that when older killifish ate the fecal matter of younger killifish they lived longer. The fecal matter carried the microbiota to the older fish and extended their lifespans.
Moving Microbiome from One Gut to Another
To perform the research, Valenzano and his team first treated killifish that were nine and a half weeks old (considered middle-aged) with antibiotics to cleanse their gut flora. The fish were then placed in a sterile aquarium containing the gut contents of young adult killifish that were just six weeks old. Although killifish won’t typically eat feces, they would nip at the gut contents in the water and swallow some of the microbes from the younger fish in the process. The researchers discovered that the transplanted microbes were able to successfully colonize the stomachs of the older fish.
Dario Valenzano, PhD (above), gazes at an older Killifish, the subject in his research into increased aging at the Valenzano Research Lab in Cologne, Germany. Studies of the microbiomes of different species is expected to eventually give microbiologists new and useful clinical laboratory tests. (Photo copyright: Max Planck Institute for Biology of Aging.)
When the middle-aged killifish reached the age of 16 weeks—considered elderly—their gut microbiomes were still similar to that of a six-week-old fish. The process had a noticeable effect on the lifespan of the killifish that received the microbiome transplants from the young fish. They lived 41% longer than killifish that received microbes from middle-aged fish and their longevity increased by 37% over fish that were not exposed to any treatment at all. In addition, at 16 weeks, the killifish who had received the transplants were much more active than fish of the same age who had not received the transplants.
“These results suggest that controlling the composition of the gut microbes can improve health and increase life span,” the study paper noted. “The model system used in this study could provide new ways to manipulate the gut microbial community and gain key insights into how the gut microbes affect aging. Manipulating gut microbes to resemble a community found in young individuals could be a strategy to delay the onset of age-related diseases.”
Transferring Fecal Microbiota to Save/Extend Human Lives
Previous research has indicated there may be a connection between microbiomes and aging in some animals, and that the diversity of gut microbes decreases with age. This study proved that this same pattern is true in turquoise killifish.
However, Valenzano does not know how the microbes are affecting the lifespans of the older killifish. “It is possible that an aging immune system is less effective at protecting the micro-organisms in the intestines, with the result that there is a higher prevalence of pathogens in older guts. The gut microbiota in a young organism could help to counter this and therefore support the immune system and prevent inflammation. This could lead to longer life expectancy and better health,” he stated in a press release.
“You can really tell whether a fish is young or old based on its gut microbiota,” Valenzano told Nature. He noted, however, that it is too early to determine if fecal transplants can be used in humans to extend life. “I wouldn’t go that far. This is really early evidence that this has a potential positive effect.”
There is, however, a similar procedure used in humans called Fecal Microbiota Transplant or FMT that has demonstrated promising results in treating certain illnesses.
In a fecal transplant, fecal matter is collected from an approved donor, treated, and placed in a patient during a colonoscopy, endoscopy, sigmoidoscopy, or enema. The purpose of the transplant is to replace good bacteria in a colon that has undergone an event that caused the colon to be inundated with bad bacteria, such as Clostridium difficile, resulting in C. diff. infection, a life-threatening illness that, according to the Centers for Disease Control and Prevention (CDC), kills tens of thousands of people each year.
“The challenge with all of these experiments is going to be to dissect the mechanism. I expect it will be very complex,” stated Heinrich Jasper, PhD, in the Nature article. Jasper is a professor at the Buck Institute for Research on Aging in Novato, California. His lab is working on similar research with microbiome transplants in fruit flies. He predicts this type of longevity research will be performed on other animals in the future.
Valenzano’s and Jasper’s research may eventually create new diagnostic tools for microbiologists to assess the microbiome of individual patients. This technology may also enable microbiologists to advise pathologists and clinical laboratories regarding what specific microbes may be harmful and what microbes may be therapeutically beneficial to patients.
—JP Schlingman
Related Information:
‘Young Poo’ Makes Aged Fish Live Longer
Gut Bacteria Affect Aging
Killifish Project Sheds Light on the Genetic Basis for Aging
National Project to Harness Microbes for Health, Environment
Effort to Map Human Microbiome Will Generate Useful New Clinical Lab Tests for Pathologists
Mayo Clinic and Whole Biome Announce Collaboration to Research the Role of the Human Microbiome in Women’s Diseases Using Unique Medical Laboratory Tests
Expanding Knowledge about the Human Microbiome Will Lead to New Clinical Pathology Laboratory Tests
Oct 16, 2017 | Instruments & Equipment, Laboratory Instruments & Laboratory Equipment, Laboratory News, Laboratory Pathology, Laboratory Testing
As science learns more about the human genome, new companies are being formed to offer consumers at-home microbiology test kits, a development many microbiologists consider worrisome
Can consumers rely on the accuracy of at-home microbiology tests that promise to give them useful information about their microbiome? That’s just one question being asked by clinical laboratory scientists and microbiologists in response to the proliferation of companies offering such tests.
Advances in gene sequencing technology, new insights into the human microbiome, and more sophisticated software to analyze test data are fueling the growth of companies that want to offer consumers at-home microbiology test kits. And no less an authority than the American Academy of Microbiology (ASM) states in a 2017 report, that knowledge of the microbiome can revolutionize healthcare as “insights acquired from NGS [next-generation sequencing] methods can be exploited to improve our health as individuals and the greater public health.”
The move towards more “precision medicine” in terms of diagnostics and treatments, according to the ASM, is based in part on microbial genomic testing, which when combined with a patient’s medical history, clinical signs, symptoms, and human genomic information, can help “create treatment pathways that are individualized and tailored for each patient.”
However, critics worry about overreach given current limitations in the analysis and diagnosis of microbiome data produced by testing, particularly in connection to the rising number of consumer self-testing services aimed at the general public.
No Science to Back Up Claims of Accuracy for At-Home Microbiology Tests
A recent article from the MIT Technology Review, notes that these at-home microbiology testing services, while exciting, can only offer limited information—despite claims. Companies such as Thryve, for example, offer visitors to their website a $99 gut health kit, which they recommend using four times per year. The goal is to use the data to target regimens of supplements and “correct” problems the testing identifies.
Another company, uBiome, offers physician-ordered and customer-requested test kits that the company suggests can determine risk factors for disease. However, critics suggest science cannot currently back up those claims. Concerns about the value of such consumer self-testing, the legitimacy of recommendations based on “diagnoses,” and basic health privacy are leading to serious concerns within the scientific community.
Ethics and Realistic Expectations
One additional criticism of consumer self-testing of microbiomes involves privacy. An NPR article on the American Gut Project (AGP), which Dark Daily reported on in previous e-briefings, notes that those tested may be disclosing quite a bit of information about themselves. The article’s author points out basic privacy and value concerns about the AGP. American Gut Project is a crowd-funded “citizen science project,” and part of the larger global Earth Microbiome Project, described as a “massively collaborative effort to characterize microbial life on this planet.” (See Dark Daily, “Get the Poop on Organisms Living in Your Gut with a New Consumer Laboratory Test Offered by American Gut and uBiome,” September 9, 2015.)
One example of an at-home microbiology test marketed to consumers is the SmartGut by uBiome (above). It is “a microbiome screening test that uses precision sequencing technology to identify key microorganisms in your gut, both pathogenic and commensal.” (Photo copyright: uBiome.)
In her blog post on the Center for Microbiome Informatics and Therapeutics’ website, Tami Lieberman, PhD, claims that “microbiome profiling is messy (and I’m not just talking about the sample collection).” Lieberman submitted samples to American Gut and uBiome for her article. Lieberman’s skepticism of the services is based on two things:
1. There is no “gold standard” for microbiome DNA profiling technology or analysis methods at this time; and,
2. Human microbiomes are in her words, “a moving target, changing with age and diet.”
Thus, the best these services can provide, Lieberman argues, is a snapshot of gut microbes at one period of time. Additionally, she claims there is a danger in trying to interpret personal microbiome data. And, Lieberman is not alone in her criticism.
Science Must Be ‘On Guard’ Against Hype about the Usefulness of Microbiome Tests
Martin Blaser, MD, PhD, Director of the Human Microbiome Project at New York University, also criticizes at-home self-tests of microbiomes. In a New York Times article, Blaser points out that the enormous amount of data generated by microbiome testing is “basically uninterpretable” at this time. According to Blaser, scientists can chart the presence, absence, and levels of specific microbiomes and note correlations, but there is no way to know if changes to microbiomes in a particular patient signal disease risk, progression, or development.
The study of microbiomes is still in its nascent stages, so despite there being significant information correlating the presence or absence of specific microbes to diseases, Blaser states that scientists are currently unsure of what that correlation implies. They simply know the correlations exist.
Although discoveries related to human microbiomes, such as the link between fecal bacteria and infant intellect, insights into the connections between gut microbiome and colorectal cancer, and the tenuous and debatable connection between obesity and microbiome diversity make for interesting news, science must be—as William Hanage, PhD, Director of Harvard’s Department of Epidemiology writes in an article for Nature—on guard against allowing microbiomics to be “drowned in a tsunami of its own hype.”
The “gold rush” of companies offering consumers an at-home microbiology test requires skepticism, notes Hanage. He further urges researchers, press officers, and journalists to remain objective. Hanage writes, “Press officers must stop exaggerating results, and journalists must stop swallowing them whole.” Hanage warns that scientists should be on guard against the “buzz around the field” distorting scientific priorities and misleading the public at large. So, while studies of the human microbiome do carry vast potential for medical laboratories and pathologists to change healthcare and healthcare diagnostics, a healthy dose of skepticism is still the best medicine.
—Amanda Warren
Related Information:
Changing Diagnostic Paradigms for Microbiology, May 2017
Gut Check: Scientists are Wary of At-Home Microbiome Tests
Getting Your Microbes Analyzed Raises Big Privacy Issues
American Gut Project Crowdfunds $1 Million to Study the Human Microbiome
Which Bacteria Are In My Poop? It depends Where You Look
Can I Test the Health of My Gut Microbiota?
Study: Fecal Bacteria Linked with Greater Infant Thinking Skills
Microbiology: Microbiome Science Needs a Healthy Dose of Skepticism
Get the Poop on Organisms Living in Your Gut with a New Consumer Laboratory Test Offered by American Gut and uBiome
Clinical Laboratories Might Soon Be ‘Diagnosing’ Obesity and Guiding Therapies That Utilize Engineered Microbes
Mayo Clinic and Whole Biome Announce Collaboration to Research the Role of the Human Microbiome in Women’s Diseases Using Unique Medical Laboratory Tests
Expanding Knowledge about the Human Microbiome Will Lead to New Clinical Pathology Laboratory Tests
Effort to Map Human Microbiome Will Generate Useful New Clinical Lab Tests for Pathologists
Mar 16, 2017 | Instruments & Equipment, Laboratory Instruments & Laboratory Equipment, Laboratory Management and Operations, Laboratory News, Laboratory Operations, Laboratory Pathology, Laboratory Testing, Management & Operations
Every medical laboratory ready to begin the move away from fee-for-service payment and towards value-based reimbursement needs to start offering lab tests that support the practice of precision medicine
Nearly every clinical laboratory and pathology group in America today is aware of the opportunity to provide medical laboratory tests that enable physicians to successfully practice precision medicine. The goal of precision medicine is to enable a patient to get a more accurate diagnosis, receive the most appropriate therapy, and have his/her condition monitored with unprecedented insight during the course of treatment.
The good news for the clinical laboratory industry concerning precision medicine is that it is the fastest-growing sector of lab testing and these are the tests that contribute the greatest value in patient care. For example, molecular and genetic tests are revolutionizing the diagnosis and treatment of infectious disease. These are the clinical lab tests that enable a physician to identify the specific subtype of the bacteria or virus, then help him or her select the therapeutic drug that will have maximum benefit for the patient.
Clinical Laboratories Support Cancer Diagnosis with Companion Diagnostic Tests
It is equally true that the diagnosis and treatment of cancer is undergoing a major transformation. Genetic knowledge is being used to develop both diagnostic tests and new therapies that enable physicians to better diagnose cancer, and then treat it with the drugs identified by a companion diagnostic test as having the best potential to cure the patient or slow the progression of the disease.
But if there is an area of precision medicine with immense potential, it is pharmacogenomics and its associated testing.
In 2015, the Kaiser Family Foundation reported that more than four billion prescriptions were filled in the United States. As science understands more about the human genome, proteome, metabolome, and microbiome (to name just a few of the “omes”), it becomes possible to design clinical laboratory tests that:
1. Contribute to a more accurate diagnosis;
2. Identify which prescription drugs will be of the greatest benefit; and
3. Inform the physician as to which drugs will not be effective and may even be harmful to the patient.
More Good News for Medical Laboratories
There is even more good news. Many clinical laboratories, hospital labs, and pathology groups already have lab instruments capable of performing the tests used in precision medicine. For these labs, no major up-front investment is needed to begin offering tests that allow physicians to practice precision medicine.
“Many of our lab clients got started in this way,” stated Don Rule, MBA, Founder and Chief Executive Officer of Translational Software in Bellevue, Wash. “They realized that their existing lab instruments could run some of the lab tests physicians use when practicing precision medicine. This would be a low-cost way to enter the precision medicine field and they could, on a small scale with minimal risk, begin offering these tests to gain experience, learn more about the market, and identify which such tests would have highest value to the physicians in the communities they serve.”
Is Your Pathology Group Interested in Supporting Precision Medicine?
“For a lab that is serious about understanding the current and future clinical demand for precision medicine tests, several careful steps are recommended,” he continued. “One step is to build demand by educating clinicians and their staffs about the best ways to use these tests to improve patient care. Keep in mind that more of a physician’s reimbursement is now keyed to the patient outcomes they deliver. These doctors recognize that labs helping them do a better job with precision medicine are also helping them demonstrate greater value in the patient care they provide.
“There are other steps required to launch an effective, clinically successful precision medicine testing program,” Rule noted. “For example, labs need to understand how to be paid by the health insurers in their region. That includes getting in-network and teaching physicians and lab staff how to follow each payer’s clinical and coding criteria so that clean claims will be paid in a timely manner.
“Another step is to build the market in a careful fashion,” he emphasized. “For example, labs should identify the thought leaders among their clients and work with them to demonstrate the clinical utility of tests performed in support of precision medicine. And above all, it’s important to focus on patients that are most likely to get some insight from testing. When your lab starts with the right population, it’s remarkable how often you will uncover actionable issues.”
Clinical Labs Can Enter Precision Medicine by Initially Referring Tests
“It’s also feasible for a lab to start its precision medicine strategy by referring out testing in the early stages and using third-party experts to do the interpretations,” Rule advised. “Then, as specimen volume increases, and the lab’s clinical team gains more experience with these molecular and genetic tests, it becomes easy to bring that testing in-house to develop the market further with faster turnaround times and in-house expertise that local physicians appreciate.”
Every clinical lab, hospital lab, and pathology group that is considering how to support precision medicine will want to participate in a special webinar, titled, “What Molecular and Genetic Testing Labs Need to Know to Succeed with Commercialization of Their Precision Medicine Products.” It will take place on Wednesday, March 22, 2017 at 1 PM EDT.
Two expert speakers will cover the essentials that all labs should know about building a market presence in precision medicine. First to present is Don Rule of Translational Software. Rule currently provides a variety of services to more than 80 lab clients, which includes the annotation and interpretation of gene sequences. In addition, Rule and his team provide consulting expertise to help labs develop their strategies for precision medicine, identify the best tests to offer physicians, and develop the steps needed to obtain network status with payers.
Webinar Will Present the Best Successes of Molecular, Genetic Testing Labs
Rule will share the experiences and best successes of the molecular and genetic testing labs he has worked with since 2009. He will discuss the types of lab tests used in precision medicine in different specialties, identify the fastest-growing sectors, and note which instruments already found in most clinical laboratories can be used to provide lab tests used for precision medicine.
Don Rule (above left), Founder and CEO of Translational Software, and Kyle Fetter (above right), Vice President of Advanced Diagnostics at XIFIN, will share their unique insights, knowledge, and experience at developing a precision medicine lab testing program for clinical laboratories that want to build more market share, make the billing/collections team more effective, and increase revenue. (Photo copyright: Dark Daily.)
As one example, a growing number of long-term care facilities are using tests to practice precision medicine—and paying for these tests under value-based arrangements—because so many of their patients are taking from 10 to 15 prescriptions each day. If a lab test indicates that the patient may not be getting therapeutic benefit from a specific drug (or that there are negative side effects from the polypharmacy), then the long-term care facility is money ahead because of less spending on drugs and the decreased care costs from patients who remain healthier. In the extreme case, the care facility might lose a patient to a skilled nursing facility due to mental fog or a fall that is precipitated by adverse drug effects.
Making the Case for a Precision Medicine Lab Testing Program
Additional topics to be discussed are:
• How to make the case to administration and the clinicians;
• How to build demand; and
• How to identify thought leaders and work with them to educate the physicians in the lab’s service region.
The second speaker will address the important topic of how to get paid. Kyle Fetter, MBA, is Vice President of Advanced Diagnostics at XIFIN, Inc., based in San Diego. XIFIN provides revenue cycle management (RCM) services to more than 200 labs and handles as many as 300 million lab test claims annually. What this means is that Fetter sees which labs are most successful with their coding, billing, and collections for molecular and genetic tests. He also sees how different payers are handling these claims.
During his presentation, Fetter will provide you and your lab team with valuable knowledge about the best ways to collect the information needed to submit clean claims and be paid promptly. He will illustrate ways to optimize the process of gathering this data and the different software tools that not only make the job easier, but help ensure that a higher proportion of claims are clean and paid at first submission.
Secrets of Preparing for Payer Challenges, Denials, and Audits
But the single best element of Fetter’s presentation will be how labs performing molecular and genetic testing should prepare, as part of the normal course of business, for the inevitable challenges, denials, and audits. He will describe the elements of a system that helps labs be ready to make the case that claims are properly documented, and that they represent appropriate and necessary tests for the patient.
You can find details for this important webinar at this link. (Or copy this URL and paste it into your browser: https://www.darkdaily.com/webinar/what-molecular-and-genetic-testing-labs-need-to-know-to-succeed-with-commercialization-of-their-precision-medicine-products.)
This webinar is perfect for any lab that is already performing molecular and genetic tests, and which is interested in building more market share, making the billing/collections team more effective, and increasing revenue.
For every lab watching the precision medicine space, this webinar is a “must attend” because it delivers to you and your lab team the collective knowledge and insights from two experts who are working with hundreds of the nation’s most successful labs. It is your guaranteed way to get the accurate, relevant information you need to craft your own lab’s strategy for expanding its molecular and genetic testing opportunities.
—Michael McBride
Related Information:
Genetic Tests and Precision Medicine Start to Win Acceptance by Some Payers; Pathologists and Clinical Laboratories Have Opportunity as Advisors
Sep 9, 2015 | Laboratory Instruments & Laboratory Equipment, Laboratory Management and Operations, Laboratory News, Laboratory Operations, Laboratory Pathology, Management & Operations
American Gut is using test results to create a microbiome database for use by researchers to better understand how microbes impact human health
Have you ever wondered what lurks in the dark corridors of your bowels? Now you can find out. Two entrepreneurial organizations—one a not-for-profit and the other a new clinical lab company—are charting new medical laboratory territory with the offer of an inexpensive poop test that reveals the type of microbes residing in your gut.
Where to Get Your Gut Microbes Analyzed
The not-for-profit organization American Gut, or British Gut in the United Kingdom (UK), which launched as crowd-funding projects on FundRazr, involve a private research project called the Human Food Project (HFP), which was initiated to compare the microbiomes of populations around the world. The Human Food Project is seeking a better understanding of modern disease by studying the coevolution of humans and their microbes.
People who pay American Gut’s $99 test fee (£75 for the UK project) receive a test kit to collect a stool sample to mail back for DNA sequencing. The test results will be provided to participants, but also benefit microbiome research. (more…)
Aug 26, 2015 | Coding, Billing, and Collections, Compliance, Legal, and Malpractice, Digital Pathology, Instruments & Equipment, Laboratory Management and Operations, Laboratory News, Laboratory Operations, Laboratory Pathology, Laboratory Sales and Marketing, Laboratory Testing, Management & Operations, News From Dark Daily
In provinces across Canada, health systems are dealing with limited budgets, growing populations, and the need to transition to personalized medicine
Medical laboratories in Canada have something in common with medical laboratories in most other developed nations. Demand for healthcare services exceeds capacity, even as the healthcare system struggles to find adequate funding. This puts pathology labs in a bind, since they are asked to test growing numbers of specimens even as budgets are flat or shrinking.
That means the biggest two challenges facing labs in Canada will be familiar to pathologists, clinical chemists and medical laboratory scientists in almost every other developed nation across the globe. One challenge is how to meet the steady annual increase in lab specimens that must be tested. The second challenge is how to do that additional testing even as government health systems are forced to trim budgets year after year. (more…)
