Serological detection of Tick-Borne Relapsing Fever in Texan domestic dogs

Esteve-Gasent MD, Snell CB, Adetunji SA, Piccione J.
/PLoS One/. 2017 Dec 12;12(12):e0189786. eCollection 2017.

https://doi.org/10.1371/journal.pone.0189786

Abstract

Tick-Borne Relapsing Fever (TBRF) is caused by spirochetes in the genus
/Borrelia/. Very limited information exists on the incidence of this
disease in humans and domestic dogs in the United States. The main
objective of this study is to evaluate exposure of dogs to /Borrelia
turicatae/, a causative agent of TBRF, in Texas.

To this end, 878 canine serum samples were submitted to Texas A&M
Veterinary Medical Diagnostic Laboratory from October 2011 to September
2012 for suspected tick-borne illnesses. The recombinant Borrelial
antigen glycerophosphodiester phosphodiesterase (GlpQ) was expressed,
purified, and used as a diagnostic antigen in both ELISA assays and
Immunoblot analysis. Unfortunately, due to significant background
reaction, the use of GlpQ as a diagnostic marker in the ELISA assay was
not effective in discriminating dogs exposed to /B/. /turicatae/.
Nevertheless, immunoblot assays showed that 17 out of 853 samples tested
were considered to be seropositive, which constitutes 1.99% of all Texas
samples tested in this study.

The majority of positive samples were from central and southern Texas.
Exposure to TBRF spirochetes may be seasonal, with 70.59% (12 out of 17)
of the cases detected between June and December. In addition, 2 out of
the 17 sero-reactive cases (11.76%) showed reactivity to both /B/.
/burgdorferi/ (causative agent of Lyme disease) and /B/. /turicatae/ (a
causative agent of TBRF).

This is the first report of TBRF sero-prevalence in companion animals in
an endemic area. Our findings further indicate that /B/. /turicatae/ is
maintained in domestic canids in Texas in regions where human disease
also occurs, suggesting that domestic dogs could serve as sentinels for
this disease.

______________

**Comment**

I predict much more to come.  Texan Lyme/MSIDS patients – we stand with you.

For a must-read important history about the South’s fight to be recognized as having tick borne illness:  https://madisonarealymesupportgroup.com/2017/10/06/remembering-dr-masters-the-rebel-for-lyme-patients-who-took-on-the-cdc-single-handedly/

People in the South are commonly denied treatment:  https://madisonarealymesupportgroup.com/2016/09/24/arkansas-kids-denied-lyme-treatment/

https://madisonarealymesupportgroup.com/2017/10/24/no-lyme-in-oklahoma-yeah-right/

And Texans have had enough of the denial and are taking action:  https://madisonarealymesupportgroup.com/2017/11/15/lyme-patients-file-lawsuit-against-idsa-and-insurers-over-treatment-denials/

“Remember the Alamo!”

https://madisonarealymesupportgroup.com/2017/03/09/remember-vicki-logan/

 

https://corporate.dukehealth.org/news-listing/lyme-study-uses-drug-discovery-methods-have-fueled-cancer-breakthroughs

Lyme Study Uses Drug Discovery Methods That Have Fueled Cancer Breakthroughs

Labs at Duke and other academic centers collaborate to identify alternatives to antibiotics

Published December 13, 2017 

Ticks can spread the bacterium that causes Lyme disease

DURHAM, N.C. – Antibiotics are currently the only treatments available for Lyme disease and other tick-borne illnesses, but researchers at Duke Health are working to expand the medical toolkit by identifying vulnerable areas of disease-causing bacteria that could lead to innovative therapies.

The research project, which recently received a $3.8 million grant from the Steven & Alexandra Cohen Foundation, relies on drug discovery methods that have proven successful in identifying treatments for cancer and viral diseases.

“Our goal is to find alternatives to antibiotics to treat Lyme disease, which is caused by the Borrelia burgdorferi bacterium, and illnesses that arise from the Bartonella pathogen,” said Neil Spector, M.D., the Sandra Coates Associate Professor Breast Cancer Research at Duke Cancer Institute and the study’s co-principal investigator.

“We’re hoping to move from isolating targets to identifying potential drugs to testing in animal models within three years – so a very aggressive timeline,” said Spector, who was a Lyme patient himself and nearly died from complications of disease. “Our goal is to identify drugs that will target the Achilles’ heel of these pathogens while sparing the normal gut microbiome.”

Spector and co-principal investigator Timothy Haystead, Ph.D., professor in the department of Pharmacology and Cancer Biology at Duke, are collaborating with scientists at Johns Hopkins School of Medicine and Tulane Medical Center to perform distinct functions of the study.

The Duke team will use technology Haystead’s lab has pioneered for cancer drug discovery, which will identify protein targets for the development of a completely new class of molecularly targeted therapies for Borrelia burgdorferi and Bartonella.

The team at Duke will then screen thousands of new compounds to identify those that target the desired proteins. The new compounds identified at Duke will then be tested at Johns Hopkins in a high-throughput assay to evaluate their effects on the viability of Borrelia burgdorferi and Bartonella.

The most promising drug candidates will then be sent to Tulane, where researchers will determine their efficacy in animal models of Bartonella illnesses and Lyme diseases, including in primates.

The Spector and Haystead labs have already identified more than 20 bacterial proteins that represent attractive targets for drug development. The protein targets are selected in part for their specificity to Borrelia burgdorferi, which would reduce the risk of adverse side effects such as the destruction of normal, healthy gut flora.

Duke researchers have begun screening a library of thousands of compounds looking for potential drugs that target a specific Borrelia burgdorferi protein that plays a key role in promoting the survival of the bacteria.

The research project represents a new exploration for Spector, a leading cancer researcher who was instrumental in the development of lapatinib, the first oral inhibitor of the HER2/neu cancer promoting protein approved by the FDA for the treatment of a subset of breast cancers. Spector’s interest in Lyme disease research stems from his personal experience with the infection, which he battled for years without a clear diagnosis. After suffering near-fatal heart failure, he underwent a heart transplant in 2009.

Spector said many features of cancer are also true of Lyme. For example, how and where tumors spread is not random. Similarly, Lyme affects different people in different ways, and Spector asserts that there are likely biological factors at play.

“I think there’s a way to capitalize on the lessons we’ve learned in cancer biology and basic research over the past 20 years and apply them to Lyme research,” Spector said. “We don’t have to reinvent the wheel.”

Contact

______________

 

 

https://www.huffingtonpost.com/entry/tick-borne-disease-working-group-day-2-strong-words_us_5a3109a9e4b04bd8793e95c2  by David Michael Conner 12/13/17

Tick Borne Disease Working Group Day 2: Strong Words, Many Lingering Questions for Lyme Patient

Tuesday was the second of the first two-day meeting of the HHS Federal Tick Borne Disease Working Group.

In sum, Monday was largely ceremonial. It began with the non-federal employee members of the Working Group taking the stage to take an oath of office generally reserved for federal employees, including the President of the United States, members of U.S. Congress and the military; all members of the working group placed their hands on Bibles and swore to uphold and defend the Constitution of the United States. (It might have been reassuring for some in the patient community if the members had also had to pledge under oath to protect and defend both the public health and personal rights to wellness, given that this Working Group was developed in great part to resolve conflicts that at least half the members feel are contributing to the ongoing and otherwise treatable illnesses of many American people.)

Members then took their seats for introductions, followed by two expert presentations. First up was Greg Skall, an attorney representing the National Capital Area Lyme Disease Association—colloquially known as NatCapLyme—who detailed how ineffective policies and selective enforcement of medical guidelines harm tickborne disease patients. After Skall, LymeDisease.org’s Lorraine Johnson presented on her organization’s effort to fill in gaps created by a lack of federal or private medical investigation into Lyme disease patients’ experiences, in an effort to determine through patients’ self-reporting what is otherwise falling through the cracks.

While the first day was short, from 12:30 until 4:00, it offered two expert panels and opportunities for members of the public who had pre-identified to speak their minds for up to three minutes each.

My overview of the first day, focusing on public comments, is available here: https://www.huffingtonpost.com/entry/hivaids-legacy-omnipresent-at-first-ever-tick-borne_us_5a2faf1ce4b0bad787126fd6

Day two—yesterday, Tuesday, December 13—was nearly a full day, beginning at 9:00 a.m and ending at 4:00 p.m. It opened with more expert presentations, followed by more public comments, followed by further overviews about rules of procedure and expected outcomes, followed finally by afternoon deliberations of the working group.

Patient Focus

Importantly, Working Group Vice Chair Kristen Honey asserted multiple times on days one and two that patient voices not only would be heard by the working group, but that for the sake of this working group, patient voices and patient experiences will be factored in with equal weight to any expert contributions.

As context, a major complaint of patients who are ultimately diagnosed with Lyme disease is that many doctors and other officials and authorities initially express great concerns about patients’ symptoms when they suspect, for example, that the patient may have developed multiple sclerosis, Parkinson’s disease, Alzheimer’s, rheumatoid arthritis or another disease for which Lyme is frequently misdiagnosed. After testing and ruling out all such diseases, patients are disturbed to discover that, failing to be able to determine what is wrong with their patients, many doctors conclude that nothing is wrong with their patients—at least physiologically. In far too many cases, patients are rejected by doctors who suggest that the patients are either pretending to be ill, or that their symptoms are simply manifestations of anxiety, depression, or another mental illness. (This was the conclusion of the first neurologist I saw, who suspected multiple sclerosis and then told me after MRIs and EMGs came back normal that “I’d be surprised if all your problems didn’t go away after a nice, long beach vacation…if not, find yourself a good therapist.”)

Avril Lavigne on Good Morning America in 2015: “I was seeing every specialist and, like, literally the top doctors. And they were just, like…it’s so stupid, they would pull up their computers and say, chronic fatigue syndrome. ‘Just try to play the piano,’ and it’s just, like, ‘Are you depressed?’ This is what they do to a lot of people that have Lyme disease. They don’t have an answer for them, so they tell them…they tell them, ‘You’re crazy.’”

So it’s heartening as a patient to hear the vice chair of the Working Group repeatedly emphasize that patient experiences—which are in general terms symptomatically consistent in most cases—will not be rejected because doctors, researchers and federal policymakers prefer to work from diagnostic laboratory data.

As the Working Group began its work—first, to develop a broad vision statement—Honey’s initial offering was “A national free of tick-borne disease where evidence-based outcomes return everyone to full wellness.” Immediately after the words were uttered, she suggested that “patient-focused” be added after “evidence-based,” and then later insisted that “patient-focused” be moved to come before “evidence-based” to emphasize the prioritization of patients. (The vision statement continued to be refined for some time—for those who have never had the arduous luxury of watching an advisory or governing body wordsmith, this was a grand opportunity to see how sausage is made in Washington and in board rooms throughout the country.)

One Criticism So Far

So far, the proceedings of the Working Group have been encouraging. At the same time, they have been largely demonstrative and foundation building rather than action oriented.

My one criticism thus far has to do with the design of the first couple of days. The Working Group was introduced as an opportunity to hash out many of the great debates and disagreements that surround Lyme disease—to get all parties on all sides together and to facilitate reasonable discussion based on all available evidence, including patient experiences.

Yesterday, two back-to-back presentations were a bit perplexing when taken together. In the first, a researcher essentially stated that Borrelia burgdorferi, the bacterium primarily associated with Lyme disease, has been proven in laboratory settings, in both human and non-human animals, to be able to persist in some circumstances through and following antibiotic treatment. Of all Lyme disease controversies, this is the polka-dotted, neon magenta elephant in the room. The next presenter, an official from the Infectious Diseases Society of America, spokes exclusively about the need to develop improved diagnostic tests and an effective vaccine for Lyme disease. He didn’t address persistence. This was a glaring omission, particularly from the IDSA, which denies that any legitimate evidence of potential persisting infection exists in human beings. By stacking these presentations—the first of which unequivocally stated something as undeniable fact, and the second of which ignored that statement while representing an organization that ignores the body of research on which the expert’s claim was made—the need to debate this of all issues within the Working Group was emphasized. And yet, there was no debate, no room and no time for debate.

I hope that that will change. If it doesn’t, then the Working Group is an entirely futile effort.

I realize that only days one and two of the Working Group have been convened so far, and it is too early to levy strong criticism—and so I am simply raising a red flag, or perhaps raising my hand as someone who has lived with Lyme probably since at least 1997, and as someone who has dedicated much of my life over the past three years to asking questions about Lyme and reading research. I’m raising my hand to ask, “Where’s the debate? When will that occur? And when it does, will these questions be asked—and conversations continued until satisfactory, thorough, and transparent answers are given?”

Questions that Should be Asked and Answered

  • I’ve asked many people one question, including representatives of the IDSA and including the CDC, which can only be asked at the organizational level, and which to date only answers in the vaguest and most general of terms, without nuance and often without acknowledging certain questions. That question is, Why do some scientists state conclusively that evidence of persisting Borrelia burgdorferi bacterial strains have been documented both in vitro and in vivo, including in human beings, and other scientists including officials who represent the IDSA and the CDC say that “no good evidence of persisting infection exists”? This question is at the heart of everything—the scientific debate, the persecution of medical doctors who treat chronic Lyme patients, and the inhumane attacks on Lyme disease patients themselves whose bodies stubbornly do not revert to wellness because they are told that the national infectious disease society and the federal agencies that defer to them say that ongoing infection is impossible, and ongoing, even deteriorating health problems are unlikely, or likely due to mental illness. (This opinion has made its way to mainstream news coverage through health editors, including one from the Washington Post who, while serving as Slate’s health editor, posthumously un-diagnosed a woman’s Lyme disease and replaced that diagnosis with one of clinical depression, blamed the dead woman’s doctor for her death, and then suggested that chronic Lyme disease really is nothing more than “likely depression—which is treatable.” In other words, this opinion, and the stubborn refusal of officials to debate and further research the very nature of Lyme disease, has resulted in cruel mischaractertization of people with severe, debilitating illnesses that now occurs among all media types, including reality television, which now has convinced a major part of the population that Lyme disease is a “fake” illness. On top of that, this award-winning health editor framed Lyme disease in such a way as to make it appear as if it’s a manipulative talking point of the Republican party—which I have to say as a super-liberal gay man who has lived with this disease for decades…well, I can’t put the words that conjures into writing, not here. All of this mischaracterization is unconscionable. This Working Group must resolve this debate of stubborn silence.)
  • The Working Group yesterday developed subgroups, each of which will address a different specific aspect of Lyme disease. Both prevention and treatment were covered. The most-discussed aspect of yesterday’s deliberations involved whether Lyme vaccine development belongs with the prevention subgroup, its own subgroup, or whether it’s beyond the scope of the Working Group altogether. One member, a patient advocate, noted that she is not an anti-vaccine activist and that, in fact, she and her daughter just got up to date on all their vaccines. Here’s why she said that: Certain parties involved in the Lyme disease debate have falsely associated people with Lyme disease with the so-called anti-vaxxer movement. That is a red herring, but because the anti-vaccine movement is so polarizing, falsely suggesting that people who have Lyme disease and our advocates are somehow affiliated with people who reject all vaccines is a way to immediately turn tribally minded people against us; it’s no different than the health editor mentioned in the above point, who falsely suggested that people with Lyme are either so naive or so dumb as to be wooed to vote for a political candidate because he dared to acknowledge that people who suffer with Lyme disease have Lyme disease. It’s a shame that a member of the Working Group had to assert that she’s not an anti-vaxxer when suggesting that vaccines discussions may be so intensive as to be beyond the scope of the prevention subgroup. When vaccines are discussed, here is an important question that should be asked both for the sake of full transparency and to resolve questions that to date have been ignored: Do any parties who prioritize the development of vaccines and diagnostics stand to profit personally from the development of these products? This question is vitally important because a number of officials at the IDSA who prioritize vaccines and often do not even address the suffering of existing Lyme disease patients disclose in academic papers that they hold shares in major healthcare companies—including those that develop and market vaccines and diagnostic tests for profit—and should a vaccine be developed and become federally mandated, then those individuals’ judgment potentially may be compromised by an eventual financial payoff from profits of such products becoming mandated by federal policy or federal recommendation, or by local school boards. None of this suggests that a vaccine would do harm, or serves as any judgment of the efficacy of a potential vaccine; rather, it asks questions about the motivation for an exclusive focus on advocating on behalf of a vaccine while ignoring the ongoing extraordinary suffering of countless Lyme disease patients.
  • The Lyme disease patient community has been extremely critical of the CDC, whose mission is disease control and disease prevention. Spraying for ticks, development of a vaccine, and so on fall under the control and prevention mandate of the CDC. Criticisms of the CDC have stemmed from the CDC’s historic endorsement of the IDSA Lyme disease guidelines developed in 2006. On December 1, the CDC removed links and explicit references to the IDSA Lyme guidelines from its website, explaining to me via email that it did so because it determined the guidelines to be outdated. The CDC made this decision to remove links to the guidelines nearly two years after another HHS agency, which operates the National Guidelines Clearinghouse, removed the IDSA guidelines for the same reason. It should be noted, too, that federal regulations require that guidelines be reviewed against current evidence at least every five years—and so they were supported by the NGC for a full five years after their expiration date and nearly seven years after their expiration date by the CDC. As someone whose job involves asking questions, I’ve been frustrated by CDC’s responses—I’m glad they respond, but the responses are so political as to rarely answer the actual questions I asked. Why would the CDC continue to endorse guidelines for almost seven years after they are determined by federal regulation to be no longer fit for public use? And why, when the NGC accepted guidelines from the International Lyme and Associated Diseases Society (ILADS) two years ago, does the CDC not even acknowledge the existence of those guidelines to this day, instead removing the IDSA guidelines but recommending a literature review co-authored by some of the IDSA co-authors that ultimately supports and refers readers to the IDSA Lyme disease guidelines? Without transparency and a sound explanation, all of this conveys an almost irrefutable appearance of the CDC—a federal public health agency—favoring one professional medical association over another. And so, if the Working Group is to make any real progress in this conversation, the working group then must make an effort to solicit and must procure fully transparent, full, sound explanations for the federal government’s decision.
  • At the same time, the historic focus of the Lyme community on the CDC has been a distraction from making progress on research. It’s understandable how this happened: The CDC’s apparent bias toward IDSA guidelines, which prohibit treatment with antibiotics for longer than 28 days (for Lyme—this is not the case for a variety of other diseases), has had the effect of influencing medical boards to persecute medical doctors who treat Lyme patients, often with great success, for longer than 28 days, whereas patients fail without this treatment. Here’s how that works: When the CDC recommends medical practice guidelines, medical boards often interpret the CDC’s recommendations as a kind of regulation, or law. In reality—and this was even pointed out to me by a representative of the CDC recently—medical guidelines are guides, not laws, even when endorsed by a federal agency. In many cases, doctors follow guidelines rather loosely, using them as a…well, as a guide, but practicing the art of medicine, and looking to the patient’s self-reported health and to labs to determine whether treatment is succeeding or failing. In the case of Lyme disease, the guidelines somehow have been interpreted as absolute law and followed rigidly. Lyme disease specialists have told me over the years that they have been “harassed” by the CDC when they stray from the guidelines, and that they are either threatened with investigation or investigated by medical boards, which are told by the CDC (or by medical insurers) that board-certified doctors are straying from the federally supported guidelines and therefore may be malpracticing and harming patients. Lyme specialists know that they are at a relatively high risk of having their licenses to practice suspended or revoked as a result. And so here we have a complication that needs to be resolved. Since a CDC employee posed the question to me, I will redirect the question to the Working Group: Why are CDC-endorsed practice recommendations for Lyme disease used to persecute medical doctors who stray from them when this supposedly is not common in the practice of other diseases? Addressing this may involve looking beyond the CDC at medical boards themselves, and assessing what experiences they have with allegedly being encouraged by the CDC and by health insurers to investigate and punish medical doctors who treat Lyme disease patients according to ILADS guidelines instead of IDSA guidelines.
  • And finally, beyond the CDC, perhaps my greatest frustration is why seemingly no one looks to the NIH when identifying the federal government’s effects on the Lyme epidemic. The National Institutes of Health funds and mandates medical research—CDC does not do that. Since Lyme disease is so prevalent—actually one of the most prevalent infectious diseases in the country—and since patients report such extraordinarily dire effects from untreated or improperly treated Lyme, resulting in a high suicide rate among Lyme patients who can no longer life with their suffering, the paltry $25 million NIH investment in Lyme disease research is truly baffling. By comparison, NIH for years has invested an average of $3 billion in HIV research, with fewer than 40,000 new HIV infections occurring per year, compared with over 300,000 Lyme disease infections. Why has the NIH been so lax in allocating funds to research Lyme disease? What has influenced NIH officials to ignore the pleas for help by so many national, regional and local advocacy groups? How can the Working Group influence an adequate and equitable investment in research for Lyme and other tickborne diseases—an investment of at least a billion dollars. (For comparison’s sake, President Obama in 2016 requested $1.8 billion in emergency funding for the Zika virus because of its potential to become an epidemic, and Congress awarded $1 billion in funds. Lyme disease has been an epidemic for years, but NIH still funds it at the level of a “rare disease.”)

Just some thoughts.

I am encouraged by the spirit presented by the Tick Born Disease Working Group. I’m less convinced at this point of its potential for making real change—but I’m less convinced because so far the groundwork has only begun to be laid down.

I will be watching and listening for actual debate to take place, for ironing out rather than talking around the crucial questions that continue to make Lyme disease such a bizarrely marginalized and ignored illness even as infection rates and tick habitats aggressively broaden.

And then I’ll be looking for some of these issues to be settled, or at least for conclusions to be drawn, followed by sound, actionable recommendation to be made by the Working Group to the federal government. And then whether the federal government is obligated to or interested in heeding the recommendations of an advisory board with no governing power is another question altogether, likely to be vulnerable to influences behind closed doors, such as the interests of lobbyists from pharmaceutical and healthcare companies, national medical associations, and others.

Oprah Winfery made a saying by Maya Angelou famous. That saying, according to Winfrey, is “When you know better, you do better.”

That sounds great. It doesn’t appear to be what Angelou actually said, however. This is:

“When you know better, you do better” is an affirmation that assumes people act according to basic decency.  The past year’s politics—broadly speaking, not specifically relating to Lyme—really haven’t illustrated that.

Maya Angelou was brilliant, and she was not so naive as to assert that people automatically do better once they have certain information.

I think it’s important to realize now that Angelou’s words are a challenge against temptation not to do the decent thing once we realize that what we’ve been doing has been causing harm.

I really, really hope that not only the members of the Working Group, but those in the government who receive their report, will live up to the challenge.

__________

Glad there are patients well enough to watch-dog the working group.  Great questions and expectations are presented here.  In response to last year’s politics not illustrating decency, we must move past polarization and look at each other as humans – not political parties.  Connor’s comment about anti-vaxxers was also telling – whenever a controversial issue is presented and people are allowed to engage in bullying, name calling, and shouting down a viewpoint, society has hit a new low and needs to reset.  We also need to recognize a person’s right to informed consent and decision making when it concerns their own body.  This is a paramount issue that also deserves debate and a straight answer.

The end never justifies the means.   

 

https://www.news-medical.net/news/20171214/Study-Living-Lyme-disease-bacteria-found-months-after-antibiotic-treatment.aspx

Study: Living Lyme disease bacteria found months after antibiotic treatment

Bay Area Lyme Foundation, a leading sponsor of Lyme disease research in the US, today announced results of two papers published in the peer-reviewed journals PLOS ONE http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0189071 and American Journal of Pathology, that seem to support claims of lingering symptoms reported by many patients who have already received antibiotic treatment for the disease.

Based on a single, extensive study of Lyme disease designed by Tulane University researchers, the study employed multiple methods to evaluate the presence of Borrelia burgdorferi spirochetes, the bacteria that cause Lyme disease, before and after antibiotic treatment in primates. The study also measured the antibody immune response to the bacteria both pre- and post- treatment, as this is how current diagnostics typically evaluate Lyme disease in humans.

The data show that living B. burgdorferi spirochetes were found in ticks that fed upon the primates and in multiple organs after treatment with 28 days of oral doxycycline. The results also indicated that the immune response to the bacteria varied widely in both treated and untreated subjects.

“It is apparent from these data that B. burgdorferi bacteria, which have had time to adapt to their host, have the ability to escape immune recognition, tolerate the antibiotic doxycycline and invade vital organs such as the brain and heart,” said lead author Monica Embers, PhD, assistant professor of microbiology and immunology at Tulane University School of Medicine.

“In this study, we were able to observe the existence of microscopic disease and low numbers of bacteria, which would be difficult to ‘see’ in humans but could possibly be the cause of the variable and nonspecific symptoms that are characteristic of post-treatment Lyme disease syndrome. Although current antibiotic regimens may cure most patients who are treated early, if the infection is allowed to progress, the 28-day treatment may be insufficient, based on these findings,” Embers said.

The findings also demonstrated:

  • All subjects treated with antibiotics were found to have some level of infection 7 – 12 months post treatment.
  • Despite testing negative by antibody tests for Lyme disease, two of 10 subjects were still infected with Lyme bacteria in heart and bladder.
  • Lyme bacteria which persist are still viable.

To better elucidate previous animal studies demonstrating that some B. burgdorferi bacteria survive antibiotics, the study explored Lyme disease infection in rhesus macaque primates treated with antibiotics and a control group who were also infected but not treated. This species has been shown to demonstrate a progression of Lyme disease most similar to humans, particularly related to erythema migrans, carditis, arthritis, and neuropathy of the peripheral and central nervous systems.

“Clearly, some medical practices governing diagnosis and treatment of Lyme disease should be reconsidered in light of this study. This study shows that we must reevaluate the current paradigm of antibody response tests for diagnosis and move away from the one size fits all approach to Lyme treatment,” said

In the study, ticks carrying B. burgdorferi spirochetes fed on ten primates. Four months post infection, half of the primates (five) received the antibiotic doxycycline orally for 28 days at a proportional dose to that used in human treatment. Five subjects were treated with placebo and all ten were evaluated by more than five different diagnostic methods to characterize any remaining infection. The researchers used several important techniques, including xenodiagnoses, to determine if the spirochete bacteria persisted.

The results show:

  • Few subjects displayed a rash. Although all subjects were infected, only one of the 10 displayed a rash with central clearing, the classical “bulls-eye” rash. The subject that developed this rash, interestingly, never mounted an immune response to five borrelia antigens throughout the study period, prior to and following treatment.
  • Organs may be infected even if antibody tests are negative. One subject which tested negative for B. burgdorferi by skin biopsy cultures, PCR and in vivo cultures, was found to have B. burgdorferi infecting the heart. Another untreated subject, who was ultimately shown to have residual Lyme bacteria in the bladder, showed a decrease in immune response over the course of infection, with a negative xenodiagnosis test in the late stage, which would signal that the animal self-cured.
  • Intact spirochetes were found in three of five treated and four of five untreated subjects based on xenodiagnosis results 12 months after the tick bite.
  • Immune responses to B. burgdorferi varied greatly post-treatment, with one subject’s antibody levels dropping to pre-bite levels for three antigens while another subject experienced elevated antibodies for the same antigens throughout the study period. This is significant because it demonstrates that subjects infected with the same strain of B. burgdorferi may have different immune responses to the same antigen. And, because humans, like primates, are genetically diverse, it underscores that testing antibody responses may be inherently unreliable as a singular diagnostic modality for Lyme disease.
  • Widespread and variable microscopic disease was observed in all infected subjects, despite antibiotic treatment. Compared to uninfected subjects of the same age, infected subjects in this study (treated and untreated) demonstrated Inflammation in and around the heart, in skeletal muscles, joints, and the protective sheath that covers the brain, and near peripheral nerves.
  • Rare, but intact B. burgdorferi spirochetes were found in the tissues of both the treated and untreated subjects. In two subjects treated with doxycycline, multiple Lyme bacteria were observed in the brain tissue. Others organs in which the spirochetes were observed included the heart, joints, bladder, skeletal muscle and adjacent to peripheral nerves.
    Source:
    http://tulane.edu/

_____________

For more:  https://madisonarealymesupportgroup.com/2017/11/03/lyme-bug-stronger-than-antibiotics-in-animals-and-test-tubes-now-study-people/

https://madisonarealymesupportgroup.com/2015/09/19/proof-of-borrelia-persistence/

https://madisonarealymesupportgroup.com/2017/08/18/drexel-prof-lyme-persists/

https://madisonarealymesupportgroup.com/2017/12/02/scottish-doctor-gives-insight-on-lyme-msids/   “If you look at major medical microbiology and infectious disease textbooks, they state that after 4 weeks you can’t find the Lyme bacteria anymore. Therefore Lyme is then categorised as ‘post infectious’. But I get back to the point I’ve made before: if you can’t culture it, you cannot know anything about its viability. You do not have a organism specific test (culture or PCR), that guides your ‘test of cure’. How do you say that a bacteria is killed, when you couldn’t grow and measure it in the first place?”  “One of the rules of infectious diseases medicine is that once you stop treatment and the patient stays better, they are cured. When they get worse, the infection has returned and they have relapse of infection and need repeat treatment. My ID colleagues live by that rule with most other infections, but not with Lyme.”

 

 

 

https://globallymealliance.org/press-releases/gla-expands-research-program-announcement-inaugural-postdoctoral-fellowships/

FIVE POSTDOCTORAL SCIENTISTS WILL FOCUS ON CHRONIC LYME

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GREENWICH, Conn (Dec. 5, 2017)—Global Lyme Alliance (GLA), the leading 501(c)(3) dedicated to conquering Lyme and other tick-borne diseases through research, education and awareness, today announced the awarding of its first-ever fellowships to five young postdoctoral scientists whose work focuses on Post-Treatment Lyme Disease Syndrome (PTLDS) or chronic Lyme.

The three-year fellowships, made possible with the support of Deborah and Mark Blackman, will support five recent Ph.D. graduates with specific interest in understanding whether persistence of the bacteria Borrelia burgdorferi, the Lyme disease pathogen, or host evasion mechanisms are responsible for the continued symptoms experienced by patients treated for Lyme disease.

“The new fellows are hard-working and brilliant young scientists with fresh ideas who will tackle the mechanistic underpinnings of PTLDS,” said Mayla Hsu, Ph.D., GLA’s director of research and grants. “We’re delighted to be able to support these researchers at the beginning of their careers.”

The five are:

  • George Aranjuez, Ph.D., University of Central Florida, is studying the molecular mechanisms that Borrelia uses to survive during mammalian infection and how it evades the immune system.
  • Ashley Groshong, Ph.D., University of Connecticut, is examining the link between Borrelia protein metabolism and its ability to form persister cells thus evading antibiotic assault.
  • Matthew Muramatsu, Ph.D., University of Texas-Southwestern, is exploring how the genetics of persister Borrelia differ from that of replicating bacteria. His work will focus on how the transcription signals that start the persister pathway are regulated.
  • Bijaya Sharma, Ph.D., Tufts University, is studying whether immune deficiency is related to continued symptoms in Borrelia-infected mice. Her work explores the genetic factors in Borrelia that underlie bacterial persistence.
  • Xuran Zhuang, Ph.D., University of Maryland, will use tick microinjection to study the growth of persister bacteria and its genetic pathways in samples she recovers from patients.

The “Blackman-GLA Postdoctoral Fellowships” will total $1,125,000. Each fellow will receive $75,000 per year, for each of the three years, including travel expenses to Lyme disease conferences and an invitation to GLA’s annual closed-door scientific symposium, where they will participate in scientific discussions, present their findings and meet with program donors Deborah and Mark Blackman.

All applicants were required to submit a detailed scientific proposal for expert review. Annual reports on progress of project milestones will be required before second and final installments will be awarded.

“Supporting young researchers at the beginning of their careers shows the commitment of GLA and the Blackmans to nurture the development of a cadre of experts in the Lyme disease field,” said Scott Santarella, GLA’s CEO. “We also hope that the findings of these scientists will be potentially broadly applicable to other infectious diseases.”

In addition to the fellowships, GLA awards grants each year to researchers working on promising projects that best fulfill the organization’s goal to improve diagnostic testing and uncover more effective treatment protocols. Proposals received for the 2017-18 research grant cycle represented a broad range of interests ranging from tick ecology to co-infections, from new treatment approaches to basic biology of Borrelia infection in the mouse model, in both its acute and chronic stages. The 2017-18 grantees will be announced before the end of the year.

Global Lyme Alliance (GLA) is the leading 501(c)(3) dedicated to conquering Lyme disease through research, education and awareness. GLA has gained national prominence for funding the most urgent and promising research in the field, while expanding education and awareness programs for the general public and physicians. Learn more at GLA.org.