Pennsylvanians Urged to Protect Themselves Against Rising Tick-borne Diseases
http:// Approx. 8 Min
Pennsylvanians Urged to Protect Themselves Against Rising Tick-Borne Diseases
WGAL
March 16, 2022
http:// Approx. 8 Min
WGAL
March 16, 2022
https://www.lymedisease.org/auto-antibody-lyme-test-tufts/
March 23, 2022

By Julie Rafferty, Tufts University
For scientists and clinicians alike, one of the holy grails for successfully treating and curing Lyme disease is developing tests that identify the disease sooner, show when people are cured of infection, and can diagnose reinfection.
Now, researchers at Tufts University School of Medicine say they have identified just such a testing mechanism. It detects a type of antibody that infected individuals produce against a substance the Lyme bacteria acquires from the host in order to grow.
The researchers believe tests to detect these autoantibodies – antibodies that mistakenly target and react with a person’s own tissues or organs – could provide clinicians with a way to diagnose the disease sooner, know whether treatment with antibiotics is working, and identify patients who have been reinfected.
Authors of the study, published today by the Journal of Clinical Investigation, are Peter Gwynne, Luke Clendenen, and Linden Hu of the school’s Department of Molecular Biology and Microbiology, and colleagues at the National Institute of Allergy and Infectious Diseases at the National Institutes of Health (NIH).
Lyme disease, which was identified five decades ago along the Connecticut coast and spread across New England and the mid-Atlantic region, affects almost 500,000 people in the U.S. every year. Caused by a bite from an infected tick, it frequently goes undetected unless a person notices the telltale rash that forms around the bite.
Lyme disease can lead to debilitating long-term complications including arthritis, fatigue, mental impairment, and in the most severe cases, attacks on the heart and brain tissue.
Caused by the bacterium Borrelia burgdorferi, Lyme disease can often be treated with antibiotics. But in 10 to 20 percent of cases, the disease’s effects can persist.
Testing to detect Lyme disease exists, but it has limitations, says Gwynne, the lead author of the study and research scientist at Tufts School of Medicine who received a Tufts Launchpad Accelerator award for his work on Lyme disease.
“Traditional Lyme tests can stay positive for prolonged periods of time after treatment – years or even a lifetime,” he says.
“As a result, for some individuals suffering from symptoms that resemble long-term Lyme disease infection, clinicians are never sure whether the patient has persistent Lyme disease, was cured and then reinfected, or was cured and is suffering from something else.”
“We started this current work to learn how Borrelia burgdorferi acquires key nutrients, like fats, for growth,” says Gwynne. “The Lyme bacteria, despite being a very successful pathogen, is much more dependent than other bacteria on acquiring nutrients from its environment.”
“In the process of our research, we found that the organism takes fats called phospholipids directly from its surroundings in the host, and puts them on its surface,” says Hu, the Vice Dean of Research at the school and Paul and Elaine Chervinsky Professor of Immunology.
“That finding led us to look to see if the direct use of a host fat by the bacteria might lead the immune system to recognize it as a foreign substance and create antibodies to it.”
What the scientists discovered is that both animals and patients infected with the Lyme bacterium developed autoantibodies to multiple phospholipids. Because autoantibodies can be damaging to the host, these autoantibodies are tightly regulated and tend to disappear quickly once the stimulating factor is removed.
“The antibodies also seem to develop much more quickly than traditional antibodies to the Lyme bacteria—likely because your body has previously created these autoantibodies and downregulated them,” says Hu.
While current testing makes it difficult to diagnose reinfection or successful treatment, “the anti-phospholipid autoantibodies—because of their quick increase and quick resolution with treatment—can fill these gaps as a novel additional test,” Gwynne says. “They may make it possible to tell whether treatment has eradicated the Lyme disease bacteria. And they therefore also make it possible to tell if a patient with a prior infection now has a new infection.”
Gwynne and Hu have a provisional patent pending describing the use of antiphospholipid antibodies in the diagnosis of Lyme disease. Their hope is that if their discovery is borne out by further research, a diagnostic company could begin development of a commercially available version of their test within a couple of years.
A bigger question, which was not examined in the current paper, is whether these autoantibodies may identify a subset of patients who will develop persistent symptoms of Lyme disease after treatment.
Up to 20 percent of patients can develop persistent symptoms after Lyme disease. Diagnosis of these patients is currently only by clinical symptoms, making it likely that patients with different causes of their symptoms are grouped together. And treatment trials in patients with persistent Lyme disease are unlikely to show benefit if that occurs.
“Anti-phospholipid antibodies are commonly seen in autoimmune diseases like lupus, and are associated with blood clots and persistent inflammation that causes other disease conditions,” says Hu. “Many of the persistent symptoms in patients who continue to have symptoms after being diagnosed with Lyme disease are similar to those autoimmune diseases.”
“If there ends up being a link between having persistent Lyme symptoms and these autoantibodies, this would be the first test that could be used to distinguish a group of patients who have persistent Lyme disease,” he says. “It would allow us to test specific new therapies targeted to a defined mechanism.”
SOURCE OF PRESS RELEASE: Tufts University
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**Comment**
A few points:
It’s imperative to understand this important backstory to understand where this current study is headed and the inherent bias. They are careful to bait patients into thinking this research is beneficial by mentioning things like “chronic infection”, the importance of early diagnosis, and identifying reinfection, but never ONCE do they admit the possibility of chronic, persistent, infection.
This, right here, is why Lyme/MSIDS has remained and continues to remain in a quagmire. Until this issue is dealt with utilizing unbiased studies, most probably from independent researchers without patents and ties to the government, we will never move forward with proper scientific information. It will all continue to be based upon a faulty paradigm which hasn’t shifted in over 40 years.
http://uknow.uky.edu/research/uk-study-explore-why-lyme-disease-symptoms-persist-some
LEXINGTON, Ky. (March 4, 2022) — Although most cases of Lyme disease can be cured with a two-to-four-week course of antibiotics, some patients still experience lingering, debilitating effects of the disease months after they finish treatment.
Researchers in the University of Kentucky’s College of Medicine are seeking to understand if the antibiotic regimen used to treat Lyme disease could also be contributing to Post-Treatment Lyme Disease Syndrome (PTLDS), which includes ongoing symptoms of pain, fatigue or difficulty thinking.
Antibiotics can cause imbalances to the gut microbiome, the trillions of microbes essential to health and immune system function. Known as dysbiosis, these disruptions are linked to various autoimmune and inflammatory diseases, as well as cardiovascular disease and depression.
The study, supported by the Global Lyme Alliance and co-led by Ilhem Messaoudi, Ph.D., and Brian Stevenson, Ph.D., in the Department of Microbiology, Immunology and Molecular Genetics, will be the first to assess the role of dysbiosis in the development of PTLDS.
Lyme disease is a tick-borne illness caused by the bacteria Borrelia burgdorferi. The Centers for Disease Control and Prevention estimates that 476,000 Americans are diagnosed with Lyme disease each year.
The research will provide new insights into the interaction between B. burgdorferi infection, antibiotics, and the gut microbiome that may lead to more effective ways to treat Lyme disease, says Messaoudi.
“Lyme disease can be just an acute episode, but for some people, it becomes a prolonged disease with a lot of complications and scientists don’t fully understand where these complications come from,” Messaoudi said. “This study may provide targets that could lead to the development of new antibiotic treatment plans that address the microbiome as well as the immune system.”
Messaoudi and Stevenson will be collaborating with researchers at the Oregon National Primate Research Center to carry out an in-depth analysis of host responses. The research will also establish an ideal animal model for future studies on the cognitive and physical effects of PTLDS.
The University of Kentucky is increasingly the first choice for students, faculty and staff to pursue their passions and their professional goals. In the last two years, Forbes has named UK among the best employers for diversity, and INSIGHT into Diversity recognized us as a Diversity Champion four years running. UK is ranked among the top 30 campuses in the nation for LGBTQ* inclusion and safety. UK has been judged a “Great College to Work for” three years in a row, and UK is among only 22 universities in the country on Forbes’ list of “America’s Best Employers.” We are ranked among the top 10 percent of public institutions for research expenditures — a tangible symbol of our breadth and depth as a university focused on discovery that changes lives and communities. And our patients know and appreciate the fact that UK HealthCare has been named the state’s top hospital for five straight years. Accolades and honors are great. But they are more important for what they represent: the idea that creating a community of belonging and commitment to excellence is how we honor our mission to be not simply the University of Kentucky, but the University for Kentucky.
https://pubmed.ncbi.nlm.nih.gov/35291336/
Free PMC article
Abstract
Background: Lyme disease is a tick-borne multisystem infection. The most common cardiac manifestation is an acute presentation of Lyme carditis, which often manifests as conduction disorder and rarely as myocarditis.
Case summary: We report the case of a 37-year-old male with a history of microscopic polyangiitis (blood vessel inflammation or vasculitis) receiving immunosuppressive therapy. He was admitted for severe dyspnoea secondary to acute heart failure. Echocardiography and cardiac magnetic resonance imaging indicated a severely reduced left ventricular ejection fraction (LVEF) with global hypokinesia. Coronary heart disease was excluded, and endomyocardial biopsies (EMB) were performed. The left ventricular EMB revealed a rare case of fulminant Lyme carditis with evidence of typical lymphocytic myocarditis. Borrelia afzelii-DNA was detected without any relevant atrioventricular blockage or systemic signs of Lyme disease. The patient had no clinically apparent tick-borne infection or self-reported history of a tick bite. Immunological testing revealed a positive ELISA and Immunoblot for anti-Borrelia immunoglobulin G antibodies. After specific intravenous antibiotic therapy and optimized medical therapy for heart failure, the LVEF recovered, and the patient could be discharged in an improved condition. Repeat EMB a few months later revealed a dramatic regression of the cardiac inflammation and absence of Borrelia DNA in the myocardium.
Discussion: A severely reduced LVEF can be the primary manifestation of Lyme disease even without typical systemic findings and can have a favourable prognosis with antibiotic treatment. A thorough workup for Lyme carditis is required in patients with unexplained heart failure, particularly with EMB, especially in immunosuppressed patients.
For more:
https://www.futurity.org/borrelia-miyamotoi-new-england-ticks-2716322-2/
March 25th, 2022
Human blood samples from across New England show evidence of Borrelia miyamotoi, a relative of the bacteria that causes Lyme disease.
The findings add important new details to understanding the bacteria species, Borrelia miyamotoi, which was only recently found to infect humans. The tiny species is transmitted by the same deer ticks that carry the Lyme disease pathogen, and can cause meningoencephalitis and relapsing fevers.
“We thought that Borrelia miyamotoi, because it was so recently discovered, would have been more locally confined,” says Peter Krause, senior research scientist at the Yale School of Public Health and senior author of the study. “To our surprise, it was found at all our testing sites throughout New England.”
Krause and Durland Fish, professor emeritus of epidemiology (microbial diseases), were part of a team of researchers who first discovered Borrelia miyamotoi’s ability to infect humans in 2011. Graduate student researcher Demerise Johnston is first author of the new study in the journal Clinical Infectious Diseases.
By testing more than 1,100 blood samples gathered from states across New England in 2018, the team of researchers discovered that almost 3% of the study subjects showed evidence of an immune response (antibody) to Borrelia miyamotoi, with some collection sites demonstrating as much as 5%. These samples were so geographically dispersed in New England that the researchers were unable to determine whether the origin of the infection was southeastern New England, as is the case for Lyme disease and babesiosis, another tick-borne infection.
The proportion of samples containing Borrelia miyamotoi antibody was low compared to that of Lyme disease pathogen, which reached more than 15% in some areas. But Krause says the level of Borrelia miyamotoi antibodies found in the samples indicates that physicians should keep an eye out for the bacteria in patients who present with Lyme disease-like symptoms.
“We’re talking about the possibility of tens of thousands of New England residents becoming infected with Borrelia miyamotoi based on what we found,” he says. “I think it’s important for people to realize that this disease is out there.”
For the study, the researchers also looked into the prevalence of another microorganism, Babesia microti, in their samples. That species is the primary cause of human babesiosis, and it can be spread through ticks just like the other two. Their analysis suggested that around 10% of the samples showed evidence of antibodies against this pathogen. These infections can be transmitted at the same time and coinfection is possible.
“Still, Lyme predominates, but the gap is not as great as is assumed,” Krause says. “There’s more Babesia infections than people realize. Physicians working in areas where babesiosis occurs should be aware of the disease and test for it when patients have consistent symptoms.”
Borrelia miyamotoi disease is much less frequent than those for the microbial species that cause Lyme disease and babesiosis. Krause says there are dependable treatment strategies that can cure individuals who have Borrelia miyamotoi infection. Those strategies involve essentially the same antibiotic treatments that treat Lyme disease. He and his colleagues say in the study that tracking the geographic spread of the species could help health care workers be on alert for potential transmission through ticks and possibly through blood transfusions, although additional studies are needed to confirm that this could happen.
Coauthors are from the Laboratory of Emerging Pathogens at the US Food and Drug Administration and L2 Diagnostics in New Haven, Connecticut.
Source: Matt Kristofferson for Yale University