Lyme Science Blog

Lyme Science Blog

Lyme Science Blog

Could slowing down the swimming speed of the Lyme disease spirochete help treatment?

by Daniel J. Cameron, MD MPH The Lyme disease bacterium swims in an undulating pattern throughout the body. “The flagella reside within the periplasm, the space between the bacterial cell wall and the outer membrane,” according to Harman, from the Department of Molecular and Cellular Biology, University of Arizona. [1] “Rotation of the flagella within […]

Lyme Science Blog

What is it about the Nanotrap® test we know for Lyme disease that led to support by the Bill and Melinda Gates Foundation?

by Daniel J. Cameron, MD MPH Ceres Nanosciences is marketing the Nanotrap® as “a game changing tool for Lyme disease diagnosis.” The first-of-its-kind urine-based Lyme Antigen test “will provide the most sensitive detection of Lyme disease, at all stages of the disease. Unlike other clinical Lyme disease tests that are indirect, the Nanotrap® LA test […]

Lyme Science Blog

Doctors recognize Lyme disease in a patient with kidney disease

The article, “Chronic Lyme borreliosis associated with minimal change glomerular disease: a case report,” cites four published papers describing kidney damage in Lyme disease patients. The papers consisted of 4 cases of membranoproliferative glomerulonephritis (MPGN), a case of crescentic and IgA-deposit nephropathy, and a case of membranous nephropathy. [1] In another case, the authors describe […]

Lyme Science Blog

Risk of tick bites at outdoor events

by Daniel J. Cameron, MD MPH The event consisted of 2 days of long distance mountain racing through a tick-infested habitat in Scotland. “Teams of 2 runners each navigate mountainous terrain, carrying all their equipment for an overnight camp,” according to Hall from the University of Salford. [1] To encourage participation in the study, racers […]

Lyme Science Blog

“Fake news” charges do not give credit to the Lyme disease community

by Daniel J. Cameron, MD MPH Polly Murray’s children and neighbors suffered from Lyme disease rather than Juvenile Rheumatoid Arthritis. Alan Steere described a cluster of adolescents and adults with Lyme disease in Lyme Connecticut. William Burgdorfer discovered Borrelia burgdorferi in the midgut of the Ixodes scapularis tick. James Krause discovered Babesia microti in the […]

Lyme Science Blog

Don’t count on a relapsing fever to diagnose Borrelia miyamotoi

Despite having the genetic apparatus, B. miyamotoi typically does not manifest with a relapsing fever. “Although evidence of antigenic variation, which drives the relapsing course of other relapsing fevers due to borrelia has not been demonstrated clinically or in an animal system thus far for B. miyamotoi [2], it has been shown that this species […]

Lyme Science Blog

American traveler with Lyme disease

by Daniel J. Cameron, MD MPH Doctors in Bogotá, Colombia, describe an encounter with a 24-year-old American woman whom they eventually diagnosed with Lyme disease seven days after she arrived in the country from Virginia, USA. [1] The woman presented to a Bogotá emergency room with a “popular pruritic lesion in [the] right flank.” The […]

Lyme Science Blog

Borrelia miyamotoi disease can be added to list of traveler’s concerns

Doctors described a case of BMD in a previously healthy 63-year-old American man living in Japan. “He reported being bitten by ticks several times while staying with his family at his summer house in the state of Minnesota in the USA from July 25 to August 9, 2013,” according to Oda from the Division of Infectious […]

Lyme Science Blog

Questions linger on the efficacy of the Lyme disease vaccine

The OspA vaccine trial was 78% effective at preventing a culture confirmed erythema migrans rash. But the vaccine was only 48% effective at preventing what the authors referred to as “possible Lyme disease.” “Possible Lyme disease was defined as a flu-like illness (fever, chills, fatigue, headache, joint or muscle aches) with IgM or IgG Western blot […]

NEUROLOGIC LYME DISEASE PATIENTS
Lyme Science Blog

Ever wonder what is happening in the brain of neurologic Lyme disease patients who remain ill after treatment?

by Daniel J. Cameron, MD MPH The authors found 13% of patients with a spinal tap positive by both cerebrospinal fluid pleocytosis and Borrelia-specific antibodies remained ill for more than 3 months after treatment. Meanwhile, 33% of Lyme neuroborreliosis patients with Borrelia-specific antibodies detected in cerebrospinal fluid and 43% of Lyme neuroborreliosis patients with pleocytosis […]

Lyme Science Blog

Another Lyme Carditis Case

by Daniel J. Cameron, MD MPH “Three weeks after the vacation [in Cape Cod], he awoke in the night to use the bathroom. Thirty minutes later, he found himself on the bathroom floor, not recalling any premonitory symptoms for syncope. In the following weeks, he experienced a sharp decrement in exercise tolerance,” according to Patel […]

Lyme Science Blog

Borrelia burgdorferi activates human astrocytes cells in culture

by Daniel J. Cameron, MD MPH According to the authors, “If uncontrolled in the context of neuroborreliosis, the astrocyte response could lead to long-term injury in the CNS.” Researchers identified changes in gene expression within 48 hours of infecting cultured astrocytes with Borrelia burgdorferi (Bb). “Understanding how these changes are maintained over time will be […]

Lyme Science Blog

Questions to ask patients about Lyme disease

by Daniel J. Cameron, MD MPH A 51-year-old man in the United Kingdom was hospitalized with retrosternal, dull chest pain. He had a history of palpitations, dizziness, and sweating and a previous transient ischemic attack.[1] He presented with a heart rate of 180 with right bundle branch block, a superior QRS axis, and signs of […]

Lyme Science Blog

What if a pronounced TH17 cytokine response in Lyme arthritis were caused by a persistent infection?

by Daniel J. Cameron, MD MPH According to a 2017 study published in Clinical Infectious Disease, a pronounced TH17 cytokine response may be beneficial in the early stages of Lyme disease. “In these patients, the levels of inflammatory mediators, particularly TH17-associated cytokines, correlated directly with B. burgdorferi IgG antibodies (P<0.02), suggesting a beneficial role for […]

Lyme Science Blog

“Urban” ticks carry B. burgdorferi s.l. and B. miyamotoi

Questing ticks were collected from grassland, hedges, parks, woodland and woodland edges in Salisbury, an urban area located in Wiltshire, England. Ticks were identified at over 50% of the 25 sites surveyed. Furthermore, investigators reported that the collected ticks carried two pathogens posing a health risk to the public. The “DNA of Borrelia burgdorferi s.l. […]