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Development of a Multiantigen Panel for Improved Detection of Borrelia burgdorferi Infection in Early Lyme Disease Immunoassays

We examined novel and established antigen markers to develop a multiplex panel that identifies early infection using the combined sensitivity of multiple markers while simultaneously maintaining high specificity by requiring positive results for two markers to designate a positive test. Ten markers were selected from our initial analysis of 62 B. burgdorferi surface proteins and synthetic peptides by assessing binding of IgG and IgM to each in a training set of Lyme disease patient samples and controls. In a validation set, this 10-antigen panel identified a higher proportion of early-Lyme-disease patients as positive at the baseline or posttreatment visit than two-tiered testing (87.5% and 67.5%, respectively; P
Source: Journal of Clinical Microbiology - Category: Microbiology Authors: Tags: Immunoassays Source Type: research

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Non-human primates currently serve as the best experimental model for Lyme disease due to their close genetic homology with humans and demonstration of all three phases of disease following infection with Borreliella (Borrelia) burgdorferi (Bb). We investigated the pathology associated with late disseminated Lyme disease (12 to 13 months following tick inoculation) in doxycycline-treated (28 days; 5mg/kg, oral, 2x/day) and untreated rhesus macaques (Rm). Minimal to moderate lymphoplasmacytic inflammation, with a predilection for perivascular spaces and collagenous tissues, was observed in multiple tissues including the cer...
Source: American Journal of Pathology - Category: Pathology Authors: Tags: Regular Article Source Type: research
Publication date: Available online 10 December 2017 Source:Ticks and Tick-borne Diseases Author(s): Christine B. Graham, Sarah E. Maes, Andrias Hojgaard, Amy C. Fleshman, Sarah W. Sheldon, Rebecca J. Eisen The incidence and geographic range of tick-borne illness associated with Ixodes scapularis and Ixodes pacificus have dramatically increased in recent decades. Anaplasmosis, babesiosis, and Borrelia spirochete infections, including Lyme borreliosis, account for tens of thousands of reported cases of tick-borne disease every year. Assays that reliably detect pathogens in ticks allow investigators and public health agencie...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Abstract Rapid diagnosis of Lyme borreliosis has been carried out on chemically modified porous polyethylene sinter bodies. Photografting of 2-propenol on sinter body's surface was performed as a first step, introducing active hydroxyl groups as a result of polyalcohol formation. The hydroxyl groups were used for further immobilization and could be linked via 3-aminopropyltriethoxysilane (APTES) to polysaccharides like mannan. Prone to coupling, mannan was activated using N, N'-disuccinimidyl carbonate (DSC) to allow smooth reaction with the primary amine groups of the silane layer. In a final preparation step, a ...
Source: Analytical Biochemistry - Category: Biochemistry Authors: Tags: Anal Biochem Source Type: research
The objective of the present study was to examine the interaction of skin fibroblasts withB. burgdorferi sensu stricto B31 (BB) andB. afzelii (BA) in vitro by electron microscopy. We also determined the expression of collagen type I, TGF- β, FGF-1, calreticulin (CALR), decorin (DCN), and PDGF-α at the mRNA level inBorrelia/fibroblast co-cultures. IntactBorrelia attach to and transmigrate fibroblasts, and undergo cystic transformation outside the fibroblasts. Fibroblasts preserve their vitality and express a prominent granular endoplasmic reticulum, suggesting activated protein synthesis. On two different semi-qu...
Source: Archives of Dermatological Research - Category: Dermatology Source Type: research
Lyme borreliosis (LB) is the most common reported tick-borne infection in Europe, and involves transmission of Borrelia by ticks. As long as a vaccine is not available and effective measures for controlling tick ...
Source: BMC Infectious Diseases - Category: Infectious Diseases Authors: Tags: Research article Source Type: research
​BY ANUMEHA SINGH, MD, &ANDREJ KIELTYKA, PASymptomatic bradycardia is usually reserved for the over-the-hill crowd, but it is not entirely unheard of in the young and healthy. A 21-year-old African American man was sent to the emergency department by his primary care provider. The patient had no previous medical issues, normal vital signs, and was fine until about a week prior. He had quickly worsening shortness of breath while climbing the stairs to get to his dorm bedroom. The young man denied having been out in the woods or noting tick bites. He had no family history of cardiomyopathy or early cardiac events.​Th...
Source: The Case Files - Category: Emergency Medicine Tags: Blog Posts Source Type: research
ConclusionsThere was a very high prevalence of D. immitis, hookworm and external parasites in Samoan dogs, and prophylactic medication is rarely administered. This is the first report confirming A. platys in Samoa and the South Pacific islands. The public health implications of poor management of the dogs should be considered and investigated further.
Source: Australian Veterinary Journal - Category: Veterinary Research Authors: Tags: SMALL ANIMALS Source Type: research
Publication date: Available online 22 November 2017 Source:Ticks and Tick-borne Diseases Author(s): Micah B. Hahn, Jenna K.H. Bjork, David F. Neitzel, Frances M. Dorr, Tessa Whitemarsh, Karen A. Boegler, Christine B. Graham, Tammi L. Johnson, Sarah E. Maes, Rebecca J. Eisen The distribution of I. scapularis, the tick vector of the bacteria that cause Lyme disease, has been expanding over the last two decades in the north-central United States in parallel with increasing incidence of human cases of Lyme disease in that region. However, assessments of residential risk for exposure to ticks are lacking from this region. Here...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
CONCLUSIONS: Lyme Neuroborreliosis accounts for a small proportion of paediatric stroke even in an endemic country. The strong predilection towards posterior cerebral circulation with clinical occurrence of brainstem signs associated with meningeal symptoms and CSF lymphocytosis are suggestive features that should rapidly point to the diagnosis. This can confirmed by appropriate serological testing in the serum and CSF. Clinicians must be aware of this rare neurological complication of Lyme disease that demands specific antibiotic treatment. PMID: 29208342 [PubMed - as supplied by publisher]
Source: European Journal of Paediatric Neurology - Category: Neurology Authors: Tags: Eur J Paediatr Neurol Source Type: research
In the present study, we sought to evaluate the feasibility of targeting vascular adhesion protein-1 (VAP-1) by positron emission tomography (PET) for the longitudinal quantitative assessment of Borrelia burgdorf...
Source: Arthritis Research and Therapy - Category: Rheumatology Authors: Tags: Research article Source Type: research
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