Values of diagnostic tests for the various species of spirochetes.

Values of diagnostic tests for the various species of spirochetes. Med Mal Infect. 2019 Feb 11;: Authors: Eldin C, Jaulhac B, Mediannikov O, Arzouni JP, Raoult D Abstract Bacteria of the Borrelia burgdorferi sensu lato complex, responsible for Lyme disease, are members of the spirochetes phylum. Diagnostic difficulties of Lyme disease are partly due to the characteristics of spirochetes as their culture is tedious or even impossible for some of them. We performed a literature review to assess the value of the various diagnostic tests of spirochetes infections of medical interest such as Lyme borreliosis, relapsing fever borreliae, syphilis, and leptospirosis. We were able to draw similarities between these four infections. Real-time PCR now plays an important role in the direct diagnosis of these infections. However, direct diagnosis remains difficult because of a persistent lack of sensitivity. Serological testing is therefore crucial in the diagnostic process. All currently available diagnostic tools are imperfect, with a potential risk of false positive and false negative results depending on the clinical context. Physicians should always take into consideration the clinical and epidemiological context when Lyme disease, relapsing fever borreliae, syphilis, and leptospirosis are suspected. PMID: 30765286 [PubMed - as supplied by publisher]
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research

Related Links:

CONCLUSIONS: Immunization with native antigens might not be sufficient to obtain complete protection to infection. Nonetheless we showed that non-infectious B. burgdorferi can be an effective carrier to deliver and elicit a specific host response to T. pallidum antigens to assess the efficacy of syphilis vaccine candidates. PMID: 30797635 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
The study compares diagnostic parameters of different commercial serological kits based on three different antigen types and correlates test results with the status of the patient's Borrelia infection. In total, 8 IgM and 8 IgG kits were tested, as follows: enzyme-linked immunosorbent assay (ELISA) (Euroimmun) based on whole-cell antigen, 3 species-specific enzyme immunoassays (EIAs) (TestLine), Liaison chemiluminescence (DiaSorin), ELISA-Viditest (Vidia), EIA, and Blot-Line (TestLine) using recombinant antigens. All tests were performed on a panel of 90 samples from patients with clinically characterized borreliosis (53 w...
Source: Journal of Clinical Microbiology - Category: Microbiology Authors: Tags: Immunoassays Source Type: research
Conclusions:By education and restricted use initiatives, inappropriate CSF Lyme PCR testing for diagnosing neuroborreliosis was significantly affected. This initiative led to reduced healthcare costs for the institution and patient while improving evidence based medical practices.Disclosure: Dr. Vanino has nothing to disclose. Dr. Baldwin has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Infectious Disease: HIV, Syphilis, Borrelia, TB, Cysticercosis, and Other Infections Source Type: research
Conclusions:With this review we intend to demonstrate the wide range of neurological symptoms that LN can cause, and enhance that epidemiological context and clinical suspicion are important factors to the diagnosis.Disclosure: Dr. Espírito Santo has nothing to disclose. Dr. Almendra has nothing to disclose. Dr. Mendes has nothing to disclose. Dr. Veiga has nothing to disclose. Dr. Costa has nothing to disclose. Dr. Velon has nothing to disclose. Dr. Guimarães has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Autoimmunity with Infection, Syphilis, Lyme, Tuberculosis, and other Bacteria Source Type: research
Conclusions:Although mechanical causes are high in the differential diagnosis of cervical radiculopathy, Lyme disease is well-known to have symptoms of radiculitis and should be considered in the assessment of cervical pain. A typical early syndrome due to neuroborreliosis has been characterized as a triad of the symptoms mentioned above including radicular pain, cranial or peripheral paresis, and lymphocytic meningitis and is called "Bannwarths syndrome" (Bannwarth, 1941).Disclosure: Dr. Hannoun has nothing to disclose. Dr. Gudin has received personal compensation for activities with Purdue, Endo, Astra Zeneca, ...
Source: Neurology - Category: Neurology Authors: Tags: Autoimmunity with Infection, Syphilis, Lyme, Tuberculosis, and other Bacteria Source Type: research
This article is protected by copyright. All rights reserved. Swimming with sugar: We demonstrate that the flagellar filament proteins of oral bacterium Treponema denticola are modified with a novel glycan (a C7‐acylated pseudaminic acid derivative, m/z 451.2) and that such a modification is essential for flagellar assembly and motility.
Source: Molecular Microbiology - Category: Microbiology Authors: Tags: Research Article Source Type: research
This morning, I awoke to find that I had been copied on dozens of Twitter message exchanges among several people who were discussing the pathology of Borrelia burgdorferi, the bacterium that causes Lyme disease, among human beings and mice. My first thought was "Seriously?! It's too early for this!" My second thought was "well, David, your Twitter sure has evolved from your pre-Lyme days when you used it mostly to promote vapid celebrity interviews." As I began my morning caffeine ritual and read through each of the messages, I gained a new appreciation for some of the real complexities of "in...
Source: Healthy Living - The Huffington Post - Category: Consumer Health News Source Type: news
"Who knew there would be so much interest in a biomechanics paper??!!" Those are the words--and the multiple exclamation points--of Tara Moriarty, proprietor of the Moriarty Lab, an infectious diseases research lab that studies primarily Borrelia burgdorferi (Bb) the bacterium that causes Lyme disease. Moriarty is the principal investigator of a new academic paper from the University of Toronto that details the mechanism by which Bb "crawl" through the body. Scientific American is among the many mainstream outlets that discussed the findings, which may represent a major step in making t...
Source: Healthy Living - The Huffington Post - Category: Consumer Health News Source Type: news
This study evaluated antibiotic vs placebo. The study was terminated early due to the determined likelihood that a beneficial effect would not be found. When this was critically analyzed with biostatistical methods, an article was published which I believe demonstrates that Klempner's study was so poorly designed and analyzed that in order for a treatment effect to have been observed, the antibiotic treated patients would have had to improve to a level of health which was a full standard deviation better than the average health of the general population. It's a reasonable hope for antibiotics to return a patient to a somew...
Source: Science - The Huffington Post - Category: Science Source Type: news
Agents that cause Lyme disease, relapsing fever, leptospirosis, and syphilis belong to the phylum Spirochaetae—a unique lineage of bacteria most known for their long, spiral morphology. Despite the relevance to human health, little is known about the most fundamental aspects of spirochete growth. Here, using quantitative microscopy to track peptidoglycan...
Source: Proceedings of the National Academy of Sciences - Category: Science Authors: Tags: Inaugural Articles Biological Sciences Source Type: research
More News: Borrelia | Epidemiology | Infectious Diseases | Lyme Disease | Syphilis