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Showing "Searching Persistence Infection Lyme Disease" PubMed Articles 1–25 of 28,000+

Insights from the Geographic Spread of the Lyme Disease Epidemic.

Lyme disease is the most common reportable zoonotic infection in the United States. Recent data suggests spread of the Ixodes tick vector and increasing incidence of Lyme disease in several states, including Pennsylvania. We sought to determine the clinical presentation and healthcare utilization patterns for pediatric Lyme disease in western Pennsylvania.

Improving access to appropriate post-exposure doxycycline for Lyme disease prophylaxis: role for community pharmacies.

The transmission of Borrelia burgdorferi to humans through tick bites results in Lyme disease. Appropriate therapy for Lyme disease is antibacterial drugs, most often doxycycline. Patients often approach community pharmacists for self-care assistance with the symptoms of Lyme disease: fever, headache, fatigue and skin rash. Pharmacists with the patient history are trained and capable of appropriately dispensing doxycycline to treat these patients and prevent the spread of infection to the joints, nerves or ...

Positive Two-tiered Lyme Disease Serology is Uncommon in Asymptomatic Children Living in Endemic Areas of the U.S.

Knowing the frequency of positive Lyme disease serology in children without signs of infection facilitates test interpretation. Of 315 asymptomatic children from Lyme disease endemic regions, 32 had positive or equivocal C6 enzyme linked immunoassays, but only 5 had positive IgG or IgM supplemental immunoblots (1.6%, 95% confidence interval 0.7-3.7%).

Lyme Arthritis: An Update for Clinical Practice.

Lyme disease is the most common vector-borne illness in North America, with the majority of cases occurring in the Northeast and upper Midwest. Lyme arthritis is the most prevalent manifestation of late-stage Lyme disease. Lyme arthritis typically presents as a monoarthritis or oligoarthritis in large joints such as the knee. Accompanying positive 2-tier Lyme serologies or polymerase chain reaction from synovial fluid/tissue is considered diagnostic for patients from an endemic area. The mainstay of initial...

Modeling Lyme disease transmission.

Lyme disease, a typical tick-borne disease, imposes increasing global public health challenges. A growing body of theoretical models have been proposed to better understand various factors determining the disease risk, which not only enrich our understanding on the ecological cycle of disease transmission but also promote new theoretical developments on model formulation, analysis and simulation. In this paper, we provide a review about the models and results we have obtained recently on modeling and analyz...

Metabolites of prostaglandin synthases as potential biomarkers of Lyme disease severity and symptom resolution.

Lyme disease or Lyme borreliosis (LB) is the commonest vector-borne disease in the North America. It is an inflammatory disease caused by the bacterium Borrelia burgdorferi. The role of the inflammatory processes mediated by prostaglandins (PGs), thromboxanes and leukotrienes (LTs) in LB severity and symptoms resolution is yet to be elucidated.

Lyme disease in Perú. A clinical and epidemiological review.

This is a critical and organized review of all the available and updated information on Lyme disease and Borrelia infection in Peru. Several studies of positive serology to Borrelia burgdorferi and several cases of Lyme disease have been reported in Peru in the last two decades. New information suggests that new species of Borrelia burgdorferi sensu lato do exist in South America, and possibly in Peru. Future genetic and microbiology studies in this part of the continent, not only in cases with an indetermi...

Borrelia burgdorferi protein interactions critical for microbial persistence in mammals.

Borrelia burgdorferi is the causative agent of Lyme disease that persists in a complex enzootic life cycle, involving Ixodes ticks and vertebrate hosts. The microbe invades ticks and vertebrate hosts in spite of active immune surveillance and potent microbicidal responses, and establishes long-term infection utilizing mechanisms that are yet to be unraveled. The pathogen can cause multi-system disorders when transmitted to susceptible mammalian hosts, including in humans. In the past decades, several studie...

Oral Management for Pediatric Lyme Meningitis.

Guidelines for pediatric Lyme meningitis recommend treatment with parenteral therapy [1, 2]. Adult studies suggest that Lyme meningitis can be successfully treated with oral therapy. Our objective was to evaluate the clinical response, side effects and outcome of oral therapy for Lyme meningitis in the pediatric population compared with parenteral therapy in an area endemic for Lyme disease.

A Case of Optic Neuritis Secondary to Lyme Disease.

Optic neuritis is a condition associated with various systemic diseases, such as multiple sclerosis, and is also considered a rare complication of Lyme disease.

Acute abdominal pain caused by neuroborreliosis.

Lyme disease is a multisystem disease which can present itself in several ways. When the nervous system is involved, it is called Lyme neuroborreliosis. Both central and peripheral nervous systems can be affected.

Variants in Immune-related Genes and Genital HPV 16 Persistence in Men.

While most human papillomavirus (HPV) infection clears on its own, persistent HPV infection can cause genital warts and anal, penile and oropharyngeal cancers in men. We conducted genetic analysis in a sub-cohort of the HPV infection in men (HIM) study to test the hypothesis that differences in host genes influence HPV persistence in men.

Infection history of the blood-meal host dictates pathogenic potential of the Lyme disease spirochete within the feeding tick vector.

Lyme disease in humans is caused by several genospecies of the Borrelia burgdorferi sensu lato (s.l.) complex of spirochetal bacteria, including B. burgdorferi, B. afzelii and B. garinii. These bacteria exist in nature as obligate parasites in an enzootic cycle between small vertebrate hosts and Ixodid tick vectors, with humans representing incidental hosts. During the natural enzootic cycle, infected ticks in endemic areas feed not only upon naïve hosts, but also upon seropositive infected hosts. In the c...

First detection and molecular identification of Borrelia species in Bactrian camel (Camelus bactrianus) from Northwest China.

Comprehensive epidemiological surveys for Lyme disease have not been conducted for the Bactrian camel in China. In this study, a total of 138 blood specimens collected from Bactrian camels from Zhangye City in Gansu Province and Yili and Aksu in Xinjiang Province, China, were examined for the presence of Borrelia spp. Species-specificity nested PCR based on the 5S-23S rRNA, OspA, flaB and 16S rRNA genes revealed that the total positive rate of Borrelia spp. was 3.6% (5/138, 95% CI = 0.2-17.9). These res...

Frequent Exposure to Many Hunting Dogs Significantly Increases Tick Exposure.

Certain professionals have more exposure to animals and therefore an increased risk of zoonoses. Professional hunting dog caretakers work with upwards of 50 dogs and are exposed to zoonoses through exposure to multiple potentially infectious canine secretions or excretions, as well as to the ticks that dogs carry. Dog caretakers reported having found embedded ticks on their bodies 5.83 times more than environment-only controls. Zoonotic Lyme disease, first in the United States for morbidity due to a vector-...

Genome-wide analysis of Borrelia turcica and 'Candidatus Borrelia tachyglossi' shows relapsing fever-like genomes with unique genomic links to Lyme disease Borrelia.

Borrelia are tick-borne bacteria that in humans are the aetiological agents of Lyme disease and relapsing fever. Here we present the first genomes of B. turcica and B. tachyglossi, members of a recently described and rapidly expanding Borrelia clade associated with reptile (B. turcica) or echidna (B. tachyglossi) hosts, transmitted by hard ticks, and of unknown pathogenicity. Borrelia tachyglossi and B. turcica genomes are similar to those of relapsing fever Borrelia species, containing a linear ~ 900 kb ...

Multi-Scale Clustering of Lyme Disease Risk at the Expanding Leading Edge of the Range of Ixodes scapularis in Canada.

Since its detection in Canada in the early 1990s,, the primary tick vector of Lyme disease in eastern North America, has continued to expand northward. Estimates of the tick's broad-scale distribution are useful for tracking the extent of the Lyme disease risk zone; however, tick distribution may vary widely within this zone. Here, we investigatednymph distribution at three spatial scales across the Lyme disease emergence zone in southern Quebec, Canada. We collected ticks and compared the nymph densities a...

Cellular Determinants of HIV Persistence on Antiretroviral Therapy.

The era of antiretroviral therapy has made HIV-1 infection a manageable chronic disease for those with access to treatment. Despite treatment, virus persists in tissue reservoirs seeded with long-lived infected cells that are resistant to cell death and immune recognition. Which cells contribute to this reservoir and which factors determine their persistence are central questions that need to be answered to achieve viral eradication. In this chapter, we describe how cell susceptibility to infection, resista...

Human adenovirus infections: update and consideration of mechanisms of viral persistence.

To provide an update on recent studies of human adenoviral (HAdV) infections and to explore the mechanisms of viral persistence and the role of persistent infection in disseminated disease in immunocompromised patients.

Tick Bite-Associated Morphea: A Case Report.

Borrelia burgdorferi, the causative organism of Lyme disease, has been linked to the development of scleroatrophic skin conditions including morphea, although this association remains controversial. The possibility that tick bite with or without concurrent Borrelia infection instigates that morphea development is important to recognize because this could prompt further workup for Lyme disease, or other tick-borne illness, which, when untreated, can have devastating consequences. Here, we report a case of a ...

Adverse Events Associated with Antibiotics and Intravenous Therapies for Post-Lyme Disease Syndrome in a Commercially Insured Sample.

Non-guideline endorsed post-treatment courses of antibiotics for post-Lyme disease syndrome (PLDS) have been linked to adverse patient outcomes, but these findings have yet to be validated in large systematic evaluations.

Efficient detection of symptomatic and asymptomatic patient samples for Babesia microti and Borrelia burgdorferi infection by multiplex qPCR.

Tick-borne infections have been increasing steadily over the years, with co-infections with Borrelia burgdorferi and Babesia microti/divergens emerging as a serious health problem. B. burgdorferi is a spirochetal bacterium that causes Lyme disease while protozoan pathogens belonging to Babesia species are responsible for babesiosis. Currently used serological tests do not always detect acute Lyme disease or babesiosis, and fail to differentiate cured patients from those who get re-infected. This is a major ...

Calculated decisions: Rule of 7s for Lyme meningitis

The Rule of 7s for Lyme Meningitis is a validated clinical prediction rule to distinguish Lyme meningitis from aseptic meningitis.

Double-stranded viral RNA persists in vitro and in vivo during prolonged infection of porcine reproductive and respiratory syndrome virus.

In order to study the mechanism of PRRSV persistence, an in vitro model of persistence was developed by serially passaging PRRSV-infected MARC-145 cells 109 times. Viral persistence was detected to be associated with increased double-stranded (dsRNA) in the infected cells. In PRRSV infected pigs, reduced ratio of plus to minus strands of viral RNA was observed in lymphoid tissues from PRRSV persistent pigs at 52 days post infection. Viral dsRNA was mostly detected in the germinal center during persistent in...

mTOR signaling mediates effects of common gamma-chain cytokines on T cell proliferation and exhaustion: implications for HIV-1 persistence and cure research.

: Chronic elevation of plasma cytokines is a key feature of HIV infection. The physiological consequence of this response to infection and its role in HIV persistence is not fully understood. Here, we show that common gamma chain (γc)-cytokines induce both proliferation and expression of T cell exhaustion markers in a mTOR-dependent fashion, suggesting a possible therapeutic target that, if inhibited, could diminish HIV reservoir expansion, persistence, and resistance to immune surveillance.

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