- MeSH
- akutní retinální nekróza MeSH
- brucelóza farmakoterapie krev patofyziologie MeSH
- chorioretinitida MeSH
- diferenciální diagnóza MeSH
- herpetické infekce farmakoterapie klasifikace krev patofyziologie MeSH
- histoplazmóza farmakoterapie imunologie patofyziologie MeSH
- infekce bakteriemi rodu Bartonella farmakoterapie krev patofyziologie MeSH
- infekční nemoci * klasifikace komplikace MeSH
- kandidóza farmakoterapie patofyziologie patologie MeSH
- kryptokokóza farmakoterapie imunologie komplikace MeSH
- leptospiróza diagnóza farmakoterapie mikrobiologie patofyziologie MeSH
- lidé MeSH
- lymeská nemoc farmakoterapie krev patofyziologie MeSH
- myiáza diagnostické zobrazování klasifikace přenos MeSH
- oční symptomy * MeSH
- oční toxoplazmóza diagnostické zobrazování farmakoterapie MeSH
- onchocerkóza oční diagnostické zobrazování MeSH
- Pneumocystis carinii izolace a purifikace patogenita účinky léků MeSH
- schistosomóza diagnostické zobrazování klasifikace přenos MeSH
- spalničky komplikace krev patofyziologie MeSH
- toxokaróza imunologie patologie MeSH
- toxoplazmóza MeSH
- uveitida klasifikace MeSH
- zánět zrakového nervu MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
In Europe, Ixodes ricinus is the most important vector of human infectious diseases, most notably Lyme borreliosis and tick-borne encephalitis virus. Multiple non-natural hosts of I. ricinus have shown to develop immunity after repeated tick bites. Tick immunity has also been shown to impair B. burgdorferi transmission. Most interestingly, multiple tick bites reduced the likelihood of contracting Lyme borreliosis in humans. A vaccine that mimics tick immunity could therefore potentially prevent Lyme borreliosis in humans. A yeast surface display library (YSD) of nymphal I. ricinus salivary gland genes expressed at 24, 48 and 72 h into tick feeding was constructed and probed with antibodies from humans repeatedly bitten by ticks, identifying twelve immunoreactive tick salivary gland proteins (TSGPs). From these, three proteins were selected for vaccination studies. An exploratory vaccination study in cattle showed an anti-tick effect when all three antigens were combined. However, immunization of rabbits did not provide equivalent levels of protection. Our results show that YSD is a powerful tool to identify immunodominant antigens in humans exposed to tick bites, yet vaccination with the three selected TSGPs did not provide protection in the present form. Future efforts will focus on exploring the biological functions of these proteins, consider alternative systems for recombinant protein generation and vaccination platforms and assess the potential of the other identified immunogenic TSGPs.
- MeSH
- antigeny krev imunologie izolace a purifikace MeSH
- Borrelia burgdorferi izolace a purifikace MeSH
- imunizace MeSH
- infestace klíšťaty imunologie parazitologie MeSH
- klíště imunologie MeSH
- kousnutí klíštětem imunologie MeSH
- králíci MeSH
- lidé MeSH
- lymeská nemoc krev parazitologie přenos MeSH
- metody zobrazení buněčného povrchu metody MeSH
- peptidová knihovna MeSH
- peptidové fragmenty imunologie MeSH
- Saccharomyces cerevisiae MeSH
- skot MeSH
- slinné proteiny a peptidy imunologie MeSH
- slinné žlázy imunologie MeSH
- zvířata MeSH
- Check Tag
- králíci MeSH
- lidé MeSH
- mužské pohlaví MeSH
- skot MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- MeSH
- antigeny klasifikace krev MeSH
- laboratoře MeSH
- lidé MeSH
- lymeská nemoc * imunologie krev MeSH
- řízení kvality MeSH
- sérologické testy * metody MeSH
- statistika jako téma MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- hodnotící studie MeSH
- tabulky MeSH
OBJECTIVE: Lyme disease (LD) is chronic, multi-system zoonosis transmitted by ticks, and LD aetiological agents are spirochetes of the Borrelia burgdorferi sensu lato complex. The aim of the cross-sectional study was to analyze the LD incidence on the basis of the presence of specific antibodies in the serum of patients in Eastern Slovakia, and to compare the results of serological ELISA and immunoblot assays. METHODS: Venous blood with questionnaires was obtained by field sampling of respondents from Eastern Slovakia. Overall, we examined 537 human sera by the ELISA and for confirmation we tested all positive IgG antibodies against the Borrelia immunoblot assay. RESULTS: Our results confirmed the high serum prevalence of anti-Borrelia antibodies (17.9% for IgG), while the immunoblot seropositive test was confirmed in 69.8% of responders from ELISA IgG positive sera. Positive antibodies of the IgM class were found in 7.6% of the population under study. Most commonly found were antibodies against VlsE (80.2%), p41 (66.7%), p18 (56.3%), p100 (41.7%), p58 (31.3%), and p39 (30.2%). CONCLUSION: It should be noted that detection of antibodies against B. burgdorferi s.l. is only an indirect evidence of the presence of this bacterium in the development of clinical signs of LD in humans. Laboratory LD tests should be performed in accordance with valid standards, positive and uncertain results must be confirmed by the Western Blot/Immunoblot assay.
- MeSH
- Borrelia burgdorferi komplex klasifikace izolace a purifikace MeSH
- Borrelia burgdorferi imunologie MeSH
- dítě MeSH
- dospělí MeSH
- ELISA MeSH
- imunoglobulin G krev MeSH
- imunoglobulin M krev MeSH
- incidence MeSH
- lidé středního věku MeSH
- lidé MeSH
- lymeská nemoc krev diagnóza epidemiologie mikrobiologie MeSH
- mladiství MeSH
- protilátky bakteriální krev MeSH
- protilátky virové krev MeSH
- průřezové studie MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- séroepidemiologické studie MeSH
- zvířata MeSH
- Check Tag
- dítě MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Slovenská republika MeSH
OBJECTIVE: The aim of the presented cross-sectional seroepidemiological study was to determine the current presence of antibodies against B. burgdorferi s.l. in the groups of Slovak population, and to identify potential risk factors to Lyme borreliosis. METHODS: A group of 261 adults (patients from the Neurological Clinic with possible symptoms of LB and healthy persons with possible working exposure to tick bite: gardeners and soldiers working in afforested areas) were examined in order to assess the seroprevalence of anti-Borrelia antibodies. Sera were screened by commercial enzyme-linked immunosorbent assay (ELISA). The respondents completed questionnaires with general demographic, epidemiological and clinical data. RESULTS: We detected 17.2% presence of positive IgG and 5.7% presence of positive IgM antibodies in all investigated groups. Our results confirmed that the following risk factors such as age and gender are significantly associated with the presence of positive specific antibodies against investigated disease. CONCLUSION: The results of seroprevalence obtained in the present study confirm the possibility of infection with B. burgdorferi among respondents exposed to contact with ticks.
- MeSH
- Borrelia burgdorferi izolace a purifikace MeSH
- dospělí MeSH
- ELISA MeSH
- imunoglobulin G krev MeSH
- imunoglobulin M krev MeSH
- lidé středního věku MeSH
- lidé MeSH
- lymeská nemoc krev diagnóza epidemiologie MeSH
- protilátky bakteriální krev MeSH
- průřezové studie MeSH
- rizikové faktory MeSH
- senioři MeSH
- séroepidemiologické studie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Slovenská republika MeSH
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 with neuroborreliosis, 32 with erythema migrans, and 5 with arthritis) plus 70 controls from blood donors and syphilis patients. ELISA based on whole-cell antigens has superior sensitivity and superior negative predictive value and serves as an excellent screening test, although its specificity and positive predictive values are low. Species-specific tests have volatile parameters. Their low sensitivity and low negative predictive value handicap them in routine diagnostics. Tests with recombinant antigens are characterized by high specificity and high positive predictive value and have a wide range of use in diagnostic practice. Diagnostic parameters of individual tests depend on the composition of the sample panel. Only a small proportion of contradictory samples giving both negative and positive results is responsible for discrepancies between test results. Correlation of test results with the patient's clinical state is limited, especially in the erythema migrans group with high proportions of negative and contradictory results. In contrast, IgG test results in the neuroborreliosis group, which are more concordant, show acceptable agreement with Borrelia status.
- MeSH
- antigeny bakteriální imunologie MeSH
- Borrelia burgdorferi imunologie izolace a purifikace MeSH
- Borrelia imunologie izolace a purifikace MeSH
- imunoanalýza metody MeSH
- lidé MeSH
- lymeská nemoc krev klasifikace diagnóza MeSH
- protilátky bakteriální krev MeSH
- reagenční diagnostické soupravy MeSH
- senzitivita a specificita MeSH
- sérologické testy metody MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
Předložené sdělení popisuje atypické bakterie klinicky významné v podmínkách České republiky. Charakterizuje nejčastější onemocnění způsobená těmito bakteriemi, jejich mikrobiologickou diagnostiku a možnosti antibiotické léčby.
The presented paper describes atypical bacteria clinically significant in the conditions of the Czech Republic. It characterizes themost common diseases caused by these bacteria, their microbiological diagnostics and the possibilities of antibiotic treatment.
- MeSH
- antibakteriální látky terapeutické užití MeSH
- bakteriální infekce * farmakoterapie mikrobiologie MeSH
- chlamydiové infekce farmakoterapie MeSH
- legionelóza farmakoterapie MeSH
- leptospiróza farmakoterapie MeSH
- lidé MeSH
- lymeská nemoc farmakoterapie krev MeSH
- mykoplazmové infekce farmakoterapie MeSH
- neurosyfilis farmakoterapie MeSH
- syfilis farmakoterapie MeSH
- ureaplasmatické infekce farmakoterapie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- práce podpořená grantem MeSH
- přehledy MeSH
- MeSH
- Borrelia burgdorferi izolace a purifikace MeSH
- dilatační kardiomyopatie * etiologie mikrobiologie MeSH
- finanční podpora výzkumu jako téma * MeSH
- kardiologie MeSH
- lidé MeSH
- lymeská nemoc krev MeSH
- revaskularizace myokardu MeSH
- srdce * mikrobiologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- zprávy MeSH
