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  1. Home
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Browsing by Author "Özbel, Y"

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    The in vitro Effects of Azithromycin and Clarithromycin on Promastigotes and Amastigotes of Leishmania tropica
    Balcioglu, IC; Ok, ÜZ; Özbel, Y; Girginkardesler, N; Özbilgin, A
    Leishmania (L.) tropica is one of the most common species responsible for cutaneous leishmaniasis (CL) in the Old World including Turkey. The pentavalent antimonials are widely used as intralesional and/or intramuscular in the treatment of CL, but increase in resistance to these agents led to investigations on alternative drugs. In vitro antileishmanial activities of two macrolides, azithromycin and clarithromycin were evaluated on promastigotes in RPMI 1640 medium and amastigotes in macrophage series of L. tropica. ED50 values of azithromycin and clarithromycin were found to be 5 mu g/ml and <5 mu g/ml on promastigotes, and 50-75 mu g/ml and <3 mu g/ml on amastigotes, respectively, while ED90 values of the same drugs were 75 mu g/ml and 25 mu g/ml on promastigotes and 100 mu g/ml and 10 mu g/ml on amastigotes, respectively. Our data suggested that clarithromycin and azithronnycin were effective on both L. tropica promastigotes and amastigotes in vitro. Clarithromycin was found to be more effective than azithromycin at lower concentrations on promastigotes and amastigotes. In vivo studies should be planned to detect intracellular concentrations of these drugs for the effective route and dosage.
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    Evaluation of three new culture media for the cultivation and isolation of Leishmania parasites
    Limoncu, M; Özbilgin, A; Balcioglu, I; Özbel, Y
    The aim of this study was to establish novel culture media for Leishmania parasites with a potential of obtaining high amounts of promastigotes with long-term viability, and consisting of ingredients that were available in microbiology or parasitology laboratories. Other features of these media included no requirement for blood, FCS (Fetal calf serum) or erythrocyte lysate, inexpensiveness and easiness in preparation. In addition, aspiration samples obtained from cutaneous leishmaniasis (CL) suspected patients were cultivated in these media. Three culture media were prepared; trypticase beef extract hemoglobine (TBH) medium, including trypticase, beef extract and yeast extract as the protein source, glucose as the carbohydrate source, FeNH4 and bovine hemoglobine; Peptone-Yeast extract medium (PY), found to be effective in our previous studies for cultuvation of on Leishmania parasites, with bovine hemoglobine (PYH) and Brain Heart medium, containing bovine hemoglobine (BKH). The number of promastigotes were the highest on day 8 and 13 in RPMI 1640 and BKH medium, respectively. In TBH and PYH, the peak level of reproduction was between day 16 and 19, and it was found to be higher in TBH medium after the day 20. The number of promastigotes were found to be close in BKH, TBH and RPMI-1640 media and lower in PYH medium. Examination of the cultivation of the aqueous lesion specimens of the 10 CL-suspected cases in media revealed reproduction in 9 flasks of RPMI-1640 containing 10% FCS, 7 TBH, 6 BKH and 4 PYH. The differences between the culture media were not found to be statistically significant. These results suggested that, three liquid culture media, assessed in this study, with no requirement for FCS or erythrocyte lysate, were effective in the reproduction of promastigotes, and could be used effectively in the patient isolation and field studies, as well.
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    Are Regular Controls Conducted in Schools Adequate in Lowering the Incidence of Head Lice (Pediculus capitis) Infestation?
    Balcioglu, IC; Kurt, Ö; Limoncu, ME; Ermis, VÖ; Tabak, T; Oyur, T; Muslu, H; Kavur, H; Görgün, S; Girginkardesler, N; Yereli, K; Bilaç, C; Özbel, Y
    In the present study, school children of similar age-groups from two villages of Manisa province, namely Osmancali and Maldan, were examined in regular time periods to monitorize the changes in the incidence of head lice (Pediculus capitis). A total of 2091 children (1565 in Osmancali and 526 in Maldan) were combed with a newly-designed lice comb (PDC (R), KSL Consulting, Helsinge, Denmark) four times in May and November in 2008 and 2009. The assessment of the results was conducted with SPSS (R) v.15 program using CHAID and logistic regression analysis. The results of the periodic examinations of the children showed that the infestation rate of girls were found to be higher significantly compared to boys (P<0.001), and the incidence of head lice infestation in boys from Osmancali was found three times higher than the incidence in boys in Maldan (P=0.002). In addition, regular dry combing and treatment lowered the infestation rates among girls significantly (P=0.001). According to the results of the study, regular dry combing of school children with specially-designed lice combs may be essential for the control of this common infestation, especially in rural areas.
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    Leishmaniasis in Turkey
    Ok, ÜZ; Balcioglu, IC; Özkan, AT; Özensoy, S; Özbel, Y
    Leishmaniases are widespread in most countries in the Mediterranean basin, including Turkey. Two forms are observed in Turkey; Leishmania infantuni is responsible from visceral leishmaniasis (VL), and L. tropica causes cutaneous leishmaniasis (CL). Phlebotomus sergenti, P. papatasi, P. major and P. syriacus are considered to be the probable vectors, and dogs are the main reservoir of L. infantuni, while P. sergenti is the main suspected vector of L. tropica. VL is sporadically seen mainly in the Aegean, Mediterranean, and Central Anatolia Regions, but CL is endemic, especially in the Southeastern and Mediterranean Regions. Major touristic sites are free of both infections, and no infection is reported in any tourist. Mean number of annual VL and CL cases reported to Ministry of Health are 40 and 1,204, respectively, in the last four years. These data suggest that both VL and CL represent a public health problem in Turkey, but a decline is observed in the number of cases with both infections in recent years. (C) 2002 Elsevier Science B.V. All rights reserved.
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    Detection of Leishmania RNA virus 2 in Leishmania species from Turkey
    Nalçaci, M; Karakus, M; Yilmaz, B; Demir, S; Özbilgin, A; Özbel, Y; Töz, S
    Background: Leishmania RNA virus (LRV) is a double-stranded RNA (dsRNA) virus infecting some Leishmania strains and triggering a destructive hyperinflammatory response in mammalian hosts in the New World. There is limited knowledge of the presence of this virus in Old World Leishmania species and its role in the outcome of the disease. We aimed to investigate the presence of LRV in Leishmania species/strains from Turkey. Methods: Twenty-nine previously identified Leishmania isolates (24 L. tropica, 2 L. infantum, 3 L. major) were examined for LRV positivity using dsRNA visualization in agarose gel after total nucleic acid extraction and RQ-deoxyribonuclease treatment and amplification of a 526 bp fragment of the LRV2-specific RNA-dependent RNA polymerase gene by reverse transcription polymerase chain reaction. Results: Ten (7 L. tropica [24.13%], 3 L. major [10.34%]) of the 29 Leishmania strains gave positive results for LRV. Basic Local Alignment Search Tool analysis showed that all these viruses are LRV2-1. LRV2 was detected for the first time in L. tropica strains in the present study. Conclusions: The clinical manifestation and resistance status of the disease can be different depending on the host and parasite species/strains. The presence of LRV2 may be one of the factors contributing the course of disease. Further studies are needed to elucidate the specific role of LRV2, as it may be a potential target for effective treatment strategies.
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    Toxicity of Thiamethoxam on Field-Collected Sand Flies (Diptera: Psychodidae) From Different Regions of Turkey
    Arserim, SK; Çetin, H; Yetismis, K; Omondi, ZN; Özbel, Y
    Phlebotomine sand flies (Diptera: Psychodidae) are the vectors of human and canine leishmaniasis, sand fly fever, and other arboviruses and bacteria. The control of sand flies is recommended by World Health Organization throughout the world. In this study, we investigated the susceptibility of field-collected sand flies against thiamethoxam in Turkey. The adult sand flies collected were from five different locations in three provinces; Yesiloz and Buyukpinar districts in Antalya province, Develi district in Kayseri province, and Ucpinar and Bayindirlik districts in Manisa province. They were investigated using two different doses (0.125 and 0.25 g ai/m(2)) of thiamethoxam under laboratory conditions. After 1-h exposure, all sand flies were found highly susceptible to thiamethoxam and both test doses caused 100% mortality after 24 h. Considering the KDT50 time, flies collected from Yesiloz district in Antalya province were found to be most sensitive and flies collected from Ucpinar district in Manisa province were found as the most resistance to thiamethoxam. The results show that Turkish sand flies were highly susceptible to thiamethoxam and it can be used for the control of sand flies in the field.
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    Treatment of head lice with dimeticone 4% lotion: comparison of two formulations in a randomised controlled trial in rural Turkey
    Kurt, Ö; Balcioglu, IC; Burgess, IF; Limoncu, ME; Girginkardesler, N; Tabak, T; Muslu, H; Ermis, Ö; Sahin, MT; Bilac, C; Kavur, H; Özbel, Y
    Background: Dimeticone 4% lotion was shown to be an effective treatment for head louse infestation in two randomised controlled trials in England. It is not affected by insecticide resistance but efficacy obtained (70-75%) was lower than expected. This study was designed to evaluate efficacy of dimeticone 4% lotion in a geographically, socially, and culturally different setting, in rural Turkey and, in order to achieve blinding, it was compared with a potential alternative formulation. Methods: Children from two village schools were screened for head lice by detection combing. All infested students and family members could participate, giving access to treatment for the whole community. Two investigator applied treatments were given 7 days apart. Outcome was assessed by detection combing three times between treatments and twice the week following second treatment. Results: In the intention to treat group 35/36 treated using dimeticone 4% had no lice after the second treatment but there were two protocol violators giving 91.7% treatment success. The alternative product gave 30/36 (83.3%) treatment success, a difference of 8.4% (95% CI-9.8% to 26.2%). The cure rates per-protocol were 33/34 (97.1%) and 30/35 (85.7%) respectively. We were unable to find any newly emerged louse nymphs on 77.8% of dimeticone 4% treated participants or on 66.7% of those treated with the alternative formulation. No adverse events were identified. Conclusion: Our results confirm the efficacy of dimeticone 4% lotion against lice and eggs and we found no detectable difference between this product and dimeticone 4% lotion with nerolidol 2% added. We believe that the high cure rate was related to the lower intensity of infestation in Turkey, together with the level of community engagement, compared with previous studies in the UK.
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    sandflyDST: a dynamic web-based decision support tool for the morphological identification of sandflies present in Anatolia and mainland Europe, and user study
    Karakülah, G; Karakus, M; Suner, A; Demir, S; Arserim, SK; Töz, S; Özbel, Y
    Species identification of sandflies is mainly performed according to morphological characters using classical written identification keys. This study introduces a new web-based decision support tool (sandflyDST) for guiding the morphological identification of sandfly species present in Anatolia and mainland Europe and classified in the Phlebotomus and Sergentomyia genera (both: Diptera: Psychodidae). The current version of the tool consists of 111 questions and 36 drawings obtained from classical written keys, and 107 photographs for the quick and easy identification of 26 species of the genus Phlebotomus and four species of the genus Sergentomyia. The tool guides users through a decision tree using yes/no questions about the morphological characters of the specimen. The tool was applied by 30 individuals, who then completed study questionnaires. The results of subsequent analyses indicated that the usability ((x) over bar (SUS Score) = 75.4) and users' level of appreciation (86.6%) of the tool were quite high; almost all of the participants considered recommending the tool to others. The tool may also be useful in training new entomologists and maintaining their level of expertise. This is a dynamic tool and can be improved or upgraded according to feedback. The tool is now available online at http://parasitology.ege.edu.tr/sandflyDST/index.php.
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    Seroprevalence of canine visceral leishmaniasis in Kuadasi, Turkey
    Töz, SÖ; Ertabaklar, H; Özbel, Y; Balcioglu, IC; Yildizli, N; Alkan, MZ
    Human and canine visceral leishmaniasis cases have been reported from Kusadasi, a town in western Turkey, since 1993. In order to better understand the epidemiology of canine visceral leishmaniasis (CanVL) in the region, we aimed: (i) to determine the prevalence of CanVL in Kusadasi using a randomly selected dog population and (ii) to measure the effect of case control on the prevalence of the disease. In this study, all 109 dogs kept at the dog shelter of Kusadasi Municipality (reflecting random selectivity) were screened serologically using IFAT and rK39 ELISA in 1999. Ten dogs (9.1%) were seropositive or borderline in 1 of the 2 tests. Seropositive dogs (8) died spontaneously or were euthanized, while borderline dogs (2) under-went monthly serological examinations. One year later, in a second sampling, a total of 85 dogs were examined (27 previously tested and 58 new). Four dogs (4.7%) showed seropositivity. Seropositive dogs (2) were euthanized while borderline dogs (2) underwent monthly serological examinations. The reduction in the prevalence of the disease (from 9.1% to 4.7%) appears to be the result of culling CanVL positive dogs from the general population.
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    Host-Parasite Interactions: Regulation of Leishmania Infection in Sand Fly
    Omondi, ZN; Arserim, SK; Töz, S; Özbel, Y
    Purpose Sand flies are the only proven vectors of leishmaniases, a tropical neglected disease endemic in at least 92 countries. Vector-parasite interactions play a significant role in vector-borne disease transmission. There are various bottlenecks to Leishmania colonization of the sand fly midgut. Such bottlenecks include the production of innate immune-related molecules, digestive proteases, parasite impermeable peritrophic membrane, and resident gut microbiota. These barriers determine the parasite load transmitted and, consequently, the disease outcome in mammalian host. Therefore, it is important to understand the molecular responses of both sand fly and Leishmania during infection. Method Here, we reviewed the published literature on sand fly-Leishmania interactions bringing together earlier and current findings to highlight new developments and research gaps in the field. Conclusion Recent research studies on sand fly-Leishmania interaction have revealed contrasting observations to past studies. However, how Leishmania parasites evade the sand fly immune response still needs further research. Sand fly response to Leishmania infection can be best understood by analyzing its tissue transcriptome. Better characterization of the role of midgut components could be a game changer in development of transmission-blocking strategies for leishmaniasis.
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    Complement C1, C3 and C4 levels in sera of leishmaniasis cases in Turkey
    Limoncu, ME; Sanlidag, T; Balcioglu, IC; Akçali, S; Özensoy, S; Özbel, Y
    Leishmaniasis is still a problem for many countries including developed ones. The subgroups of the serum complements have significant roles on the onset of the infection. The aim of this study was to determine the serum complement (C1, C3, C4) levels of cases with definite diagnosis of leishmaniasis and compare them with healthy controls. The study group included 43 visceral leishmaniasis (VL) and 13 cutaneous leishmaniasis (CL) cases. Two control groups were formed for the study. The first control group included 50 individuals of the same age group having no health complaints, admitted for routine control and found to be serologically negative. The second control group included 28 individuals, consistent with the diagnostic criteria of VL. The serum complement levels of C1, C3 and C4 were measured by the nephelometric method. The average levels of C1 were found to be high in VL cases (78.98%) and low in CL (41.69%) group, which was statistically significant (p=0.011). In addition, the average levels of C3 were high in CL group (96.08%) and low in VL group (62.00%), which was also statistically significant (p=0.010). C4 levels were found to be high in the control group, while similar in VL and CL groups. C1, C3, C4 levels were found to be lower in the first control group of healthy individuals. The levels of the subgroups of complement system show statistically significant in both VL and CL cases, which suggested that they could be useful in verifying the results of the serological examinations.
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    Cutaneous leishmaniasis infection in Balb/c mice using a Leishmania tropica strain isolated from Turkey
    Girginkardesler, N; Balcioglu, IC; Yereli, K; Özbilgin, A; Özbel, Y
    Leishmania tropica, which is endemic in Turkey, is the causative agent of cutaneous leishmaniasis. Leishmania tropica promastigotes (2 x 10(7)) isolated from a patient with dermal leishmaniasis and reproduced in NNN medium were inoculated subcutaneously into the footpads of 10 Balb/c mice. Cutaneous leishmaniasis developed on the footpads of 4 mice approximately 45 days later. Leishmania tropica amastigotes were observed in smear slides and then cultivated in NNN medium. Balb/c mice are a suitable laboratory model for this isolate of L. tropica and thus a source of amastigotes for studies on the immunology, chemotherapy, and pathogenicity of cutaneous leishmaniasis.
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    In vitro and in vivo activities of Haplophyllum myrtifolium against Leishmania tropica
    Östan, I; Saglam, H; Limoncu, ME; Ertabaklar, H; Toz, SÖ; Özbel, Y; Özbilgin, A
    This study aimed to evaluate the in vitro and in vivo leishmanicidal activity of an endemic Turkish plant and compare its efficacy with a reference drug. In addition to the in vitro activities of the ethanol, acidified and alkaloid extracts and furoquinoline alkaloids skimmianine and gamma-fagarine, in vivo antileishmanial activitiy of the acidified extract of Haplophyllum myrtifolium Boiss. (Rutaceae) were investigated against Leishmania tropica (L. tropica), a causative agent of cutaneous leishmaniasis. All the extracts and pure compounds showed in vitro inhibitory activity against the promastigotes of. L. tropica. The in vitro 50% inhibitory concentrations of gamma-fagarine, acidified extract, ethanol extract, skimmianine and alkaloid extract against promastigotes were determined as 8.7, 9.4, 10.9, 25.7 and 25.8 mu g/ml respectively. In vivo results of Haplophyllum myrtifolium acidified extract showed that this plant has a limited effect on decreasing the lesion size of experimental mice infected with Leishmania tropica. To the best of our knowledge, this is the first time both the in vitro and in vivo antileishmanial activity of Haplophyllum mrytifolium have been reported in the same research.
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    Evaluation of conjunctival swab sampling in the diagnosis of canine leishmaniasis: A two-year follow-up study in Cukurova Plain, Turkey
    Karakus, M; Töz, S; Ertabaklar, H; Pasa, S; Atasoy, A; Arserim, SK; Ölgen, MK; Alkan, MZ; Durrant, C; Özbel, Y
    The diagnosis of canine leishmaniasis (CanL) in symptomatic and asymptomatic dogs is a very important and problematic public health issue in Turkey. A longitudinal study was carried out on dogs in selected villages in the Cukurova Plain in Turkey, from July 2011 to June 2013, where cutaneous (CL) and visceral (VL) leishmaniasis is endemic. The study aimed to determine the prevalence of CanL and to evaluate the early diagnostic performance of the non-invasive conjunctival swab nested PCR (CS n-PCR) test in comparison with the Indirect Fluorescent Antibody Test (IFAT). The consecutive blood and CS samples from a representative number of dogs (80-100 dogs/each survey) were collected in a cohort of 6 villages located in the area. Clinical symptoms, demographic and physical features about each dog were noted and lymph node aspiration samples were obtained from selected dogs with lymphadenopathy. In four surveys during the period, a total of 338 sets (blood and CS) of samples from 206 dogs were obtained, such that 83 dogs were sampled more than once. In the cross-sectional analysis, the CanL prevalence was found to be 27.18% (between 7.14% and 39.13%) by IFAT and 41.74% (between 29.03% and 46.66%) by CS n-PCR. The isolated strains were identified as Leishmania infantum MON-1 (n = 9) and MON-98 (n = 2) by MLEE analysis. Genetic studies targeting the Hsp70 and ITS1 regions performed on 11 dog isolates also showed two clear separate groups. According to IFAT results, 24 of the 83 dogs sampled more than once showed seroconversion (n = 19) or a four-fold increase in Ab titers (n = 5), while 17 were positive in the initial screening. Forty-two dogs stayed negative during the whole period. The natural Leishmania exposure rate was detected as 31.14% in the study area. CS n-PCR only detected Leishmania infection earlier than IFAT in 8 dogs. No statistical difference was found after the analysis of demographical and physical data. The results indicated that (i) circulation of the dog population is very common in settlements in the Cukurova Plain, but the disease prevalence is high and stable, (ii) the performance of CS n-PCR for detecting Leishmania-dog contact is higher than IFAT, (iii) and some of the parasites isolated from dogs have different zymodemes and/or genotypes from previous human and sand fly isolates; suggesting the probability of two different cycles of leishmaniasis in this particular area. This hypothesis should be supported by future studies targeting vectors and-reservoirs. (C) 2015 Elsevier B.V. All rights reserved.
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    Vector and reservoir surveillance study in a canine and human leishmaniasis endemic area in most western part of Turkey, Karaburun
    Karakus, M; Arserim, SK; Kasap, ÖE; Pekagirbas, M; Aküzüm, D; Alten, B; Töz, S; Özbel, Y
    Leishmaniasis is an arthropod borne disease that is endemic in 102 countries and one and half million new cases are reported each year. Sand flies are the one and only proven vectors of the disease and dogs are the main reservoirs in urban areas. Karaburun peninsula is located in most western part of Turkey and is reported to be an endemic area for human and canine leishmaniasis. The most recent study was undertaken more than 15 years ago in The peninsula and no clear data available for vectors or reservoirs. Thus, we aimed to update the information regarding sand fly diversity, infection status of reservoirs and vectors in the study area. Sand flies were collected using CDC light traps at 13 different sites of Karaburun and species identification was made using previously published keys. Monospecific pools were generated using midguts with blood retention and were screened for the presence of Leishmania spp. DNA by molecular techniques. A non-invasive conjunctival swab sampling was performed to identify the infection status among reservoirs and species typing of the causative agent was also undertaken using ITS1 PCR. Three out of 30 pools were found positive for Leishmania infantum that were generated using guts of Phlebotomus tobbi (n:36). Among all sampled dogs (44) and cats (19), 11 and one of them were found positive for L. infantum, respectively. There was a decrease in the number of P. papatasi during the study period, while increase was observed in the number of P. tobbi. The presence of proven vectors and reservoirs as well as Leishmania DNA in cats was shown in the present study. Sand fly fauna is updated and Leishmania DNA presence in cats was reported in the study area for the first time.
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    Spatial distribution of phlebotomine sand flies in the Aydin Mountains and surroundings: the main focus of cutaneous leishmaniasis in western Turkey
    Özbel, Y; Balcioglu, IC; Ölgen, MK; Simsek, FM; Töz, SÖ; Ertabaklar, H; Demir, S; Alkan, MZ
    An entomological survey was conducted to determine the spatial distribution of phlebotomine fauna and understand the effect of environmental factors. The entomological survey was carried out during 2006-2007 in a study area in the rural area of Aydin province, near the Kusadasi town where VL, CL, and canine leishmaniasis (CanL) are endemic. In 2006 and 2007, 132 locations were sampled using sticky traps mainly on embankments. Detailed environmental and meteorological information was also collected for each location. The results of entomological studies indicated that the probable vectors are Phlebotomus tobbi and P. neglectus for VL and CanL, and P. similis for CL in this western leishmaniasis focus. The data revealed a correlation between their presence and spatial variables such as altitude, sampling site location, and humidity. The distribution areas of probable vector species in this study area allowed the identification of risk levels, which may provide useful information to guide the leishmaniasis research in endemic regions.
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    A New Approach for Determining the Spatial Risk Levels for Visceral and Cutaneous Leishmaniasis related with the Distribution of Vector Species in Western Part of Turkey using Geographical Information Systems and Remote Sensing
    Ölgen, MK; Özbel, Y; Balcioglu, IC; Demir, S; Simsek, F; Töz, SÖ; Ertabaklar, H; Alkan, MZ
    Leishmaniases are present in two clinical forms, as visceral and cutaneous, in Turkey showing a tendency of spreading throughout the country. The aim of the present study was to produce a new model for determining the spatial risk levels using the data in a selected study site in the western part of Turkey. The results of entomological studies in this leishmaniasis focus indicated the presence of suspected vector species Phlebotomus (Larroussius) tobbi and P (Larroussius) neglectus for the visceral, P (Paraphlebotomus) similis for cutaneous forms of the disease. The new risk model was developed based on univariate and multivariate binary logistic regression analyses of geographical variables as altitude, aspect, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI) and Land Surface Temperature (LST) values related to the distribution of these three species. The results of the new model were used to produce the risk maps and the potential distribution areas of the incriminated vector species with the use of geographical technologies which allowed the identification of the leishmaniasis risk levels that may provide useful information to guide the control program interventions.
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    Entomological Survey for the Detection of Sand Fly Fauna and Vector Species in the Cutaneous Leishmaniasis Endemic Area in East Mediterranean Region of Turkey, Mersin Province
    Limoncu, ME; Balcioglu, IC; Töz, S; Demir, S; Kavur, H; Karakus, M; Vardarli, AT; Özbel, Y
    Cutaneous (CL) and visceral (VL) forms of leishmaniasis, transmitted by sand flies, are seen in all countries located in Mediterranean Basin including Turkey. In this study, we aimed to conduct an entomological survey for the detection of sand fly fauna and vector species in Mersin province, one of the important endemic areas for CL in Turkey. In total, 912 sand fly specimens were collected in 2010 and 2011 using CDC light traps. Nine Phlebotomus (Diptera: Psychodidae) and three Sergentomyia (Diptera: Psychodidae) species were detected. Of the collected Phlebotomus sand flies, P. sergenti Parrot, 1917 (30.1%) was the most dominant followed by P. alexandri Sinton, 1928 (18.2%), P. neglectus/syriacusTonnoir Adler (12.0%), P. tobbi Adler & Theodor, 1930 (11.7%), and P. papatasi Scopoli, 1786 (10.2%), while S. minuta Rondani, 1843 (11.3%) was the dominant species among Sergentomyia. During the field work in 2011, female specimens (n = 81) were screened for the presence of Leishmania promastigotes by midgut dissection, and all were found negative.The rest of the collected female specimens (n = 334) were pooled according to species (P. alexandri, P. neglectus/syriacus, P. papatasi, P. sergenti, P. simici, and P. tobbi) and location (Mut, Silifke, and Anamur). In total, 29 pools were generated and real-time ITS1 PCR assay was performed to detect and identify natural Leishmania Ross, 1903 (Kinetoplastida: Trypanosomatida) infection.Two pools, both from Mut town, containing P. sergenti specimens were found positive and Leishmania tropics Ross, 1903 was identified as an infectious agent for both pools. In conclusion, the sand fly fauna was determined in an endemic area for CL. The detection of L. tropica DNA in P. sergenti specimens showed the possible vectorial role of this species in Mersin province.
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    Detection of Leishmania major and Leishmania tropica in domestic cats in the Ege Region of Turkey
    Pasa, S; Vardarli, AT; Erol, N; Karakus, M; Töz, S; Atasoy, A; Balcioglu, IC; Tuna, GE; Ermis, ÖV; Ertabaklar, H; Özbel, Y
    Leishmaniosis is a group of diseases caused by different species of Leishmania parasites in mammalian species. The aim of the present study was to investigate the presence of Leishmania spp. DNA in cats using real time polymerase chain reaction (RT-PCR) assays targeting internal transcribed spacer (ITS1) and heat-shock protein 70 gene (Hsp70) regions with Leishmania species-specific primers and probes. Blood samples were collected from 147 cats (73 female; 74 male) in the endemic regions for zoonotic visceral leishmaniasis in the western provinces of Turkey and analyzed using two RT-PCR assays. Additionally, Hsp70 RT-PCR products were sequenced. ELISA assays for feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) were also carried out for 145 of the 147 samples. Overall, 13/147(8.84%) cats were positive for Leishmania by RT-PCR (4 L. major and 9 L. tropica). FIV and FeLV antibody and/or antigen was detected in 4 and 5 cats among Leishmania DNA positives, respectively. To the best of our knowledge, this study is the first to investigate and report the presence of L. major and L. tropica infections in a large group of domestic cats in Turkey. The results obtained indicate that species identification of Leishmania is essential for epidemiological understanding and that clinical signs alone are not indicative for leishmaniosis in cats, as it is in dogs. This study suggests that extensive research should be carried out in cat populations in order to fully understand the role of cats in the epidemiology of the disease. (C) 2015 Elsevier B.V. All rights reserved.
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    Subungual myiasis in a woman with psychiatric disturbance
    Balcioglu, IC; Ecemis, T; Ayer, A; Özbel, Y
    Myiasis is caused by the invasion of tissues or organs of men and animals by dipterous larvae. The disease is infrequent in Turkey. A case of a 65-year-old woman having been initially diagnosed with chronic psychosis, and found to have a left big toe nail invaded by the larvae of Calliphora spp., is presented. A total of 17 maggots were removed from the left big toe of the patient, which were then determined as Calliphora spp. The patient has undergone surgical withdrawal of both nails of her big toes, followed by the administration of oral prophylactic antimicrobial treatment. This is the second recorded case of subungual myiasis by Calliphora spp. in Turkey. Myiasis should be considered in patients with lower personal hygiene, especially with chronic psychiatric disturbances. (c) 2008 Elsevier Ireland Ltd. All rights reserved.
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