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cutanous leishmaniasis

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https://www.readbyqxmd.com/read/29790236/forecasting-zoonotic-cutaneous-leishmaniasis-using-meteorological-factors-in-eastern-fars-province-iran-a-sarima-analysis
#1
Hamid Reza Tohidinik, Mehdi Mohebali, Mohammad Ali Mansournia, Sharareh R Niakan Kalhori, Mohsen Ali-Akbarpour, Kamran Yazdani
OBJECTIVES: To predict the occurrence of zoonotic cutaneous leishmaniasis (ZCL) and evaluate the effect of climatic variables on disease incidence in the east of Fars province, Iran using the Seasonal Autoregressive Integrated Moving Average (SARIMA) model. METHODS: The Box-Jenkins approach was applied to fit the SARIMA model for ZCL incidence from 2004 to 2015. Then the model was used to predict the number of ZCL cases for the year 2016. Finally, we assessed the relation of meteorological variables (rainfall, rainy days, temperature, hours of sunshine and relative humidity) with ZCL incidence...
May 22, 2018: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29786651/clinical-efficacy-associated-with-enhanced-antioxidant-enzyme-activities-of-silver-nanoparticles-biosynthesized-using-moringa-oleifera-leaf-extract-against-cutaneous-leishmaniasis-in-a-murine-model-of-leishmania-major
#2
Manal El-Khadragy, Ebtesam M Alolayan, Dina M Metwally, Mohamed F Serag El-Din, Sara S Alobud, Nour I Alsultan, Sarah S Alsaif, Manal A Awad, Ahmed E Abdel Moneim
Leishmaniasis is one of the most significant vector-borne syndromes of individuals. This parasitic infection can be affected by many species of Leishmania, most of which are zoonotic. Natural products have made and are continuing to make important contributions to the search for new antileishmanial agents. The use of plants in the production assembly of silver nanoparticles has drawn attention because of its rapid, eco-friendly, non-pathogenic, economical protocol and provides a single step technique for the biosynthetic process...
May 22, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29780019/parasitic-infections-in-individuals-travelling-to-america-and-precautionary-measures
#3
Mehmet Aykur, Muhammet Karakavuk, Ayşegül Ünver, Hande Dağcı
Over the past decade, the number of international travels has increased. Hence, the risk of transmission of parasitic diseases has also increased. One of the risk infections is malaria; Plasmodium vivax and P. falciparum species can be transmitted. The distribution of leishmaniasis cases has been reported from the south of USA to the north of Argentina. Approximately 57,000 cases of cutaneous and mucocutaneous leishmaniasis occur annually, and approximately 4000 visceral leishmaniasis cases are observed. It is reported that Chagas disease is endemic in 21 countries, and approximately 6 million people are affected every year...
March 2018: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29780014/evaluation-of-in-vitro-and-in-vivo-drug-efficacy-over-leishmania-tropica-a-pilot-study
#4
Ahmet Özbilgin, İbrahim Çavuş, Ahmet Yıldırım, Tuğba Kaya, Hatice Ertabaklar
OBJECTIVE: Two pentavalent antimonials, meglumine antimoniate (Glucantime®, France) and sodium stibogluconate (Pentostam®, England), are used to treat cutaneous leishmaniasis (CL) in Turkey. The present study, serving as a guidebook for young researchers, aims to provide basis for conducting drug resistance tests and active ingredient scanning in in vitro and in vivo models. METHODS: A CL isolate kept in liquid nitrogen was initially thawed and genotyped by real-time polymerase chain reaction (PCR) using ITS1 prob...
March 2018: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29772890/application-of-decision-tree-for-prediction-of-cutaneous-leishmaniasis-incidence-based-on-environmental-and-topographic-factors-in-isfahan-province-iran
#5
Roghieh Ramezankhani, Nooshin Sajjadi, Roya Nezakati Esmaeilzadeh, Seyed Ali Jozi, Mohammad Reza Shirzadi
Cutaneous Leishmaniasis (CL) is a neglected tropical disease that continues to be a health problem in Iran. Nearly 350 million people are thought to be at risk. We investigated the impact of the environmental factors on CL incidence during the period 2007- 2015 in a known endemic area for this disease in Isfahan Province, Iran. After collecting data with regard to the climatic, topographic, vegetation coverage and CL cases in the study area, a decision tree model was built using the classification and regression tree algorithm...
May 8, 2018: Geospatial Health
https://www.readbyqxmd.com/read/29768531/effect-of-vegetation-on-cutaneous-leishmaniasis-in-paran%C3%A3-brazil
#6
Helen Aline Melo, Diogo Francisco Rossoni, Ueslei Teodoro
BACKGROUND: Cutaneous leishmaniasis (CL) is endemic in the state of Paraná, Brazil. OBJECTIVE: This study aimed at analysing the influence of the remaining native vegetation on the prevalence of CL in Paraná. METHODS: Global testing was used for spatial autocorrelation along with simultaneous autoregressive model (SAR). The regression was based on the CL coefficient (cases/100,000 inhabitants) as a function of the percentage of natural vegetation cover, altitude, total number of cases, and spatial density (SD) per km2; the location data of the Paraná state municipalities and the detection coefficient (DC) (cases/100,000 inhabitants) of autochthonous cases of CL were obtained from the SINAN in 2012 and 2016...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29765969/cutaneous-leishmaniasis-a-case-involving-the-scalp-clinical-and-videodermoscopic-findings
#7
Carlos Daniel Sánchez Cárdenas, Yolanda Judith Álvarez Luna, Yesenia Bello Hernández, Daniel Asz Sigall, Roberto Arenas Guzmán
Cutaneous leishmaniasis (CL) is a worldwide infectious disease caused by flagellate protozoa of the genus Leishmania . In America, the species most commonly responsible for CL are L. mexicana and L. brasiliensis . Usually, in America, it is transmitted by sand flies mainly of the genus Lutzomyia and Psychodopygus . CL most commonly affects exposed areas and is characterized by an erythematous infiltrated and ulcerated papular or nodular lesion. We report a 28-year-old male, with a 6-month history and a previous trip to the forest in the south of Mexico...
April 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29764246/randomized-double-blind-study-on-intralesional-metronidazole-vs-intralesional-sodium-stibogluconate-in-l-donovani-cutaneous-leishmaniasis
#8
Vijani N Somaratne, Ranthilaka R Ranawaka, H M Jayaruwan, D M Wipuladasa, S H Padmal de Silva
OBJECTIVES: Aim of our study was to assess the efficacy of intralesional metronidazole on L. donovani cutaneous leishmaniasis (CL). MATERIAL AND METHODS: 188 patients with CL were randomly allocated to intralesional sodium stibogluconate (SSG) and intralesional metronidazole. Cure was assessed after 1-10 injections. Cure rates were assessed for statistical significance using Chi square test at p = 0.05 level (SLCTR/2014/028). RESULTS: When the treatment cut off was taken at 100%, the rate of cure for SSG (n = 64, 65...
May 15, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29757525/entomological-surveys-of-lutzomyia-flaviscutellata-and-other-vectors-of-cutaneous-leishmaniasis-in-municipalities-with-records-of-leishmania-amazonensis-within-the-bragan%C3%A3-a-region-of-par%C3%A3-state-brazil
#9
Bruno M Carvalho, Thiago Vasconcelos Dos Santos, Iorlando da R Barata, José Aprígio N Lima, Fernando T Silveira, Mariana M Vale, Paul D Ready, Elizabeth F Rangel
In southeast Amazon, Lutzomyia (Nyssomyia) flaviscutellata is the incriminated vector of Leishmania (Leishmania) amazonensis, a causative agent of zoonotic cutaneous leishmaniasis (CL). The optimal methods for surveying Lu. flaviscutellata were investigated in the Bragança region, northeast Pará State, Brazil, selected for the presence of Le. amazonensis. The performances of modified Disney traps and CDC light traps were compared in four ecotopes within and around four village transects during the wet and dry seasons...
June 2018: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29757380/simultaneous-population-pharmacokinetic-modelling-of-plasma-and-intracellular-pbmc-miltefosine-concentrations-in-new-world-cutaneous-leishmaniasis-and-exploration-of-exposure-response-relationships
#10
Anke E Kip, María Del Mar Castro, Maria Adelaida Gomez, Alexandra Cossio, Jan H M Schellens, Jos H Beijnen, Nancy Gore Saravia, Thomas P C Dorlo
Objectives: Leishmania parasites reside within macrophages and the direct target of antileishmanial drugs is therefore intracellular. We aimed to characterize the intracellular PBMC miltefosine kinetics by developing a population pharmacokinetic (PK) model simultaneously describing plasma and intracellular PBMC pharmacokinetics. Furthermore, we explored exposure-response relationships and simulated alternative dosing regimens. Patients and methods: A population PK model was developed with NONMEM, based on 339 plasma and 194 PBMC miltefosine concentrations from Colombian cutaneous leishmaniasis patients [29 children (2-12 years old) and 22 adults] receiving 1...
May 10, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29752702/daylight-photodynamic-therapy-for-actinic-keratoses
#11
REVIEW
Colin A Morton, Lasse R Braathen
Topical photodynamic therapy (PDT) using daylight is effective in the treatment of actinic keratoses (AKs), offering the potential for treatment of large fields such as full face and balding scalp, but with minimal therapy-associated pain. Comparison with conventional PDT indicates similar efficacy for thin and moderate-thickness AKs, but with significantly less discomfort/pain, driving a patient preference for daylight-mediated PDT (DL-PDT) compared with conventional PDT using high-intensity office/hospital-based light sources...
May 11, 2018: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/29751117/cell-death-mechanisms-in-leishmania-amazonensis-triggered-by-methylene-blue-mediated-antiparasitic-photodynamic-therapy
#12
Débora P Aureliano, José Angelo Lauletta Lindoso, Sandra Regina de Castro Soares, Cleusa Fumika Hirata Takakura, Thiago Martini Pereira, Martha Simões Ribeiro
Antiparasitic photodynamic therapy (ApPDT) is an emerging approach to manage cutaneous leishmaniasis (CL) since no side effects, contraindications and parasite resistance have been reported. In addition, methylene blue (MB) is a suitable photosensitizer to mediate ApPDT on CL. In this study we aimed to look for the best parameters to eradicate Leishmania amazonensis and investigated the cell death pathways involved in MB-mediated ApPDT. MB uptake by parasites was determined using different MB concentrations (50, 100, 250 and 500 μM) and incubation times (10, 30 and 60 min)...
May 8, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29745300/wsp-based-analysis-of-wolbachia-strains-associated-with-phlebotomus-papatasi-and-p-sergenti-diptera-psychodidae-main-cutaneous-leishmaniasis-vectors-introduction-of-a-new-subgroup-wserg
#13
Fateh Karimian, Hassan Vatandoost, Yavar Rassi, Naseh Maleki-Ravasan, Nayyereh Choubdar, Mona Koosha, Kourosh Arzamani, Eslam Moradi-Asl, Arshad Veysi, Hamzeh Alipour, Manouchehr Shirani, Mohammad Ali Oshaghi
Sand flies of Phlebotomus papatasi and P. sergenti are the main vectors of cutaneous leishmanisis (CL) in the old world. We aimed to screen Iranian P. papatasi and P. sergenti for their natural infections with Wolbachia and to determine their phylogenetic association with other species. Wolbachia surface protein (wsp) gene was PCR amplified from DNA extracted from Phlebotomus species, sequenced, and were analysed in combination with wsp sequences related to Phelebtominae and other insects. All Wolbachia-infecting Iranian sand flies of P...
May 10, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29743809/evaluation-of-regulatory-immune-response-in-skin-lesions-of-patients-affected-by-nonulcerated-or-atypical-cutaneous-leishmaniasis-in-honduras-central-america
#14
Gabriela Venicia Araujo Flores, Carmen Maria Sandoval Pacheco, Thaise Yumie Tomokane, Wilfredo Sosa Ochoa, Concepción Zúniga Valeriano, Claudia Maria Castro Gomes, Carlos Eduardo Pereira Corbett, Marcia Dalastra Laurenti
In Honduras, Leishmania (L.) infantum chagasi causes both visceral leishmaniasis (LV) and nonulcerated or atypical cutaneous leishmaniasis (NUCL). NUCL is characterized by mononuclear inflammatory infiltration of the dermis, composed mainly of lymphocytes followed by macrophages with discrete parasitism. Considering that little is known about the pathogenesis of NUCL, the aim of this study was to evaluate the regulatory response in situ in skin lesions of patients affected by NUCL. Biopsies ( n = 20) from human cutaneous nonulcerative lesions were collected and processed by usual histological techniques...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29740446/antigenicity-of-leishmania-activated-c-kinase-antigen-lack-in-human-peripheral-blood-mononuclear-cells-and-protective-effect-of-prime-boost-vaccination-with-pci-neo-lack-plus-attenuated-lack-expressing-vaccinia-viruses-in-hamsters
#15
Laura Fernández, Eugenia Carrillo, Lucas Sánchez-Sampedro, Carmen Sánchez, Ana Victoria Ibarra-Meneses, M Angeles Jimenez, Valter Dos Anjos Almeida, Mariano Esteban, Javier Moreno
Leishmania -activated C-kinase antigen (LACK) is a highly conserved protein among Leishmania species and is considered a viable vaccine candidate for human leishmaniasis. In animal models, prime-boost vaccination with LACK-expressing plasmids plus attenuated vaccinia viruses (modified vaccinia Ankara [MVA] and mutant M65) expressing LACK, has been shown to protect against cutaneous leishmaniasis (CL). Further, LACK demonstrated to induce the production of protective cytokines in patients with active CL or cured visceral leishmaniasis, as well as in asymptomatic individuals from endemic areas...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29733808/investigation-of-anti-leishmanial-efficacy-of-miltefosine-and-ketoconazole-loaded-on-nanoniosomes
#16
R Nazari-Vanani, R Dehdari Vais, F Sharifi, N Sattarahmady, K Karimian, M H Motazedian, H Heli
Leishmaniasis is a group of parasitic disease caused by protozoa of Leishmania genus. Leishmania major accounts for the cutaneous leishmaniasis (CL). The current treatments of this disease are expensive with high toxicity and are associated to difficulties of healing and parasite resistance. Miltefosine and ketoconazole have been found to be effective against CL. In this study, miltefosine- and ketoconazole-loaded nanoniosomes were prepared by the thin film-hydration method, and their anti-leishmanial effects against Leishmania major promastigotes and amastigotes were evaluated...
May 4, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29732996/targeting-trypanothione-reductase-of-leishmanial-major-to-fight-against-cutaneous-leishmaniasis
#17
Abdul Aziz A Bin Dukhyil
BACKGROUND: 1.2-2.0 million cases of leishmaniasis occur annually throughout the world. The available drugs like Amphotericin B, antimonials and miltefosine are unable to fulfill the need due less effectiveness, high toxicity, resistance, high cost and complex route of administration. Leishmania survives inside the macrophages through different evasion mechanisms; one of that is activation of its trypanothione reductase enzyme which neutralizes the reactive oxygen species generated inside the macrophages to kill the parasites...
May 2, 2018: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/29723281/immunity-to-lulohya-and-lundep-the-salivary-spreading-factors-from-lutzomyia-longipalpis-protects-against-leishmania-major-infection
#18
Ines Martin-Martin, Andrezza Campos Chagas, Anderson B Guimaraes-Costa, Laura Amo, Fabiano Oliveira, Ian N Moore, Thiago S DeSouza-Vieira, Elda E Sanchez, Montamas Suntravat, Jesus G Valenzuela, Jose M C Ribeiro, Eric Calvo
Salivary components from disease vectors help arthropods to acquire blood and have been shown to enhance pathogen transmission in different model systems. Here we show that two salivary enzymes from Lutzomyia longipalpis have a synergist effect that facilitates a more efficient blood meal intake and diffusion of other sialome components. We have previously shown that Lundep, a highly active endonuclease, enhances parasite infection and prevent blood clotting by inhibiting the intrinsic pathway of coagulation...
May 3, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29722820/leishmania-viannia-guyanensis-in-tegumentary-leishmaniasis
#19
Arissa Felipe Borges, Rodrigo Saar Gomes, Fátima Ribeiro-Dias
Leishmania (Viannia) guyanensis is a causal agent of American tegumentary leishmaniasis (ATL). This protozoan has been poorly investigated; however, it can cause different clinical forms of ATL, ranging from a single cutaneous lesion to severe lesions that can lead to destruction of the nasopharyngeal mucosa. L. (V.) guyanensis and the disease caused by this species can present unique aspects revealing the need to better characterize this parasite species to improve our knowledge of the immunopathological mechanisms and treatment options for ATL...
June 1, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29716641/real-time-pcr-applications-for-diagnosis-of-leishmaniasis
#20
REVIEW
Luca Galluzzi, Marcello Ceccarelli, Aurora Diotallevi, Michele Menotta, Mauro Magnani
Leishmaniasis is a vector-borne disease caused by many Leishmania species, which can infect both humans and other mammals. Leishmaniasis is a complex disease, with heterogeneous clinical manifestations ranging from asymptomatic infections to lesions at cutaneous sites (cutaneous leishmaniasis), mucosal sites (mucocutaneous leishmaniasis) or in visceral organs (visceral leishmaniasis), depending on the species and host characteristics. Often, symptoms are inconclusive and leishmaniasis can be confused with other co-endemic diseases...
May 2, 2018: Parasites & Vectors
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