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https://www.readbyqxmd.com/read/28107873/situation-analysis-of-cutaneous-leishmaniasis-in-an-endemic-area-south-of-iran
#1
Mansour Nazari, Saman Nazari, Ahmad Ali Hanafi-Bojd, Ali Najafi, Sasan Nazari
OBJECTIVE: To update current situation of the cutaneous leishmaniasis (CL) in Kazerun County, southwest of Iran and to analyse the epidemiological aspects of the disease during 2005-2015. METHODS: Data on CL were obtained from the Health Center of Kazerun County, and then were analysed and mapped using SPSS and Arc GIS 10.3. RESULTS: A total of 700 cases of CL were recorded during the study period with an overall decreasing trend from 2005 to 2015...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28107871/forecasting-the-number-of-zoonotic-cutaneous-leishmaniasis-cases-in-south-of-fars-province-iran-using-seasonal-arima-time-series-method
#2
Mehdi Sharafi, Haleh Ghaem, Hamid Reza Tabatabaee, Hossein Faramarzi
OBJECTIVE: To predict the trend of cutaneous leishmaniasis and assess the relationship between the disease trend and weather variables in south of Fars province using Seasonal Autoregressive Integrated Moving Average (SARIMA) model. METHODS: The trend of cutaneous leishmaniasis was predicted using Mini tab software and SARIMA model. Besides, information about the disease and weather conditions was collected monthly based on time series design during January 2010 to March 2016...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28107861/antileishmanial-activities-of-caffeic-acid-phenethyl-ester-loaded-plga-nanoparticles-against-leishmania-infantum-promastigotes-and-amastigotes-in%C3%A2-vitro
#3
Emrah Sefik Abamor
OBJECTIVE: To investigate and compare the antileishmanial effects of CAPE and (CAPE)PLGA NPs on Leishmania infantum (L. infantum) promastigotes and amastigotes in vitro. METHODS: Efficacies of CAPE, (CAPE)PLGA NPs and free PLGA nanoparticles (NPs) on promastigotes were evaluated using MTT and promastigote count assays, and their anti-amastigote effects were determined via infection index analysis. Griess reaction was also performed to calculate nitric oxide production of macrophages exposed to investigated molecules...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28106921/evaluation-of-efficacy-of-impregnated-curtains-in-experimental-hen-houses-as-a-phlebotomine-control-tool-in-northeast-argentina
#4
M Manteca Acosta, M S Santini, A A Pérez, O D Salomón
The aim of this study was to evaluate the effectiveness of insecticide-impregnated curtains against the entry of phlebotomine (Diptera: Psychodidae) flies into experimental slatted hen houses in an area endemic for American cutaneous leishmaniasis (ACL). Three treatments in experimental dwellings containing three chickens each were applied using, respectively, an impregnated curtain (IC), a non-impregnated curtain (NIC) and no curtain (NC). A control site without chickens (WC) was included. The study used permethrin at 0...
January 20, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28106262/phlebotomine-sandfly-ecology-on-the-indian-subcontinent-does-village-vegetation-play-a-role-in-sandfly-distribution-in-bihar-india
#5
D M Poché, R M Poché, S Mukherjee, G A Franckowiak, L N Briley, D J Somers, R B Garlapati
Visceral leishmaniasis (VL) is a disease that results in approximately 50 000 human deaths annually. It is transmitted through the bites of phlebotomine sandflies and around two-thirds of cases occur on the Indian subcontinent. Indoor residual spraying (IRS), the efficacy of which depends upon sandfly adults resting indoors, is the only sandfly control method used in India. Recently, in Bihar, India, considerable sandfly numbers have been recorded outdoors in village vegetation, which suggests that IRS may control only a portion of the population...
January 20, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28103966/chemotherapy-of-leishmaniasis-present-challenges
#6
Silvia R B Uliana, Cristiana T Trinconi, Adriano C Coelho
Cutaneous and visceral leishmaniasis are amongst the most devastating infectious diseases of our time, affecting millions of people worldwide. The treatment of these serious diseases rely on a few chemotherapeutic agents, most of which are of parenteral use and induce severe side-effects. Furthermore, rates of treatment failure are high and have been linked to drug resistance in some areas. Here, we reviewed data on current chemotherapy practice in leishmaniasis. Drug resistance and mechanisms of resistance are described as well as the prospects for applying drug combinations for leishmaniasis chemotherapy...
January 20, 2017: Parasitology
https://www.readbyqxmd.com/read/28103263/splenic-cd4-t-cells-in-progressive-visceral-leishmaniasis-show-a-mixed-effector-regulatory-phenotype-and-impair-macrophage-effector-function-through-inhibitory-receptor-expression
#7
Audrie A Medina-Colorado, Elvia Y Osorio, Omar A Saldarriaga, Bruno L Travi, Fanping Kong, Heidi Spratt, Lynn Soong, Peter C Melby
Visceral leishmaniasis (VL), caused by infection with the intracellular protozoan Leishmania donovani, is a chronic progressive disease with a relentlessly increasing parasite burden in the spleen, liver and bone marrow. The disease is characterized by fever, splenomegaly, cachexia, and pancytopenia, and progresses to death if not treated. Control of Leishmania infection is mediated by Th1 (IFNγ-producing) CD4+ T cells, which activate macrophages to produce nitric oxide and kill intracellular parasites. However, despite expansion of CD4+ T cells and increased IFNγ expression in the spleen, humans with active VL do not control the infection...
2017: PloS One
https://www.readbyqxmd.com/read/28101315/vcam-1-and-icam-1-serum-levels-as-markers-of-relapse-in-visceral-leishmaniasis
#8
Alexandros Makis, Sophia Tsabouri, Paraskevi Karagouni, Maria Rogalidou, Irene Sionti, Nikolaos Chaliasos
No abstract text is available yet for this article.
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28099431/exacerbated-leishmaniasis-caused-by-a-viral-endosymbiont-can-be-prevented-by-immunization-with-its-viral-capsid
#9
Patrik Castiglioni, Mary-Anne Hartley, Matteo Rossi, Florence Prevel, Chantal Desponds, Daniel T Utzschneider, Remzi-Onur Eren, Haroun Zangger, Livia Brunner, Nicolas Collin, Dietmar Zehn, F Matthew Kuhlmann, Stephen M Beverley, Nicolas Fasel, Catherine Ronet
Recent studies have shown that a cytoplasmic virus called Leishmaniavirus (LRV) is present in some Leishmania species and acts as a potent innate immunogen, aggravating lesional inflammation and development in mice. In humans, the presence of LRV in Leishmania guyanensis and in L. braziliensis was significantly correlated with poor treatment response and symptomatic relapse. So far, no clinical effort has used LRV for prophylactic purposes. In this context, we designed an original vaccine strategy that targeted LRV nested in Leishmania parasites to prevent virus-related complications...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28098499/inhibition-of-leishmania-infantum-trypanothione-reductase-by-diaryl-sulfide-derivatives
#10
Francesco Saccoliti, Gabriella Angiulli, Giovanni Pupo, Luca Pescatori, Valentina Noemi Madia, Antonella Messore, Gianni Colotti, Annarita Fiorillo, Luigi Scipione, Marina Gramiccia, Trentina Di Muccio, Roberto Di Santo, Roberta Costi, Andrea Ilari
The study presented here aimed at identifying a new class of compounds acting against Leishmania parasites, the causative agent of Leishmaniasis. For this purpose, the thioether derivatives of our in-house library have been evaluated in whole-cell screening assays in order to determine their in vitro activity against Leishmania protozoan. Among them, promising results have been achieved with compound RDS 777 (6-(sec-butoxy)-2-((3-chlorophenyl)thio)pyrimidin-4-amine) (IC50 = 29.43 µM), which is able to impair the mechanism of the parasite defence against the reactive oxygen species by inhibiting the trypanothione reductase (TR) with high efficiency (Ki 0...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28098109/visceral-leishmaniasis-in-adults-with-nephropathy
#11
H Kaaroud El Jeri, A Harzallah, S Barbouch, M M Bacha, R Kheder, S Turki, S Trabelsi, E Abderrahim, F Ben Hamida, T Ben Abdallah
The aim of this study is to evaluate the features of visceral leishmaniasis (VL) in adults with nephropathy, who were not infected with the human immunodeficiency virus. This is a retrospective study of 14 adults hospitalized between 2000 and 2014, with VL and renal involvement. Clinical, biological, and therapeutic data were collected from the patients' medical files. Eleven women and three men, most of whom were from the North of the country, with a mean age of 40.5 years were studied. Lupus was present in five cases, the Sicca syndrome in three cases, diabetes in one case, renal failure on dialysis in two cases, and there were three renal transplant recipients...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28096850/expression-analysis-of-multiple-genes-may-involve-in-antimony-resistance-among-leishmania-major-clinical-isolates-from-fars-province-central-iran
#12
Nafiseh Ghobakhloo, Mohammad Hossein Motazedian, Majid Fardaei
BACKGROUND: Treatment of Cutaneous Leishmaniasis (CL) is being faced with serious difficulties in Fars Province, due to emerging of resistance against meglumine antimonite (Glucantime®). In this context, determining some biomarkers for drug sensitivity monitoring seems to be highly essential. Different studies have been carried out to decipher the genes might be involved in antimony resistant phenotype in Leishmania spp. Here, we selected three genes: AQP (as drug transporter), TDR-1-1(as drug activator), and γ-GCS (inducing reduction environment) for comparative expression analysis on clinical resistant and sensitive isolates of L...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096848/immunogenicity-and-efficacy-of-live-l-tarentolae-expressing-kmp11-ntgp96-gfp-fusion-as-a-vaccine-candidate-against-experimental-visceral-leishmaniasis-caused-by-l-infantum
#13
Vahid Nasiri, Abdolhossein Dalimi, Fatemeh Ghaffarifar, Azam Bolhassani
BACKGROUND: The aim of present study was to evaluate the protective efficacy of live recombinant L. tarentolae expressing KMP11-NTGP96-GFP fusion as candidates for live engineered recombinant vaccine against visceral leishmaniasis in BALB/c mice. METHODS: KMP-11 and NT-GP96 genes cloned into the pJET1.2/blunt cloning vector and then into pEGFP-N1 expression vector. The KMP-11, NT-GP96 and GFP fused in pEGFP-N1 and subcloned into Leishmanian pLEXSY-neo vector. Finally this construct was transferred to L...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096483/the-gut-microbiome-of-the-vector-lutzomyia-longipalpis-is-essential-for-survival-of-leishmania-infantum
#14
Patrick H Kelly, Sarah M Bahr, Tiago D Serafim, Nadim J Ajami, Joseph F Petrosino, Claudio Meneses, John R Kirby, Jesus G Valenzuela, Shaden Kamhawi, Mary E Wilson
: The vector-borne disease leishmaniasis, caused by Leishmania species protozoa, is transmitted to humans by phlebotomine sand flies. Development of Leishmania to infective metacyclic promastigotes in the insect gut, a process termed metacyclogenesis, is an essential prerequisite for transmission. Based on the hypothesis that vector gut microbiota influence the development of virulent parasites, we sequenced midgut microbiomes in the sand fly Lutzomyia longipalpis with or without Leishmania infantum infection...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28096399/antiviral-screening-identifies-adenosine-analogs-targeting-the-endogenous-dsrna-leishmania-rna-virus-1-lrv1-pathogenicity-factor
#15
F Matthew Kuhlmann, John I Robinson, Gregory R Bluemling, Catherine Ronet, Nicolas Fasel, Stephen M Beverley
The endogenous double-stranded RNA (dsRNA) virus Leishmaniavirus (LRV1) has been implicated as a pathogenicity factor for leishmaniasis in rodent models and human disease, and associated with drug-treatment failures in Leishmania braziliensis and Leishmania guyanensis infections. Thus, methods targeting LRV1 could have therapeutic benefit. Here we screened a panel of antivirals for parasite and LRV1 inhibition, focusing on nucleoside analogs to capitalize on the highly active salvage pathways of Leishmania, which are purine auxotrophs...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095796/a-severe-case-of-visceral-leishmaniasis-and-liposomal-amphotericin-b-treatment-failure-in-an-immunosuppressed-patient-15%C3%A2-years-after-exposure
#16
Anna Eichenberger, Annina E Buechi, Andreas Neumayr, Chistroph Hatz, Andri Rauch, Marc Huguenot, Eva Diamantis-Karamitopoulou, Cornelia Staehelin
BACKGROUND: Visceral leishmaniasis (VL) is a protozoan disease, which is responsible for 200.000-400.000 yearly infections worldwide. If left untreated, the fatality rate can be as high as 100% within 2 years. 90% of cases occur in just six countries: India, Bangladesh, Sudan, South Sudan, Ethiopia and Brazil. It is thus a disease rarely seen by physicians in Europe or North America. We report on the fatal case of VL in an 80-year-old immunosuppressed patient who presented with a latency of over 15 years after having visited an endemic region...
January 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28095666/epidemiological-investigation-of-asymptomatic-dogs-with-leishmania-infection-in-southwestern-china-where-visceral-leishmaniasis-is-intractable
#17
Gui-Hua Zhao, Kun Yin, Wei-Xia Zhong, Ting Xiao, Qing-Kuan Wei, Yong Cui, Gong-Zhen Liu, Chao Xu, Hong-Fa Wang
Heishui county, located in northwest Sichuan province, southwestern China, is an endemic area of zoonotic visceral leishmaniasis (VL) and is the most intractable area. VL is never destroyed in it. Asymptomatic dogs (Leishmania parasites have been diagnosed but clinically healthy) are considered to be a potential reservoir host in zoonotic VL area, and most can lead to infection of individuals, that is a new challenge for controlling VL in humans. The present study aimed to assess the Leishmania infection rate of asymptomatic dogs in Heishui county...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28095664/cutaneous-leishmaniasis-of-the-eyelids-a-case-series-with-molecular-identification-and-literature-review
#18
Iraj Mohammadpour, Mohammad Hossein Motazedian, Farhad Handjani, Gholam Reza Hatam
Cutaneous leishmaniasis (CL) is a protozoan disease which is endemic in Iran. It is transmitted by the Phlebotomus sand fly. The eyelid is rarely involved possibly because the movement of the lids impedes the sand fly from biting the skin in this region. Here, we report 6 rare cases of eyelid CL. The patients were diagnosed by skin scraping, culture, and PCR from the lesions. Skin scraping examination showed Leishmania spp. amastigotes in the cytoplasm of macrophages. Culture examination was positive for Leishmania spp...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28094163/granulomatous-histiocytic-dermatitides
#19
Mark R Wick
Granulomas of the skin may be classified in several ways. They are either infectious or non-infectious in character, and they contain areas of necrobiosis or necrosis, or not. Responsible infectious agents may be mycobacterial, fungal, treponemal, or parasitic organisms, and each case of granulomatous dermatitis should be assessed histochemically for those microbes. In the non-infectious group, examples of necrobiotic or necrotizing granulomas include granuloma annulare; necrobiosis lipoidica; rheumatoid nodule; and lupus miliaris disseminates faciei...
December 14, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28093539/leishmaniasis-in-thailand-a-review-of-causative-agents-and-situations
#20
REVIEW
Saovanee Leelayoova, Suradej Siripattanapipong, Jipada Manomat, Phunlerd Piyaraj, Peerapan Tan-Ariya, Lertwut Bualert, Mathirut Mungthin
Before 1999, leishmaniasis was considered an imported disease in Thailand. Since then, autochthonous leishmaniasis was reported in both immmunocompetent and immmunocompromised patients especially in human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS). A new species was identified and named as Leishmania siamensis consisting of two lineages, that is, lineages TR and PG. Analysis of isoenzymes has clarified the more commonly detected L. siamensis lineage PG as Leishmania martiniquensis (MON-229), a species originally reported from the Martinique Island, whereas the L...
January 16, 2017: American Journal of Tropical Medicine and Hygiene
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