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cutanous leishmaniasis

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https://www.readbyqxmd.com/read/28538896/periungual-tegumentary-leishmaniasis-a-diagnostic-challenge
#1
Bruna Morassi Sasso, Ana Beatriz Barbosa Torino, Andréa Fernandes Eloy da Costa França, Paulo Eduardo Neves Ferreira Velho
Periungual and paronychia-like skin lesions can mimic various diseases, setting up a diagnostic challenge that invariably requires correlation with complementary tests. We report a case of an ulcerated tumor of the nailfold diagnosed as leishmaniasis. Although paronychia-like cutaneous leishmaniasis is a rare variant, its epidemiological relevance in Brazil should prompt dermatologists to include it as a plausible diagnosis thus leading to correct work up and treatment.
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28538895/white-starburst-like-pattern-as-a-dermoscopic-clue-in-old-world-cutaneous-leishmaniasis
#2
Pablo Fernandez-Crehuet, Ricardo Ruiz-Villaverde
A 70-year-old woman was referred to our dermatological unit by her general practitioner last summer, with a history of a two-month ulcerated purplish lesion on her left arm that spread centrifugally and that unsuccessfully treated with topical corticosteroids. The dermoscopic evaluation revealed an erythematous macula with central ulceration that showed the characteristic called "white starburst-like pattern" and some vascular structures (dotted vessels, polymorphous⁄ atypical vessels). The diagnosis of cutaneous leishmaniasis was made after histopathologic analysis and polymerase chain reaction essay...
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28537873/leishmanial-dactylitis-an-unusual-clinical-presentation
#3
Nasrin Saki, Hamid Godarzi, Alireza Heiran
Cutaneous leishmaniasis (CL) is one of the most common endemic diseases in Iran. It has a diverse spectrum of clinical manifestations. Herein we present a woman with leishmanial dactylitis, which is a very rare clinical form of CL. Successful treatment consisted of parenteral pentavalent antimonials for two months. Leishmanial dactylitis can be easily misdiagnosed as bacterial or fungal infections, psoriasis, or even malignancies. Accordingly, it should be considered in the differential diagnosis of dactylitis in endemic areas and in travelers from endemic countries...
May 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28530056/-cutaneous-leishmaniasis-in-israel-2016-an-update
#4
REVIEW
Michal Solomon, Eli Schwartz
Leishmaniasis is endemic in Israel and is increasing in its frequency. The pathogens that cause cutaneous leishmaniasis (CL) in Israel are Leishmania major (L. major) and Leishmania tropica (L. tropica). In recent years, there have been significant changes in the distribution of these species. L. major is endemic mainly in the Negev, Arava and the Beit She'an Valley. L. tropica is endemic in Tiberias, northern Sea of Galilee, Samaria and in the vicinity of Jerusalem such as at Kfar Adumim, Ma'ale Adumim and Anathoth (north-east of Jerusalem)...
October 2016: Harefuah
https://www.readbyqxmd.com/read/28527882/new-epidemiological-pattern-of-cutaneous-leishmaniasis-in-two-pre-saharan-arid-provinces-southern-morocco
#5
Mouad Ait Kbaich, Idriss Mhaidi, Abdelkacem Ezzahidi, Nouredine Dersi, Adil El Hamouchi, Myriam Riyad, Khadija Akarid, Meryem Lemrani
Three Leishmania species are responsible of cutaneous leishmaniasis (CL) in Morocco. Zoonotic CL due to Leishmania major and Leishmania infantum, the first is known as established in the eastern arid regions, whereas the latter evolves sporadically, especially in the North. While Leishmania tropica, classically considered anthroponotic, is endemic in the semi-arid regions and is largely distributed throughout the country. The aim of this study was to identify the Leishmania species causing CL in two Provinces in arid pre-Saharan region known as zoonotic CL foci, and to contribute an update to the national data concerning the distribution of Leishmania species in both regions...
May 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28526427/atypical-presentations-of-cutaneous-leishmaniasis-a-systematic-review
#6
REVIEW
Camilla Barros Meireles, Laís Chaves Maia, Gustavo Coelho Soares, Ilara Parente Pinheiro Teodoro, Maria do Socorro Vieira Gadelha, Cláudio Gleidiston Lima da Silva, Marcos Antonio Pereira de Lima
Cutaneous Leishmaniasis (CL) is endemic in 88 countries, showing relevant prevalences. The aim of this study was to perform a systematic review on atypical lesions of CL around the world, addressing clinico-epidemiological, immunological and therapeutic aspects. A search of the literature was conducted via electronic databases Scopus and PubMed for articles published between 2010 and 2015. The search terms browsed were "cutaneous leishmaniasis", "atypical" and "unusual". Based on the eligibility criteria, 34 out of 122 articles were included in the final sample...
May 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28524774/cytotoxicity-and-anti-leishmania-amazonensis-activity-of-citrus-sinensis-leaf-extracts
#7
Andreza R Garcia, Ana Claudia F Amaral, Mariana M B Azevedo, Suzana Corte-Real, Rosana C Lopes, Celuta S Alviano, Anderson S Pinheiro, Alane B Vermelho, Igor A Rodrigues
CONTEXT: Leishmania amazonensis is the main agent of diffuse cutaneous leishmaniasis, a disease characterized by lesional polymorphism and the commitment of skin surface. Previous reports demonstrated that the Citrus genus possess antimicrobial activity. OBJECTIVE: This study evaluated the anti-L. amazonensis activity of Citrus sinensis (L.) Osbeck (Rutaceae) extracts. MATERIALS AND METHODS: Citrus sinensis dried leaves were subjected to maceration with hexane (CH), ethyl acetate (CEA), dichloromethane/ethanol (CD/Et - 1:1) or ethanol/water (CEt/W - 7:3)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28511275/direct-detection-of-leishmania-from-clinical-samples
#8
John N Waitumbi, Joshua Bast, Nancy Nyakoe, Charles Magiri, Miguel Quintana, Ratree Takhampunya, Anthony L Schuster, Marshall T Van de Wyngaerde, James C McAvin, Russell E Coleman
The ability to rapidly and accurately diagnose leishmaniasis is a military priority. Testing was conducted to evaluate diagnostic sensitivity and specificity of field-expedient Leishmania genus and visceral Leishmania specific dual-fluorogenic, hydrolysis probe (TaqMan), polymerase chain reaction assays previously established for use in vector surveillance. Blood samples of patients with confirmed visceral leishmaniasis and controls without the disease from Baringo District, Kenya, were tested. Leishmania genus assay sensitivity was 100% (14/14) and specificity was 84% (16/19)...
January 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28508745/natural-leishmania-viannia-infections-of-phlebotomines-diptera-psychodidae-indicate-classical-and-alternative-transmission-cycles-of-american-cutaneous-leishmaniasis-in-the-guiana-shield-brazil
#9
Adelson Alcimar Almeida de Souza, Iorlando da Rocha Barata, Maria das Graças Soares Silva, José Aprígio Nunes Lima, Yara Lúcia Lins Jennings, Edna Aoba Yassui Ishikawa, Ghislaine Prévot, Marine Ginouves, Fernando Tobias Silveira, Jeffrey Shaw, Thiago Vasconcelos Dos Santos
From 1996 to 1999 multi-trapping methods (Center of Diseases Control, CDC) light traps, light-baited Shannon traps, and aspiration on tree bases) were used to study the phlebotomine fauna of the "Serra do Navio" region of the Brazilian State of Amapá, which is part of the Guiana Shield. Fifty-three species were identified among 8,685 captured individuals. The following species, associated with the transmission of American cutaneous leishmaniasis in Amazonian Brazil, were captured: Nyssomyia umbratilis (3,388), Psychodopygus squamiventris maripaensis (995), Ny...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28507113/efficacy-of-a-binuclear-cyclopalladated-compound-therapy-for-cutaneous-leishmaniasis-in-the-murine-model-of-infection-with-leishmania-amazonensis-and-its-inhibitory-effect-on-topoisomerase-1b
#10
Angela Maria Arenas Velásquez, Willian Campos Ribeiro, Vutey Venn, Silvia Castelli, Mariana Santoro, Renata Pires de Assis, Rodrigo Alves de Souza, Aline Rimoldi Ribeiro, Thaís Gaban Passalaqua, João Aristeu da Rosa, Amanda Martins Baviera, Antonio Eduardo Mauro, Alessandro Desideri, Elmo Eduardo Almeida-Amaral, Marcia A S Graminha
Leishmaniasis is a disease found throughout the (sub)tropical parts of the world caused by protozoan parasites of the Leishmania genus. Despite the numerous problems associated with existing treatments, pharmaceutical companies continue to neglect the development of better ones. The high toxicity of current drugs combined with emerging resistance makes the discovery of new therapeutic alternatives urgent. Here we report the evaluation of a binuclear cyclopalladated complex containing Pd(II) and N,N' -dimethylbenzylamine (Hdmba) against Leishmania amazonensis...
May 15, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28507071/characterization-of-the-protein-tyrosine-phosphatase-lmprl-1-secreted-by-leishmania-major-via-the-exosome-pathway
#11
Sabine Leitherer, Joachim Clos, Elisabeth M Liebler-Tenorio, Ulrike Schleicher, Christian Bogdan, Didier Soulat
Similar to other intracellular pathogens, Leishmania parasites are known to evade the antimicrobial effector functions of host immune cells. To date, however, only few virulence factors have been described for Leishmania (L.) major, one of the causative agents of cutaneous leishmaniasis. Here, we characterized the expression and function of a L. major phosphatase which we termed LmPRL-1. This enzyme shows a strong structural similarity to the human phosphatases of regenerating liver (PRL-1, -2, and -3) that are regulating the proliferation, differentiation and motility of cells...
May 15, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28505264/geographical-information-systems-in-determination-of-cutaneous-leishmaniasis-spatial-risk-level-based-on-distribution-of-vector-species-in-imamoglu-province-adana
#12
Hakan Kavur, Ozan Artun
The Imamoglu district located in the southeast of Adana province in Turkey is an endemic focus of cutaneous leishmaniasis (CL) owing to dominancy of Phlebotomus tobbi, which is a probable vector of Leishmania infantum. About 11.26% of CL cases reported each year are from Imamoglu, Adana, and between 2008 and 2015, 223 cases of CL were reported. Leishmania infantum, which may be transmitted by P. tobbi, Phlebotomus neglectus/syriacus, and Phlebotomus perfiliewi, is referred as leishmaniasis factor in Adana. Thus, the aim of this study was to map the risk areas for each sand fly species using remote sensing images based on environmental factors and geographical characteristics...
May 13, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28504090/wound-healing-in-cutaneous-leishmaniasis-a-double-edged-sword-of-il-10-and-tgf-%C3%AE
#13
REVIEW
Amir Abdoli, Nahid Maspi, Fatemeh Ghaffarifar
Immune responses have a crucial role during the wound healing process in cutaneous leishmaniasis (CL). However, there are several paradoxes in immunity against CL. On the one hand, regulatory cytokines interleukin (IL)-10 and transforming growth factor beta (TGF-β) increase susceptibility to CL through suppression of several proinflammatory cytokines that require for defense against CL. On the other hand, these cytokines play a pivotal role in the acceleration of wound healing process. This review discusses about the dual role of IL-10 and TGF-β during the wound healing process and immunity against CL to offer a new insight about wound healing in CL...
April 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28500815/oral-pentoxifylline-associated-with-pentavalent-antimony-a-randomized-trial-for-cutaneous-leishmaniasis
#14
Graça Brito, Mayra Dourado, Luiz Henrique Guimarães, Everson Meireles, Albert Schriefer, Edgar Marcelino de Carvalho, Paulo Roberto Lima Machado
AbstractCutaneous leishmaniasis (CL) by Leishmania braziliensis is associated with decreasing cure rates in Brazil. Standard treatment with pentavalent antimony (Sb(v)) cures only 50-60% of the cases. The immunopathogenesis of CL ulcer is associated with high interferon-γ and tumor necrosis factor (TNF) production. Pentoxifylline, a TNF inhibitor, has been successfully used in association with Sb(v) in mucosal and cutaneous leishmaniasis. This randomized, double-blind, and placebo-controlled trial aimed to evaluate the efficacy and safety of oral pentoxifylline plus Sb(v) versus placebo plus Sb(v) in patients with CL in Bahia, Brazil...
May 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28499458/evaluation-of-a-multilocus-sequence-typing-mlst-scheme-for-leishmania-viannia-braziliensis-and-leishmania-viannia-panamensis-in-colombia
#15
Giovanny Herrera, Carolina Hernández, Martha S Ayala, Carolina Flórez, Aníbal A Teherán, Juan David Ramírez
BACKGROUND: Leishmaniases are parasitic vector-borne diseases affecting more than 12 million people in 98 countries. In Colombia, leishmaniasis is widespread and the most common clinical manifestation is cutaneous, mainly caused by L. panamensis and L. braziliensis. Currently, the genetic diversity of these species in Colombia is unknown. To address this, we applied molecular techniques for their characterization, using multilocus sequence typing (MLST) to explore the genetic variability and phylodynamics of the disease...
May 12, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28492171/eight-cases-of-cutaneous-leishmaniasis-due-to-leishmania-infantum-with-protean-presentation
#16
Damien Dupont, Alice Phan, François Durupt, François Peyron
No abstract text is available yet for this article.
May 9, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28485825/new-evidence-of-cutaneous-leishmaniasis-in-north-eastern-italy
#17
V Gaspari, M Ortalli, M P Foschini, C Baldovini, A Lanzoni, R Cagarelli, P Gaibani, G Rossini, C Vocale, R Tigani, G A Gentilomi, C Misciali, S Pesci, A Patrizi, M P Landini, S Varani
BACKGROUND: Human leishmaniasis is on increase the in Mediterranean Europe. However, the exact prevalence of cutaneous leishmaniasis (CL) is largely unknown as underdiagnosis and underreporting are common. OBJECTIVE: To evaluate epidemiological, clinico-pathological and microbiological aspects of CL cases occurring in the Bologna province, north-eastern Italy. METHODS: We performed a retrospective, observational study on CL cases diagnosed in the Bologna province between January 2013 and December 2015...
May 9, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28484104/design-of-treatments-for-cutaneous-and-visceral-leishmaniasis
#18
Simon Croft
No abstract text is available yet for this article.
2017: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/28483734/leishmaniasis-of-the-feet-sole-a-case-report
#19
Jamshid Ayatollahi, Ali Fattahi Bafghi, Seyed Hossein Shahcheraghi
Here we report the case of a patient with cutaneous leishmaniasis, who was referred to our clinic in Yazd, Iran. On examining the patient, who was a housekeeper, we found a small plaque in the palmoplantar region due to cutaneous leishmaniasis. She had not any history from an identical case in this patient. After treatment, the lesions improved.
March 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28476600/epidemic-outbreak-of-anthroponotic-cutaneous-leishmaniasis-in-kohat-district-khyber-pakhtunkhwa-pakistan
#20
Mubashir Hussain, Shahzad Munir, Muhammad Ameen Jamal, Sultan Ayaz, Muhammad Akhoundi, Kasbari Mohamed
An epidemiological and molecular study was carried out for the first time in Kohat District of Khyber Pakhtunkhwa (KP) province, Pakistan from April 2015 to May 2016 to determine the prevalence of Cutaneous Leishmaniasis (CL) in local population and Internally Displaced People (IDPs). In 13 different villages, a total of 1359 (out of 26,250 individuals belonging to local population) and 140 (out of 3615 IDPs residing in these villages) cases were recorded and 300 samples were collected. The total prevalence of CL in local population was 5...
May 2, 2017: Acta Tropica
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