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cutanous leishmaniasis treatment

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https://www.readbyqxmd.com/read/28738234/m1-homeopathic-complex-trigger-effective-responses-against-leishmania-l-amazonensis-in-vivo-and-in-vitro
#1
Katia Fialho Nascimento, Fabiana Rodrigues de Santana, Cleber Rafael Vieira da Costa, Vanessa Kaplum, Helito Volpato, Celso Vaturo Nakamura, Leoni Villano Bonamin, Dorly de Freitas Buchi
Leishmaniasis is a term referring to a range of clinical conditions caused by protozoan parasites of the genus Leishmania, Trypanosomatidae family, Kinetoplastida order that is transmitted by the bite of certain species of mosquitoes Phlebotominae subfamily. These parasites infect hosts wild and domestic mammals, considered as natural reservoirs and can also infect humans. Leishmania are obligate intramacrophage protozoa that have exclusively intracellular life style. This suggests that the amastigotes possess mechanisms to avoid killing by host cells...
July 21, 2017: Cytokine
https://www.readbyqxmd.com/read/28715422/unraveling-the-genetic-diversity-and-phylogeny-of-leishmania-rna-virus-1-strains-of-infected-leishmania-isolates-circulating-in-french-guiana
#2
Sourakhata Tirera, Marine Ginouves, Damien Donato, Ignacio S Caballero, Christiane Bouchier, Anne Lavergne, Eliane Bourreau, Emilie Mosnier, Vincent Vantilcke, Pierre Couppié, Ghislaine Prevot, Vincent Lacoste
INTRODUCTION: Leishmania RNA virus type 1 (LRV1) is an endosymbiont of some Leishmania (Vianna) species in South America. Presence of LRV1 in parasites exacerbates disease severity in animal models and humans, related to a disproportioned innate immune response, and is correlated with drug treatment failures in humans. Although the virus was identified decades ago, its genomic diversity has been overlooked until now. METHODOLOGY/PRINCIPLES FINDINGS: We subjected LRV1 strains from 19 L...
July 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28712122/clinical-features-and-treatment-response-of-cutaneous-leishmaniasis-in-north-west-ethiopia
#3
Helina Fikre, Rezika Mohammed, Saba Atinafu, Johan van Griensven, Ermias Diro
OBJECTIVE: Cutaneous leishmaniasis (CL) receives far less attention than visceral leishmaniasis. Nevertheless, CL is predominantly caused by a unique species in Ethiopia (L aethiopica), which is known to cause severe forms such as diffuse (DCL) and mucocutaneous leishmaniasis (MCL). We report on the number and type of CL cases diagnosed, the clinical features, the treatments and treatment outcomes in North-West Ethiopia. METHODS: This is a retrospective chart record analysis of CL patients treated at the Leishmania Research and Treatment Center (LRTC) of the University of Gondar, Ethiopia...
July 16, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28704369/clinical-and-parasitological-factors-in-parasite-persistence-after-treatment-and-clinical-cure-of-cutaneous-leishmaniasis
#4
Alvaro J Martínez-Valencia, Carlos Frisherald Daza-Rivera, Mariana Rosales-Chilama, Alexandra Cossio, Elkin J Casadiego Rincón, Mayur M Desai, Nancy Gore Saravia, María Adelaida Gómez
BACKGROUND: The determinants of parasite persistence or elimination after treatment and clinical resolution of cutaneous leishmaniasis (CL) are unknown. We investigated clinical and parasitological parameters associated with the presence and viability of Leishmania after treatment and resolution of CL caused by L. Viannia. METHODS: Seventy patients who were treated with meglumine antimoniate (n = 38) or miltefosine (n = 32) and cured, were included in this study...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28690662/parasite-killing-of-leishmania-v-braziliensis-by-standardized-propolis-extracts
#5
Jéssica Rebouças-Silva, Fabiana S Celes, Jonilson Berlink Lima, Hernane S Barud, Camila I de Oliveira, Andresa A Berretta, Valéria M Borges
Treatments based on antimonials to cutaneous leishmaniasis (CL) entail a range of toxic side effects. Propolis, a natural compound widely used in traditional medical applications, exhibits a range of biological effects, including activity against infectious agents. The aim of this study was to test the potential leishmanicidal effects of different propolis extracts against Leishmania (Viannia) braziliensis promastigotes and intracellular amastigotes in vitro. Stationary-phase L. (V) braziliensis promastigotes were incubated with medium alone or treated with dry, alcoholic, or glycolic propolis extract (10, 50, or 100 μg/mL) for 96 h...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28687071/recurrence-of-visceral-and-muco-cutaneous-leishmaniasis-in-a-patient-under-immunosuppressive-therapy
#6
Gilles Darcis, Gert Van der Auwera, Jean-Baptiste Giot, Marie-Pierre Hayette, Françoise Tassin, Jorge Arrese Estrada, Lieselotte Cnops, Michel Moutschen, Laurence de Leval, Philippe Leonard
BACKGROUND: Leishmaniasis is a protozoan disease caused by parasites of the genus Leishmania, transmitted to humans by sandflies. The diagnosis of leishmaniasis is often challenging as it mimics many other infectious or malignant diseases. The disease can present in three ways: cutaneous, mucocutaneous, or visceral leishmaniasis, which rarely occur together or consecutively. CASE PRESENTATION: The patient was a 52 years old immunosuppressed Belgian woman with a long history of severe rheumatoid arthritis...
July 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28686398/-leishmaniasis-an-infection-of-travellers-and-migrants
#7
Lena Jessen, Benoît Bard, Xavier Grenon, Frank Bally
Leishmaniasis is an infection of the tropical to temperate zone, occasionally imported in our regions by travellers and migrants. Leishmania parasites are transmitted by the sting of a sand fly, Phlebotomus or Lutzomyia, and causes two clinical syndromes with either cutaneous, also mucosal, or disseminated involvement. Clinical suspicion needs a confirmation by the detection of the parasite. The treatment is adapted to the patient, the clinical presentation, the region, the species and the availability. Cutaneous leishmaniasis can be observed only or treated by topical or systemic regimens...
October 12, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28668672/amiodarone-and-itraconazole-improve-the-activity-of-pentavalent-antimonial-in-the-treatment-of-experimental-cutaneous-leishmaniasis
#8
Laís Anversa, Monique Gomes Salles Tiburcio, Lara Rocha Batista, Marília Beatriz Cuba, Gabriel Antonio Nogueira Nascentes, Tábata Yamasaki Martins, Virgínia Bodelão Richini Pereira, Luciana da Silva Ruiz Menezes, Valdo José Dias da Silva, Luis Eduardo Ramirez
Leishmaniasis affect millions of people, causing morbidity and mortality, especially in developing tropical and subtropical countries. Unfortunately, the possibilities of treatment for these infections are still quite limited and most of the available drugs present serious side effects. The objective of this paper was to evaluate the therapeutic role of amiodarone and itraconazole in the treatment of cutaneous leishmaniasis caused by Leishmania (Leishmania) amazonensis. In order to perform this evaluation, hamsters were infected with 1 x 10(6) metaciclic promastigotes of the parasite in the hind footpad and, after the onset of the lesions, were treated with glucantime, amiodarone, itraconazole, glucantime and amiodarone, glucantime and itraconazole or amiodarone and itraconazole...
June 28, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28665162/the-effect-of-pulsed-dye-laser-on-cutaneous-leishmaniasis-and-its-impact-on-the-dermatology-life-quality-index
#9
Mohamed L Elsaie, Shady M Ibrahim
BACKGROUND AND OBJECTIVE: Cutaneous leishmaniasis is a skin condition of prevalence especially in the Middle Eastern region. The Pulsed dye laser (PDL) has not been thoroughly evaluated for treatment of cutaneous leishmaniasis (CL). We assessed primarily the efficacy of 595nm PDL in the treatment of CL lesions and interpreted its impact on the quality of life of affected patients as measured by the Dermatology Life Quality Index (DLQI). PATIENTS AND METHODS: 25 lesions from 12 patients were treated with a single pass of PDL over the whole lesions to develop a purpuric end point...
June 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28662432/cathelicidin-augments-vdr-dependent-anti-leishmanial-immune-response-in-indian-post-kala-azar-dermal-leishmaniasis
#10
Sushmita Das, Abul Hasan Sardar, Kumar Abhishek, Ajay Kumar, Vidya Nand Rabidas, Pradeep Das
OBJECTIVES: Indian Post kala-azar dermal leishmaniasis (PKDL) is the cutaneous aftermath of visceral leishmaniasis (VL) caused by L. donovani. Vitamin D-regulated cationic antimicrobial peptide cathelicidin (hCAP-18/LL-37) has microbicidal and immunomodulatory role against cutaneous infections, but its role in PKDL remains elusive. METHODS: Skin snips and blood-derived monocytes of PKDL patients (n=46), before (BT) and after (AT) chemotherapy, were used for this study...
June 26, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28654013/in-vitro-anti-leishmanial-activity-of-essential-oils-extracted-from-vietnamese-plants
#11
Thanh Binh Le, Claire Beaufay, Duc Trong Nghiem, Marie-Paule Mingeot-Leclercq, Joëlle Quetin-Leclercq
Leishmania mexicana is one of the pathogens causing cutaneous leishmaniasis which is associated with patient morbidity. In our researches for new safe and effective treatments, thirty-seven essential oils (EOs) extracted from Vietnamese plants were screened in vitro for the first time on Leishmania mexicana mexicana(Lmm) promastigotes at the maximum concentration of 50 nL/mL. Active EOs were also analyzed for cytotoxicity on mammalian cell lines (WI38, J774) and their selectivity indices (SI) were calculated...
June 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28653597/lipid-core-nanocapsules-increase-the-oral-efficacy-of-quercetin-in-cutaneous-leishmaniasis
#12
A J Sousa-Batista, F S Poletto, C I M S Philipon, S S Guterres, A R Pohlmann, B Rossi-Bergmann
New oral treatments are needed for all forms of leishmaniasis. Here, the improved oral efficacy of quercetin (Qc) and its penta-acetylated derivative (PQc) was evaluated in cutaneous leishmaniasis after encapsulation in lipid-core nanocapsules (LNCs) of poly(ε-caprolactone). Leishmania amazonensis-infected BALB/c mice were given 51 daily oral doses of free drugs (16 mg kg-1) or LNC-loaded drugs (0·4 mg kg-1). While treatment with free Qc reduced the lesion sizes and parasite loads by 38 and 71%, respectively, LNC-Qc produced 64 and 91% reduction, respectively...
June 27, 2017: Parasitology
https://www.readbyqxmd.com/read/28649370/leishmaniasis-a-review
#13
REVIEW
Edoardo Torres-Guerrero, Marco Romano Quintanilla-Cedillo, Julieta Ruiz-Esmenjaud, Roberto Arenas
Leishmaniasis is caused by an intracellular parasite transmitted to humans by the bite of a sand fly. It is endemic in Asia, Africa, the Americas, and the Mediterranean region. Worldwide, 1.5 to 2 million new cases occur each year, 350 million are at risk of acquiring the disease, and leishmaniasis causes 70,000 deaths per year. Clinical features depend on the species of Leishmania involved and the immune response of the host. Manifestations range from the localized cutaneous to the visceral form with potentially fatal outcomes...
2017: F1000Research
https://www.readbyqxmd.com/read/28641584/crotoxin-stimulates-an-m1-activation-profile-in-murine-macrophages-during-leishmania-amazonensis-infection
#14
L H S Farias, A P D Rodrigues, E C Coêlho, M F Santos, S C Sampaio, E O Silva
American tegumentary leishmaniasis is caused by different species of Leishmania. This protozoan employs several mechanisms to subvert the microbicidal activity of macrophages and, given the limited efficacy of current therapies, the development of alternative treatments is essential. Animal venoms are known to exhibit a variety of pharmacological activities, including antiparasitic effects. Crotoxin (CTX) is the main component of Crotalus durissus terrificus venom, and it has several biological effects. Nevertheless, there is no report of CTX activity during macrophage - Leishmania interactions...
June 23, 2017: Parasitology
https://www.readbyqxmd.com/read/28630867/potential-challenges-of-controlling-leishmaniasis-in-sri-lanka-at-a-disease-outbreak
#15
REVIEW
Tharaka Wijerathna, Nayana Gunathilaka, Kithsiri Gunawardana, Wasana Rodrigo
The present works reviewed the existing information on leishmaniasis in Sri Lanka and in other countries, focusing on challenges of controlling leishmaniasis in the country, in an outbreak. Evidence from recent studies suggests that there is a possibility of a leishmaniasis outbreak in Sri Lanka in the near future. Difficulty of early diagnosis due to lack of awareness and unavailability or inadequacy of sensitive tests are two of the main challenges for effective case management. Furthermore, the absence of a proper drug for treatment and lack of knowledge about vector biology, distribution, taxonomy and bionomics, and reservoir hosts make the problem serious...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28630182/study-of-biodistribution-and-in-vivo-anti-leishmanial-activity-of-a-distigmasterylhemisuccinoyl-glycero-phosphocholine-liposome-intercalated-amphotericin-b
#16
Maryam Iman, Zhaohua Huang, Seyedeh Hoda Alavizadeh, Francis C Szoka, Mahmoud R Jaafari
Distigmasterylhemisuccinoyl-sn-glycero-3- phosphocholine (DSHemsPC) is a new lipid in which two molecules of stigmasterol (an inexpensive plant sterol) are covalently linked via a succinic acid to glycerophosphocholine. Our previous study revealed that a liposome-intercalated Amphotericin B prepared from DSHemsPC (DSHemsPC-Lip-AmB) possess excellent colloidal properties and in vitro antifungal and anti-leishmanial activity similar to AmBisome™. The aim of this study was to determine biodistribution and evaluate the anti-leishmanial effects of DSHemsPC-Lip-AmB in Leishmania major-infected BALB/c mice...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28616411/identification-of-etiologic-agents-of-cutaneous-leishmaniasis-in-palpebral-position-followed-by-effective-therapy
#17
Sedigheh Saberi, Reza Arjmand, Ali Khamesipour, Mohammad Ali Nilforoushzadeh, Shaghayegh Sayareh, Seyed Hossein Hejazi
CONTEXT: Cutaneous Leishmaniasis (CL) is a self-healing lesion but prevention of complications and involvement of vital organs such as palpebra requires proper treatment. AIMS: The main objectives were to detect agents of CL in palpebral region and estimate the proportion of palpebral lesion also possible complications among CL patients in a zoonotic CL endemic area. SETTINGS AND DESIGN: The study was performed from April 2012 to March 2013 in a total of 1613 CL suspected patients by interview and physically exam...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28607026/efficacy-of-a-paromomycin-plus-chloroquine-combination-therapy-in-experimental-cutaneous-leishmaniasis
#18
Gert-Jan Wijnant, Katrien Van Bocxlaer, Vanessa Yardley, Sudaxshina Murdan, Simon Croft
The 4-aminoquinoline chloroquine (CQ) is clinically used in combination with doxycycline to cure chronic Q-fever, as it enhances the activity of the antibiotic against the causative Coxiella burnetii bacteria residing within macrophage phagolysosomes. As there is a similar cellular host-pathogen biology for Leishmania parasites, this study aimed to determine whether such an approach could be also the basis for a new, improved treatment for cutaneous leishmaniasis (CL). We have evaluated the in vitro and in vivo activity of combinations of CQ with standard drugs paromomycin (PM), miltefosine and amphotericin B against Leishmania major and Leishmania mexicana In 72-hour intracellular anti-leishmanial assays, outcomes were variable for different drugs...
June 12, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28602835/topical-treatment-with-nanoliposomal-amphotericin-b-reduces-early-lesion-growth-but-fails-to-induce-cure-in-an-experimental-model-of-cutaneous-leishmaniasis-caused-by-leishmania-mexicana
#19
Sanjay Varikuti, Steve Oghumu, Noushin Saljoughian, Marissa S Pioso, Bren E Sedmak, Ali Khamesipour, Abhay R Satoskar
Leishmania mexicana infection causes localized skin lesions that can lead to tissue damage and permanent disfigurement if not resolved. Currently, recommended treatments include intravenous administration of Amphotericin B, which is undesirable due to the associated cost and patient burden related to receiving regular injections. In this study, we evaluated the effect of topical treatment with a nanoliposomal formulation of Amphotericin B that is penetrable to the skin (SinaAmphoLeish 0.4%) in mice infected with L...
June 9, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28597089/vosalophen-a-vanadium-complex-with-a-stilbene-derivative-induction-of-apoptosis-autophagy-and-efficiency-in-experimental-cutaneous-leishmaniasis
#20
Patrícia de A Machado, Jessica O F Morais, Gustavo S G Carvalho, Wallace P Lima, Gilson C Macedo, Elizandra A Britta, Celso V Nakamura, Adilson D da Silva, Alexandre Cuin, Elaine S Coimbra
In our previous work, we demonstrated the promising in vitro effect of VOSalophen, a vanadium complex with a stilbene derivative, against Leishmania amazonensis. Its antileishmanial activity has been associated with oxidative stress in L. amazonensis promastigotes and L. amazonensis-infected macrophages. In the present study, the mechanism involved in the death of parasites after treatment with VOSalophen, as well as in vivo effect in the murine model cutaneous leishmaniasis, has been investigated. Promastigotes of L...
August 2017: Journal of Biological Inorganic Chemistry: JBIC
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