نتایج جستجو برای: infantum
تعداد نتایج: 2207 فیلتر نتایج به سال:
Leishmania infantum is the etiologic agent of visceral leishmaniasis (VL) in the Americas, Mediterranean basin and West and Central Asia. Although the geographic structure of L. infantum populations from the Old World have been described, few studies have addressed the population structure of this parasite in the Neotropical region. We employed 14 microsatellites to analyze the population struc...
A gp63PCR method was evaluated for the detection and characterization of Leishmania (Leishmania) (L.) parasites in canine lymph node aspirates. This tool was tested and compared to other PCRs based on the amplification of 18S ribosomal genes, a L. infantum specific repetitive sequence and kinetoplastic DNA minicircles, and to classical parasitological (smear examination and/or culture) or serol...
Visceral leishmaniasis is a severe form of the disease, caused by Leishmania infantum in the New World. Patients present an anergic immune response that favors parasite establishment and spreading through tissues like bone marrow and liver. On the other hand, Leishmania braziliensis causes localized cutaneous lesions, which can be self-healing in some individuals. Interactions between host and ...
BACKGROUND Visceral leishmaniasis due to Leishmania infantum is currently spreading into new foci across Europe. Leishmania infantum transmission in the Old World was reported to be strongly associated with a few specific environments. Environmental changes due to global warming or human activity were therefore incriminated in the spread of the disease. However, comprehensive studies were lacki...
Currently the universally accepted standard procedure for characterizing and identifying strains of Leishmania is isoenzyme analysis. However, in the Mediterranean area, despite their very wide geographical distribution, most Leishmania infantum strains belong to zymodeme MON-1. In order to increase our understanding of polymorphism in strains of L. infantum, we developed PCR assays amplifying ...
BACKGROUND Visceral leishmaniasis (VL) caused by Leishmania infantum is characterised by the loss of the ability of the host to generate an effective immune response. Chemokines have a direct involvement in the pathogenesis of leishmaniasis, causing a rapid change in the expression of these molecules during infection by Leishmania. OBJECTIVES Herein, it was investigated the role of CXCL10 in ...
BACKGROUND Leishmaniasis is a major parasitic disease in the tropical regions. However, Leishmania infantum has recently emerged as a very important cause of opportunistic infections for individuals positive for human immunodeficiency virus (HIV). However, there is a lack of in vitro tests for assessing the effect of anti-parasitic drugs on the viability and proliferation of Leishmania infantum...
Between 1988 and 1998, 258 Leishmania strains from patients infected with HIV were characterized by iso-enzyme electrophoresis at the Istituto Superiore di Sanità (ISS) in Rome. Most (227) of the isolates came from 80 Italian patients with visceral leishmaniasis (VL), the rest from cases of Leishmania/HIV co-infection in other Mediterranean countries. Every strain was found to be Leishmania inf...
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