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African sleeping sickness is characterized by progressive central nervous system (CNS) involvement, leading to the so-called secondary or late stage in which there are widespread inflammatory changes with lymphoplasmocytic infiltration. A study was made of blood-brain barrier (BBB) integrity in the
Discovery of novel drug targets may lead to improved treatment of trypanosomiasis. We characterize here 2 gene products of Trypanosoma brucei that are essential for the growth of bloodstream form (BSF) parasites, as shown by RNA interference (RNAi)-mediated down-regulation of the individual mRNAs.
Potassium channels (K(+) channels) are members of one of the largest and most diverse families of membrane proteins, widely described from bacteria to humans. Their functions include voltage-membrane potential maintenance, pH and cell volume regulation, excitability, organogenesis and cell death.
BACKGROUND
Autoantibodies directed against specific neuronal antigens are found in a significant number of patients with gastrointestinal neuromuscular diseases (GINMDs) secondary to neoplasia. This study examined the presence of antineuronal antibodies in idiopathic GINMD and GINMD secondary to
The stage of human African trypanosomiasis (HAT) is important to define precisely as far as it is directly related to the type of treatment used. The beginning of the neurological involvement is difficult to find out because there is no known specific clinical or biological sign. This study is
K(+) channels play a vital homeostatic role in cells and abnormal activity of these channels can dramatically alter cell function and survival, suggesting that they might be attractive drug targets in pathogenic organisms. Pathogenic protozoa lead to diseases such as malaria, leishmaniasis,
This study aimed to provide the foundation for an integrative approach to the identification of the mechanisms underlying the response to infection with Trypanosoma congolense, and to identify pathways that have previously been overlooked. We undertook a large-scale gene expression analysis study
A simple, sensitive, selective and reproducible method based on anion-exchange liquid chromatography with post-column derivatisation was developed for the determination of eflornithine (2-difluoromethyl-DL-ornithine; DFMO) in human plasma and cerebrospinal fluid. The 1-alkylthio-2-alkyl-isoindoles
Trypanosoma cruzi is a parasitic protozoan that infects various species of domestic and wild animals, triatomine bugs and humans. It is the etiological agent of American trypanosomiasis, also known as Chagas Disease, which affects about 17 million people in Latin America and is emerging elsewhere in
Twelve new dithiaarsanes were evaluated for their in vitro and in vivo trypanocidal properties in regard to their three parent molecules, 4-amino-phenylarsenoxide, melarsenoxide, and 4-dansylamino-phenylarsenoxide. The most potent dithiaarsane, compound 2b, had a minimum effective concentration of
Apolipoprotein L1 (APOL1) protein is the human serum factor that protect human beings against Trypanosoma brucei brucei, the cause of trypanosomiasis. Subspecies of T b brucei that cause human sleeping sickness-T b gambiense and T b rhodesiense evolved molecular mechanisms that enabled them to evade
A sensitive high-performance liquid chromatographic method has been developed for the separation and quantitative estimation of melaminophenyl arsenical drugs used in the treatment of human and veterinary trypanosomiases. Five clinically relevant compounds (melarsoprol, melarsonyl potassium,