Track topics on Twitter Track topics that are important to you
Schistosomiasis is one of the most significant neglected tropical diseases, affecting around 260 million people worldwide, and Praziquantel is currently the only available drug for the treatment of infected persons. Thus, the search for new schistosomicidal compounds is urgent. The objective of this study was to investigate of the schistosomicidal effect of barbatic acid, a lichen metabolite, on adult worms of Schistosoma mansoni. The in vitro schistosomicidal effect was evaluated through the assessment of motility and mortality, cellular viability of the worms and ultrastructural analysis through scanning electron microscopy. To evaluate the cytotoxicity of barbatic acid, a cell viability assay was performed with human peripheral blood mononuclear cells. Barbatic acid showed a schistosomicidal effect after 3 h of exposure. At the end of 24 h the concentrations of 50-200 μM presented lethality on the worms. Motility changes were observed at sublethal concentrations. The IC obtained by the cell viability assay for S. mansoni was 99.43 μM. Extensive damage to the worm's tegument was observed from 25 μM. No cytotoxicity was observed on human peripheral blood mononuclear cells. This report provides data showing the schistosomicidal effect of barbatic acid on S. mansoni, causing death, motility changes and ultrastructural damage to worms. In addition, barbatic acid was shown to be non-toxic to human peripheral blood mononuclear cells at concentrations that are effective against S. mansoni.
This article was published in the following journal.
Name: Toxicology in vitro : an international journal published in association with BIBRA
Chemical investigation of the lichen led to isolate nine compounds including a new hopane derivative, 1-acetoxy-21-hopane-3,22-diol () together with six phenolic compounds naming divaricatinic acid (...
Rotavirus is one of the leading causes of severe acute gastroenteritis in children under five years of age, mainly affecting developing countries. Once the disease is acquired, no specific treatment i...
Four new metabolites, 4--citreoviridin (), auransterol (), and two analogues ( and ) of paxisterol (), together with two known metabolites (15*,20*)-dihydroxyepisterol () and (), were isolated from cu...
Cancer is a global disease of great importance, and the need for novel cytotoxic drugs is still eminent. A series of spermine amides of several selected triterpene acids (betulonic, heterobetulonic, o...
Seven previously undescribed sesquiterpene lactones, three known sesquiterpene lactones (ixerin D, 15-p-hydroxyphenylacetyllactucin, and 15-p-hydroxyphenylacetyllactucin-8-sulfate), and two known quin...
There are currently no effective treatments for lichen planus pigmentosus (LPP) and erythema dyschromicum perstans (EDP). Tranexamic acid, which may downregulate pigmentation through a red...
Lichen planus is a chronic cutaneous and mucosal disease characterized by the infiltration of cluster of differentiation (CD) CD8 T lymphocytes, localized under the basal membrane and asso...
This is a research study whose purpose is to test the effectiveness of etanercept (Enbrel) in the treatment of moderate to severe lichen planus. No studies have been done on the effective...
A randomised controlled trial of Lichen Sclerosus in a period of six months measuring Quality of Life and sexuality among women with Lichen Sclerosus.
The lichen planus is a mucocutaneous disease of unknown etiology with an incidence of 1-2%, that affects in 30-70% of cases either the mucosa of the mouth, or partly in combination with in...
The concentration of a compound needed to reduce population growth of organisms, including eukaryotic cells, by 50% in vitro. Though often expressed to denote in vitro antibacterial activity, it is also used as a benchmark for cytotoxicity to eukaryotic cells in culture.
Atrophy and shriveling of the SKIN of the VULVA that is characterized by the whitish LICHEN SCLEROSUS appearance, inflammation, and PRURITUS.
A chronic inflammatory mucocutaneous disease usually affecting the female genitalia (VULVAR LICHEN SCLEROSUS) and BALANITIS XEROTICA OBLITERANS in males. It is also called white spot disease and Csillag's disease.
Oral lesions accompanying cutaneous lichen planus or often occurring alone. The buccal mucosa, lips, gingivae, floor of the mouth, and palate are usually affected (in a descending order of frequency). Typically, oral lesions consist of radiating white or gray, velvety, threadlike lines, arranged in a reticular pattern, at the intersection of which there may be minute, white, elevated dots or streaks (Wickham's striae). (Jablonski, Illustrated Dictionary of Dentistry)
Double-stranded nucleic acid molecules (DNA-DNA or DNA-RNA) which contain regions of nucleotide mismatches (non-complementary). In vivo, these heteroduplexes can result from mutation or genetic recombination; in vitro, they are formed by nucleic acid hybridization. Electron microscopic analysis of the resulting heteroduplexes facilitates the mapping of regions of base sequence homology of nucleic acids.
Tropical Medicine is the study of diseases more commonly found in tropical regions than elsewhere. Examples of these diseases are malaria, yellow fever, Chagas disease, Dengue, Helminths, African trypanosomiasis, Leishmaniasis, Leprosy, Lymphatic filaria...
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...