نتایج جستجو برای: antileishmanial agent
تعداد نتایج: 254431 فیلتر نتایج به سال:
A number of 1'-substituted 9-anilinoacridines were evaluated for their activities against promastigote and amastigote forms of Leishmania major and for their toxicities to human Jurkat leukemia cells. Several compounds possessing 1'-NH-alkyl substituents produced more than 80% growth inhibition of macrophage-infected L. major amastigotes at or below a concentration of 1 microM. 1'-Hexylamino-9-...
Quantitative structure-activity relationship (QSAR) studies were performed in order to identify molecular features responsible for the antileishmanial activity of 61 adenosine analogues acting as inhibitors of the enzyme glyceraldehyde 3-phosphate dehydrogenase of Leishmania mexicana (LmGAPDH). Density functional theory (DFT) was employed to calculate quantum-chemical descriptors, while several...
این پایان نامه به بررسی نقش مثبت یا منفی احساسات روی کارایی عامل های یادگیرنده در یک محیط multi-agent می پردازد. در این راستا مدلی برای عامل های یادگیرنده دارای احساس معرفی می شود. برای بررسی نقش احساسات، یک محیط فرضی multi-agent شبیه سازی شده و حالت های گوناگونی در آن نظر گرفته می شوند. در حالت نخست، کارایی عامل هایی بررسی می شود که دارای احساس نیستند و فقط قابلیت یادگیری دارند. در دومین حالت...
leishmaniasis is a neglected public health problem caused by the protozoan species belonging to the genus leishmania affecting mostly the poor populations of developing countries. the causative organism is transmitted by female sandflies. cutaneous, mucocutaneous, and visceral clinical manifestations are the most frequent forms of leishmaniasis. chemotherapy still relies on the use of pentavale...
leishmaniasis has a wide spectrum of signs and symptoms due to infection to numbers of leishmania species and makes enormous mortality and morbidity. there are clues of antileishmanial effects of prenylated coumarins. apiaceae family is one of the most important sources of coumarins. air-dried aerial parts of ferulago angulata and fruits of prangos asperula were extracted with n -hexane, using ...
The World Health Organization has classified the leishmaniasis as a major tropical disease. An effective vaccine against leishmaniasis is not available and chemotherapy is the only effective way to treat all forms of disease. However, current therapy is toxic, expensive and the resistance has emerged as a serious problem, which has compelled the search for new antileishmanial agents. The aim of...
Crude ethanolic extract, lignoid fraction and the purified compound yangambin were obtained from Ocotea duckei (Lauraceae) and their antileishmanial activity was tested against promastigote forms of Leishmania chagasi and Leishmania amazonensis cultivated in Schneider medium, supplemented with 20% of fetal bovine serum. All substances presented antileishmanial activity with IC50 values of 135.7...
Leishmaniasis is a complex vector-borne protozoan disease caused by parasites of the genus Leishmania. The parasites hugely vary in their mode of tropism giving rise to different non-lethal to fatal clinical patterns of the disease. Afflicting millions, the disease is endemic in tropics and sub-tropics, where majority of the affected individuals are rural and unsound economically, leading to it...
In continuation of our natural and medicinal research programme on tropical rainforest plants, a bioassay guided fractionation of ethanolic extract of leaves of Canarium patentinervium Miq. (Burseraceae Kunth.) led to the isolation of scopoletin (1), scoparone (2), (+)-catechin (3), vomifoliol (4), lioxin (5), and syringic acid (6). All the compounds exhibited antiacetylcholinesterase activity ...
Topical treatment, with drug-containing ointments, of cutaneous leishmaniasis caused by Leishmania major in BALB/c mice was studied. Twenty chemotherapeutic agents having potential or established antileishmanial activity were formulated in different ointment and cream bases. Only 15% paromomycin sulfate with 12% methylbenzethonium chloride, 12% benzethonium chloride, 12% cetalkonium chloride, o...
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