Sarai
نویسندگان
چکیده
منابع مشابه
Juan Bobo : A Folkloric Information System SARAI
FROM1916THROUGH 1929,THEJoumalofAmm’can Folklore VAE)published nine volumes containing various forms of Puerto Rican folklore which had been collected during the years of 1914 to 1915 by J. Alden Mason, an American anthropologist working under the supervision of Franz Boas. Notable Puerto Rican scholars (Manrique Cabrera, 1982; Rivera de Alvarez, 1983) have endorsed Mason’s collection as being ...
متن کاملMechanisms of Toxicity of 3-Alkylpyridinium Polymers from Marine Sponge Reniera sarai
Polymeric 3-alkylpyridinium salts (poly-APS) present in the marine sponge Reniera sarai show a broad spectrum of biological activities. They are lytic to erythrocytes and various other mammalian cells, enabling the transfection of the latter with alien DNA. Furthermore, they show inhibitory effects to marine bacteria and can inhibit fouling of micro- and macroorganisms to submerged surfaces. Fi...
متن کاملAFM imaging of surface adsorbed polymeric 3-alkylpyridinium salts from the marine sponge Reniera sarai.
Bioactive 3-alkylpyridinium polymers (poly-APS) have recently been isolated from the marine sponge Reniera sarai. Previous results have shown that these molecules in aqueous solutions form supramolecular aggregates with an average hydrodynamic radius of 23 +/- 2 nm. To obtain additional evidences about the shape and the dimensions of poly-APS aggregates, we used atomic force microscopy (AFM) op...
متن کاملPathophysiological Effects of Synthetic Derivatives of Polymeric Alkylpyridinium Salts from the Marine Sponge, Reniera sarai
Polymeric 3-alkylpyridinium salts (poly-APS) are among the most studied natural bioactive compounds extracted from the marine sponge, Reniera sarai. They exhibit a wide range of biological activities, and the most prominent among them are the anti-acetylcholinesterase and membrane-damaging activity. Due to their membrane activity, sAPS can induce the lysis of various cells and cell lines and in...
متن کاملCharacterization of hemolytic activity of 3-alkylpyridinium polymers from the marine sponge Reniera sarai.
Polymeric alkylpyridinium salts (poly-APS) isolated from the marine sponge Reniera sarai act as potent anticholinesterase agents; in addition they show moderate hemolytic and cytotoxic activities. The hemolytic activity of poly-APS is due to their detergent-like structure and behavior in aqueous solutions. In this work, the hemolytic activity of poly-APS is analyzed and compared to that of stru...
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ژورنال
عنوان ژورنال: Arquivo Maaravi: Revista Digital de Estudos Judaicos da UFMG
سال: 2014
ISSN: 1982-3053
DOI: 10.17851/1982-3053.8.15.194