Abstract: The present invention provides a sonochemical irradiation-based method for the preparation of polydopamine (PDA) nanocapsules having reduced wall thickness and uniform size distribution, which may further comprise at least one payload; nanocapsules obtained by this method; and compositions thereof. Such compositions may be formulated for different purposes, e.g., as pharmaceutical compositions for various therapeutic or diagnostic purposes.

Abstract: Cyclic D,L-?-peptides were shown to have an anti-amyloid aggregation effect. The cyclic peptide (designated cyclic peptide-2) having the sequence [1JwHsK], had a drastic effect on amyloid aggregation. However, the linear equivalent of cyclic peptide-2 did not inhibit amyloid formation. Cyclic peptide 2 was also effective in reducing A?-induced toxicity in PC12 cells. According to embodiments of the invention, cyclic peptides may comprise between 6 or 8 amino acids. In an embodiment, half of the amino acid residues are in the D-formation, and the other half are in the L-formation. In an embodiment of the invention, the amino acids alternate between the D and L-formations.

Abstract: An aspect of embodiments of the invention relates to surface modified proteinaceous spherical particles (SMOP). SMOPs according to an embodiment of the invention may comprise a protein layer and an amyloid-binding moiety bound to the protein. In an embodiment, the protein layer is spherical in shape and comprises proteins linked to each other by disulfide bonds. It is suggested that SMOPs are effective in preventing formation of amyloid and aggregation of A? when administered to a patient in need thereof.

Abstract: An aspect of embodiments of the invention relates to surface modified proteinaceous spherical particles (SMOP). SMOPs according to an embodiment of the invention may comprise a protein layer and an amyloid-binding moiety bound to the protein. In an embodiment, the protein layer is spherical in shape and comprises proteins linked to each other by disulfide bonds. It is suggested that SMOPs are effective in preventing formation of amyloid and aggregation of A? when administered to a patient in need thereof.

Abstract: The present invention provides a sonochemical irradiation-based method for the preparation of polydopamine (PDA) nanocapsules having reduced wall thickness and uniform size distribution, which may further comprise at least one payload; nanocapsules obtained by this method; and compositions thereof. Such compositions may be formulated for different purposes, e.g., as pharmaceutical compositions for various therapeutic or diagnostic purposes.

Abstract: The present invention relates to the design, synthesis and biological evaluation of potent long-acting gonadotropin-releasing hormone (GnRH) analogs including agonists and antagonists comprising a GnRH peptide conjugated to emodic acid or an emodic acid derivative. These long acting analogs bind to GnRH receptors with high affinity and are devoid of any toxicity or antiproliferative effects. The present invention further relates to therapeutic uses of these GnRII analogs as contraceptives, in controlling fertility and in treating and/or preventing sex-hormone dependent diseases or conditions.