Abstract:
The invention relates to a novel antiviral and immune-simulating pharmaceutical composition, containing as active ingredient 20-85 mass% of a ?-3-polyunsaturated fatty acid ester, in fish oil concentrate containing 20-70 mass% of a 5,8,11,14,17-eicosapentaenic acid ester and a 4,7,10,13,16,19-docosahexaenic acid ester, further l-lysine of a salt thereof, optionally a zinc salt, selenium or a selenium compound, as well as additives and carrier ingredients.
Abstract:
The invention relates to novel compounds of formula (I), wherein X means halogen; Z stands for an aromatic group, pyridinyl group or the like; and R represents an alkyl or phenylalkyl group or an -A-N(R1)R2 group, and in the latter R1 and R2 stand, independently from each other, for hydrogen or alkyl group; or R1 and R2, together with the adjacent nitrogen atom, form a 5- to 7-membered, saturated heterocyclic group optionally containing an additional nitrogen, oxygen or sulfur atom, said heterocyclic group optionally being substituted by at least one alkyl group; and A stands for a straight or branched chain alkylene group, as well as the pharmaceutically acceptable acid addition salts thereof; furthermore, to processes for the preparation of the above novel compounds, and pharmaceutical compositions containing these compounds or their pharmaceutically acceptable acid addition salts as active ingredients. Further, the invention relates to certain novel intermediates of formula (II). The compounds of formula (I) possess anti-ischaemic effect and therefore, they are useful for treating ischaemic states and diseases, e.g. myocardial ischaemia (induced e.g. by occlusion of the coronary arteries).
Abstract:
The invention relates to novel hydroxylamine derivatives represented by general formula (I), the pharmaceutically acceptable acid addition salts thereof as well as the pharmaceutical compositions containing the same as active ingredient. Another object of the invention is the preparation of the hydroxylamine derivatives and salts thereof. The compounds according to the invention possess anti-ischaemic effect. In the above formula (I) X is O, -NH or a group of the formula -NR'-, wherein R and R', independently from each other, are alkyl, cycloalkyl, phenylalkyl; a phenyl group optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro; or an N-containing hetero ring; R is H or alkanoyl; R is H or hydroxy optionally acylated with alkanoyl; and R is a group of the formula -N(R )R wherein R and R , independently from each other, may be H, alkyl or a group of the formula -C(O)-NH-R wherein R is as defined above, or R and R , when taken together with the adjacent nitrogen attached thereto, form a 5 to 7-membered hetero ring which may contain one additional hetero atom selected from nitrogen, oxygen and sulfur and which is optionally substituted with alkyl of phenylalkyl.
Abstract:
A method of increasing expression of a molecular chaperon by a cell and/or enhancing the activity of a molecular chaperon in cells is provided. The method comprises treating a cell that is exposed to a physiological stress which induces expression of a molecular chaperon by the cell with an effective amount of a certain hydroxylamine derivative to increase the stress. Alternatively, a hydroxylamine derivative can be administrated to a cell before it is exposed to a physiological stress which induces expression of a molecular chaperon by the cell. Preferably, the cell to which a hydroxylamine derivative is administered is a eukaryotic cell. The hydroxylamine derivative corresponds to the formulae (I) or (II). The invention also provides novel hydroxylamine derivatives falling within the scope of the formulae (I) and (II) as well as pharmaceutical and/or cosmetical compositions comprising the said compounds.
Abstract:
This invention provides a novel improved alpha interferon composition characterized by high specific activity, a purity of greater than 95 % and which upon use in humans is further characterized by a substantial reduction in side effects normally associated with alpha interferon compositions. Also provided is a method for large scale production of the composition from human peripheral blood leukocytes. This alpha interferon composition may be used therapeutically in the treatment of cancers and diseases of the immune system and/or viral etiology.