Use of casein peptides for treating hypertension

A - Human Necessities – 61 – K

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Details

A61K 38/05 (2006.01) A23L 1/305 (2006.01) A61K 38/06 (2006.01) A61K 38/07 (2006.01) A61K 38/08 (2006.01)

Patent

CA 2490282

The invention concerns the use for preparing anti-hypertensive medicines useful for treating or preventing hypertension, of one or more peptides having ACE inhibiting activity with IC¿50? values not more than 60 µM, selected among peptide groups having the following amino acid sequences: Thr-Val-Tyr (SEQ ID NO: 1) Asn-Met-Ala-lle-Asn-Pro-Ser-Lys (SEQ ID NO: 2) Phe-Ala-Leu-Pro-Gln-Tyr (SEQ ID NO: 3) Phe-Pro-Gln-Tyr-Leu-Gln-Tyr (SEQ ID NO: 4) Phe-Ala-Leu-Pro-Gln-Tyr-Leu-Lys (SEQ ID NO: 5) Asn-Met-Ala-lle-Asn-Pro (SEQ ID NO: 6) Phe-Ala-Leu-Pro (SEQ ID NO: 7). The invention also concerns a pharmaceutical composition containing, as active principle, an efficient amount of one or more said peptides, in combination with a pharmaceutically acceptable carrier. The invention further concerns a food product, in particular for supplementing the diet of persons liable to hypertension or wishing to prevent its occurrence, containing an efficient amount of one or more said peptides, in combination with food supports, in particular proteins, lipids or carbohydrates. Such a food product may also include at least one of the peptides having the following amino acid sequences: Ala-Leu-Asn-Glu-lle-Asn-Gln-Phe-Tyr-Gln-Lys (SEQ ID NO: 8) Ala-Leu-Asn-Glu-lle-Asn-Gln-Phe-Tyr (SEQ ID NO: 9) Tyr-Leu (SEQ ID NO: 10).

L'invention concerne l'utilisation pour la préparation de médicaments à activité de type antihypertensive, utiles pour le traitement ou la prévention de l'hypertension d'un ou plusieurs peptides, ayant une activité inhibitrice vis-à-vis de l'ECA avec des valeurs d'IC50 de l'ordre ou inférieures à 60 ~M, choisis parmi le groupes de peptides ayant les séquences en acides aminés ci- après: Thr-Val-Tyr (SEQ ID NO : 1) Asn-Met-Ala-lle-Asn-Pro-Ser-Lys (SEQ ID NO : 2) Phe-Ala-Leu-Pro-Gln-Tyr (SEQ ID NO : 3) Phe-Pro-Gln-Tyr-Leu-Gln-Tyr (SEQ ID NO : 4) Phe-Ala-Leu-Pro-Gln-Tyr-Leu-Lys (SEQ ID NO : 5) Asn-Met-Ala-lle-Asn- Pro (SEQ ID NO : 6) Phe-Ala-Leu-Pro (SEQ ID NO : 7). Elle concerne aussi une composition pharmaceutique contenant, à titre de principe actif, une quantité efficace d'un ou plusieurs des peptides, précités, en combinaison avec un véhicule pharmaceutiquement acceptable. Elle concerne aussi un produit alimentaire, notamment utile pour supplémenter l'alimentation des personnes sujettes à l'hypertension ou désireuses de prévenir son apparition, contenant une quantité efficace d'un ou plusieurs des peptides précités, en combinaison avec des supports alimentaires, notamment de nature protéique, lipidique ou glucidique. Un tel produit alimentaire peut comprendre également au moins l'un des peptides ayant les séquences en acides aminés ci-après: Ala-Leu-Asn-Glu- lle-Asn-Gln-Phe-Tyr-Gln-Lys (SEQ ID NO : 8) Ala-Leu-Asn-Glu-lle-Asn-Gln-Phe- Tyr (SEQ ID NO : 9) Tyr-Leu (SEQ ID NO: 10).

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