Organ fibrosis inhibitor
An organ fibrosis inhibitor, in particular, a liver fibrosis inhibitor is provided, which contains histidine, preferable together with cysteine and/or cystine as active ingredients. Owing to the combined use, a remarkable effect of inhibiting organ fibrosis, in particular, liver fibrosis can be shown. These substances are usable as the desired active ingredients in the form of a drug or in the form of a food and drink. There is also provided an organ fibrosis inhibitor comprising the active ingredients as described above either separately or as a combination of one of them with a mixture of the other two ingredients. Thus, it is possible to present organ fibrosis inhibitors such as a liver fibrosis inhibitor which are applicable in the form used in health foods for improving and maintaining liver function and foods and drinks for sick people, as well as drugs for various organ diseases caused by fibrosis such as liver diseases.
1. A method for suppressing organ fibrosis, comprising administering to a subject in need thereof an effective amount of a composition comprising one or more amino acids and one or more additives,
wherein said composition comprises histidine and said histidine is at least one member selected from the group consisting of L-histidine, D-histidine, DL-histidine, salts thereof, and mixtures thereof, and
wherein the only amino acids present in the composition are selected from the group consisting of histidine, cysteine, and cystine.
2. The method of claim 1 , wherein said organ fibrosis is kidney fibrosis, pancreas fibrosis, lung fibrosis, vascular vessel fibrosis, skin fibrosis, bone marrow fibrosis, or liver fibrosis.
3. The method of claim 1 , wherein said organ fibrosis is liver fibrosis.
4. The method of claim 1 , wherein said subject in need thereof suffers from at least one liver disease selected from the group consisting of chronic hepatitis, liver fibrosis, cirrhosis, liver cancer, and non-alcoholiic steatohepatitis.
5. The method of claim 1 , wherein said histidine is administered in the form of a food or drink product.
6. The method of claim 1 , wherein said histidine is administered orally or parenterally.
7. The method of claim 1 , further comprising administering at least one further active agent selected from the group consisting of L-cysteine, D-cysteine, DL-cysteine, L-cystine, D-cystine, DL-cystine, salts thereof, and mixtures thereof to said subject in need thereof.
8. The method of claim 7 , where said at least one further active agent and said histidine are administered in separate dosage forms.
9. The method of claim 7 , wherein said at least one further active agent and said histidine are administered in a single dosage form.
10. The method of claim 7 , which comprises administering said histidine and said at least one further active agent in a molar ratio of cysteine:histidine of 1:0.1 to 10.
11. The method of claim 1 , wherein said subject in need thereof is a human.
12. The method of claim 11 , further comprising administering at least one further active agent selected from the group consisting of L-cysteine, D-cysteine, DL-cysteine, L-cystine, D-cystine, DL-cystine, salts thereof, and mixtures thereof to said subject in need thereof.
13. The method of claim 12 , where said at least one further active agent and said histidine are administered in separate dosage forms.
14. The method of claim 12 , wherein said at least one further active agent and said histidine are administered in a single dosage form.
15. The method of claim 11 , comprising administering said histidine to said human in an amount of 10 mg to 50 g per day.
16. The method of claim 15 , wherein said human is suffering from at least one liver disease selected from the group consisting of chronic hepatitis, liver fibrosis, cirrhosis, liver cancer, and non-alcoholic steatohepatitis.
17. The method of claim 11 , comprising administering said histidine to said human in an amount of 100 mg to 20 g per day.
18. The method of claim 17 , wherein said human is suffering from at least one liver disease selected from the group consisting of chronic hepatitis, liver fibrosis, cirrhosis, liver cancer, and non-alcoholic steatohepatitis.
19. The method of claim 18 , comprising administering said histidine to said human in an amount of 1 to 10 g per day.
20. The method of claim 19 , wherein said human is suffering from at least one liver disease selected from the group consisting of chronic hepatitis, liver fibrosis, cirrhosis, liver cancer, and non-alcoholic steatohepatitis.
21. The method of claim 1 , wherein histidine is the only amino acid in said composition and, wherein said histidine is at least one member selected from the group consisting of L-histidine, D-histidine, DL-histidine, salts thereof, and mixtures thereof.