Title:
5α-REDUCTASE INHIBITOR
Document Type and Number:
WIPO Patent Application WO/2021/145004
Kind Code:
A1
Abstract:
[Problem] To provide a 5α-reductase inhibitor which contains a novel component as an active ingredient. [Solution] The features of the present invention are as follows. 1. A 5α-reductase inhibitor containing a sea berry extract as an active ingredient. 2. A 5α-reductase inhibitor containing, as active ingredients, a sea berry extract and a saw palmetto extract at such a blend ratio that a synergic effect can be exerted. 3. The 5α-reductase inhibitor according to the above-mentioned item 2, characterized in that the weight-based mixing ratio between the saw palmetto extract and the sea berry extract (i.e., (saw palmetto extract):(sea berry extract)) is (3 to 1):(1 to 2). 4. A prostatic hyperplasia-preventing agent containing a 5α-reductase inhibitor as recited in any one of the above-mentioned items 1 to 3 as an active ingredient. 5. An androgenic alopecia-preventing agent containing a 5α-reductase inhibitor as recited in any one of the above-mentioned items 1 to 3 as an active ingredient. 6. An acne-preventing/ameliorating agent containing a 5α-reductase inhibitor as recited in any one of the above-mentioned items 1 to 3 as an active ingredient.
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Inventors:
MIYASAKA KENCHI (JP)
SHIMIZU NORIHITO (JP)
SHIMODA HIROSHI (JP)
MURAI HIROMICHI (JP)
SHIMIZU NORIHITO (JP)
SHIMODA HIROSHI (JP)
MURAI HIROMICHI (JP)
Application Number:
PCT/JP2020/018401
Publication Date:
July 22, 2021
Filing Date:
May 01, 2020
Export Citation:
Assignee:
ORYZA OIL & FAT CHEMICAL CO LTD (JP)
International Classes:
A23C9/13; A23G3/48; A23G4/06; A23L2/52; A23L33/105; A61K8/9789; A61K8/9794; A61K36/185; A61K36/889; A61P13/08; A61P17/10; A61P17/14; A61P43/00; A61Q7/00; A61Q19/00
Foreign References:
| JP2016216369A | 2016-12-22 | |||
| JP2007161645A | 2007-06-28 | |||
| JPS6293215A | 1987-04-28 | |||
| KR20180105290A | 2018-09-28 | |||
| JP2007514789A | 2007-06-07 | |||
| JP2010511066A | 2010-04-08 | |||
| JP2002525080A | 2002-08-13 |
Other References:
SUZUKI, SHINRI ET AL.: "Clinical Trial Results of Oleanol Acid Compound Hair Growth Agent", SKIN, vol. 31, no. 4, 1989, pages 541 - 547
SHIMIZU, MINORU ET AL.: "Development of Seaberry Extract, and its Functions", FOOD PROCESSING AND ITS INGREDIENTS, vol. 51, no. 9, 2016, pages 14 - 16
SHIMIZU, MINORU ET AL.: "Development of Seaberry Extract, and its Functions", FOOD PROCESSING AND ITS INGREDIENTS, vol. 51, no. 9, 2016, pages 14 - 16
Attorney, Agent or Firm:
KUMAZAKI Yoichi (JP)
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