JP4455504B2 - 雲南紅豆杉由来イソタキシレシノールを成分とする骨粗しょう症治療・予防薬 - Google Patents
雲南紅豆杉由来イソタキシレシノールを成分とする骨粗しょう症治療・予防薬 Download PDFInfo
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- JP4455504B2 JP4455504B2 JP2005517653A JP2005517653A JP4455504B2 JP 4455504 B2 JP4455504 B2 JP 4455504B2 JP 2005517653 A JP2005517653 A JP 2005517653A JP 2005517653 A JP2005517653 A JP 2005517653A JP 4455504 B2 JP4455504 B2 JP 4455504B2
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- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
- A61P19/10—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
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Description
また、連翹(Forsythia suspense Vahl)に由来するピノレジノールが更年期障害の病状改善に効果を有することが知られている。そして、ピノレジノールが骨粗しょう症の予防に役立つことであろうことが示唆されている。(例えば、特許文献2参照。)。
本発明にかかる医薬は経口、非経口、又は経皮投与することができる。投与形態は、通常医薬の投与に用いられる形態が制限なく使用可能であり、例えば錠剤もしくは被覆錠、カプセル、溶液、シロップ、粉末、座薬が挙げられる。
雲南紅豆杉の材部及び樹皮(合わせて木部)を粉砕機で粉砕し、30メッシュパスの粉末を得た。この粉末を乾燥した。乾燥粉末850gを4Lの純水で45分間還流抽出した。濾過後、残渣に4Lの純水を加えて45分間還流抽出した。さらに同じ還流抽出操作を1回繰り返した。3回の水抽出液を合わせて減圧濃縮し、水抽出物52.5gを得た。
1H NMR (CD3OD), δ 6.69 (1H, d, J = 8.0 Hz, H-5'), 6.61 (1H, s, H-5), 6.52 (1H, d, J = 2.0 Hz, H-2'), 6.50 (1H, dd, J = 2.0, 8.0 Hz, H-6'), 6.19 (1H, s, H-2), 4.67 (2H, m, H-9), 4.67 (1H, m, H-9'), 4.66 (1H, d, J = 6.9 Hz, H-7’), 3.77 (3H, s, H-OMe), 3.40 (1H, dd, J = 4.3, 11.1 Hz, H-9'), 2.73 (1H, br d, J = 6.8 Hz, H-7), 1.97 (1H, m, H-8), 1.71 (1H, m, H-8')
13C NMR (CD3OD), δ 147.1 (C-3), 146.2 (C-3'), 145.2 (C-4), 144.6 (C-4'), 138.7 (C-1'), 134.3 (C-1), 128.9 (C-6), 122.0 (C-6'), 117.4 (C-2), 117.3 (C-2'), 116.1 (C-5'), 112.3 (C-5), 66.0 (C-9), 62.4 (C-9'), 56.4 (C-OMe), 48.1 (C-8'), 47.8 (C-7'), 40.1 (C-8), 33.5 (C-7)
[α]D 25+47.3゜(c=0.4 in Ethanol)
ITXの構造式は、King, F.E.; L.Jurd & King, T.J., isoTaxiresinol (3'-Demethylisolariciresinol), A New Lignan extracted from the Heartwood of the English Yew, Taxus baccata; J. Chem. Soc., 17-24(1952) に記載された構造式と一致した。
ラットを用いてITXの抗骨粗しょう活性を試験した。
ネガティブコントロール(negative control)としてOVX群を設け、また、擬似手術を行った(Sham)群を設けた。OVX群とSham群には餌だけを与えた。
測定は、pQCT system XCT Research M(Stratec Medizintechnik GmbH,Germany)を使ってラットの左側脛骨をスキャンした。ボクセルサイズは0.08mmに、スライスの厚さは0.5mmに、皮質骨のBMDのスレツシュホールド値は464mg/cm3に設定した。全骨中の海綿骨と皮質骨を区別するため、ピールモードは20に設定した。
予備走査を行い、成長板を確認したうえ、レファレンス位置を指定して、成長板下の1−5mmの所で4つの横断面をスキャンした。分離モード3と輪郭モード2に設定して、皮質骨と海綿骨のBMCとBMD、皮質骨の厚さ、皮質骨の内膜周囲長、外膜周囲長を測定した。
骨強度の3つ指標(X−,Y−,Polar−軸)はXCT Research Series Manual Software Version 5.4で、標準皮質骨BMDを1200mg/cm3として、計算により求めた。
さらに脛骨、大腿骨、子宮を摘出し、これらの重量などを測定した。
表中の全骨は海綿骨と皮質骨を合わせて測定した骨全体の測定値を示している。BMC(Bone mineral content)は骨量(または骨塩量とも呼ばれる)を示し、BMD(Bone mineral density)は骨密度を示している。#印は、スチューデントのt検定(Student’s t−test)の結果、#p<0.05 ##p<0.01 ###p<0.001でSham群との間に有意差があることを示し、*印は、スチューデントのt検定(Student’s t−test)の結果、*p<0.05 **p<0.01 ***p<0.001でOVX群との間に有意差があることを示す。t検定の結果は、以下の表4についても同様に表示している。
ITX100群とSham群の差異と、OVX群とSham群の差異を比較すると、ITX100群では、OVX群と比較して、海綿骨のBMCと皮質骨のBMDの減少が抑止された。ITX50群とSham群の差異と、OVX群とSham群の差異を比較すると、ITX50群では、OVX群と比較して、全骨と皮質骨のBMD、BMCの減少が抑止された。E2群とSham群の差異と、OVX群とSham群の差異を比較すると、E2群では、OVX群と比較して、全骨のBMDと海綿骨のBMCを除き、すべての減少が抑止された。
ITX50群、ITX100群で観察された、内膜周囲長の増加抑制と皮質骨厚さの減少抑制は、ITXが骨内膜の吸収を抑制するとともに、骨外膜の形成を穏やかに促進することを示している。
本試験においては、骨強度インデックスとして、PSSI(ねじれ強度)(polar−axis strength index)、XSSI(圧縮強度)(X−axis strength index)、YSSI(折れ強度)(Y−axis strength index)を測定した。
ITX50群では、OVX群に比較して3つの骨強度インデックスがすべて増加(PSSIが16.2%、YSSIが24.0%、XSSIが14.2%増加)した。このような強度インデックスの減少防止効果は、皮質骨厚さの減少防止効果に起因するものと考えられて、ITXは強い抗骨折活性を持つことが判った。なお、骨折は骨粗しょう症の中で一番重要な問題である。
E2群では、OVX群と比較して、XSSIが15.3%増加、YSSIが23.5%増加した。
ITX100群、ITX50群とSham群の差異と、OVX群とSham群の差異を比較すると、ITX100群、ITX50群では、終期の体重増加は抑制され、また、子宮重量はOVX群に比較して大きな違いは認められない。
一方、E2群とSham群の差異と、OVX群とSham群の差異を比較すると、E2群では、終期の体重増加が抑制され、同時に、子宮重量の減少は抑制(Sham群に比較して48.5%)された。
Claims (2)
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Application Number | Priority Date | Filing Date | Title |
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JP2004026535 | 2004-02-03 | ||
JP2004026535 | 2004-02-03 | ||
PCT/JP2005/001055 WO2005074905A1 (ja) | 2004-02-03 | 2005-01-27 | 雲南紅豆杉由来イソタキシレシノールを成分とする骨粗しょう症治療・予防薬 |
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JPWO2005074905A1 JPWO2005074905A1 (ja) | 2007-09-13 |
JP4455504B2 true JP4455504B2 (ja) | 2010-04-21 |
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JP2005517653A Active JP4455504B2 (ja) | 2004-02-03 | 2005-01-27 | 雲南紅豆杉由来イソタキシレシノールを成分とする骨粗しょう症治療・予防薬 |
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US (1) | US7666913B2 (ja) |
JP (1) | JP4455504B2 (ja) |
KR (1) | KR100739280B1 (ja) |
CN (1) | CN1842327B (ja) |
HK (1) | HK1094773A1 (ja) |
TW (1) | TWI285108B (ja) |
WO (1) | WO2005074905A1 (ja) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0912592A (ja) * | 1995-06-26 | 1997-01-14 | Taisho Pharmaceut Co Ltd | リグナン系化合物 |
US6261565B1 (en) * | 1996-03-13 | 2001-07-17 | Archer Daniels Midland Company | Method of preparing and using isoflavones |
US6417224B1 (en) * | 1998-03-06 | 2002-07-09 | Meiji Seika Kaisha, Ltd. | Prophylactic, therapeutic agent for osteoporosis |
IT1299191B1 (it) | 1998-06-23 | 2000-02-29 | Sigma Tau Healthscience Spa | Composizione atta a prevenire e trattare l'osteoporosi e le alterazioni legate alla menopausa |
US6451849B1 (en) * | 1999-03-30 | 2002-09-17 | Hormos Nutraceutical Oy Ltd. | Use of hydroxymatairesinol for prevention of cancers, non-cancer, hormone dependent diseases and cardiovascular diseases by hydroxymatairesinol, and a pharmaceutical preparation, food additive and food product comprising hydroxymatairesinol |
KR100408231B1 (ko) | 2000-08-14 | 2003-12-01 | 한국 한의학 연구원 | 골다공증 예방 및 치료용 플라보노이드 유도체 |
JP2003063971A (ja) * | 2001-08-23 | 2003-03-05 | Tama Seikagaku Kk | 連翹葉及びその抽出物とそれらの用途 |
US20030144216A1 (en) * | 2002-01-25 | 2003-07-31 | Mikko Unkila | Method for prevention of diseases in coeliac patients |
CA2478714C (en) * | 2002-03-11 | 2012-07-31 | Suntory Limited | Method for producing sdg, and food and drink comprising it |
US20060035964A1 (en) * | 2002-07-24 | 2006-02-16 | Shigetoshi Kadota | Hypoglycemic agent, liver protecting agent and anticancer agent containing lignans originating in hongdoushan |
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2005
- 2005-01-27 KR KR1020067002230A patent/KR100739280B1/ko active IP Right Grant
- 2005-01-27 JP JP2005517653A patent/JP4455504B2/ja active Active
- 2005-01-27 WO PCT/JP2005/001055 patent/WO2005074905A1/ja active Application Filing
- 2005-01-27 US US10/570,252 patent/US7666913B2/en active Active
- 2005-01-27 CN CN2005800009414A patent/CN1842327B/zh not_active Expired - Fee Related
- 2005-02-02 TW TW094103196A patent/TWI285108B/zh not_active IP Right Cessation
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TWI285108B (en) | 2007-08-11 |
WO2005074905A1 (ja) | 2005-08-18 |
KR100739280B1 (ko) | 2007-07-12 |
US7666913B2 (en) | 2010-02-23 |
CN1842327A (zh) | 2006-10-04 |
CN1842327B (zh) | 2011-05-11 |
JPWO2005074905A1 (ja) | 2007-09-13 |
TW200529865A (en) | 2005-09-16 |
HK1094773A1 (en) | 2007-04-13 |
US20090143483A1 (en) | 2009-06-04 |
KR20060037416A (ko) | 2006-05-03 |
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