TW421594B - Pharmaceutical compositions comprising nitric oxide donors and/or substrates or nitric oxide inhibitors for regulating cervical dilatation and extensibility - Google Patents
Pharmaceutical compositions comprising nitric oxide donors and/or substrates or nitric oxide inhibitors for regulating cervical dilatation and extensibility Download PDFInfo
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- TW421594B TW421594B TW085107778A TW85107778A TW421594B TW 421594 B TW421594 B TW 421594B TW 085107778 A TW085107778 A TW 085107778A TW 85107778 A TW85107778 A TW 85107778A TW 421594 B TW421594 B TW 421594B
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical class O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 49
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- 239000008194 pharmaceutical composition Substances 0.000 title claims abstract 23
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Description
經濟部中央標準局貝工消費合作社印製 4 2 15 η, Μ _____Β7 五、發明说明(1 ) 發明背景 發明範園 本發明係有關藉使用一氧化氮供給劑及/或基質或—氧 化氮抑制劑調節子宮頸擴張及延伸度。 有關技藝之説明·· 分娩(自子宮排出胎兒)須收縮子宮肌層,子宮之平滑肌 ,及軟化子宮頸之結締组織,以致能充分地伸展及擴張使 胎兒排出。此軟化稱爲"熟化"。 目前子宮頸熟化之較佳方法係藉使用前列腺素Ε 2 〇此以 陰道凝膠或錠劑使用或並於子宮頸内之凝膠使用。有關使 用前列腺素Ε2之一憂慮爲子宮過度刺激,在子宮頸熟化前 且因此在可能爲舒適或安全之生產以前,導致過強之子宮 肌層收縮之可能性。 理想之製劑爲軟化且塗抹子宮頸而無導致子宮肌層收縮 °此令隨後之收縮(若須要可以小劑量之前列腺素引發)以 最小之阻力生產嬰兒。從動物實驗有良好之證據,抗黃體 素如RU486可符合此等須求’但此藥物之問題爲其與抗糖 皮質激素活性有關對胎兒有損害。 近來於生物學及醫藥上最令人興奮之進展之一爲發現由 内皮細胞產生一氧化氮,且其涉及調節血管張力、血小板 聚集、神經傳遞及免疫活化(Furchgott and Zawadzki,1980 ;Moncada, Palmer and Higgs, 1991 ; Ignarro, 1991) ° 一氧 化氮爲肌肉之平滑肌鬆弛之重要介質(Montada, Palmer and Higgs, 1991)且以前稱爲EDRF(上皮衍生之鬆弛因子 * 4 - 本紙張尺度適用中國國家標準(CNS ) A4規格(2!〇χ297公釐) (請先閲讀背面之注##'項再填寫本頁) 裝. 訂_ 421594 A7 B7 五 經濟部中央標準局貝工消費合作杜印製 、發明説明(2 ) — XFurchgott and Zawadzki, 1980 ; Moncada, Palmer and Higgs, 1991)。 »^1- —^^1 ^n· Hi 1^1 IB^i HI 一* ' 0¾ . ,vs (請先閲讀背面之注意事項再填寫本页) 一氧化氮由L -精胺酸之胍基氮藉由至少不同之異構形之 含黃素之酵素、一氧化氮合成酶之氧化性脱氨作用而合成 (Montada, Palmer and Higgs, 1991) ° 一氣化氮亦可藉應用各種一氧化氮供给劑如硝普化鈉、 硝基甘油、三硝酸甘油酯、S IN -1、單硝酸異山梨醇酯、 二硝酸異山梨醇酯等。 一氧化氣之合成已顯示受L -精胺酸之類似物;NG -確基 -L-精胺酸甲g旨(L-NAME) ’ NG-單乙基精胺酸 (LMMA) ’ N -亞胺乙基-L- arnithine (L-NIO)、L -單曱基-L -精胺酸(L - N N M A) ’ L - N G -甲基精胺酸(l Ν Μ A), Nw-硝基-L-精胺酸(L_NA)及胺基胍之競爭性抑制。 热懷孕之天竺鼠以L - NAME處理造成增加子宮收縮性。 因此,一氧化氮合成酶刺激之子宮收縮性之抑制作用指示 一氧化亂之張力釋放維持子宮於靜止狀態。類似地,懷孕 之天竺鼠以L-NAME處理引發足月前分娩。另一方面,以 L -精胺酸活體外處理懷孕天竺鼠與大鼠子宮條抑制收縮。 這些研究顯示由子宮產生之一氧化氮抑制子宮收縮性及封 阻此合成造成於懷孕及無懷孕之動物中增加肌肉收縮性。 因此,一氧化氮基質或供給劑治療上用於防止子宮收縮性 及一氧化氮抑制劑有效於剌激子宮收縮。 基於使用恆河猴之預先研究,Jennings等(The Journal of Maternal-Fetal Medicine 2 : 170-175 (1993))已提示一氧化 -5-本紙張尺度適用中國國家襟準(CNS ) A4规格(210X 297公釐) 421594 A7 B7 經濟部中央標準扃員工消費合作社印製 五、發明说明(3 氮於懷孕期中之子宮靜止爲重要的,且外源之一氧化氮可 用於控制足月前分娩。 由 Natuzzi 等(Biochem and Biophys. Res. Commun·, 194,
No. 1,1-8 (1993))於妊娠大鼠子宮中之多種構造中證明一 氧化氮合成酶(NOS)活性,且彼等結論爲NOS存在於妊娠 大鼠子宮之多種構造中分娩時NOS活性之降低提示NO可 於妊娠當中提供維持子宮收縮靜止。 形態學之研究示已顯示NO S (NADPH-心肌黃酶,檢測所 有N 0 S異構形之組織化學方法)及N 0代謝酶如過氧化物歧 化酶於子宮額之發生(Papka等,Neuroscience Letters 147 (1992) ; Shiotani 等,Acta Histochem· Cytochem. 26 : 57-64 (1993) )。 現已發現於交配後48-49天(足月日67 + 3日)之懷孕天竺 鼠中皮下以L-NAME處理,令人驚異地導致子宮頸之延伸 度降低及子宮頸之擴張降低。 於懷孕大鼠中,已發現從子宮頸產生之一氧化氮(活體 外參數亞硝酸鹽與硝酸鹽釋放)於分娩之時與懷孕第1 8天 比較增加。對照地,於大鼠懷孕過程中,子宮(子宮肌層) 之NO產生降低。另外黃體素歐那普斯酮(〇naprist〇ne)增 加懷孕大鼠之子宮頸中產生之一氧化.氮,但對子宮(子宮 肌層)中之N 0產生有抑制作用。以同劑量之歐那普斯酮處 理引發大鼠中子宮頸之熟化。 此等發現顯示 *以一氧化氮抑制劑如L - NAME處理,抑制懷孕天竺鼠 ^ϋ- 1^11 il^i 11^1 ^^^1 1·^^— (請先聞讀背面之注意事項再填寫本育) 經濟部中夹橾隼局員工消費合作社印製 421594 A7 ______B7_ 五、發明説明(4 ) 之子宮頸之熟化但刺激子宮收縮; *N0之產生,其對子宮肌層具鬆弛作用,於懷孕過程中 之懷孕子宮(子宮肌層)中減少,但於大鼠之正常與抗黃體 素引發之分娩當中,於子宮頸中増加; 一氧化氮抑制劑如L - NAME對子宮收縮性及子宮頸之相 異之作用’歸因於:NO系統不同之作用或不同酶異構形之 存在於予宮肌層及子宮頸中及 * N 0 -系統於子宮頸之控制中擔任重要之任務,於子宮 頸之熟化過程當中,NO之產生增加。 因此,其结論爲: (a) 局部應用一氧化氮供給劑及/或基質可用來引發子宮 頸熟化或 (b) 局部應用一氧化氮抑制劑可用來防止子宮頸熟化,例 如供治療子宮頸機能不全(太早之子宮頸熟化)或足月前分 娩。 因此,本發明係針對使用一氧化氮供給劑及/或基質或 一氧化氮抑制劑,製造供調節子宮頸嘸張及延伸度之藥劑 〇 本發明聲明用途爲 (a) 至少一種一氧化氮供給劑及/或基質供製造待局部子 宮頸内或陰道内投予供引發子宮頸熟化之藥劑或 (b) 至少一種一氧化氮抑制劑供製造待局部子宮頸内或陰 道内投予供治療子宮頸機能不全或足月前分娩之藥劑。 適宜本發明之目的如(a)—氧化氮供給劑及/或基質或(b) 1^1 _l^i n^i »^lm - i s I- -I 1^1 IK m (請先聞讀背面之注^^項再填寫本頁) 本紙張尺度適用中國國家標準(CNS 规格(210X297公釐) 經濟部中央標率局員工消費合作社印製 421 594 a? _B7_五、發明説明(5 ) 一氧化氮抑制劑’所有皆爲精於此道者已知之具所須性質 之化合物;於"有關技藝之説明”下所提之化合物爲佳。 一氧化氮供給劑及/或基質(a)可再與(彳)至少—種抗黃 體素,前列腺素及/或細胞素併用° 抗黄體素之實例爲 歐那普斯酮(11卢-二甲胺基)苯基卜17 α -羥基-17/9 -(3-羥丙基雌-4,9-二烯-3-酮)’ RU486(U /3 -[4-(二甲胺基)苯基]-17卢-羥基丙炔基)雌-4,9·二 烯-3-酮),(Z - [4-(二甲胺基)苯基]-17乃羥基-17 β-(3-羥基-1-丙烯基)雌-4-烯-3-酮(EP-A 0 404 283), 11 β-(4 -乙醯苯基)-17冷-經基丙炔基)雌- 4,9-二烯-3-酮(ΕΡ-Α 〇 190 759),4,,5,-二氫-11/?-[4-(二甲 胺基)苯基]-6々-甲基螺[雌-4,9 -二烯-17/5, 2'(3'Η)-呋喃] -3-酮,4,,5_-二氫-11点-[4-(二甲胺基)苯基]-7Θ-甲基 螺[雌- 4,9 -二烯-17々,2,(3,Η)-呋喃]-3 -酮 11/? - (4 -乙醯 苯基)-19,24 -二去甲-17,23-環氧基-17(^-膽-4,9,20-三 烯-3-酮,(E)-ll/5-[[(乙醯氧基)亞胺基】甲基]苯基]-17 甲氧基-17α-(甲氧甲基)雌- 4,9-二烯-3-酮(E)-ll万-[4-[[[(乙氧羰基)氧基]亞胺基]甲基]苯基]-I7/5-甲氧基-l7α-(曱氧甲基)雌·4,9-二烯-3-酮及熟知於精於此道者 之具競爭性黃體酮拮抗劑活性之許多化合物。 例如可使用前列腺素碗普斯_ (Sulprostone)(PGE2)或潔美 普洛斯(gemeprost)。 細胞素之最突出之代表爲介白質-8或介白質-1/5 ° —-----·— 丨_____ - 8 "_______ — —_- 本紙張尺渡適用中國國家標準(CNS ) A4規格(210X297公董) n-^n I n i i^i 1^1 • -3 (請先閲讀背面之注意事項再填寫本耳〕
C A7 B7 經濟部中央標準局員工消費合作社印製 五、發明説明(6 ) 這些列示不能視爲—切。 一氧化氮抑制劑(b)可再與(ii)至少一種黃體素及/或環 氧合酶抑制劑(C Ο X -1及C ο X - 2 -抑制劑)併用。 作爲黃體素’以天然產之黃體酮爲佳,但亦可使用技藝 者已知用於口服避孕藥之許多合成黃體素中一種以上。 環氧合酶抑制劑例如阿司匹林。 於本發明之第一方面(a)提供此等本發明化合物與生產或 流產聯用。於此懷孕之情形,將子宮頸預先處理。懷孕當 中激素改變子宮頸,其則易於有效地反應於其他刺激劑。 另外本發明提供本發明之(a)項化合物與外科程序及診斷 程序聯用。因此,(a)項之本發明化合物,視情況與(1)項 所述化合物併用’供製造下列指示用之藥劑: (A)足月時分娩(通常之生產時間,可依次以催產素或類似 之劑處理併用)之引發, (B )與病理學懷孕(例如胎兒畸型)有關之生產之引發;(較 佳的任娠次三個月), (C) 與子宮内死胎之生產之引發, (D) 流產(較佳的首三個月之流產)之引發, (E) 足月前生產之引發, (F) 由於子宮頸難產之延長分娩之處理, (G) 無懷孕女性或懷孕女性之子宮頸熟化之引發以幫助外 科或診斷之程序,及 (Η)供待活體外受孕處理之女性予宮頸熟化之引發。 本發明之第二方面(b)中提供這些本發明化合物用於須預 ___________ -9- n· n n n n n ϋ n m t (請先聞讀背面之注意事項再填寫本真) 訂 本紙張尺度適用中國國家標準(CNS ) A4規格{ 210X297公釐) 經濟部中央棹準局貝工消費合作杜印製 42 1 594 A7 _______ B7 五、發明説明(7 ) 防太早期之子宮頸熟化或其中子宮頸應保持僵硬之徵候。 因此,本發明之(b )項之化合物,可視情況與(丨i )項所提之 化合物併用於製造供下列指示用之藥劑: (I)子宮頸機能不全(子宮頸官能不足)之處理及 (K)危迫之足月前生產之處理。 原則上’此化合物可用於人類及非人類之雌性。人類爲 供此處理之較佳之群。 一氧化氮供給劑及/或基質(a)或一氧化氮抑制劑(b)可 以直接或間接可達到子宮頸之任何方式投藥。因此,其方 便地陰道内或直接應用於子宮頸,例如以凝膠或霜劑局部 應用。其亦可注射於子宮頸組織内或藉由鈍針注射入子宮 頸道。其亦可羊膜外,亦即於子宮壁與羊膜囊之間,使用 導管應用。 較佳之調配物爲凝膠或霜劑,但其可以可軟化之膠囊, 脂質體或以緩慢釋放調配物,或以水溶液,例如鹽水或含 蛋白質溶液應用。調配物可藉精於此道者已知之方法達成 〇 若欲併用上述(a)與(i)項之化合物,可將抗黃體素調配 供全身或局部投藥用。前列腺素及細胞素可調配供局部用 〇 若欲併用上述(b)與(U)項之化合物,可將(Π)項下之化 合物調配供局部或全身應用。 (i)與(i i)項化合物之調配物可以精於此道者已知之方法 達成。 -10- 本紙張尺度適用中國國家標準((:?《丁八4^ ( 210x597公釐)" - I I I I I I I I -I— I I I I 訂 • ▼ (請先閱讀背面之注^項再填寫本頁) 421594 A7 B7 五 、發明説明(8 經濟部中央標準局員工消費合作社印製 本發明之(a)項化合物顯示引發子宮頸熟化之藥理活性, 因此,可用爲醫藥劑。 本發明之(b)項化合物顯示防止子宮頸熟化之藥理活性, 因此,可用爲醫藥劑.。 子宮頸熟化之測量述於實例1。 硝普化鈉及其他一氧化氮供給劑,當局部投予杜娠雌天 竺鼠時,以約t.o至約25.〇毫克之劑量,對子宮頸之熟化有 作用。對於前面(A)至(F)項所述之指示,適當劑量當然依 例如所用之本發明化合物、宿主、投藥之方式及待處理之 h ;兄之性質及嚴重性而異。然而,—般以每子宮頸約U至 約25.0宅克之劑量,較佳以每子宮頸約1 〇毫克之劑量,指 示於動物中可得令人滿意之結果。 本發明化合物可在子宮頸最後熟化以前6至48小時投藥 。熟化可藉由以催產化合物引發生產而進行。此等化合 物可於一組隔幾小時或一天之時間内,以一次以上之劑 量投藥。本發明化合物可藉習用途徑,尤其凝膠、軟膏 或局郅注射(以約0 03至10() mM)之形式投藥。 硝普化鈉及其他一氧化氮供給劑,當投予未懷孕之雌天 鼠時以 '、々1. 〇至約2 5.0毫克之劑量,顯示對子宮頸熟化 =作用。對於前述(G)至(H)項之這些指示,適當之劑量, 當然依例如所用《本發明化纟物、#藥之方式及待處理之 情況之性質與嚴重性而定。然而,一般以每子宮頸约1〇至 ’’力25.0毫克之劑量,較佳的每子宮頸約5.0至20.0毫克之劑 量’最佳的约1G G毫克,於動物中指示得令人滿意之結果 I*--:--:----^—Γ (請先閲讀背面之注項再填寫本頁) 訂
—I 1 I 421594 A7 B7五、發明説明(9 ) 。此等本發明化合物可在子宮頸之最後熟化以前2 4或4 8小 時投藥。此等化合物可於一組間隔數小時或一天之時間内 ,以一次以上之劑量投藥。本發明化合物可藉任何習用途 徑,尤其凝膠,軟膏或局部注射之形式投藥。 典型之N 0 -基質及N 0 ·供給劑之劑量範圍之實例爲: L-精胺酸 硝普化鈉 确基甘油 單硝酸異山梨醇酯 二硝酸異山梨醇酯 500毫克-10克 範圍500-2000微克/公斤/曰 0.5-10毫克 10-100毫克 10-100毫克 其他Ν Ο -供給劑或Ν Ο -基質以生物同等量使用 典型之NO-抑制劑之劑量範圍之實例爲: (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印黎 L-NAME L-NIO L-NA L-MMA L-NG L-NMA 胺基胍 1至50毫克/公斤/曰 1至50毫克/公斤/曰 1至50毫克/公斤/曰 1至50毫克/公斤/曰 1至50毫克/公斤/曰 1至50毫克/公斤/曰 0.1至100毫克/公斤/曰 其他Ν Ο -抑制劑以生物同等量使用 12- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 421594 Α7 Β7 經濟部中央榇準局員工消費合作社印製 五、發明説明(1〇 ) RU 486之劑量範圍:經口 2 5 - 600毫克/曰。 其他抗黃體素以生物上同等量使用。 硫普斯酮之劑量範圍:100-1000微克/日,肌肉内或靜 脈内D 其他前列腺素如PGE2以生物同等量使用。 前列腺素亦可以凝膠局部子宮頸内,以凝膠或錠劑陰道 内使用。 上述以外之其他化合物之生物同等量之測定可藉實例中 揭示之方法,此等量於子宮頸内導致與在其他類似情況下 特別揭示之量可比較之作用。 本發明之結果由下示之圖所支持。 圖1顯示硝普化鈉對妊娠天竺鼠之子宮頸熟化之作用。 動物如實例1所述處理。上面圖片顯示於延伸度測量時 之最初擴張(以毫米表示);下面囷片證明對延伸度之 作用(迴歸曲線之斜率)。數據以箱形圖提供。垂直線 表自最低至最高量之範圍。箱形之高度,水平線及星 號分別表間回分位數範圍、中間値及平均値。 圖2顯示L - N ΑΜΕ對妇:娠天竺氣之予宮頸之作用。上圖片 顯示於延仲度測量當中之最初擴張(以毫米表示);下 圖片證明對延伸度之作用(迴歸曲線之斜率[Ν/毫米]) 。數據如圖1所述之箱形圖代表。 圖3至5顯示以L - NAME處理(5 0毫克/大鼠)後或無處理 之大鼠子宮頸之延伸度。 圖6顯示於L - NAME處理當中分挽期間及生小鼠間隔(於 -13- (請九聞讀背面之注意事項再填寫本貫) 本紙張尺度適用中國國家標隼(CNS )八4規格(2ί0Χ297公釐}
經濟.郅中央標率局貝工消費合作社印製 五、發明説明(11 ) 小鼠出生之間之時間)之增加。 圖7至9顯示於正常之子宮頸擴張(介),於黃體酮(U)、抗 黃體素(U),及LPS(O)之後,NO之產生。 f例1 二氧.化_|L於妊娠天竺鼠中對子宮頸之熟化之影響 1 ~~~ — — -目 【a)—般部分: 熟化之測量 自交配後44天之天竺鼠得整個子宮頸。藉DOWNING, S.J. 及 SHERWOOD,O.D. (1985) Endocrinology 116 : 1215-1220 中所述方法之修飾法做延伸度研究。將分離之子宮頸固定 於插穿子宮頸之各溝間之兩鈎之間。將一鈎固定,將另一 夠向上移動,同時以1赫之採樣速率測量力與位移。首先 將各子宮頸延伸至達50 mN之力。記錄有關之位移並稱爲 最初擴張。因此,子宮頸之原本之内圓周爲初擴張之兩倍 〇 隨後,藉移動鈎0.1毫米延伸子宮頸,再將鈎固定且令子 宮頸鬆弛2分。重複此至子宮頸破裂或至少已達彎曲點, 亦即負載物之外皮對時間曲線變成非直線性(參見出版物 CONRAD, J.T. and UELAND, K. (1979) Am J Obstet Gynecol 133 : 11-13) (b)分析·. 爲測定子宮頸之延伸度,研究力對伸展比之曲線。此曲 線之製得藉由取於各延伸階段之最大力及有關之伸展比, 其定義爲位移除以初擴張。迴歸線通過此曲線之直線部分 _ - 14- 本纸張Λ度適用中國國家榡準(CNS ) A4規格(210X297公釐) ΙΊΙ-------;--裝-—t (諳先閲讀背面之注意事項再填寫本頁} 訂 經濟部中央標準局貝工消费合作社印製 Α7 ______ Β7____ 五、發明説明(12 ) 之斜率取來定量處理對子宮頸延伸度之影響。斜率之降低 代表子宮頸之延伸度之增加(熟化作用)。 (C )特殊部分: 於交配後42天之妊娠天竺鼠(每組n = 6隻動物)於第42與 43天(於上午9 : 00及下午5 : 00)以含0.03 mM硝普化鈉之 200微升凝膠(3%羥基纖維素)子宮頸内一天處理2次。後 4 4天做子宮頸延伸度測量(參數:迴歸線之斜率,初擴張) 〇 藉下面方法投予凝膠:在將窥鏡引入陰道後,經由约10〇 毫米長之鈍針將有或無SNP之200微升之纖維素凝膠注入 子宮頸道。部分之凝膠沿著子宮頸移道繞著子宮頸之内管 口發生。凝膠含本發明化合物於PBS(磷酸鹽緩衝之鹽水, 參見 L,HUDSON 及 F.C, HAY (1980) Practical Immunology, Oxford,第二版)中’與3 %(w/v)羥乙基纖維素。 對照組接受含3 % (w / v)羥乙基纖維素於p B S中之凝膠。 藉上述能容許定量子宮頸在等軸之情況下之子宮頸延伸 度及擴張之方法測量子宮頸之機械性質。 (d)結果: 實驗1之結果示於圖1 〇上圖片顯示迴歸線之斜率,其爲 子宮頸之延伸度之參數。下圖片證明子宮頸之初擴張,以 毫米表示。 此結果證明在以凝膠局部投藥後,N 〇供給劑硝普化鈉 (SNP)增加妊銀天竺鼠之子宮頸熟化。 實例2 l________ -15- 本紙張尺度適用中國國家樣举{ CNS ) A4規格(210X297公瘦) . - 藥 (諳先聞讀背面之注$項再填寫本頁) 421594 421594 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(13 ) 硝普化鈉(jNP)_野廷iU:竺鼠之子宮頸形態學之作用 於交配(P.C.)後第42-43天,子宮頸内投予於0.2毫升 PBS緩衝液(含3%羥基纖維素)中之Snp(〇.1M)2次,於交 配後第4 4天以形態學評估評估作用。對照組動物以媒劑處 理。於當場固定後藉血管灌流得用來形態學評估用之所有 子宮頸。於交配後50天,於上午之間,於以肌肉内 1,5毫升戊巴比妥(60毫克/毫升)麻醉下’做灌流程序。 將導管植入在腎動脈之分支下之腹部主動脈内;動物以二 甲胂酸鹽緩衝液’ p Η 7.4灌流6 0 -9 〇秒,接著以2.5 %戌二 酸(於二甲脖酸鹽緩衝液’ pH 7.4中)’於80- 1〇〇厘米Η 2〇 之壓力下固足6-10分。將子宫頸摘除並解剖除去鄰接之組 織。再於4°C下固定於同一固定劑中e以緩衝液洗後,將 物質於冷二甲胂酸鹽缓衝之1%〇5〇4中後固定2小時,於 分級之乙醇組中脱水’並埋於Araldite環氧基樹脂中。從這 些k本以1-2微米厚度切下橫的半薄外科切片,以【%甲笨 胺藍(於硼酸鈉中)染色待以光顯微鏡觀察β此使能研究整 個子宮頸,因此提供子宮頸中各種細胞群體分佈之概觀。 其後,自子宮頸橫塊修整小的標本(丨· 2毫米3 ),並以於 Reichert 0mU3切片機上之玻璃或鑽石製備超薄切片,並固 定於單一細長孔Formvar塗佈之銅網上。彼等以乙酸雙氧鈾 及摔樣酸錯染色並以Zeiss EM-10電子顯微鏡於6〇_8〇 下觀察。 電子顯微鏡研究顯示顯著之子宮頸熟化伴隨膠原蛋白纖 維溶解、基質水腫、動脈擴張及巨嗟細胞、淋巴球及粒性 制 t 關家轉(CNS ) A4^ ( 210X297公釐) n·^— - - n n - - ^ - ί* I - n ! s^· ' · · fII先閑讀背面之注意事項再填寫本頁j 421594 A7 B7 經濟部中央標準局員工消費合作社印¾ 五、發明説明(14 細胞之浸潤。許多肥大細胞亦存在。SNp之形態學之影響 類似於那些在足月時正常之子宮頸熟化時,或於以抗黃體 素歐那普斯酮或細胞素IL-8處理後所觀察者。 實例3 L-NAME對妊娠天竺鼠之子宮頸之作$ 於交配後48與49日,懷孕之天竺鼠以L-NAME(125毫 克/曰/動物’皮下)處理。於交配後5〇天,亦即開始處 理後2天,測量子宮頸延伸度及擴張。如實例丨所述進行測 量。實例3之結果示於圖2相擴張及子宮頸延伸度(斜率之 增加)與對照組比較皆降低。 實例4 L-NAME對妊娠天竺鼠分娩之影響 將含L-NAME(第1組:7毫克;第2组、12,5及第3組: 25毫克/動物/日)之滲透迷你幫甫,於交配後5〇天(足月 =交配後6 7 + 2曰)皮下植入。對照組以媒劑處理。 第3組所有動物(5/5)及第2組3/5於處理8天内過早(交 配後6 5天以前)分挽。 研究顯示L-NAME藉活化子宮收縮而引發天竺鼠之足月 前分娩。然而,於以L-NAME處理之動物中觀察延長之分 娩持續數小時。此觀察爲缺乏子宮頸熟化之間接指示,其 於交配後5 0天藉使用子宮頸之延伸度測量所做之分開之實 驗中證明(圖2 )。 實例5 L-NAME對大鼠分娩之影響 ^1. 良紙張尺度適用中國國家標準(CNS ) A4规格(210X297公釐) —f^i i n^— ml m tfn - 、j-a . . (讀先聞讀背面之注意事項再填寫本頁j 經濟部中央揉隼局員工消費合作社印製 42 1 5S4 A7 _B7 五、發明説明(15 ) 基於類似於實例4中所述之實驗之圖6顯示於任嫌大鼠之 L - NAME處理(5 0毫克/曰)當中,分娩期間及生小鼠之間 隔,亦即單一小鼠出生之間之時間’顯著増加。此清楚地 顯示一氧化氮抑制劑P方止大鼠之子宮頸熟化。 實例6 於正常之子宮頸擴張當中,.於黃體酮、抗普贈素及LPS處 理後之大鼠中一氧化氮之產生 (a )方法 於活體外測量爲子宮頸與子宮组織中一氧化氮總聚積之 一氧化氮產生活性,使用於Yallampalli C, Grafield RE, Byam-Smith Μ (1993): —氧化氮抑制懷孕中而非分娩時之 予宮收縮性’ Endocrinology, 133 : 1899-1902中所述之方法 評估。簡言之,自交配後18天,皮下以1〇毫克之歐那普斯 酮處理及自交配後1 8 -2 1天以媒劑處理(對照組)之分娩大 鼠(懷孕第2 2 - 2 3天)所得之小片之子宮頸或子宮組織,於 最少必須培養基(MEM)中與L -精胺酸(有或無L -NAME)於 3 7 C培育2 4小時。使用Griess試劑測定培養基之總亞碑酸
Ir/tL 鹽。 (b)結果 予宮組織(子宮肌層)中之亞硝酸鹽之產生自分娩之動 物所得之子宮樣品中產生者與懷孕丨8天者比較,劇烈地降 低(Yallampalli等)於子宮頸组織中之亞硝酸鹽之產生(圖7) :於自分娩之動物所得之子宮頸中之NO之產生與懷孕大 鼠(交配後18-22天)者比較顯著增加。 本紙張尺度適 n. ^1. I- 1 - . I I i I 1 _!1 -- f I I i i-----! (請先聞讀背面之注意事項再填寫本頁) 4 2 1 5 9 A7 B7 五、發明説明(16 ) 歐那普斯酮於子宮頸中對NO產生之影響(圖8):與交配 後19天之對照組比較,子宮頸中no產生顯著增加至自發 性分挽之動物中所見之程度。 1例7 以二1氧_化氮供給劑預先引發子宮頸熟化 對於已由於子癎先兆被歸類引發生產之懷孕第38週之孕 婦(約30歲,50-80公斤),以0.01-0.1 mM濃度之硝普化鈉 凝膠子宮頸内每日投予2次以達子宮頸熟化。於次日使用 靜脈輸注催產素做生產引發。 實例8 應應用L-NAME處理子宮頸機能不全 於表現子宮頸機能不全信號(子宮頸擴張’子宮頸軟化) 之懷孕26週孕婦(約30歲,50-8 0公斤)以〇.卜50毫克/毫 升濃度之L - NAME凝膠,子宮頸内或陰道内#天投予2至3 個劑量,直至子宮頸機能不全之症候改善。 H' ^^^1 二 i n^i nt— ^^^1 n -- i ---.....I--ai - - - (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印製 一遥 度 尺 張 紙 I本 '隼 榡 一家 國 國 Μ 釐 I公 7 9 2
Claims (1)
- 42 丨 594 . 第851〇7778號專利申請案 i! 中文_請專利範園修正本(87年1〇月)S___ 六、申請專利範圍 1. 一種用於引發子宮頸熟化之醫藥組合物,其包括至少一 種一氧化氮供給劑及/或基質。 2. —種用於治療子宮頭機能不全或足月前生產之醫藥組合 物,其包括至少一種一氧化氮抑制劑。 -. 3. 根據申請專利範園第1項之醫藥组合物,其合併至少一 種抗黃體素,前列腺素及/或細胞素。 4根據申請專利範圍第2項之醫藥組合物,其合併至少一 種黃體素及/或環氧合酶抑制劑(C OX- 1及C OX-2抑制 劑)。 5·根據申請專利範圍第1或3項之醫藥組合物,其係供引發 足月生產之用途。 6. 根據申請專利範園第丨或3項之醫藥组合物,其係供引發 與病理學懷孕有關之生產之用途。 7. 根據申請專利範圍第1或3項之醫藥組合物,其係供引發 與子宮内死胎有關之生產之用途’ S•根據申請專利範圍第1或3項之醫藥組合物,其係供引發 泥產之用途。 經濟部中央揉隼局貝工消費合作社印製 ^^--------ΪΤ (請先W讀背面之注意事項再填寫本頁) 9. 根據申請專利範圍第1或3項之醫藥组合物,其係供引發 足月前生產之用途。 10. 根據申請專利範圍第1或3項之醫藥组合物,其係供處理 延長之生產之用途。 11. 根據申請專利範園第1或3項之醫藥组合物,其係供引發 兴懷孕女性或懷孕女性之子宮續熟化’幫助外科或診斷 程序之用途。 本⑽尺度速用中國ϋ家榇準丨CNS ) Α4«^ { 210X297公羡) 42 Ί 5S4 Αδ BS C8 D8 經濟部中央標準局員工消費合作社印裝 夂'申請專利範圍 12. 根據申請專利範圍第i或3項之醫藥組合物,其係供引發 待活體外受孕處理之女性之子宮頸熟化之用途。 13. 根據申請專利範圍第2或4項之醫藥組合物,其係供處理 子宮頸機能不全之用途。 . W,根據申請專利範圍第2或4項之醫藥组合物,其係供處理 危迫之足月前生產。 15_根據申請專利範園第1項之醫藥组合物,其中該一氧化 氮基質及/或供給劑爲至少一種下列成伶: L -精胺酸、硝普化鈉、硝基甘油、三硝酸甘油酯、 S IN - 1、單硝酸異山梨醇酯、二硝酸異山梨醇酯。 16.根據申請專利範圍第2項之醫藥組合物,其中該一氧化 氮抑制劑爲至少一種下列成份: N G -硝基-L -精胺酸甲酯(L - NAME ),N G -單乙基-L -精胺酸(L-MMA) ,N-亞胺乙基-L-阿尼辛 (arnithine)(L-NIO) 、L-單曱基-L-精胺酸(乙-NNMA),L-NG -甲基精胺酸(L-NMA),Nw -硝基- JL-精胺酸(L-NA)及胺基胍。 Π.根據申請專利範圍第3項之醫藥组合物,其中黃體激素 爲至少一種下列成分·_ 歐那普斯酮(11冷-[4-(二甲胺基)苯基]-17α-羥基-17々-(3-羥丙基)-13(^-雌-4,9-二烯_3-酮),1111 486(llyS-[4-(二甲胺基)苯基]-17汐·羥基丙 炔基)雌 4,9 -二烯-3 -酮),(Ζ ) - 1 1々-[4 -(二甲胺基)笨 基;1-17/? -羥基-17α-(3-羥基-1-丙烯基)雌-4 -烯-3-酮 -2- ml I -I 111 n^i — - - f 1 J (請先聞讀背面之注意事項再填寫本頁) 訂 本纸張尺度逋用中國國家標準(CNS > Α4规格(210X297公釐) 經濟部t央橾準局貝工消費合作社印製 1 594 H i B8 C8 _____D8☆、申請專利範圍 (Ηρ-A Ο 404 283),1 1 - (4 -乙醯苯基)_17/5 _羥基 π·(1-丙炔基)雌-4,9_ 二烯-3-酮(EP-A 0 190 759), 4,5’ -二氫-liyj_[4-(二甲胺基)苯基卜6ρ_甲基螺[雌_ 4,9-—晞吱喃]-3 -酮,4’,51-二真-1 1 卢 -[4-(—甲胺.基)苯基]-7 -甲基螺[雌_4,9_二缔-17 /?,2’(3fH)-呋喃]-3_酮 1 1 /? -(4 -乙醯苯基)_19,24_ 二 去甲-17,23 -環氧基-17 α -膽-4,9,20 -三烯-3-酮,(E)_ 乙醯氧基)亞胺基]甲基]苯基]_17/?_甲氧基_ 17«-(甲氧甲基)雌-4,9-二烯-3-酮(丑)-11/?-[4-[[[(乙氧羰基)氧基]亞胺基]甲基]苯基甲氧基_ 17«-(甲氧甲基)雌-4,9 -二烯-3-酮。 18.根據申請專利範圍第3項之醫藥组合物,其中前列腺素 爲戸0£2或潔美普洛斯(Genieprost) ° I9-根據申請專利範圍第3項之醫藥组合物,其中細胞素爲 介白素-8或介白素-1厶。 20. 根據申請專利範園第4項之醫藥組合物,其中黃體素爲 黃體_。 21. 根據申請專利範園第4項之醫藥組合物,其中環氧合酶 抑制劑爲阿斯匹林。 u - I- - -1 I - I I. I Jn —I - I ____ (請先閏讀背面之注意事項再填寫本頁) -3- 本紙張尺度逋用中國國家標準(CNS ) A4規格(21〇χ297公釐)
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CA (1) | CA2214779A1 (zh) |
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SK124197A3 (en) | 1995-03-14 | 1998-06-03 | Schering Ag | Use of nitric oxide donors or nitric oxide inhibitors for regulating cervical dilatation and extensibility |
EP0889724A1 (en) * | 1996-02-27 | 1999-01-13 | Rpms Technology Limited | Cox-2 selective inhibitors for managing labour and uterine contractions |
US6232434B1 (en) | 1996-08-02 | 2001-05-15 | Duke University Medical Center | Polymers for delivering nitric oxide in vivo |
DE19809845A1 (de) | 1998-03-03 | 1999-09-09 | Jenapharm Gmbh | S-substituierte 11beta-Benzaldoxim-estra-4,9-dien-kohlensäurethiolester, Verfahren zu deren Herstellung und diese Verbindungen enthaltende pharmazeutische Zubereitungen |
ITMI20002117A1 (it) * | 2000-09-29 | 2002-03-29 | Ibsa Inst Biochimique Sa | Uso di sodio nitroprussiato in ostetricia e ginecologia |
WO2005023189A2 (en) * | 2003-09-03 | 2005-03-17 | Pharmacia Corporation | Method of cox-2 selective inhibitor and nitric oxide-donating agent |
WO2006089561A1 (en) * | 2005-02-23 | 2006-08-31 | Abbas Abdelsalam Ghazi | Pharmaceutical compositions containing organic acids useful for softening and ripening uterine cervix. |
US8828981B2 (en) | 2007-02-06 | 2014-09-09 | George Creasy | Progesterone for the treatment or prevention of spontaneous preterm birth |
CN102283827A (zh) * | 2008-10-16 | 2011-12-21 | 四川维信医药科技有限责任公司 | 单硝酸异山梨酯的新用途 |
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US5508045A (en) | 1992-10-09 | 1996-04-16 | The Regents Of The University Of California | Method and agents for control and management of labor during pregnancy |
NZ276105A (en) * | 1993-11-16 | 2001-04-27 | Schering Ag | Use of nitric oxide synthase substrate and/or nitric oxide donor optionally with other compounds to prevent uterine contraction or a nitric oxide inhibitor to stimulate uterine contraction |
US5550369A (en) | 1994-02-28 | 1996-08-27 | Electro-Pro, Inc. | Triangulation position detection method and apparatus |
SK124197A3 (en) | 1995-03-14 | 1998-06-03 | Schering Ag | Use of nitric oxide donors or nitric oxide inhibitors for regulating cervical dilatation and extensibility |
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