JP5496881B2 - 男性不妊治療剤 - Google Patents
男性不妊治療剤 Download PDFInfo
- Publication number
- JP5496881B2 JP5496881B2 JP2010511883A JP2010511883A JP5496881B2 JP 5496881 B2 JP5496881 B2 JP 5496881B2 JP 2010511883 A JP2010511883 A JP 2010511883A JP 2010511883 A JP2010511883 A JP 2010511883A JP 5496881 B2 JP5496881 B2 JP 5496881B2
- Authority
- JP
- Japan
- Prior art keywords
- iron
- male infertility
- administration
- ferrous
- treatment agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000035558 fertility Effects 0.000 title description 3
- 208000007466 Male Infertility Diseases 0.000 claims description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 150000003839 salts Chemical class 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 150000002506 iron compounds Chemical class 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 230000037396 body weight Effects 0.000 claims description 9
- 208000010228 Erectile Dysfunction Diseases 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 201000001881 impotence Diseases 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 7
- 125000002252 acyl group Chemical group 0.000 claims description 6
- 229940124597 therapeutic agent Drugs 0.000 claims description 6
- 206010067162 Asthenospermia Diseases 0.000 claims description 5
- 208000007799 Asthenozoospermia Diseases 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 3
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 claims description 3
- 239000011640 ferrous citrate Substances 0.000 claims description 3
- 235000019850 ferrous citrate Nutrition 0.000 claims description 3
- 239000011773 ferrous fumarate Substances 0.000 claims description 3
- 235000002332 ferrous fumarate Nutrition 0.000 claims description 3
- 229960000225 ferrous fumarate Drugs 0.000 claims description 3
- 150000003278 haem Chemical class 0.000 claims description 3
- 238000001990 intravenous administration Methods 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- APVZWAOKZPNDNR-UHFFFAOYSA-L iron(ii) citrate Chemical compound [Fe+2].OC(=O)CC(O)(C([O-])=O)CC([O-])=O APVZWAOKZPNDNR-UHFFFAOYSA-L 0.000 claims description 3
- 229960003330 pentetic acid Drugs 0.000 claims description 3
- 235000000346 sugar Nutrition 0.000 claims description 3
- 238000011200 topical administration Methods 0.000 claims description 3
- LKZLBQPNDYMRJE-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;iron;sodium Chemical compound [Na].[Fe].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O LKZLBQPNDYMRJE-UHFFFAOYSA-N 0.000 claims description 2
- 229920002307 Dextran Polymers 0.000 claims description 2
- 102000008857 Ferritin Human genes 0.000 claims description 2
- 238000008416 Ferritin Methods 0.000 claims description 2
- 108050000784 Ferritin Proteins 0.000 claims description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 claims description 2
- JVOGSHDZLOJKKR-MXFMKSRJSA-I [Na+].[Na+].[Na+].[Mg++].CCc1c(C)c2cc3[n-]c(c(C)c3C=C)c(C)c3nc(C[C@H]3CCC([O-])=O)c(CC([O-])=O)c3[n-]c(cc1n2)c(C)c3C([O-])=O Chemical compound [Na+].[Na+].[Na+].[Mg++].CCc1c(C)c2cc3[n-]c(c(C)c3C=C)c(C)c3nc(C[C@H]3CCC([O-])=O)c(CC([O-])=O)c3[n-]c(cc1n2)c(C)c3C([O-])=O JVOGSHDZLOJKKR-MXFMKSRJSA-I 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 claims description 2
- UMEAURNTRYCPNR-UHFFFAOYSA-N azane;iron(2+) Chemical compound N.[Fe+2] UMEAURNTRYCPNR-UHFFFAOYSA-N 0.000 claims description 2
- PJAOJNOBFQOBGE-UHFFFAOYSA-L azanium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate;iron(2+) Chemical compound [NH4+].[Fe+2].OC(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O PJAOJNOBFQOBGE-UHFFFAOYSA-L 0.000 claims description 2
- 206010003883 azoospermia Diseases 0.000 claims description 2
- MDXRFOWKIZPNTA-UHFFFAOYSA-L butanedioate;iron(2+) Chemical compound [Fe+2].[O-]C(=O)CCC([O-])=O MDXRFOWKIZPNTA-UHFFFAOYSA-L 0.000 claims description 2
- 235000013924 ferrous gluconate Nutrition 0.000 claims description 2
- 239000004222 ferrous gluconate Substances 0.000 claims description 2
- 229960001645 ferrous gluconate Drugs 0.000 claims description 2
- 229960001604 ferrous succinate Drugs 0.000 claims description 2
- 238000007918 intramuscular administration Methods 0.000 claims description 2
- ATEAWHILRRXHPW-UHFFFAOYSA-J iron(2+);phosphonato phosphate Chemical compound [Fe+2].[Fe+2].[O-]P([O-])(=O)OP([O-])([O-])=O ATEAWHILRRXHPW-UHFFFAOYSA-J 0.000 claims description 2
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 claims description 2
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 claims description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 2
- BKJXSPNFVILSSW-UHFFFAOYSA-N n'-[2-(2-aminoethylamino)ethyl]ethane-1,2-diamine;iron Chemical compound [Fe].NCCNCCNCCN BKJXSPNFVILSSW-UHFFFAOYSA-N 0.000 claims description 2
- 208000008634 oligospermia Diseases 0.000 claims description 2
- 230000036616 oligospermia Effects 0.000 claims description 2
- 231100000528 oligospermia Toxicity 0.000 claims description 2
- KXFFQVUPQCREHA-UHFFFAOYSA-K sodium;2-hydroxypropane-1,2,3-tricarboxylate;iron(2+) Chemical compound [Na+].[Fe+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KXFFQVUPQCREHA-UHFFFAOYSA-K 0.000 claims description 2
- CGVPYAREDIUBOY-UHFFFAOYSA-K 2-hydroxypropane-1,2,3-tricarboxylate;iron(2+) Chemical compound [Fe+2].[Fe+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O CGVPYAREDIUBOY-UHFFFAOYSA-K 0.000 claims 1
- UEMAKYWIUUJKCO-UHFFFAOYSA-J C(CCC(=O)[O-])(=O)[O-].[Fe+2].[Fe+2].C(CCC(=O)[O-])(=O)[O-] Chemical compound C(CCC(=O)[O-])(=O)[O-].[Fe+2].[Fe+2].C(CCC(=O)[O-])(=O)[O-] UEMAKYWIUUJKCO-UHFFFAOYSA-J 0.000 claims 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims 1
- OOXJLYWWZIPWKG-UHFFFAOYSA-I N'-(2-aminoethyl)ethane-1,2-diamine iron(5+) pentaacetate Chemical compound [Fe+5].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.NCCNCCN OOXJLYWWZIPWKG-UHFFFAOYSA-I 0.000 claims 1
- XBAIRBODWYDHMN-QTNFYWBSSA-N [Fe].C(=O)(O)C(C(=O)O)N[C@@H](CCC(N)=O)C(=O)O.[Na] Chemical compound [Fe].C(=O)(O)C(C(=O)O)N[C@@H](CCC(N)=O)C(=O)O.[Na] XBAIRBODWYDHMN-QTNFYWBSSA-N 0.000 claims 1
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- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 claims 1
- 238000007912 intraperitoneal administration Methods 0.000 claims 1
- 229940005657 pyrophosphoric acid Drugs 0.000 claims 1
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- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- KYELCRMQMAPVJB-UHFFFAOYSA-N propyl 5-amino-4-oxopentanoate Chemical compound CCCOC(=O)CCC(=O)CN KYELCRMQMAPVJB-UHFFFAOYSA-N 0.000 description 1
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- DEIYFTQMQPDXOT-UHFFFAOYSA-N sildenafil citrate Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.CCCC1=NN(C)C(C(N2)=O)=C1N=C2C(C(=CC=1)OCC)=CC=1S(=O)(=O)N1CCN(C)CC1 DEIYFTQMQPDXOT-UHFFFAOYSA-N 0.000 description 1
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- WRNAXXCYSNLIJM-UHFFFAOYSA-K sodium 2-hydroxypropane-1,2,3-tricarboxylate 2-hydroxypropane-1,2,3-tricarboxylic acid iron(2+) Chemical compound C(CC(O)(C(=O)[O-])CC(=O)[O-])(=O)[O-].[Na+].C(CC(O)(C(=O)O)CC(=O)O)(=O)O.[Fe+2] WRNAXXCYSNLIJM-UHFFFAOYSA-K 0.000 description 1
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Images
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/16—Inorganic salts, minerals or trace elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K33/24—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/08—Drugs for genital or sexual disorders; Contraceptives for gonadal disorders or for enhancing fertility, e.g. inducers of ovulation or of spermatogenesis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/10—Drugs for genital or sexual disorders; Contraceptives for impotence
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Pregnancy & Childbirth (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
性機能障害は、いわゆる勃起障害であり、男性不妊に占める割合は15%という報告もある。勃起は、陰茎海綿体の平滑筋が弛緩し、陰茎深動脈からの血流が増え、同時に組織の膨張により静脈が圧迫され血液の流出が妨げられることにより成立する。先ず、内皮細胞内で一酸化窒素(NO)合成酵素により合成されたNOが、陰茎海綿体に存在する平滑筋細胞中に拡散する。次いで、NOがグアニル酸シクラーゼのヘムと結合し該酵素が活性化する事で、グアノシントリホスフェートからサイクリックグアノシンモノホスフェート(cGMP)が合成される。cGMPは平滑筋細胞中のカルシウム濃度を減少させるため、cGMP濃度の増加に伴い平滑筋の弛緩が進行し、陰茎動脈の血流が増加する。
しかしながら、シルデナフィルは、副作用として血圧の急激かつ大幅な低下や心臓への酸素供給に支障をきたす狭心症等を発症する可能性があることや、またその有効率は約50%に過ぎないという問題がある。
これらの塩は、化学合成、微生物や酵素を用いる方法のいずれの方法によっても製造できる。例えば、特開平4−9360号公報、特表平11−501914号公報、特開2006−182753号公報、特開2005−314361号公報、特開2005−314360号公報記載の方法が挙げられる。
ここで、鉄化合物としては、鉄を分子内に有する化合物であれば特に制限されず、例えば、塩化第二鉄、三二酸化鉄、鉄クロロフィリンナトリウム、フェリチン鉄、クエン酸第一鉄、クエン酸鉄ナトリウム、クエン酸鉄アンモニウム、フマル酸第一鉄、ピロリン酸第一鉄、ピロリン酸第二鉄、含糖酸化鉄、酢酸鉄、シュウ酸鉄、コハク酸第一鉄、コハク酸クエン酸鉄ナトリウム、ヘム鉄、デキストラン鉄、乳酸鉄、グルコン酸第一鉄、ジエチレントリアミン五酢酸鉄ナトリウム、ジエチレントリアミン五酢酸鉄アンモニウム、エチレンジアミン四酢酸鉄ナトリウム、エチレンジアミン四酢酸鉄アンモニウム、トリエチレンテトラアミン鉄、ジカルボキシメチルグルタミン酸鉄ナトリウム、ジカルボキシメチルグルタミン酸鉄アンモニウム、クエン酸鉄コリン、蟻酸第一鉄、蟻酸第二鉄、シュウ酸カリウム第二鉄アンモニウム、硫酸第一鉄、硫酸第二鉄、硫酸鉄アンモニウム、炭酸第二鉄、塩化第一鉄、塩化第二鉄、酸化鉄等が挙げられる。これらは1種又は2種以上を組み合わせて用いることができる。鉄化合物としては、特に医療用に常用されているクエン酸第一鉄、フマル酸第一鉄、ピロリン酸第二鉄、含糖酸化鉄、デキストラン鉄が好ましい。
剤形としては、特に限定されず治療目的に応じて適宜選択でき、例えば顆粒剤、細粒剤、錠剤等の経口投与製剤;液剤、用時溶解型粉末剤等の注射製剤、軟膏、液剤、クリーム剤、ゲル剤等の経皮製剤、坐剤等の非経口投与製剤が挙げられる。これらの製剤の投与方法は、経口投与、静脈内投与、筋肉内投与、患部局所投与、腹腔投与、経皮投与、経直腸投与等が挙げられ、経口投与、腹腔投与、患部局所投与又は静脈投与が好ましい。
ラット(Slc:Wistar)雄10週齢40匹、雌9週齢40匹を入手し、7日間の検疫を行い、13日間の馴化飼育を行った。δ−アミノレブリン酸(以下、ALA)リン酸塩を秤量し、注射用水に溶解させて50mg/mL液を調整し、ラット用経口ゾンデを用い、500mg/kgとなるよう1日1回、雄の12週齢20匹に対し、交配前の14日間、さらに交配を経て剖検前日までの49日〜52日間連日経口投与した(500mg/kg群)。対照群に対しては注射用水を用いて同様に雄の12週齢20匹に対し投与した。投与開始日を投与1日として一般状態、体重、摂餌量、剖検(精巣、精巣上体、精嚢(凝固腺含む)、前立腺の重量)を観察および測定した。
その結果、図1に示すように、精嚢の実重量及び体重比重量において、500mg/kg群は対照群に比べ有意な高値を示した。左右精巣、左右精巣上体、前立腺では有意な差は認められなかった。
実施例1の投与15日以降、交配期間は14日間とし、対照群、500mg/kg群内で雄1匹に対し雌1匹を同居させた。
その結果、交尾成立動物の受胎率は、対照群80.0%(20匹中16匹が受胎成功)に対し、500mg/kg群94.4%(19匹中17匹が受胎成功、1匹は経口ゾンデを噛み切り死亡)と高値を示した。
ALA塩酸塩1gを5%グルコース水溶液50mLに溶解し(被験液)、健康なボランティア、28歳〜44歳の既婚者7名の男性に供した。朝食を取らずに、被験液を経口摂取(13.9〜22.2mg/kg)した。評価は、個人的な主観的評価に基づき行われた。つまり、個人の性経験を基準にして性行為を助長するための勃起が認められたときは(○)、何の変化も認められなかったときは(△)、悪化したときは(×)とした。
その結果、表1に示すように、7名中5名でその日の夜勃起が認められ、その内2名は性行為があり、妊娠が確認された。
本発明の男性不妊治療剤が、精子の運動量や生存率を実際に改善するかどうかを確認するために、検体として犬を用いて以下の実験を行なった。
この犬は、2001年1月28日生まれの7歳の雄のトイプードルであり、ALAの投与開始時点での体重は2.55kgであった。この雄犬への投与用の製剤として、ALAリン酸塩とクエン酸第一鉄ナトリウムとの混合物(ALAリン酸塩:クエン酸第一鉄ナトリウム=1:4(モル比))を作製した。この製剤を、ALAリン酸塩換算で3.33mg/dayとなるように前述の雄犬へ、2008年11月27日から1日1回、21日間連続して経口投与した。前述の製剤の投与直前(0日目)、投与から8日目及び21日目の計3回、その雄犬から採精し、採精直後の精子を顕微鏡で観察し、その活力を5段階で評価した。また、その活力評価結果より、精子の運動量と生存率(%)を算出した。
Claims (8)
- 有効成分として、さらに鉄化合物を組み合わせてなることを特徴とする請求項1記載の男性不妊治療剤。
- 鉄化合物が、塩化第二鉄、三二酸化鉄、鉄クロロフィリンナトリウム、フェリチン鉄、クエン酸第一鉄、クエン酸鉄ナトリウム、クエン酸鉄アンモニウム、フマル酸第一鉄、ピロリン酸第一鉄、ピロリン酸第二鉄、含糖酸化鉄、酢酸鉄、シュウ酸鉄、コハク酸第一鉄、コハク酸クエン酸鉄ナトリウム、ヘム鉄、デキストラン鉄、乳酸鉄、グルコン酸第一鉄、ジエチレントリアミン五酢酸鉄ナトリウム、ジエチレントリアミン五酢酸鉄アンモニウム、エチレンジアミン四酢酸鉄ナトリウム、エチレンジアミン四酢酸鉄アンモニウム、トリエチレンテトラアミン鉄、ジカルボキシメチルグルタミン酸鉄ナトリウム及びジカルボキシメチルグルタミン酸鉄アンモニウムから選ばれる1種又は2種以上の化合物である請求項2記載の男性不妊治療剤。
- 男性不妊が、勃起不全を原因とする請求項1〜3のいずれかの1項記載の男性不妊治療剤。
- 男性不妊が、乏精子症又は精子無力症を原因とする請求項1〜3のいずれかの1項記載の男性不妊治療剤。
- 式(I)で示される化合物又はその塩を、1回に体重1kgあたり0.001mg〜10g投与するものである請求項1〜5のいずれか1項記載の男性不妊治療剤。
- 鉄化合物を、1回に体重1kgあたり0.001mg〜10g投与するものである請求項2〜6のいずれか1項記載の男性不妊治療剤。
- 投与方法が、経口投与、腹腔投与、静脈投与、筋肉内投与、患部局所投与、経皮投与又は経直腸投与である請求項1〜7のいずれか1項記載の男性不妊治療剤。
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