JP7479090B1 - 腎機能改善剤 - Google Patents
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Abstract
Description
本形態に係る腎機能改善剤は、コオロギ成分を含む。ここで、コオロギ成分を含むものであれば、特に限定されず、典型的には、コオロギそのものでも、コオロギの粉末や該粉末の圧着物であっても、コオロギの抽出物であってもよい。
本形態に係る剤は、好適には、粉末又は抽出物である。ここで、コオロギの粉末手法は、特に限定されず、例えば、コオロギを煮沸・乾燥した後、粉砕して粉末状にする手法でよい。また、コオロギの抽出手法も、特に限定されず、例えば、真空低温抽出手法であってもよい。
本形態に係る剤は、腎機能改善に有効である。特に、本形態に係る剤は、糖尿病患者に有効である。また、本形態に係る剤は、単独で又は他の成分と共に、機能性食品の形態でもサプリメントの形態であってもよい。ここで、適用方法は、例えば、一日当たり最大投与量を3000 mg/kgとして1回経口摂取する。
動物舎で1週間馴化させたC57BL/6J系統マウスの健康状態を確認して体重測定を行ない、正常+0.9% 生理食塩水(SA)投与群、正常+ヨーロッパイエコオロギ粉(CP: Cricket powder)投与群(3000 mg/kg)、糖尿病(DM)+ 0.9% SA投与群、DM+CP投与群(3000 mg/kg)及びDM+ Astaxanthin(AXT:10 mg/kg)投与群の5群に分けた(8-12 匹/群)。糖尿病モデルマウスは、膵臓のランゲルハンス島β細胞を選択的に破壊し、インスリン分泌を抑制するStreptozotocin(STZ)を100 mg/kg/dayで腹腔内へ2週間連続投与を行い誘導した。また、STZ投与8日目以降にマウスの尾静脈からの部分採血により血糖値を測定し、血糖値が400 mg/dL以上で糖尿病が誘導されたとした。DM群の全てのマウスで糖尿病が誘導された日をDay 0としてDay 1から各群で60日間の連続経口投与を開始し、体重測定、状態異常及び生死を毎日確認した。60日目の投与後に安楽死前3時間の絶食を行い、200 mg/kgのセコバルビタールナトリウム溶液の腹腔内投与による深麻酔を誘導し、ヘパリンナトリウムの抗凝固条件下で全採血を行なった後に腎臓を摘出した。採血した血液は4℃、3300 rpmで15分間遠心し、血漿を解析用サンプルとした。また、摘出した腎臓を4%パラホルムアルデヒド溶液(0.1M リン酸 バッファー pH7.4)で固定後にパラフィンで包埋し、ミクロトームを用いて切片を作成した。血漿中に含まれるタンパク質の代謝副産物である尿素窒素(BUN)、クレアチンリン酸の代謝副産物であるクレアチニン(CRE)の濃度を富士ドライケムを用いて測定した結果、図1に示す通り、正常群では、CP投与による血中BUN及びCRE濃度の減少傾向が確認できた。更に、DM群では、CP投与による血中BUN及びCRE濃度の顕著な減少が確認できた。統計検定にはOne-way ANOVAを用いてp <0.05を有意差有りとし、グラフのカラム内にマウスの使用個体数を示した。また、腎臓切片のHematoxylinとEosin染色を行い、組織構造を評価した結果、図2に示す通り、DM群でControl群と比較して糸球体(矢印)の萎縮が認められた(矢頭)。この糸球体萎縮はCP投与により抑制傾向が認められたが、AXT投与群では萎縮が認められた(矢頭)。
Claims (4)
- コオロギの粉末を有効成分として含む、腎機能改善剤。
- 血液中の尿素窒素の量及び/又はクレアチニン量の低下機能を有する、請求項1記載の剤。
- 糖尿病患者用である、請求項1記載の剤。
- 請求項1~3のいずれか一項記載の剤を含む、腎機能改善用の、機能性食品又はサプリメント。
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JP2023072453A JP7479090B1 (ja) | 2023-01-06 | 2023-04-26 | 腎機能改善剤 |
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JP2023000822A JP2024097397A (ja) | 2023-01-06 | 2023-01-06 | 腎機能改善剤 |
JP2023072453A JP7479090B1 (ja) | 2023-01-06 | 2023-04-26 | 腎機能改善剤 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009234984A (ja) | 2008-03-27 | 2009-10-15 | Ichimasa Kamaboko Co Ltd | 腎機能の低下抑制または改善剤 |
US20120148712A1 (en) | 2010-12-14 | 2012-06-14 | Dianne Lee Guilfoyle | Phylum arthropoda based nutritional supplement |
JP2019210269A (ja) | 2018-05-30 | 2019-12-12 | グー リー、サム | 糖尿疾患の治療用組成物 |
CN111110809A (zh) | 2019-12-17 | 2020-05-08 | 张吉方 | 补肾补中气的中药 |
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- 2023-01-06 JP JP2023000822A patent/JP2024097397A/ja active Pending
- 2023-04-26 JP JP2023072453A patent/JP7479090B1/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009234984A (ja) | 2008-03-27 | 2009-10-15 | Ichimasa Kamaboko Co Ltd | 腎機能の低下抑制または改善剤 |
US20120148712A1 (en) | 2010-12-14 | 2012-06-14 | Dianne Lee Guilfoyle | Phylum arthropoda based nutritional supplement |
JP2019210269A (ja) | 2018-05-30 | 2019-12-12 | グー リー、サム | 糖尿疾患の治療用組成物 |
CN111110809A (zh) | 2019-12-17 | 2020-05-08 | 张吉方 | 补肾补中气的中药 |
Non-Patent Citations (1)
Title |
---|
Mi Yong Ahn et al.,The FASEB Journal,2018年,32(51),p.673.7,https://doi.org/10.1096/fasebj.2018.32.1_supplement.673.7 |
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JP2024097738A (ja) | 2024-07-19 |
JP2024097397A (ja) | 2024-07-19 |
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