JP6783239B2 - 非アルコール性脂肪性肝疾患を特定するための方法及び組成物 - Google Patents
非アルコール性脂肪性肝疾患を特定するための方法及び組成物 Download PDFInfo
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Description
本出願は、参照により本明細書に組み込まれる2015年2月13日出願の米国仮出願第62/116,108号の優先権を主張するものである。
[実施形態1]対象における非アルコール性脂肪性肝炎(NASH)を非アルコール性脂肪肝(NAFL)と区別する方法であって、
(a)対象から生物試料を得るステップ、
(b)試料をアルカリ溶液で処理してエステル化エイコサノイドを放出させ、エイコサノイドを回収するステップ、及び、
(c)対象から得られた生物試料中の少なくとも1種のエステル化エイコサノイドのレベルをNAFL対象から得られた対照試料と比較するステップを含み、対象から得られた試料中の少なくとも1種のエイコサノイドの、対照と比較したレベルの差がNASHを示す、上記方法。
[実施形態2](b)で得られるエイコサノイドが、60%超で回収されたエイコサノイドである、実施形態1に記載の方法。
[実施形態3]エイコサノイドが、8-HETrE及び15-HETrEからなる群から選択される、実施形態1又は2に記載の方法。
[実施形態4]生物試料が、血液、血漿及び血清からなる群から選択される、実施形態1に記載の方法。
[実施形態5]アルカリ処理の前にブチル化ヒドロキシトルエン(BHT)を添加するステップをさらに含む、実施形態1に記載の方法。
[実施形態6]アルカリ溶液が水性水酸化カリウム(KOH)である、実施形態1に記載の方法。
[実施形態7]約0.6〜0.7M KOHが使用される、実施形態6に記載の方法。
[実施形態8]約2.5mMのBHTが使用される、実施形態5に記載の方法。
[実施形態9]対象から得られた試料中の少なくとも1種のエイコサノイドの、対照と比較したレベルの増加がNASHを示す、実施形態3に記載の方法。
[実施形態10]試料中のオメガ-3脂肪酸DHA及び/又は17-HDoHEのレベルを測定するステップをさらに含み、対照と比較した増加がNASHを示す、実施形態1に記載の方法。
[実施形態11]エイコサノイドが液体クロマトグラフィーにより測定される、実施形態1に記載の方法。
[実施形態12]脂肪酸がガスクロマトグラフィー質量分析法により測定される、実施形態10に記載の方法。
[実施形態13]対象における非アルコール性脂肪性肝炎(NASH)を非アルコール性脂肪肝(NAFL)と区別する方法であって、
(a)対象から生物試料を得るステップ、
(b)試料をアルカリ溶液で処理するステップ、
(c)処理された試料からエイコサノイド及び脂肪酸を回収するステップ、並びに、
(d)対象から得られた生物試料中の少なくとも1種のバイオマーカーレベルを、NAFLであることが分かっている対照試料と比較するステップを含み、対象から得られた試料中の少なくとも1種のバイオマーカーの、対照と比較したレベルの増加がNASHを示し、さらに、バイオマーカーが8-HETrE、15-HETrE、DHA、17-HDoHE及びこれらの任意の組合せからなる群から選択される、上記方法。
[実施形態14]エイコサノイドが、60%超で回収される、実施形態13に記載の方法。
[実施形態15]少なくとも1種のバイオマーカーが、8-HETrE又は15-HETrEを含む、実施形態13に記載の方法。
[実施形態16]生物試料が、血液、血漿及び血清からなる群から選択される、実施形態13に記載の方法。
[実施形態17]アルカリ処理の前にブチル化ヒドロキシトルエン(BHT)を添加するステップをさらに含む、実施形態31に記載の方法。
[実施形態18]アルカリ溶液が、水性水酸化カリウム(KOH)である、実施形態13に記載の方法。
[実施形態19]約0.6〜0.7M KOHが使用される、実施形態18に記載の方法。
[実施形態20]約2.5mM BHTが使用される、実施形態17に記載の方法。
[実施形態21]試料中のオメガ-3脂肪酸DHA及び/又は17-HDoHEのレベルを測定するステップをさらに含み、対照と比較した増加がNASHを示す、実施形態15に記載の方法。
[実施形態22]エイコサノイドが液体クロマトグラフィーにより測定される、実施形態13に記載の方法。
[実施形態23]試料中の脂肪酸が、ガスクロマトグラフィー質量分析法により測定される、実施形態13に記載の方法。
[実施形態24]5-HETE、8-HETE、11-HETE、15-HETE、13-HODE、9-oxoODE及びこれらの任意の組合せからなる群から選択される炎症誘発性エイコサノイドのレベルを測定するステップをさらに含み、NAFL対照より低い上記のいずれかのレベルがNASHを示す、実施形態13に記載の方法。
本開示をその特定の実施形態と共に記載してきたが、上記の記載及び以下の実施例は、本開示の範囲を例示するが制限しないことを意図されることを理解されたい。本開示の範囲内のその他の態様、利点及び改変は、本開示の分野の技術者にとって明らかであると予想される。
Claims (19)
- 対象における非アルコール性脂肪性肝炎(NASH)を非アルコール性脂肪肝(NAFL)と区別する方法であって、
(a)対象から得られた生物試料を約0.6〜0.7M水酸化カリウム(KOH)を含むアルカリ溶液で処理してエステル化エイコサノイドを加水分解し、加水分解されたエイコサノイドを回収するステップ、及び、
(b)対象から得られた処理した生物試料中の少なくとも8-HETrE及び/又は15-HETrEのレベルをNAFL対象から得られた対照試料と比較するステップ
を含み、対象から得られた試料中の少なくとも8-HETrE及び/又は15-HETrEの、対照と比較したレベルの差がNASHを示す、上記方法。 - エイコサノイドの60%超が対象の処理した生物試料から回収される、請求項1に記載の方法。
- 生物試料が、血液、血漿及び血清からなる群から選択される、請求項1に記載の方法。
- アルカリ処理の前にブチル化ヒドロキシトルエン(BHT)を添加するステップをさらに含む、請求項1に記載の方法。
- 約2.5mMのBHTが使用される、請求項4に記載の方法。
- 対象から得られた試料中の少なくとも8-HETrE及び/又は15-HETrEの、対照と比較したレベルの増加がNASHを示す、請求項1に記載の方法。
- 試料中のオメガ-3脂肪酸DHA及び/又は17-HDoHEのレベルを測定するステップをさらに含み、対照と比較した増加がNASHを示す、請求項1に記載の方法。
- エイコサノイドが液体クロマトグラフィーにより測定される、請求項1に記載の方法。
- 脂肪酸がガスクロマトグラフィー質量分析法により測定される、請求項7に記載の方法。
- 対象における非アルコール性脂肪性肝炎(NASH)を非アルコール性脂肪肝(NAFL)と区別する方法であって、
(a)対象から得られた生物試料を約0.6〜0.7M KOHを含むアルカリ溶液で処理するステップ、
(b)処理された試料からエイコサノイド及び脂肪酸を回収するステップ、並びに、
(c)対象から得られた生物試料中の少なくとも1種のバイオマーカーレベルを、NAFLであることが分かっている対照試料と比較するステップ
を含み、対象から得られた試料中の少なくとも1種のバイオマーカーの、対照と比較したレベルの増加がNASHを示し、さらに、バイオマーカーが8-HETrE及び/又は15-HETrEと、DHA、17-HDoHE及びこれらの任意の組合せからなる群から選択される1つの追加のバイオマーカーとである、上記方法。 - エイコサノイドの60%超が対象の処理した生物試料から回収される、請求項10に記載の方法。
- 少なくとも1種のバイオマーカーが、8-HETrE及び15-HETrEを含む、請求項10に記載の方法。
- 生物試料が、血液、血漿及び血清からなる群から選択される、請求項10に記載の方法。
- アルカリ処理の前にブチル化ヒドロキシトルエン(BHT)を添加するステップをさらに含む、請求項10に記載の方法。
- 約2.5mM BHTが使用される、請求項14に記載の方法。
- 試料中のオメガ-3脂肪酸DHA及び/又は17-HDoHEのレベルを測定するステップをさらに含み、対照と比較した増加がNASHを示す、請求項12に記載の方法。
- エイコサノイドが液体クロマトグラフィーにより測定される、請求項10に記載の方法。
- 試料中の脂肪酸が、ガスクロマトグラフィー質量分析法により測定される、請求項10に記載の方法。
- 5-HETE、8-HETE、11-HETE、15-HETE、13-HODE、9-oxoODE及びこれらの任意の組合せからなる群から選択される炎症誘発性エイコサノイドのレベルを測定するステップをさらに含み、NAFL対照より低い上記のいずれかのレベルがNASHを示す、請求項10に記載の方法。
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