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JPH0243471B2 - - Google Patents
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JPH0243471B2 - - Google Patents

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Publication number
JPH0243471B2
JPH0243471B2 JP8263084A JP8263084A JPH0243471B2 JP H0243471 B2 JPH0243471 B2 JP H0243471B2 JP 8263084 A JP8263084 A JP 8263084A JP 8263084 A JP8263084 A JP 8263084A JP H0243471 B2 JPH0243471 B2 JP H0243471B2
Authority
JP
Japan
Prior art keywords
uricase
solution
preparation
serum albumin
turbidity
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.)
Expired
Application number
JP8263084A
Other languages
Japanese (ja)
Other versions
JPS60224499A (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8263084A priority Critical patent/JPS60224499A/en
Publication of JPS60224499A publication Critical patent/JPS60224499A/en
Publication of JPH0243471B2 publication Critical patent/JPH0243471B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/96Stabilising an enzyme by forming an adduct or a composition; Forming enzyme conjugates

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

(産業上の利用分野) 本発明はウリカーゼを安定な状態で含有するウ
リカーゼ製剤に関するものである。 (従来技術との関係) ウリカーゼは体液中の尿酸測定に適応され、診
断用酵素材として有用なものである。これらの測
定方法の原理は下記反応式に基づき、生成する過
酸化水素、炭酸ガス、アラントイン又は消費され
る酸素を測定することによる。 尿酸+O2+2H2Oウリカーゼ ―――――→ アラントイン+CO2+H2O2 しかしながらウリカーゼを溶液状態に変換して
使用する場合、溶解時及び保存中に著しい変性が
進んで混濁を発生し、測定精度に重大な悪影響を
及ぼし、安定なウリカーゼ製剤が得難い欠点があ
つた。 従来からウリカーゼ溶液に非イオン界面活性剤
を添加することにより、ウリカーゼ溶液が安定化
され沈澱物を生じないことが公知である(特公昭
48−6556号)。しかしながら、この溶液を凍結乾
燥した後、再溶解させると若干濁りが発生する。 (発明の目的) 本発明者等はかかる欠点を解決するために鋭意
検討した結果、以下に述べる様な組成からなる酵
素製剤とすれば、凍結乾燥後溶解時にも溶液状態
で保存しても前述の様な変性や濁りが生じないこ
とを見出し、本発明を完成するに至つた。 (発明の構成の説明) すなわち本発明は(i)非イオン界面活性剤、(ii)血
清アルブミンおよび/または塩基性アミノ酸およ
び(iii)ウリカーゼを含有することを特徴とする安定
なウリカーゼ製剤である。 本発明のウリカーゼ製剤とは、ウリカーゼを必
須成分として含有する他、非イオン性界面活性剤
および血清アルブミン及び/または塩基性アミノ
酸(以下これらを総称して安定化剤と述べる)を
含有する。 ウリカーゼとしては動物起源、植物起源、微生
物起源など如何なる起源のものでもよいが酵母起
源のものが好ましい。そして本発明におけるウリ
カーゼ製剤としては、上記の如きウリカーゼを単
独で含有するものに限定されず、他の物質、例え
ば尿酸定量に必要な酵素並びに補酵素、更には基
質、発色剤、又これらの安定化に必要な安定剤、
防腐剤成分等を含有するものを総称する。なおウ
リカーゼ製剤は溶液状及び乾燥粉末状等任意の状
態で提供されるものを含む。 本発明で用いられる非イオン性界面活性剤とは
構造式、その他については全く制限がなく、種々
のものを使用することができるが、代表的な非イ
オン性界面活性剤を表示するとポリオキシエチレ
ンアルキルエーテル型、ポリオキシエチレンアル
キルフエノールエーテル型、ポリオキシエチレン
アルキルエステル型等が挙げられる。 又血清アルブミンとしては動物、ヒト由来どち
らでも良い。代表的なものとしてはウシ血清アル
ブミン、ウマ血清アルブミン、ヒト血清アルブミ
ンが例示される。又塩基性アミノ酸としてはアル
ギニン、リジン、ヒスチジン並びにその塩が挙げ
られる。 前述の様な安定化剤の配合割合は安定化作用の
強弱、或は安定化剤自体の化学的安定性、更には
上記各安定化剤の併用等を考慮して定めれば良い
が、一般的な目安を述べるとウリカーゼを含有す
る溶液に対して0.0001%〜10%程度の範囲から選
択すれば確実な効果が得られる。 上記安定化剤を含有するウリカーゼ製剤を得る
に当つては、ウリカーゼ単独もしくはウリカーゼ
に他の酵素、補酵素、基質、発色剤、安定化剤、
防腐剤等の併用剤を配合して溶液を調製する工
程、該溶液に上記安定化剤を添加混合する工程、
並びに必要であれば該溶液を乾燥する工程を組合
わせるが、最初に述べたウリカーゼ溶液の調製に
際しては適切な緩衝液を選択した方が良い。好ま
しくは濃度1〜500mM、PH6.0〜9.5程度に設定し
た緩衝液に溶解することが望ましい。 次に安定化剤の添加混合に当つては上記ウリカ
ーゼ溶液に安定化剤を直接配合するか、該安定化
剤を一旦水あるいは緩衝液に分散乃至溶解してか
ら添加し、常法に従つて撹拌する。最後にこの混
合液を乾燥させたいときは、凍結乾燥や噴霧乾燥
等の常当手段をより用すれば良い。 (発明の効果) 本発明のウリカーゼ製剤は上記の様に構成され
ているので、安定なウリカーゼ製剤が得られ、尿
酸測定精度に対する高い信頼性を与えることがで
き、極めて有用な診断用酵素製剤が提供されるこ
ととなつた。 (実施例) 以下本発明を実施例をもつて説明する。 実施例 1 酵母から得られたウリカーゼを用い、0.1Mホ
ウ酸緩衝液(PH8.0)に10単位/mlとなる様に溶
解し、この溶液に第1表の各化合物を加え、必要
があればPH8.0に再調整した。得られた酵素製剤
溶液をそのまま及び一旦凍結乾燥して再び溶解し
たものについて保存テスト(25℃、5日放置)を
して、濁りの発生を見たのが第1表である。 第1表より明らかな様に非イオン性界面活性
剤、血清アルブミン及び/または塩基性アミノ酸
を添加したものは濁りの生成が少なかつたが、無
添加のものは著しく濁りを発生した。
(Industrial Application Field) The present invention relates to a uricase preparation containing uricase in a stable state. (Relationship with Prior Art) Uricase is applied to the measurement of uric acid in body fluids and is useful as a diagnostic enzyme material. The principles of these measurement methods are based on the following reaction formula and measure hydrogen peroxide, carbon dioxide, allantoin produced, or oxygen consumed. Uric acid + O 2 + 2H 2 O Uricase――――→ Allantoin + CO 2 + H 2 O 2However , when uricase is converted into a solution and used, significant denaturation progresses during dissolution and storage, resulting in turbidity, which makes measurement difficult. It had the disadvantage that it had a serious negative effect on accuracy and made it difficult to obtain a stable uricase preparation. It has been known that adding a nonionic surfactant to a uricase solution stabilizes the uricase solution and prevents the formation of precipitates (Tokuko Sho et al.
No. 48-6556). However, when this solution is redissolved after freeze-drying, some turbidity occurs. (Objective of the Invention) As a result of intensive studies to solve these drawbacks, the inventors of the present invention found that an enzyme preparation having the composition described below can be used even when it is dissolved after freeze-drying or stored in a solution state. The present inventors have discovered that such denaturation and turbidity do not occur, and have completed the present invention. (Description of the structure of the invention) That is, the present invention is a stable uricase preparation characterized by containing (i) a nonionic surfactant, (ii) serum albumin and/or a basic amino acid, and (iii) uricase. . The uricase preparation of the present invention contains uricase as an essential component, as well as a nonionic surfactant, serum albumin, and/or basic amino acids (hereinafter collectively referred to as a stabilizer). The uricase may be of any origin, such as animal origin, plant origin, microbial origin, etc., but yeast origin is preferred. The uricase preparations of the present invention are not limited to those containing uricase alone as described above, but may also contain other substances, such as enzymes and coenzymes necessary for uric acid determination, as well as substrates, coloring agents, and their stabilizers. stabilizers necessary for
A general term for products containing preservatives, etc. Note that uricase preparations include those provided in any form such as a solution or a dry powder. The nonionic surfactant used in the present invention is not limited at all with respect to its structural formula or other aspects, and various types can be used, but typical nonionic surfactants include polyoxyethylene Examples include alkyl ether type, polyoxyethylene alkyl phenol ether type, and polyoxyethylene alkyl ester type. The serum albumin may be derived from either animals or humans. Representative examples include bovine serum albumin, horse serum albumin, and human serum albumin. Basic amino acids include arginine, lysine, histidine, and salts thereof. The mixing ratio of the above-mentioned stabilizers may be determined by considering the strength of the stabilizing effect, the chemical stability of the stabilizer itself, and the combination of each of the above-mentioned stabilizers. As a general guideline, if the amount is selected from the range of about 0.0001% to 10% for the solution containing uricase, reliable effects can be obtained. In order to obtain a uricase preparation containing the above-mentioned stabilizer, uricase alone or uricase combined with other enzymes, coenzymes, substrates, coloring agents, stabilizers,
A step of preparing a solution by blending a concomitant agent such as a preservative, a step of adding and mixing the above-mentioned stabilizer to the solution,
In addition, if necessary, a step of drying the solution may be combined, but it is better to select an appropriate buffer when preparing the uricase solution mentioned at the beginning. It is desirable to dissolve it in a buffer solution preferably set at a concentration of 1 to 500 mM and a pH of about 6.0 to 9.5. Next, when adding and mixing the stabilizer, either directly mix the stabilizer with the above uricase solution, or add the stabilizer after dispersing or dissolving it in water or a buffer solution, and then add it according to the conventional method. Stir. Finally, when it is desired to dry this liquid mixture, conventional means such as freeze drying or spray drying may be used. (Effects of the Invention) Since the uricase preparation of the present invention is configured as described above, a stable uricase preparation can be obtained, and a highly reliable enzyme preparation for uric acid measurement can be obtained, making it an extremely useful diagnostic enzyme preparation. It was decided to be provided. (Example) The present invention will be described below with reference to Examples. Example 1 Using uricase obtained from yeast, dissolve it in 0.1M borate buffer (PH8.0) to a concentration of 10 units/ml, add each compound in Table 1 to this solution, and add as necessary. I readjusted it to PH8.0. Table 1 shows that the obtained enzyme preparation solution was subjected to a storage test (left at 25°C for 5 days) as it was and once freeze-dried and redissolved, and the occurrence of turbidity was observed. As is clear from Table 1, the samples to which a nonionic surfactant, serum albumin and/or basic amino acid were added produced less turbidity, but the ones to which no additives were added produced significant turbidity.

【表】 実施例 2 下記組成からなる酵素製剤を調製した。 ウリカーゼ(酵母起源) 10単位 ペルオキシダーゼ(西洋わさび起源)
100単位 4−アミノアンチピリン 10mg 0.1Mホウ酸緩衝液(PH8.0) 全量1ml そこに第2表の各化合物を加え、必要あればPH
8.0に再調製してから凍結乾燥して得られた酵素
粉末を下記の溶解液10mlに溶解してその保存性
(25℃、5日放置)を濁りの発生で見たのが第2
表である。 (溶解液) 0.1Mリン酸緩衝液(PH7.0) ジエチルアニリン 10mg 第2表より明らかな様に非イオン性界面活性
剤、血清アルブミン及び塩基性アミノ酸を添加し
たものは濁りの生成が少なかつたが、無添加のも
のは著しく濁りを発生した。
[Table] Example 2 An enzyme preparation having the following composition was prepared. Uricase (yeast origin) 10 units Peroxidase (horseradish origin)
100 units 4-aminoantipyrine 10mg 0.1M borate buffer (PH8.0) Total volume 1ml Add each compound in Table 2, and PH8.0 if necessary.
The second test was to dissolve the enzyme powder obtained by freeze-drying after reconstitution to 8.0 in 10 ml of the following solution and check its storage stability (standing at 25°C for 5 days) to see if it became cloudy.
It is a table. (Dissolution solution) 0.1M phosphate buffer (PH7.0) Diethylaniline 10mg As is clear from Table 2, the solution containing nonionic surfactant, serum albumin, and basic amino acids produces less turbidity and However, the one without additives produced significant turbidity.

【表】【table】

【表】【table】

Claims (1)

【特許請求の範囲】[Claims] 1 (i)非イオン性界面活性剤、(ii)血清アルブミン
および/または塩基性アミノ酸および(iii)ウリカー
ゼを含有することを特徴とする安定なウリカーゼ
製剤。
1. A stable uricase preparation, characterized in that it contains (i) a nonionic surfactant, (ii) serum albumin and/or a basic amino acid, and (iii) uricase.
JP8263084A 1984-04-23 1984-04-23 Stable pharmaceutical preparation of uricase Granted JPS60224499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8263084A JPS60224499A (en) 1984-04-23 1984-04-23 Stable pharmaceutical preparation of uricase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8263084A JPS60224499A (en) 1984-04-23 1984-04-23 Stable pharmaceutical preparation of uricase

Publications (2)

Publication Number Publication Date
JPS60224499A JPS60224499A (en) 1985-11-08
JPH0243471B2 true JPH0243471B2 (en) 1990-09-28

Family

ID=13779763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8263084A Granted JPS60224499A (en) 1984-04-23 1984-04-23 Stable pharmaceutical preparation of uricase

Country Status (1)

Country Link
JP (1) JPS60224499A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1338457C (en) * 1986-08-22 1996-07-16 Henry A. Erlich Purified thermostable enzyme
FR2733914B1 (en) * 1995-05-11 1997-08-01 Sanofi Sa STABLE LIQUID COMPOSITION CONTAINING URATE OXYDASE AND LYOPHILIZED COMPOSITION FOR ITS PREPARATION
DE69933485T2 (en) * 1998-04-24 2007-01-11 Sysmex Corp. Method for stabilizing alanine aminotransferase and the corresponding compositions
JP2003000236A (en) * 2001-06-18 2003-01-07 Toyobo Co Ltd Method for stabilizing esterase

Also Published As

Publication number Publication date
JPS60224499A (en) 1985-11-08

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