JP4045558B2 - Anti-gelatin antibody assay - Google Patents

Anti-gelatin antibody assay Download PDF

Info

Publication number
JP4045558B2
JP4045558B2 JP07333396A JP7333396A JP4045558B2 JP 4045558 B2 JP4045558 B2 JP 4045558B2 JP 07333396 A JP07333396 A JP 07333396A JP 7333396 A JP7333396 A JP 7333396A JP 4045558 B2 JP4045558 B2 JP 4045558B2
Authority
JP
Japan
Prior art keywords
gelatin
fraction
derived
antibody
animal species
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 - Lifetime
Application number
JP07333396A
Other languages
Japanese (ja)
Other versions
JPH09229932A (en
Inventor
司甫 横山
Original Assignee
コラーゲン技術研修会有限会社
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 by コラーゲン技術研修会有限会社 filed Critical コラーゲン技術研修会有限会社
Priority to JP07333396A priority Critical patent/JP4045558B2/en
Publication of JPH09229932A publication Critical patent/JPH09229932A/en
Application granted granted Critical
Publication of JP4045558B2 publication Critical patent/JP4045558B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Jellies, Jams, And Syrups (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、
イ、血液中の抗ゼラチン抗体、そのアレルゲンとなるゼラチン動物種及びその分画を測定する方法と試薬
ロ、特定動物のみから得られるゼラチンと、これを添加した食品・薬剤に関する物である。
【0002】
【従来の技術】
従来、ゼラチンアレルギー者を発見するには、反応を起こした食品や薬剤の共通成分を推定いくのが一般的で、時間を要した。又、専門医にゼラチンアレルギー者と診断されても、ゼラチンは、様々な食品や薬剤に微量ずつ含まれているのでどの食品を避けるべきか不明で、又ゼラチンアレルギー者用の食品もない。
更にゼラチンアレルギー者は、一般に用いられる薬剤、例えば疾病予防の為に当然投与されるべき必要なワクチンも、ゼラチンを含む為、時には避けなくてはならなかった。
【0003】
【発明が解決しょうとする課題】
本発明者は、長い間、ゼラチンアレルギー者の簡便な発見方法、食品・薬剤中の微量ゼラチンの検出方法、及びゼラチンアレルギー者用の食品・薬剤の研究に努めた。
【0004】
【課題を解決するための手段】
その結果、本発明者は、ゼラチンアレルギー者の簡便な発見方法として、下記1、2、4、3を確立した。
【0005】
1血液中の抗ゼラチン抗体とその由来動物種を免疫反応を用いて測定する方法とその試薬。
ヒト血清中の抗ゼラチン抗体を、酵素免疫反応(ELISA)で測定する時、どの種のゼラチンと交叉するか知る為、あらかじめ動物種が明確なゼラチンを、種別にプレートにコートする事、及び抗ゼラチン抗体として、IgEを捕捉する為、第二抗体として、抗ヒトIgE抗体を用いる測定法及びその試薬。
つまり試薬として、1)各種動物由来のゼラチンをコートしたプレート2)酵素標識抗ヒトIgE抗体3)発色基質(TMB,過酸化水素)4)反応停止液(硫酸)を用い、一般の酵素免疫反応によりヒト血清を検体として測定する。
【0006】
もちろん、免疫反応として、酵素免疫反応に限定されず、RIA,免疫発光法、凝集反応他を含み、酵素標識の抗体としては、ポリクローナル又はモノクローナル抗体を問わず、又それを放射性物質、発光物質で標識した物、無標識物でも良い。
プレートをゼラチンでコートする時、プレート毎に動物種を変えても良いが、同一プレートの穴毎にかえて、パネルにする方が望ましい。同一検体と複数のゼラチンとの反応を、一目で観察できるからである。又、動物種毎にプレートや穴に、マークや色をつければ識別しやすい。
用いるゼラチンの動物種としては、ウシ、ブタ、ニワトリ、羊、鮭、タコ等、又これに限定されない。
単に、ゼラチン抗体を検出するなら、プレートにコートするゼラチンは、複数種を混合したもので良いが、それでは、避けるべきゼラチンの動物種までは明確に成らない。更に第二抗体は、抗ヒトIgE抗体に限定されず、抗ヒトイムノグロブリン抗体でも良いが、抗ヒトIgE抗体の方が望ましい。
【0007】
2血液中の抗特定分画ゼラチン抗体を免疫反応を用いて測定する方法と試薬。
各動物種のゼラチンを電気泳動で分画した後、この各分画を採取し、前述「1」と同様に、プレートにコートする。他は前述「1」と同様の試薬と測定法である。これにより、抗ゼラチン抗体と反応する動物種のみならず、反応するゼラチンの分画まで確定できる。
【0008】
3ゼラチンを用いた皮内注射法とその注射剤
各動物種由来の微量のゼラチンを、例えばウシ、ニワトリ、サケの、1μg〜0.01μg/mlを各別個のリン酸バッファーに溶解し、その0.1ml〜0.01mlを皮内注射し、その部位に発赤を生じる時にどの動物種由来のゼラチンに陽性かを判定できる。
この時、ゼラチンは、前述「2」の電気泳動分画を用いれば、より適格にアレルゲンを推定できる。
ゼラチンの注射量は、濃度0.01μg/mlの液を、0.01ml投与で、充分であるが、これに限定されない。溶解液は、リン酸バッファーが望ましいが、それ自身が反応に影響を与えないものであれば、代用できる。
【0009】
4ゼラチンを用いたパッチ反応法とその試薬。
各種動物由来の、例えばウシ、ニワトリ、鮭由来の微量のゼラチン、例えば1mg〜0.5μg/平方cmを各別個のパッチに付着させ、これを、通常のパッチ試験と同様、背部に貼り、その部位に発赤を生じる時、どの動物由来のゼラチンに陽性か判定できる。
この時、ゼラチンは、前述「2」の電気泳動分画を用いれば、より適格にアレルゲンを推定できる。
【0010】
従来ゼラチンアレルギーと称されていた人が、全ての動物由来のゼラチンに反応するものではなく、ウシ由来のみに反応することを発見した。又、特定分画としてウシ由来α2のみと反応した。他方各種市販ゼラチンを調べたところその由来は全てウシであった。ウシがゼラチンの原料として繁用されるから、いわゆるゼラチンアレルギー者は、ウシ由来のゼラチンのみに反応するのである。ゼラチンとしてブタが汎用されれば、ゼラチンアレルギー者のアレルゲンは、ブタゼラチンに特定される可能性を示す。
これは、「ゼラチンはコラーゲンの変性したものであり、コラーゲンは構造上動物種差がないから、どの動物由来のゼラチンも一緒だろう。だから、ゼラチンアレルギー者は、全ての動物由来のゼラチンに反応するはずだ。」と言う一般の思い込みを否定するものであった。
つまり、ゼラチンは、構造上、機能上、由来動物の種差はないが、アレルギー反応のような免疫上の違いを示すと言う事である。
本発明者は、以上の発明と発見から、更に下記5・6の発明を完成した。
【0011】
5食品・薬剤中のゼラチンの存在と、その由来動物種を免疫反応を用いて測定する方法と試薬。
例えば、食品や薬剤、具体的には、ケーキやワクチン中のゼラチンの存在と、その由来動物種を知る為、サンドイッチ法による酵素免疫反応(ELISA)で測定する時、サンドイッチ法の一方又は両方を、特定動物種のゼラチンにのみ反応する抗ゼラチン抗体を用いることを特長とする測定法及びその試薬である。
試薬としては、1)特定動物種のゼラチンに反応する抗ゼラチン抗体をコートしたプレート2)特定動物種のゼラチンに反応する酵素標識抗体3)発色基質(TMB、過酸化水素)4)反応停止液(硫酸)を用い一般の酵素免疫反応により、食品又は薬剤を検体として測定する。
食品や薬剤が直接検体として用い難い形状の時は、これを強酸(又はアルカリ)で処理すれば、ゼラチンが抽出されるので、強酸(又はアルカリ)を除き、適当な緩衝液、例えばリン酸バッファーに溶解させて検体とする。
免疫反応としては、酵素免疫反応のみでなく、RIA、免疫発光法、凝集反応他を含み、サンドイッチ法で使用する抗体はポリクローナル又はモノクローナル抗体を問わず、又、それを、酵素、放射性物質、発光物質で標識したものでも良い。特定動物種としては、ウシ、ブタ、ニワトリ、鮭に限定されない。
【0012】
6特定動物由来のゼラチンとこれを含む食品、薬剤。
特定動物由来のゼラチンを得るには、ゼラチン製造時には、単一動物種のみを扱い、得られたゼラチンを他種のものと混合しない。
ウシゼラチンは、その骨を原料とし、強酸(強アルカリ)、脱灰の処理で製するが、他の動物でも、例えば、ブタ、羊、ニワトリでも同様に可能で有る。
動物でも、魚類は、例えば鮭は、皮を用いる。軟体類は、例えばタコ、イカは、そのまま用いる。又、ウシ、ブタ、羊、ニワトリは、皮も利用できる。
皮を原料とする時は、真皮のみを用いる事が望ましい。軟体類や皮からの場合、強酸(強アルカリ)に漬け、加熱することで抽出される。
ゼラチンの製法は、本法に限定されず、例えば、コラーゲんを製し、これを、加熱変性させても良い。
【0013】
これら、各種由来のゼラチンを、従来の原料不明のゼラチンに代えて、食品や薬剤に加えれば、特定動物由来のゼラチンを含む食品・薬剤が得られる。特定動物由来のゼラチンを、できるだけ多くそろえることは、将来、ウシ以外の動物ゼラチンにアレルギーが現れた時に、有用である。
食品に加えるゼラチンは、その食味の点から他の材料に代え難い。例えば、ゼラチンゼリーや、煮凝である。
薬剤に加えるゼラチンは、薬剤の安定化の為に代え難い。例えば、ワクチンやカプセルである。ワクチンに、代用物質としてウシ血清アルブミンやヒト血清アルブミンを加える事は、抗原性、安全性で問題がある。
又、ワクチンは、時に、ゼラチンを培地として用い、ふけい剤として用いる。
これらの時、一般に用いられるゼラチンに代えて、特定動物種、例えば、ニワトリ由来のゼラチンを使用すれば、従来製していたものと同じ食品や薬剤が、同じ製法で得られ、同じ効果を得られ、ウシゼラチンアレルギー者は安心して利用できる。
【0014】
【実施例1】
ゼラチンアレルギー患者血清中の抗ゼラチン抗体とその由来動物種を測定した。健常者血清を対照とし、次の試薬で酵素免疫反応を行った。
試薬1、ウシ(タイプIコラーゲン型)ゼラチン、ニワトリ(タイプIコラーゲン型)ゼラチン、鮭由来ゼラチンを各0.5μg/穴をコートしたマイクロプレート
試薬2、HRP標識抗ヒトIgE抗体(ラット由来ポリクローナル)
試薬3、TMB試薬(TMB0.1%,過酸化水素0.02%、0.1Mクエン酸緩衝液)
試薬4、反応停止液(0.5M硫酸)
検体は、リン酸緩衝液で100倍に希釈し、100μl/穴を用いた。
測定方法:試薬1に検体100μl/穴→2時間インキュベーション及び洗浄→試薬2、100μl/穴→1時間インキュベーションおよび洗浄→試薬3、100μl→30分インキュベーション→試薬4、50μl→測定(吸光度450nm)
結果:検体中には、抗ウシゼラチン抗体が認められたが、抗ニワトリゼラチン抗体、抗鮭ゼラチン抗体は認められなかった。よって、このゼラチンアレルギー患者は、ウシゼラチンアレルギーで、ウシゼラチンのみ避ければ良い。又、本法は、血清中の抗ゼラチン抗体の存在とその由来動物種を測定する方法となり得る。
【0015】
実施例2
ウシ由来ゼラチンを電気泳動により分画した。この分画の中から、α1とα2を、「実施例2」の「試薬1」を置き換え「実施例2」と同様の実験を行った。
結果:検体中の抗ウシ由来ゼラチン抗体はα2分画にのみ反応し、α1分画とは反応しなかった。よって、このゼラチンアレルギー患者は、ウシα2分画のみがアレルゲンで、ウシ由来ゼラチンを食品や薬剤に用いる時、α2分画を除いて用いれば良い。
【0016】
実施例3
ゼラチンアレルギー者にウシ由来ゼラチン、ニワトリ由来ゼラチン、サケ由来ゼラチンの各0.001μg/10μlリン酸バッファーを皮内注射した。
又、日をあらため、これらの注射薬を、同量、同一人に皮下注射した。
結果:皮内注射後、ウシ由来ゼラチンのみ、翌日に発赤を示し、ニワトリ及びサケ由来ゼラチンは発赤を観察されなかった。皮下注射似ついても、異常がなかった。
よって、ゼラチンを用いた皮内注射反応法は、ゼラチンアレルギー患者の発見と、そのゼラチン由来種を明確にする。又、非ウシ由来ゼラチンを含む注射薬剤はウシゼラチンアレルギー者に安全に投与し得る。
【0017】
【実施例4】
ゼラチンアレルギー患者の背部に、ウシ由来ゼラチン、ニワトリ由来ゼラチン、サケ由来ゼラチンの100μg/9平方ミリメートルのガーゼをしっかりと貼り付けた。
結果:付着後、ウシ由来ゼラチンのみが、2日後赤色斑を示し、ニワトリ及びワケ由来ゼラチンには赤色斑が観察されなかった。よって、ゼラチンを用いたパッチ反応法は、ゼラチンアレルギー患者の発見と、そのアレルギー由来種を明確にする。
【0018】
【実施例5】
食品及び薬剤のゼラチンの存在とその由来動物を測定した。ゼラチンを大量に含む水菓子及びMMRワクチンを検体とし、次の試薬で酵素免疫反応を行った。対象検体には、ウシゼラチン、ニワトリゼラチン(共にタイプIコラーゲン型)を使用した。
試薬1、抗ウシ(タイプIコラーゲン型)ゼラチン抗体、抗ニワトリ(タイプIコラーゲン型)ゼラチン抗体を各0.5μg/穴をコートしたマイクロプレート
試薬2−1、HRP標識抗ウシ(タイプIコラーゲン型)ゼラチン抗体
試薬2−2、HRP標識抗ニワトリ(タイプIコラーゲン型)ゼラチン抗体
試薬3、TMB試薬(TMB0.1%,過酸化水素0.02%、0.1Mクエン酸緩衝液)
試薬4、反応停止液(0.5M硫酸)
検体は、リン酸緩衝液に溶解させ、100μl/穴を用いた。
測定方法:試薬1に検体100μl/穴→2時間インキュベーション及び洗浄→試薬2−1、2−2、各100μl/穴→1時間インキュベーションおよび洗浄→試薬3、100μl→30分インキュベーション→試薬4、50μl→測定(吸光度450nm)し、OD値の高さで判定。
結果:検体中には、ウシ由来ゼラチンが認められたが、ニワトリ由来ゼラチンは認められなかった。よって、本法は、食品・薬剤中のゼラチンの存在とその由来動物種を測定する方法となり得る。
【0019】
【実施例6】
ゼラチンアレルギー者に、ウシ由来ゼラチン、ニワトリ由来ゼラチン、サケ由来ゼラチン各0.03%含有0.01Mクエン酸水10mlを口くう内に20秒間含ませ、吐き出させた後、観察した。
結果:ウシ由来ゼラチンの時のみ、口くう内に発赤が見られたが、ニワトリ由来ゼラチン及びサケ由来ゼラチンの時には、口くう内に変化は見られなかった。よって、非ウシ由来ゼラチンを用いた食品や内服薬剤はウシゼラチンアレルギー者に使用できる。
【0020】
【実施例7】
鮭由来ゼラチン、ニワトリ皮膚由来ゼラチンを、別々に、温湯で希釈した出汁に加え、加熱した後、冷却し、鮭由来ゼラチンとニワトリゼラチン由来の煮凝を得た。ウシゼラチンアレルギー者に、各10gを、食してもらったが、まったく変化はなかった。
これにより、単一動物由来のゼラチンを加えた食品が得られる事、非ウシゼラチン添加の食品を、ウシゼラチンアレルギー者は、食することができることが明らかである。
【0021】
【実施例8】
ニワトリ由来ゼラチンを3%濃度に、0.01M酢酸に溶解させた後、乾燥させて、シート状にした。このシートで、乳糖100mgを包み、ウシゼラチンアレルギー者に、内服してもらったが、まったく変化は見られなかった。
これにより、非ウシ由来のゼラチンは、ウシゼラチンアレルギー者に、カプセルとして使用できる。
【0022】
【発明の効果】
従来、ゼラチンアレルギーは、卵、牛乳、そば等の食物アレルギーと同様切実な問題であった。卵、牛乳、そばは、その食品を食べなければ済むが、ゼラチンは、そのままの形の事はなく、安定剤として薬剤に、食感剤として食品に、又その他の理由で、多くの食品、薬剤に含まれている。しかし含有を示されていることは少ない。
それ故、薬剤や食品で、異常反応を示した時、主成分以外のゼラチンが原因であることを特定することは困難であった。又、ゼラチンがアレルゲンと判明しても、避けるべき食品は不明であった。治療上、予防上、必要な薬剤を使用するのに不安であった。
本発明は、このような状況を憂慮し、ゼラチンアレルギー者を見つけだし、アレルゲンとなる動物種のゼラチン及びその分画を特定し、避けるべき食品、薬剤を示すことを可能にし、更に彼等の為に必要な食品と薬剤の供給を可能にした。
[0001]
[Industrial application fields]
The present invention
(A) Anti-gelatin antibodies in blood, gelatin animal species as allergens thereof, methods and reagents for measuring fractions thereof, gelatin obtained from specific animals only, and foods and drugs to which these are added.
[0002]
[Prior art]
Conventionally, it has been common to estimate the common components of foods and drugs that have caused reactions in order to find gelatin allergic individuals. Even if a specialist diagnoses a person who is allergic to gelatin, gelatin is contained in various foods and medicines in minute amounts, so it is unclear which food should be avoided, and there is no food for people with gelatin allergies.
In addition, gelatin allergies sometimes had to be avoided because commonly used drugs, such as vaccines that should be naturally administered for disease prevention, also contain gelatin.
[0003]
[Problems to be solved by the invention]
For a long time, the present inventor has sought to study a simple method for finding a gelatin allergic person, a method for detecting a minute amount of gelatin in a food or drug, and a food or drug for a gelatin allergic person.
[0004]
[Means for Solving the Problems]
As a result, the present inventor has established the following 1, 2, 4, and 3 as a simple method for finding a gelatin allergic person.
[0005]
(1) A method and reagent for measuring an anti-gelatin antibody in blood and animal species derived from the antibody using an immune reaction.
When measuring anti-gelatin antibody in human serum by enzyme immunoreaction (ELISA), in order to know which kind of gelatin crossover, it is necessary to coat the plate with a specific type of gelatin in advance, A measurement method using an anti-human IgE antibody as a second antibody and a reagent for capturing IgE as a gelatin antibody.
In other words, 1) Plate coated with gelatin derived from various animals 2) Enzyme-labeled anti-human IgE antibody 3) Chromogenic substrate (TMB, hydrogen peroxide) 4) Reaction stop solution (sulfuric acid) To measure human serum as a specimen.
[0006]
Of course, the immune reaction is not limited to the enzyme immune reaction, but includes RIA, immunoluminescence method, agglutination reaction, etc. The enzyme-labeled antibody may be a polyclonal or monoclonal antibody, and may be a radioactive substance or a luminescent substance. It may be labeled or unlabeled.
When the plate is coated with gelatin, the animal species may be changed from plate to plate, but it is preferable to change the plate to a panel instead of every hole in the same plate. This is because the reaction between the same specimen and a plurality of gelatins can be observed at a glance. In addition, it is easy to identify each animal species by adding marks and colors to the plates and holes.
The animal species of gelatin to be used is not limited to cattle, pigs, chickens, sheep, rabbits, octopuses and the like.
If the gelatin antibody is simply detected, the gelatin coated on the plate may be a mixture of a plurality of species, but this does not clearly define the animal species of gelatin to be avoided. Further, the second antibody is not limited to the anti-human IgE antibody, and may be an anti-human immunoglobulin antibody, but the anti-human IgE antibody is more preferable.
[0007]
(2) A method and reagent for measuring an anti-specific fraction gelatin antibody in blood using an immune reaction.
After gelatin of each animal species is fractionated by electrophoresis, each fraction is collected and coated on a plate in the same manner as in “1” above. Others are the same reagents and measurement methods as in the above-mentioned “1”. Thereby, not only the animal species that react with the anti-gelatin antibody but also the fraction of the gelatin that reacts can be determined.
[0008]
3 Intradermal injection method using gelatin and its injection A small amount of gelatin derived from each animal species, for example, 1 μg to 0.01 μg / ml of bovine, chicken and salmon is dissolved in each separate phosphate buffer, When 0.1 ml to 0.01 ml is injected intradermally and redness occurs at the site, it can be determined which animal species-derived gelatin is positive.
At this time, gelatin can estimate the allergen more appropriately by using the electrophoresis fraction of “2”.
As for the injection amount of gelatin, 0.01 ml of a solution having a concentration of 0.01 μg / ml is sufficient, but is not limited thereto. The lysis solution is preferably a phosphate buffer, but can be substituted if it does not affect the reaction itself.
[0009]
4 Patch reaction method using gelatin and its reagent.
A small amount of gelatin derived from various animals, such as bovine, chicken, and rabbit, for example, 1 mg to 0.5 μg / cm 2 is attached to each individual patch, and this is applied to the back as in a normal patch test. When redness occurs in a region, it can be determined which animal-derived gelatin is positive.
At this time, gelatin can estimate the allergen more appropriately by using the electrophoresis fraction of “2”.
[0010]
It has been discovered that a person previously called gelatin allergy does not react to all animal-derived gelatin, but only cattle-derived. Moreover, it reacted only with bovine-derived α2 as a specific fraction. On the other hand, when various commercially available gelatins were examined, their origin was all bovine. Since cattle are frequently used as a raw material for gelatin, so-called gelatin allergic individuals react only to bovine-derived gelatin. If pigs are widely used as gelatin, allergens of people with gelatin allergies may be identified as porcine gelatin.
This is because “gelatin is a modified form of collagen and there is no animal species difference in the structure of collagen, so any animal-derived gelatin will be together. So, allergic to gelatin will react to gelatin from all animals. It was a denial of the general belief.
In other words, gelatin is structurally and functionally different from species of origin, but it shows immune differences such as allergic reactions.
The present inventor completed the following inventions 5 and 6 based on the above inventions and discoveries.
[0011]
5. Method and reagent for measuring the presence of gelatin in foods and medicines and the animal species derived from it using immune reaction.
For example, in order to know the presence of gelatin in foods and drugs, specifically cakes and vaccines, and the animal species derived from it, when measuring by enzyme-linked immunosorbent assay (ELISA) using the sandwich method, one or both of the sandwich methods are used. And a reagent and its measuring method characterized by using an anti-gelatin antibody that reacts only with gelatin of a specific animal species.
The reagents are as follows: 1) Plate coated with anti-gelatin antibody that reacts with gelatin of specific animal species 2) Enzyme-labeled antibody that reacts with gelatin of specific animal species 3) Chromogenic substrate (TMB, hydrogen peroxide) 4) Reaction stop solution A food or drug is measured as a specimen by a general enzyme immunoreaction using (sulfuric acid).
When it is difficult to use food or drug directly as a specimen, if it is treated with a strong acid (or alkali), gelatin is extracted. Therefore, an appropriate buffer solution such as a phosphate buffer can be used except for the strong acid (or alkali). Dissolve the sample to make a sample.
The immune reaction includes not only enzyme immune reaction but also RIA, immunoluminescence method, agglutination reaction, etc. The antibody used in the sandwich method may be polyclonal or monoclonal antibody, and it can be expressed as enzyme, radioactive substance, luminescence. It may be labeled with a substance. Specific animal species are not limited to cattle, pigs, chickens, and rabbits.
[0012]
6 Gelatin derived from specific animals and foods and drugs containing the same.
In order to obtain gelatin derived from a specific animal, only a single animal species is handled during gelatin production, and the obtained gelatin is not mixed with other species.
Bovine gelatin is produced from its bone as a raw material by a strong acid (strong alkali) and decalcification treatment, but it can be similarly applied to other animals, for example, pigs, sheep and chickens.
Even in animals, fish use skins, for example, salmon. For example, octopus and squid are used as they are. Cows, pigs, sheep and chickens can also be used with skin.
When using leather as the raw material, it is desirable to use only the dermis. In the case of mollusks and skin, it is extracted by soaking in a strong acid (strong alkali) and heating.
The manufacturing method of gelatin is not limited to this method, For example, collagen may be manufactured and this may be heat-denatured.
[0013]
If these various gelatins are added to foods and drugs in place of conventional gelatins whose raw materials are unknown, foods and drugs containing gelatin derived from specific animals can be obtained. Having as much gelatin as possible from a specific animal is useful when allergies appear in animal gelatin other than bovine in the future.
Gelatin added to food is difficult to replace with other ingredients because of its taste. For example, gelatin jelly or boiled.
Gelatin added to the drug is difficult to replace for drug stabilization. For example, vaccines and capsules. Adding bovine serum albumin or human serum albumin as a substitute substance to a vaccine has problems in antigenicity and safety.
Also, vaccines sometimes use gelatin as a medium and as a dandruff agent.
In these cases, if gelatin derived from a specific animal species, such as chicken, is used instead of gelatin generally used, the same foods and drugs as those conventionally produced can be obtained by the same manufacturing method, and the same effect can be obtained. It can be safely used by those who are allergic to bovine gelatin.
[0014]
[Example 1]
Anti-gelatin antibodies and their derived animal species in the serum of gelatin allergy patients were measured. Serum of healthy subjects was used as a control, and an enzyme immunoreaction was performed with the following reagents.
Reagent 1, microplate reagent 2 coated with 0.5 μg / well each of bovine (type I collagen type) gelatin, chicken (type I collagen type) gelatin, and rabbit-derived gelatin, HRP-labeled anti-human IgE antibody (rat-derived polyclonal)
Reagent 3, TMB reagent (TMB 0.1%, hydrogen peroxide 0.02%, 0.1M citrate buffer)
Reagent 4, reaction stop solution (0.5M sulfuric acid)
The specimen was diluted 100 times with a phosphate buffer, and 100 μl / well was used.
Measurement method: 100 μl / well of specimen in reagent 1 → 2 hours incubation and washing → reagent 2, 100 μl / well → 1 hour incubation and washing → reagent 3, 100 μl → 30 minutes incubation → reagent 4, 50 μl → measurement (absorbance 450 nm)
Result: Anti-bovine gelatin antibody was observed in the specimen, but anti-chicken gelatin antibody and anti-wrinkle gelatin antibody were not observed. Therefore, this gelatin allergic patient is allergic to bovine gelatin and only bovine gelatin should be avoided. In addition, this method can be a method for measuring the presence of anti-gelatin antibodies in serum and the animal species derived from them.
[0015]
Example 2
Bovine gelatin was fractionated by electrophoresis. From this fraction, α1 and α2 were replaced with “Reagent 1” in “Example 2”, and the same experiment as in “Example 2” was performed.
Results: The anti-bovine-derived gelatin antibody in the sample reacted only with the α2 fraction and did not react with the α1 fraction. Therefore, in this gelatin allergic patient, only the bovine α2 fraction is the allergen, and when the bovine-derived gelatin is used for foods and drugs, the α2 fraction may be used.
[0016]
Example 3
Those who were allergic to gelatin were injected intradermally with 0.001 μg / 10 μl phosphate buffer of bovine-derived gelatin, chicken-derived gelatin, and salmon-derived gelatin.
In addition, these injections were subcutaneously injected to the same person in the same amount for another day.
Result: After intradermal injection, only bovine-derived gelatin showed redness the following day, and chicken and salmon-derived gelatin did not show redness. There was no abnormality even after subcutaneous injection.
Therefore, the intradermal injection reaction method using gelatin clarifies the discovery of gelatin allergy patients and the gelatin-derived species. Injectable drugs containing non-bovine derived gelatin can be safely administered to those who are allergic to bovine gelatin.
[0017]
[Example 4]
100 μg / 9 square millimeter gauze of bovine-derived gelatin, chicken-derived gelatin, and salmon-derived gelatin was firmly attached to the back of a gelatin allergy patient.
Results: After attachment, only bovine-derived gelatin showed red spots after 2 days, and no red spots were observed on chicken and salmon-derived gelatin. Therefore, the patch reaction method using gelatin clarifies the discovery of gelatin allergy patients and the allergen-derived species.
[0018]
[Example 5]
The presence of food and drug gelatin and its derived animals were determined. Enzyme immunoreaction was carried out with the following reagents using water confectionery and MMR vaccine containing a large amount of gelatin as samples. Bovine gelatin and chicken gelatin (both type I collagen type) were used as the target specimens.
Reagent 1, anti-bovine (type I collagen type) gelatin antibody, anti-chicken (type I collagen type) gelatin antibody 0.5 μg / well coated microplate reagent 2-1, HRP labeled anti-bovine (type I collagen type) ) Gelatin antibody reagent 2-2, HRP-labeled anti-chicken (type I collagen type) gelatin antibody reagent 3, TMB reagent (TMB 0.1%, hydrogen peroxide 0.02%, 0.1M citrate buffer)
Reagent 4, reaction stop solution (0.5M sulfuric acid)
The specimen was dissolved in a phosphate buffer and 100 μl / well was used.
Measurement method: Reagent 1 100 μl / well → 2 hours incubation and washing → Reagents 2-1 and 2-2, each 100 μl / well → 1 hour incubation and washing → Reagent 3, 100 μl → 30 minutes incubation → Reagent 4, 50 μl → Measure (absorbance: 450 nm) and judge by OD value height.
Result: Bovine-derived gelatin was observed in the specimen, but chicken-derived gelatin was not observed. Therefore, this method can be a method for measuring the presence of gelatin in foods and medicines and the animal species derived from it.
[0019]
[Example 6]
The subjects were allergic to gelatin, and 10 ml of 0.01M citric acid solution containing 0.03% of bovine-derived gelatin, chicken-derived gelatin, and salmon-derived gelatin were each contained in the mouth for 20 seconds.
Results: Redness was seen in the mouth only with bovine-derived gelatin, but no change was seen in the mouth with chicken-derived gelatin and salmon-derived gelatin. Therefore, foods and internal medicines using non-bovine derived gelatin can be used for those who are allergic to bovine gelatin.
[0020]
[Example 7]
Salmon-derived gelatin and chicken skin-derived gelatin were separately added to the broth diluted with warm water, heated and then cooled to obtain boiled cake derived from salmon-derived gelatin and chicken gelatin. A person with bovine gelatin allergies ate 10 g each, but there was no change at all.
As a result, it is clear that foods to which gelatin derived from a single animal is added can be obtained, and those who are allergic to bovine gelatin can eat foods added with non-bovine gelatin.
[0021]
[Example 8]
Chicken-derived gelatin was dissolved in 0.01 M acetic acid at a concentration of 3% and then dried to form a sheet. This sheet wrapped 100 mg of lactose and was taken by a bovine gelatin allergy person, but no change was seen.
As a result, gelatin derived from non-bovine can be used as a capsule for those who are allergic to bovine gelatin.
[0022]
【The invention's effect】
Traditionally, gelatin allergies have been a serious problem, as are food allergies such as eggs, milk and buckwheat. Eggs, milk, and buckwheat do not have to eat the food, but gelatin is not in its original form, it is a drug as a stabilizer, a food as a sensitizer, and for many other reasons, Included in the drug. However, there are few indications of inclusion.
Therefore, it has been difficult to specify that gelatin other than the main component is the cause when the drug or food shows an abnormal reaction. Even if gelatin was found to be an allergen, the food to be avoided was unknown. I was worried about using the necessary medicine for treatment and prevention.
The present invention worries about such a situation, makes it possible to find gelatin allergic individuals, identify gelatins of animal species that become allergens and their fractions, indicate foods and drugs to be avoided, and further The supply of foods and medicines necessary for the plant was made possible.

Claims (5)

各種動物由来のゼラチン又は特定分画ゼラチンとしてα1分画及び又はα2分画を用いて、
試料中の抗ゼラチン抗体又は抗特定分画ゼラチン抗体を測定し、
ゼラチンアレルギーの動物種を特定する方法
Using α1 fraction and / or α2 fraction as gelatin derived from various animals or specific fraction gelatin,
Measure the anti-gelatin antibody or anti-specific fraction gelatin antibody in the sample,
How to identify gelatin-allergic animal species
各種動物由来のゼラチン又は特定分画ゼラチンとしてα1分画及び又はα2分画を用いて、
被検血液中の抗ゼラチン抗体又は抗特定分画ゼラチン抗体を測定し、
ゼラチンアレルギーの動物種を特定する為の測定キット
Using α1 fraction and / or α2 fraction as gelatin derived from various animals or specific fraction gelatin,
Measure the anti-gelatin antibody or anti-specific fraction gelatin antibody in the test blood,
Measurement kit for identifying animal species with gelatin allergy
各種動物由来のゼラチン又は特定分画ゼラチンとしてα1分画及び又はα2分画を用いたゼラチンアレルギー動物種特定用皮内反応検査薬。Gelatin allergic animal species specific intradermal reaction test drug using gelatin derived from various animals or α1 fraction and / or α2 fraction as specific fraction gelatin. ゼラチンアレルギーの動物種を特定する方法において、
各種動物由来のゼラチン又は特定分画ゼラチンとしてα1分画及び又はα2分画を被験者にパッチ付着し、
そのパッチ部位の反応を判定することによる請求項1の方法
In a method of identifying animal species allergic to gelatin,
Applying α1 fraction and / or α2 fraction as a patch to various subjects as gelatin derived from various animals or specific fraction gelatin,
The method of claim 1 by determining the response of the patch site.
ゼラチン含有食品及び薬剤中のゼラチンがどの動物種由来かを特定する方法において、各種動物由来のゼラチン抗体又は特定分画ゼラチン抗体としてα1分画抗体及び又はα2分画抗体を用いることにより、その食品及び薬品中のゼラチン又は特定分画ゼラチンの動物種を免疫反応で判定する方法In a method for specifying which animal species the gelatin-containing food and the gelatin in the drug are derived from, by using an α1 fraction antibody and / or an α2 fraction antibody as a gelatin antibody or a specific fraction gelatin antibody derived from various animals, the food And method for determining animal species of gelatin or specific fraction gelatin in medicine by immune reaction
JP07333396A 1996-02-21 1996-02-21 Anti-gelatin antibody assay Expired - Lifetime JP4045558B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07333396A JP4045558B2 (en) 1996-02-21 1996-02-21 Anti-gelatin antibody assay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07333396A JP4045558B2 (en) 1996-02-21 1996-02-21 Anti-gelatin antibody assay

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2005029727A Division JP4899038B2 (en) 2005-01-07 2005-01-07 Anti-gelatin antibody assay

Publications (2)

Publication Number Publication Date
JPH09229932A JPH09229932A (en) 1997-09-05
JP4045558B2 true JP4045558B2 (en) 2008-02-13

Family

ID=13515150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07333396A Expired - Lifetime JP4045558B2 (en) 1996-02-21 1996-02-21 Anti-gelatin antibody assay

Country Status (1)

Country Link
JP (1) JP4045558B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19643682C1 (en) * 1996-10-23 1998-01-15 Manfred Prof Dr Gareis Method for determining origin of animals or their products

Also Published As

Publication number Publication date
JPH09229932A (en) 1997-09-05

Similar Documents

Publication Publication Date Title
McAdam Changes in human serum amyloid A and C-reactive protein after etiocholanolone-induced inflammation
Mackel et al. Antibodies to collagen in scleroderma
Anderson et al. A comparative study of the allergens of cat urine, serum, saliva, and pelt
Blands et al. Flour allergy in bakers: I. Identification of allergenic fractions in flour and comparison of diagnostic methods
DE2648458C2 (en) Method for the detection of a specific protein and reagent occurring in the serum of cancer patients for carrying out this method
NO315930B1 (en) Use of Thiazolium Compounds in the Preparation of Pharmaceutical Preparations, Compounds Containing the Compounds, and Nyetiazolium Compounds
DE2548963A1 (en) METHOD AND MEANS FOR DETERMINING THE ACTIVITY OF CREATINKINASE-MB
JPWO2010052939A1 (en) Method for detecting epitope of allergen or candidate thereof and use thereof
DE202006020682U1 (en) Means for the diagnosis of rheumatic diseases
DE69730479T2 (en) Marker and immunological reagent for dialysis-related amyloidosis, diabetes mellitus and diabetes mellitus complications
CN103430025A (en) Methods and apparatus for detection of gluten sensitivity, and its differentiation from celiac disease
Richman et al. The important sources of German cockroach allergens as determined by RAST analyses
Rawnsley et al. Cold urticaria with cryoglobulinemia: In a patient with chronic lymphocytic leukemia
DE2900546A1 (en) SPECIFIC BINDING TEST PROCEDURES
CN105004863B (en) Quickly detect colloidal gold immune chromatography test and the preparation method of IgE-binding Subunits in Soybean Proteins β-conglycinin
JP4045558B2 (en) Anti-gelatin antibody assay
DE60035267T2 (en) METHOD FOR ANALYZING THE AMOUNT OF INTRAABDOMINAL FAT TISSUE
Srithunyarat et al. Catestatin and vasostatin concentrations in healthy dogs
CN106645748B (en) A kind of exception lymphatic temperament type impotence disease mammalian serum and testosterone histological difference albumen system and screening technique and application
JP4899038B2 (en) Anti-gelatin antibody assay
DE69510668T2 (en) METHOD FOR DETECTING FINAL PRODUCTS OF ADVANCED GLYCOSYLATION OF HEMOGLOBIN
Findlay et al. Polistes wasp hypersensitivity: diagnosis by venom-induced release of histamine in vitro
Silamut et al. Detection of venom by enzyme linked immunosorbent assay (ELISA) in patients bitten by snakes in Thailand.
JP2011242408A (en) Method of measuring anti-gelatin antibody
CN101142480A (en) Method for measuring allergic response

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 19960520

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20030220

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20030425

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040809

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20041109

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050107

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050318

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050107

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070320

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070403

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071106

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071109

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131130

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term