JPS58166263A - Preparation of standard apoprotein a-i - Google Patents

Preparation of standard apoprotein a-i

Info

Publication number
JPS58166263A
JPS58166263A JP4816382A JP4816382A JPS58166263A JP S58166263 A JPS58166263 A JP S58166263A JP 4816382 A JP4816382 A JP 4816382A JP 4816382 A JP4816382 A JP 4816382A JP S58166263 A JPS58166263 A JP S58166263A
Authority
JP
Japan
Prior art keywords
apoprotein
blood
serum
column
standard
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.)
Granted
Application number
JP4816382A
Other languages
Japanese (ja)
Other versions
JPH0474670B2 (en
Inventor
Yasuo Sakai
康夫 酒井
Takahito Sakurai
桜井 孝人
Hideo Aikawa
相川 秀夫
Kaname Nakamura
要 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daiichi Kagaku Yakuhin Co Ltd
Daiichi Pure Chemicals Co Ltd
Original Assignee
Daiichi Kagaku Yakuhin Co Ltd
Daiichi Pure Chemicals Co Ltd
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 Daiichi Kagaku Yakuhin Co Ltd, Daiichi Pure Chemicals Co Ltd filed Critical Daiichi Kagaku Yakuhin Co Ltd
Priority to JP4816382A priority Critical patent/JPS58166263A/en
Publication of JPS58166263A publication Critical patent/JPS58166263A/en
Publication of JPH0474670B2 publication Critical patent/JPH0474670B2/ja
Granted legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/96Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood or serum control standard

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Urology & Nephrology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Cell Biology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

PURPOSE:To obtain standard apoprotein A-I for the purpose of measuring apoprotein A-I exactly, by immobilizing an apoprotein A-I antibody in an insoluble resin then bringing a serum, blood-plasma or blood into contact with the insoluble resin and separating the apoprotein A-I liberated from lipoprotein (HDL) of high specific gravity. CONSTITUTION:The antiserum obtd. by immunizing isolated and refined apoprotein A-I in goats or the like is immobilized in an insoluble resin such as ''Cephallose 4B'' or the like and is packed in a column, and is equilibriated with a buffer soln., whereby the column immobilized with the specific antibody of the apoprotein A-I is prepd. The serum or blood-plasma obtd. by using a readily available blood such as blood after sepn. of placenta, blood for transfusion expired of the effective date, etc. as a raw material and separating the same centrifugally or the like or the blood filtered of undissolved material is flowed in sand antibody column, whereafter a buffer soln. is flowed into the said antibody column and the section of the HDL-apoprotein A-I is captured. A stabilizer is added to the section and the section is freeze-dried, whereby the standard serum for determination of the apoprotein A-I in blood is obtd. One sedimentation curve which does not produce double sedimentation curve and unobscure sedimentation curve is obtained by using such standard serum. The serum is used for determination of abnormal lipid metabolism, hepatocirrhosis, etc.

Description

【発明の詳細な説明】 本発明は高比重リポ蛋白(以下H1)Lと略す)から遊
離したアポ蛋白A−1(以下遊離アポA−1と言う)と
HD L顆粒表面に存在するアポ蛋白A−1(以下HD
L・アポA−1と言う)の分離法即ちアポ蛋白A−1濃
度測定用標準品に関するものである。
Detailed Description of the Invention The present invention relates to apoprotein A-1 (hereinafter referred to as free apoA-1) released from high-density lipoprotein (hereinafter referred to as H1L) and apoprotein present on the surface of HDL granules. A-1 (hereinafter HD
This paper relates to a standard product for measuring apoprotein A-1 concentration, that is, a method for separating L. apoA-1).

リボ蛋白は脂質と蛋白質成分より構成されており、その
蛋白質はアポ蛋白と呼ばれている。
Riboproteins are composed of lipid and protein components, and the protein is called apoprotein.

アポ蛋白には多くの種類があるが、アポ蛋白A−1はこ
れらアポ蛋白の中で血清又は血漿中でその濃度が最も高
いことが知られている。アポ蛋白A−1は主としてHD
L顆粒表面に存在し。
Although there are many types of apoproteins, apoprotein A-1 is known to have the highest concentration in serum or plasma among these apoproteins. Apoprotein A-1 is mainly found in HD
Exists on the surface of L granules.

HDLの可溶化に重要な働きをしているほか。In addition, it plays an important role in solubilizing HDL.

レシチンコレステロールアシルトランスフェラーゼの活
性化作用を有している。
It has an activating effect on lecithin cholesterol acyltransferase.

最近、アポ蛋白の測定が注目されてきており。Recently, the measurement of apoprotein has been attracting attention.

特にアポ蛋白A−1及びA−1の測定は脂質代謝異常の
鑑別また慢性肝炎及び肝硬変の重症度の判定に有効であ
ることが知られている。
In particular, measurement of apoprotein A-1 and A-1 is known to be effective in differentiating lipid metabolism abnormalities and determining the severity of chronic hepatitis and liver cirrhosis.

アポ蛋白A−1の測定法には免疫学的測定法として一元
放射状免疫拡散法(以下5RID法と略す)、免疫電気
泳動法、オフタロニー法。
Immunoassay methods for measuring apoprotein A-1 include one-way radial immunodiffusion method (hereinafter abbreviated as 5RID method), immunoelectrophoresis method, and ophthalmology method.

ラジオイムノアッセイ法、エンザイムイムノアッセイ法
、電気化学的性質を利用した等電点電気泳動法、8DS
ゲル電気泳動法等が使用されている。特に5RID法、
免疫電気法−動法は測定感度にすぐれ且つ操作の簡便さ
から日常検査に適した測定法として普及が期待されてい
る。
Radioimmunoassay method, enzyme immunoassay method, isoelectric focusing method using electrochemical properties, 8DS
Gel electrophoresis and the like are used. Especially the 5RID method,
The immunoelectrical method-dynamic method is expected to become popular as a measuring method suitable for daily testing because of its excellent measurement sensitivity and ease of operation.

しかし、これらの方法を使用する場合標準品として精製
したアポ蛋白A−[を用いるが、精製アポ蛋白A−1は
繁雑な操作と特殊な装置を使用し脱脂操作を行なう等手
間がかかる。しかも脱脂操作が行なわれているので、血
清又は血漿中のアポ蛋白とは挙動が異なることが予想さ
れ好ましくない。一方正常新鮮血清又は血漿を100%
として順次希釈し検量線を作成する方法があるが、新鮮
な血清又は血漿を使用しないと二重の沈降線あるいは不
鮮明な沈降線を生じる。
However, when these methods are used, purified apoprotein A-[ is used as a standard product, but purified apoprotein A-1 requires complicated operations and a degreasing operation using special equipment, which is time-consuming. Moreover, since a delipidation operation has been performed, it is expected that the behavior will be different from that of apoprotein in serum or plasma, which is not preferable. On the other hand, 100% normal fresh serum or plasma
There is a method of creating a calibration curve by serially diluting the sample, but if fresh serum or plasma is not used, a double sedimentation line or an unclear sedimentation line will result.

この原因は採取した血清又は血漿中のアポ蛋白・ A−
1が時間の経過と伴にHDL・アポA−1と遊離アポA
−1に分離し混在してくるためである。この様な血清又
は血漿を標準品として使用すると正確な測定値が得られ
にくい。従ってこれらの現象を避けるには新鮮血清又は
血漿を標準品として使用する必要1が、する。しかし測
定毎に正常新鮮血清又は血漿を標準品として使用するこ
とは通常不可能である。
The cause of this is apoprotein A- in the collected serum or plasma.
1 becomes HDL/apoA-1 and free apoA over time.
This is because they are separated into −1 and mixed together. When such serum or plasma is used as a standard product, it is difficult to obtain accurate measured values. Therefore, to avoid these phenomena, it is necessary to use fresh serum or plasma as a standard. However, it is usually impossible to use normal fresh serum or plasma as a standard for each measurement.

なぜならば検査室に集まる血清又は血漿は異常もしくは
異常と思われるものがほとんどであるため、標準品とし
て使用するには好ましくない。そこで新鮮血清又は血漿
と同等に正確に測定し得る標準品即ち、二重の沈降線あ
るいは不鮮明な沈降線を生じない標準血清が要望されて
いた。
This is because most of the serum or plasma collected in testing laboratories is abnormal or appears to be abnormal, so it is not desirable to use it as a standard product. Therefore, there has been a need for a standard serum that can be measured as accurately as fresh serum or plasma, that is, a standard serum that does not produce double sedimentation lines or unclear sedimentation lines.

本発明者は二重の沈降線あるいは不鮮明な沈降線を生じ
る原因となっている遊離アポA−1を除去するため超遠
心分離法あるいはゲルロ過法等種々試みたが除去し得な
かった。しかし。
The present inventor attempted various methods such as ultracentrifugation and gel filtration in order to remove free apoA-1, which causes double sedimentation lines or indistinct sedimentation lines, but was unable to remove it. but.

さらに鋭意研究を進めた結果11 D L・アポA−1
及び遊離アポA−1は抗アポ蛋白A−1抗体に対する親
和性に明らかに差があることを見出し、HDL・アポA
−1及び遊離アポA−1を選択的に分離し得る方法を完
成した。
As a result of further intensive research 11 D L Apo A-1
We found that there was a clear difference in the affinity of anti-apoprotein A-1 antibodies between HDL and free apoA-1.
We have completed a method that can selectively separate ApoA-1 and free ApoA-1.

本発明は多量に入手可能な血液即ち胎盤後血あるいは有
効期限切れの輸血用血液を原料として、これら血液の血
清成分または血液をそのまま抗アポ蛋白A−[抗体カラ
ムに接触させることを特徴とする遊離アポA−1分離法
即ち標準品の調製法である。
The present invention uses blood that is available in large quantities, that is, postplacental blood or expired blood for transfusion, as a raw material, and the serum components of these blood or blood are directly brought into contact with an anti-apoprotein A-[antibody column. This is the ApoA-1 separation method, ie, the standard preparation method.

次に本発明について詳細に説明する。Next, the present invention will be explained in detail.

先ず胎盤後血または有効期限切れの輸血用血液を比重1
.20に調製した後、遠心分離を行ない上部画分を捕集
する。次いで上部画分は脱塩操作を行なう。
First, placental blood or expired blood for transfusion is diluted with a specific gravity of 1.
.. 20, centrifugation is performed and the upper fraction is collected. The upper fraction is then subjected to a desalting operation.

一方、セファローズ4B(ファルマシア社発売)にアポ
蛋白特異抗体を固定化させた抗アポ蛋白A−1抗体カラ
ムを調製し、緩衝液で平衡化しカラムに充填しておく。
On the other hand, an anti-apoprotein A-1 antibody column in which an apoprotein-specific antibody is immobilized on Sepharose 4B (manufactured by Pharmacia) is prepared, equilibrated with a buffer solution, and packed into the column.

該カラムに脱塩操作を行なった後のアポ蛋白A−1を含
む画分を浸透させ緩衝液で流出させると最初に目的物で
あるHDL・アポ蛋白A−1を含む画分が流出して来る
。この自分に安定化剤を加え凍結乾燥することによりア
ポ蛋白A−1濃度測定用標準血清が得られる。
When the fraction containing apoprotein A-1 after desalting is permeated into the column and eluted with a buffer solution, the fraction containing HDL/apoprotein A-1, which is the target product, flows out first. come. By adding a stabilizer to this serum and lyophilizing it, a standard serum for measuring apoprotein A-1 concentration can be obtained.

なお、抗アポ蛋白A−1抗体カラムは以下の方法で調製
できる。
Incidentally, an anti-apoprotein A-1 antibody column can be prepared by the following method.

例えば単離精製したアポ蛋白A−1を動物(山羊、家兎
等)に免疫して得られた抗血清をそのまま次の操作に使
用してもよいが、好ましくは得られた抗血清からさらに
アポ蛋白A−1特異抗体を得9次の操作に使用するのが
よい。
For example, an antiserum obtained by immunizing an animal (goat, rabbit, etc.) with isolated and purified apoprotein A-1 may be used as is in the next operation, but it is preferable to further use the obtained antiserum. It is preferable to obtain an apoprotein A-1 specific antibody and use it in the ninth step.

特異抗体を得る方法としてはアポ蛋白A−1抗原を、セ
ファロース4B等の不溶性樹脂に固定化させカラムに充
填し、緩衝液で平衡化させた後、諌カラム番こ抗血清を
浸透させた後常法の手段で処理すればアポ蛋白A−1特
異抗体が得られる。この特異抗体を活性化させた不溶性
樹脂例えばセファロース4Bに接触させればセファロー
ス4Bjこ特異抗体が固定化される。
The method for obtaining specific antibodies is to immobilize the apoprotein A-1 antigen on an insoluble resin such as Sepharose 4B, fill it in a column, equilibrate it with a buffer solution, and then infiltrate the Isa column with Banko antiserum. Apoprotein A-1 specific antibodies can be obtained by treatment using conventional methods. When this specific antibody is brought into contact with an activated insoluble resin such as Sepharose 4B, the specific antibody is immobilized on Sepharose 4Bj.

次に参考例、実施例で本発明を説明する。Next, the present invention will be explained with reference examples and examples.

参考例 アポ蛋白A−1抗体カラム セファロース4B 8.9を2モル炭酸カリウム51I
/に懸濁し、氷冷後1 rtrlのアセトニトリルに2
1の臭化シアンを溶解した溶液0.25m4を加え数分
間攪拌した後グラスフィルター(8G)で口過し、残渣
を10倍量の蒸留水、0,1モル炭酸水素ナトリウムで
洗浄する。得られた残渣はアポ蛋白特異抗原80■をO
1モル炭酸水素ナトリウム71R1に溶解したものに加
え。
Reference example Apoprotein A-1 antibody column Sepharose 4B 8.9 to 2 mol potassium carbonate 51I
/, cooled on ice, and diluted with 1 rtrl of acetonitrile.
Add 0.25 m4 of a solution in which cyanogen bromide (1) was dissolved, stir for several minutes, filter through a glass filter (8G), and wash the residue with 10 times the amount of distilled water and 0.1 mol sodium bicarbonate. The obtained residue contains 80 μg of apoprotein-specific antigen.
Add to that dissolved in 1M sodium bicarbonate 71R1.

4℃以下で16時間反応させる。反応後口過し残渣を蒸
留水で洗浄後0.02%アジ化ナトリウムを含む0.5
モル塩化す) IJウムに懸濁させ、4℃以下で保存す
る。
React at 4°C or lower for 16 hours. After the reaction, the residue was filtered and washed with distilled water.
(Molar chloride) Suspend in IJum and store at below 4°C.

実施例 胎盤後面llに乾燥した臭化カリウム291.6gを加
え混合した後、4℃で4400Orpm、  48時間
遠心分離した。分離後遠心管上部画分を捕集し、脱脂綿
を用いて不溶物を日別した。
Example 291.6 g of dried potassium bromide was added to the posterior surface of the placenta 11 and mixed, followed by centrifugation at 4400 rpm at 4° C. for 48 hours. After separation, the upper fraction of the centrifuge tube was collected, and insoluble matter was separated using absorbent cotton.

ロ別後0.2モルショ糖−塩化す) IJウム溶液に平
衡化したセファデックスG−25(ファルマシア社発売
)を充填したカラムに浸透させ同溶液で流出させた。流
出液は各5縦に分画し連続的に蛋白成分を分析しアポ蛋
白A−lを含む両分を得た。次いでこの両分をまとめ0
12モルショ糖−塩化ナトリウム溶液に平衡化したアポ
蛋白A−1抗体カラムに浸透させ同溶液にて流出させた
。流出液は各7履lに分画し、連続的に蛋白成分を分析
し、)(DI、・アポA−1を含む画分を捕集した。
After separation, the column was permeated into a column filled with Sephadex G-25 (manufactured by Pharmacia) equilibrated with a 0.2M sucrose-chloride solution, and the same solution was allowed to flow out. The effluent was fractionated vertically into 5 sections and the protein components were continuously analyzed to obtain both fractions containing apoprotein A-1. Next, combine these two parts and 0
It was permeated into an apoprotein A-1 antibody column equilibrated with a 12M sucrose-sodium chloride solution and eluted with the same solution. The effluent was fractionated into 7 liter portions, continuously analyzed for protein components, and fractions containing )(DI, ApoA-1) were collected.

得られたHDL・アポA−(を含む両分をバイアルビン
に0.5 dずつ分注し凍結乾燥し血中アポ蛋白A−1
濃度測定用標準血清を得たO この標準血清1バイアルに対し生理食塩液0.5dに溶
解し、標準血清試料とした。
Both the obtained HDL and apoA-(containing) were dispensed into vials in 0.5 d portions and lyophilized to obtain blood apoprotein A-1.
A standard serum for concentration measurement was obtained. One vial of this standard serum was dissolved in 0.5 d of physiological saline to prepare a standard serum sample.

正常人新鮮血清及び4℃で7日間放置した正常人の血清
をそれぞれ生理食塩液にて10倍に希釈し試料とした。
Fresh serum from a normal person and serum from a normal person left at 4°C for 7 days were each diluted 10 times with physiological saline and used as samples.

標準血清試料及び試料を8RID法用に調製した抗アポ
蛋白A−1抗血清を含むアガロース板上に各5μl添加
し室温にて48時間水平台上で静置し沈降線を比較観察
した。標準血清及び新鮮血清では一本の鮮明な沈降線を
得たが、4℃で7日間放置した血清では二重の沈降線を
得た。
5 μl of each of the standard serum sample and the sample were added to an agarose plate containing anti-apoprotein A-1 antiserum prepared for the 8RID method, and the plate was left standing on a horizontal stand at room temperature for 48 hours, and the sedimentation lines were comparatively observed. A single clear sedimentation line was obtained with the standard serum and fresh serum, but a double sedimentation line was obtained with the serum that had been left at 4°C for 7 days.

Claims (1)

【特許請求の範囲】[Claims] アポ蛋白A−1抗体を不溶性樹脂に固定化させ平衡化さ
れた後、血清、血漿又は血液を該不溶性樹脂に接触させ
高比重リポ蛋白から遊離したアポ蛋白A−1を血清、血
漿又は血液から分離させることを特徴とするアポ蛋白A
−1標準品の調製法
After the apoprotein A-1 antibody is immobilized on an insoluble resin and equilibrated, serum, plasma, or blood is brought into contact with the insoluble resin to remove apoprotein A-1 released from high-density lipoproteins from the serum, plasma, or blood. Apoprotein A characterized by being separated
-1 Preparation method of standard product
JP4816382A 1982-03-27 1982-03-27 Preparation of standard apoprotein a-i Granted JPS58166263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4816382A JPS58166263A (en) 1982-03-27 1982-03-27 Preparation of standard apoprotein a-i

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4816382A JPS58166263A (en) 1982-03-27 1982-03-27 Preparation of standard apoprotein a-i

Publications (2)

Publication Number Publication Date
JPS58166263A true JPS58166263A (en) 1983-10-01
JPH0474670B2 JPH0474670B2 (en) 1992-11-26

Family

ID=12795709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4816382A Granted JPS58166263A (en) 1982-03-27 1982-03-27 Preparation of standard apoprotein a-i

Country Status (1)

Country Link
JP (1) JPS58166263A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60253871A (en) * 1984-05-30 1985-12-14 Nippon Koutai Kenkyusho:Kk Anti-apo a-1 antibody
JPS6264956A (en) * 1985-09-18 1987-03-24 Teijin Ltd Method for detecting lung surface active substance and reagent kit therefor
JPS63501037A (en) * 1985-09-27 1988-04-14 フア−マシア・ア−・ベ− Method for measuring lipoproteins and apolipoproteins
US5070270A (en) * 1987-03-04 1991-12-03 Mitsubishi Denki K.K. Brush device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0688614B2 (en) * 1992-07-13 1994-11-09 静男 佐藤 Paper protector having multiple structure and manufacturing apparatus thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60253871A (en) * 1984-05-30 1985-12-14 Nippon Koutai Kenkyusho:Kk Anti-apo a-1 antibody
JPH0453516B2 (en) * 1984-05-30 1992-08-26 Nippon Kotai Kenkyusho Kk
JPS6264956A (en) * 1985-09-18 1987-03-24 Teijin Ltd Method for detecting lung surface active substance and reagent kit therefor
JPS63501037A (en) * 1985-09-27 1988-04-14 フア−マシア・ア−・ベ− Method for measuring lipoproteins and apolipoproteins
US5070270A (en) * 1987-03-04 1991-12-03 Mitsubishi Denki K.K. Brush device

Also Published As

Publication number Publication date
JPH0474670B2 (en) 1992-11-26

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