CN1111201C - Low-density liporotein acceptor testing reagent and method - Google Patents
Low-density liporotein acceptor testing reagent and method Download PDFInfo
- Publication number
- CN1111201C CN1111201C CN 99121274 CN99121274A CN1111201C CN 1111201 C CN1111201 C CN 1111201C CN 99121274 CN99121274 CN 99121274 CN 99121274 A CN99121274 A CN 99121274A CN 1111201 C CN1111201 C CN 1111201C
- Authority
- CN
- China
- Prior art keywords
- low
- density lipoprotein
- cell
- reaction
- minute
- 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 - Fee Related
Links
Abstract
The present invention relates to a reagent and a method for testing low-density lipoprotein acceptors. The reagent of the present invention is composed of low-density lipoprotein, amphoteric adhesives, cell separation liquid, composite agents for fixing cells and preventing composition from moving inward, reaction system stop and color developing agents, and system quantization standard references. The test method comprises: a standard reaction pool is prepared; the cell amphoteric adhesives are placed for 2 hours; cells in blood are strictly separated by the cell separation liquid; a certain amount of the cells are placed in the standard reaction pool; the composite agents are added in the standard reaction pool; a reaction pool and an empty reaction pool are prepared; the low-density lipoprotein is added; low-density lipoprotein antibodies labeled by enzyme are added; the reaction system stop and color developing agents are added. The method can directly and quantitatively analyze low-density lipoprotein acceptors of which the cell surfaces have biological functions, and is an ideal test method for diagnosing familial hyperlipemia.
Description
The present invention relates to a kind of low-density liporotein acceptor testing reagent and method, particularly diagnose detection reagent and the method for familial hypercholesterolemia pair cell LDL-R.
The low-density lipoprotein metabolism is the low density lipoprotein receptor that function is arranged by cell surface, the LDL-R of round-robin LDL and cell surface is mutually combined, carried out katabolism by cytophagy, lipophorin resolves into amino acid, lipid is participated in lipid metabolism, prevent that the LDL level increases in the blood circulation, too much LDL is engulfed by phagocytic cell and artery substrate smooth muscle cell, forms foam cell and assembles and cause atherosclerosis.Familial hypercholesterolemia is because LDL-R gene and other factors cause cell surface LDL-R dysfunction, can not combine with round-robin LDL or in conjunction with after LDL can not be swallowed cell and causes LDL to increase, nonage just forms arteriosclerosis, xanthoma, other factors also can make LDL increase with the exception of this, how to diagnose the patient whether the proteic defective of cell surface LDL-R is arranged, be that whether the LDL level increases and come Indirect evaluation from blood plasma the earliest, its weak point is: this method can not determine that the high-caliber LDL of blood plasma is owing to the LDL-R dysfunction causes.Then foreign study utilizes the method for the anti-LDL antibody of labelled with radioisotope to check free LDL-R in the blood plasma, but free LDL-R and the LDL-R of cell surface are in line relevantly fully, therefore detect the LDL-R protein function that free LDL-R in the blood plasma can not estimate cell surface fully.To the domestic and international 2,300,000 pieces of literature searches of 1994-1999, not seeing has the pertinent literature report through Institute of Medical Information of the Chinese Academy of Medical Sciences.Detect industry for this reason and thirst for having the cell LDL-R detection method that to diagnose familial hypercholesterolemia.
The object of the present invention is to provide a kind of detection reagent, with having the low density lipoprotein receptor LDL-R of biological function to carry out quantitative analysis by the direct pair cell of certain operation steps surface, come the low-density liporotein acceptor testing reagent and the method for diagnostic detection familial hypercholesterolemia with this reagent.
The object of the present invention is achieved like this: preparation reagent: the component of reagent has: low-density lipoprotein; The anti-low-density lipoprotein both sexes tackiness agent of horseradish peroxidase-labeled; Cellular segregation liquid; Cell fixation and prevent to move recombiner in the receptor-ligand binding substances; Reaction system stops and the reaction solution agent; System quantitative criterion object of reference.Detect step: it is identical to get the reaction tank floorage, the standard reaction pond that the bottom absorbancy is identical; Get cell both sexes tackiness agent, under 20 ℃-50 ℃ temperature, placed 2 hours; With the cell in the strict separating blood of cellular segregation liquid, get certain cell and be positioned in the reaction tank 20-60 minute, add in the cell fixation acceptor and move recombiner, 2-18 minute; System quantitative criterion object of reference reaction tank and blank reaction tank are set; Add low-density lipoprotein, 20-50 ℃ was reacted one hour; Add the anti-low-density lipoprotein antibody of enzyme labelling, reacted 5-50 minute; Add reaction system and stop and reaction solution liquid, stablized 5-40 minute; Detect with enzyme micro-plate reader.
Advantage of the present invention is:
1, directly the pair cell surface has the low density lipoprotein receptor (LDL-R) of biological function to carry out quantitative analysis, solved at present and can not carry out the direct quantitative analysis by pair cell Surface L DL-R, can only measure the low density lipoprotein cholesterol (LDL-C) in the blood circulation or check what problem of free LDL-R protein level.
2, make medical diagnosis on disease be transformed into to measure bioactive mcroorganism macromole is arranged, can more direct inspection analyze the biological function material of body by the present simple macromolecular substance of measuring.
3, can effectively detect the familial high-cholesterol disease.
Below in conjunction with embodiment in detail the present invention is described in detail.
Technical scheme of the present invention is: diagnosis employed reagent of familial hypercholesterolemia and detection method.It comprises two big steps, the one, and preparation reagent, the 2nd, operation steps.Reagent is the product that uses in the testing process, and its component is: 1, low-density lipoprotein, content 0.8-10.0mmol/L; 2, the anti-low-density lipoprotein both sexes tackiness agent 20-30W/V of horseradish peroxidase-labeled, the main component of anti-low-density lipoprotein both sexes tackiness agent is N1 N-dioctadeylsuccinamic a ciddioctadecyl ylutdmate HCL salt, chemical molecular formula;
Its making method is, the high molecular bonding thing is applied on the Sptting plate, forms film, and cell can firmly adsorb above it.3, cellular segregation liquid 10-40W/V, NaHCO30.1-1.5g; 4, cell fixation and prevent to move recombiner in the receptor-ligand binding substances, ldl receptor and LDL part on the cytolemma, cell fixation before combination, dehydration does not exist in the receptor-ligand binding substances and moves problem, and fixedly dewatering agent is a methyl alcohol; Reaction system stops and the reaction solution agent, and the main component of reaction solution agent is: 33 '-Diaminobenzidinetetrhydrochlorido, C
12H
18CL
4N
4Utilize normal people's mixed lymphocytes as system quantitative criterion object of reference.
Detection method is undertaken by following step: it is identical 1, to get the reaction tank floorage, the standard reaction pond that the bottom absorbancy is identical; 2, get cell both sexes tackiness agent 20-25ul in the part, placed 2 hours for 20 ℃-50 ℃; 3, with cellular segregation liquid (FICOLL) 10-40w/v in the part, the cell in the strict separating blood of NaHCO30.1-1.5g is got certain cell and is positioned in the reaction tank, and 20 ℃-80 ℃, 20-60 minute; 4, move recombiner 4-30UL, 2-18 minute in the cell fixation acceptor in the adding part; 5, system quantitative criterion object of reference reaction tank and blank reaction tank are set; 6, add low-density lipoprotein 5-150ul, 20-50 ℃ was reacted one hour; 7, the anti-low-density lipoprotein antibody that adds enzyme labelling, certain temperature (according to the practical situation fixed temperature) reaction 5-50 minute; 8, add reaction system and stop and reaction solution liquid 5-30ul, stablized 5-40 minute; Detect with enzyme micro-plate reader.9, determine whether to be hypercholesterolemia according to detected result.
Claims (2)
1, a kind of low-density liporotein acceptor testing reagent is characterized in that the component of reagent has: low-density lipoprotein; The anti-low-density lipoprotein both sexes tackiness agent of horseradish peroxidase-labeled; Cellular segregation liquid; Cell fixation and prevent to move recombiner in the receptor-ligand binding substances; Reaction system stops and the reaction solution agent; System quantitative criterion object of reference.
2, a kind of detection method with claim 1 pair low density lipoprotein receptor is characterized in that it detects by following detection step:
A, to get the reaction tank floorage identical, the standard reaction pond that the bottom absorbancy is identical;
B, get cell both sexes tackiness agent, under 20 ℃-50 ℃ temperature, placed 2 hours;
C, with the cell in the cellular segregation liquid strict separating blood, get certain cell and be positioned in the reaction tank 20-60 minute, add in the cell fixation acceptor and move recombiner, 2-18 minute;
D, system quantitative criterion object of reference reaction tank and blank reaction tank are set; Add low-density lipoprotein, 20-50 ℃ was reacted one hour;
The anti-low-density lipoprotein antibody of e, adding enzyme labelling reacted 5-50 minute;
F, adding reaction system stop and reaction solution liquid, stablize 5-40 minute;
G, detect with enzyme micro-plate reader.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99121274 CN1111201C (en) | 1999-11-04 | 1999-11-04 | Low-density liporotein acceptor testing reagent and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99121274 CN1111201C (en) | 1999-11-04 | 1999-11-04 | Low-density liporotein acceptor testing reagent and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1295132A CN1295132A (en) | 2001-05-16 |
CN1111201C true CN1111201C (en) | 2003-06-11 |
Family
ID=5281910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 99121274 Expired - Fee Related CN1111201C (en) | 1999-11-04 | 1999-11-04 | Low-density liporotein acceptor testing reagent and method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1111201C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4677545B2 (en) * | 2003-10-15 | 2011-04-27 | 積水メディカル株式会社 | Method for fractional determination of multimeric adiponectin |
-
1999
- 1999-11-04 CN CN 99121274 patent/CN1111201C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1295132A (en) | 2001-05-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Vaziri-Sani et al. | A novel triple mix radiobinding assay for the three ZnT8 (ZnT8-RWQ) autoantibody variants in children with newly diagnosed diabetes | |
Kissebah et al. | Plasma low density lipoprotein transport kinetics in noninsulin-dependent diabetes mellitus. | |
Javors et al. | Current status of carbohydrate deficient transferrin, total serum sialic acid, sialic acid index of apolipoprotein J and serum β‐hexosaminidase as markers for alcohol consumption | |
Watts et al. | Post‐prandial chylomicron response may be predicted by a single measurement of plasma apolipoprotein B48 in the fasting state | |
CN1623000A (en) | Polypeptide quantitation | |
Jaffa et al. | Connective tissue growth factor and susceptibility to renal and vascular disease risk in type 1 diabetes | |
CN102421799B (en) | Novel monoclonal antibody for analyzing high-molecular weight adiponectin and utilization of same | |
AU2021202908C1 (en) | Methods relating to testing for lysosomal storage disorders | |
EP3031801A1 (en) | Specific fluorescent probe based on albumin pseudo-esterase hydrolysis reaction and use thereof | |
CN102967704B (en) | Kit for combined detection of 6 diabetic antibodies | |
Niemelä et al. | Carbohydrate‐deficient transferrin as a marker of alcohol abuse: Relationship to alcohol consumption, severity of liver disease, and fibrogenesis | |
CN1111201C (en) | Low-density liporotein acceptor testing reagent and method | |
RU2498307C2 (en) | Method for evaluating risk of clinical complications of atherosclerosis | |
US20130011870A1 (en) | Method For Assaying Diseases Characterized By Dyslipidemia | |
Cole et al. | Update on parathyroid hormone: new tests and new challenges for external quality assessment | |
Mazzaferro et al. | Osteocalcin, iPTH, alkaline phosphatase and hand X-ray scores as predictive indices of histomorphometric parameters in renal osteodystrophy | |
CN103543272A (en) | Rapid and quantitative detection device and method for simultaneously detecting heart-type fatty acid-binding protein and cardiac troponin I | |
CN101042399A (en) | Diabetes autoantibody immunoblotting reagent kit | |
JPH07506437A (en) | Methods and compositions for reducing the effects of endogenous alkaline phosphatase | |
CN107490693A (en) | A kind of fluorescence immune chromatography method for quantitatively detecting cardiac muscle troponin I and cardic fatty acid binding protein | |
Chanchay et al. | Plasma resistin, insulin concentration in non-diabetic and diabetic, overweight/obese Thai | |
Roberts et al. | Falsely increased immunoassay measurements of total and unbound phenytoin in critically ill uremic patients receiving fosphenytoin | |
Nowier et al. | Prevalence of celiac disease among type 1 diabetic Egyptian patients and the association with autoimmune thyroid disease | |
Brandt et al. | Advanced glycation end products and bone–How do we measure them and how do they correlate with bone mineral density and fractures? A systematic review and evaluation of precision of measures | |
RU2000119129A (en) | DNA Molecule Encoding a Mutant Preproneuropeptide Y, Mutant Signal Peptide and Their Applications |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |