和肽素(CPP)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)
ELISA Kit for Copeptin (CPP)
C-Terminal Provasopressin; Vasopressin-Neurophysin 2-Copeptin
- 編號(hào)CEA365Mu
- 物種Mus musculus (Mouse,小鼠) 相同的名稱(chēng),不同的物種。
- 實(shí)驗(yàn)方法競(jìng)爭(zhēng)抑制
- 反應(yīng)時(shí)長(zhǎng)2h
- 檢測(cè)范圍24.69-2,000pg/mL
- 靈敏度最小可檢測(cè)劑量小于等于9.16pg/mL.
- 樣本類(lèi)型Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下載 英文說(shuō)明書(shū) 中文說(shuō)明書(shū)
- 規(guī)格 48T96T 96T*5 96T*10 96T*100
- 價(jià)格 ¥ 2722 ¥ 3888 ¥ 17496 ¥ 33048 ¥ 272160
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特異性
本試劑盒用于檢測(cè)和肽素(CPP),經(jīng)檢測(cè)與其它相似物質(zhì)無(wú)明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來(lái)源的限制,不可能完成對(duì)所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測(cè),因此本試劑盒有可能與未經(jīng)檢測(cè)的其它物質(zhì)有交叉反應(yīng)。
回收率
分別于定值血清及血漿樣本中加入一定量的和肽素(CPP)(加標(biāo)樣品),重復(fù)測(cè)定并計(jì)算其均值,回收率為測(cè)定值與理論值的比率。
樣本 | 回收率范圍(%) | 平均回收率(%) |
serum(n=5) | 80-97 | 81 |
EDTA plasma(n=5) | 94-105 | 98 |
heparin plasma(n=5) | 97-104 | 101 |
精密度
精密度用樣品測(cè)定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對(duì)低、中、高值定值樣本進(jìn)行定量檢測(cè),每份樣本連續(xù)測(cè)定20 次,分別計(jì)算不同濃度樣本的平均值及SD值。
批間差:選取3個(gè)不同批次的試劑盒分別對(duì)低、中、高值定值樣本進(jìn)行定量測(cè)定,每個(gè)樣本使用同一試劑盒重復(fù)測(cè)定8次,分別計(jì)算不同濃度樣本的平均值及SD值。
批內(nèi)差: CV<10%
批間差: CV<12%
線性
在定值血清及血漿樣本內(nèi)加入適量的和肽素(CPP),并倍比稀釋成1:2,1:4,1:8,1:16的待測(cè)樣本,線性范圍即為稀釋后樣本中和肽素(CPP)含量的測(cè)定值與理論值的比率。
樣本 | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 95-105% | 85-93% | 78-93% | 81-94% |
EDTA plasma(n=5) | 79-103% | 97-105% | 91-98% | 82-105% |
heparin plasma(n=5) | 79-90% | 88-102% | 99-105% | 98-105% |
穩(wěn)定性
經(jīng)測(cè)定,試劑盒在有效期內(nèi)按推薦溫度保存,其活性降低率小于5%。
為減小外部因素對(duì)試劑盒破壞前后檢測(cè)值的影響,實(shí)驗(yàn)室的環(huán)境條件需盡量保持一致,尤其是實(shí)驗(yàn)室內(nèi)溫度、濕度及溫育條件。其次由同一實(shí)驗(yàn)員來(lái)進(jìn)行操作可減少人為誤差。
實(shí)驗(yàn)流程
1. 實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)50µL,
加入50µL檢測(cè)液A(臨用前配制);
37°C溫育1小時(shí)。
3. 洗板3次;
4. 加檢測(cè)溶液B100µL,37°C孵育30分鐘;
5. 洗板5次;
6. 加TMB底物90µL,37°C孵育10-20分鐘;
7. 加終止液50µL,立即450nm讀數(shù)。
實(shí)驗(yàn)原理
本試劑盒應(yīng)用競(jìng)爭(zhēng)抑制酶聯(lián)免疫分析法測(cè)定標(biāo)本中待測(cè)物質(zhì)水平。將和肽素(CPP)單克隆抗體包被微孔板,制成固相載體,往包被抗體的微孔中同時(shí)加入生物素標(biāo)記的抗原和待測(cè)抗原(標(biāo)準(zhǔn)品或樣本),待測(cè)抗原與生物素標(biāo)記抗原對(duì)特異性抗體進(jìn)行競(jìng)爭(zhēng)結(jié)合。溫育后經(jīng)洗滌去掉未結(jié)合物,然后加入HRP標(biāo)記的親和素,經(jīng)過(guò)溫育和徹底洗滌后加入底物TMB顯色。TMB在過(guò)氧化物酶的催化下轉(zhuǎn)化成藍(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。待測(cè)標(biāo)本濃度越高,標(biāo)記抗原和抗體的結(jié)合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關(guān),而與樣品中待測(cè)物質(zhì)含量呈負(fù)相關(guān)。用酶標(biāo)儀在450nm波長(zhǎng)下測(cè)定吸光度(O.D.值),計(jì)算樣品濃度。
贈(zèng)品
相關(guān)產(chǎn)品
編號(hào) | 適用物種:Mus musculus (Mouse,小鼠) | 應(yīng)用(僅供研究使用,不用于臨床診斷!) |
RPA365Mu01 | 和肽素(CPP)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
CEA365Mu | 和肽素(CPP)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA365Mu | 和肽素(CPP)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
參考文獻(xiàn)
雜志 | 參考文獻(xiàn) |
Med-Science. | Copeptin: May it be a novel biomarker for insulin theraphy in diabetes? An animal study. [Ejmanager: Source] |
Psychiatry and Clinical Neurosciences | Serum copeptin in children exposed to maltreatment [Pubmed:27278269] |
United States Patent Application | Methods for Diagnosis and Treatment of Concussion or Brain Injury [2016:0103140] |
J Physiol | Role of enteroendocrine L‐cells in arginine vasopressin‐mediated inhibition of colonic anion secretion [Pubmed:27037495] |
International Journal of Clinical and Experimental Medicine | Can hypoxia enhance sexual arousal?-Molecular-biological analysis of the hypothalamus in male rats placed with oestrous female rats under hypoxic … [files:ijcem0031358.pdf] |
Front Physiol | Orthostatic Challenge Shifts the Hemostatic System of Patients Recovered from Stroke toward Hypercoagulability. [pubmed:28223937] |
Kidney Blood Pressure Research | N-Terminal Prohormone of Brain Natriuretic Peptide but not C-Terminal Pre-Pro Vasopressin (Copeptin) Level is Associated with the Response to Antihypertensive … [pubmed:29190613] |
Hindawi Publishing Corporation | Early Prediction of Preeclampsia [journals:297397] |
Journal of Urology | Evaluation of Urinary Aquaporin 2 and Plasma Copeptin as Biomarkers of Effectiveness of Desmopressin Acetate for the Treatment of Monosymptomatic Nocturnal Enuresis. [pubmed:28457803] |
American Journal of Physiology-Renal?Physiology | Experimental Heat Stress Nephropathy and Liver Injury are Improved by Allopurinol [Pubmed:29667911] |
American Journal of Physiology-Regulatory Integrative and Comparative Physiology | Angiotensin AT Receptors Expressed in Vasopressin-Producing Cells of the Supraoptic Nucleus Contribute to the Osmotic Control of Vasopressin [Pubmed:29364700] |
BMC?Nephrology | Rehydration with fructose worsens dehydration-induced renal damage [Pubmed:30005632] |
Experimental and Therapeutic?Medicine | Copeptin level in the early prediction of cardiorenal syndrome in rats [Pubmed:30112047] |
中國(guó)病理生理雜志 | 和肽素水平對(duì)大鼠心腎綜合征的早期預(yù)測(cè)價(jià)值 [filename:ZBLS201802013] |
Hypertension | Abstract P311: Static Urine Osmolality With Elevated First Trimester Urine Copeptin in Human Preeclampsia [] |
Journal of Pediatric Urology | Assessment of serum levels of copeptin and corticotropin-releasing factor in children with monosymptomatic and nonmonosymptomatic nocturnal enuresis [] |
experimental physiology | Cognitive performance is associated with cerebral oxygenation and peripheral oxygen saturation, but not plasma catecholamines, during graded normobaric hypoxia [] |
international urology and nephrology | Dialysate copeptin and peritoneal transport in incident peritoneal dialysis patients [Pubmed: 31187425] |
American Journal of Physiology-renal Physiology | The contribution of collecting duct NOS1 to the concentrating mechanisms in male and female mice [Pubmed: 31241990] |
american journal of physiology-renal physiology | The increase of core temperature affected the progression of kidney injury by repeated heat stress exposure [Pubmed: 31390229] |
Scientific Reports | Deletion of the serine protease CAP2/Tmprss4 leads to dysregulated renal water handling upon dietary potassium depletion [Pubmed: 31863073] |
BMC Nephrology | Copeptin is independently associated with vascular calcification in chronic kidney disease stage 5 [Pubmed: 32033584] |
Archives of Biochemistry and Biophysics | Micro RNA 146a gene variant/TNF-α/IL-6/IL-1 β; A cross-link axis inbetween oxidative stress, endothelial dysfunction and neuro-inflammation in acute ischemic stroke … [Pubmed: 31738890] |
Ann Nutr Metab | Copeptin and Nesfatin-1 Are Interrelated Biomarkers with Roles in the Pathogenesis of Insulin Resistance in Chinese Children with Obesity [Pubmed: 33027789] |
Biomolecules . | Multimarker Approach to Identify Patients with Coronary Artery Disease at High Risk for Subsequent Cardiac Adverse Events: The Multi-Biomarker Study [Pubmed: 32549327] |
Arch Med Res | Relation of Copeptin with Diabetic and Renal Function Markers Among Patients with Diabetes Mellitus Progressing Towards Diabetic Nephropathy [Pubmed: 32505416] |
河北醫(yī)科大學(xué)學(xué)報(bào) | 重組人腦利鈉肽治療慢性肺心病急性加重期的臨床效果及對(duì)5-HT 濃度的影響 [] |
Scientific reports | Validity of different copeptin assays in the differential diagnosis of the polyuria-polydipsia syndrome [33980941] |
International Journal of Women?ˉs Health and Reproduction Sciences | Are the Circulating Levels of Copeptin and Fibronectin Dysregulated in Preeclamptic South African Black Women? [] |
Dicle T?p Dergisi | Copeptin levels are more elevated and associated with cardiovascular events in the unity of chronic ischemic heart and chronic kidney diseases [] |
High serum copeptin may be a marker of an increased carotid intima-media thickness in asymptomatic patients with type 1 diabetes. [] | |
Nutrients | The Speed of Ingestion of a Sugary Beverage Has an Effect on the Acute Metabolic Response to Fructose [] |
Acta Physiol (Oxf) | Dietary K+ acts as a genuine diuretic [Pubmed:34984847] |
Anal Chim Acta | Spectrally multiplexed assay using gap enhanced nanoparticle for detection of a myocardial infarction biomarker panel [Pubmed:35190126] |
J Cell Physiol | Arcuate NPY is involved in salt‐induced hypertension via modulation of paraventricular vasopressin and brain‐derived neurotrophic factor [Pubmed:35312067] |
Children | Copeptin Concentrations in Plasma of Healthy Neonates in Relation to Water–Electrolyte Homeostasis in the Early Adaptation Period [Pubmed:35327814] |