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血管緊張素1-7(Ang1-7)檢測試劑盒(酶聯(lián)免疫吸附試驗法)

ELISA Kit for Angiotensin 1-7 (Ang1-7)

  • 血管緊張素1-7(Ang1-7)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 血管緊張素1-7(Ang1-7)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 血管緊張素1-7(Ang1-7)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 實驗結(jié)果圖
  • CES085Mi.jpg 標準曲線圖
  • Certificate 通過ISO 9001、ISO 13485質(zhì)量體系認證

特異性

本試劑盒對檢測血管緊張素1-7(Ang1-7)具有較高的靈敏度。
經(jīng)檢測人、小鼠、大鼠之間有100%的交叉反映。

回收率

分別于定值血清及血漿樣本中加入一定量的血管緊張素1-7(Ang1-7)(加標樣品),重復(fù)測定并計算其均值,回收率為測定值與理論值的比率。

樣本 回收率范圍(%) 平均回收率(%)
serum(n=5) 84-98 91
EDTA plasma(n=5) 96-103 101
heparin plasma(n=5) 94-105 102

精密度

精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進行定量測定,每個樣本使用同一試劑盒重復(fù)測定8次,分別計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)加入適量的血管緊張素1-7(Ang1-7),并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中血管緊張素1-7(Ang1-7)含量的測定值與理論值的比率。

樣本 1:2 1:4 1:8 1:16
serum(n=5) 78-104% 84-104% 86-96% 85-95%
EDTA plasma(n=5) 89-103% 99-105% 91-101% 79-101%
heparin plasma(n=5) 78-98% 90-97% 83-94% 84-92%

穩(wěn)定性

經(jīng)測定,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%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實驗室的環(huán)境條件需盡量保持一致,尤其是實驗室內(nèi)溫度、濕度及溫育條件。其次由同一實驗員來進行操作可減少人為誤差。

實驗流程

1. 實驗前標準品、試劑及樣本的準備;
2. 加樣(標準品及樣本)50µL,
    加入50µL檢測液A(臨用前配制);
    37°C溫育1小時。
3. 洗板3次;
4. 加檢測溶液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)。

實驗原理

本試劑盒應(yīng)用競爭抑制酶聯(lián)免疫分析法測定標本中待測物質(zhì)水平。將血管緊張素1-7(Ang1-7)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加入生物素標記的抗原和待測抗原(標準品或樣本),待測抗原與生物素標記抗原對特異性抗體進行競爭結(jié)合。溫育后經(jīng)洗滌去掉未結(jié)合物,然后加入HRP標記的親和素,經(jīng)過溫育和徹底洗滌后加入底物TMB顯色。TMB在過氧化物酶的催化下轉(zhuǎn)化成藍色,并在酸的作用下轉(zhuǎn)化成最終的黃色。待測標本濃度越高,標記抗原和抗體的結(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),而與樣品中待測物質(zhì)含量呈負相關(guān)。用酶標儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。

相關(guān)產(chǎn)品

編號 適用物種:Homo sapiens (Human,人), Mus musculus (Mouse,小鼠), Rattus norvegicus (Rat,大鼠) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
CPS085Mi21 血管緊張素1-7(Ang1-7)卵白蛋白偶聯(lián)物 Immunogen; SDS-PAGE; WB.
CPS085Mi11 血管緊張素1-7(Ang1-7)牛血清白蛋白偶聯(lián)物 Immunogen; SDS-PAGE; WB.
PAS085Mi08 血管緊張素1-7(Ang1-7)多克隆抗體 ELISA, CLIA. / IHC-Fr, ICC, IP (predicted).
MAS085Mi27 血管緊張素1-7(Ang1-7)單克隆抗體 WB; IHC; ICC; IP.
MAS085Mi22 血管緊張素1-7(Ang1-7)單克隆抗體 WB; IHC; ICC; IP.
MAS085Mi21 血管緊張素1-7(Ang1-7)單克隆抗體 WB; IHC; ICC; IP.
CES085Mi 血管緊張素1-7(Ang1-7)檢測試劑盒(酶聯(lián)免疫吸附試驗法) Enzyme-linked immunosorbent assay for Antigen Detection.
LMS085Mi 血管緊張素1-7(Ang1-7)等多因子檢測試劑盒(流式熒光發(fā)光法) FLIA Kit for Antigen Detection.

參考文獻

雜志 參考文獻
J Stroke Cerebrovasc Dis Improvement of Plasma Biomarkers after Switching Stroke Patients from Other Angiotensin II Type I Receptor Blockers to Olmesartan [PubMed: 25891757]
Cellular Physiology and Biochemistry Angiotensin-(1-7) in Paraventricular Nucleus Contributes to the Enhanced Cardiac Sympathetic Afferent Reflex and Sympathetic Activity in Chronic Heart Failure Rats [pubmed:28848201]
Frontiers in Physiology Hydrogen Sulfide Attenuates Atherosclerosis in a Partially Ligated Carotid Artery Mouse model via Regulating Angiotensin Converting Enzyme 2 Expression [pubmed:29066981]
Molecular Medicine Reports The ACE2-Ang (1-7)-Mas receptor axis attenuates cardiac remodeling and fibrosis in post-myocardial infarction. [pubmed:28656296]
Journal of Clinical Pharmacy and Therapeutics Relationship between genetic variants of ACE2 gene and circulating levels of ACE2 and its metabolites. [pubmed:28895159]
Molecular Medicine Reports Effects of IQP, VEP and Spirulina platensis hydrolysates on the local kidney renin angiotensin system in spontaneously hypertensive rats [pubmed:28944898]
Open Journal of Endocrine and Metabolic Diseases Paper Submission A Study of the Correlation between Angiotensin (1-7) and the Histopathological Changes in the Penises of Experimentally Diabetic Rats [2-1980272_83198.htm]
Journal of the American Society of Hypertension Mesenchymal stem cell–derived microvesicles alleviate pulmonary arterial hypertension by regulating renin-angiotensin system [Pubmed:29752040]
Innate?Immunity? Lipoxin A attenuates LPS-induced acute lung injury via activation of the ACE2-Ang-(1-7)-Mas axis [Pubmed:29969931]
Evidence-based?Complementary and Alternative?Medicine? Acute Biochemical, Cardiovascular, and Autonomic Response to Hyperbaric (4 atm) Exposure in Healthy Subjects [Pubmed:29977313]
European Journal of Obstetrics & Gynecology and Reproductive Biology The impact of ovulation inducing drugs on carcinogenesis []
European Journal of Obstetrics & Gynecology and Reproductive Biology Changes of angiotensin II (1–8) and angiotensin (1–7) levels in early and late-onset preeclampsia []
Journals of Gerontology Series A-Biological Sciences and Medical Sciences Therapeutic Delivery of Ang (1-7) Via Genetically Modified Probiotic: A Dosing Study. [Pubmed: 31586210]
journal of the european academy of dermatology and venereology Significance of the angiotensin I/angiotensin II/angiotensin‐(1‐7) axis in the pathogenesis of systemic sclerosis [Pubmed: 31746507]
Medicine Alteration and association between serum ACE2/angiotensin (1-7)/Mas axis and oxidative stress in chronic kidney disease: A pilot study [Pubmed: 32756181]
Dikkat Eksikli?i Hiperaktivite Bozuklu?u Tan?s? Olan Anjiyotensin I, II, III, Alamandin peptid, Anjiyotensin D?nü?türücü Enzim (ACE), NADPH Oksidaz Enzim Serum?… []
Amino Acids Angiotensin-(1¨C7) attenuates collagen-induced arthritis via inhibiting oxidative stress in rats [33398523]
Autoimmunity The prevalence and role of functional autoantibodies to angiotensin-converting-enzyme-2 in patients with systemic sclerosis [33910447]
researchsquare Ang-(1-7) Protects Skeletal Muscle Function in Aged Mice []
Peptides Angiotensin-(1-7) protects against sepsis-associated left ventricular dysfunction induced by lipopolysaccharide [34298021]
BMC Musculoskeletal Disorders Ang-(1–7) protects skeletal muscle function in aged mice [34548056]
J Cardiovasc Pharmacol Resveratrol Confers Protection Against Ischemia/Reperfusion Injury by Increase of Angiotensin (1-7) Expression in a Rat Model of Myocardial Hypertrophy [34232225]
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