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甲狀旁腺激素(PTH)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Parathyroid Hormone (PTH)

iPTH; Intact Parathyroid Hormone; Parathormone; Parathyrin

  • 甲狀旁腺激素(PTH)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 甲狀旁腺激素(PTH)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 甲狀旁腺激素(PTH)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 實(shí)驗(yàn)結(jié)果圖
  • CEA866Bo.jpg 標(biāo)準(zhǔn)曲線圖
  • Certificate 通過(guò)ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測(cè)甲狀旁腺激素(PTH),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甲狀旁腺激素(PTH)(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) 79-91 84
EDTA plasma(n=5) 93-102 98
heparin plasma(n=5) 93-101 97

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)加入適量的甲狀旁腺激素(PTH),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甲狀旁腺激素(PTH)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) 81-95% 93-102% 79-95% 80-96%
EDTA plasma(n=5) 80-89% 88-101% 95-103% 88-98%
heparin plasma(n=5) 87-101% 91-98% 79-98% 78-97%

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。將甲狀旁腺激素(PTH)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。

相關(guān)產(chǎn)品

編號(hào) 適用物種:Bos taurus; Bovine (Cattle,牛) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
URPA866Bo01 甲狀旁腺激素(PTH)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
UCPA866Bo11 甲狀旁腺激素(PTH)牛血清白蛋白偶聯(lián)物 Immunogen; SDS-PAGE; WB.
UCPA866Bo21 甲狀旁腺激素(PTH)卵白蛋白偶聯(lián)物 Immunogen; SDS-PAGE; WB.
UPAA866Bo08 甲狀旁腺激素(PTH)多克隆抗體 Testing in progress.
UPAA866Bo01 甲狀旁腺激素(PTH)多克隆抗體 Testing in progress
UCEA866Bo 甲狀旁腺激素(PTH)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.
ULMA866Bo 甲狀旁腺激素(PTH)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)
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Nutr Hosp. Effect of the “protein diet” and bone tissue. [Pubmed: 24483972]
Clinical Cancer Research Zoledronic acid has differential anti-tumour activity in the pre-and post-menopausal bone microenvironment in vivo [Aacrjournals: Source]
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Academic Journal Effect of whole body vibration on healthy rat plasma parameters [Ebscohost: Source]
J Proteome Res. Biomarkers identified by urinary metabonomics for noninvasive diagnosis of nutritional rickets [Pubmed:25051233]
Medicine (Baltimore) An Attempt to Evaluate Selected Aspects of “Bone–Fat Axis” Function in Healthy Individuals and Patients With Pancreatic Cancer [PubMed: 26266370]
J Nutr Sci Vitaminol (Tokyo) The Impact of Different Amounts of Calcium Intake on Bone Mass and Arterial Calcification in Ovariectomized Rats [PubMed: 26639847]
The Korean Society of Pharmacognosy Effects of Oryza sativa L. Aleurone Layer Extract on Bone Mineral Density and Bone-related Markers in the Ovariectomized Rat [Article: Hksobf_2015_V46N2_167]
J?Bone?Miner Res Fat and Sucrose Intake Induces Obesity‐Related Bone Metabolism Disturbances: Kinetic and Reversibility Studies in Growing and Adult Rats [Pubmed:26175082]
7 Cell-matrix signals specify bone endothelial cells during developmental osteogenesis. [pubmed:28218908]
PLOS?ONE Prostaglandin-E2?Mediated?Increase?in?Calcium?and?Phosphate?Excretion?in a?Mouse?Model?ofDistal?Nephron?Salt?Wasting. [pubmed:27442254]
International Journal of Advanced Research in Biological Sciences Effects of fatty acids, nutrients and whole body vibration on bone histomorphometry, mechanical properties and metabolic parameters in male rat [10.22192/ijarbs.2017.04.04.018]
American Journal of Physiology-Renal?Physiology Chronic nicotine exposure reduces klotho expression and triggers different renal and hemodynamic responses in -haploinsufficient mice [Pubmed:29363324]
Tropical?Animal?Health?and Production Dietary supplementation for Santa Inês hair ewes on pasture at pre-and postpartum periods: dry matter intake, digestibility, milk production, and mineral metabolism [Pubmed:29931604]
International Immunopharmacology CD8+ T lymphocytes enhance the anabolic effect of intermittent parathyroid hormone on cementoblasts [Pubmed: 31679847]
ENDOCRINOLOGY A New Therapeutic Approach Using a Calcilytic (AXT914) for Post-Surgical Hypoparathyroidism in Female Rats [Pubmed: 32852547]
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Oxid Med Cell Longev Long-Term Administration of Abacavir and Etravirine Impairs Semen Quality and Alters Redox System and Bone Metabolism in Growing Male Wistar Rats [34373766]
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African Health Sciences Fibroblast Growth Factor 23 (FGF 23) and intact parathyroid hormone (iPTH) as markers of mineral bone disease among Nigerians with non-diabetic kidney disease []
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