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神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法)

ELISA Kit for Neuropeptide Y (NPY)

NP-Y; PYY4; CPON; Pro-neuropeptide Y; Neuropeptide tyrosine; C-flanking peptide of NPY

  • 神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法)產(chǎn)品包裝(模擬)
  • 神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法)產(chǎn)品包裝(模擬)
  • 神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法)實驗結(jié)果圖
  • CEA879Hu.jpg標準曲線圖
  • Certificate通過ISO 9001、ISO 13485質(zhì)量體系認證

特異性

本試劑盒用于檢測神經(jīng)肽Y(NPY),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(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神經(jīng)肽Y(NPY)(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)94-10399
EDTA plasma(n=5)78-8885
heparin plasma(n=5)81-10487

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)加入適量的神經(jīng)肽Y(NPY),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神經(jīng)肽Y(NPY)含量的測定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)90-99%94-105%95-104%96-103%
EDTA plasma(n=5)95-103%83-102%97-105%97-104%
heparin plasma(n=5)78-93%80-92%84-91%86-93%

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。將神經(jīng)肽Y(NPY)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)應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPA879Hu01神經(jīng)肽Y(NPY)重組蛋白Positive Control; Immunogen; SDS-PAGE; WB.
CPA879Hu22神經(jīng)肽Y(NPY)卵白蛋白偶聯(lián)物Immunogen; SDS-PAGE; WB.
CPA879Hu21神經(jīng)肽Y(NPY)卵白蛋白偶聯(lián)物Immunogen; SDS-PAGE; WB.
PAA879Hu08神經(jīng)肽Y(NPY)多克隆抗體WB; IHC; ICC; IP.
PAA879Hu01神經(jīng)肽Y(NPY)多克隆抗體WB; IHC; ICC; IP.
LAA879Hu71神經(jīng)肽Y(NPY)多克隆抗體(生物素標記)WB; IHC; ICC.
MAA879Hu22神經(jīng)肽Y(NPY)單克隆抗體WB; IHC; ICC; IP.
MEA879Hu神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法,小樣本)Enzyme-linked immunosorbent assay for Antigen Detection.
CEA879Hu神經(jīng)肽Y(NPY)檢測試劑盒(酶聯(lián)免疫吸附試驗法)Enzyme-linked immunosorbent assay for Antigen Detection.
LMA879Hu神經(jīng)肽Y(NPY)等多因子檢測試劑盒(流式熒光發(fā)光法)FLIA Kit for Antigen Detection.
KSA879Hu11神經(jīng)肽Y(NPY)檢測試劑盒DIY材料(酶聯(lián)免疫吸附試驗法)Main materials for "Do It (ELISA Kit) Yourself".

參考文獻

雜志參考文獻
Hemodialysis International Is there any interaction of resistin and adiponectin levels with protein‐energy wasting among patients with chronic kidney disease[Onlinelibrary: hdi.12072]
Journal of Pediatric Endocrinology and MetabolismChanges in growth pattern, leptin ghrelin and neuropeptide Y levels after adenotonsillectomy in prepubertal children[Degruyter: Source]
Ren Fail. The role of adipocytokines on depressive symptoms of patients with chronic kidney disease[Pubmed: 23879728]
Coronary Artery DiseaseThe relationship of plasma neuropeptide Y levels with coronary collateral development.[Pubmed: 24077326]
Coronary Artery DiseaseThe relationship of plasma neuropeptide Y levels with coronary collateral development[Lww:Source]
Toxicology LettersPossible role of serotonin and neuropeptide Y on the disruption of the reproductive axis activity by perfluorooctane sulfonate[Pubmed:25623392]
J Neurosurg AnesthesiolHigh Plasma Levels of Neuropeptide Y Correlate With Good Clinical Outcome But are not Correlated to Cerebral Blood Flow or Vasospasm After Subarachnoid Hemorrhage[PubMed: 25955865]
Journal of Diabetes ResearchHigh Intensity Aerobic Exercise Training Improves Deficits of Cardiovascular Autonomic Function in a Rat Model of Type 1 Diabetes Mellitus with Moderate …[Pubmed:26885531]
Archives of Gynecology and ObstetricsBinge eating and biochemical markers of appetite in new users of the contraceptive depot medroxyprogesterone acetate[pubmed:27604241]
basic & clinical pharmacology & toxicology Effects of Di-isononyl Phthalate on Neuropeptide Y Expression in Differentiating Human Neuronal Cells.[pubmed:27625336]
Acta?Neurobiologiae ExperimentalisAberrant changes of somatostatin and neuropeptide Y in brain of a genetic rat model for epilepsy: tremor rat[pubmed:27685769]
Cardiovascular?researchNur77 protects against adverse cardiac remodelling by limiting Neuropeptide Y signalling in the sympathoadrenal-cardiac axis[Pubmed:29850786]
Journal of PeriodontologySalivary neuropeptides, stress, and periodontitis[Pubmed:28914594]
NeuropeptidesMechanisms of sustained long-term weight loss after RYGB: α-MSH is a key factor[Pubmed:29685637]
PharmacologyMelatonin Induces Osteoblastic Differentiation of Mesenchymal Stem Cells and Promotes Fracture Healing in a Rat Model of Femoral Fracture via Neuropeptide Y?…[Pubmed: 30227410]
Marmara Medical JournalInvestigation of the relationship between insulin resistance and neuropeptide Y levels in polycystic ovary syndrome[]
Marmara Medical JournalInvestigation of the relationship between insulin resistance and neuropeptide Y levels in polycystic ovary syndrome.[]
neurochemical researchSevoflurane Induces Hippocampal Neuronal Apoptosis by Altering the Level of Neuropeptide Y in Neonatal Rats.[Pubmed: 32378074]
Hum PsychopharmacolSerum levels of neuropeptide Y in patients with chronic schizophrenia during treatment augmentation with sarcosine (results of the double?\blind randomized??-[33245168]
Arch ToxicolSerotonin involvement in okadaic acid-induced diarrhoea in vivo[34148100]