食欲素A(OXA)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)
ELISA Kit for Orexin A (OXA)
Hypocretin-1
- 編號UCEA607Hu
 - 物種Homo sapiens (Human,人) 相同的名稱,不同的物種。
 - 實(shí)驗(yàn)方法競爭抑制
 - 反應(yīng)時長2h
 - 檢測范圍12.35-1,000pg/mL
 - 靈敏度最小可檢測劑量小于等于5.05pg/mL.
 - 樣本類型serum, plasma and other biological fluids
 - 下載 英文說明書 中文說明書
 - 規(guī)格 48T96T 96T*5 96T*10 96T*100
 - 價格 ¥ 1323 ¥ 1890 ¥ 8505 ¥ 16065 ¥ 132300
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特異性
                        本試劑盒用于檢測食欲素A(OXA),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食欲素A(OXA)(加標(biāo)樣品),重復(fù)測定并計(jì)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) | 87-101 | 92 | 
| EDTA plasma(n=5) | 84-91 | 88 | 
| heparin plasma(n=5) | 98-105 | 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(jìn)行定量檢測,每份樣本連續(xù)測定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個不同批次的試劑盒分別對低、中、高值定值樣本進(jìn)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(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)加入適量的食欲素A(OXA),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食欲素A(OXA)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) | 89-101% | 88-101% | 94-103% | 82-103% | 
| EDTA plasma(n=5) | 85-95% | 79-91% | 83-97% | 89-104% | 
| heparin plasma(n=5) | 78-89% | 92-101% | 92-105% | 89-103% | 
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(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(shí)驗(yàn)原理
本試劑盒應(yīng)用競爭抑制酶聯(lián)免疫分析法測定標(biāo)本中待測物質(zhì)水平。將食欲素A(OXA)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(biāo)記的抗原和待測抗原(標(biāo)準(zhǔn)品或樣本),待測抗原與生物素標(biāo)記抗原對特異性抗體進(jìn)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(biāo)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(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。待測標(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),而與樣品中待測物質(zhì)含量呈負(fù)相關(guān)。用酶標(biāo)儀在450nm波長下測定吸光度(O.D.值),計(jì)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!) | 
| UCEA607Hu | 食欲素A(OXA)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) | Enzyme-linked immunosorbent assay for Antigen Detection. | 
| ULMA607Hu | 食欲素A(OXA)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(xiàn)
| 雜志 | 參考文獻(xiàn) | 
| Frontiers in Neurology | Neuro-Glial and Systemic Mechanisms of Pathological Responses in Rat Models of Primary Blast Overpressure Compared to “Composite” Blast [PubMed: PMC3275793] | 
| Neurological Sciences | Pentylenetetrazol-induced seizures are exacerbated by sleep deprivation through orexin receptor-mediated hippocampal cell proliferation [Pubmed: 23852314] | 
| Peptides | Orexin-A-induced ERK1/2 activation reverses impaired spatial learning and memory in pentylenetetrazol-kindled rats via OX1R-mediated hippocampal neurogenesis. [Pubmed: 24321199] | 
| Alcohol Alcohol | Orexin in Patients with Alcohol Dependence Treated for Relapse Prevention: A Pilot Study [PubMed: 26597795] | 
| Indian Journal of Medical Research and Pharmaceutical Sciences | Evaluation of Antidiabetic And Insulintropic Potential of Nigella Sativa Seeds Water Extract and /or Alpha Lipoic Acid in Type 2 Diabetic Rats [Issues%20Pdf: Vol.2] | 
| J Clin Res Pediatr Endocninol | Correlation of Brain Neuropeptide (Nesfatin-1 and Orexin-A) Concentrations with Anthropometric and Biochemical Parameters in Malnourished Children [PubMed: 26831553] | 
| Neural Regen Res | Resuscitation therapy for traumatic brain injury-induced coma in rats: mechanisms of median nerve electrical stimulation [PubMed: 26170820] | 
| Mol Med Rep | Wake-promoting actions of median nerve stimulation in TBI-induced coma: An investigation of orexin-A and orexin receptor 1 in the hypothalamic region [PubMed: 26059340] | 
| Mol Neurobiol | Application of the Co-culture Membrane System Pointed to a Protective Role of Catestatin on Hippocampal Plus Hypothalamic Neurons Exposed to Oxygen and Glucose Deprivation [article:10.1007] | 
| Neural?Regeneration Research | Wake-promoting effects of vagus nerve stimulation after traumatic brain injury: upregulation of orexin-A and orexin receptor type 1 expression in the prefrontal?… [Pubmed:29557373] | 
| Journal of Translational Medicine | Recurrent circadian fasting (RCF) improves blood pressure, biomarkers of cardiometabolic risk and regulates inflammation in men [Pubmed: 31426866] | 
| iraqi journal of science | Relationship Between Orexin-A and Insulin Resistance in Patients with Type 2 Diabetes Mellitus [] | 
| Brain Sci | Changes in the Orexin System in Rats Exhibiting Learned Helplessness Behaviors [34942932] | 

                    
                    
                                    
