【阿爾茨海默病檢測&分析研究】Aβ澱粉樣蛋白1-42/ β-分泌酶(BACE1)活性檢測Abcam (Biovision)
【Alzheimer’s disease 阿爾茨海默病檢測與分析研究】-Abcam (Biovision)

BIOVISION提供β-分泌酶(BACE1)活性測定試劑盒、 澱粉樣蛋白β42(人)ELISA試劑盒、 β澱粉樣蛋白1-42(Aβ42)配體篩選檢測。進一步研究是一種慢性神經退行性疾病-阿爾茨海默病。阿爾茨海默病是一種慢性神經退行性疾病。它是由患有這種疾病的患者的大腦中發現的澱粉樣蛋白斑的積累引起的。斑塊主要由β澱粉樣蛋白(Aβ)肽組成:Aβ(1-40)和Aβ(1-42)。最近的研究表明,患有阿爾茨海默病的患者腦組織,腦脊液(CSF)和血漿中存在兩種β澱粉樣蛋白肽(Aβ(1-40)和Aβ(1-42))。聚集的Aβ(1-42)被認為是用於診斷阿爾茨海默氏病的有效生物標誌物。β澱粉樣蛋白1-42(Aβ42)配體篩選檢測(螢光) | 貨號K570-100; 是一套Aβ42配體快速篩選檢測商品。篩選可預防聚集的Aβ42配體對於開發潛在的治療方法至關重要。 澱粉樣蛋白β42(人)ELISA試劑盒則為夾心ELISA檢測,用於定量測量血清,血漿和細胞培養上清液中的人澱粉樣蛋白β42。顏色密度與從樣品中捕獲的人澱粉樣蛋白β42的量成比例。澱粉樣蛋白β(Aβ或Abeta)表示36-43個氨基酸的肽,其作為阿爾茨海默病患者腦中發現的澱粉樣斑塊的主要成分,與阿爾茨海默病密切相關。β-分泌酶(BACE1)活性測定試劑盒,用於分析β-分泌酶之活性; β-分泌酶(EC 3.4.23.46),也稱為BACE1(APP切割酶的β-位點)或memapsin-2(膜相關的天冬氨酸蛋白酶),是天冬氨酸 – 蛋白酶。與γ-分泌酶一起,BACE1切割APP(膜錨定的澱粉樣蛋白前體蛋白)並產生可溶性澱粉樣蛋白-β(Aβ)。 Aβ的累積是阿爾茨海默病發病的關鍵事件,因此監測和靶向BACE1活性對於研究和開發可以緩解/治愈阿爾茨海默病的治療策略是重要的。最近的研究表明,用合成化合物抑制BACE1活性有助於減緩或阻止阿爾茨海默病的症狀。BIOVISION提供β-分泌酶(BACE1)活性測定試劑盒、 澱粉樣蛋白β42(人)ELISA試劑盒、 β澱粉樣蛋白1-42(Aβ42)配體篩選檢測。進一步研究是一種慢性神經退行性疾病-阿爾茨海默病。
β-分泌酶(BACE1)活性測定試劑盒(螢光) | 貨號K388
β-Secretase (BACE1) Activity Assay Kit (Fluorometric)

產品描述: BioVision的BACE1檢測試劑盒II提供了一種快速簡便的方法,可用於測量各種樣品中的BACE1活性。在該試劑盒中,分泌酶特異性肽與兩種報告分子EDANS和DABCYL綴合。在未切割的形式中,來自EDANS的螢光發射通過DABCYL部分的物理接近而猝滅。通過BACE1切割肽分離EDANS和DABCYL基團,允許釋放強螢光信號(Ex / Em = 345 / 500nm)。樣品中分泌酶活性的水平與螢光強度水平成比例。該測定簡單,靈敏,高通量適應性,並且可以檢測每個樣品低至0.2μU的BACE1活性。


| Cat # +Size | K388-100 |
| Size | 100 assays |
| Kit Summary | • Detection method- Fluorescence (Ex/Em 335-355/ 495-510 nm) • Species reactivity- Eukaryotes • Applications- Convenient fluorescence method for detecting β-secretase activity in biological and purified samples. |
| Detection Method | Fluorescence (Ex/Em 335-355/ 495-510 nm) |
| Species Reactivity | Eukaryotes |
| Applications | Convenient fluorescence method for detecting β-secretase activity in biological and purified samples. |
| Features & Benefits | • Simple procedure; takes ~ 1 hour • Fast and convenient • The assay is sensitive, stable and high-throughput adaptable. • EDANS standard included |
| Kit Components | • BACE1 Extraction Buffer • BACE1 Assay Buffer • BACE1 Substrate (in DMSO) • BACE1 Positive Control • EDANS Standard (100 µM) • BACE1 Inhibitor Control (in DMSO) |
Amyloid Beta 42 (Human) ELISA Kit
產品描述: BioVision的澱粉樣蛋白β42ELISA試劑盒是一種夾心ELISA檢測,用於定量測量血清,血漿和細胞培養上清液中的人澱粉樣蛋白β42。顏色密度與從樣品中捕獲的人澱粉樣蛋白β42的量成比例。

| Cat # +Size | E4288-100 |
| Size | 100 assays |
| Kit Summary | • Detection method- Absorbance (450 nm) • Species reactivity- Human • Application- quantitative measurement of Amyloid beta 42 in human serum, plasma, tissue homogenates and other biological fluids. |
| Detection Method | Absorbance (450 nm) |
| Species Reactivity | Human |
| Applications | This ELISA kit is used for quantitative measurement of Amyloid beta 42 in human serum, plasma, tissue homogenates and other biological fluids. |
| Features & Benefits | • Easy, convenient and time-saving method to measure the level of Amyloid beta 24 alpha in human serum, plasma, tissue homogenates, culture supernatants and other biological fluids. • Detection Range: 15.62 – 1000 pg/ml • Sensitivity: < 9.375 pg/ml • Assay Precision: Intra-Assay: CV < 8%; Inter-Assay: CV < 10% • Cross Reactivity: No significant cross-reactivity or interference between this analyte and its analogues was observed. |
| Kit Components | • Micro ELISA Plate • Lyophilized Standard • Sample / Standard dilution buffer • Biotin- detection antibody (Concentrated) • Antibody dilution buffer • HRP-Streptavidin Conjugate (SABC) • SABC dilution buffer • TMB substrate • Stop Solution • Wash buffer (25X) • Plate sealers |
β澱粉樣蛋白1-42(Aβ42)配體篩選檢測(螢光) | 貨號K570-100
Beta Amyloid 1- 42 (Aβ42) Ligand Screening Assay Kit (Fluorometric)
產品描述:BioVisionβ澱粉樣蛋白1-42(Aβ42)配體篩選試劑盒中,染料與聚集的澱粉樣肽的β折疊結合,產生強螢光產物(Ex / Em:440 / 490nm)。在Aβ42配體存在下,該反應被阻止/消除,導致螢光減少或完全喪失。該試驗可用於篩選Aβ42配體以開發抗阿爾茨海默病的潛在治療劑。測定簡單,可靠和高通量的適應性篩選測定。

| Cat # +Size | K570-100 |
| Size | 100 assays |
| Kit Summary | • Detection method – Fluorescence (Ex/Em 440/490 nm) • Species reactivity – Eukaryotes • Applications – Screening of drugs and novel ligands for interaction with Beta Amyloid 1-42 (Aβ42 |
| Detection Method | Fluorescence (Ex/Em 440/490 nm) |
| Species Reactivity | Aβ42 |
| Applications | • Rapid, high-throughput screening of drugs and novel ligands. • Development of structure-activity relationship (SAR) models to predictAβ42/ligand interaction liability of novel compounds. |
| Features & Benefits | • Simple, highly sensitive, high-throughput compatible • Rapid screening of Aβ42 ligands • Kit includes the Aβ42 ligand control and a stable, Aβ42 peptide |
| Kit Components | • Aβ42 Assay Buffer • Aβ42 Probe (100X, in DMSO) • Aβ42 Peptide • Aβ42 Inhibitor (100X, in DMSO) • 10 mM NaOH |
Protein Carbonyl Content Assay Kit (Fluorometric)

產品描述:長期升高的血糖水平會產生糖的微環境,與非酶促加合物的氨基酸共價反應,發生Protein carbonylation蛋白質羰基化。Oxidative stress氧化應激ROS的過量產生,也可以產生Protein carbonylation蛋白質羰基化合物。隨著時間的推移,這兩個過程會產生蛋白質的高級糖基化終產物(AGEs)。蛋白質反應性AGEs的主要功能結果是酶活性降低。可溶性AGE還可以結合併激活晚期糖基化終產物(advanced glycation end-products , RAGE)的受體。Receptor-dependent outcomes受體依賴性結果導致tissue dysfunction,組織功能障礙、oxidative stress氧化應激和activation of monocytes單核細胞活化、endothelial cells內皮細胞和mesangial cells系膜細胞的活化。

在Alzheimer’s Disease阿爾茨海默氏病(AD)中,羰基化合物是大腦中氧化應激的標誌物,並且在血清和血漿中與認知嚴重程度成比例地升高。 BioVision的蛋白質羰基含量測定試劑盒使用Fluoroscein-5-Thiosemicarbazide (FTC)螢光探針(FTC),螢光探針與蛋白質上的氧化殘基(即半胱氨酸,賴氨酸,精氨酸,組氨酸和天冬氨酸)共價反應。通過產生穩定的螢光信號(Ex / Em 485 /535nm)確定蛋白質羰基含量,並與在BCA測定中測定的蛋白質濃度進行比較,以定量羰基/ mg蛋白質的nmoles。該試劑盒操作簡單,不需要刺激性化學物質,可以定量血清或血漿中的羰基化合物,並且比同等比色測定法產生更可靠和可重複的結果。它可以檢測蛋白質濃度低至1毫克/毫升的樣品中的羰基。

| Cat # +Size | K563-100 |
| Size | 100 assays |
| Kit Summary | • Detection method- Fluorometric (Ex/Em 485/535 nm) • Species reactivity- Mammalian |
| Detection Method | Fluorometric (Ex/Em 485/535 nm) |
| Species Reactivity | Mammalian |
| Applications | Quantification of carbonyl content as a putative biomarker for research in disease areas such as diabetes, multiple sclerosis, and Alzheimer’s diseas |
| Features & Benefits | Simple procedure; validated with human serum samples containing pmol of carbonylated protein |
| Kit Components | • Protein Carbonyl Assay Buffer • 100% TCA Solution • 10% Streptozocin Solution • 6 M Guanidine Solution • Sample Dilution Buffer • FTC (10 mM in DMSO) • Positive Control Protein (10 mg/ml) |