Multiplex Assay Kit for Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array)

Tight Junction Protein Occludin TM4 Minus

Specificity

This assay has high sensitivity and excellent specificity for detection of Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array).
No significant cross-reactivity or interference between Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) and the recovery rates were calculated by comparing the measured value to the expected amount of Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 96-105 101
EDTA plasma(n=5) 98-105 101
heparin plasma(n=5) 94-103 99

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 92-101% 83-102% 85-99% 79-96%
EDTA plasma(n=5) 88-96% 93-105% 78-101% 94-101%
heparin plasma(n=5) 78-99% 89-101% 97-105% 95-102%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity

Assay procedure summary

1. Add 200μL analysis buffer solution to each well of the plate for pre-wetting;
2. Preparation of standards, reagents and samples before the experiment;
3. Add 100μL standard or sample to each well, add 10μL magnetic beads, and incubate 120 minutes protect from light at 25°C on shaker;
4. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60 minutes protect from light at 25°C on shaker;
5. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent B, and incubate 30 minutes protect from light at 25°C on shaker;
6. Wash plate once on magnetic frame;
7. Add 100μL sheath fluid, swirl for 10 minutes, read on the machine.

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Magazine Citations
Brain Research HIV-1 Tat protein increases the permeability of brain endothelial cells by both inhibiting occludin expression and cleaving occludin via matrix metalloproteinase-9 ScienceDirect: S0006899311021408
Plos one Disruption of the Circadian Clock in Mice Increases Intestinal Permeability and Promotes Alcohol-Induced Hepatic Pathology and Inflammation PubMed: PMC3688973
Journal of Neurotrauma A new panel of blood biomarkers for the diagnosis of mild traumatic brain injury/concussion in adults PubMed: 25794137
United States Patent Application Methods for Diagnosis and Treatment of Concussion or Brain Injury 2016:0103140
Sci Rep.  Blood Occludin Level as a Potential Biomarker for Early Blood Brain Barrier Damage Following Ischemic Stroke articles:srep40331
Frontiers in Pharmacology Traditional Herbal Medicine-Derived Sulforaphene LFS-01 Reverses Colitis in Mice by Selectively Altering the Gut Microbiota and Promoting Intestinal … Pubmed:29375374
Thorax Fas activation alters tight junction proteins in acute lung injury Pubmed: 30385692
Antioxidants (Basel). The Effect of Dietary Quercetin on the Glutathione Redox System and Small Intestinal Functionality of Weaned Piglets Pubmed: 31426309
DISEASE MARKERS Peripheral blood occludin level as a biomarker for preoperative cerebral edema in patients with brain tumors Pubmed: 32884584
Burns Open Intestinal Permeability in Participants With Thermal Injury: A Case Series From a Prospective, Longitudinal Study (HESTIA)
PLoS One A comparison of the effects of monotherapy with rosuvastatin, atorvastatin or ezetimibe versus combination treatment with rosuvastatin-ezetimibe and … 34492054
CNS Neuroscience & Therapeutics Higher serum occludin after successful reperfusion Is associated with early neurological deterioration Pubmed:35338575
Impact de l'incorporation d'acides gras à chaine moyenne, de suppléments de levures et d'avoine nue sur la santé intestinale ainsi que sur la consommation …
Catalog No. Related products for research use of Homo sapiens (Human) Organism species Applications (RESEARCH USE ONLY!)
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SEC228Hu ELISA Kit for Occludin (OCLN) Enzyme-linked immunosorbent assay for Antigen Detection.
CMC228Hu Multiplex Assay Kit for Occludin (OCLN) ,etc. by CBA (Cytometric Bead Array) FLIA Kit for Antigen Detection.
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