Multiplex Assay Kit for Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) 
b-EP
Overview
Properties
- Product No.CMA806Eq
- Organism SpeciesEquus caballus; Equine (Horse) Same name, Different species.
- ApplicationsFLIA Kit for Antigen Detection.
Research use only - DownloadInstruction Manual
- CategorySignal transductionEndocrinologyNeuro scienceHormone metabolism
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Packages (Simulation)
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Packages (Simulation)
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ISO9001: 2008, ISO13485: 2003 Registered
Recovery
Matrices listed below were spiked with certain level of recombinant Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) and the recovery rates were calculated by comparing the measured value to the expected amount of Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 95-103 | 101 |
| EDTA plasma(n=5) | 93-104 | 101 |
| heparin plasma(n=5) | 80-89 | 84 |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Beta-Endorphin (bEP) ,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 Beta-Endorphin (bEP) ,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 Beta-Endorphin (bEP) ,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) | 99-105% | 92-105% | 84-102% | 95-102% |
| EDTA plasma(n=5) | 79-94% | 88-105% | 90-101% | 80-96% |
| heparin plasma(n=5) | 80-101% | 91-105% | 92-101% | 96-105% |
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 |
| 96-well plate | 1 | Plate sealer for 96 wells | 4 |
| Pre-Mixed Standard | 2 | Standard Diluent | 1×20mL |
| Pre-Mixed Magnetic beads (22#:bEP) | 1 | Analysis buffer | 1×20mL |
| Pre-Mixed Detection Reagent A | 1×120μL | Assay Diluent A | 1×12mL |
| Detection Reagent B (PE-SA) | 1×120μL | Assay Diluent B | 1×12mL |
| Sheath Fluid | 1×10mL | Wash Buffer (30 × concentrate) | 1×20mL |
| Instruction manual | 1 |
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 50μL standard or sample to each well, add 50μL prepared Detection Reagent A, add 10μL magnetic beads, and incubate 90 minutes protect from light at 25°C on shaker;
4. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent B, and incubate 30 minutes protect from light at 25°C on shaker;
5. Wash plate once on magnetic frame;
6. Add 100μL sheath fluid, swirl for 10 minutes, read on the machine.
Test principle
Anti-Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) antibody was coated on the surface of magnetic beads. A competitive inhibition reaction is launched between biotin labeled Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) and unlabeled Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) (Standards or samples) with the pre-coated antibody specific to Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array). PE-labeled avidin was added. The amount of bound PE conjugate is reverse proportional to the concentration of Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) in the sample, the intensity of MFI developed is reverse proportional to the concentration of Beta-Endorphin (bEP) ,etc. by CBA (Cytometric Bead Array) in the sample.
Giveaways
Increment services
Citations
- Endogenous μ-opioid peptides modulate immune response towards malignant melanomaPublish: RD10279
- Physiology and cell biology of acupuncture observed in calcium signaling activated by acoustic shear wave SpringerLink: tv015l3126833315
- Effect of Ramadan fasting on endorphin and endocannabinoid level in serum, PBMC and macrophageIjpsi: Source
- Evaluation of immune parameters in chronic migraine with medication overusePubmed:24867859
- Cerebrospinal fluid and plasma b-endorphin levels in children with cerebral malaria.pubmed:28413714
- Ultraviolet A photosensitivity profile of dexchlorpheniramine maleate and promethazine-based creams: Anti-inflammatory,antihistaminic, and skin barrier protection propertiesDOI: 10.1111/jocd.12349
- Non‐pharmacological interventions during childbirth for pain relief, anxiety, and neuroendocrine stress parameters: A randomized controlled trialPubmed:29512230
- КОРРЕКЦИЯ ЦИТОКИНОВОГО И ГОРМОНАЛЬНОГО ДИСБАЛАНСА ПРИ ЛЕЧЕНИИ СТАБИЛЬНОЙ СТЕНОКАРДИИ НАПРЯЖЕНИЯ10.25207:1608-6228-2018-25-3-51-55
- Plasma and cerebrospinal fluid beta-endorphin levels show a strong association in children with cerebral malaria
- Blood dopamine level enhanced by caffeine in men after treadmill runningPubmed: 31793465
- Blue light (λ= 453 nm) nitric oxide dependently induces β-endorphin production of human skin keratinocytes in-vitro and increases systemic β-endorphin levels in …Pubmed: 31553937
- Between pleasure and pain: a pilot study on the biological mechanisms associated with BDSM interactions in dominants and submissivesPubmed: 32044259
- Pain Sensitivity and Plasma Beta-Endorphin in Adolescent Non-Suicidal Self-InjuryPubmed: 32961416
- Serum β-endorphin levels are associated with addiction to suicidal behavior: a pilot studyPubmed: 32855024
- Efficacy of Acupuncture on Pain Mechanisms, Inflammatory Responses, and Wound Healing in the Acute Phase of Major Burns: An Experimental Study on Rats34309681
- Effects of transcutaneous electrical nerve stimulation applied at different frequencies during labor on hormone levels, labor pain perception, and anxiety: a randomized …