Multiplex Assay Kit for Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay)

ACV-A; Activin Beta A Beta A Homodimer

(Note: Up to 8-plex in one testing reaction)

Specificity

This assay has high sensitivity and excellent specificity for detection of Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 86-101 95
EDTA plasma(n=5) 83-90 87
heparin plasma(n=5) 79-104 87

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) 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 Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay) 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) 83-97% 80-91% 85-102% 86-95%
EDTA plasma(n=5) 95-105% 82-97% 98-105% 87-103%
heparin plasma(n=5) 80-94% 80-90% 83-93% 88-103%

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#:ACVA) 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. Preparation of standards, reagents and samples before the experiment;
2. Add 50μL standard or sample to each well,
    add 10μL magnetic beads,and 50μL Detection Reagent A,incubate 60min at 37°C on shaker;
3. Wash plate on magnetic frame for three times;
4. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
5. Wash plate on magnetic frame for three times;
6. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.

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Magazine Citations
13 Secretory Products From Epicardial Adipose Tissue of Patients With Type 2 Diabetes Mellitus Induce Cardiomyocyte Dysfunction Ahajournals: Source
J. Pharmacogn Article: Hksobf_2015_V46N2_167
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BMC Cancer. Activins and their related proteins in colon carcinogenesis: insights from early and advanced azoxymethane rat models of colon cancer. pubmed:27835986
Basic Clin Pharmacol Toxicol. Magnolol Attenuates Concanavalin A-induced Hepatic Fibrosis, Inhibits CD4+ T Helper 17 (Th17) Cell Differentiation and Suppresses Hepatic Stellate Cell Activation: Blockade of Smad3/Smad4 Signalling. pubmed:28032440
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Current Analytical Chemistry Single Wall Carbon Nanotube and Magnetic Bead Based Electrochemical Immunosensor for Sensitive Detection of Salivary Secretory Immunoglobulin A 10.2174:2211556006666170525161225
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Journal of Geriatric Oncology Serum biomarkers for predicting overall survival and early mortality in older patients with metastatic solid tumors Pubmed: 30952517
clinica chimica acta The performances of serum activins and follistatin in the diagnosis of ectopic pregnancy: A prospective case-control study Pubmed: 31647905
hindawi The Association between the Activin A Serum Level and Carotid Intima-Media Thickness in Chronic Kidney Disease Patients
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