Assessment of TNF-alpha and BDNF
hananagm
Abstract
Abstract
Background: Cerebral palsy (CP) is the most common motor disability in children, which is instigated by damage to the developing brain that affects the ability to control the muscles. The main types of CP are spastic CP, dyskinesia CP and mixed CP. The aim of this work was to estimate the concentrations of complete blood count (CBC), erythrocytic sedimentation rate (ESR), C-reactive protein (CRP), brain-derived neurotrophic factor (BDNF), and tumor necrosis factor-α (TNF-α) in children with CP compared to the control group.
Methods: A total of 75 Egyptian children were enrolled in this study, 45 had CP and 30 were controls. CBC, ESR, CRP, BDNF, and TNF-α were assessed.
Results: The ESR, CRP and TNF-α levels showed statistically significant increases in cases compared with controls. While the neutrophil/lymphocyte ratio and the BDNF levels were significantly lower in CP compared with the controls. When comparing the different groups of CP with each other; there were no significant differences. Regarding the correlation of BDNF and different studied parameters, our study showed a positive correlation between BDNF and TNF levels only within the group with spastic CP.
Conclusions: BDNF may be considered as a biomarker or treatment target for CP to avoid further complications as still there is insufficient progress in the prediction, early diagnosis, treatment, and prevention of CP. Furthermore, searching for novel strategies to increase BDNF levels may open a new opportunity for the treatment of CP.
Steps
Assessment of TNF-alpha and BDNF
Catalog No ab181421 (www.abcam.com/ab181421 , BDNF ab212166 www.abcam.com/ab212166)
First separate the serum
store samples in low degree properly -10 c
Antibody Cocktail
300 ul of l HumanCapture Antibody + 300 ul of Detector Antibody + with 2.4 mL Antibody Diluent
standard curve
serially diluted standards immediately
fresh set of positive controls for every use.
some was repeated in the well to check the accuracy
some was repeated in the well to check the accuracy
ElISA Steps
Add 50 μL of all sample or standard to appropriate wells.
Add 50 μL of the Antibody Cocktail to each well.
The plate was sealed and incubated for 1 hour at room temperature on a plate shaker set to 400 rpm
Wash each well with 3 x 350 µL Wash Buffer. Wash by aspirating or decanting from wells then dispensing 350 µL 1X Wash Buffer into each well. Complete removal of liquid at each step is essential for good performance. After the last wash invert the plate and blot it against clean paper towels to remove excess liquid
Add 100 µL of TMB Development Solution to each well and incubate for 10 minutes in the dark on a plate shaker set to 400 rpm
ADD 100 ul of stop solution to each well. shake plate on plate shaker for 1 min .
. Read the OD at 450 nm
