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Valproic acid potentiates curcumin-mediated neuroprotection in lipopolysaccharide induced rats

Overview of attention for article published in Frontiers in Cellular Neuroscience, October 2014
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Title
Valproic acid potentiates curcumin-mediated neuroprotection in lipopolysaccharide induced rats
Published in
Frontiers in Cellular Neuroscience, October 2014
DOI 10.3389/fncel.2014.00337
Pubmed ID
Authors

Amira Zaky, Mariam Mahmoud, Doaa Awad, Bassma M. El Sabaa, Kamal M. Kandeel, Ahmad R. Bassiouny

Abstract

The etiology of neuroinflammation is complex and comprises multifactorial, involving both genetic and environmental factors during which diverse genetic and epigenetic modulations are implicated. Curcumin (Cur) and valproic acid (VPA), histone deacetylase 1 inhibitor, have neuroprotective effects. The present study was designed with an aim to investigate the ability of co-treatment of both compounds (Cur or VPA, 200 mg/kg) for 4 weeks to augment neuroprotection and enhance brain recovery from intra-peritoneal injection of (250 μg/kg) lipopolysaccharide-stimulated neuroinflammatory condition on rat brain cortex. Cortex activation and the effects of combined treatment and production of proinflammatory mediators, cyclooxygenase-2 (COX-2), APE1, and nitric oxide/inducible nitric oxide synthase (iNOS) were investigated. Neuroinflammation development was assessed by histological analyses and by investigating associated indices [β-secretase (BACE1), amyloid protein precursor (APP), presenilin (PSEN-1), and PSEN-2)]. Furthermore we measured the expression profile of lethal-7 (let-7) miRNAs members a, b, c, e, and f in all groups, a highly abundant regulator of gene expression in the CNS. Protein and mRNA levels of neuroinflammation markers COX-2, BACE1, APP, and iNOS were also attenuated by combined therapy. On the other hand, assessment of the indicated five let-7 members, showed distinct expression profile pattern in the different groups. Let-7 a, b, and c disappeared in the induced group, an effect that was partially suppressed by co-addition of either Cur or VPA. These data suggest that the combined treatment induced significantly the expression of the five members when compared to rats treated with Cur or VPA only as well as to self-recovery group, which indicates a possible benefit from the synergistic effect of Cur-VPA combination as therapeutic agents for neuroinflammation and its associated disorders. The mechanism elucidated here highlights the particular drug-induced expression profile of let-7 family as new targets for future pharmacological development.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 32 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 32 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 9 28%
Student > Master 3 9%
Student > Doctoral Student 3 9%
Student > Bachelor 2 6%
Student > Postgraduate 2 6%
Other 6 19%
Unknown 7 22%
Readers by discipline Count As %
Agricultural and Biological Sciences 7 22%
Neuroscience 5 16%
Medicine and Dentistry 4 13%
Biochemistry, Genetics and Molecular Biology 3 9%
Nursing and Health Professions 1 3%
Other 5 16%
Unknown 7 22%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 May 2015.
All research outputs
#14,203,791
of 22,769,322 outputs
Outputs from Frontiers in Cellular Neuroscience
#2,194
of 4,230 outputs
Outputs of similar age
#134,665
of 259,770 outputs
Outputs of similar age from Frontiers in Cellular Neuroscience
#31
of 89 outputs
Altmetric has tracked 22,769,322 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,230 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.2. This one is in the 44th percentile – i.e., 44% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 259,770 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 45th percentile – i.e., 45% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 89 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 61% of its contemporaries.