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Inhibitory action on the production of advanced glycation end products (AGEs) and suppression of free radicals in vitro by a Sri Lankan polyherbal formulation Nawarathne Kalka

Overview of attention for article published in BMC Complementary Medicine and Therapies, July 2016
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Title
Inhibitory action on the production of advanced glycation end products (AGEs) and suppression of free radicals in vitro by a Sri Lankan polyherbal formulation Nawarathne Kalka
Published in
BMC Complementary Medicine and Therapies, July 2016
DOI 10.1186/s12906-016-1178-x
Pubmed ID
Authors

Chamira Dilanka Fernando, Diyathi Tharindhi Karunaratne, Sachith Dilshan Gunasinghe, M. C. Dilusha Cooray, Prabuddhi Kanchana, Chandani Udawatte, Pathirage Kamal Perera

Abstract

Advanced glycation end products (AGEs) and free radicals are inflammatory mediators and are implicated in many diseases such as diabetes, cancer, rheumatoid arthritis etc. Multi targeted poly herbal drug systems like Nawarathne Kalka (NK) are able to quench the overall effect of these mediators as they contain good combinations of phytochemicals that have least side effects in contrast to modern medicinal drugs. The objectives of this study were to evaluate phytochemical composition, free radical scavenging activity, cytotoxicity and the inhibitory action on the formation of AGEs by aqueous extract of NK. Total phenolic content (TPC) and total flavonoid content (TFC) were determined using Folin ciocalteu method and aluminium chloride assay respectively. Free radical scavenging activity was assessed by DPPH radical scavenging assay (DRSA), phosphomolybdenum reduction antioxidant assay (PRAA) and nitric oxide (NO) scavenging assay. Brine Shrimp Lethality (BSL) bioassay was performed as preliminary screening for cytotoxic activity. Inhibitory action on AGE formation was evaluated using fructose mediated glycation of bovine serum albumin using fluorescence spectroscopic method. The TPC and TFC were 75.1 ± 3.0 mg/g gallic acid equivalents and 68.7 ± 7.8 mg/g epigallocatechin gallate equivalents. The DRSA yielded EC50 of 19.15 ± 2.24 μg mL(-1) for NK. DRSA of NK extract was greater than butylated hydroxy toluene (EC50 = 96.50 ± 4.51 μg mL(-1)) but lesser than L-ascorbic acid (EC50 = 5.60 ± 0.51 μg mL(-1)). The total antioxidant capacity of NK as evidenced by PRAA was 106.4 ± 8.2 mg/g L-ascorbic acid equivalents. NK showed EC50 value of 99.3 ± 8.4 μg mL(-1) in the NO scavenging assay compared to the standard ascorbic acid (EC50 = 7.3 ± 0.3 μg mL(-1)). The extract indicated moderate cytotoxic activity in the BSL bioassay. The extract showed effective inhibitory action on the formation of AGEs with EC50 values of 116 ± 19 μg mL(-1), 125 ± 35 μg mL(-1) and 84 ± 28 μg mL(-1) in data obtained over three consecutive weeks respectively. Comparatively the reference standard, aminoguanidine at a concentration of 500 μg mL(-1) demonstrated 65 % inhibition on the formation of AGE after one week of sample incubation. The results proved the potential of NK as a free radical scavenger, moderate cytotoxic agent and an inhibitor on the formation of advanced glycation end-products.

X Demographics

X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 43 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 43 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 7 16%
Student > Bachelor 6 14%
Other 4 9%
Student > Doctoral Student 2 5%
Lecturer > Senior Lecturer 2 5%
Other 6 14%
Unknown 16 37%
Readers by discipline Count As %
Medicine and Dentistry 8 19%
Pharmacology, Toxicology and Pharmaceutical Science 5 12%
Biochemistry, Genetics and Molecular Biology 4 9%
Agricultural and Biological Sciences 3 7%
Chemistry 2 5%
Other 4 9%
Unknown 17 40%
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 17 August 2021.
All research outputs
#13,475,442
of 22,880,230 outputs
Outputs from BMC Complementary Medicine and Therapies
#1,512
of 3,637 outputs
Outputs of similar age
#189,871
of 354,871 outputs
Outputs of similar age from BMC Complementary Medicine and Therapies
#44
of 102 outputs
Altmetric has tracked 22,880,230 research outputs across all sources so far. This one is in the 39th percentile – i.e., 39% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,637 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.5. This one has gotten more attention than average, scoring higher than 56% of its peers.
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 354,871 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 44th percentile – i.e., 44% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 102 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 54% of its contemporaries.