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Abstract Title:

Silymarin encapsulated nanoliquid crystals for improved activity against beta amyloid induced cytotoxicity.

Abstract Source:

Int J Biol Macromol. 2020 Feb 7 ;149:1198-1206. Epub 2020 Feb 7. PMID: 32044368

Abstract Author(s):

Ajit Singh, Ashish Kumar, Rahul K Verma, Rahul Shukla

Article Affiliation:

Ajit Singh

Abstract:

Silymarin (SLY) a natural Aβ aggregation inhibitor, antioxidant and act as neuroprotectant. In the present study, we have prepared nano liquid crystals (NLCs) of negatively charged glycerylmonooleate (GMO) loaded with SLY for enhancing activity against Aβinduced toxicity. SLY-NLCs are characterized for physicochemical parameters such as particle size, zeta potential, and drug-loading. The average particle size, zeta potential and % DL were found≤200 nm, -22 mV, and 8.73% respectively. The amorphous form and entrapment of SLY in NLC were confirmed using DSC and FTIR analysis. The cubosomal SLY-NLCs shape was characterized by SEM and TEM. The cumulative drug release of SLY was ~76% at pH 7.4 (cerebrospinal fluid) from lyophilized SLY-NLC in 48 h. In order to understand the Aβaggregation inhibition due to SLY-NLC ThT (Thioflavin T) kinetic binding assay was also performed. The cell viability assessment of SLY-NLC was performed on SHSY5Y cell line that showed the highest viability in comparison to free SLY treated groups. ROS and apoptosis activity study SLY-NLCs reduced the Aβinduced free radical with cell death. Cellular uptake study proved enhanced intracellular internalization of FITC tagged NLCs in 24 h. SLY-NLCs can offer great prospects in the field of drug delivery for neuroprotection.

Study Type : In Vitro Study

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