Drug Res (Stuttg) 2024; 74(07): 335-346
DOI: 10.1055/a-2345-5396
Original Article

Cerebroprotective Potential of Andrographolide Nanoparticles: In silico and In vivo Investigations

Lakshmi Charitha Rudrala
1   Department of Pharmacology, SKU College of Pharmaceutical Sciences, S. K. University, Anantapur, India
,
Ranadheer Reddy Challa
2   Department of Formulations and Development, Quotient Sciences, Garnet Valley, PA, USA
,
Sibbala Subramanyam
3   Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan’s Foundation for Science, Technology & Research (Deemed to be University), Guntur, India
,
Sampath Ayyappa Gouru
4   Aura Biosciences Inc., Boston, USA
,
Gagandeep Singh
5   Section of Microbiology, Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, India
,
N.V. L. Sirisha Mulukuri
6   Department of Pharmacognosy, Nitte College of Pharmaceutical Sciences, Bangalore, India
,
Praveen Kumar Pasala
7   Department of Pharmacology, Raghavendra Institute of Pharmaceutical Education and Research, JNTUA, Anantapur, India
,
Prasanth Sree Naga Bala Krishna Dintakurthi
8   School of Pharmacy & Technology Management, SVKM’s Narsee Monjee Institute of Management Studies (NMIMS), Hyderabad, India
,
Somasekhar Gajula
1   Department of Pharmacology, SKU College of Pharmaceutical Sciences, S. K. University, Anantapur, India
,
Mithun Rudrapal
3   Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan’s Foundation for Science, Technology & Research (Deemed to be University), Guntur, India
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Abstract

Ischemic stroke remains the leading cause of death and disability, while the main mechanisms of dominant neurological damage in stroke contain oxidative stress and inflammation. Docking studies revealed a binding energy of − 6.1 kcal/mol for AG, while the co-crystallized ligand (CCl) exhibited a binding energy of − 7.3 kcal/mol with NOS. AG demonstrated favourable hydrogen bond interactions with amino acids ASN A:354 and ARG A:388 and hydrophobic interactions with GLU A:377. Molecular dynamics simulations throughout 100 ns indicated a binding affinity of − 27.65±2.88 kcal/mol for AG, compared to − 18.01±4.02 kcal/mol for CCl. These findings suggest that AG possesses a superior binding affinity for NOS compared to CCl, thus complementing the stability of NOS at the docked site.AG has limited applications owing to its low bioavailability, poor water solubility, and high chemical and metabolic instability.The fabrication method was employed in the preparation of AGNP, SEM analysis confirmed spherical shape with size in 19.4±5 nm and investigated the neuroprotective effect in cerebral stroke rats induced by 30 min of carotid artery occlusion followed by 4 hr reperfusion, evaluated by infarction size, ROS/RNS via GSH, MPO, NO estimationand AchE activity, and monitoring EEG function. Cortex and hippocampal histology were compared between groups. AGNP treatment significantly decreased Infarction size and increased GSH levels (p<0.01**), decreased MPO (p<0.01**), NO (p<0.01**), AchE (p<0.01**), restored to normal EEG amplitude, minimizing unsynchronized polyspikes and histological data revealed that increased pyramidal cell layer thickness and decreased apoptotic neurons in hippocampus, cortex appeared normal neurons with central large vesicular nuclei, containing one or more nucleoli in compared to AG treatment. Based on brain biochemical, histopathology reports AGNP exhibited significant cerebroprotective activity compared to AG on ischemic rats.



Publikationsverlauf

Eingereicht: 02. Januar 2024

Angenommen: 02. April 2024

Artikel online veröffentlicht:
11. Juli 2024

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