Publications by authors named "R J A Vibhavari"

Article Synopsis
  • Alzheimer's disease (AD) is increasingly being diagnosed in younger individuals, characterized by cognitive decline and neuroinflammation linked to amyloid β (Aβ) accumulation.
  • The study investigates the effects of N-acetyl-L-tryptophan (NAT) on reducing cognitive decline and neuroinflammation in a rat model of AD induced by Aβ 1-42 oligomers.
  • Results showed that NAT treatment improved cognitive performance, reduced inflammatory markers and Tau levels in the brain, and indicated potential neuroprotective benefits, although the precise therapeutic concentration of NAT could not be determined due to method limitations.
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Unlabelled: The aim of our study was to investigate the potential of rutin, catechin, dehydrozingerone, naringenin, and quercetin, both alone and in combination with temozolomide, to inhibit the expression of O6-methylguanine-DNA methyltransferase (MGMT) in glioma cells. MGMT has been shown to be a major cause of temozolomide resistance in glioma. Our study used both in silico and in vitro methods to assess the inhibitory activity of these phytochemicals on MGMT, with the goal of identifying the most effective combination of compounds for reducing temozolomide resistance.

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Coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in late 2019 with severe respiratory failure and organ damage that later appeared as a pandemic disease. Worldwide, people's mental and physical health and socioeconomic have been affected. Currently, with no promising treatment for COVID-19, the existing anti-viral drugs and vaccines are the only hope to boost the host immune system to reduce morbidity and mortality rate.

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Background: Chemotherapy with the oral alkylating agent temozolomide still prevails as a linchpin in the therapeutic regimen of glioblastoma alongside radiotherapy. Because of the impoverished prognosis and sparse chemotherapeutic medicaments associated with glioblastoma, the burgeoning resistance to temozolomide has made the whole condition almost irremediable.

Objective: The present review highlights the possible mechanisms of drug resistance following chemotherapy with temozolomide.

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Exosomes are extracellular vesicles with the diameter ranging from 50 to 100 nm and are found in different body fluids such as blood, cerebrospinal fluid (CSF), urine and saliva. Like in case of various diseases, based on the parent cells, the content of exosomes (protein, mRNA, miRNA, DNA, lipids and metabolites) varies and thus can be utilized as potential biomarker for diagnosis and prognosis of the brain diseases. Furthermore, utilizing the natural potential exosomes to cross the blood-brain barrier and by specifically decorating it with the ligand as per the desired brain sites therapeutics can be delivered to brain parenchyma.

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