NARAYANAN J

Dr. NARAYANAN J

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Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 September 2024 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
AAAfaf Aldahish
Afaf Aldahish
NSNirenjen Shanmugasundaram
Nirenjen Shanmugasundaram
RVRajalakshimi Vasudevan
Rajalakshimi Vasudevan
TATaha Alqahtani
Taha Alqahtani
SASaud Alqahtani
Saud Alqahtani
NJNARAYANAN J
NARAYANAN J
Background: Non-healing diabetic wounds represent a significant clinical challenge globally, necessitating innovative approaches in drug delivery to enhance wound healing. Understanding the pathogenesis of these wounds is crucial for developing effective treatments. Bioactive dressings and polymeric nanofibers have emerged as promising modalities, with silk biomaterials gaining attention for their unique properties in diabetic wound healing. Purpose of Review: The purpose of this review is to examine the challenges and innovations in treating non-healing diabetic wounds, emphasizing the global burden and the need for effective solutions. This review explores the complex mechanisms of wound healing in diabetes and evaluates the therapeutic potential of bioactive dressings and polymeric nanofibers. Special focus is given to the application of silk biomaterials, particularly silk fibroin, for wound healing, detailing their properties, mechanisms, and clinical translation. This review also describes various nanofiber fabrication methods, especially electrospinning technology, and presents existing evidence on the effectiveness of electrospun silk fibroin formulations. Recent Findings: Recent advancements highlight the potential of silk biomaterials in diabetic wound healing, owing to their biocompatibility, mechanical strength, and controlled drug release properties. Electrospun silk fibroin-based formulations have shown promising results in preclinical and clinical studies, demonstrating accelerated wound closure and tissue regeneration. Summary: Non-healing diabetic wounds present a significant healthcare burden globally, necessitating innovative therapeutic strategies. Bioactive dressings and polymeric nanofibers, particularly silk-based formulations fabricated through electrospinning, offer promising avenues for enhancing diabetic wound healing. Further research is warranted to optimize formulation parameters and validate efficacy in larger clinical trials.

3 April 2024 in Biomedicines
Verified
Journal Article
Open access
PDF file
PDPriya Deivasigamani
Priya Deivasigamani
ERESTHER RUBAVATHY
ESTHER RUBAVATHY
NJNARAYANAN J
NARAYANAN J
VSVenkatesan Saravanan
Venkatesan Saravanan
RTRamasamy Thilagavathi
Ramasamy Thilagavathi
JAJesu Arockiaraj
Jesu Arockiaraj
A series of novel 1,5-diaryl pyrazole derivatives targeting the COX enzyme were designed by combined ligand and structure-based approach. The designed molecules were then further subjected to ADMET and molecular docking studies. Out of 34 designed compounds, the top-10 molecules from the computation studies were synthesized, characterized, and evaluated for COX-2 inhibition and anti-cancer activity. Initially, the target compounds were screened for the protein denaturation assay. The results of the top-five molecules T2, T3, T5, T6, and T9 were further subjected to in vitro COX-2 enzymatic assay and anti-cancer activity. As far as COX-2 inhibitory activity is considered, two compounds, T3 and T5, exhibited the half maximum inhibitory concentration (IC50) at 0.781 µM and 0.781 µM respectively. Further, the two compounds T3 and T5, when evaluated for COX-1 inhibition, exhibited excellent inhibitory activity with T3 IC50 of 4.655μM and T5 with IC50 of 5.596 μM. The compound T5 showed more significant human COX-2 inhibition, with a selectivity index of 7.16, when compared with T3, which had a selectivity index of 5.96. Further, in vitro anti-cancer activity was screened against two cancer cell lines in which compounds T2 and T3 were active against A549 cell lines and T6 was active against the HepG2 cell line. Stronger binding energy was found by comparing MM-PBSA simulations with molecular docking, which suggests that compounds T3 and T5 have a better possibility of being effective compounds, in which T5 showed higher binding affinity. The results suggest that these compounds have the potential to develop effective COX-2 inhibitors as anti-cancer agents.

7 October 2025 in Biochemistry and Biophysics Reports
Verified
Journal Article
Open access
MAMonisha Anandan
Monisha Anandan
NJNARAYANAN J
NARAYANAN J
Rheumatoid arthritis (RA) is a long-term autoimmune disease. It causes persistent joint inflammation, aberrant tissue growth, and progressive joint deterioration. T cells have a key role in the onset of RA. They identify and trigger other immune cells, and produce inflammatory signals such as interleukin-6 (IL-6), interleukin-17 (IL-17), and tumor necrosis factor-α (TNF-α). Prolonged inflammation and tissue damage are caused by an imbalance between regulatory T cells (Tregs) and pro-inflammatory T helper 17 (Th17) cells. Additionally, the condition is exacerbated by uncontrolled cytokine networks and autoantibody formation. This study highlights the significance of biomarkers, cytokine signaling, and the imbalance of T cell subsets in RA for treatment. Along with updates from clinical trials, we also discuss T cell-focused therapeutics, PD-1/PD-L1 regulation, and Treg adoptive therapy. Finally, we address significant issues and RA's future prospects.

24 May 2024 in Future Science OA
Verified
Journal Article
Open access
ARAakash Ramanishankar
Aakash Ramanishankar
ASAnkul Singh S
Ankul Singh S
RBRukaiah F Begum
Rukaiah F Begum
NJNARAYANAN J
NARAYANAN J
ANAfreen Nayeem
Afreen Nayeem
NSNirenjen Shanmugasundaram
Nirenjen Shanmugasundaram
Aim: Photobiomodulation involves the use of low-level light therapy or near-infrared light therapy found to be useful in the treatment of a wide range of neurological diseases. Objective: The aim i... Plain language summary Alzheimer's disease (AD) is an incurable progressive neurodegenerative disease clinically manifested with a decline in cognitive function. To ensure that the consensus statem...

15 September 2024 in Cureus
Verified
Journal Article
Open access
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AJAfrarahamed Jahabardeen
Afrarahamed Jahabardeen
NSNirenjen S
Nirenjen S
NJNARAYANAN J
NARAYANAN J
CVChitra V
Chitra V
Gene variations significantly impact the development of neurodegenerative disorders, particularly Alzheimer's disease (AD) and Parkinson's disease (PD). In AD, which is marked by amyloid-beta (Aβ) plaques and tau tangles, key genetic contributors such as amyloid beta precursor protein (APP), presenilin (PSEN1), and presenilin 2 (PSEN2) play a significant role in early-onset familial AD due to their influence on Aβ accumulation. PD, marked by dopaminergic neuron degeneration and Lewy body formation, is associated with mutations in the SNCA gene encoding alpha-synuclein (α-Syn), as well as other genes such as leucine-rich repeat kinase 2 (LRRK2), Parkin RBR E3 ubiquitin-protein ligase (PARK2), PTEN-induced kinase 1 (PINK1), and protein deglycase (DJ-1). Genome-wide association studies have identified genetic variants in apolipoprotein (APOE) and SNCA that increase disease risk. Alpha-synuclein, a protein involved in synaptic function, misfolds and aggregates into toxic forms in neurodegenerative diseases. Aggregates disrupt neuronal functions and propagate in a prion-like manner, with SNCA mutations exacerbating α-Syn aggregation and disease severity. Alpha-synuclein levels in skin, serum, cerebrospinal fluid, and plasma distinguish PD patients from healthy patients, demonstrating biomarker potential for diagnosis and therapeutic strategies. Furthermore, α-Syn’s presence in neural crest-derived tissues from PD patients and melanoma patients suggests shared pathophysiological features. Ongoing research into SNCA and α-Syn is crucial for advancing diagnostics and therapeutics for neurodegenerative diseases.

7 December 2024 in Biochimica et Biophysica Acta (BBA) - General Subjects
Verified
Journal Article
Closed access
SNS. Nirenjen
S. Nirenjen
NJNARAYANAN J
NARAYANAN J