Introduction: Tyrosinase, a copper-containing enzyme, is responsible for melanin production, and its overactivity can lead to hyperpigmentation.
Methods: This study aimed to evaluate triazolothiadiazoles (3a-h, 4a-f) and triazolothiadiazines (5a-h) against human and mushroom tyrosinase isozymes.
Results: Several derivatives, such as 3a-3b, 3d, 4c-4f, 5d, and 5e, were identified as potent and selective inhibitors of mushroom tyrosinase, with IC50 values ranging from 1.
The NS3 protein of hepatitis C virus is an appealing target for therapeutic research because of its notable role in hepatitis C virus (HCV) replication and immune evasion. We employed a comprehensive interdisciplinary strategy to discover new inhibitors of the NS3 protein, targeting all major HCV genotypes (1a-6a) and mutant strains, using a combination of a structural-based drug design approach with in vitro and molecular studies. Initially, 14 potential binders were identified from our in-house database of approximately 950 compounds via docking-based screening.
View Article and Find Full Text PDFBackground: Diabetes mellitus (DM) is a chronic metabolic disorder that seeks treatment instead of available mitigative therapy.
Methods: Six (E)-3-(aryl)-1-phenylprop-2-en-1-one chalcones were synthesized and characterized through various spectroscopic techniques. Their anti-diabetic potential was examined through in-vitro (α-glucosidase and α-amylase inhibition assays), in-vivo (alloxan-induced hyperglycemia), and in-silico studies.
Abnormal glucose levels in diabetes mellitus cause chronic complications like neuropathy, nephropathy, retinopathy, cataract, and cardiovascular issues. Aldose reductase (AR), an enzyme in the polyol pathway, is crucial for developing treatments for diabetic complications. To this end, a series of twenty inhibitors based on tryptamine scaffolds were synthesized and assessed for their efficacy in inhibiting AR activity.
View Article and Find Full Text PDFIn this current work, we report on the design, synthesis, cytotoxicity of new compounds, molecular docking studies, and and evaluations of 24 new alicyclic triterpene amide-containing 1-1,2,3-triazole derivatives (, , - and -). All new compounds were characterized by H-, C-, F-NMR, and HR-ESI-MS spectroscopic techniques. X-ray crystallography unambiguously confirmed the exact structure of .
View Article and Find Full Text PDFBioassay-guided isolation of A.J. Scott afforded one new natural product (lupeol butyl ether, ), along with sixteen known metabolites (-) reported from this source for the first time.
View Article and Find Full Text PDFJ Biomol Struct Dyn
May 2025
Seventeen novel polyhydroquinoline based Schiff bases were synthesized in excellent yields through Hantzsch reaction, characterized by means of spectroscopic techniques and finally screened for their tyrosinase inhibitory potential. Among the series, five compounds (IC = 8.93 ± 0.
View Article and Find Full Text PDFThe overexpression of urease is the root cause of peptic ulcers and gastritis. Therefore, introducing new inhibitors against urease is a possible therapeutic approach to overcoming the pathogenesis; for instance, limiting the risk of development of urinary calculi. Moreover, glycation is the leading cause of several complications.
View Article and Find Full Text PDFDiabetes is a multifactorial global health disorder marked by unusually high plasma glucose levels, which can lead to serious consequences including diabetic neuropathy, kidney damage, retinopathy, and cardiovascular disease. One effective therapy approach for reducing hyperglycemia associated with type 2 diabetes is to target α-glucosidase, enzymes that catalyze starch breakdown in the intestine. In the current study, two new (1, 2) and nine known (3-11) compounds were isolated from the rutaceous plant Haplophyllum tuberculatum and characterized by extensive nuclear magnetic resonance spectroscopic techniques and high-resolution electrospray ionization mass spectrometry.
View Article and Find Full Text PDFIn this present work, we describe the syntheses of a new series of 32 1H-indole-based-meldrum linked 1H-1,2,3-triazole derivatives (2-13, 15a-15f, 16a-16f, 17a-17f and 19a, 19b, 20a), which constitute a new class of 1H-1,2,3-triazoles. Compounds 15a-15f, 16a-16f, 17a-17f have been prepared by employing "click" reactions between substituted 1H-indole-based meldrum alkynes (11, 12 and 13) and substituted aromatic azides (14a-14f) in the presence of copper iodide (CuI) and Hünig's base. Then, the synthesis of compounds 19, 20 through decomposition of meldrum moiety.
View Article and Find Full Text PDFFood insecurity, pollution, and malnutrition are some critical issues tackled by the modern world in the recent era. However, edible mushrooms are nutritionally, economically, and biotechnologically valuable groups of macro fungi. Besides being an essential source of edible food, it is also exploited in pharmacological industries as a potential source of anticancer, antioxidant and immunomodulating agents.
View Article and Find Full Text PDFIn the quest for novel therapeutic agents against SARS-CoV-2, the proposed study explores the potential of traditional Omani medicinal plants, focusing on the efficacy of natural ligands against the virus's Spike protein. Among 437 identified medicinal plants across Oman, 47 species that are documented for their traditional use in treating respiratory infections, with 30 species' ligands available were chosen for analysis. Molecular docking was performed using Autodock Vina on these ligands, yielding 406 unique ligands post-duplication removal.
View Article and Find Full Text PDFIntroduction: Prolyl-specific oligopeptidase (POP), one of the brain's highly expressed enzymes, is an important target for the therapy of central nervous system disorders, notably autism spectrum disorder, schizophrenia, Parkinson's, Alzheimer's disease, and dementia.
Method: The current study was designed to investigate 2,4-bis(trifluoromethyl) benzaldehyde- based thiosemicarbazones as POP inhibitors to treat the above-mentioned disorders. A variety of techniques, such as nuclear magnetic resonance (NMR), mass spectrometry (MS), and Fourier-transform infrared spectroscopy (FTIR), were used for the structural confirmation of synthesized compounds.
Curr Top Med Chem
April 2025
Aims: The aim of the current study was to explore the anti-diabetic potential of .
Methods: All the fractions of were evaluated for α-glucosidase inhibition, followed by bioassay-guided isolation which resulted in a new sesquiterpenoid, as a potential α-glucosidase inhibitor.
Results: The preliminary screening showed that all the fractions including -hexane (38.
Introduction: Prolyl oligopeptidase (POP) is a pivotal druggable target implicated in diverse biological processes and linked to the development of various ailments, including neurodegenerative disorders. While conventional peptide-based inhibitors have been a centerpiece, their limitations, such as restricted bioavailability, necessitate exploration of non-peptidic inhibitors for their therapeutic potential.
Method: This study focuses on designing, synthesizing, and assessing morpholine-based hydrazones targeting the catalytic serine residue of POP.
Introduction: The pandemic caused by SARS-CoV-2 significantly impacted human life around the globe. Numerous unexpected modifications of the SARS-CoV-2 genome have resulted in the emergence of new types and have caused great concern globally.
Methods: Inhibitory effects of bioactive phytochemicals derived from natural and synthetic sources are promising for pathogenic viruses.
Carbonic anhydrase II (CA II) is crucial for maintaining homeostasis in several processes, including respiration, lipogenesis, gluconeogenesis, calcification, bone resorption, and electrolyte balance. It is a pivotal druggable target which is implicated in glaucoma, renal, gastric, and pancreatic carcinomas, as well as in malignant brain tumours. Therefore, to identify new CA II (bovine) inhibitors, the current study was designed to synthesize a library of 20 new triazole-linked hydrazones (6a-t).
View Article and Find Full Text PDFDiabetes mellitus has become a major global health burden because of several related consequences, including heart disease, retinopathy, cataracts, metabolic syndrome, collapsed renal function, and blindness. In the recent study, thirty Schiff base derivatives of 1,3-diphenylurea were synthesized and their anti-diabetic activity was evaluated by targeting α-glucosidase. The compounds exhibited an overwhelming inhibitory potential for α-glucosidase with higher potency ranging from 2.
View Article and Find Full Text PDF[This corrects the article DOI: 10.1016/j.heliyon.
View Article and Find Full Text PDFThe single-stranded RNA genome of SARS-CoV-2 encodes several structural and non-structural proteins, among which the papain-like protease (PLpro) is crucial for viral replication and immune evasion and has emerged as a promising therapeutic target. The current study aims to discover new inhibitors of PLpro that can simultaneously disrupt its protease and deubiquitinase activities. Using multiple computational approaches, six compounds (CP1-CP6) were selected from our in-house compounds database, with higher docking scores (-7.
View Article and Find Full Text PDFMyocardial infarction (MI) is considered one of the most common cardiac diseases and major cause of death worldwide. The prevalence of MI and MI-associated mortality have been increasing in recent years due to poor lifestyle habits viz. residency, obesity, stress, and pollution.
View Article and Find Full Text PDFThe study examined the antimicrobial and antioxidant potential of pure Acetyl-11-keto-β-boswellic acid (AKBA), boswellic acid (70%) and AKBA loaded nanoparticles as topical polymeric films. The optimized concentration (0.05 % w/v) of pure AKBA, boswellic acid (BA), and AKBA loaded silver nanoparticles were used to study its impact on film characteristics.
View Article and Find Full Text PDFSirtuin 3 (SIRT3) belongs to the Sirtuin protein family, which consists of NAD-dependent lysine deacylase, involved in the regulation of various cellular activities. Dysregulation of SIRT3 activity has been linked to several types of cancer, including breast cancer. Because of its ability to stimulate adaptive metabolic pathways, it can aid in the survival and proliferation of breast cancer cells.
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