Publications by authors named "Bhardwaj R"

Growing atmospheric CO concentrations are a global concern and a primary factor contributing to global warming. Development of integrated CO capture and conversion protocols is necessary to mitigate this alarming challenge. Though CO hydrogenation to produce formic acid and methanol has seen many strides in the past decades, most studies utilize pure CO for this transformation.

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Alzheimer's disease is a complicated, multifaceted, neurodegenerative illness that places an increasing strain on healthcare systems. Due to increasing malfunction and death of nerve cells, the person suffering from Alzheimer's disease (AD) slowly and steadily loses their memories, cognitive functions and even their personality. Although medications may temporarily enhance memory, there are currently no permanent therapies that can halt or cure this irreversible neurodegenerative process.

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Background: Chronic smoking is an established risk factor for oral cancer (OC). The role of tobacco in oral squamous cell cancer (OSCC) emphasizes the need for non-invasive diagnostic approaches to identify early molecular alterations and improve patient outcomes. Salivary exosomes, which contain proteins, lipids, and nucleic acids, accessible and rich in biological content, making them interesting candidate biomarkers.

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: Human fetal liver hematopoietic stem cells have proven potential as therapeutics but lack extensive research due to their limited supply. Even expanded fetal liver hematopoietic stem cells enter senescence or lose their self-renewal capacity after a few days in culture. The present study aimed to obtain a homogeneous and persistent supply of hematopoietic stem cells from the fetal liver by establishing a cell line through immortalization of cells by enhancing telomerase activity.

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Article Synopsis
  • The study identifies 169,197 fusion transcripts in various plant species, suggesting that these transcripts contribute to physiological processes beyond cancer, including stress responses and morphological traits.
  • By analyzing various datasets, the researchers confirm the active translation of some fusion transcripts and explore how DNA sequence organization and chromatin structure influence their formation.
  • The findings indicate that a large number of fusion events result from alternative splicing and that genes located near each other are more likely to fuse, with many fusion transcripts not being translated into proteins.
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Recent advancements in nanogel formulations have significantly enhanced the therapeutic efficacy of herbal medicines in wound healing applications. This systematic review explores the integration of various herbal extracts and bioactive compounds into nano gels, highlighting their improved properties and wound healing application. Key formulations include tobacco stem nanogels demonstrating stability and rapid wound contraction, neem and silk fibroin hydrogels accelerating wound regeneration, and curcumin nanosuspension-based nanogels significantly enhancing wound contraction rates.

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  • The study examined how the geographical distribution of Juniperus communis leaves affects the yield, chemical composition, and biological activities of their essential oils (EOs), focusing on elevations between 1325-3200 m.
  • Differences in EO yield were noted, with the highest yield (0.48%) from samples collected at Thatri Dhaar, and significant variations in phenolic and flavonoid contents across locations.
  • The research found strong antioxidant activity and the ability of EOs to inhibit specific enzymes and bacteria, suggesting their potential for pharmaceutical applications, while also employing statistical analyses to explore the relationships between metabolites and environmental factors.
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Zavegepant is a calcitonin gene-related peptide receptor antagonist for acute migraine treatment. This Phase I, open-label, fixed-sequence study evaluated the effects of itraconazole (a strong cytochrome P450 3A4 [CYP3A4] and P-glycoprotein [P-gp] inhibitor) on the pharmacokinetics of intranasal/oral zavegepant and the effects of rifampin (a strong inducer of CYP3A4 and P-gp; and an inhibitor of organic anion transporting polypeptide 1B3 [OATP1B3]) on oral zavegepant in healthy participants. In the intranasal/oral zavegepant-itraconazole cohort, participants received a single 10-mg dose of zavegepant nasal spray on Day 1, followed by oral zavegepant (50 mg) on Day 3.

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Lablab bean (Lablab purpureus L.), known for its higher protein content provides a promising alternative to reduce reliance on animal-based proteins and support sustainable agriculture. Nowadays, traditional methods for nutritional profiling have been outperformed by Convolutional Neural Networks (CNNs) integrated with Near-Infrared Reflectance Spectroscopy (NIRS).

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Chromium (Cr) toxicity impairs essential morphological and metabolic activities in plants. The present investigation was carried out to evaluate the beneficial role of plant growth promoting rhizobacterial strains namely Pseudomonas aeruginosa (M1), Burkholderia gladioli (M2) and earthworms (Eisenia fetida) in alleviating Cr toxicity in 10 days old Brassica juncea L. The findings delineated that addition of earthworms and PGPR restored growth, boosted Cr uptake and showed upregulation of metal transporter genes (SULTR 1-4).

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The human epidermal growth factor receptor 2 (HER2) is closely associated with the development and progression of breast cancer, making it a critical target for therapeutic interventions. In this study, we employed a comprehensive computational drug discovery strategy to identify potential inhibitors of HER2. Our approach combined virtual screening, re-docking procedures, molecular dynamics (MD) simulations, and free energy landscape analysis using principal component analysis (PCA).

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Objective: To compare the rate and extent of absorption of zavegepant 10 mg (therapeutic dose) or 20 mg (supratherapeutic dose) nasal spray during a migraine attack versus non-migraine period, assess safety, and explore efficacy and the relationship between zavegepant concentration and therapeutic response.

Background: Physiologic changes occurring during a migraine attack could affect the pharmacokinetics of treatments for migraine.

Methods: This was a Phase 1, multicenter, open-label, randomized, single-dose, two-period, fixed-sequence, comparative bioavailability study.

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Article Synopsis
  • The study aimed to investigate how the intranasal drug zavegepant affects the pharmacokinetics of the oral contraceptive ethinyl estradiol and levonorgestrel (EE-LNG) when taken together.
  • It involved healthy females aged 18-45, who received a single dose of EE-LNG followed by multiple doses of zavegepant, with blood samples collected to analyze drug concentrations.
  • Results indicated minor and statistically insignificant changes in the levels of EE and LNG when zavegepant was co-administered, with some common side effects noted such as dysgeusia and throat irritation.
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  • Zavegepant (ZAVZPRET™) is a selective medication for treating acute migraines in adults, targeting specific receptors related to migraine pathways.
  • A comprehensive analysis of its pharmacokinetics determined how zavegepant is absorbed, distributed, and eliminated from the body, utilizing data from multiple clinical trials.
  • The findings revealed that zavegepant has low bioavailability rates when taken intranasally (5.1%) or orally (0.65%), with factors like age and sex not significantly affecting its pharmacokinetics, but certain conditions (like moderate liver impairment) could impact its clearance.
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Mungbean plays a significant role in global food and nutritional security. However, the recent drastic rise in atmospheric temperature has posed an imminent threat to mungbean cultivation. Therefore, this study investigates the growth and physiological changes of 87 mungbean germplasm lines under heat stress.

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The landscapes of observed and predicted three-dimensional crystal packing arrangements of small-molecule drug candidates can be complex. The possible appearance of a more thermodynamically stable solid form during drug development has led to the digital workflow of informatics-based risk assessments, named a Solid Form Health Check. Herein, we describe the use of a combined approach consisting of experiments, informatics together with energetic calculations in analysis of four competing polymorphs of PF-06282999, a myeloperoxidase (MPO) inhibitor with conformational flexibility and multiple plausible hydrogen bond networks.

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  • Participants from 22 research groups utilized various methods, including periodic DFT-D methods, machine learning models, and empirical force fields to assess crystal structures generated from standardized sets.
  • The findings indicate that DFT-D methods generally aligned well with experimental results, while one machine learning approach showed significant promise; however, the need for more efficient research methods was emphasized due to resource consumption.
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A seventh blind test of crystal structure prediction was organized by the Cambridge Crystallographic Data Centre featuring seven target systems of varying complexity: a silicon and iodine-containing molecule, a copper coordination complex, a near-rigid molecule, a cocrystal, a polymorphic small agrochemical, a highly flexible polymorphic drug candidate, and a polymorphic morpholine salt. In this first of two parts focusing on structure generation methods, many crystal structure prediction (CSP) methods performed well for the small but flexible agrochemical compound, successfully reproducing the experimentally observed crystal structures, while few groups were successful for the systems of higher complexity. A powder X-ray diffraction (PXRD) assisted exercise demonstrated the use of CSP in successfully determining a crystal structure from a low-quality PXRD pattern.

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  • The study aimed to assess how zavegepant and sumatriptan interact pharmacodynamically (PD) and pharmacokinetically (PK) when administered together in healthy adults to understand their effects on migraine treatment.
  • Zavegepant, a nasal spray for migraine, and sumatriptan, an injectable triptan, have different mechanisms and possible side effects, particularly concerning blood pressure, making their interaction important for possible joint use in patients.
  • The Phase 1 study involved 42 participants and found that blood pressure and safety were generally unchanged when both drugs were taken together, suggesting they may be safe to coadminister.
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  • The studies aimed to evaluate how rimegepant interacts with other drugs metabolized by the CYP3A4 enzyme, with a focus on its potential for drug-drug interactions (DDIs).
  • Rimegepant was tested under various conditions, showing increased effectiveness when combined with the strong CYP3A4 inhibitor itraconazole and a moderate increase with fluconazole, whereas its effectiveness decreased significantly with the CYP3A4 inducer rifampin.
  • Midazolam, another drug tested alongside rimegepant, showed increased concentration and overall exposure, indicating that rimegepant can both influence and be influenced by other medications in individuals taking multiple treatments for migraine.
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  • Zavegepant is a nasal spray approved for acute migraine treatment and functions as a calcitonin gene-related peptide receptor antagonist.
  • A study involving six healthy male participants investigated the absorption and elimination of carbon-14 labeled zavegepant after a 15-minute IV infusion, examining blood, urine, and fecal samples over 192 hours.
  • The results showed a high recovery (96.6%) of administered radioactivity, mainly through feces (84.9%), indicating that zavegepant is primarily eliminated via biliary/fecal routes and has a half-life of 6.8 hours.
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Oral cancer is the leading cause of mortality, with a survival rate of less than 5 years, and is predominantly influenced by tobacco mutagens. Invasive diagnostic methods hinder early detection of oral cancer biomarkers. The present study performed salivary biochemical analysis for early oral cancer screening in tobacco consumers.

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