1,013 results match your criteria: "University of Lucknow.[Affiliation]"

Lutein and Zeaxanthin: Source, Extraction, Stability, Bioactivity, and Functional Food Applications.

Curr Pharm Biotechnol

January 2025

Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan-45142, Saudi Arabia.

Nature has been acknowledged as a fundamental source of diverse bioactive molecules. Among natural carotenoids, lutein, zeaxanthin, and their oxidative metabolites are specifically deposited in the macular region of living organisms. Lutein and zeaxanthin are carotenoids primarily found in green leafy vegetables, eggs, and various fruits.

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Nanotechnology has emerged as a revolutionary domain with diverse applications in medicine, and one of the noteworthy developments is the exploration of bacterial magnetosomes acquired from magnetotactic bacteria (MTB) for therapeutic purposes. The demand for natural nanomaterials in the biomedical field is continuously increasing due to their biocompatibility and eco-friendly nature. MTB produces uniform, well-ordered magnetic nanoparticles inside the magnetosomes, drawing attention due to their unique and remarkable features.

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In this paper, the dielectric behaviour of coconut oil within the frequency range 100 kHz to 30 MHz between temperature 30 °C-50 °C has been observed. The measured values of the dielectric constant and dielectric loss show notable variation with frequency and temperature for pure coconut oil. It is noticed that the dielectric constant (՛) and dielectric loss (՛՛) of coconut oil decreases with increasing temperature.

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Polymer-dispersed liquid crystals (PDLCs) stand at the intersection of polymer science and liquid crystal technology, offering a unique blend of optical versatility and mechanical durability. These composite materials are composed of droplets of liquid crystals interspersed in a matrix of polymeric materials, harnessing the optical properties of liquid crystals while benefiting from the structural integrity of polymers. The responsiveness of LCs combined with the mechanical rigidity of polymers make polymer/LC composites-where the polymer network or matrix is used to stabilize and modify the LC phase-extremely important for scientists developing novel adaptive optical devices.

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Combined effects of climate stressors and soil arsenic contamination on metabolic profiles and productivity of rice (Oryza sativa L.).

Sci Total Environ

January 2025

Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.

Rice productivity and quality are increasingly at risk in arsenic (As) affected areas, challenge that is expected to worsen under changing climatic conditions. Free-Air Concentration Enrichment experiments revealed that eCO, eO, and eTemp, whether acting individually or in combination with low and high As irrigation, significantly impact rice yield and grain quality. Elevated CO₂ significantly increased shoot biomass, with minimal impact on root biomass, except under low As irrigation conditions.

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Herbicide paraquat dichloride, a potent redox agent found its way to natural water bodies and influences their health; however, its impact on the reproductive health of fish is potentially less studied and requires clear investigation. This study was conducted to elucidate its effect on the gonadal health of female fish, Channa punctatus over 60 days. The 96-h LC of test herbicide was calculated as 0.

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Enantiomeric analysis of chiral drugs is very significant, as their enantiomers display different pharmacological or toxicological behavior towards living systems. Among these drugs, β-blockers are available as racemates, where their enantiomers display different pharmacological effects. Herein, we report enantioselective separation of two β-blockers, namely, atenolol and sotalol, using a derivatization approach.

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Objective: To assess the association of dietary fatty acids with asthma in Indian school children.

Methods: Children aged 6-16 years were enrolled from randomly selected urban schools in 10 cities. The International Study on Asthma and Allergies in Childhood Phase III Questionnaire was used to assess the prevalence of asthma.

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Rhodium(III) catalysis has been used for C-H activation of -nitrosoanilines with substituted allyl alcohols. This method provides an efficient synthesis of the functional -nitroso β-aryl aldehydes and ketones with low catalyst loading, high functional group tolerance, and superior reactivity of allyl alcohols toward -nitrosoanilines. We demonstrated that reaction also proceeds through the one-pot synthesis of -nitrosoaniline, followed by subsequent, C-H activation.

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Beyond Hunger: A Connection Between Diet and Gonadal Development of a Ladybird Beetle.

J Exp Zool A Ecol Integr Physiol

December 2024

Ladybird Research Laboratory, Department of Zoology, University of Lucknow, Lucknow, Uttar Pradesh, India.

Food availability shapes morphology, physiology, growth, reproduction, and overall fitness of insects. Countless research in coccinellids reported the effect of diet in terms of quality and quantity on reproductive output. But fewer studies have reported the direct effects of food on the gonadal development in both sexes.

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Animals use photic cues to time their daily and seasonal activity. The role of photoperiod has been much investigated in seasonal responses, but the role of light intensity is less understood in passerine finches. We investigated if and how daytime light intensity influences photoinduced migratory phenologies and hypothalamic mRNA expressions in a Palearctic-Indian migratory finch, redheaded bunting (Emberiza bruniceps).

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Objectives: (commonly known as kokum) has been employed in Ayurvedic and Siddha medicine since ancient times. Every part of the plant has its own set of advantages and applications. Therefore, the present evaluates the phytochemical composition and biological activity spectrum of the ethanolic fruit extract of

Methods: Ethanolic extract of fruits of (GIFEE) underwent TPC and TFC quantification, with bioactive components characterized GC-MS and HPLC.

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Background: Endoglin/CD105-microvessel density (CD105-MVD) is identified as one of the most potential methods for semi-quantification of angiogenesis in human cancer tissues. Present study aimed to examine the diagnosticand prognostic value of CD105-MVD in two clinically distinct subtypes of urothelial carcinoma of bladder (UCB) namely non-muscle invasive bladder cancer (NMIBC) and muscle invasive bladder cancer (MIBC) patients.

Methods: Message expression of endoglin was analysed by real-time quantitative polymerase chain reaction (RT-qPCR) and MVD measurement was done by immunohistochemical staining in 90 UCB [NMIBC: 60; MIBC: 30] patients.

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Magnetic nanoparticle-catalysed synthesis of quinoline derivatives: A green and sustainable method.

Heliyon

December 2024

Department of Chemistry, University of Zululand, Corner Guldengracht &, 2 Cent Cir, Road, Richards Bay, 3900, South Africa.

Greener and sustainable synthetic strategies have been evolving as the demanding domain of organic synthesis during the last decade. Green synthesis involves the development of method that decrease or eliminate the use of hazardous chemicals, and make use of renewable or recyclable resources. By incorporating the fundamentals and methodologies of green synthesis, organic chemists have the ability to develop valuable organic molecular frameworks which also demonstrate a strong commitment to environmental sustainability.

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Introduction: The Gonds tribe, indigenous to the Sonbhadra region in Uttar Pradesh, India, faces unique challenges and disparities in women's health, particularly in the domains of menstrual health, pregnancy, and postpregnancy care. This study aims to shed light on the demographic patterns of these critical aspects of women's health among the Gonds tribe, providing valuable insights for healthcare interventions and policy development.

Aim: This study explores the demographic and socioeconomic factors affecting Gond women's health, focusing on menstrual hygiene and life stages before, during, and after pregnancy.

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Our understanding of identifying and monitoring surge-type glacier distribution patterns, fluctuations, periodicities, and occurrence mechanism under the changing climate is challenging and scarce due to small numbers, limitations on the spatiotemporal coverage of remote sensing observations, and insufficient field-based glaciological data from the High Mountain Asia. The surging glaciers have caused major hazards, and their movement can destroy peripheral and downstream areas like roads, connecting bridges, villages, and hydropower stations and trigger a glacial lake outburst flood or form a dammed (moraine or ice) lake in High Mountain Asia (HMA) in the recent past. Many glaciers have experienced a mass loss and retreat due to ongoing climate change in HMA in recent decades, whereas studies conducted in the Karakorum, Pamir, Tien Shan, and Kunlun Shan regions have reported the surging of the glaciers.

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Do more food choices lead to bad decisions? A case study in predaceous ladybird beetle, .

Bull Entomol Res

December 2024

Ladybird Research Laboratory, Department of Zoology, University of Lucknow, Uttar Pradesh, Lucknow 226007, India.

Understanding why animals choose one food over another is one of the key questions underlying the fields of behaviour ecology. This study aims to test if ladybird beetle, Mulsant (Coleoptera: Coccinellidae) can forage selectively for nutrients in order to redress specific nutritional imbalances to maximise their fitness. We hypothesised that the presence of more food choices leads to bad decisions in terms of their food selection which ultimately negatively affects the mating and reproductive parameters of .

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Introduction: Dental caries, caused by oral microbial pathogens, are a global health concern, further exacerbated by the presence of methicillin-resistant (MRSA). Bioactive proteins and peptides (BAPs) exhibit potent antimicrobial properties, targeting multiple cellular mechanisms within pathogens, reducing the likelihood of resistance development. Given the antimicrobial potential of BAPs, this study aimed to compare the efficacy of BAPs extracted from cultivated (, PoC) and wild (, PoW) mushrooms against pathogens responsible for dental caries.

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The present study explores the effect of differential food treatment on the migratory phenology of redheaded bunting (). Birds were divided into four groups ( = 10 each) on the basis of the food provided. Group I was fed with seeds of (kakuni), while group II was provided with protein-rich diet (combination of; 3 parts egg white and 1 part kakuni seeds).

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Article Synopsis
  • Dactylogyrus pharyngocephalus is a monogenean parasite originally identified in 1970 from the tank goby in South India, and it has not been observed since.
  • Recent specimens were collected in northeast India and examined using both morphological and molecular techniques.
  • The study provides new descriptions of D. pharyngocephalus, including its ventral bar, and highlights that its genetic sequences differ from existing records in GenBank.
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In the present work, a comparative study on eco-friendly synthesis of zinc oxide (ZnO) sample 1 and sample 2 with 3.17 and 4.17 M NaOH, respectively, is reported.

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The current study focuses on synthesis and characterization of carbonyl functionalized unsymmetrical diorganotellurium(iv) dichlorides (1-5), dibromide (6), and their characterization by elemental analysis, H, C{H}, and Te NMR spectroscopy. In addition to this, compounds 1, 4 and 5 were further confirmed single-crystal X-ray studies. Reduction of all the dichlorides with NaSO affords labile tellurides, which decompose quickly even at room temperature into the more stable symmetric ditellurides, ArTe.

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Poly(ADP-ribose) polymerase1 (PARP1) and PARP inhibitors: New frontiers in cervical cancer.

Biochem Biophys Res Commun

December 2024

Molecular & Human Genetics Lab, Department of Zoology, University of Lucknow, Lucknow, 226007, U.P, India; A Laboratory of Advanced Molecular Genetics & Infectious Diseases, ONGC-CAS, University of Lucknow, Lucknow, 226007, U.P, India. Electronic address:

Cervical cancer affects more than half a million women and treatment options for advanced disease and recurrence is limited. Poly (ADP-ribose) polymerase1 (PARP1) is a critical nuclear protein regulating several components and functions of cellular machinery, including cancer. PARP1 expression and activity plays a crucial dynamics in the tumor microenvironment.

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Background: Regeneration is a fascinating phenomenon that has intrigued scientists for a long time. Cheilomenes sexmaculata (Fabricius), a zig-zag ladybird beetle, possesses a high capacity for limb regeneration. The molecular mechanics of the zig-zag ladybird beetle are under-explored.

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