85 results match your criteria: "Vels University[Affiliation]"

Introduction: The postural adaptation is very common now a days in school going children, office desk oriented job, computer users and frequent mobile users, and in all major industrial workers. Several studies have documented a high incidence of postural abnormalities in a given population; however, methods of postural measurement were poorly defined. The implication of postural pro software to analyse the postural imbalance of upper body dysfunction is very rare and literature studies says that the kinematic changes in particular segment will produce pain/discomfort and thereby lesser productivity of subjects.

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This research article presents the Quality by Design (QbD)-finalised conditions for a method that uses liquid chromatography-tandem mass spectrometry for the determination of concentration of enzalutamide (ENZ), an atypical anticancer drug, in a drug formulation and in spiked plasma samples. Critical process attributes (CPA) considered to be the influential parameters in separation, identification, and quantification processes by ultrahigh-performance liquid chromatography-electrospray ionisation-tandem mass spectrometry (UHPLC-ESI-MS/MS) were organic content, buffer strength, pH modifier, flow rate, spray voltage, sheath gas, and auxiliary gas that alter critical analytical attributes, such as retention time (R1) and area (R2). These factors were evaluated first in a factorial design (Taguchi orthogonal array design) and then extensively in a central composite design (CCD) to zero-in on the mobile phase for the quantification of ENZ standard drug and along with its internal standard (ENZIS) in spiked plasma samples and in formulation.

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Modulation of the innate immune responses in the striped snakehead murrel, upon experimental infection with live and heat killed .

Open Vet J

June 2017

Centre for Fish Immunology, School of Life Sciences, Vels Institute of Science, Technology and Advanced Studies (VISTAS), VELS University, Chennai - 600117, India.

It is well-known that the innate immune mechanisms in fish serve as the first line of defence against wide variety of pathogens. In most of the situations, innate responses get induced and enhanced after the pathogen invasion. It would be interesting to look into the inducibility of various innate immune mechanisms and the level of enhancement after infection with the pathogen.

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The present study tried for a phyto-synthetic method of producing silver nanoparticles (Ag-NPs) with size controlled as and eco-friendly route that can lead to their advanced production with decorative tranquil morphology. By inducing temperature fluctuation of the reaction mixture from 25 to 80°C the plasmon resonance band raised slowly which had an ultimate effect on size and shape of Ag-NPs as shown by UV-visible spectroscopy and TEM results. The biosynthesized nanoparticles showed good cytotoxic impact against MCF-7, A549 and Hep2 cells compared to normal cell lines.

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Current research trends on iron nanoparticles (FeNPs) are extensively focused because of their unique magnetic and electrical properties mostly applicable in essential medical devices. However, their fungicidal property against plant pathogens is very less known until date. Present study demonstrates a green technique for blending of FeNPs by utilising aqueous extract of neem leaf ( A Juss.

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Aim: To evaluate the anti-nociceptive activity of 7-methoxy coumarin isolated from ethyl acetate fraction of the alcoholic extract of .

Materials And Methods: The shade dried leaves of were extracted with ethyl alcohol and the extract was condensed. This extract was fractionated with n-hexane, ethyl acetate, and n-butanol.

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Synthesis of silver nanoparticles (Ag NPs) for anticancer activities (MCF 7 breast and A549 lung cell lines) of the crude extract of Syzygium aromaticum.

J Photochem Photobiol B

February 2017

UNESCO-UNISA AFNET in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO BOX 392, Pretoria, South Africa; Nanosciences African Network (NANO-AFNET), Materials Research Department, iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, Somerset West, PO BOX 722, Western Cape, South Africa.

In the present report, silver nanoparticles were synthesized using Piper nigrum extract for in vitro cytotoxicity efficacy against MCF-7 and HEP-2 cells. The silver nanoparticles (AgNPs) were formed within 20min and after preliminarily confirmation by UV-Visible spectroscopy (strong peak observed at ~441nm), they were characterized by using FT-IR and HR-TEM. The TEM images show spherical shape of biosynthesized AgNPs with particle size in the range 5-40nm while as compositional analysis were observed by EDAX.

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The ever-increasing problem of pancreatitis due to alcohol abuse demands evaluation of novel drugs of plant origin. This study explores the therapeutic effects of the methanolic extract of Brassica oleraceae (MEBO) on ethanol and cerulein induced pancreatitis in rats. The MEBO was subjected to GC-MS and HPLC analysis.

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Immunostimulatory effect of the aqueous leaf extract of on the specific and nonspecific immune responses of Peters.

Iran J Vet Res

January 2016

Centre for Fish Immunology, School of Life Sciences, Vels University, Pallavaram, Chennai-600117, India.

Plant derived immunostimulants are a promising alternative to chemotherapeutics and also perhaps vaccines. In the present study, we examined the immunostimulating properties of aqueous leaf extract of , an Indian traditional medicinal herb, on neutrophil activation and antibody response of (Peters). Serial ten-fold diluted doses of ranging from 0.

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Thymus mitochondria play a crucial role in immune function. This study identifies the novel protective role of N-Acetylglucosamine (NAG) in dexamethasone (DEX) induced mitochondrial perturbations in mice thymus. Mice were induced with DEX (5mg/kg) and treated with NAG i.

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Anti-inflammatory and antimicrobial activities of novel pyrazole analogues.

Saudi J Biol Sci

September 2016

Department of Chemistry, School of Basic Science, VELS University, Chennai 600117, Tamil Nadu, India.

A new sequence of pyrazole derivatives (1-6) was synthesized from condensation technique under utilizing ultrasound irradiation. Synthesized compounds were characterized from IR, (1)H NMR, (13)C NMR, Mass and elemental analysis. Synthesized compounds (1-6) were screened for antimicrobial activity.

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Edwardsiella tarda and Flavobacterium columnare are two important intracellular pathogenic bacteria that cause the infectious diseases edwardsiellosis and columnaris in wild and cultured fish. Prediction of major histocompatibility complex (MHC) binding is an important issue in T-cell epitope prediction. In a healthy immune system, the T-cells must recognize epitopes and induce the immune response.

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Ulcer Protective Activity of Jatropha gossypiifolia Linn. in Wistar Rats.

Pharmacognosy Res

March 2016

Department of Pharmacy Practice, Vels School of Pharmaceutical Sciences, Vels University, Pallavaram, Chennai, Tamil Nadu, India.

Background: Several synthetic drugs are useful in the treatment of peptic ulcer, but almost of these drugs are used in prolonging time, it may cause several adverse reactions. However, the herbal medicines are more potent to the treatment and minimize the side effects.

Objective: To evaluate the methanol extract of Jatropha gossypiifolia Linn.

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Immunostimulation using medicinal plant extracts is a promising approach for prevention and control of diseases with reference to sustainable fish farming. Oreochromis mossambicus, dubbed as aquatic chicken is a cultured fish worldwide and a laboratory model organism. Aeromonas hydrophila is one of the major bacterial pathogens in fish farming that causes huge loss to aquaculture industries.

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Fucoidan is one of the dominant sulfated polysaccharide which was extracted from the brown seaweed Turbinaria decurrens. In the behavioral study mice treated with fucoidan showed better response than the MPTP treated mice. Antioxidants and dopamine level has been increased in the fucoidan treated mice when compared to MPTP induced mice.

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High throughput de novo RNA sequencing elucidates novel responses in Penicillium chrysogenum under microgravity.

Bioprocess Biosyst Eng

February 2016

Department of Forest Science and Technology, College of Agriculture and Life Sciences, Chonbuk National University, Jeonju, 561-756, Republic of Korea.

In this study, the transcriptional alterations in Penicillium chrysogenum under simulated microgravity conditions were analyzed for the first time using an RNA-Seq method. The increasing plethora of eukaryotic microbial flora inside the spaceship demands the basic understanding of fungal biology in the absence of gravity vector. Penicillium species are second most dominant fungal contaminant in International Space Station.

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Highly Sensitive LC-MS-MS Method for the Determination of Tacrine in Rat Plasma: Application to Pharmacokinetic Studies in Rats.

J Chromatogr Sci

March 2016

Department of Pharmaceutics, School of Pharmaceutical Sciences, Vels Institute of Science Technology and Advanced Studies (VISTAS), Vels University, Chennai 600117, India

A rapid and highly sensitive assay method has been developed and validated for the estimation of tacrine in rat plasma using liquid chromatography coupled to tandem mass spectrometry with electrospray ionization in the positive-ion mode. The assay procedure involves a simple liquid-liquid extraction of tacrine and phenacetin (internal standard, IS) from rat plasma using ethyl acetate. Chromatographic separation was achieved with 0.

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Protein prenylation is a posttranslational modification that is indispensable for translocation of membrane GTPases like Ras, Rho, Ras etc. Proteins of Ras family undergo farnesylation by FTase while Rho family goes through geranylgeranylation by GGTase1. There is only an infinitesimal difference in signal recognition between FTase and GGTase1.

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Delivery as nanoparticles reduces imatinib mesylate-induced cardiotoxicity and improves anticancer activity.

Int J Nanomedicine

May 2016

Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal ; ICVS/3B's - PT Government Associate Laboratory, Braga/ Guimarães, Portugal ; Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.

Clinical effectiveness of imatinib mesylate in cancer treatment is compromised by its off-target cardiotoxicity. In the present study, we have developed physically stable imatinib mesylate-loaded poly(lactide-co-glycolide) nanoparticles (INPs) that could sustainably release the drug, and studied its efficacy by in vitro anticancer and in vivo cardiotoxicity assays. MTT (methylthiazolyldiphenyl-tetrazolium bromide) assay revealed that INPs are more cytotoxic to MCF-7 breast cancer cells compared to the equivalent concentration of free imatinib mesylate.

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Graphene Oxide Synthesis from Agro Waste.

Nanomaterials (Basel)

May 2015

Department of Nanoscience, School of Basic Sciences, Vels University, Pallavaram, Chennai, Tamil Nadu 600117, India.

A new method of graphene oxide (GO) synthesis via single-step reforming of sugarcane bagasse agricultural waste by oxidation under muffled atmosphere conditions is reported. The strong and sharp X-ray diffraction peak at 2θ = 11.6° corresponds to an interlayer distance of 0.

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Patients with temporal lobe epilepsy (TLE) are prescribed first-line antiepileptic drugs and surgery to the management of this disorder. Unfortunately, the surgical treatment has been shown to be beneficial for the selected patients but fails to provide a seizure-free outcome in 20-30% of TLE patients. In our present study, we investigate the possibilities of marketed antiepileptic drugs in a different manner to improve the present situation in TLE.

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Effect of UV-B radiation on the antibody response of fish - implication on high altitude fish culture.

J Photochem Photobiol B

February 2015

Centre for Fish Immunology, School of Life Sciences, Vels University, Pallavaram, Chennai 600117, India. Electronic address:

Literally, all living forms are either directly or indirectly dependent upon sun for energy. Radiation from sun is differentiated into several components of a spectrum based on the wavelength. Ultraviolet (UV) radiation may be one of the infamous radiations emitted by the sun.

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Universal stress protein (USP) is a novel target to overcome the tuberculosis resistance. Our present study enlightens the possibilities of some natural polyphenols as an antioxidant for USP. The study has shown some molecular simulations of some selected natural antioxidants with USP.

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Radial nerve mobilization reduces lateral elbow pain and provides short-term relief in computer users.

Open Orthop J

October 2014

McMaster University, School of Rehabilitation Science, Hamilton, Ontario, Canada; Clinical Research, Roth McFarlane Hand and Upper Limb Center, St. Joseph's Hospital, London, Ontario, Canada.

Study Design: Prospective Experimental Study.

Background: Computer users may be at risk of lateral elbow pain. It is theorized that adverse mechanical tension can arise in the radial nerve with sustained keyboarding due to sustained static work of the elbow extensor muscles.

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In Silico docking studies of selected flavonoids--natural healing agents against breast cancer.

Asian Pac J Cancer Prev

June 2015

Department of Bioinformatics, School of Life Sciences, Vels University, Pallavaram, Chennai, Tamil Nadu, India E-mail :