Publications by authors named "Ashok K Tiwari"

Oncolytic viral gene therapy is a directed approach to target cancer cells without affecting healthy cells of the body. Canine parvovirus (CPV2) is an oncolytic virus that precisely targets and destroys neoplastic cells by causing DNA damage, mitochondrial damage, and apoptosis. Non-structural gene 1 (NS1) of CPV, concerned with viral DNA replication is a key mediator of cytotoxicity of CPV and can specifically cause tumor cell lysis.

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India is ranked as the 2nd largest egg producer in the world. Despite the prevalence of backyard poultry (free range), a majority of the commercial egg-laying hens in the country are still housed in battery cages. There is a global shift toward cage-free eggs, due to regulations and increased demand from conscious consumers and food corporations.

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In this study, the impact of varying dietary zinc (Zn) and copper (Cu) levels on the growth, immunological response, and skeletal health of developing turkey poults was investigated. For 0-4 and 5-8 weeks of age, respectively, three Zn levels of 50, 70, and 90 mg/kg and 45, 65, and 85 mg/kg were employed. Three Cu levels, namely 8, 12, and 16 mg/kg for 0-8 weeks of age, were also utilized.

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The present study was intended for the identification of secondary metabolites in acetone extract of the lichen using UPLC-ESI-QToF-MS/MS and the detection of bioactive compounds. This study led to the identification of 22 metabolites based on their MS/MS spectra, accurate molecular masses, molecular formula from a comparison of the literature database (DNP), and fragmentation patterns. In addition, potent antioxidant and α-glucosidase inhibitory potentials of acetone extract of motivated us to isolate 10 metabolites, which were characterized as salazinic acid (), norlobaridone (), atranorin (), lecanoric acid (), lichesterinic acid (), protolichesterinic acid (), methyl hematommate (), iso-rhizonic acid (), atranol (), and methylatratate ( based on their spectral data.

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An experiment was carried out to assess the efficacy of supplemental ascorbic acid (AA) on broiler chicken production performance, blood haematological profile, biochemical profile, and carcass traits under heat stress conditions. A total of 192-day-old broiler chicks were divided into four groups, each with six replicates of eight each (4 × 6 × 8). Four corn-based dietary treatments were formulated: T (control diet), T (T + AA at 200 mg/kg), T (T + AA at 400 mg/kg), and T (T + AA at 600 mg/kg) for a period of 42 days.

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(+)-Usnic acid (UA), a natural dibenzofuran derivative, abundantly produced by lichens and possess wide number of biomedical applications including antibacterial, anti-inflammatory, anti-oxidant and anticancer activities. In the present study, as series of usnic acid derivatives () were synthesised using Mannich reaction assessed for their antioxidant, α-glucosidase, and anticancer activities. The antioxidant activity showed that compound displayed potent antioxidant activity by scavenging the activities of DPPH and ABTS.

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Peste des petits ruminants (PPR) is an acute, highly contagious viral disease of goats and sheep, caused by the Peste des petits ruminants virus (PPRV). Earlier studies suggest the involvement of diverse regulatory mechanisms in PPRV infection. Methylation at N6 of Adenosine called mA is a type RNA modification that influences various physiological and pathological phenomena.

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Pig pasteurellosis, caused by Pasteurella multocida, is an acute infection that also has economic implications for pig farmers. We report the complete genome sequence of a P. multocida, serovar B:2 'Soron' strain isolated from the blood of a pig that had died of pasteurellosis in India.

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The experiment was designed to study the effect of supplemental sources and concentrations of copper on the performance and development and mineralization of tibia bones in broiler chickens. A 42-day feeding experiment was conducted utilising three copper sources, including copper sulphate (CuS), copper chloride (CuCl), and copper propionate (CuP), each with four different concentrations, i.e.

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This study sought to determine the effects of dietary paraprobiotic (PPB) on broiler chicken performance, immunity, gut health, and carcass traits. A total of 240 day-old CARIBRO Vishal commercial broiler chicks of identical body weight randomly divided into six treatment groups, each with five replicates and eight chicks in each replicate. Six dietary treatments were preapared: T = (control diet), T = T + 0.

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In this study, the effects of dietary copper supplements on broiler Japanese quail growth performance, immune response, blood biochemistry, and carcass quality were examined. Two copper sources (copper sulphate-CuS, and copper methionine-CuM), each at five distinct dietary dosages of 5, 10, 15, 100, and 150 mg/kg, were used. A total of 280 (10 × 4 × 7) day-old quail chicks of uniform body weight were randomly distributed into 10 treatments with 4 replicates each and having 7 chicks in each replicate.

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In this study, we propose ultra-performance liquid chromatography coupled with quadrupole/time-of-flight mass spectrometry (UPLC-QToF-MS/MS)-guided metabolite isolation as a choice analytical approach to the ongoing structure−activity investigations of chemical isolates from the edible lichen, Ramalina conduplicans Vain. This strategy led to the isolation and identification of a new depside (5) along with 13 known compounds (1−4, 6−14), most of which being newly described in this lichen species. The structures of the isolates were established by detailed analysis of their spectral data (IR, NMR, and Mass).

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Marine seaweeds are predominant for nutraceuticals and have been food source since ancient times and are currently being used in Chinese medicines and Japanese traditional medicines. In the present study, the chemical profile analysis of Halimeda gracilis was performed using UPLC-ESI-Q-TOF-MS analysis and assessed for its anticancer activity. A cursory investigation of the total ion chromatograms of the both methanol (MHG) and ethyl acetate (EAHG) of H.

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The objective of this present study was to investigate the potentiality of prebiotics (mannan oligosaccharides-MOS and fructo-oligosaccharides-FOS) in replacement of antibiotic growth promoter and their relationship with physico-chemical indices, antioxidant and oxidative stability and carcass traits of broiler chickens meat. Accordingly, 240 day-old broiler chicks of uniform body weight divided in 6 treatment groups with 5 replicate each (5 × 6 = 30) having 8 birds in each replicate. Six corn based dietary treatments were formulated viz.

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A series of 1, 2, 3- triazole hybrids (-) were synthesised from major phenolic constituent, 4-methoxy ethyl cinnamate () isolated from rhizomes of (Sm), a traditional medicinal plant used in variety of disease conditions. All the synthesised analogues were tested for their antiproliferative potential against HCT 116 (colon cancer), A549 (lung cancer), DU-145 (prostate cancer), Hep G2 (hepatoma) and HEK-293 (normal) cell lines. Among the compounds tested, compounds and potently arrested proliferation of DU-145 (prostate cancer) cell line.

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The present study describes the genetic diversity in the Tams1 gene (733 bp) of Theileria annulata along with the sequence, phylogenetic and haplotype analyses of the Indian isolates. The phylogenetic analyses displayed distinct clustering of the Indian isolates into three groups suggesting the presence of three genotypes, hitherto designated as T. annulata genotypes 1-3 (G1-G3).

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The peptide nucleic acid (PNA) is a chimeric molecule with the nucleobases connected by peptide bonds. This chimeric nature gives the PNA certain therapeutic advantages over natural antisense nucleic acid molecules. The PNA probes are known for its better and stronger complementation with target nucleic acids.

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Transcriptome profiling of Vrindavani and Tharparkar cattle (n = 5 each) revealed that more numbers of genes were dysregulated in Vrindavani than in Tharparkar. A contrast in gene expression was observed with 18.9 % of upregulated genes in Vrindavani downregulated in Tharparkar and 17.

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The exploration into the strategies for the prevention and treatment of cancer is far from complete. Apart from humans, cancer has gained considerable importance in animals because of increased awareness towards animal health and welfare. Current cancer treatment regimens are less specific towards tumor cells and end up harming normal healthy cells.

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Classical Swine Fever (CSF) is a contagious viral disease of pigs which is endemic in several parts of the world, including India. Prophylactic vaccination using live attenuated vaccine is the preferred method of control. However, there is significant inter-individual variation in the antibody response to vaccination.

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Insulin resistance is associated with obesity and can lead to several metabolic disorders including type II diabetes, nonalcoholic fatty liver disease and cardiovascular problems. Search for the small molecules which can either induce or mimic the insulin action are of great interest and can be utilized to manage insulin resistance. There are several dietary phytochemicals which can potentially have insulinomimetic action.

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Phytometabolomic analysis of Nymphaea nouchali (Burm. F.) boiled rhizome was carried out utilizing UPLC-Q-TOF-MS, LC-QqQ-MS and GC-MS techniques and evaluated for antihyperglycemic and antioxidative stress potentials.

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Classical swine fever (CSF) is an important viral disease of pigs and controlled by vaccination. Unorganised backyard and wild pigs are difficult to vaccinate by needle vaccination. Here we formulated liquid vaccines using an Indian CSF cell culture vaccine virus and four stabilisers and evaluated their stability at 4 °C, 25 °C and 37 °C up to 24 h for use as oral vaccine.

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Study Design: Prospective diagnostic imaging study.

Purpose: The stability of the thoracic and lumbar spine depends significantly on the posterior ligamentum complex (PLC). Therefore, it is essential to diagnose PLC injuries accurately before deciding on a treatment plan for thoracolumbar injury patients.

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