Publications by authors named "Raja Angamuthu"

Infectious laryngotracheitis (ILT) is a severe upper respiratory disease highly contagious in chickens that causes a huge economic impact on the poultry industry all over the world. The current study aimed to design a multi-epitope-based vaccine candidate using envelope glycoprotein B and glycoprotein D of the ILT virus using an immune informatics approach. The glycoproteins B and D are crucial for attachment as well as entry of ILT virus inside the cell, which makes them a potential option for designing vaccine candidates.

View Article and Find Full Text PDF

The poultry farming industry encounters considerable obstacles stemming from viral diseases, resulting in elevated mortality rates and substantial economic losses. Current research highlights the significant involvement of long non-coding RNAs (lncRNAs) in the interactions between hosts and pathogens by enhancing antiviral responses at different levels, such as the activation of pathogen recognition receptors, as well as through epigenetic, transcriptional, and post-transcriptional modifications. Specific long non-coding RNAs (lncRNAs), including ERL lncRNA, linc-GALMD3, and loc107051710, have been recognized as significant contributors to the antiviral immune response to multiple avian viral pathogens.

View Article and Find Full Text PDF

Importance: Few studies have examined the interactions of the chicken anemia virus (CAV) with the immune system of embryos.

Objective: To study the pathogenicity of the CAV in chicken embryos with respect to its tissue tropism and viral load in different tissues.

Method: The pathogenicity of the CAV was examined in about-to-hatch embryos through cytology, histopathological examinations, molecular detection, immunocytochemistry (ICC), immunofluorescent test, and immunohistochemistry techniques.

View Article and Find Full Text PDF

This study focused on improving the milk fat percentage for crossbred dairy cows in smallholder systems, using GEBV. The data were collected from 2507 animals between 2016 and 2023 under BAIF's Enhanced Genetic Gains program in Pune, India. After refining the dataset, 33,845 records from 1896 animals were analyzed.

View Article and Find Full Text PDF

In the quest to understand biologically relevant interactions of environmentally detrimental SO with host molecules to modulate the electronic properties of the binding sites, we have directly observed the lone pair⋯π interaction between the aromatic ring and nucleophilic O of SO (3.11 Å), for the first time to the best of our knowledge, in addition to the interaction between electrophilic S of SO and metal-bound thiolate (2.63 Å).

View Article and Find Full Text PDF

The progression of genetic selection techniques to enhance farm animal performance traits is guided by the present level of genetic variation and maternal impact in each trait, as well as the genetic association between traits. This study was conducted on a population of Mecheri sheep maintained from 1980 to 2018 at Mecheri Sheep Research Station, Pottaneri, India, to determine variance and covariance components, as well as genetic parameters for various production performance traits. A total of 2616 lambs, produced by 1044 dams and 226 sires, were examined in the study and the production traits of Mecheri sheep assessed include birth weight (BW), weaning weight (WW), six-month weight (SMW), nine-month weight (NMW), and yearling weight (YW).

View Article and Find Full Text PDF

Fragile hemiaminal ether linkages present in the backbone of koneramines (L OR'), tridentate ligands, bound to copper(II) in stereoselectively self-assembled syn-[Cu(L OR')X ] complexes were transformed into sturdy methylene linkages to make corresponding rac-[Cu(L H)Cl ] complexes by late-stage ligand modification after coordination with the retention of coordination sphere. The generality of stereoselective self-assembly of koneramine complexes is shown by utilising a number of metal ions, anions, amines, alcohols and thiols with complete characterisations.

View Article and Find Full Text PDF

Newcastle disease (ND) is highly contagious and usually causes severe illness that affects all over the world, including domestic poultry. Depending on the virus's virulence, it can impact the nervous, respiratory, and digestive systems and cause up to 100% mortality. The genes are activated in response to viral infection.

View Article and Find Full Text PDF

Background And Aim: Global warming has grave consequences on livestock production systems and profound negative effects on animal production. This study aimed to carry out an thermal stress stimulation (TSS) of bovine peripheral blood mononuclear cells (PBMCs) using different thermal assault conditions (TACs), including normal to extreme temperatures and varying durations of thermal exposure (DTE) to understand how PBMCs of Indian Zebu-Jersey crossbreds respond to various levels and durations of heat shock.

Materials And Methods: Ten milliliters of blood were collected from 70 Indian Zebu-Jersey crossbreds under aseptic conditions and were sampled for isolating PBMCs.

View Article and Find Full Text PDF
Article Synopsis
  • The anthracene-based koneramines (L) act as a chemosensor for selectively detecting cadmium (Cd) and zinc (Zn) through fluorescence changes due to inhibited electron transfer when these metals bind.
  • Studies on MCF-7 cancer cells show the compound can effectively detect Cd and Zn inside living cells, suggesting its potential in biological applications.
  • The Cd complex not only shows strong antibacterial effects against drug-resistant pathogens but also has low toxicity to normal cells, making it a promising candidate for a new antibiotic formulation.
View Article and Find Full Text PDF

Herein we report a hydrogen-bonded three-dimensional network originating from a single source precursor, -triisopropylaminotriazine, that is both a donor and an acceptor of hydrogen bonds. The symmetric design allowed the formation of intermolecular hydrogen bonds leading to helices in all three directions. The eccentric Piedfort units present in the framework with a distance of 8.

View Article and Find Full Text PDF

In this paper, a fast and simplest one-pot tactic was used to synthesis fluorescent oxygen doped carbon dots from Tween-20 (TTO-CDs) is reported. The TTO-CDs were microwavically synthesized by using Tween-20 as both the carbon precursor and the oxygen dopant as well. The surface morphology, crystalline and/or amorphous nature, composition and optical assets of synthesized TTO-CDs were studied by means of existing techniques.

View Article and Find Full Text PDF

Koneramines (L OR', R=Ph or Ts; R'=Me, iPr) and their complexes were found to emerge from the system of pyridine-2-carboxaldehyde and N-phenyl/tosylethylenediamine when a primary or secondary alcohol was used as solvent. Imidazolidinylpyridines (L , R=Ph or Ts) became major emergents whereas hemi-aminals (L OH, R=Ph or Ts) are minor emergents of the system when tertiary butanol was used as the solvent; the bulky tertiary butyl group prevented the addition of alcohol to the iminium ion that diverted the equilibrium towards imidazolidinylpyridines. By playing with the components of the reaction mixture, crystals of the metastable intermediates bound to copper(II) and/or zinc(II) were obtained and the structures were determined by X-ray diffraction analysis.

View Article and Find Full Text PDF

A [NiFe] complex [(dppe)Ni(pdt)FeCp*(CO)] was isolated and characterized as two isomers [1(CO)] and [1'(CO)]. Heating the solution of [1(CO)] allowed it to convert into [1'(CO)]. The one-electron oxidation of [1'(CO)] to [1'(CO)] induced fluxional CO movement providing [1(CO)].

View Article and Find Full Text PDF

Classical swine fever (CSF) is a highly contagious and potentially fatal disease of domestic pigs. Classical swine fever is routinely diagnosed by clinical signs, serology, detection of CSF virus (CSFV) nucleic acid by PCR and virus isolation. Most of the current CSF diagnostic methods are expensive and have an extended turnaround time.

View Article and Find Full Text PDF

Reported are multi-component one-pot syntheses of chiral complexes [M(L(R) OR')Cl2 ] or [M(L(R) SR')Cl2 ] from the mixture of an N-substituted ethylenediamine, pyridine-2-carboxaldehyde, a primary alcohol or thiol and MCl2 utilizing in-situ formed cyclized Schiff bases where a C-O bond, two stereocenters, and three C-N bonds are formed (M=Zn, Cu, Ni, Cd; R=Et, Ph; R'=Me, Et, nPr, nBu). Tridentate ligands L(R) OR' and L(R) SR' comprise two chiral centers and a hemiaminal ether or hemiaminal thioether moiety on the dipicolylamine skeleton. Syn-[Zn(L(Ph) OMe)Cl2 ] precipitates out readily from the reaction mixture as a major product whereas anti-[Zn(L(Ph) OMe)Cl2 ] stays in solution as minor product.

View Article and Find Full Text PDF

Experiments are described that probe the stability of N-substituted derivatives of the azadithiolate cofactor recently confirmed in the [FeFe] hydrogenases (Berggren, G., et al. Nature 2013, 499, 66).

View Article and Find Full Text PDF

Ovine rinderpest or goat plague is an economically important and contagious viral disease of sheep and goats, caused by the Peste des petits ruminants virus (PPRV). Differences in susceptibility to goat plague among different breeds and water buffalo exist. The host innate immune system discriminates between pathogen associated molecular patterns and self antigens through surveillance receptors known as Toll like receptors (TLR).

View Article and Find Full Text PDF

From an immunologist perspective, sharks are an important group of jawed cartilaginous fishes and survey of the public database revealed a great gap in availability of large-scale sequence data for the group of Chondrichthyans the elasmobranchs. In an attempt to bridge this deficit we generated the transcriptome from the spleen and kidney tissues (a total of 1,606,172 transcripts) of the shark, Chiloscyllium griseum using the Illumina HiSeq2000 platform. With a cut off of > = 300 bp and an expression value of >1RPKM we used 43,385 transcripts for BLASTX analysis which revealed 17,548 transcripts matching to the NCBI nr database with an E-value of < = 10(-5) and similarity score of 40%.

View Article and Find Full Text PDF

Background: Peste des petits ruminants (PPR) is an economically important disease of small ruminants such as sheep and goats. The disease is characterized by severe pyrexia, oculo-nasal discharge, pneumonia, necrosis and ulceration of the mucous membrane and inflammation of the gastro-intestinal tract leading to severe diarrhea. A SYBR Green I based real time RT-PCR targeting the N gene of PPRV has not been established for PPRV detection.

View Article and Find Full Text PDF

Toll-like receptors (TLRs) are transmembrane receptors composed of extra cellular leucine rich repeats (LRRs) that identify specific pathogen associated molecular patterns triggering a innate immune cascade. The LRR regions of TLR 1-10 proteins of goat (Capra hircus), sheep (Ovis aries), buffalo (Bubalus bubalis) and bovine (Bos taurus) were modeled using MODELLER 9v7 tool and validated. The similarities and variations of these 10 TLRs extracellular regions of each species were compared using online servers like FATCAT, SSM and SSAP.

View Article and Find Full Text PDF

A loop-mediated isothermal amplification (LAMP) method for the rapid detection of serotype 1 Marek's disease virus (MDV) was developed. The method used a set of three pairs of primers to amplify the MEQ gene for detecting serotype 1 MDV. The MDV LAMP method did not cross-react with serotype 2 and serotype 3, nor did the LAMP primers have binding sites for the common avian DNA viruses (reticuloendotheliosis virus, chicken anemia virus, subgroup J of the avian leukosis virus).

View Article and Find Full Text PDF

Ocular swabs from canine distemper virus (CDV) suspected live or brain tissue from dead dogs were tested for the presence of CDV nucleoprotein (N) gene using reverse transcriptase polymerase chain reaction (RT-PCR). Partial "N" gene sequencing of the RT-PCR-positive samples and the local vaccine virus revealed that the Ind/Andaman 01/07 virus was highly divergent from the rest of the CDV isolates and from the vaccine strain. Quantitative real-time PCR (qRT-PCR) using SYBR Green I chemistry for CDV haemagglutinin "H" gene quantification showed C(t) values ranging from 29.

View Article and Find Full Text PDF

The reaction of [(MeC(5)H(4))(2)Ti(SH)(2)] with cyclic imines with the formula (CH(2)NR)(3) gives 2-aza-1,3-dithiolato chelate complexes [(MeC(5)H(4))(2)Ti{(SCH(2))(2)NR}] (1, R = Ph; 2, R = Me; 3, R = CH(2)Ph). These compounds demonstrate that azadithiolate ligands can exist on mononuclear metal centers. The complexes were characterized by (1)H NMR spectroscopy, ESI-mass spectrometry, and X-ray crystallography.

View Article and Find Full Text PDF

Purpose: The present study was carried out to identify and assess the expression levels of toll-like receptors (TLRs) 1-10 mRNA in corneal epithelial cells of buffalo, goat, sheep and bull.

Materials And Methods: The globes from the respective species were collected and the corneal epithelium was denuded. The expression levels of the different TLR mRNAs were assessed by densitometry of the band intensities following reverse transcriptase polymerase chain reaction (RT-PCR).

View Article and Find Full Text PDF