Pt. Nehru Complex

Tripura, India

Pt. Nehru Complex

Tripura, India

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Rahal A.,Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evam Go Anusandhan Sansthan | Kumar A.,Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evam Go Anusandhan Sansthan | Yadav B.,Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evam Go Anusandhan Sansthan | Tiwari R.,Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evam Go Anusandhan Sansthan | And 2 more authors.
BioMed Research International | Year: 2014

Oxidative stress is a normal phenomenon in the body. Under normal conditions, the physiologically important intracellular levels of reactive oxygen species (ROS) are maintained at low levels by various enzyme systems participating in the in vivo redox homeostasis. Therefore, oxidative stress can also be viewed as an imbalance between the prooxidants and antioxidants in the body. For the last two decades, oxidative stress has been one of the most burning topics among the biological researchers all over the world. Several reasons can be assigned to justify its importance: knowledge about reactive oxygen and nitrogen species production and metabolism; identification of biomarkers for oxidative damage; evidence relating manifestation of chronic and some acute health problems to oxidative stress; identification of various dietary antioxidants present in plant foods as bioactive molecules; and so on. This review discusses the importance of oxidative stress in the body growth and development as well as proteomic and genomic evidences of its relationship with disease development, incidence of malignancies and autoimmune disorders, increased susceptibility to bacterial, viral, and parasitic diseases, and an interplay with prooxidants and antioxidants for maintaining a sound health, which would be helpful in enhancing the knowledge of any biochemist, pathophysiologist, or medical personnel regarding this important issue. © 2014 Anu Rahal et al.


Dhama K.,Indian Veterinary Research Institute | Chakraborty S.,Pt. Nehru Complex | Kapoor S.,University of Veterinary and Animal Sciences
Asian Journal of Animal and Veterinary Advances | Year: 2014

As promising' antibacterials, endolysins own several pertinent features viz., diverse novel mode of action, antibacterial spectrum, low probability of developing resistance and being highly active with explicit specificity against host bacteria. Bacteriophage endolysins are mureolytic enzymes which facilitate direct targeting of peptidoglycan bonds in the bacterial cell wall. Encoded by the bacteriophage genome they are synthesized at the end of the phage lytic life cycle, headed for lysing host cell and releasing newly produced virions. In addition to this "lysis from within", endolysins from phages of gram-positive hosts are also able to swiftly lyse bacteria upon exogenous application. Lysozyme as well as endopeptidase like lysostaphine have been recommended in neonatal streptococcal and staphylococcal infection, respectively. Literature reveals strong potential of phage enzymes in human health care and veterinary medicine for control of pathogens and treatment of diverse systemic infections. They have wide applications in pathogen detection and development of diagnostics, as a means of biodefence, eliminating food pathogens and in control of phytopathogens. The defensins and cathelicidins can be exploited as enzybiotics among other families of antimicrobial peptide gene. In innate immunity such antibiotic peptides that are endogenous in nature play crucial role and forms first line of defense for protecting internal as well as external body surfaces of the host. The important portals of enzybiotics (EnzyBase and phiBIOTICS) are playing crucial role for disseminating the state of knowledge of enzybiotics. The present review discusses the widespread potential of various bacteriophage lysins/enzybiotics in the perspective of future antibacterial drug development. © 2014 Academic Journals Inc.


Verma A.K.,UP Pandit D.Dayal Upadhayay Pashu Chikitsa Vigyan Vishvidhyalaya Ewam Go Anusandhan Sansthan DUVASU | Kumar A.,UP Pandit D.Dayal Upadhayay Pashu Chikitsa Vigyan Vishvidhyalaya Ewam Go Anusandhan Sansthan DUVASU | Dhama K.,Indian Veterinary Research Institute | Deb R.,Indian Council of Agricultural Research | And 2 more authors.
Pakistan Journal of Biological Sciences | Year: 2012

Leptospirosis, caused by pathogenic spirochetes of the genus Leptospira, affects both humans and animals and is among the most common but neglected direct zoonotic disease in the world, particularly in untreated or undiagnosed animals as well as humans. Now, it has been considered as a re-emerging disease causing global health problem due to its increasing incidences in developing as well as developed nations. It is a multisystemic disease leading to death. Diagnostic tests of importance are Latex Agglutination Test (LAT), lateral flow and immunoglobulin M (IgM) based ELISA, PCR based assays, Multiple-microscopic Agglutination Test (MAT), Loop-mediated Isothermal Amplification (LAMP) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Molecular tools like PCR-RFLP, real-time PCR, multiplex PCR, qPCR and immunocapture PCR have all been found useful for rapid and confirmatory detection and differentiation of pathogenic and non-pathogenic leptospires. Inactivated/killed and attenuated vaccines are always attempted, since the beginning of vaccine and vaccination story, against all emerging pathogens with mixed success stories. The advanced tools and techniques like recombinant DNA technology, reverse genetics, DNA vaccination, molecular genetics and proteomics approaches are being explored for search of novel antigens, proteins and genes as potential candidates to discover safer, efficient and better vaccines for leptospirosis. The present review highlights the leptospirosis, susceptible population, disease transmission and epidemiology, treatment, trends and advances in diagnosis, vaccines and vaccination strategies in humans and animals with a view to combat this organism having public health significance. © 2012 Asian Network for Scientific Information.


Dhama K.,Indian Veterinary Research Institute | Chakraborty S.,Pt. Nehru Complex | Mahima,State Veterinary Hospital | Wani M.Y.,Indian Veterinary Research Institute | And 4 more authors.
Pakistan Journal of Biological Sciences | Year: 2013

Modern medicine has helped to a great extent to eradicate and cure several diseases of mankind and animals. But the existence of incurable diseases like cancer, Acquired Immunodeficiency Syndrome (AIDS), diabetes or rheumatoid arthritis, side effects of allopathic medicine, increasing trend of antibiotic resistance and chemicals and biopesticides causing dietary risk have made the situation more critical than ever before. Thus, it has become a matter of concern for the scientists and researchers to develop novel therapies. Bacteriophage therapy to treat pathogenic bacterial infections, virophage therapy for conservation of global system and avian egg yolk antibody therapy for designing prophylactic strategies against Gastrointestinal (GI) diseases are interesting approaches. Others include the use of cytokines as adjunctive immunomodulators, gene therapy focusing on diseases caused by single gene defects, RNAi technology to suppress specific gene of interest and apoptins for cancer treatment. Stem cell therapy against several diseases and ailments has also been discussed. The use of nanoparticles for better drug delivery, even though costly, has been given equal importance. Nevertheless, immunomodulation, be it through physiological, chemical or microbial products, or through essential micronutrients, probiotics, herbs or cow therapy prove to be cost-effective, causing minimum adverse reactions when compared to allopathy. Development in the field of molecular biology has created an enormous impact on vaccine development. The present review deals with all these novel and emerging therapies essential to safeguard the health of humans and companion animals. © 2013 Asian Network for Scientific Information.


Tiwari R.,Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavid Evum Go An Sans DUVASU | Verma A.K.,Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavid Evum Go An Sans DUVASU | Chakraborty S.,Pt. Nehru Complex | Dhama K.,Indian Veterinary Research Institute | Singh S.V.,Central Institute for Research on Goats CIRG
Journal of Biological Sciences | Year: 2014

Since ancient era, herbal therapy remained as medicine's backbone which is economic, safer and easily available to most of people in world. Among diverse herbal treasure, Azadirachta indica (Neem) is a highly esteemed tree with several beneficial properties and applications especially known for its incredible therapeutic and ethnomedicinal values for humankind. Neem is regarded as "free tree of India", "wonder tree", "Nature's drug store", Village dispensary", "Divine tree", "heal all", "Materia medica" and "Panacea of all Diseases". It is among highly exploited medicinal plant of Indian origin. It has been used in different medicinal systems: ayurveda, unani, homoeopathic medicine, therefore, considered as cynosure of modern medicine. All parts of the plant have some biological and medicinal properties hence valuable source of natural medicinal products. Compounds isolated from neem are broadly classified into two: (1) Isoprenoids (2) Non-isoprenoids. Isoprenoid compounds consists of diterpenoids, triterpenoids and steroids while while non-isoprenoids contains proteins and/or amino acids, polysaccharides, flavonoids etc. It is found beneficial in leprosy, gastro-intestinal problems, malaria, intestinal helminthiasis, tuberculosis, ringworms, skin disorders, boils, epilepsy, fever, respiratory distress, nausea, ulcers and in many other health related problems. This review gives a bird's eye view particularly on history, classification, active principles, mechanism of action and potential uses of neem in safeguarding human and animal health along with the several commercial preparations available in the market. © 2014 Asian Network for Scientific Information.


Tiwari R.,Uttar Pradesh Pandit Deen Daya Upadhayay Pashu Chikitsa Vigyan Vishwavidyalaya Evum | Chakraborty S.,Pt. Nehru Complex | Dhama K.,Indian Veterinary Research Institute | Wani M.Y.,Indian Veterinary Research Institute | And 2 more authors.
Pakistan Journal of Biological Sciences | Year: 2014

Darwin's theory of natural selection and concept of survival of fittest of Wallace is a universal truth which derives the force of life among all live entities on this biosphere. Issues regarding food safety along with increased drug resistance and emerging zoonotic infections have proved that multidisciplinary efforts are in demand for human and animal welfare. This has led to development of various novel therapies the list of which remains incomplete without mentioning about phages. Homologous and non-homologous recombination along with point mutation and addition of new genes play role in their evolution. The rapid emergence of the antibiotic resistant strains of bacteria have created keen interest in finding necessary alternatives to check microbial infections and there comes the importance of phages. Phages kill the bacteria either by lysis or by releasing holins. Bacteriophages; the viruses that live on bacteria are nowadays considered as the best biocontrol agents. They are used as replacers of antibiotics; food industry promoter; guard of aquatic life as well as of plants; pre-slaughter treatment agents; Generally Recognized As Safe (GRAS) food additives; Typing agent of bacteria; active tool of super bug therapy; in post harvest crops and food and during post infection and also to combat intracellular pathogens viz. Mycobacteria and Mycoplasma. Cyanophages/phycophages are particularly useful in controlling blooms produced by various genera of algae and cyanobacteria. By performing centrifugation studies and based on electron microscopy certain virus like particles containing ds RNA have been confirmed as mycophages. They are well proven as threat to pathogenic fungi (both fungal hyphae and yeast). Those that infect yeasts are called zymophages. Virophages have exquisite specificity for their viral host, hence can extensively be used for genetic studies and can also act as evolutionary link. After the discovery of very first virophage till now, a total of 3 virophages have been discovered including the Sputnik virophages that are used to study genetic recombination. Virophages also find their application in antiviral therapy; as engineer of ecological system etc. In brief, present review deals with various dimensions of these beneficial viruses that are being used and can be successfully used in future for safeguarding biosphere including animal and human health. © 2014 Asian Network for Scientific Information.


Dhama K.,Indian Veterinary Research Institute | Karthik K.,Indian Veterinary Research Institute | Chakraborty S.,Pt. Nehru Complex | Tiwari R.,Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu | And 3 more authors.
Pakistan Journal of Biological Sciences | Year: 2014

Diagnosis is an important part in case of animal husbandry as treatment of a disease depends on it. Advancement in molecular biology has generated various sophisticated tools like Polymerase Chain Reaction (PCR), its versions along with pen-side diagnostic techniques. Every diagnostic test however has both advantages and disadvantages; PCR is not an exception to this statement. To ease the odds faced by PCR several non-PCR techniques which can amplify DNA at a constant temperature has become the need of hour, thus generating a variety of isothermal amplification techniques including Nucleic Acid Sequence-Based Amplification (NASBA) along with Self-Sustained Sequence Replication (3SR) and Strand Displacement Amplification (SDA) and Loop mediated isothermal amplification (LAMP) test. LAMP stands out to be a good and effective diagnostic test for empowering in developing countries as it does not require sophisticated equipments and skilled personnel and proves to be cost-effective. Performance of LAMP mainly relies on crafting of six primers (including 2 loop primers) ultimately accelerating the reaction. LAMP amplifies DNA in the process pyrophosphates are formed causing turbidity that facilitates visualisation in a more effective way than PCR. The Bst and Bsm polymerase are the required enzymes for LAMP that does not possess 5'-3' exonuclease activity. Results can be visualized by adding DNA binding dye, SYBR green. LAMP is more stable than PCR and real-time PCR. Non-involvement of template DNA preparation and ability to generate 109 copies of DNA are added benefits that make it more effective than NASBA or 3SR and SDA. Thus, it fetches researcher's interest in developing various versions of LAMP viz., its combination with lateral flow assay or micro LAMP and more recently lyophilized and electric (e) LAMP. Availability of ready to use LAMP kits has helped diagnosis of almost all pathogens. LAMP associated technologies however needs to be developed as a part of LAMP platform rather than developing them as separate entities. This review deals with all these salient features of this newly developed tool that has enlightened the world of diagnosis. © 2014 Asian Network for Scientific Information.


Tiwari R.,Uttar Pradesh Pandit Deen Dayal Upadhayay | Dhama K.,Indian Veterinary Research Institute | Chakraborty S.,Pt. Nehru Complex | Kumar A.,Uttar Pradesh Pandit Deen Dayal Upadhayay | And 2 more authors.
Pakistan Journal of Biological Sciences | Year: 2014

Since the discovery of bacteriophages at the beginning of the 19th century their contribution to bacterial evolution and ecology and use in a variety of applications in biotechnology and medicine has been recognized and understood. Bacteriophages are natural bacterial killers, proven as best biocontrol agents due to their ability to lyse host bacterial cells specifically thereby helping in disease prevention and control. The requirement of such therapeutic approach is straight away required in view of the global emergence of Multidrug Resistant (MDR) strains of bacteria and rapidly developing resistance to antibiotics in both animals and humans along with increasing food safety concerns incuding of residual antibiotic toxicities. Phage typing is a popular tool to differentiate bacterial isolates and to identify and characterize outbreak-associated strains of Salmonella, Campylobacter, Escherichia and Listeria. Numerous methods viz. plaque morphology, ultracentrifugation in the density gradient of CsCl2, and random amplified polymorphic DNA (RAPD) have been found to be effective in detection of various phages. Bacteriophages have been isolated and recovered from samples of animal waste products of different livestock farms. High titer cocktails of broad spectrum lytic bacteriophages are usually used for clinical trial for assessing their therapeutic efficacy against antibiotic unresponsive infections in different animals. Bacteriophage therapy also helps to fight various bacterial infections of poultry viz. colibacillosis, salmonellosis and listeriosis. Moreover, the utility of phages concerning biosafety has raised the importance to explore and popularize the therapeutic dimension of this promising novel therapy which forms the topic of discussion of the present review. © 2014 Asian Network for Scientific Information.


Dhama K.,Indian Veterinary Research Institute | Rajagunalan S.,Indian Veterinary Research Institute | Chakraborty S.,Pt. Nehru Complex | Verma A.K.,Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa | And 3 more authors.
Pakistan Journal of Biological Sciences | Year: 2013

The term food borne diseases or food-borne illnesses or more commonly food poisoning are used to denote gastrointestinal complications that occur following recent consumption of a particular food or drink. Millions of people suffer worldwide every year and the situation is quiet grave in developing nations creating social and economic strain. The food borne pathogens include various bacteria viz., Salmonella, Campylobacter, Escherichia coli, Listeria monocytogenes, Yersinia enterocolitica, Staphylococcus, Arcobacter, Clostridium perfringens, CI. botulinum andBacillus cerews and helminths viz., Taenia. They also include protozoa viz., Trichinella, Sarcocystis, Toxoplasma gondii and Cryptosporidium parvum. The zoonotic potential and the ability to elaborate toxins by many of the microbes causing fatal intoxication are sufficient to understand the seriousness of the situation. The viral agents being host specific their transmission to humans through food of animal origin is not yet confirmed although these animal viruses are similar to that of viruses infecting human. Food-borne bacteria; protozoa and helminthes have complex distribution pattern in the environment and inside the host system. This along with complexity of the maintenance chain and life cycle (of parasites) has made it difficult for epidemiologist and diagnostician to undertake any immediate safety measures against them. Serological and molecular diagnostic tests viz. ELISA, Latex agglutination test, Lateral flow assays, Immunomagnetic separation assays, molecular assays viz. Polymerase Chain Reaction (PCR), multiplex PCR, rmmuno-PCR, Realtime PCR, Random Amplrfred Polymorphs DNA (RAPD)-PCR, DNA microarrays and probes are widely used. Along with these LAMP assays, Capillary Electrophoresis-Single Strand Confirmation polymorphism (CE-SSCP); Flow cytometry, FISH, Biosensors, Direct epifluorescent filter technique, nanotechnology based methods and sophisticated tools (ultrasonography, magnetic resonance imaging and chlonangio-pancreatography) have aided in the diagnosis greatly. Most of the food-borne illnesses are self-limiting but in many instances antibiotics are recommended. With the increased drug resistance however use of chicken immunoglobulin, bacteriophage therapy, probiotics and herbs are gaining much importance these days. Adoption of proper prevention and control measures (including cooking procedures; hygiene, strict adherence to HACCP principles, public awareness and disease surveillance and monitoring) are the need of hour. All these have been discussed vividly in this review to help epidemiologists, diagnosticians, clinicians and above all common people so as to enable them avoid negligence regarding such serious issue. © 2013 Asian Network for Scientific Information.


Rahal A.,Pashu Chikitsa Vigyan Vishwavidyalay Evum Go Anusandhan Sansthan DUVASU | Mahima,Pashu Chikitsa Vigyan Vishwavidyalay Evum Go Anusandhan Sansthan DUVASU | Verma A.K.,Pashu Chikitsa Vigyan Vishwavidyalay Evum Go Anusandhan Sansthan DUVASU | Kumar A.,Pashu Chikitsa Vigyan Vishwavidyalay Evum Go Anusandhan Sansthan DUVASU | And 4 more authors.
Journal of Biological Sciences | Year: 2014

At present, almost every third person in the society is under stress and having chronic disorders like diabetes, arthritis, allergy, cardiovascular disease, fatigue and even cancer. Recently, there is decline in the physical and mental capabilities along with the social values. So this certainly should raise the alarms as to why such deterioration is taking place in the society or what are the changes in the lifestyle that might have a role direct/indirect in evolution of such changes? Vegetable is an immense store of active chemical compounds and considered as the cheapest and most easily available sources of carbohydrate, fiber, proteins, vitamins, minerals and amino acids. The intake of green and leafy vegetables lowers the risk of chronic diseases, cardiovascular diseases, anemia, cancer, oxidative stress, diabetes, weight gain etc. In recent time, vegetables have also been identified as safe and economic expression system for producing the recombinant proteins including the vaccines against many infectious diseases like hepatitis B, malaria, rotavirus, HIV, Helicobacter pylori, pestedes petits ruminants etc. However, besides the beneficial effect, contaminated and raw vegetables harbors pesticide residues and many pathogenic microbes viz., norovirus, Salmonella, E. coli, Shigella, Listeria monocytogens and also prove to be an excellent source of disease outbreaks. The present review highlights the phytonutrients and neutraceuticals in fruits and vegetables; their medicinal and health benefits for humans and their domestic as well as companion animals along with their fruitful practical applications and perspectives like bioreactor for producing vaccine along with the methods that can increase their nutritional benefits. © Asian Network for Scientific Information.

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