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Coronaviruses have reached at Pre-elimination Stage with Nine Amino Acid Spike Deletions and Forty-nine Nucleotide 3’-UTR Deletions

Published on: 17th September, 2024

Background: Human 30kb coronaviruses entered through the ACE-2 receptors causing fibrosis of the lungs and causing six million deaths worldwide. Here, we have investigated the mutations, deletions and insertions of the recent JN.1 omicron coronaviruses to demonstrate that coronaviruses have reached the pre-elimination stage. Methods: We multi-aligned the genomes of recent JN.1 variants using NCBI Virus Portal and CLUSTAL-Omega. The spike proteins are multi-aligned using MultAlin software and CLUSTAL-Omega.Results: The 17MPLF spike insertion was confirmed to compensate 24LPP, 31S, 69HV, 145Y, 211N and 483V deletions. The 49nt deletions in the 3’-UTR were found in 4997 JN.1 sequences although 26nt deletion was initiated previously in JN.1 as well as BA.5, BF.7, BQ.1 and XBB.1.5 omicron viruses. We first compare 3-D structures of spike proteins with or without 17MPLF four amino acids insertion and nine amino acids deletions using SWISS MODELLING. The JN.1 viruses caused a more stable trimeric spike involving Thr342, Lys436, Lys440, His441, Ser442, Gly443, Tyr445, Lys479, Ser489, Tyr490, Arg493, Pro494, Thr495, and Gln501 amino acids to interact with ACE-2 receptors. The FLiRT spike mutations were found in most KP.2 variants and other changes occurred at the NH2 terminus.Conclusion: We claimed that pre-death changes were initiated in JN.1 COVID-19 lineages and computer simulation showed that the Howard spike with 17MPLF spike insertion appeared more stable than the Oppentrons-spike without 17MPLF insertion. Surely, conflicts of COVID-19 spike sequences must be resolved.
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Comparison of Rhodium, Vanadium, Cobalt, Inconel & Silver Emitter Self-Powered Neutron Detectors: Literature Review Article

Published on: 7th October, 2024

Self-Powered Neutron Detectors (SPNDs) are in use as in-core Neutron Fluence Detectors in Nuclear Power Plants. Though the detectors are simple in design and have a common structure for the same application, there are various types of emitters (neutron-sensitive electrodes) that make SPNDs categorized into different types. There are various SPNDs in application at different types of nuclear power reactors. SPND emitters are chosen based on their characteristics/behavior in the neutron & gamma flux environment in the reactor core. A detailed Literature Review was done on five different types of SPNDs. This paper focuses on the physics behind the operation, characteristics, and review of Vanadium, Rhodium, Inconel, and Cobalt & Silver emitter-based SPNDs. A comparison study was done by a literature review on these detectors.
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Livestock insurance a tool to reduce economical loss of farmers from climate change related Hazards

Published on: 23rd July, 2018

OCLC Number/Unique Identifier: 7815003571

Climate change brings extreme events like drought, landslide, flood and anticipated more constraint to profitable livestock production causing huge economical loss in the livestock sector of the country. Deaths of livestock and damage to farms and farm infrastructure is causing a huge loss, small livestock holders are highly venerable to such climatic hazards. So to cope with these uncertain climatic hazards livestock insurance is the one of the best strategies. This study reveals that different climatic hazards is been experienced by the livestock holders of Kaski, Dolakha and Jhapa district of Nepal, 62% of the respondent has observed the change in climate. Of the total respondents perceived around 47% farmer have insured their livestock in Kaski district, 33% in Jhapa and 20 % in Dolakha district. Beside the proper vaccination, deworming, management and feeding of animals people are insuring their livestock assets due to uncertain in the climatic pattern and its consequences, this shows that livestock insurance is the one of the tool to mitigate with changing climate and climate relate hazard in livestock sector of Nepal.
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Antiviral RNAi mediated Plant defense versus its suppression by viruses

Published on: 25th January, 2019

OCLC Number/Unique Identifier: 7991645511

The age-old battle between plants and viruses has many twists and turns. Plants acquired the RNAi factors to checkmate the viruses and the viruses encode VSRs to defeat RNAi for their own survival. Plants designed mechanisms to neutralize the toxic effects of VSRs and the viruses, in their turn, use host microRNAs to strengthen their infection processes. The infightings between these two entities will take different shapes with prolonged evolution and accordingly the researchers will dig these novel forms of duels not only to throw lights in the involved mechanisms but also to manipulate various antiviral strategies. Some of the research courses that might come up in the immediate future are discussed.
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Isolation and biochemical characterization of Plant Growth Promoting (PGP) bacteria colonizing the rhizosphere of Tef crop during the seedling stage

Published on: 28th March, 2019

OCLC Number/Unique Identifier: 8056258929

The use of novel PGPR as bio inoculant is an alternative sustainable agricultural practice to improve soil health, grain quality, increase crop productivity, and conserve biodiversity. The aim of this study is to isolate, and characterized PGP bacteria colonizing tef rhizosphere during the seedling stage. For this concern, 426 samples of tef (Eragrostis tef) rhizosphere soils and roots were collected from East Shewa zone, Oromia regional state. 200 morphologically different bacterial pure colonies were isolated and screened for their PGP traits and biocontrol properties. Among these 40.5% isolates were positive for phosphate solubilization. 36% were positive for IAA production, 4.5% were positive for ammonia production, 19 % were positive for (EXPS), 15.5% were positive for protease production, 12.5% were positive for HCN productions, 9.5 % were positive for cellulase production, 4% were positive for amylase production, 3.5% were positive for chitinase production. For abiotic stress tolerance test, all of the isolates were grown well at 20oc and 30oc and neutral pH, 27% isolates were grown well at 4oc, 25.5% grew at 40oc, 25.5% were grown well on pH-9 and pH-11, 23.5% were tolerated pH-5, 3.5% grew at 50oc and 60oc, 13.5% were grown well on 5% NaCl (w/v), 3.5% were grown well on 10 and 15% NaCl (w/v), which indicated these isolates can survive in some extreme conditions. Totally 15 bacterial species having PGP traits, biocontrol properties, and abiotic stress tolerance ability were identified using the Biolog bacterial identification system. Among these, the majority of the identified PGPR have utilized carbohydrate, carboxylic acid, and amino acid, which are the main components of plant root exudates. The above results indicated that thus PGPR can be used as biofertilizers as well as biocontrol agents to replace agrochemicals to improve crop productivity. Hence, these species can be further formulated and used for greenhouse and field applications.
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Canine Distemper Virus detection based in Hemaglutinine Gene as target in Reverse Transcriptase-Polymerase Chain Reaction

Published on: 27th December, 2018

OCLC Number/Unique Identifier: 7964755439

Canine Distemper have become a major concern within the veterinary clinical work. Thus, the appearance of many cases of canine distemper in adult animals with their vaccination plan up to date has alarmed veterinarians. Many cases of canine distemper have become a major concern within the clinical veterinary task. The purpose of this work was to detect the gene of hemagglutinin of the virus canine distemper, by using the Polymerase Chain Reaction associated with Reverse transcription (RT-PCR), as confirmation of the clinical diagnosis of disease. For this, peripheral blood samples of animals were used clinically patients and were grouped according to their date of extraction and using vaccines commercial as control. The results allow to demonstrate a high sensitivity of the technique, besides allowing the use of samples up to seven days of storage at 4°C, despite the fragility of RNA viral. Detection of canine distemper virus haemagglutinin gene in field samples and its high sensitivity, suggests studying its use as a diagnostic tool complementary to the clinical diagnosis of canine distemper in our country.
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The Importance of Potato virus Y Potyvirus

Published on: 19th February, 2020

OCLC Number/Unique Identifier: 8930826479

Potato virus Y Potyvirus (PVY) is one of the most important aphid transmitted viral pathogen of potato worldwide. PVY affects potato plant (Solanum tuberosum L.), which is an important economic crop. PVY infection with potato viruses usually causing severe economic damage affecting both tubers quality and trade. PVY can degrease the production of certified seed and also crops grown for processing or fresh market. Potato is considered as one of the most economically important solanaceous crops cultivated in different regions that (PVY) has been studied in many parts of the world. Wide host plant range is a characteristic of viruses belonging to the Potyviridae. 495 species in 72 genera of 31 families were reported to be infected by PVY. Under field conditions, potato plants are subjected to attack by many viruses. The most cited virus could affect potato in the world is PVY. It has been long recognized as a threat to potato cultivation. Several studies carried out and reported that PVY is the most important virus infecting potato in different localities. Our review article is showed that PVY are the most frequently detected viruses in potato.
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Call to Action! Hypertension and Dyslipidemia in Mexico: Underestimated Deadly Duo

Published on: 11th December, 2024

Background: High blood pressure and dyslipidemia are risk factors that begin silently and share many pathophysiological mechanisms of tissue damage.Aim: Draw attention to this binomial (Hypertension and dyslipidemia) that is highly prevalent in Mexico and is mainly responsible for the leading atherothrombotic process as a cause of death in Mexico and the world.Methods: Reflective analysis of the evidence accumulated in the last 20 years. We launch key messages and support why every hypertensive patient should be treated with a statin.Results: We call for awareness to measure lipid levels and blood pressure twice a year from the age of 20 and to detect these devastating nosological entities as soon as possible. We remove the myth that PCSK9 inhibitors as well as the small interfering RNA of its synthesis are only for familial dyslipidemia. Measurement of serum Lp(a) should be routine, especially if you have a history of your own and family cardiovascular events.Conclusion: We should be aware of the little impact that health strategies have had to stop the main cause of death in Mexico. Every hypertensive patient should receive a statin, even if their serum LDLc levels are apparently normal. The great challenge of optimal control of the population with hypertension and/or dyslipidemia continues. The small interfering RNA synthesis PCSK9 should also be considered when conventional therapies are not sufficient and this situation is not infrequent.
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Antiviral and Antinematodal potentials of chitosan: Review

Published on: 14th August, 2020

OCLC Number/Unique Identifier: 8872700405

For many years, chemical pesticides have been performed to control different pests and diseases and this may be due to their broad spectrum of action, easy of application and the relatively low cost. But these chemicals have environmental risks, thus alternative control agents are needed. Chitosan is one of the novel suggested solutions to reduce the economic losses associated with chemical pesticides. Chitosan is naturally-occurring compound, as well as safe and biodegradable which obtained from certain natural sources. Chitosan have unique properties which help to control viruses, bacteria, fungi, insects, plant nematodes and other pests locally and systemically.
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Fluorinated nematicides: Novel classes in the way

Published on: 19th February, 2021

OCLC Number/Unique Identifier: 8983551820

The demand on non- fumigant nematicides was strongly increased in the last few years, and this interesting in nematicides are due to farmers are needed for safer pesticides and increasing of the regulatory pressure on many of the traditional nematicides. The control of plant parasitic nematodes with synthetic nematicides is the most widespread and preferred method, but not always effective enough. The most of synthetic nematicides especially non-fumigants are high toxic to non-target organisms. Thus, Novel non-fumigant nematicides were appeared as alternatives. The group of trifluoromethyl contains both fluensulfone and fluopyram which are different in mode of action than traditional nematicides as organophosphate and carbamate. Meanwhile, results indicated that fluensulfone and fluopyram are promising nematicides. These new nematicides are very different from traditional nematicides; they are more selective, less toxic and safer to use.
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