Publications by authors named "Vivek Kumar Gupta"

Classical Swine Fever (CSF) is a highly contagious viral disease that causes substantial economic losses in the swine industry. Timely detection of CSFV infection is essential for effective disease control; however, current antibody-based diagnostic methods are limited due to the delayed host immune response. In this study, we developed a novel peptide-based lateral flow assay (LFA) targeting the E2 antigen of the Classical Swine Fever Virus (CSFV) to enable rapid and field-deployable detection.

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Brain cancer patients may experience a wide range of excruciating and debilitating sensations as the tumours enlarge. This is frequently because the tumours press against the brain or obstruct normal brain and nerve impulses. While it is unusual for brain cancer to spread to other regions of the body, the majority of cases are quite aggressive.

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African Swine Fever (ASF) is a highly contagious transboundary viral disease affecting domestic pigs worldwide, often resulting in nearly 100 % mortality due to the lack of effective vaccines. However, wild species such as warthogs (Phacochoerus sp.) and bush pigs (Potamochoerus sp.

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Background: Information on global transcriptomic changes in the porcine ampulla after ovulation is crucial for understanding of oviductal physiology at the molecular level. The objective of the present study was to investigate the differentially expressed genes (DEGs) and signalling pathways regulating the functionality of ampulla in pigs post-ovulation.

Methods And Results: The RNA-sequencing of the post-ovulatory ampulla (POA) and early luteal ampulla (ELA) tissues was conducted using Illumina NextSeq2000.

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Researchers have widely undertaken targeted genome editing in pigs to optimize pig productivity, disease tolerance and for biomedical research. The present study aimed to investigate research advancements, focus areas, gaps, and challenges in genome editing in pigs using bibliometric analysis. The bibliographic information of publications on genome editing in pigs from 2010 to 2023 was retrieved from the Scopus database.

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Introduction: Due to the yearly rise in primary anterior cruciate ligament (ACL) reconstructions, revision ACL reconstruction is becoming more and more common in knee surgery. Choosing the appropriate graft and determining the surgical treatment staging by assessing the likelihood of doing the most anatomical revision canals and placing them with the primary canals before surgery are crucial factors affecting treatment outcomes.

Aim Of The Study: The purpose of this study was to evaluate the differences in the patient-reported functional outcomes in revision ACL reconstruction using peroneus longus and bone-patellar tendon-bone (BTB) autografts in a single-stage revision ACL reconstruction.

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Pigs serve as critical reservoirs and amplifiers for numerous zoonotic viral diseases, presenting substantial public health challenges in India. This study highlights the epidemiology and emerging trends of key zoonotic viruses associated with pigs, emphasizing their role in endemic and emerging disease dynamics. Japanese encephalitis virus (JEV) persists as a major concern, with pigs acting as amplifying host, while hepatitis E virus (HEV) remains a prominent cause of viral hepatitis, transmitted via contaminated water and pork products.

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Investigations on heat stress induced transcriptomic changes is critical to characterization of candidate genes for thermal adaptability in livestock. Continues spells of high ambient temperature due to climate change has amplified reproductive dysfunctions, necessitating immediate attention. The present study aimed to explore the transcriptomic signature of heat stressed granulosa cells (GCs) and signalling pathways regulating their adaptability to thermal challenge.

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This research aimed to characterize the mitochondrial genome of the Ghoongroo (GH) pig, a notable breed in India, along with its crossbred varieties, to elucidate their matrilineal components, evolutionary history, and implications for conservation. Seven pigs (5 GH, 2 crossbred, namely Rani and Asha) were sequenced for complete mitochondrial genome, while 24 pigs (11 GH, 6 Rani, and 7 Asha) were sequenced for the complete D-loop of the mitochondrial genome. The genome size of these pigs was determined to be 16,690 bp.

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Extended-spectrum β-lactamase (ESBL) producing represents a formidable challenge in the field of microbiology and public health due to its resistance to commonly used antibiotics. These strains pose a serious threat to human and animal health, underscoring the urgency of comprehensive research and surveillance. The ongoing investigation seeks ESBL producing strains from pig farms and slaughterhouses in West Bengal and Assam, India.

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Pig posture is closely linked with livestock health and welfare. There has been significant interest among researchers in using deep learning techniques for pig posture detection. However, this task is challenging due to variations in image angles and times, as well as the presence of multiple pigs in a single image.

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Article Synopsis
  • * The multiplex assay was optimized for accuracy and demonstrated a sensitivity to detect as low as 10 CFU/μl of pathogens in samples, confirming its effectiveness with 210 pork samples collected from various sources.
  • * Results showed an occurrence of MRSA at 1.9% and MSSA at 18.1%, with a mixed contamination rate of 6.19% in tested pork, highlighting the assay's ability to distinguish multiple pathogens efficiently in one reaction.
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Viral infection disrupts the normal regulation of the host gene's expression. In order to normalise the expression of dysregulated host genes upon virus infection, analysis of stable reference housekeeping genes using quantitative real-time-PCR (qRT-PCR) is necessary. In the present study, healthy and African swine fever virus (ASFV) infected porcine tissues were assessed for the expression stability of five widely used housekeeping genes (HPRT1, B2M, 18 S rRNA, PGK1 and H3F3A) as reference genes using standard algorithm.

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  • * Two isothermal amplification techniques, loop-mediated isothermal amplification (LAMP) and polymerase spiral reaction (PSR), were created to visualize the ASFV genome in clinical samples, alongside a comparative quantitative real-time PCR (qRT-PCR) assay.
  • * The sensitivity of all three assays was comparable (2.64 ×10 copies/µL), with LAMP showing high relative accuracy and specificity (95.37% and 97.46%) compared to PSR, which had slightly different values (102.48
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  • 1,25(OH)D is a fat-soluble vitamin that helps regulate calcium levels and is affected by body fat, which can lead to obesity and increased cancer risk, especially with low levels of vitamin D.
  • The study explores how vitamin D receptor (VDR) mechanisms link obesity and cancer, aiming to identify molecular targets for drug development.
  • Research indicates that VDR gene plays a role in cancer progression in obese patients with vitamin D deficiency, highlighting the need for safe, effective 1,25(OH)D-based therapies to treat cancer.
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Recently, the availability of point-of-care sensor systems has led to the rapid development of smart and portable devices for the detection of hazardous analytes. The rapid flow of artificially ripened fruits into the market is associated with an elevated risk to human life, agriculture, and the ecosystem due to the use of artificial fruit ripening agents (AFRAs). Accordingly, there is a need for the development of "Point-of-care Sensors" to detect AFRAs due to several advantages, such as simple operation, promising detection mechanism, higher selectivity and sensitivity, compact, and portable.

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Article Synopsis
  • - Since 2020, African swine fever (ASF) has affected most pig breeds in Northeast India, causing major economic losses for farmers, but not the unique Doom pigs, which are resilient and closely related to wild pigs.
  • - Research has identified ASFV genotype II as the cause of outbreaks in the region and highlighted the immune system genes MYD88, LDHB, and IFIT1, which play a role in the disease's progression.
  • - The study focused on understanding the natural resistance of Doom pigs to ASF through gene expression analysis, providing valuable insights into the genetic mechanisms behind their tolerance to the virus.
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Sickle cell disease (SCD) is the most severe monogenic hemoglobinopathy caused by a single genetic mutation that leads to repeated polymerization and depolymerization of hemoglobin resulting in intravascular hemolysis, cell adhesion, vascular occlusion, and ischemia-reperfusion injury. Hemolysis causes oxidative damage indirectly by generating reactive oxygen species through various pathophysiological mechanisms, which include hemoglobin autoxidation, endothelial nitric oxide synthase uncoupling, reduced nitric oxide bioavailability, and elevated levels of asymmetric dimethylarginine. Red blood cells have a built-in anti-oxidant system that includes enzymes like sodium dismutase, catalase, and glutathione peroxidase, along with free radical scavenging molecules, such as vitamin C, vitamin E, and glutathione, which help them to fight oxidative damage.

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The present study aimed to identify novel biostimulatory compounds in boar seminal gel (SG), saliva and semen using Gas chromatography-mass spectrometry (GC-MS). The bio-stimulatory effect of SG, SG + saliva and SG + semen on young boar for semen collection as well were employed to study bio-stimulatory effects on gilts and sows. Distilled water (DW) exposure was kept as control.

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African swine fever (ASF) has emerged as a threat to swine production worldwide. Evasion of host immunity by ASF virus (ASFV) is well understood. However, the role of ASFV in triggering oncogenesis is still unclear.

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Helicobacter species (spp.) is a gram-negative spiral-shaped motile bacterium that causes gastritis in pigs and also colonizes in the human stomach. The present study assessed the prevalence of Helicobacter spp.

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Background: The angiogenic cytokine vascular endothelial growth factor A (VEGFA) also exerts non-angiogenic effects on endocrine functionality of porcine luteal cells critical for progesterone (P) production.

Method And Results: The expression dynamics of VEGFA-FLT/KDR system were investigated using RT-qPCR during luteal stages and VEGFA gene knock out (KO) porcine luteal cells were generated using CRISPR/Cas9 technology. The downstream effects of VEGFA ablation were studied using RT-qPCR, Annexin V, MTT, ELISA for P estimation and scratch wound assay.

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Article Synopsis
  • * The mitochondrial genome of IWB was sequenced, revealing a length of 16,689 bp with 37 genes and unique signature sequences that could help differentiate IWB from IDP, including several polymorphic positions.
  • * Phylogenetic analysis indicated that IWB is genetically distinct from IDP, with the Doom pig breed being the closest relative, highlighting the utility of specific genetic markers for academic and forensic purposes.
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  • PRRS (Porcine Reproductive and Respiratory Syndrome) and ASF (African Swine Fever) are severe diseases affecting pigs globally, leading to high mortality rates among swine of all age groups, except young piglets.
  • Recent outbreaks in India revealed mixed infections of PRRSV and ASFV, confirmed through PCR testing and phylogenetic analysis, which connected the viruses to strains originating from China.
  • This study marks the first documentation of co-infection of ASFV and PRRSV in Indian pigs and highlights the risk of potential future outbreaks in the region.
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