Publications by authors named "Kumar Dharmendra"

Monocarboxylate transporter 4 (MCT-4) is involved in various metabolic processes which are crucial in maintaining cellular pH and energy metabolism, and thus influence the tumor microenvironment. The study is aimed to rationally design effective Small interfering RNA (siRNA) that can silence MCT-4. We utilized a comprehensive workflow integrating multiple tools such as siDirect version 2.

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Background: Achalasia is characterized by failure of relaxation of the lower oesophageal sphincter (LOS) and abnormal peristalsis during swallowing. The study aimed to observe the effects of intervention in three sub-types of achalasia and compare the intervention outcomes among the three sub-types.

Methods: Forty-one patients underwent Eckardt scoring for severity of achalasia, followed by high-resolution manometry (HRM).

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India is the third-largest energy consumer globally, heavily reliant on imported oil. Projections suggest India's energy consumption will double by 2050, posing challenges to energy security and leading to significant foreign currency outflows. The extensive use of fossil fuels increases carbon emissions, raising environmental and health concerns.

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  • - The SRY gene on the Y chromosome is crucial for sex determination in mammals, directing the development of testes instead of ovaries, and mutations in this gene can lead to significant changes in sexual traits.
  • - This study utilized CRISPR-Cas9 technology to target and edit the SRY gene in buffalo embryos, confirming efficient gene cleavage through experiments in buffalo fibroblasts and single-stage zygotes.
  • - Results indicated that mutations in the SRY gene led to increased expression of the female-specific gene Wnt4 and decreased expression of the male-specific gene SOX9, suggesting a shift towards female sex determination pathways, with implications for breeding strategies.
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Hypoxia inducible factors (HIFs) are heterodimeric proteins that belong to a small group of transcription factors, which mainly regulates transcription of genes under hypoxic conditions. Particularly, oxygen sensing subunit of HIF-1α is a predominant subtype that heterodimerizes with oxygen-independent HIF-1β subunit, to trigger the transcription of hypoxia responsive genes. Due to poor supply of blood and rapid division of cancerous cells, tumor microenvironment exhibits low oxygen condition and therefore increased levels of HIF-1α.

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  • The study evaluated the effectiveness of a dual surgical approach (anterior and posterior) for managing complex acetabular fractures involving both columns.
  • Postoperative results showed a high rate of anatomical reduction, with 76.19% of patients achieving optimal outcomes, and 83.33% reporting excellent or good functional results.
  • Patients reported significant improvements in physical function and quality of life indicators over an average follow-up of 2.8 years.
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  • - The article discusses the advancements in Photonic Crystal Fiber (PCF) biosensors, focusing on how changes in structural parameters like pitch and air hole diameter affect their performance in detecting biological substances.
  • - PCF-based surface plasmon resonance (SPR) biosensors can identify a variety of biological components, including glucose and pathogens in different samples like blood and urine.
  • - The study compares PCF biosensors with traditional biosensors, emphasizing their enhanced sensitivity and diverse applications in biosensing, supported by recent research findings.
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  • Genome editing is a powerful agricultural tool, but its application in buffaloes has faced challenges like long gestation and high costs.
  • The study focused on creating MSTN-edited buffaloes, highlighting the use of somatic cell nuclear transfer (SCNT) and CRISPR-EP techniques for effective genetic modification.
  • Results showed that zygotic electroporation outperformed SCNT in embryonic development and led to successful pregnancies with MSTN-edited buffaloes, indicating it may simplify genetic changes in large livestock.
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Introduction: Altered DNA methylation pattern in sperms has been associated with infertility in males demonstrating defective spermatogenesis or low semen quality. Vitamin B-12, by affecting 1-carbon metabolism pathways, might alter the DNA methylation pattern. We aimed to study the correlation of serum vitamin B12 levels with aberrant DNA methylation in infertile male patients.

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  • Our study tested whether adding alpha-linolenic acid (ALA) to liposomes with the cancer drug Paclitaxel (PTX) could improve how much the cells absorb the drug, reduce the required dosage, and lessen side effects.
  • We created and analyzed ALA-based liposomes, finding that while ALA slightly increased their size, it did not significantly affect how much PTX they could carry, and they released the drug steadily.
  • Results showed that ALA-PTX liposomes were taken up more by cells compared to regular PTX liposomes, resulting in better cancer-fighting efficacy, especially against MCF-7 cells, with more noticeable cancer cell death.
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Problem: Lipopolysaccharide (LPS) from gram-negative bacteria has reportedly been associated with infectious diseases like metritis, which has a substantial adverse effect on animal reproductive performance and causes serious financial losses for the dairy sector. The current work aimed to establish the impact of LPS on in vitro oocyte maturation and subsequent in vitro developmental competence of oocytes, as well as to investigate the explanatory molecular mechanism underlying this effect.

Method Of Study: Buffalo cumulus-oocyte complexes (COCs) were challenged with 0, 5, 10 and 20 µg/mL LPS during IVM followed by IVF and IVC.

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A unique extreme acute breathing syndrome emerged in China and spread rapidly globally due to a newly diagnosed human coronavirus and declared a pandemic. COVID-19 was formally named by WHO, and the Global Committee on Taxonomy referred to it as extreme Acute respiratory Syndrome Coronavirus-2 (SARS-CoV-2). Currently there is no efficient method to control the extent of SARS-CoV-2 other than social distancing and hygiene activities.

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Success of animal cloning is limited by oocyte quality, which is closely linked to reprogramming ability. The number of layers of cumulus cells is typically used to assess the quality of oocyte; a minimum of one-third of collected cumulus-oocyte complexes (COCs) are discarded as inferior oocytes because they have less cumulus cells. Melatonin, which has been recognised for its ability to sequester free radicals and perform multiple functions, has emerged as a potentially effective candidate for enhancing inferior oocytes quality and, consequently, embryo development competency.

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Introduction: Nearly 5-7% of patients undergoing surgical management of acetabular fractures develop surgical site infection (SSI) which is one of the most important factors affecting the hospital stay, success of procedure and overall patient satisfaction. Systematic studies to identify the risk factors and their control could help to reduce the surgical site infection rate considerably. The present study assessed the incidence and risk factors related with SSI in patients undergoing surgical management of acetabular fractures at our center.

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Background Although knee osteoarthritis (KOA) and osteoporosis (OP) manifest distinct pathophysiologies, they share numerous similarities. These health conditions are commonly found in older individuals, particularly among women. The objective of this study is to explore the expression of micro-RNA (miRNA) 122-5p (miR-122-5p) in people affected by both KOA and OP.

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Importance: Invasive fungal infections have recently become a public health problem, particularly in India following the second wave of coronavirus disease 2019 (COVID-19). India harbors the world's largest population of patients suffering from diabetes. What prompted the sudden spike of mucormycosis infections in the COVID pandemic needs investigation.

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Microplastics and nanoplastics (MNPs), are minute particles resulting from plastic fragmentation, have raised concerns due to their widespread presence in the environment. This study investigates sources and distribution of MNPs and their impact on plants, elucidating the intricate mechanisms of toxicity. Through a comprehensive analysis, it reveals that these tiny plastic particles infiltrate plant tissues, disrupting vital physiological processes.

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The capability of organic emitters to harvest triplet excitons a thermally activated delayed fluorescence (TADF) process has opened a new era in organic optoelectronics. Nevertheless, low brightness, and consequently an insufficient roll-off ratio, constitutes a bottleneck for their practical applications in the domain of organic light-emitting diodes (OLEDs). To address this formidable challenge, we developed a new design of desymmetrized naphthalimide (NMI) featuring an annulated indole with a set of auxiliary donors on its periphery.

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The chemoselective N-H insertion of unsymmetrical diamines into carbene is a longstanding challenge. A simple copper-catalyzed strategy for synthesizing -substituted piperazinones is described, employing easily accessible diazo compounds and 1,2-diamines. The reaction proceeded chemo-selective carbene insertion at the comparatively less nucleophilic amine, followed by instantaneous cyclization.

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Nanotechnology is a new scientific area that promotes unique concepts to comprehend the optimal mechanics of nanoparticles (NPs) in plants under heavy metal stress. The present investigation focuses on effects of synthetic and green synthesized titanium dioxide nanoparticles (TiO NPs and gTiO NPs) against Cr(VI). Green TiO NPs have been produced from plant leaf extract (Ricinus communis L.

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Background Objectives: High-altitude headache (HAH) and headache in acute mountain sickness (AMS) are common among lowlanders ascending to the high altitude and are often confused with one another. A pilot study was undertaken to analyze HAH and AMS cases in Indian lowlanders ascending to Leh city (3500 m) in western Himalayas.

Methods: A total number of 1228 Indian lowlanders, who ascended (fresh and re-inductees) by air and acclimatized, participated in this pilot study.

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