Publications by authors named "Dharmendra Kumar"

Background: Chilli powder is a widely consumed spice, however during cultivation of chilli crops are often subjected to pesticide treatments to control pests and diseases. Thus, monitoring pesticide residues in such matrices is crucial for food safety and to comply with national as well as international regulations for export/import purposes. However, accurate analysis of pesticide residue in chilli powder is challenging due to its complex nature.

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The sustainable replacement of conventional fossil fuels with bioethanol produced from starchy crops has garnered significant interest. This review paper provides current perspectives in the field and an overview of advanced technologies, emphasising the importance of efficient and environmentally friendly processes. Starchy crops such as wheat, barley, cassava, potato, and maize possess high starch content, which serves as a key feedstock for bioethanol production.

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For cattle bulls, only ejaculates with a sperm concentration of 500 million/mL or higher are selected for sperm cryopreservation. There is no established ejaculate's minimum sperm concentration threshold for buffalo semen cryopreservation. Therefore, the first objective of the study was to determine the percentage of ejaculates of buffalo bulls having concentrations lower than 500 million/mL, the percentage of ejaculates suitable for cryopreservation across different concentrations of donated ejaculates, and to estimate the impact of ejaculate concentrations on the production of semen doses.

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The study aimed to separate X and Y buffalo sperm using R848, a TLR7/8 agonist. Semen from three Murrah buffalo bulls were collected and divided into aliquots for swim-up in modified human tubal fluid (mHTF) medium with varying concentrations of R848 (0, 0.03, 0.

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Background: The patella plays a crucial role in the extensor mechanism of the knee joint, significantly enhancing the efficiency of the quadriceps muscle. The alignment and height of the patella are critical for maintaining knee joint functionality and preventing knee-related disorders. The Patellotrochlear Index (PTI) is a novel measurement method that provides a more accurate assessment of patellar height and its relationship with the femoral trochlea, particularly in the North Indian population.

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Background: Posterior wall acetabular fractures with marginal impaction pose significant challenges, mainly because of the risk of joint incongruity and the potential for developing post-traumatic arthritis. Restoration of the articular surface and stability are essential to achieve good outcomes. This study investigates the surgical outcomes of posterior wall acetabular fractures with marginal impaction using the Kocher-Langenbeck (KL) approach, buttress plating, and greater trochanter autografting.

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Background: Cancer is a complex disease marked by changes in the levels and functions of key cellular proteins, including oncogenes and tumor suppressors. Proteomics technology enables the identification of crucial protein targets and signaling pathways involved in cancer cell proliferation and metastasis. Various proteomics techniques have been employed to investigate the molecular mechanisms of cancer, aiding in the confirmation and characterization of heritable disorders.

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In the modern world, Polycystic Ovary Syndrome (PCOS) is thought to be the most prevalent endocrine condition affecting women. Compared to their normal counterparts, PCOS patients have higher rates of morbidity and death because they are more susceptible to these anomalies from an early age. Cardiovascular disease (CVD) and PCOS are prevalent in women.

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In India, it is estimated that 10-24 million people are living with active HCV infection, with a seroprevalence of 0.09% to 2.02% among the healthy population.

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Despite having strong pedigree records, passing breeding soundness evaluations, and receiving appropriate management and nutrition, some breeding bulls consistently underperform in similar environmental conditions where other bulls thrive. These underperforming bulls are economically unsuitable for semen stations that produce semen doses. Our study aims to predict the performance of breeding bulls based on hair cortisol and testosterone concentrations.

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Introduction: Argemone mexicana, commonly known as the Mexican poppy, has earned significant recognition in the traditional healing systems of the Eastern Indian region, where it has been used for centuries as a folk remedy for a variety of diseases. The study was based on search or identified through Pubmed, Google Scholar, Science Direct, etc. Meta-analysis: Phytochemical analysis has demonstrated that the alkaloids present in A.

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Aim: The Aim of the study is to retrospectively analyse intraoperative complications in acetabular fractures treated via the Stoppa approach, identify their frequency and nature, and define potential risk factors, in addition to evaluating clinical outcomes.

Methods: This retrospective cohort study included a total of 136 acetabulum fracture cases (aged 16 to 82 years) that were managed using Stoppa approach. Records related with age, sex, mode of injury, body mass index, history and type of associated injury and time gap between injury and surgery were noted.

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In the present study, we aim to identify a potential drug candidate that targets the Monocarboxylate Transporter-4 (MCT-4) protein. Syrosingopine (SRY) is a well-established inhibitor of lactate transport through MCT-4. We screened 2,11,192 potential leads through ZINC database, which were atleast 50 % structurally similar with SYR.

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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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Article Synopsis
  • - 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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