Publications by authors named "Yatendra Singh"

(SW) Nyl is a lichenized fungi in the family Cladoniaceae producing characteristic secondary metabolites of interest. There are only limited chemical studies relating to the genus A chemical study of the lichen was conducted and their chemical constituents were elucidated by ultra-performance liquid chromatography-electrospray ionization/triple-quadrupole tandem-mass spectrometry analysis. It is the first time report of structure analysis of its metabolite by liquid chromatography-mass spectrometry/mass spectrometry.

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Orofacial injuries constitute the medico-legal cases reported, especially, in cases associated with road traffic accidents, assaults, and violence making it an emerging healthcare problem. Therefore, it is of interest to document data on the maxillofacial trauma and fractures among Indians. 150 subjects within the age of 15 to 60 years with maxillofacial fractures, detailed medical history including demographics, radiographs, medical history, associated injuries, and etiology of fractures were used for this study.

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has been used as a folk medicine to treat jaundice, throat infections, and skin problems. In the current study, the bone fracture-healing properties of a flavonoid-enriched fraction (Oxy50-60F) of were investigated in Swiss mice using a drill-hole injury model. Oxy50-60F (1 mg/kg/day, 5 mg/kg/day, and 10 mg/kg/day) was administered orally (from the next day) after a 0.

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Article Synopsis
  • - Oral cancer is increasingly common in low socioeconomic groups in India, primarily due to high rates of tobacco use, both smoking and smokeless.
  • - A study of 658 patients revealed that 78.8% used smokeless tobacco and 65.2% used smoking tobacco, with 39.8% showing signs of precancerous or cancerous lesions, especially in the buccal mucosa.
  • - The findings highlight the urgent need for more tobacco cessation programs and early detection methods to improve health outcomes for those at risk of oral cancer.
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Rationale: Cajanus scarabaeoides, belonging to the Fabaceae family, is an underutilized herb and traditionally used to treat several ailments. However, it is not well explored phytochemically. Therefore, mass spectrometry (MS)-based phytochemical analysis was carried out to investigate the bioactive ingredients of the herb.

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Introduction: Pathophysiological changes secondary to cirrhosis predispose patients of chronic liver disease to develop various electrolyte disturbances which have a significant impact on morbidity, mortality, and prognosis of these patients. This study aims to estimate the level of electrolyte disturbance and its association with the severity, complication, and outcome in chronic liver disease patients attending a hospital in the Kumaon region of Uttarakhand.

Methods: Our study was a hospital-based cross-sectional study conducted on 100 chronic liver disease patients at the OPD/IPD Department of Medicine, Dr.

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Ribosome biogenesis, a multi-step process involving transcription, modification, folding and processing of rRNA, is the major consumer of cellular energy. It involves sequential assembly of ribosomal proteins (RP)s via more than 200 ribogenesis factors. Unlike model organisms where transcription of rRNA and RP genes slows down during stress, in Entamoeba histolytica, pre-rRNA synthesis continues, and unprocessed pre-rRNA accumulates.

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Cigarette smoke (CS) induced emphysema and chronic pulmonary inflammation are major comorbidities of chronic obstructive pulmonary disease (COPD), a major cause of morbidity and mortality worldwide. CS exposure exacerbates pulmonary inflammation and compromises immunity to various infections. Aurintricarboxylic acid (ATA) is a polyanionic aromatic compound especially recognized for its anti-inflammatory, nucleic acid, and protein interaction inhibition properties.

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Introduction: Nerium oleander is an eminent source of structurally diverse cardiac glycosides (CGs), plays a prominent role in the treatment of heart failure, and inhibits the proliferation of cancer cell lines. CGs exert their cardiotonic action by binding to the extracellularly exposed recognition sites on Na /K -ATPase, an integral membrane protein that establishes the electrochemical gradient of Na and K ions across the plasma membrane.

Objective: We aimed to quantitatively determine CGs and their seasonal variation in leaf and stem samples of N.

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Background: Osteoporosis is an asymptomatic bone disorder leading to altered bone microarchitecture, mineralization and strength. Musa paradisiaca has been reported to have antioxidant and anti-inflammatory effects in various diseases. Its impact on postmenopausal osteoporosis has not been investigated yet.

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Ultraperformance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS) is an economical and indispensable tool in natural product research to investigate novel metabolites, biomarker discovery, chemical diversity exploration, and structure elucidation. In this study, the structural analysis of 38 naturally occurring cardiac glycosides (CGs) in various tissues of was achieved by the extensive use of mass spectrometry. The chemical diversity of CGs was described on the basis of characteristic MS/MS fragmentation patterns, accurate mass measurement, and published scientific information on CGs from .

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T-complex protein-1 (TCP1) is a chaperonin protein known to fold various proteins like actin and tubulin. In Leishmania donovani only one subunit of TCP1 that is gamma subunit (LdTCP1γ) has been functionally characterized. It not only performs ATP dependent protein folding but is also essential for survival and virulence.

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Emerging observations suggest that ribosomal proteins (RPs) play important extra-ribosomal roles in maintenance of cellular homeostasis. However, the mechanistic insights into these processes have not been extensively explored, especially in pathogenic bacteria. Here, we present our findings on potential extra-ribosomal functions of Mycobacterium tuberculosis (Mtb) RPs.

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Background: Promoter motifs in Entamoeba histolytica were earlier analysed using microarray data with lower dynamic range of gene expression. Additionally, previous transcriptomic studies did not provide information on the nature of highly transcribed genes, and downstream promoter motifs important for gene expression. To address these issues we generated RNA-Seq data and identified the high and low expressing genes, especially with respect to virulence potential.

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The 3'-5' exoribonuclease Rrp6 is a key enzyme in RNA homeostasis involved in processing and degradation of many stable RNA precursors, aberrant transcripts, and noncoding RNAs. We previously have shown that in the protozoan parasite , the 5'-external transcribed spacer fragment of pre-rRNA accumulates under serum starvation-induced growth stress. This fragment is a known target of degradation by Rrp6.

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Leishmaniasis is a major public health problem in various part of world; it has also emerged in new geographic areas and host populations. Visceral infection can remain subclinical or become symptomatic, with an acute, subacute or chronic course. Kala-azar, or visceral leishmaniasis (VL), presents as fever, pancytopenia and hypergammaglobulinaemia.

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