Publications by authors named "Swain B"

The complex signaling network within the breast tumor microenvironment is crucial for its growth, metastasis, angiogenesis, therapy escape, stem cell maintenance, and immunomodulation. An array of secretory factors and their receptors activate downstream signaling cascades regulating breast cancer progression and metastasis. Among various signaling pathways, the EGFR, ER, Notch, and Hedgehog signaling pathways have recently been identified as crucial in terms of breast cancer proliferation, survival, differentiation, maintenance of CSCs, and therapy failure.

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  • Annexins are a group of proteins involved in calcium-mediated signaling, playing a key role in how plants respond to various stresses.
  • This study focused on chickpeas (Cicer arietinum L.), identifying 13 annexin sequences in their genome and analyzing their structure and expression, revealing the presence of multiple exons and differential gene expression across different tissues.
  • The research suggests that these annexins may influence plant growth and development during normal and stressful conditions, providing insights for further studies on their functions.
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  • Recent advancements in regional anesthesia (RA) owe much to ultrasound technology, but human factors like fatigue and misidentification of anatomy can affect performance.
  • Integrating artificial intelligence (AI) and machine learning can enhance RA practices by improving anatomical recognition and providing real-time guidance during procedures.
  • While the future of AI in RA looks promising, challenges such as device malfunctions, data privacy issues, regulatory obstacles, and cost remain significant hurdles to widespread implementation.
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The rise in surface air temperature (SAT) in Venezuela, leading to the loss of all its glaciers, underscores the urgency of understanding human contributions to this phenomenon. This study investigates the impact of anthropogenic climate forcings on SAT across Venezuela, employing observational data, multi-model simulations, and optimal fingerprinting method. Anthropogenic forcings have driven a 0.

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  • - O-GlcNAcylation is a crucial protein modification in cells regulated by two enzymes, OGT and OGA, and is linked to intellectual disabilities based on recent research.
  • - A study using fruit flies with a specific mutation in the OGT enzyme revealed that low levels of O-GlcNAcylation cause issues with synapse formation and unstable sleep patterns.
  • - These negative effects can be partially reversed by adjusting OGA levels, indicating that a proper balance between OGT and OGA is vital for healthy nerve development and function.
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Background: Sulfonamide derivatives are well-reported hCA IX inhibitors; however, they inhibit all types of hCA without any selectivity, leading to severe adverse effects. Hence, developing a novel nonsulfonamide class of tumor-associated hCA IX inhibitors through non-classical inhibition may provide greater selectivity and better pharmacokinetics.

Objective: The objective of this study was to develop non-sulfonamide derivatives as potential human carbonic anhydrase (hCA) inhibitors and develop a new series of chromene-linked bis-indole derivatives.

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A series of four carboranyl-BODIPY conjugates (-CB-10, -CB-15, Me--CB-28, and Me--CB-35) and one phenylene-BODIPY conjugate (PB-20) were synthesized. The carboranyl-BODIPY conjugates incorporate boron clusters, specifically - and -carboranes, covalently linked to BODIPY fluorophores while the phenylene-BODIPY conjugate features a phenylene ring covalently linked to BODIPY fluorophore. The newly synthesized conjugates were characterized by H NMR, C NMR, B NMR, F NMR, FT-IR, and high-resolution mass spectral analysis.

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  • Eukaryotic translation initiation factor eIF4B is crucial for effective cap-dependent translation, is commonly overexpressed in cancer cells, and may play a role in stress granule formation.
  • Due to its high intrinsic disorder, eIF4B is often not seen in cryo-EM studies of translation complexes, with most observations limited to its structured RNA recognition motif domain.
  • Research incorporating experiments and simulations reveals that eIF4B's intrinsically disordered region (IDR) helps transition from monomers to larger dynamic oligomers, influenced by factors like ionic strength and molecular crowding, hinting at potential regulatory mechanisms affecting its behavior in cells.
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  • Mercury is a harmful atmospheric metal from both natural and human sources, and India is a major emitter, committed to reducing emissions as per the Minamata Convention.
  • The study used the GEOS-Chem model to analyze mercury distribution in India from 2013 to 2017, evaluating various emission inventories to ensure accurate simulations, showing a maximum bias of ±20%.
  • Findings indicate that wet deposition is highest in the Western Ghats and Himalayan foothills, with significant contributions from human activities, which, if removed from simulations, could reduce mercury deposition by approximately 21.9% to 33.5%.
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We report the experimental demonstration of an optical differentiation wavefront sensor (ODWS) based on binary pixelated linear and nonlinear amplitude filtering in the far-field. We trained and tested a convolutional neural network that reconstructs the spatial phase map from nonlinear-filter-based ODWS data for which an analytic reconstruction algorithm is not available. It shows accurate zonal retrieval over different magnitudes of wavefronts and on randomly shaped wavefronts.

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  • The study investigates how inputs from the brain, specifically histaminergic neurons from the hypothalamus, influence the processing of visual information in the mammalian retina.
  • Histamine application changes the activity of retinal ganglion cells, particularly enhancing responses in direction-selective cells to fast-moving objects, which aligns with increased arousal conditions.
  • The use of antihistamines shows that these brain-induced modifications also affect visual sensitivity in both mice and humans, suggesting a significant evolutionary role for the histaminergic system in vision.
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The tumor microenvironment (TME) is composed of various cellular components such as tumor cells, stromal cells including fibroblasts, adipocytes, mast cells, lymphatic vascular cells and infiltrating immune cells, macrophages, dendritic cells and lymphocytes. The intricate interplay between these cells influences tumor growth, metastasis and therapy failure. Significant advancements in breast cancer therapy have resulted in a substantial decrease in mortality.

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The work elucidates the importance of accurate Parkinson's disease classification within medical diagnostics and introduces a novel framework for achieving this goal. Specifically, the study focuses on enhancing disease identification accuracy utilizing boosting methods. A standout contribution of this work lies in the utilization of a light gradient boosting machine (LGBM) coupled with hyperparameter tuning through grid search optimization (GSO) on the Parkinson's disease dataset derived from speech recording signals.

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Pain in chronic pancreatitis (CP) is difficult to manage. Many patients suffer from inadequate pain relief, completely incapacitating them in their daily activities. Historically, despite their well-known adverse effects, opioids have been the pillar of treatment regimens in painful CP.

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Central venous catheter insertion in the internal jugular vein (IJV) is frequently performed in acute care settings, facilitated by its easy availability and increased use of ultrasound in healthcare settings. Despite the increased safety profile and insertion convenience, it has complications. Herein, we aim to inform readers about the existing literature on the plethora of complications with potentially disastrous consequences for patients undergoing IJV cannulation.

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Sleep and well-being have been intricately linked, and sleep hygiene is paramount for developing mental well-being and resilience. Although widespread, sleep disorders require elaborate polysomnography laboratory and patient-stay with sleep in unfamiliar environments. Current technologies have allowed various devices to diagnose sleep disorders at home.

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This technical report focuses on developing a do-it-yourself (DIY) model of a water phantom for training in ultrasound-guided needle insertion techniques. Ultrasound technology is becoming more widely used in perioperative and intensive care settings. However, accurate needle placement using ultrasound guidance necessitates strong spatial reasoning and hand-eye coordination.

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We introduce a novel method for fabricating perovskite solar modules using selective spin-coating on various Au/ITO patterned substrates. These patterns were engineered for two purposes: (1) to enhance selectivity of monolayers primarily self-assembling on the Au electrode, and (2) to enable seamless interconnection between cells through direct contact of the top electrode and the hydrophobic Au connection electrode. Utilizing SAMs-treated Au/ITO, we achieved sequential selective deposition of the electron transport layer (ETL) and the perovskite layer on the hydrophilic amino-terminated ITO, while the hole transport layer (HTL) was deposited on the hydrophobic CH-terminated Au connection electrodes.

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A new series of isatin-linked benzenesulfonamide derivatives (9a-w) were synthesized using the tail approach and assayed for their inhibitory potency against four different human carbonic anhydrase (hCA) isoforms, hCA I, II, IX, and XII. Most of these synthesized compounds exhibited interesting inhibition potency against isoforms hCA I, IX, and XII in the nanomolar range and by taking the standard drug acetazolamide. The most potent compounds in the case of hCA I were 9c (435.

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Introduction: Airway ultrasound has recently promised to be a valuable addition to preoperative airway assessment tools. This study was undertaken to determine the efficacy of ultrasound-guided measurement of soft tissue thickness (STT) at various levels of the anterior neck in predicting difficult airways in an eastern Indian population.

Objective:  The primary objective was to find out the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of anterior neck soft tissue thickness at the level of the hyoid (STT-Hyoid) and vocal cords (STT-VC), distance from the skin to the epiglottis midway (DSEM), and the ratio of the depth of the pre-epiglottic space (Pre-E) to the distance from the epiglottis to the mid-point of the vocal cords (E-VC).

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Organophosphorus (OP) insecticides are widely used for on-field pest control, constituting about 38% of global pesticide consumption. Insecticide tolerance has been recorded in microorganisms isolated from the contaminated soil. However, the cross-tolerance of laboratory-enriched cultures remains poorly understood.

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