Publications by authors named "Menon S"

Gastrointestinal (GI) cancers, such as gastric cancer, hepatocellular carcinoma, colorectal cancer, and esophageal cancer, pose a significant medical and economic burden globally, accounting for the majority of new cancer cases and deaths each year. A lack of knowledge about the molecular mechanisms of GI cancers is reflected in the low efficacy of treatment for individuals with late stage and recurring illness. Understanding the molecular pathways that promote the growth of GI cancers may open doors for their therapy.

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Aim Of The Study: The aim of the study is to investigate the effectiveness of virtual reality (VR) in mitigating pain associated with dental scaling procedures. Furthermore, the study aims to evaluate individuals' tolerance levels to VR during dental scaling sessions.

Materials And Methods: A randomised split-mouth design study was conducted on 29 systemically healthy adult patients aged 18 years and above.

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Objectives: Describe tofacitinib safety from an integrated analysis of randomized controlled trials (RCTs) in patients with ankylosing spondylitis (AS).

Method: Pooled data from Phase 2 (NCT01786668; 04/2013-03/2015)/Phase 3 (NCT03502616; 06/2018-08/2020) RCTs in AS patients were analyzed (3 overlapping cohorts): 16-week placebo-controlled (tofacitinib 5 mg twice daily [BID] [n = 185]; placebo [n = 187]); 48-week only-tofacitinib 5 mg BID (n = 316); 48-week all-tofacitinib (≥ 1 dose of tofacitinib 2, 5, or 10 mg BID; n = 420). Baseline 10-year atherosclerotic cardiovascular disease (ASCVD) risk was determined in patients without history of ASCVD (48-week cohorts).

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Background: Designing effective immunization programs requires a strong understanding of how the factors affecting vaccine uptake interplay. In this review, we analyze the relationships between the Behavioral and Social Drivers (BeSD) of routine immunization using qualitative systems mapping (QSM).

Methods: In this review, we analyzed 92 experimental and quasi-experimental impact evaluations (IEs) from 11 LMICs that were published between 2010 and 2020.

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The mis-folding and aggregation of intrinsically disordered proteins (IDPs) such as α-synuclein (αS) underlie the pathogenesis of various neurodegenerative disorders. However, targeting αS with small molecules faces challenges due to the lack of defined ligand-binding pockets in its disordered structure. Here, we implement a deep artificial neural network-based machine learning approach, which is able to statistically distinguish the fuzzy ensemble of conformational substates of αS in neat water from those in aqueous fasudil (small molecule of interest) solution.

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Background: Continuous renal replacement therapy (CRRT) is the favored renal replacement therapy in critically ill patients. Predicting clinical outcomes for CRRT patients is difficult due to population heterogeneity, varying clinical practices, and limited sample sizes.

Objective: We aimed to predict survival to ICUs and hospital discharge in children and young adults receiving CRRT using machine learning (ML) techniques.

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This study examines the potential of small interfering RNA (siRNA) as a therapeutic agent for cancer targeting long non-coding RNAs (lncRNAs). The article begins with an analysis of the structure and biogenesis of lncRNA. It explains the diverse functions of lncRNAs in cancer, establishing a foundation for assessing approaches to inhibit these molecules.

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Background: The management of Type III sphincter of Oddi dysfunction or functional biliary pain (FBP) is challenging. A strategy of intermittent intrasphincteric botulinum toxin (Botox) injections into the sphincter of Oddi can alleviate pancreaticobiliary pain. In patients who lose response to intermittent Botox injections, endoscopic biliary sphincterotomy (ES) could potentially reset pain facilitating ongoing management of symptoms.

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Cardiovascular disorders (CVDs) are a major global health concern, but their underlying molecular mechanisms are not fully understood. Recent research highlights the role of long noncoding RNAs (lncRNAs), particularly ANRIL, in cardiovascular development and disease. ANRIL, located in the human genome's 9p21 region, significantly regulates cardiovascular pathogenesis.

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Introduction: Extraction wounds in oral cavity are usually self-healing. But, this wound healing is hindered because of factors such as saliva, blood, plaque, food debris which causes post-operative infection and pain due to microbial colonization. Placement of periodontal dressings such as zinc oxide eugenol or methyl methacrylate polymer would provide protection up to some extent despite leaving the site without any dressing, but it has disadvantage of difficulty in removing.

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Using first-principles theoretical analysis, we demonstrate the spin-polarized anomalous Hall conductivity (AHC) response of a 2D vdW heterostructure of graphene and ferromagnetic CrTe that can be controlled with a perpendicular electric field . The origins of AHC and linear magnetoelectric responses are traced to (a) the transfer of electronic charge from graphene to ferromagnetic CrTe causing an out-of-plane electric polarization = 1.69 μC cm and (b) the crystal field and spin-split Dirac points of graphene.

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Article Synopsis
  • Breast cancer has become the most common cancer worldwide, with metastatic cancer being the leading cause of death related to this disease, prompting the development of early detection methods using non-invasive biomarkers.
  • Exosomes, which are tiny vesicles released by cancer cells, play a crucial role in transmitting signals and contain noncoding RNAs (ncRNAs) like miRNAs, lncRNAs, and circRNAs that influence various aspects of breast cancer progression, including growth, metastasis, and immune responses.
  • The study examines the regulatory mechanisms of exosomes in breast cancer and aims to enhance understanding of the functions of exosomal ncRNAs to identify potential biomarkers and improve treatment strategies.
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Introduction: Differentiating pheochromocytomas from other adrenal masses based on computed tomography (CT) characteristics remains challenging, particularly in lipid-poor lesions with variable washout patterns. This study evaluated CT features for distinguishing pheochromocytomas in good and poor washout subcohorts.

Methods: We prospectively analyzed 72 patients with unilateral lipid-poor adrenal masses.

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Exosomes are extracellular vesicles with a diameter ranging from 40 to 160 nm. They are produced by hepatocytes, cholangiocytes, hepatic stellate cells (HSCs), liver sinusoidal endothelial cells (LSECs) and Kupffer cells in liver tissue. The secretion of exosomes might vary in quantity and composition in reaction to multiple triggers and various stages of disease.

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Background: Contrary to traditional notions of emerging adulthood as a period free from parental pressures, the prolonged transition to adulthood in contemporary society implies that parental influence remains a significant factor in the lives of emerging adults. This presents a potential challenge to emerging adults, as navigating independence while managing parental expectations can result in adverse psychological outcomes. The present study examined the relationship between perceived parental expectations and fear of negative evaluation (FNE) and the mediating role of maladaptive perfectionism.

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Article Synopsis
  • This study investigates how exposure to metals during pregnancy affects the liver function of fetuses, focusing on umbilical liver enzymes.
  • Analyzing data from 450 mother-newborn pairs, researchers found a connection between higher levels of certain metals in maternal and cord blood and increased levels of liver enzymes like GGT, ALP, ALT, and AST in newborns.
  • Specific metals, such as arsenic and lead, showed strong positive relationships with liver enzyme levels, while zinc had an inverse effect, indicating that prenatal exposure to certain metals may negatively impact fetal liver function.
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Background: A growing body of literature classifies autism spectrum disorder (ASD) as a heterogeneous, complex neurodevelopmental disorder that often is identified prior to three years of age. We aim to provide a narrative review of key structural and functional properties that differentiate the neuroimaging profile of autistic youth from their typically developing (TD) peers across different neuroimaging modalities.

Methods: Relevant studies were identified by searching for key terms in PubMed, with the most recent search conducted on September 1, 2023.

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Tofacitinib is an oral Janus kinase inhibitor for the treatment of psoriatic arthritis (PsA). These post hoc exposure-response (E-R) analyses of pooled data from two Phase 3 studies (NCT01877668 and NCT01882439) characterized the relationships between tofacitinib exposure and efficacy (American College of Rheumatology [ACR] criteria), and changes in hemoglobin (Hgb) in patients with PsA. Efficacy data for the proportion of patients receiving tofacitinib 5 or 10 mg twice daily, or placebo, achieving ACR ≥20%, ≥50%, or ≥70% response criteria (ACR20, ACR50, and ACR70, respectively) at Month 3, were modeled jointly using a four-category ordered categorical exposure-response model (ACR20 non-responder, ACR20 responder but not ACR50 responder, ACR50 responder but not ACR70 responder, and ACR70 responder).

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