Publications by authors named "Gaur A"

Alzheimer's disease (AD) is a prevalent neurological illness that affects over 80% of aged adults globally in cases of dementia. Although the exact pathophysiological causes of AD remain unclear, its pathogenesis is primarily driven by several distinct biochemical alterations: (i) the accumulation of toxic Aβ plaques, (ii) the hyperphosphorylation of tau proteins, (iii) oxidative stress resulting in cell death, and (iv) an imbalance between the two main neurotransmitters, glutamate and acetylcholine (ACh). Currently, there are very few medications available and no treatment.

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Background: Globally, diabetic nephropathy (DN) is the primary cause of chronic kidney disease. Currently, renal function is monitored indirectly using measures of serum creatinine, estimated glomerular filtration rate (eGFR), and proteinuria. Novel urinary biomarkers utilized in the early stages of DN have been described; these indicators can be used in the early identification of the disease, which is important for initiating treatment to halt or impediment the advance of diabetic nephropathy.

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This perspective article explores the importance of fostering interest in gastroenterology among medical students and addressing the barriers that deter them from pursuing careers in this specialty. The paper highlights the critical role of early exposure to research, specialized electives, and mentorship in encouraging students to consider gastroenterology as a career choice. Current challenges include limited access to specialized electives and research opportunities within UK medical schools, inadequate hands-on experience, and a perceived lack of stability and control over future training pathways.

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Background: Twice-yearly subcutaneous lenacapavir has been shown to be efficacious for prevention of HIV infection in cisgender women. The efficacy of lenacapavir for preexposure prophylaxis (PrEP) in cisgender men, transgender women, transgender men, and gender-nonbinary persons is unclear.

Methods: In this phase 3, double-blind, randomized, active-controlled trial, we randomly assigned participants in a 2:1 ratio to receive subcutaneous lenacapavir every 26 weeks or daily oral emtricitabine-tenofovir disoproxil fumarate (F/TDF).

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Psychotherapeutic developments in the management of anxiety disorders are evolving, with notable evidence in obsessive compulsive disorder (OCD). Third-wave therapies significantly contribute to the reduction in psychopathological symptoms and, thus, provide a positive turning point in the socio-occupational spectrum of the patient. One such third-wave approach is meta-cognitive therapy (MCT), which addresses cognitive attention syndrome (CAS) and directly prohibits ritualistic behavior, thereby decreasing the burden of symptoms.

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Background: Research evidence suggests the role of the vestibular system in cognitive functions like visuospatial memory, objective memory, spatial navigation, etc. Vestibular cortices send projection to the hippocampus and to the medial entorhinal cortex (MEC); the latter houses place cells, grid cells, and head direction cells, which play a major role in the formation of a cognitive map based on inputs from the vestibular apparatus. So, the present study aimed to assess cognitive functions in vestibular disorder patients.

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Introduction: COVID-19 was first reported in Wuhan, China, and subsequently spread worldwide. There were numerous restrictions on daily life activities, including lifestyles, social distancing, isolation and access to many forms of exercise and home confinement. All these activities have health benefits, as they enhance the immune system, which is the need of the hour during the COVID-19 pandemic.

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Assessment of immune correlates of severe COVID-19 has been hampered by the low numbers of severe cases in COVID-19 vaccine efficacy (VE) trials. We assess neutralizing and binding antibody levels at 4 weeks post-Ad26.COV2.

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Limiting global warming requires the effective implementation of energy mitigation measures by individual countries. However, the consequences of the timing of these efforts on the technical feasibility of adhering to cumulative carbon budgets-which determines future global warming-are underexplored. Moreover, existing national studies on carbon budgets either overlook integrated sectoral interactions, path dependencies, or comprehensive demand-side strategies.

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Supercapacitors (SCs) are well recognized for their excessive power output and cycling stability, but they often suffer from limited energy density. A promising solution to this challenge is the hybrid supercapattery (HSC) concept, which integrates two different electrodes with disparate charge-storage systems to provide energy and power. In this work, transition-metal phosphides (TMPs), specifically a Cu-doped cobalt phosphide wrapped with an N-doped porous carbon network (CCP-NPC), were used as positive electrode materials in HSCs.

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Purpose: To identify risk factors and perioperative complications and assess postoperative visual outcome in patients of white mature cataracts undergoing phacoemulsification surgery.

Methods: This cross-sectional study was conducted on 46 patients of white mature cataract undergoing phacoemulsification. Preoperatively, a detailed ocular examination was done, and anterior chamber depth (ACD) and lens thickness (LT) were measured on ultrasound biomicroscopy.

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The neurons of the melanocortin system regulate feeding and energy homeostasis through a combination of electrical and endocrine mechanisms. However, the molecular basis for this functional heterogeneity is poorly understood. Here, a voltage-gated potassium (Kv) channel named KCNB1 (alias Kv2.

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Background: Cancer poses a significant public health challenge in India, making it crucial to predict its future impact for effective healthcare planning. This study forecast cancer incidence, mortality, and disability-adjusted life years (DALYs) in India from 2022 to 2031.

Methods: We extracted age-standardized data on incidence, prevalence, DALYs, and mortality from 1990 to 2021 from the Global Burden of Disease (GBD) study.

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Direct formic acid fuel cells (DFAFCs) stand out for portable electronic devices owing to their ease of handling, abundant fuel availability, and high theoretical open circuit potential. However, the practical application of DFAFCs is hindered by the unsatisfactory performance of electrocatalysts for the sluggish anodic formic acid oxidation reaction (FAOR). Palladium (Pd) based nanomaterials have shown promise for FAOR due to their highly selective reaction mechanism, but maintaining high electrocatalytic durability remains challenging.

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  • Opioid drugs activate the µ-opioid receptor, mimicking natural pain-relieving peptides, but their use is limited due to side effects and the risk of opioid use disorder.
  • The study examined how different levels of arrestin-3 recruitment to the µ-opioid receptor in mice affected their drug-seeking behavior, revealing that mice without arrestin-3 showed more compulsive tendencies.
  • The findings suggest that opioids activating both G proteins and arrestin-3 could lead to decreased risk of abuse, indicating a potential pathway for improving pain management without increasing addiction risk.
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  • Microplastics have been detected in the gastrointestinal fluid of bottlenose dolphins in Sarasota Bay, indicating they might ingest these particles through contaminated fish.
  • A study analyzed muscle and GI tissues from 11 fish species that dolphins eat, finding microplastics in 82% of muscle samples and 97% of GI samples, with varying particle shapes and amounts based on the species and diet type.
  • Pinfish exhibited the highest concentration of microplastics, raising concerns about the impact on dolphins, wildlife health, and seafood safety due to widespread plastic contamination in estuarine environments.
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  • The study focused on pairing naporafenib, a pan-RAF inhibitor, with either rineterkib or trametinib to treat patients with non-small cell lung cancer (NSCLC) and certain genetic mutations.
  • Conducted on 216 patients, the research aimed to find safe and effective dosage levels, identifying recommended doses while monitoring for side effects and antitumor activity.
  • Results showed dose-limiting toxicities in 16% of patients, with some achieving partial responses; the study established specific dosages that were well-tolerated along with noticeable reductions in certain mRNA levels.
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Objectives: To establish normal reference values for commonly used ventricular indices - Anterior Horn Width (AHW), Ventricular Index (VI) and Thalamo-Occipital Distance (TOD)-against common variables including gestational age, birth weight and head circumference in Indian newborns.

Methods: This was a cross-sectional study. Cranial ultrasound was performed between post-natal days 3 to 7.

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  • The study classified wheat genotypes using support vector machines (SVMs) enhanced by optimization techniques and ensemble algorithms, analyzing data from 302 genotypes with 14 traits.
  • The radial basis function (RBF) kernel achieved the highest classification accuracy of 93.2%, which improved to 94.9% with weighted accuracy ensemble methods and optimization via particle swarm techniques.
  • These findings highlight the effectiveness of SVMs and optimization strategies in enhancing classification accuracy, demonstrating their potential applications in agricultural research and crop improvement.
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Background: Thermal threshold testing (TTT) is a simple non-invasive approach for diagnosing diabetic neuropathy earlier. Conventionally the TTT is done in all four limbs and at least 6 trials are done to obtain the mean threshold, which is time consuming.

Aim: We propose to assess the validity and reliability of reduced number of trials of TTT in the lower limbs.

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In this research, the visible light active performance of BiZnBO(BBZO) was significantly enhanced through the formation of a composite with few layer MoS. The resultant MoS@BBZO catalyst was employed in both photocatalysis and photodetector applications. Comprehensive structural and morphological analyses of the MoS@BBZO catalyst were conducted using x-ray diffraction, Raman spectroscopy, field-emission scanning electron microscopy (FE-SEM), and transmission electron microscopy.

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Mitochondrial dysfunction and cognitive impairment are widespread phenomena among the elderly, being crucial factors that contribute to neurodegenerative diseases. Nuclear factor erythroid 2-related factor 2 (Nrf2) is an important regulator of cellular defense systems, including that against oxidative stress. As such, increased Nrf2 activity may serve as a strategy to avert mitochondrial dysfunction and cognitive decline.

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Background: Patients with coronavirus disease 2019 (COVID-19) infection frequently have hypertension as a co-morbidity, which is linked to adverse outcomes. Antihypertensives may affect the outcome of COVID-19 infection.

Aim: To assess the effects of antihypertensive agents on the outcomes of COVID-19 infection.

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