Publications by authors named "Rao S"

Polymyalgia rheumatica (PMR) is characterized by stiffness and pain in the shoulders, hips and neck and presents most commonly in the eighth decade. It can coexist with giant cell arteritis and the two diseases may share some pathophysiological mechanisms. This narrative review considers present-day ideas about PMR in a historical context, from the first names and descriptions of this disease entity, via successive generations of classification criteria sets, and finally to implications for clinical diagnosis.

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Research on polymer matrix composites has become increasingly important in both the academic and industrial sectors. The study of polymer-natural fiber composites, known for their eco-friendly properties, has gained significance. Sugarcane bagasse fibers, abundant as discarded agricultural byproducts, offer improved properties such as density, rigidity, strength, and cost-effectiveness, enhancing sustainability.

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  • The study investigates the relationship between lesion formation during ablation for persistent atrial fibrillation (prAF) and various predictive metrics, specifically Ablation Index (AI), generator impedance drop (ID), and a new efficacy ratio (ER).
  • Analysis of 427 ablations showed that both ID and ER effectively predicted long-term arrhythmia-free survival, with specific cut-off values indicating lower risks of recurrence, while AI alone did not demonstrate the same predictive capability.
  • The findings suggest that ID and the new parameter ER are valuable for improving prognostication and understanding factors influencing long-term outcomes in prAF ablation, enhancing the efficacy of treatment strategies.
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Introduction: The deaf and hard of hearing (DHH) community experiences lower cancer screening rates than the general population. Cancer worry and fatalism can influence cancer screening, along with race, and the interaction of intrinsic factors with DHH health behavior needs to be investigated.

Objectives: The study examines the association of the intersection of race and hearing status with cancer worry and fatalism.

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  • Despite improvements in lung cancer therapies, cisplatin-based chemotherapy struggles with high levels of chemoresistance, necessitating the development of new strategies to enhance treatment effectiveness.
  • This study demonstrates that combining dihydroartemisinin (DHA) with cisplatin (DDP) can effectively induce ferroptosis in lung cancer cells, particularly when DHA is administered sequentially after DDP, thereby improving treatment outcomes.
  • The research highlights the importance of drug administration order and suggests that using DHA in conjunction with cisplatin may significantly enhance chemotherapy responses and overall survival for lung cancer patients.
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  • The study investigates the best duration and choice of antiplatelet therapy for patients with acute coronary syndrome after undergoing percutaneous coronary intervention.
  • A network meta-analysis was conducted on 32 trials with over 103,000 patients, comparing 12-month dual-antiplatelet therapy (DAPT) with several other strategies, including varying doses and durations.
  • The findings suggest that the combination of aspirin and ticagrelor for 3 months, followed by aspirin and clopidogrel, significantly lowers major adverse cardiovascular events compared to other DAPT strategies.
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Although previously considered rare, spontaneous coronary artery dissection (SCAD) is increasingly recognized as an important cause of myocardial infarction in young women. We present three unique cases of SCAD: A 46-year-old woman with a history of trigeminal neuralgia and anxiety presenting elevated troponin-I and chest pain. A 36-year-old woman with recent miscarriage presenting with diffuse T wave inversions and elevated troponin-I.

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Background: Myocardial bridging (MB) is a known congenital anomaly in which a segment of the coronary artery transverses from the epicardium through the myocardium. MB may clinically manifest as recurrent angina, acute coronary syndrome, ventricular dysrhythmia, and even sudden cardiac death. On electrocardiogram (EKG), MB can present with findings consistent with significant ST-segment changes.

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With the rapid development of Internet of Things (IoT) services, technologies that leverage multimedia computer communication for information sharing in embedded systems have become a research focus. To address the challenges of low spectral efficiency and poor network flexibility in multimedia computer communications, this paper proposes a resource allocation scheme based on parallel Convolutional Neural Network (CNN). The scheme optimizes the base station beamforming vector and the Reconfigurable Intelligent Surface (RIS) phase shifts to maximize the secure transmission rate for cellular users (CUs), while ensuring normal and secure communication for device-to-device (D2D) users.

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  • Regulatory T (Treg) cells are important for tissue repair by providing growth factors like amphiregulin (Areg), but studying Areg-producing Treg cells has been challenging due to isolation difficulties.
  • The researchers developed a new reporter mouse that allows detection of Areg expression in live cells and used it to analyze Treg cells in lung damage models, revealing distinct subpopulations.
  • Their analysis showed that Areg-producing Treg cells are favored during damage, with functional differences highlighted, and they identified a novel mechanism, 4-1BB agonism, that promotes tissue repair activity.
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  • The study investigates how daily rainfall characteristics—like intensity, duration, and frequency—affect mortality rates from all causes, cardiovascular issues, and respiratory problems across 34 countries from 1980 to 2020.
  • It utilizes a time series analysis to evaluate the association between daily mortality and rainfall events that occur at different return periods (one, two, and five years), including the effects of extreme rainfall with a 14-day lag.
  • The results indicate that extreme rainfall events (five-year return period) correlate with increased mortality rates, particularly for respiratory cases, while moderate rainfall shows protective effects, and the impact varies based on climate and vegetation.
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Background: Severe hypertension in young patients presents a significant diagnostic dilemma, and treatment can often be codified. Therefore, it is crucial to diagnose these cases for probable secondary hypertension. Common causes of secondary hypertension include large vessel vasculitis, renal artery stenosis, coarctation of the aorta, and endocrine disorders.

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  • Systemic sclerosis (SSc) is a rare disease that can affect different parts of the body, and this case is about a 51-year-old woman who had swelling in her eyelid.
  • Doctors found she had an enlarged lacrimal gland and inflammatory symptoms that didn’t get better with regular treatments, which led them to explore further possible conditions.
  • This case is important because it shows that SSc, specifically CREST syndrome, can have unusual symptoms like swelling in the eyes, and doctors need to think about different diagnoses when they see such signs.
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Pediatric Long COVID has been associated with a wide variety of symptoms, conditions, and organ systems, but distinct clinical presentations, or subphenotypes, are still being elucidated. In this exploratory analysis, we identified a cohort of pediatric (age <21) patients with evidence of Long COVID and no pre-existing complex chronic conditions using electronic health record data from 38 institutions and used an unsupervised machine learning-based approach to identify subphenotypes. Our method, an extension of the Phe2Vec algorithm, uses tens of thousands of clinical concepts from multiple domains to represent patients' clinical histories to then identify groups of patients with similar presentations.

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Context.—: Tumor contaminants were incidentally noted in frozen section margins of oropharyngeal squamous cell carcinoma.

Objective.

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The spatial organization of inositol 1,4,5-trisphosphate (IP)-evoked Ca signals underlies their versatility. Low stimulus intensities evoke Ca puffs, localized Ca signals arising from a few IP receptors (IPRs) within a cluster tethered beneath the plasma membrane. More intense stimulation evokes global Ca signals.

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Importance: Timely intervention for clinically deteriorating ward patients requires that care teams accurately diagnose and treat their underlying medical conditions. However, the most common diagnoses leading to deterioration and the relevant therapies provided are poorly characterized.

Objectives: We aimed to determine the diagnoses responsible for clinical deterioration, the relevant diagnostic tests ordered, and the treatments administered among high-risk ward patients using manual chart review.

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Neurodegenerative diseases have a profound impact on vision, leading to conditions such as glaucoma, optic neuropathy, and diabetic retinopathy, affecting millions worldwide. These diseases are characterized by the degeneration of retinal ganglion cells (RGCs), resulting in a progressive loss of visual acuity and field, with the threat of irreversible blindness. However, existing treatments, such as eye drops, direct injections, and laser surgeries face significant challenges due to limited efficacy and potential infection.

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Artificial Intelligence (AI) has revolutionized the biomedical sector in advanced diagnosis, treatment, and personalized medicine. While these AI-driven innovations promise vast benefits for patients and service providers, they also raise complex intellectual property (IP) challenges due to the inherent nature of AI technology. In this review, we discussed the multifaceted impact of AI on IP within the biomedical sector, exploring implications in areas like drug research and discovery, personalized medicine, and medical diagnostics.

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  • - The study focused on understanding community-acquired sepsis in lower middle-income countries like India, highlighting the influence of tropical infections and microbiology on the condition's causes and outcomes.
  • - Conducted from December 2018 to September 2022, the research involved over 1000 patients admitted to an ICU, revealing a median age of 55 years and significant mortality rates, particularly among those from rural areas and working in primary sectors.
  • - Findings indicated that sepsis cases often stemmed from tropical and viral infections, with notable resistance to common antibiotics, underscoring the need for targeted public health strategies in India and contributing to global sepsis research.
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  • Obesity negatively affects atrial remodeling and outcomes in patients with atrial fibrillation, with this study focusing on how body mass index (BMI) influences scar formation after catheter ablation.
  • Analysis of 811 patients revealed that higher baseline left atrial volume and more comorbidities were present in obese individuals, with Class 3 obesity showing the lowest rates of ablation-induced scar formation.
  • The study concluded that obese patients have less effective scar formation and more residual fibrosis following ablation compared to those with normal weight, indicating a significant impact of BMI on treatment outcomes.
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It is likely that the burden of breathlessness in low and middle-income countries (LMICs) is much higher than has been estimated using calculations of disease burden and expected prevalence of the symptom. However, most breathlessness research has been conducted in high-income countries and may not be relevant to LMICs. To address this issue, we convened an international breathlessness and global health workshop.

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Background: The optimal hemoglobin threshold to guide red blood cell (RBC) transfusion for patients with acute myocardial infarction (MI) and anemia is uncertain.

Objective: To estimate the efficacy of 4 individual hemoglobin thresholds (<10 g/dL [<100 g/L], <9 g/dL [<90 g/L], <8 g/dL [<80 g/L], and <7 g/dL [<70 g/L]) to guide transfusion in patients with acute MI and anemia.

Design: Prespecified secondary analysis of the MINT (Myocardial Ischemia and Transfusion) trial using target trial emulation methods.

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