Publications by authors named "Aditi Nayak"

Recent research has discovered a connection between the AAA+ ATPase PSMC4 (Proteasome 26S Subunit, ATPase 4) and several forms of cancer. However, a detailed analysis of the oncogenic potential of PSMC4 was elusive. In this study, we anticipate PSMC4's potential as a cancer biomarker.

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Importance: The advanced ambulatory heart failure (HF) population comprises patients who have progressed beyond the pillars of recommended stage C HF therapies but can still find meaningful life-years ahead. Although these patients are commonly encountered in practice, national databases selectively capture the small groups accepted for heart transplant listing or left ventricular assist devices. The epidemiology, trajectories, and therapies for other ambulatory patients with advanced HF are poorly understood.

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Background: Statistical risk models for durable left ventricular assist device (LVAD) implantation inform candidate selection, quality improvement, and evaluation of provider performance. This study developed a 90-day mortality risk model using The Society of Thoracic Surgeons National Intermacs Database (STS Intermacs).

Methods: STS Intermacs was queried for primary durable LVAD implants from January 2019 to September 2023.

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The overuse of antibiotics has led to the global dissemination of , an increasingly challenging nosocomial pathogen. This review explores the medical significance along with the diverse resistance ability of . Intensive care units (ICUs) serve as a breeding ground for , as these settings harbour vulnerable patients and facilitate the spread of opportunistic microorganisms.

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The 15th Annual Report from The Society of Thoracic Surgeons Interagency Registry for Mechanically Assisted Circulatory Support includes 29,634 continuous-flow left ventricular assist devices from the 10-year period between 2014 and 2024. The outcomes reported here demonstrate continued improved survival in the current era of fully magnetically levitated devices, with a significantly higher 1-year (85.7% vs 78.

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Colorectal cancer (CRC) continues to be a global health concern, necessitating further research into its complex biology and innovative treatment approaches. The etiology, pathogenesis, diagnosis, and treatment of colorectal cancer are summarized in this thorough review along with recent developments. The multifactorial nature of colorectal cancer is examined, including genetic predispositions, environmental factors, and lifestyle decisions.

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Multidrug-resistant pathogens pose an earnest risk to human health. Therefore, new antibiotics need to be developed quickly. Most of the antibiotics we use today are derived from secondary metabolites, which are produced by plants.

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Article Synopsis
  • Hemocompatibility issues post-left ventricular assist device (LVAD) implantation lead to complications like gastrointestinal bleeding, stroke, or death, but predicting these risks is challenging.* -
  • A secondary analysis of the MOMENTUM 3 trial utilized a multistate model to evaluate 2,056 LVAD patients, revealing a 2-year incidence rate of 25.6% for gastrointestinal bleeding, 6.0% for stroke, and 12.3% for death.* -
  • The multistate model, which includes 39 variables, provides a tool for stratifying risk and predicting adverse events in ambulatory LVAD patients, potentially improving clinical decision-making.*
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Article Synopsis
  • - The field of durable mechanical circulatory support (MCS) has made significant strides in enhancing patient longevity and quality of life for those suffering from advanced heart failure, yet there is still room for improvement in several areas.
  • - Key areas for development include advancements in pump design, minimally invasive surgical techniques, and better overall patient care before and after surgery, with an emphasis on creating devices that are fully implantable and require less blood-thinning medication.
  • - The review discusses emerging technologies currently in late preclinical or early clinical phases, urging collaboration among clinicians, engineers, and investors to continue advancing MCS innovations.
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Plasma metabolomics profiling is an emerging methodology to identify metabolic pathways underlying cardiovascular health (CVH). The objective of this study was to define metabolomic profiles underlying CVH in a cohort of Black adults, a population that is understudied but suffers from disparate levels of CVD risk factors. The Morehouse-Emory Cardiovascular (MECA) Center for Health Equity study cohort consisted of 375 Black adults (age 53 ± 10, 39% male) without known CVD.

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Background: Gender and racial disparities exist after left ventricular assist device (LVAD) implantation. Compared with older devices, the HeartMate 3 (HM3) (Abbott Cardiovascular) has demonstrated improved survival. Whether HM3 differentially improves outcomes by gender or race and ethnic groups is unknown.

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Article Synopsis
  • The study analyzed data from the INTERMACS database to see how the type of cancer (solid vs. hematologic) affects the outcomes of patients who received left ventricular assist devices (LVADs) between 2007 and 2017.
  • Out of 14,799 LVAD recipients, 909 had a cancer history, with solid tumors linked to higher mortality and complications like major bleeding and pump thrombosis, while hematologic cancers were associated with more major infections.
  • The findings indicate that patients with solid tumors were less likely to receive heart transplants compared to those without cancer, highlighting the need for better strategies to improve survival and outcomes for cancer survivors receiving LVADs.
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Background: In advanced heart failure patients implanted with a fully magnetically levitated HeartMate 3 (HM3, Abbott) left ventricular assist device (LVAD), it is unknown how preimplant factors and postimplant index hospitalization events influence 5-year mortality in those able to be discharged.

Objectives: The goal was to identify risk predictors of mortality through 5 years among HM3 LVAD recipients conditional on discharge from index hospitalization in the MOMENTUM 3 pivotal trial.

Methods: This analysis evaluated 485 of 515 (94%) patients discharged after implantation of the HM3 LVAD.

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The win ratio was introduced into cardiovascular trials as a potentially better way of analyzing composite endpoints to account for the hierarchy of clinical significance of their components and to facilitate the inclusion of recurrent events. The basic concept of the win ratio is to define a hierarchy of clinical importance within the components of the composite outcome, form all possible pairs by comparing every subject in the treatment group with every subject in the control group, and then evaluate each pair for the occurrence of the components of the composite outcome in descending order of importance, starting at the most important and progressing down the hierarchy if the outcome does not result in a win in either pair until pairs are tied for the outcome after exhaustion of all components. Although the win ratio offers a novel method of depiction of outcomes in clinical trials, its advantages may be counterbalanced by several fallacies (such as ignoring ties and weighting each hierarchal component equally) and challenges in appropriate clinical interpretation (establishing clinical meaningfulness of the observed effect size).

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Nanosensors are nanoscale devices that measure physical attributes and convert these signals into analyzable information. In preparation, for the impending reality of nanosensors in clinical practice, we confront important questions regarding the evidence supporting widespread device use. Our objectives are to demonstrate the value and implications for new nanosensors as they relate to the next phase of remote patient monitoring and to apply lessons learned from digital health devices through real-world examples.

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The burden of heart failure remains substantial worldwide, and heart failure with reduced ejection fraction (HFrEF) affects approximately half of this population. Despite this global prevalence of HFrEF, the majority of contemporary clinical trials in HFrEF have underenrolled individuals from minoritized sex, gender, race, ethnicity, and socioeconomic groups. Moreover, significant disparities in access to HFrEF treatment and outcomes exist across these same strata.

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Background: Low quantities of circulating progenitor cells (CPCs), specifically CD34+ populations, reflect impairment of intrinsic regenerative capacity. This study investigates the relationship between subsets of CPCs and adverse outcomes.

Methods: 1366 individuals undergoing angiography for evaluation of coronary artery disease (CAD) were enrolled into the Emory Cardiovascular Biobank.

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Background: Clinical trials inform on average efficacy, but individualized risk assessments for outcome prediction are important in guiding treatment implementation.

Objectives: The authors developed and validated a patient-specific risk score to predict survival at 1 and 2 years after HeartMate 3 (HM3) left ventricular assist device (LVAD) implantation.

Methods: The MOMENTUM 3 (Multicenter Study of MagLev Technology in Patients Undergoing Mechanical Circulatory Support Therapy with HeartMate 3) trial includes 2,200 HM3 LVAD patients in the pivotal trial and Continued Access Protocol study (2014-2018).

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Background: The COVID-19 pandemic has disproportionately affected low-income and racial/ethnic minority populations in the United States. However, it is unknown whether hospitalized patients with COVID-19 from socially vulnerable communities experience higher rates of death and/or major adverse cardiovascular events (MACEs). Thus, we evaluated the association between county-level social vulnerability and in-hospital mortality and MACE in a national cohort of hospitalized COVID-19 patients.

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