Publications by authors named "Katherine Ho"

Background: Weight management is included in the American Cancer Society/American Society of Clinical Oncology Breast Cancer Survivorship Care Guidelines for its clinical impact on breast cancer (BC) survivorship. Few studies have examined the impact of neighborhood-level factors associated with postdiagnosis weight change among Black BC survivors.

Methods: We recruited 100 Black female BC survivors to complete an online survey, including demographic, clinical characteristics, and lifestyle factors, between January 5, 2022 and August 18, 2022.

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Parkinson's disease is a neurodegenerative disease characterized by gait dysfunction in the advanced stages of the disease. The unilateral 6-hydroxydopamine toxin-induced model is the most studied animal model of Parkinson's disease, which reproduces gait dysfunction after >68% dopamine loss in the substantia nigra pars compacta. The extent to which the neural activity in hemi-parkinsonian rats correlates to gait dysfunction and dopaminergic cell loss is not clear.

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Article Synopsis
  • The study investigates the link between the Food Environment Index (FEI) and hypertension in Black women who are breast cancer survivors, a group notably affected by high hypertension rates and mortality risks compared to White women.
  • Data was collected from 100 Black female breast cancer survivors through an online survey, analyzing the relationship between their living conditions, income, age, and hypertension status using the 2023 FEI rankings.
  • Results indicated that lower FEI scores were significantly associated with higher hypertension rates, emphasizing the need for improved food accessibility and quality in underserved communities, especially for breast cancer survivors.
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Purpose: Food security, and reliable access to nutritious food, is essential for maintaining health yet remains elusive for many, including U.S. patients with breast cancer (BC).

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RNA-binding proteins (RBPs) with intrinsically disordered regions (IDRs) are linked to multiple human disorders, but their mechanisms of action remain unclear. Here, we report that one such protein, Nocte, is essential for Drosophila eye development by regulating a critical gene expression cascade at translational level. Knockout of nocte in flies leads to lethality, and its eye-specific depletion impairs eye size and morphology.

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Background: Racial and ethnic disparities in heart disease mortality by initial treatment type among breast cancer survivors have not been well described.

Methods: We included 739 557 women diagnosed with first primary invasive breast cancer between 2000 and 2017 (aged 18-84 years, received surgery, survived ≥1 year, followed through 2018) in the Surveillance, Epidemiology, and End Results-18 database. Standardized mortality ratios (SMRs; observed over expected) were calculated by race and ethnicity (non-Hispanic/Latina Asian American, Native Hawaiians, and other Pacific Islanders [AANHPI]; non-Hispanic/Latina Black [Black]; Hispanic/Latina [Latina]; and non-Hispanic/Latina White [White]) and initial treatment (surgery only; chemotherapy with surgery; chemotherapy, radiotherapy, with surgery; and radiotherapy with surgery) compared with the racial- and ethnic-matched general population, and by clinical characteristics.

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Background: There has been a rising trend in robotic surgery. Thus, there is demand for a robotic surgery curriculum (RSC) for training surgical trainees and practicing surgeons. There are limited data available about current curricular designs and the extent to which they have incorporated educational frameworks.

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Background: Disparities in cardiovascular disease mortality among breast cancer survivors are documented, but geographic factors by county-level socioeconomic status (SES) and rurality are not well described.

Methods: We analyzed 724 518 women diagnosed with localized or regional stage breast cancer between 2000 and 2017 within Surveillance, Epidemiology, and End Results Program-18 with follow-up until 2018. We calculated relative risks (RRs) of cardiovascular disease mortality using Poisson regression, accounting for age- and race-specific rates in the general population, according to county-level quintiles of SES (measured by Yost index), median income, and rurality at breast cancer diagnosis.

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Background: The main criticism of robotic surgery is longer operative time (OT). The aim of this study was to examine the variables that determine OT, the association between OT and 30-day outcomes, and the effect of the robotic approach in bariatric surgery.

Study Design: MBSAQIP data for 2016 to 2019 were queried.

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Objective: Recent observations in systemic juvenile idiopathic arthritis (JIA) suggest an increasing incidence of high-mortality interstitial lung disease often characterized by a variant of pulmonary alveolar proteinosis (PAP). Co-occurrence of macrophage activation syndrome (MAS) and PAP in systemic JIA suggests a shared pathology, but patients with lung disease associated with systemic JIA (designated SJIA-LD) also commonly experience features of drug reaction such as atypical rashes and eosinophilia. This study was undertaken to investigate immunopathology and identify biomarkers in systemic JIA, MAS, and SJIA-LD.

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Background: The adoption of minimally invasive pancreatoduodenectomy (MIPD) has increased over the last decade. Most of the data on perioperative and oncological outcomes derives from single-center high-volume hospitals. The impact of MIPD on oncological outcomes in a multicenter setting is poorly understood.

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Article Synopsis
  • Preoperative anxiety is common in children and can lead to negative behaviors after surgery, prompting a focus on interventions like Child Life preparation and new techniques such as virtual reality (VR) for anxiety reduction.
  • The study evaluated the feasibility and effectiveness of a VR experience called "Doc McStuffins: Doctor for a Day," designed to help alleviate children's anxiety before surgery at Children's Hospital Los Angeles.
  • Results showed strong patient satisfaction with the VR experience, and participants displayed a significant reduction in anxiety levels after engaging with the DocVR game, indicating its potential as a useful tool for improving the preoperative experience.
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Background: Oral anticoagulants are prescribed for stroke prophylaxis in patients with atrial fibrillation, which is the most common heart arrhythmia worldwide. The vitamin K antagonist (VKA) warfarin is a long-established anticoagulant. However, newer direct oral anticoagulants (DOACs) have been recently introduced as an alternative.

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Non-enzymatic RNA self-replication is integral to the emergence of the 'RNA World'. Despite considerable progress in non-enzymatic template copying, demonstrating a full replication cycle remains challenging due to the difficulty of separating the strands of the product duplex. Here, we report a prebiotically plausible approach to strand displacement synthesis in which short 'invader' oligonucleotides unwind an RNA duplex through a toehold/branch migration mechanism, allowing non-enzymatic primer extension on a template that was previously occupied by its complementary strand.

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I use data on the hospital networks offered by managed care health insurers to estimate the expected division of profits between insurers and providers. I include a simple profit-maximization framework and an additional effect: hospitals that can secure demand without contracting with all insurers (e.g.

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