Publications by authors named "Krull K"

Healthcare delivery exposes care providers and leaders to suffering, loss, moral dilemmas, conflicts, and overwhelm. The cumulative effects of workplace stress and trauma have organizational impacts (turnover, cynicism, and conflict), personal impacts (burnout, mental illness, and traumatic stress), and patient care impacts (reduced empathy, poor communication, and errors). Organizations have attempted to address these issues largely through individual wellness offerings.

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Background: Survival rates from childhood cancer continue to increase, with an ongoing interest in long-term survivorship. Although infertility and gonadal failure are well recognized in Hodgkin lymphoma (HL) survivors, sexual dysfunction is less studied. The objective of this study was to compare the prevalence of sexual dysfunction in HL survivors with that in matched community controls.

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Article Synopsis
  • Many adult survivors of childhood cancer worry about their cancer coming back, which can make them feel really stressed and affect their everyday life.
  • A study looked at how common this fear is among people who survived childhood cancer and what makes it worse.
  • They found that about 17% of these survivors have a strong fear of cancer returning and that this fear is linked to being unemployed and having certain health issues.
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  • The study examines patient activation, which refers to the willingness of individuals to manage their health, focusing on childhood cancer survivors and its effect on psychological outcomes and health behaviors.
  • Among 2,708 childhood cancer survivors, lower levels of activation were observed compared to the control group, with survivors demonstrating more instances of low activation and fewer high activation levels.
  • The results indicate that higher activation is linked to better mental health, quality of life, and adherence to physical activity guidelines, suggesting that enhancing patient activation could provide significant benefits for survivors' overall well-being.
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  • A study examined the prevalence of fine motor impairment among adult survivors of childhood acute lymphoblastic leukemia (ALL) and its impact on their lives after treatment.
  • About 33.6% of survivors showed fine motor impairment, particularly those who had received cranial radiation, with males and those with lower IQ scores being at higher risk.
  • Fine motor issues were linked to lower educational attainment and less social independence, suggesting that these impairments can significantly affect survivors' ability to lead fulfilling lives.
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Proteome analysis by data-independent acquisition (DIA) has become a powerful approach to obtain deep proteome coverage, and has gained recent traction for label-free analysis of single cells. However, optimal experimental design for DIA-based single-cell proteomics has not been fully explored, and performance metrics of subsequent data analysis tools remain to be evaluated. Therefore, we here formalize and comprehensively evaluate a DIA data analysis strategy that exploits the co-analysis of low-input samples with a so-called matching enhancer (ME) of higher input, to increase sensitivity, proteome coverage, and data completeness.

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Purpose: Perceived cancer impact (PCI) is the degree to which one feels cancer has impacted one's life. It is unknown if PCI is associated with health behaviors. The aim of this study is to determine associations between PCI and health behaviors in childhood cancer survivors.

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Background: Premature aging is a significant concern in adult survivors of childhood cancer as they develop aging-related conditions at a younger age than their peers with no history of childhood cancer. Although modifiable lifestyle factors, such as diet, are postulated to affect aging process, supporting evidence is sparse.

Methods: We examined if the consumption of sugar and sugar-sweetened beverages was related to premature aging in 3322 adult survivors of childhood cancer in the St.

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Background: Survivors of childhood central nervous system (CNS) tumors can develop motor and sensory impairment from their cancer and treatment history. We estimated the prevalence of motor and sensory impairment in survivors compared with controls through clinical assessment and identified associated treatment exposures and functional, quality of life (QOL), and social outcomes.

Methods: Survivors of childhood CNS tumors from the St.

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Background: Treatment of childhood medulloblastoma has evolved to reduce neurotoxicity while improving survival. However, the impact of evolving therapies on late neurocognitive outcomes and adult functional independence remains unknown.

Methods: Adult survivors of childhood medulloblastoma (n = 505; median [minimum-maximum] age, 29 [18-46] years) and sibling controls (n = 727; 32 [18-58] years) from the Childhood Cancer Survivor Study completed surveys assessing neurocognitive problems and chronic health conditions (CHCs).

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Importance: Current research in epigenetic age acceleration (EAA) is limited to non-Hispanic White individuals. It is imperative to improve inclusivity by considering racial and ethnic minorities in EAA research.

Objective: To compare non-Hispanic Black with non-Hispanic White survivors of childhood cancer by examining the associations of EAA with cancer treatment exposures, potential racial and ethnic disparity in EAA, and mediating roles of social determinants of health (SDOH).

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Background: Neurocognitive impairments are sequelae of childhood cancer treatment, however little guidance is given to clinicians on common phenotypes of impairment or modifiable risk factors that could lead to personalized interventions in survivorship.

Methods: Standardized clinical testing of neurocognitive function was conducted in 2958 (74.1%) eligible survivors, who were at least 5 years postdiagnosis and aged older than 18 years, and 477 community controls.

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Background: The impact of adverse childhood experiences (ACE, e.g., abuse, neglect, and/or household dysfunction experienced before the age of 18) and resilience on risk for cardiovascular disease (CVD) has not previously been investigated in adult survivors of childhood cancer.

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Importance: Employment is an important factor in quality of life and provides social and economic support. Longitudinal data on employment and associations with chronic health conditions for adult survivors of childhood cancer are lacking.

Objective: To evaluate longitudinal trends in employment among survivors of childhood cancer.

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Importance: Symptom burden and its characteristics among survivors of pediatric cancers aged 8 to 18 years remain understudied.

Objective: To examine the prevalence of symptom burden among young childhood cancer survivors and identify associations with sociodemographic, clinical, and psychological resilience skills, and health-related quality of life (HRQOL).

Design, Setting, And Participants: A cross-sectional analysis using data collected from November 1, 2017, to January 31, 2019, in a survivorship clinic at a US-based comprehensive cancer center was conducted.

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Purpose: Many children treated for ALL develop long-term neurocognitive impairments. Increased risk of these impairments is associated with treatment and demographic factors. Exposure to anesthesia is an additional possible risk factor.

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Background: Survivors of pediatric acute lymphoblastic leukemia (ALL) exhibit abnormal neurocognitive outcomes that are possibly due to exposures to neurotoxic chemotherapy agents. This study aimed to determine the feasibility of characterizing long-term neuroanatomical changes with neuroimaging in a preclinical model of treatment for ALL.

Methods: Female mice (C57BL/6) were randomly assigned to a saline control group (n=10) or a treatment group (n=10) that received intrathecal methotrexate and oral dexamethasone (IT-MTX + DEX).

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Cancer survivors are at a high risk for treatment-related late effects, particularly neurocognitive impairment in the attention and executive function domains. These can be compounded in pediatric populations still undergoing neural development, which has increased interest in survivorship studies and neurorehabilitation approaches to mitigate these effects. Cognitive training regimens have shown promise as a therapeutic intervention for improving cognitive function.

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Importance: Children undergoing treatment for leukemia are at increased risk of severe sepsis, a dysregulated immune response to infection leading to acute organ dysfunction. As cancer survivors, they face a high burden of long-term adverse effects. The association between sepsis during anticancer therapy and long-term organ dysfunction in adult survivors of childhood cancer has not been examined.

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Objective: Childhood cancer survivors are at risk for hypogonadism. The impact of hypogonadism on neurocognitive impairment and emotional distress in the non-cancer population has been shown; however, the relationship among the childhood cancer survivor population is unknown. We aimed to evaluate the contribution of hypogonadism to neurocognitive impairment and emotional distress among survivors.

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Background: Childhood cancer survivors are at high risk for morbidity and mortality and poor patient-reported outcomes, typically health-related quality of life (HRQOL). However, associations between DNA methylation-based aging biomarkers and HRQOL have not been evaluated.

Methods: DNA methylation was generated with Infinium EPIC BeadChip on blood-derived DNA (median for age at blood draw = 34.

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Pediatric glioma therapy has evolved to delay or eliminate radiation for low-grade tumors. This study examined these temporal changes in therapy with long-term outcomes in adult survivors of childhood glioma. Among 2,501 5-year survivors of glioma in the Childhood Cancer Survivor Study diagnosed 1970-1999, exposure to radiation decreased over time.

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Background: Germline cancer genetic testing has become a standard evidence-based practice, with established risk reduction and screening guidelines for genetic carriers. Access to genetic services is limited in many places, which leaves many genetic carriers unidentified and at risk for late diagnosis of cancers and poor outcomes. This poses a problem for childhood cancer survivors, as this is a population with an increased risk for subsequent malignant neoplasms (SMN) due to cancer therapy or inherited cancer predisposition.

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Purpose: Hodgkin lymphoma (HL) survivors experience neurocognitive impairment despite receiving no central nervous system-directed therapy, though little is known about the underlying mechanisms.

Experimental Design: HL survivors (n = 197) and age-, sex- and race/ethnicity frequency-matched community controls (n = 199) underwent standardized neurocognitive testing, and serum collection. Luminex multiplex or ELISA assays measured markers of inflammation and oxidative stress.

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