Publications by authors named "Caitlin Murphy"

Commonly used adenine-induced chronic kidney disease (CKD) murine models often employ C57BL/6 mice; however, this strain has inherent limitations due to its natural resistance to developing key pathological features of CKD, such as tubulointerstitial fibrosis and inflammation. There have been attempts to overcome these barriers by using multiple concentrations of adenine-supplemented diets or by performing prolonged experiments up to 20 weeks. Here, we demonstrate that SKH1 Elite mice develop clinically relevant CKD phenotypes (e.

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  • A study analyzed childbirth outcomes in male adolescents and young adults (AYAs) with cancer, identifying a sample of nearly 43,000 cases over a 20-year period.
  • The research found that 18% of these AYAs had live births within ten years post-diagnosis, with higher rates observed in those with thyroid cancer compared to gastrointestinal cancer.
  • Results indicated increased chances of preterm birth and low birth weight among offspring of male AYAs with cancer, emphasizing the need for reproductive counseling for this group.
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Background: Racial and ethnic disparities have been reported for HCC prognosis, although few studies fully account for clinically important factors and social determinants of health, including neighborhood socioeconomic status.

Methods: We conducted a retrospective multicenter cohort study of patients newly diagnosed with HCC from January 2010 through August 2018 at 4 large health systems in the United States. We used multivariable logistic regression and cause-specific Cox proportional hazard models to identify factors associated with early-stage HCC presentation and overall survival.

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  • The COVID-19 pandemic increased social media usage for support, leading to a study on its impact on adults in Florida's willingness to participate in COVID-19 research.
  • The research analyzed 587 participants and found no significant link between social media use and willingness to join treatment or vaccine studies, though racial and ethnic differences were notable.
  • Specifically, Hispanic/Latino and "Other" racial group participants showed a higher likelihood of participating, and females were more inclined to engage in vaccine research, indicating the need for culturally sensitive recruitment strategies.
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Background: The value of hepatocellular carcinoma (HCC) screening is defined by the balance of benefits from early tumor detection vs harms due to false positive results. We evaluated the value of a mailed outreach strategy for HCC screening in patients with cirrhosis.

Methods: We conducted a multi-center pragmatic randomized clinical trial comparing mailed outreach for HCC screening (n = 1436) and usual care with visit-based screening (n = 1436) among patients with cirrhosis at three health systems from March 2018 to September 2021.

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  • Nationwide datasets like the SEER Program and NCDB are crucial for studying cancer trends, specifically colorectal cancer outcomes in this case study.
  • SEER includes a more diverse population and detailed socioeconomic factors, while NCDB offers unique insights into tumor characteristics and treatment options.
  • Despite differences in data, the five-year survival rates for colorectal cancer patients are similar between SEER (55.6%) and NCDB (57.5%).
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Evidence suggests neighborhood-level factors contribute to cancer outcomes, although most research focuses on pediatric and adult populations. Using population-based data from the Texas Cancer Registry, we examined neighborhood-level social vulnerability, a composite measure of 14 census tract-level social risk factors, and survival among 112 142 adolescents and young adults with cancer (AYAs, age 15-39 years). We estimated 1-, 5-, and 10-year overall survival by quintile of social vulnerability and used Cox proportional hazards models (2-sided significance testing) to estimate the association between social vulnerability and all-cause mortality.

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At the height of the COVID-19 pandemic, racial/ethnic minority residents of Prince George's County were disproportionately affected by the virus. This report from the field details an intervention that trained community health workers recruited from racial/ethnic minority communities to promote COVID-19 vaccination and health literacy among racially/ethnically diverse communities.

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Background: Growing evidence suggests that liver disease originates in early life. Antihistamines cross the placenta and are frequently prescribed to pregnant women to treat nausea and vomiting, as well as allergy and asthma symptoms. Exposure to antihistamines in utero may impact the developing liver by reprogramming or inducing epigenetic changes in fetal hepatocytes.

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  • Emerging tick-borne illnesses like anaplasmosis, babesiosis, and ehrlichiosis are caused by intracellular pathogens and are typically diagnosed using methods with limitations, prompting a need for improved testing techniques.* -
  • This study assessed a new direct real-time PCR test that detects the DNA of these pathogens directly from whole blood, showing high accuracy with a positive percent agreement (PPA) and negative percent agreement (NPA) of 100% for most comparisons.* -
  • The findings indicate that this laboratory-developed test offers rapid and reliable identification of tick-borne infections, addressing both the growing prevalence of these illnesses and the shortage of skilled technicians for traditional testing methods.*
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Unlabelled: Policy Points Maternal health is influenced by the quality and accessibility of care before, during, and after pregnancy. Nationwide, Medicaid covers nearly one in two births and uses managed care as a central means for carrying out these responsibilities. Thus, managed care plays a fundamental role in assuring timely, equitable, quality care and improving maternal health outcomes.

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The Prince George's County Health Department encountered several challenges to increasing access to cardiac rehabilitation (CR) services among disadvantaged populations. They include excessive patient out-of-pocket costs; requirements that CR orders must be signed by a physician; provider reluctance to refer patients to CR, with most primary care providers preferring to refer clients to cardiologists for the latter to determine whether the patient needs CR referral; limited availability of CR programs; and difficulty identifying patients eligible for CR services. Discussions with other local health departments and public health practitioners indicate that these challenges are not unique to Maryland but are indicative of policy and system barriers that prevent the optimal delivery of cardiovascular health services.

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Background: Hepatocellular carcinoma (HCC) is plagued by failures across the cancer care continuum, leading to frequent late-stage diagnoses and high mortality. We evaluated the effectiveness of mailed outreach invitations plus patient navigation to promote HCC screening process completion in patients with cirrhosis.

Methods: Between April 2018 and September 2021, we conducted a multicentre pragmatic randomised clinical trial comparing mailed outreach plus patient navigation for HCC screening (n=1436) versus usual care with visit-based screening (n=1436) among patients with cirrhosis at three US health systems.

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Introduction: Fertility after cancer is a top concern for adolescents and young adults with cancer (AYAs) (15-39 years old at diagnosis). The authors characterized live births after cancer by race and ethnicity ("race/ethnicity") in a population-based sample of female AYAs.

Methods: This study used Texas Cancer Registry data linked to birth certificates (1995-2016) to estimate cumulative incidence of live birth, based on first live birth after cancer, and compared differences by race/ethnicity.

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Importance: The rate of maternal mortality in the United States is 2-fold to 3-fold greater than that in other high-income countries. While many national initiatives have been developed to combat maternal mortality, these efforts often fail to include mental illness.

Objective: To highlight the underrecognized contribution of mental illness to maternal mortality, which is nearly double that of postpartum hemorrhage.

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Colorectal cancer (CRC) epidemiology is changing due to a birth cohort effect, first recognized by increasing incidence of early onset CRC (EOCRC, age <50 years). In this paper, we define "birth cohort CRC" as the observed phenomenon, among individuals born 1960 and later, of increasing CRC risk across successive birth cohorts, rising EOCRC incidence, increasing incidence among individuals aged 50 to 54 years, and flattening of prior decreasing incidence among individuals aged 55 to 74 years. We demonstrate birth cohort CRC is associated with unique features, including increasing rectal cancer (greater than colon) and distant (greater than local) stage CRC diagnosis, and increasing EOCRC across all racial/ethnic groups.

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Introduction: Hepatocellular carcinoma (HCC) surveillance is associated with improved early tumor detection, but effectiveness is limited by underuse. We characterized adherence to HCC surveillance using proportion of time covered (PTC) and estimated its association with clinical outcomes among patients with cirrhosis.

Methods: We conducted a retrospective cohort study of patients diagnosed with HCC between January 2008 and December 2022 at 2 large US health systems.

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Background: Fecal immunochemical test (FIT) is an effective colorectal cancer screening modality. Little is known about prevalence, reasons, and testing after unsatisfactory FIT, or a FIT that cannot be processed by the laboratory due to inadequate stool specimen or incomplete labeling.

Methods: Our retrospective cohort study examined unsatisfactory FIT among average-risk individuals aged 50-74 years in a large, integrated, safety-net health system who completed an index FIT from 2010 to 2019.

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The US Black population has higher colorectal cancer (CRC) incidence rates and worse CRC survival than the US White population, as well as historically lower rates of CRC screening. The Surveillance, Epidemiology, and End Results incidence rate data in people diagnosed between the ages of 20 and 45 years, before routine CRC screening is recommended, were analyzed to estimate temporal changes in CRC risk in Black and White populations. There was a rapid rise in rectal and distal colon cancer incidence in the White population but not the Black population, and little change in proximal colon cancer incidence for both groups.

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  • - The study aimed to investigate how well diagnostic tests for iron-deficiency anemia (IDA) and hematochezia are completed and the time it takes for veterans under 50 to get these tests done.
  • - Conducted from 1999 to 2019 within the Veterans Health Administration, the cohort included over 248,000 veterans diagnosed with either IDA or hematochezia, with a focus on demographics and diagnostic factors.
  • - Results showed that only 22% of veterans with IDA and 40% of those with hematochezia completed the necessary diagnostic workups within two years, with notable disparities based on age, gender, and race.
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The Colibrí™ is a new instrument that automates picking and placement of colonies on target plates for MALDI identification. This study compared the performance of the Colibrí™ to standard manual spotting using the VITEK® MS for bacterial identification. Colonies were selected from cultures of urine, wound, respiratory, and positive blood cultures.

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The bioMérieux BIOFIRE Joint Infection (JI) Panel is a multiplex diagnostic test for the simultaneous and rapid (~1 h) detection of 39 potential pathogens and antimicrobial resistance (AMR) genes directly from synovial fluid (SF) samples. Thirty-one species or groups of microorganisms are included in the kit, as well as several AMR genes. This study, performed to evaluate the BIOFIRE JI Panel for regulatory clearance, provides data from a multicenter evaluation of 1,544 prospectively collected residual SF samples with performance compared to standard-of-care (SOC) culture for organisms or polymerase chain reaction (PCR) and sequencing for AMR genes.

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Introduction: Coronavirus Disease 2019 disrupted cancer-related care in early 2020.

Methods: We used population-based cancer registry data to estimate incidence and mortality rates of gastrointestinal cancers between 2016 and 2020.

Results: Incidence rates were unchanged from 2016 to 2019 but decreased in 2020, with the largest declines for colorectal cancer (rate ratio [RR] 0.

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