Publications by authors named "Bruce Brown"

Introduction: This qualitative research study was conducted to develop a novel, comprehensive, patient-reported outcome measure (PRO), the "Symptoms and Impacts of Androgen Deprivation Therapy (ADT) for Prostate Cancer" (SIADT-PC), assessing hormonal therapy-related symptoms and their impacts on men with advanced prostate cancer.

Methods: Concept elicitation (CE) interviews were conducted among adult men with prostate cancer to evaluate their experiences with ADT. Based on key symptom and impact concepts mentioned, an initial PRO measure was developed.

View Article and Find Full Text PDF

Intermittent oil-water wetting can have a significant effect on the internal corrosion of steel pipelines. This paper presents a combined experimental and molecular modeling study of several influential factors on the surface properties and corrosion behavior of mild steel in CO environments. The influence of different model oils (LVT-200 and Aromatic-200) and select surface-active compounds (myristic acid, cyclohexane butyric acid, and oleic acid) on the corrosion behavior of carbon steel during intermittent oil-water wetting was determined by measuring the corrosion rate after intermittent wetting cycles.

View Article and Find Full Text PDF

Importance: Combination androgen deprivation therapy (ADT) with radiotherapy is commonly used for patients with localized and advanced prostate cancer.

Objective: To assess the efficacy and safety of the oral gonadotropin-releasing hormone antagonist relugolix with radiotherapy for treating prostate cancer.

Design, Setting, And Participants: This multicenter post hoc analysis of patients with localized and advanced prostate cancer receiving radiotherapy in 2 randomized clinical trials (a phase 2 trial of relugolix vs degarelix, and a subset of the phase 3 HERO trial of relugolix vs leuprolide acetate) included men who were receiving radiotherapy and short-term (24 weeks) ADT (n = 103) from 2014 to 2015 and men receiving radiotherapy and longer-term (48 weeks) ADT (n = 157) from 2017 to 2019.

View Article and Find Full Text PDF

Background: In the HERO study, relugolix demonstrated sustained testosterone suppression superior to that of leuprolide acetate (97% vs 89%; difference 7.9% [95% confidence interval, 4.1-12%; p < 0.

View Article and Find Full Text PDF

Background And Objectives: Scrupulosity, despite its considerable prevalence and morbidity, remains under-investigated. The present study develops and examines the psychometric properties of a comprehensive assessment tool, the Scrupulosity Inventory (SI).

Methods: The SI, along with other measures of obsessive-compulsive disorder (OCD) and perfectionism, were administered to a sample (N = 150) of college undergraduates similar in size to other scale development studies of related measures.

View Article and Find Full Text PDF
Article Synopsis
  • Cardiovascular disease (CVD) is a major health concern for prostate cancer (PC) patients, especially those undergoing androgen deprivation therapy (ADT), as the treatment can increase their risk for diabetes and CVD.
  • A study analyzed data from over 10,500 PC patients to assess the time to first cardiovascular event after starting ADT, revealing that those with a history of CVD have a significantly higher risk.
  • The results showed that patients with a prior CVD history were over three times more likely to experience a cardiovascular event within three years of initiating ADT compared to those without a CVD history.
View Article and Find Full Text PDF

Introduction: Hospital-acquired infections (HAIs) after stroke are associated with additional morbidity and mortality, but whether HAIs increase long-term cognitive decline in stroke patients is unknown. We hypothesized that older adults with incident stroke with HAI experience faster cognitive decline than those having stroke without HAI and those without stroke.

Methods: We performed a longitudinal analysis in the population-based prospective Cardiovascular Health Study.

View Article and Find Full Text PDF

Relugolix is an oral GnRH receptor antagonist approved for men with advanced prostate cancer. Relugolix treatment has demonstrated an ability to lower testosterone to sustained castration levels in the phase 4 HERO study. Herein, we describe the results of a secondary endpoint of castration resistance-free survival (CRFS) during 48 weeks of treatment and profile patients with castration-resistant prostate cancer (CRPC).

View Article and Find Full Text PDF
Article Synopsis
  • Relugolix, an oral medication for advanced prostate cancer, effectively suppressed testosterone levels like leuprolide during the HERO study, assessing its impact on patients' daily lives.
  • The study compared health-related quality of life (HRQOL) of patients on relugolix versus those on leuprolide, evaluating HRQOL using established questionnaires during treatment and testosterone recovery phases.
  • While both treatments showed similar HRQOL changes, relugolix resulted in lower hormone-related symptom scores during recovery, indicating a potentially less burdensome option for patients.
View Article and Find Full Text PDF

Opioid use disorder (OUD)-associated overdose deaths have reached epidemic proportions worldwide over the past two decades, with death rates for men reported at twice the rate for women. Using a controlled, cross-sectional, age-matched (18-56 y) design to better understand the cognitive neuroscience of OUD, we evaluated the electroencephalographic (EEG) responses of male and female participants with OUD vs. age- and gender-matched non-OUD controls during a simple visual object recognition Go/No-Go task.

View Article and Find Full Text PDF

Introduction: Cardiovascular (CV) events are the leading cause of death in prostate cancer. Men with prostate cancer are likely to have CV risk factors and use CV-related concomitant medications. In the phase 3 HERO study, a 54% lower incidence of major adverse cardiac events was reported in men treated with the oral gonadotropin-releasing hormone (GnRH) receptor antagonist, relugolix, vs leuprolide.

View Article and Find Full Text PDF

Associated with gastritis, peptic-ulcer disease, and gastric carcinoma, Helicobacter pylori (H. pylori) also has been associated with decreased cognitive function and dementia. In this study, we used data from the UK Biobank to further examine associations between H.

View Article and Find Full Text PDF

Background: To characterize the impact of concomitant prostate cancer treatments with the use of relugolix, the oral GnRH receptor antagonist, in advanced prostate cancer, a subgroup and pharmacokinetic/pharmacodynamic analyses of the HERO study was undertaken.

Patients And Methods: Overall, 934 patients were randomized 2:1 to receive relugolix 120 mg orally once daily or leuprolide injections every 12 weeks for 48 weeks. In the setting of rising PSA, patients could receive enzalutamide or docetaxel 2 months after study initiation.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates the safety and tolerability of relugolix when combined with abiraterone acetate and apalutamide for treating prostate cancer.
  • The ongoing trial involves men with different stages of prostate cancer and assesses various health indicators over 52 weeks, focusing on adverse events, vital signs, and hormone levels.
  • Results show that the combination therapy is generally safe, with mild to moderate side effects consistent with known profiles, and testosterone levels remain at castration levels post-transition.
View Article and Find Full Text PDF

We analyzed, through a Pavlovian conditioning procedure in rats, the temporal pattern of behavior in appetitive and aversive conditions within subjects, and the difference in inferred temporal working memory functioning with the Gap paradigm. For both conditions, we paired a 60-s conditioned stimulus (CS: tone1 or tone2) with an unconditioned stimulus (US: shock or chocolate pellet) delivered 20s after CS onset. The analyses of mean response rate and individual-trial data were performed during Probe trials, consisting of CS alone, and trials in which gaps of different position or duration were inserted, to assess the effect of the temporal manipulation on behavior.

View Article and Find Full Text PDF

The nematodes Toxocara canis (Werner, 1782) and Toxocara cati (Schrank, 1788) have been associated with worse human cognitive function in children and middle-aged adults. In this study, we sought to determine the association between Toxocara seropositivity and serointensity determined by detection of IgG antibodies against the Toxocara antigen recombinant Tc-CTL-1 and cognitive function in older adults, including approximately 1,350 observations from the 2013-2014 National Health and Nutrition Examination Survey. Mean fluorescence intensity was used to quantify IgG antibodies against the Toxocara recombinant Tc-CTL-1 antigen, and respondents were considered positive at values greater than 23.

View Article and Find Full Text PDF

Objectives: Describe clinical characteristics of adolescents hospitalized with e-cigarette or vaping product use-associated lung injury (EVALI) and to investigate association between EVALI and coagulopathy.

Methods: We conducted a retrospective cohort study of adolescents admitted to the general inpatient or ICUs at 2 major tertiary children's hospitals from January 2019 to June 2021. We included analysis of demographics, clinical findings, laboratory and imaging results, and outcomes.

View Article and Find Full Text PDF

Infecting much of the world's population, the herpesviridae virus cytomegalovirus has been associated with lower cognitive function in some but not all studies. In this study, we further investigate associations between cytomegalovirus and cognitive function in a community-based sample of adults aged 40 to 70 years (M = 55.3; SD = 8.

View Article and Find Full Text PDF

Several viral, bacterial, and parasitic diseases have been associated with cognitive function and neuropsychiatric outcomes in humans, including human T-cell lymphotropic virus 1 (HTLV-1). In this study, we sought to further generalize previously reported associations of cognitive function and depression with HTLV-1 seropositivity and serointensity using a community-based sample of adults aged approximately 40 to 70 years (mean = 55.3 years) from the United Kingdom.

View Article and Find Full Text PDF

Background: Novel coronavirus disease 2019 (COVID-19) vaccine administration has faced distribution barriers across the United States. We sought to delineate our vaccine delivery experience in the first week of vaccine availability, and our effort to prioritize employees based on risk with a goal of providing an efficient infrastructure to optimize speed and efficiency of vaccine delivery while minimizing risk of infection during the immunization process.

Objective: This article aims to evaluate an employee prioritization/invitation/scheduling system, leveraging an integrated electronic health record patient portal framework for employee COVID-19 immunizations at an academic medical center.

View Article and Find Full Text PDF

Introduction: Recent clinical trials are considering inclusion of more than just apolipoprotein E () ε4 genotype as a way of reducing variability in analysis of outcomes.

Methods: Case-control data were used to compare the capacity of age, sex, and 58 Alzheimer's disease (AD)-associated single nucleotide polymorphisms (SNPs) to predict AD status using several statistical models. Model performance was assessed with Brier scores and tenfold cross-validation.

View Article and Find Full Text PDF

Infecting approximately one-third of the world's population, the neurotropic protozoan has been associated with cognition and several neuropsychiatric diseases including schizophrenia and bipolar disorder. Findings have been mixed, however, about the relationship between and depression, with some studies reporting positive associations and others finding no associations. To further investigate the association between and depression, we used data from the UK Biobank and the National Health and Examination Survey (NHANES).

View Article and Find Full Text PDF

The intracellular protozoal parasite Toxoplasma gondii has been associated with worsened cognitive function in animal models and in humans. Despite these associations, the mechanisms by which Toxoplasma gondii might affect cognitive function remain unknown, although Toxoplasma gondii does produce physiologically active intraneuronal cysts and appears to affect dopamine synthesis. Using data from the UK Biobank, we sought to determine whether Toxoplasma gondii is associated with decreased prefrontal, hippocampal, and thalamic gray-matter volumes and with decreased total gray-matter and total white-matter volumes in an adult community-based sample.

View Article and Find Full Text PDF

Infecting approximately one-third of the world's human population, Toxoplasma gondii has been associated with cognitive function. Here, we sought to further characterize the association between Toxoplasma gondii and cognitive function in a community sample of adults aged approximately 40 to70 years. Using adjusted linear regression models, we found associations of Toxoplasma gondii seropositivity with worse reasoning (b = -.

View Article and Find Full Text PDF
Article Synopsis
  • The study looked at how changing the value of certain foods affects rats' ability to tell time when they had to choose between two different times.
  • Rats were given sweet food (sucrose) for one time and grain pellets for another to see if they could pick the right time after eating different foods.
  • The results showed that when the food for the longer time was made less appealing, it really changed how the rats responded compared to when the food for the shorter time was changed.
View Article and Find Full Text PDF