Publications by authors named "Benjamin Carper"

Alcohol use disorder (AUD) is a frequent comorbidity in patients suffering from post-traumatic stress disorder (PTSD). Few therapeutic options are available for the individual disorders, and there are currently no drugs specifically shown to treat AUD in patients with comorbid PTSD. As PTSD has been associated with dysregulation of the brain's opioid system, our study aimed to examine the effects of a non-selective opioid compound, PPL-138, for use in co-morbid PTSD and AUD.

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Background And Purpose: Post-traumatic stress disorder (PTSD) is a significant challenge in the military population and civilians exposed to danger and violence. Alcohol use disorder (AUD) and pain are common PTSD comorbidities, with a higher incidence in PTSD patients than the general population. Approved pharmacotherapies for these disorders are often ineffective and adverse effect potential limits use.

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Importance: Hospitalization of moderately preterm infants may be prolonged while waiting for apnea of prematurity to resolve after discontinuing caffeine.

Objective: To evaluate whether extending caffeine treatment reduces the duration of hospitalization.

Design, Setting, And Participants: From February 2019 to December 2022, this randomized clinical trial in 29 US hospitals enrolled infants born at 29 to 33 weeks' gestation who at 33 to 35 weeks' postmenstrual age were receiving caffeine treatment with plans to discontinue it plus receiving full feeds (≥120 mL/kg/d).

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Objective: This study aimed to determine the effect of a run-in period on fecal incontinence (FI) symptom severity.

Study Design: This study conducted a planned secondary analysis of the run-in period to a study evaluating the effect of 12-week treatment with percutaneous tibial nerve stimulation versus sham in reducing FI severity in women. All participants completed a 4-week run-in period designed to exclude from randomization women whose symptoms reduced below the eligibility threshold after receiving education on FI and completing bowel diaries.

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Article Synopsis
  • Hereditary hemorrhagic telangiectasia (HHT) is a genetic disorder that leads to severe nosebleeds and related health issues, primarily affecting patients' quality of life due to iron-deficiency anemia from frequent epistaxis.
  • A study was conducted where 144 participants were given either pomalidomide or a placebo for 24 weeks to assess the drug's effectiveness in reducing nosebleed severity and improving quality of life, with results favoring the pomalidomide group.
  • The results showed that those taking pomalidomide experienced a greater decrease in bleeding scores and improved quality-of-life measures, although there were some additional side effects observed in the pomalidomide group.
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Introduction And Hypothesis: The goal of this study was to determine whether dietary fat/fiber intake was associated with fecal incontinence (FI) severity.

Methods: Planned supplemental analysis of a randomized clinical trial evaluating the impact of 12-week treatment with percutaneous tibial nerve stimulation versus sham in reducing FI severity in women. All subjects completed a food screener questionnaire at baseline.

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Hypothesis: Increased social distancing was associated with a lower incidence of extremely preterm live births (EPLB) during the initial COVID-19 pandemic period.

Study Design: Prospective study at the NICHD Neonatal Research Network sites comparing EPLB (22-28 weeks) and extremely preterm intrapartum stillbirths (EPIS) rates during the pandemic period (March-July, weeks 9-30 of 2020) with the reference period (same weeks in 2018 and 2019), correlating with state-specific social distancing index (SDI).

Results: EPLB and EPIS percentages did not significantly decrease (1.

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Introduction And Hypothesis: Despite growing interest in a mobile-app bowel diary to assess fecal incontinence (FI) symptoms, data are limited regarding the correlation between mobile-app diary and questionnaire-based outcomes. The primary aim is to determine whether percentage reduction in FI episodes (FIEs)/week recorded on a mobile-app diary correlates with changes in scores of validated FI-symptom measures from baseline to 12 weeks in women with FI undergoing percutaneous tibial nerve stimulation (PTNS) versus sham.

Methods: This is a planned secondary analysis of a multicenter randomized trial in which women with FI underwent PTNS or sham.

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We evaluated changes in patent ductus arteriosus (PDA) diagnosis and treatment from 2012 through 2021 in a network of US academic hospitals. PDA treatment decreased among infants born at 26-28 weeks but not among infants born at 22-25 weeks. Rates of indomethacin use and PDA ligation decreased while acetaminophen use and transcatheter PDA closure increased.

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Objective: To identify vaginal morphology and position factors associated with prolapse recurrence following vaginal surgery.

Design: Secondary analysis of magnetic resonance images (MRI) of the Defining Mechanisms of Anterior Vaginal Wall Descent cross-sectional study.

Setting: Eight clinical sites in the US Pelvic Floor Disorders Network.

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Introduction And Hypothesis: In randomized trials both percutaneous tibial nerve stimulation (PTNS) and sham result in clinically significant improvements in accidental bowel leakage (ABL). We aimed to identify subgroups who may preferentially benefit from PTNS in women enrolled in a multicenter randomized trial.

Methods: This planned secondary analysis explored factors associated with success for PTNS vs sham using various definitions: treatment responder using three cutoff points for St.

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Post-traumatic stress disorder (PTSD) leads to enhanced alcohol drinking and development of alcohol use disorder (AUD). Identifying shared neural mechanisms might help discover new therapies for PTSD/AUD. Here, we employed a rat model of comorbid PTSD/AUD to evaluate compounds that inhibit FK506-binding protein 51 (FKBP5), a co-chaperone modulator of glucocorticoid receptors implicated in stress-related disorders.

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There is comorbidity between posttraumatic stress disorder (PTSD) and opioid use disorder (OUD), perhaps because PTSD-like stressful experiences early in life alter the hypothalamic-pituitary-adrenal stress axis to increase the risk for OUD. The present study determined if the glucocorticoid receptor antagonist PT150 reduces the escalation of fentanyl intake in rats exposed to a "two-hit" model of early-life stress (isolation rearing and acute stress). Male and female rats were raised during adolescence in either isolated or social housing and then were given either a single acute stress (restraint and cold-water swim) or control treatment in young adulthood.

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Background: The Eunice Kennedy Shriver National Institute of Child Health and Human Development Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be was established to investigate the underlying causes and pathophysiological pathways associated with adverse pregnancy outcomes in nulliparous gravidas.

Objective: This study aimed to study placental physiology and identify novel biomarkers concerning adverse pregnancy outcomes, including preterm birth (medically indicated and spontaneous), preeclampsia, small-for-gestational-age neonates, and stillbirth. We measured levels of placental proteins in the maternal circulation in the first 2 trimesters of pregnancy.

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Introduction: To determine whether percutaneous tibial nerve stimulation (PTNS) is superior to sham stimulation for the treatment of fecal incontinence (FI) in women refractory to first-line treatments.

Methods: Women aged 18 years or older with ≥3 months of moderate-to-severe FI that persisted after a 4-week run-in phase were randomized 2:1 (PTNS:sham stimulation) to 12 weekly 30-minute sessions in this multicenter, single-masked, controlled superiority trial. The primary outcome was change from baseline FI severity measured by St.

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Article Synopsis
  • * A study involving 3,739 participants found that while an early diastolic notch was not a significant factor, increased resistance index (RI) and pulsatility index (PI) values were associated with greater odds of hypertension.
  • * The findings suggest that monitoring RI and PI could indicate higher cardiovascular risk for mothers, particularly if these indices exceed certain thresholds.
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Objective: To determine whether the duration of noninvasive respiratory support exposure is associated with bronchopulmonary dysplasia (BPD) or death in preterm infants.

Methods: Multicenter, retrospective study of infants born at <29 weeks' gestation. The association between days on noninvasive respiratory support and BPD or death was determined using instrumental variable techniques and generalized propensity score matching to account for potential confounding by illness severity.

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Article Synopsis
  • The study investigates the relationship between preoperative urinary and vaginal microbiomes and surgical treatment outcomes for mixed urinary incontinence in women who underwent a midurethral sling operation.* -
  • Results show that nonresponders to surgery were older, more likely to be postmenopausal, and that certain bacterial genera like Lactobacillus and Gardnerella were prevalent, though these did not significantly correlate with surgical success.* -
  • The research utilized 16S ribosomal RNA sequencing to analyze microbiome differences and found that beta diversity was influenced by age for both surgical responders and nonresponders.*
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Objective: To evaluate characteristics associated with treatment failure 1 year after midurethral sling in women with mixed urinary incontinence.

Methods: Four-hundred three women who participated in a randomized trial that compared midurethral sling and behavioral and pelvic floor muscle therapy (combined group) compared with midurethral sling alone for mixed incontinence with 1-year follow-up data were eligible for this planned secondary analysis. Overall treatment failure was defined as meeting criteria for subjective or objective failure or both.

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Rationale: Pre-clinical evidence implicates the GABAergic system in mediating the reinforcing effects of alcohol and offers a therapeutic target for alcohol use disorder (AUD). The orthosteric GABA receptor agonist baclofen decreases alcohol self-administration in animals and alcohol use in humans; however side effects limit its utility. Pre-clinical evidence shows positive allosteric GABA receptor modulators also decrease alcohol self-administration without untoward side effects.

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Rationale: Opioid use disorder (OUD) is highly comorbid with stress-related disorders, and stress can serve as a trigger for reinstatement of drug seeking. Glucocorticoid receptor (GR) antagonists such as mifepristone (RU-486) may be effective against stress-induced drug seeking. In the current study, PT150 (formerly ORG-34517), a more selective GR antagonist, was tested using two models of stress-induced drug seeking, namely footshock and yohimbine.

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Background And Objectives: Early determination of prognosis is important in neonates with hypoxic-ischemic encephalopathy (HIE). Our objective was to test scoring systems developed earlier (original scoring system) and develop new prognostic models.

Methods: Secondary analysis of data from the multicenter randomized controlled trial of longer, deeper, or usual care cooling in neonatal HIE (NCT01192776) that enrolled 364 neonates diagnosed with moderate or severe HIE.

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Aims: To assess performance, acceptability, external validity, and reliability of a phone application electronic bowel diary (PFDN Bowel eDiary).

Methods: Women reporting refractory accidental bowel leakage (ABL) were enrolled in a randomized, crossover trial evaluating paper versus eDiary documentation of bowel movements (BM) and fecal incontinence episodes (FIE). Events were characterized by the presence or absence of urgency and Bristol stool scale consistency.

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