Publications by authors named "Brian Duncan"

Acute myeloid leukemia (AML) driven by the activation of due to chromosome 3q26/ rearrangements is incurable. Because transcription factors such as EVI1 are notoriously hard to target, insight into the mechanism by which EVI1 drives myeloid transformation could provide alternative avenues for therapy. Applying protein folding predictions combined with proteomics technologies, we demonstrate that interaction of EVI1 with CTBP1 and CTBP2 via a single PLDLS motif is indispensable for leukemic transformation.

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Background: Rates of return to preinjury level of play after anterior cruciate ligament (ACL) reconstruction (ACLR) remain unsatisfactory, particularly for patients who undergo revision surgery. Psychological readiness is associated with successful return to sport (RTS) and self-perceived preinjury sport performance.

Purpose: To compare psychological readiness at RTS between patients who underwent revision ACL autograft reconstruction and matched controls who underwent primary ACL autograft reconstruction.

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Article Synopsis
  • Bendamustine and rituximab (BR) therapy is effective for treating Waldenström Macroglobulinemia (WM), but the optimal dose of Bendamustine and its effects in different treatment settings remain unclear.
  • In a study of 250 WM patients, response rates were significantly better in patients treated in the frontline setting compared to those with relapsed disease (91.4% vs 73.9%).
  • Achieving a complete response (CR) or very good partial response (VGPR) improved survival rates, and higher doses of Bendamustine were linked to better progression-free survival (PFS) outcomes in both frontline and relapsed patients.
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Background: Despite the association between hip abduction weakness and non-contact anterior cruciate ligament (ACL) injury, hip abduction strength is rarely considered in return to sport decision-making following ACL reconstruction (ACLR).

Hypothesis/purpose: The purpose of this study was to compare self-reported function, objective functional test performance, and re-injury rates in patients with high (≥33%) versus low (<33% ) isometric hip abduction strength to body weight (BW) ratios when returning to activity following ACLR.

Study Design: Cohort study.

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Background: Self-efficacy and fear of re-injury have been documented as factors related to an athlete's ability to return-to-sport after anterior cruciate ligament (ACL) reconstruction. The purpose of this study was to compare psychological readiness between athletes injured in their primary mode of sport versus those injured outside of their primary sport following ACL reconstruction.

Hypothesis: Athletes sustaining 'in-sport' injuries will demonstrate poorer psychological readiness when compared their matched counterparts injured outside of their primary sport.

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Umbilical cord blood (UCB) has had considerable impact in pediatric stem cell transplantation, but its wider use is limited in part by unit size. Long-term ex vivo culture offers one approach to increase engraftment capacity by seeking to expand stem and progenitor cells. Here, we show brief incubation (8 h) of UCB CD34+ cells with the matricellular regulator Nov (CCN3) increases the frequency of serially transplantable hematopoietic stem cells (HSCs) 6-fold.

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The literature on immigrant assimilation and intergenerational progress has sometimes reached surprising conclusions, such as the puzzle of immigrant advantage which finds that Hispanic immigrants sometimes have better health than US-born Hispanics. While numerous studies have attempted to explain these patterns, almost all studies rely on subjective measures of ethnic self-identification to identify immigrants' descendants. This can lead to bias due to "ethnic attrition," which occurs whenever a US-born descendant of a Hispanic immigrant fails to self-identify as Hispanic.

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U.S.-born Mexican Americans suffer a large schooling deficit relative to other Americans, and standard data sources suggest that this deficit does not shrink between the 2nd and later generations.

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Evaluating the long-term socioeconomic integration of immigrants in the United States requires analyses of differences between foreign-born and U.S.-born residents, as well as analyses across generations of the U.

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Because of data limitations, virtually all studies of the later-generation descendants of immigrants rely on subjective measures of ethnic self-identification rather than arguably more objective measures based on the countries of birth of the respondent and his ancestors. In this context, biases can arise from "ethnic attrition" (e.g.

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We link data on racial self-identification with changes in state-level affirmative action policies to ask whether racial self-identification responds to economic incentives. We find that after a state bans affirmative action, multiracial individuals who face an incentive to identify under affirmative action are about 30 percent less likely to identify with their minority groups. In contrast, multiracial individuals who face a disincentive to identify under affirmative action are roughly 20 percent more likely to identify with their minority groups once affirmative action policies are banned.

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The PediPump was implanted in six healthy lambs (mean 25.6 ± 1.4 kg) between the left ventricular apex and the descending aorta to evaluate in vivo performance for up to 30 days.

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Every year, a large number of children in the United States enter the foster care system. Many of them are eventually reunited with their biological parents or quickly adopted. A significant number, however, face long-term foster care, and some of these children are eventually adopted by their foster parents.

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We investigate whether selective intermarriage and endogenous ethnic identification interact to hide some of the intergenerational progress achieved by the Mexican-origin population in the United States. In part, we do this by comparing an "objective" indicator of Mexican descent (based on the countries of birth of the respondent and his parents and grandparents) with the standard "subjective" measure of Mexican self-identification (based on the respondent's answer to the Hispanic origin question). For third-generation Mexican-American youth, we show that ethnic attrition is substantial and could produce significant downward bias in standard measures of attainment which rely on ethnic self-identification.

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The accurate determination of circulating blood volume (CBV) in children has many clinical applications. The purposes of this article were to review currently available CBV measurement techniques and perform a meta-analysis using values from many small-scale studies that calculated CBV values for normal healthy children. A literature review demonstrated numerous methods by which to determine CBV.

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Cleveland Clinic's PediPump (Cleveland, OH, USA) is a ventricular assist device designed for the support of pediatric patients. The PediPump is a mixed-flow ventricular assist device with a magnetically suspended impeller measuring 10.5 mm in diameter by 64.

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Patients treated by pediatric interventional cardiologists and cardiac surgeons often have unmet medical device needs that pose a challenge to the current regulatory evaluation and approval process in the United States. In this report we review current US Food and Drug Administration regulatory processes, review some unique aspects of pediatric cardiology and cardiac surgery that pose challenges to these processes, and discuss possible alternate pathways to cardiac device evaluation and approval for children. Children deserve to benefit from new and refined cardiac devices and technology designed explicitly for their conditions.

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