Publications by authors named "Jennifer Willis"

Mesenchymal stromal cells (MSCs) are multipotent progenitor cells that are of considerable clinical potential in transplantation and anti-inflammatory therapies due to their capacity for tissue repair and immunomodulation. However, MSCs rapidly differentiate once in culture, making their large-scale expansion for use in immunomodulatory therapies challenging. Although the differentiation mechanisms of MSCs have been extensively investigated using materials, little is known about how materials can influence paracrine activities of MSCs.

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Article Synopsis
  • Atypical hemolytic uremic syndrome (aHUS) is a rare condition characterized by kidney damage due to abnormal complement activation, affecting not just the kidneys but other organs as well.
  • Eculizumab, a drug that helps manage aHUS, may require personalized and more frequent dosing for some patients to improve their health, as seen in a case study of a 4-year-old boy who needed more frequent doses for stabilization.
  • Individualizing the dosing interval to every 3 weeks instead of the standard 2 weeks resulted in significant cost savings and improved clinical outcomes over a 4-year follow-up period, suggesting a more efficient treatment approach for aHUS.
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: Stroke can result in disabling impairments, affecting functional mobility, balance, and gait. Individualized in-patient rehabilitation interventions improve balance and gait in patients with stroke. Rhythmic pairing of personally-selected music with rehabilitation interventions can be a practical form of personalized therapy that could improve functional outcomes.

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Further optimization of an initial DP receptor antagonist clinical candidate NVP-QAV680 led to the discovery of a follow-up molecule 2-(2-methyl-1-(4-(methylsulfonyl)-2-(trifluoromethyl)benzyl)-1-pyrrolo[2,3-]pyridin-3-yl)acetic acid (compound , NVP-QAW039, fevipiprant), which exhibits improved potency on human eosinophils and Th2 cells, together with a longer receptor residence time, and is currently in clinical trials for severe asthma.

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Based on data obtained from clinical practice analysis (CPA) surveys performed in 2010 and 2013, and with input from its maintenance of certification (MOC) advisory committee, the American Board of Radiology (ABR) recognized that the changing nature of radiation oncology practice patterns warranted revisions of its MOC Part III cognitive examination. One significant revision was the introduction of a modular examination that allowed diplomates to select specific areas of clinical interest. The module-based items represented 30% (60 of 200) of total examination content.

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Optimization of a 7-azaindole-3-acetic acid CRTh2 receptor antagonist chemotype derived from high throughput screening furnished a highly selective compound NVP-QAV680 with low nM functional potency for inhibition of CRTh2 driven human eosinophil and Th2 lymphocyte activation in vitro. The molecule exhibited good oral bioavailability in the rat, combined with efficacy in rodent CRTh2-dependent mechanistic and allergic disease models and was suitable for clinical development.

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The toxicity and solubility of chromium(VI) can be decreased by certain microbes that reduce chromium(VI) to chromium(III). However, these bacteria do not escape unscathed from this process. Chromium(VI) reduction damages the essential macromolecules of living systems.

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Telomeres play a fundamental role in the organization of the sperm nucleus resulting in the looped chromosome configuration and non-random positioning of chromosomes. Telomeres localize in the nuclear periphery and interact dynamically by forming dimers and tetramers. The purpose of this study was to evaluate the relationship of telomere interactions to DNA damage, a factor known to adversely influence male fertility.

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Objectives: To analyze the relationship between DNA damage and standard semen parameters (SSP) in patients who present for fertility evaluation. Evaluation of male fertility includes assessment of the SSP and increasingly sperm DNA damage. However, the relationship between DNA damage and SSP remains controversial.

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High throughput screening identified a 7-azaindole-3-acetic acid scaffold as a novel CRTh2 receptor antagonist chemotype, which could be optimised to furnish a highly selective compound with good functional potency for inhibition of human eosinophil shape change in whole blood and oral bioavailability in the rat.

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Assessment of sperm DNA damage has been suggested as a negative predictor of fertility potential. Multiple pathological factors acting at both the intra-testicular and post-testicular levels may contribute to sperm DNA damage. The relative contribution of each of these factors in an individual with high DNA damage (>30%) is unclear.

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We measured baseline serum mannose binding lectin (MBL) levels in 91 patients with childhood leukemia to determine their predictive value for the development of febrile neutropenia or specific infections. Median MBL levels did not differ significantly between patients who developed febrile neutropenia, bacterial infection, or disseminated fungal infection and those who did not. In addition, low MBL levels were not associated with an increased cumulative incidence of infection or with a shorter time to first infection.

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High throughput screening identified a phenoxyacetic acid scaffold as a novel CRTh2 receptor antagonist chemotype, which could be optimised to furnish a compound with functional potency for inhibition of human eosinophil shape change and oral bioavailability in the rat.

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The purpose of our study was to analyze the relationship of leukocytospermia to sperm DNA damage as assessed by the DNA integrity assay. Results indicate that leukocytospermia has a significant negative effect on the standard semen parameters of concentration, motility, and morphology but at most a very weak effect on DNA integrity as measured by the DNA fragmentation assay.

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The purpose of this study was to analyze the relationship of male age and DNA integrity in men presenting for investigation of infertility. We found that men 45 years and older had significantly greater DNA fragmentation than younger men.

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The objective of this study was to examine the relationship between DNA integrity and protamines in human sperm. One hundred forty-nine male infertility patients were included in an Institutional Review Board-approved study. Sperm were evaluated for DNA fragmentation using the DNA Integrity Assay, a test equivalent to the sperm chromatin structure assay (SCSA).

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Objectives: To examine the retention of sperm cytoplasmic droplets (CD) and DNA denaturation (DD) in semen from fertile and infertile men.

Methods: Semen samples were obtained from consecutive nonazoospermic men presenting for infertility evaluation (n = 101) and fertile men presenting for vasectomy (n = 13). The standard semen parameters (sperm concentration, motility, and morphology), sperm DD, and sperm CD were monitored.

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Objective: To evaluate the effect of perioperative and operative variables on survival time in dogs with aortic body tumors.

Study Design: Retrospective study.

Sample Population: Twenty-four client-owned dogs with histologically confirmed aortic body tumor.

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