Beals

Additive manufacturing technologies enable the creation of very precise and well-defined structures that can mimic hierarchical features of natural tissues. In this article, we describe the development of a manufacturing technology platform to produce innovative biodegradable membranes that are enhanced with controlled microenvironments produced via a combination of selective laser melting techniques and conventional electrospinning. This work underpins the manufacture of a new generation of biomaterial devices that have significant potential for use as both basic research tools and components of therapeutic implants...

This article provides information on recent changes in the US Food and Drug Administration (FDA) labeling and safety regulations for mifepristone (Mifeprex). The revised label now permits midwives, advanced practice nurses, and physician assistants to order and prescribe mifepristone, eliminating the requirement for physician supervision. The updated label also extends eligibility for use from 49 to 70 days' gestation and decreases the number of required visits from 3 to 2. The recommended dose of mifepristone has been reduced, and the dosage, timing, and route of administration for misoprostol have also been changed to reflect current research...

BACKGROUND: Liver transplantation to treat neuroendocrine tumors, especially in the setting of diffuse liver involvement not amenable to operative resection remains controversial. We sought to perform a systematic review of the current literature to summarize data on patients undergoing liver transplantation with neuroendocrine tumors liver metastases as the indication. METHODS: A systematic review was conducted in accordance to the Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines...

A synthetic biology workflow is composed of data repositories that provide information about genetic parts, sequence-level design tools to compose these parts into circuits, visualization tools to depict these designs, genetic design tools to select parts to create systems, and modeling and simulation tools to evaluate alternative design choices. Data standards enable the ready exchange of information within such a workflow, allowing repositories and tools to be connected from a diversity of sources. The present paper describes one such workflow that utilizes, among others, the Synthetic Biology Open Language (SBOL) to describe genetic designs, the Systems Biology Markup Language to model these designs, and SBOL Visual to visualize these designs...

BACKGROUND: Past catheter-based and focused ultrasound renal denervation studies have indicated that procedure efficacy is related to the number of ablations performed or the amount of energy used for the ablation. This study extends those prior results and investigates energy level effects on the efficacy of MR guided focused ultrasound renal denervation performed in a porcine model. METHODS: Twenty-four normotensive pigs underwent unilateral denervation at three intensity levels...

This corrects the article DOI: 10.1038/nature22403.

Inosine is one of the most common modifications found in human RNAs and the Adenosine Deaminases that act on RNA (ADARs) are the main enzymes responsible for its production. ADARs were first discovered in the 1980s and since then our understanding of ADARs has advanced tremendously. For instance, it is now known that defective ADAR function can cause human diseases. Furthermore, recently solved crystal structures of the human ADAR2 deaminase bound to RNA have provided insights regarding the catalytic and substrate recognition mechanisms...

Identifying chemical exposures that can cause germline mutations is important as these mutations can be inherited, impacting both individual and population health. However, germline mutations are extremely rare and difficult to detect. Chemically induced germline mutations can be detected through analysis of highly unstable tandem repeat DNA. We recently developed a single-molecule PCR (SM-PCR) approach to quantify mutations at a mouse microsatellite locus (Mm2.2.1) in sperm for such purposes. In this study, we refine this approach through the combined analysis of mouse microsatellites Mm2...

BACKGROUND: High-risk donor allografts increase access to liver transplant, but potentially reduce patient and graft survival. AIMS: It is unclear whether the risk associated with using marginal donor livers is mitigated by increasing center experience. METHODS: The United Network for Organ Sharing registry was queried for adult first-time liver transplant recipients between 2/2002 and 12/2015. High donor risk was defined as donor risk index >1...

OBJECTIVE: The goal of this study is to assess perceptions about hospice among patients with metastatic cancer and their caregivers (i.e., family and/or friends). DESIGN AND SETTING: We conducted semi-structured interviews with 16 adult patients with a prognosis ≤12 months and 7 of their caregivers. The interviews focused on perceptions, knowledge, and information preferences about hospice. Two raters coded interviews independently (κ > 0.85). We used a framework approach for data analysis...

BACKGROUND: Current guidelines for the management of indeterminate nodules discovered on surveillance imaging recommend alternate imaging modality or biopsy. This study evaluates the use of short interval MRI rather than immediate CT or biopsy. METHOD: This retrospective cohort study examines outcomes of 111 patients with indeterminate nodules reviewed by a single institution's Liver Tumor Board 2011-2016. Analysis was focused on outcomes stratified by management decision...

BACKGROUND: The aim of this study was to compare patients with PHC with lymph node metastases (LN+) who underwent a resection with patients who did not undergo resection because of locally advanced disease at exploratory laparotomy. METHODS: Consecutive LN+ patients who underwent a resection for PHC in 12 centers were compared with patients who did not undergo resection because of locally advanced disease at exploratory laparotomy in 2 centers. RESULTS: In the resected cohort of 119 patients, the median overall survival (OS) was 19 months and the estimated 1-, 3- and 5-year OS was 69%, 27% and 13%, respectively...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

AIM: To determine the utilisation of computed tomography pulmonary angiography (CTPA) and lung scintigraphy in the UK, and to assess their diagnostic qualities in the investigation of suspected pulmonary embolism (PE) in pregnancy. MATERIALS AND METHODS: Data were collected via electronic questionnaire in the UK from 24 sites. Data on the choice of imaging technique, radiation dose, technical adequacy, weeks' gestation, presenting symptoms, and further management of patients with indeterminate imaging were collected...

BACKGROUND: Recent investigations have suggested that disrupted body-image may contribute to the lumbopelvic pain experience. The changes in body shape and size associated with pregnancy suggest that pregnancy-related lumbopelvic pain might be a problem in which alterations in body-image are particularly relevant. OBJECTIVES: To investigate if self-reported body-image is related to lumbopelvic pain status in women during pregnancy and explore the factors that might contribute to changes in body-image in women experiencing pregnancy-related lumbopelvic pain...

BACKGROUND: The 2014 Medicaid expansion in participating states increased insurance coverage among people with chronic health conditions, but its implications for access to surgical care remain unclear. We investigated how Medicaid expansion influenced the insurance status of candidates for liver transplantation (LT) and transplant center payor mix. STUDY DESIGN: Data on LT candidates age 18-64 years in 2012-2013 (pre-expansion) and 2014-2015 (post-expansion) were obtained from the United Network for Organ Sharing registry...

The use of liver transplantation (LT) for liver metastases attempted in the early 1990's was associated with poor perioperative outcomes and unacceptably low overall survival. Recently, there has been renewed interest in LT as a treatment option for colorectal liver metastases (CLM) in countries where organ supply is high. To date, no meticulous analysis about the efficacy, safety and outcomes of LT in CLM patients has been published. We present the first systematic review on the subject.

No abstract text is available yet for this article.

BACKGROUND: There is some evidence that a subset of patients with recurrent ovarian cancer may benefit from antiestrogen therapy. The Paragon study is a basket protocol that includes a series of phase 2 trials investigating the activity of anastrozole in patients with estrogen or progesterone receptor-positive recurrent gynecological cancers. We report the results of treatment in patients with platinum-resistant or -refractory recurrent epithelial ovarian cancer. METHODS: Postmenopausal women who had estrogen and/or progesterone receptor-positive platinum-resistant or platinum-refractory recurrent ovarian cancer and disease measurable by Response Evaluation Criteria In Solid Tumors (RECIST) version 1...