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James Maxwell

Kyung-Ha Lee, Peipei Zhang, Hong Joo Kim, Diana M Mitrea, Mohona Sarkar, Brian D Freibaum, Jaclyn Cika, Maura Coughlin, James Messing, Amandine Molliex, Brian A Maxwell, Nam Chul Kim, Jamshid Temirov, Jennifer Moore, Regina-Maria Kolaitis, Timothy I Shaw, Bing Bai, Junmin Peng, Richard W Kriwacki, J Paul Taylor
Expansion of a hexanucleotide repeat GGGGCC (G4C2) in C9ORF72 is the most common cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Transcripts carrying (G4C2) expansions undergo unconventional, non-ATG-dependent translation, generating toxic dipeptide repeat (DPR) proteins thought to contribute to disease. Here, we identify the interactome of all DPRs and find that arginine-containing DPRs, polyGly-Arg (GR) and polyPro-Arg (PR), interact with RNA-binding proteins and proteins with low complexity sequence domains (LCDs) that often mediate the assembly of membrane-less organelles...
October 20, 2016: Cell
Jessica E Maxwell, Scott K Sherman, James R Howe
Pancreatic neuroendocrine tumors (PNET) are rare tumors, but have been increasing in incidence. Although typically thought of as indolent, more than half of patients present with metastatic disease. For many years, the only mutations commonly known in these tumors were those in the MEN1 gene. Recently, the genetics underlying PNETs have been further defined through exome sequencing. The most frequent alterations found in sporadic PNETs are in MEN1, DAXX/ATRX, and a variety of genes in the mTOR pathway. Confirmation of these mutations has prompted trials with a number of drugs active in these pathways, and two drugs were eventually approved in 2011-sunitinib and everolimus...
October 15, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Olatunde Adesoro, Constance Shumba, John Kpamor, Jane Achan, Harriet Kivumbi, John Dada, Kolawole Maxwell, James Tibenderana, Madeline Marasciulo, Prudence Hamade, Olusola Oresanya, Joanita Nankabirwa, Ebenezer Baba
BACKGROUND: Innovative strategies are needed to reduce malaria mortality in high burden countries like Nigeria. Given that one of the important reasons for this high malaria mortality is delay in receiving effective treatment, improved access to such treatment is critical. Intramuscular artesunate could be used at lower-level facilities given its proven efficacy, ease of use and excellent safety profile. The objective of this study was therefore to explore health workers' perspectives on the possible use of intramuscular artesunate as definitive treatment for severe malaria at lower-level facilities, especially when access to referral facilities is challenging...
October 12, 2016: BMC Health Services Research
James P B O'Connor, Eric O Aboagye, Judith E Adams, Hugo J W L Aerts, Sally F Barrington, Ambros J Beer, Ronald Boellaard, Sarah E Bohndiek, Michael Brady, Gina Brown, David L Buckley, Thomas L Chenevert, Laurence P Clarke, Sandra Collette, Gary J Cook, Nandita M deSouza, John C Dickson, Caroline Dive, Jeffrey L Evelhoch, Corinne Faivre-Finn, Ferdia A Gallagher, Fiona J Gilbert, Robert J Gillies, Vicky Goh, John R Griffiths, Ashley M Groves, Steve Halligan, Adrian L Harris, David J Hawkes, Otto S Hoekstra, Erich P Huang, Brian F Hutton, Edward F Jackson, Gordon C Jayson, Andrew Jones, Dow-Mu Koh, Denis Lacombe, Philippe Lambin, Nathalie Lassau, Martin O Leach, Ting-Yim Lee, Edward L Leen, Jason S Lewis, Yan Liu, Mark F Lythgoe, Prakash Manoharan, Ross J Maxwell, Kenneth A Miles, Bruno Morgan, Steve Morris, Tony Ng, Anwar R Padhani, Geoff J M Parker, Mike Partridge, Arvind P Pathak, Andrew C Peet, Shonit Punwani, Andrew R Reynolds, Simon P Robinson, Lalitha K Shankar, Ricky A Sharma, Dmitry Soloviev, Sigrid Stroobants, Daniel C Sullivan, Stuart A Taylor, Paul S Tofts, Gillian M Tozer, Marcel van Herk, Simon Walker-Samuel, James Wason, Kaye J Williams, Paul Workman, Thomas E Yankeelov, Kevin M Brindle, Lisa M McShane, Alan Jackson, John C Waterton
Imaging biomarkers (IBs) are integral to the routine management of patients with cancer. IBs used daily in oncology include clinical TNM stage, objective response and left ventricular ejection fraction. Other CT, MRI, PET and ultrasonography biomarkers are used extensively in cancer research and drug development. New IBs need to be established either as useful tools for testing research hypotheses in clinical trials and research studies, or as clinical decision-making tools for use in healthcare, by crossing 'translational gaps' through validation and qualification...
October 11, 2016: Nature Reviews. Clinical Oncology
Susan M Maxwell, Pere Colls, Brooke Hodes-Wertz, David H McCulloh, Caroline McCaffrey, Dagan Wells, Santiago Munné, James A Grifo
OBJECTIVE: To determine whether undetected aneuploidy contributes to pregnancy loss after transfer of euploid embryos that have undergone array comparative genomic hybridization (aCGH). DESIGN: Case-control study. SETTING: University-based fertility center. PATIENT(S): Cases included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in miscarriage. Controls included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in a live birth...
September 27, 2016: Fertility and Sterility
Maribel Portillo, Michael A Maxwell, James H Frederich
A photochemical method for the direct synthesis of 1H-pyrazoles from pyridazine N-oxides was developed. This chemistry features a regioselective approach to nonsymmetrically substituted pyridazine N-oxides. Herein, we highlight the first strategic use of photoinduced ring-opening reactions of 1,2-diazine N-oxides for the preparative synthesis of nitrogen heterocycles.
October 7, 2016: Organic Letters
Dani Zoorob, Mickey Karram, Anna Stecher, Rose Maxwell, James Whiteside
OBJECTIVES: To identify litigation predictors among women with complications of transvaginal mesh. METHODS: Chart review and patient survey were conducted among women who had undergone a complication-related explant of a transvaginal prolapse or incontinence sling mesh. Trained study personnel administered a 57-question survey addressing subjective complaints related to bowel, bladder, sexual dysfunction, and development of pain or recurrent prolapse. These data were analyzed with respect to the subject's reported pursuit of litigation related to the mesh complication...
September 16, 2016: Female Pelvic Medicine & Reconstructive Surgery
Samantha M Gromek, James A deMayo, Andrew T Maxwell, Ashley M West, Christopher M Pavlik, Ziyan Zhao, Jin Li, Andrew J Wiemer, Adam Zweifach, Marcy J Balunas
Santacruzamate A (SCA) is a natural product isolated from a Panamanian marine cyanobacterium, previously reported to have potent and selective histone deacetylase (HDAC) activity. To optimize the enzymatic and cellular activity, 40 SCA analogues were synthesized in a systematic exploration of the zinc-binding group (ZBG), cap terminus, and linker region. Two cap group analogues inhibited proliferation of MCF-7 breast cancer cells, with analogous increased degranulation of cytotoxic T cells (CTLs), while one cap group analogue reduced CTL degranulation, indicative of suppression of the immune response...
November 1, 2016: Bioorganic & Medicinal Chemistry
Maxwell D Anderegg, Tyler H Gums, Liz Uribe, Christopher S Coffey, Paul A James, Barry L Carter
: Physician-pharmacist collaboration improves blood pressure, but there is little information on whether this model can reduce the gap in healthcare disparities. This trial involved 32 medical offices in 15 states. A clinical pharmacist was embedded within each office and made recommendations to physicians and patients in intervention offices. The purpose of the present analysis was to evaluate whether the pharmacist intervention could reduce healthcare disparities by improving blood pressure in high-risk racial and socioeconomic subjects compared with the control group...
November 2016: Hypertension
Maxwell T Vergo, Jeremy Whyman, Zhigang Li, Jeanne Kestel, Spencer L James, Christopher Rector, John M Salsman
BACKGROUND: Grief is a universal experience for patients living with a terminal illness, but it is not routinely measured. The Preparatory Grief in Advanced Cancer (PGAC) instrument has been used in Greece, but this is its first use in an American population with advanced cancer. OBJECTIVE: Our aim was to use the PGAC instrument in an American population of advanced cancer patients to explore demographic, clinical, and psychological factors that may predict higher preparatory grief...
September 1, 2016: Journal of Palliative Medicine
Rovel J Colaco, Henry S Park, Maxwell S Laurans, Veronica S Chiang, James B Yu, Zain A Husain
OBJECTIVES:  Stereotactic body radiotherapy (SBRT) is an emerging technique for maximizing tumor and pain control in selected patients with spinal metastases. Outcomes for those with concurrent brain metastases (CBM) have not been well-described previously. The goal of this study was to compare outcomes for patients with or without CBM treated with spine SBRT. METHODS:  Records of all patients treated with SBRT for spine metastases at our institution from January 2008 to January 2014 were reviewed...
2016: Curēus
Duraid Younan, Russell Griffin, Maxwell Thompson, Thomas Swain, Matthew Honkanen, James C Crosby, Chandra V Ellis, Jean- Francois Pittet, Jeffrey D Kerby
OBJECTIVE: Coagulopathy is known to be associated with burn injury. Our group has showed that, in spinal cord injury patients, coagulopathy is associated with an increase in VAP. We hypothesized that the same association exists between coagulopathic burn patients and ventilator associated events. METHODS: Patients admitted for burn care between January 1, 2011 and December 31, 2015 who required mechanical ventilation were included in the study. Ventilator-associated events (VAEs) as defined by the Center for Disease Control were categorized as no event, ventilator-associated condition, infection-related ventilator-associated complication, and possible VAP...
August 24, 2016: Shock
Ifeanyi C Onyeji, Wilson Sui, Mathew J Pagano, Aaron C Weinberg, Maxwell B James, Marissa C Theofanides, Doron S Stember, Christopher B Anderson, Peter J Stahl
PURPOSE: To investigate the impact of surgeon annual case volume on reoperation rates after inflatable penile prosthesis (IPP) surgery. MATERIALS AND METHODS: The New York Statewide Planning and Research Cooperative System database was queried for IPP cases from 1995 to 2014. Multivariate proportional hazards regression was performed to estimate the impact of surgeon annual case volume (ACV) on IPP reoperation rates. We stratified our analysis by indication for reoperation to determine if surgeon volume had a similar effect on infectious and non-infectious complications...
August 18, 2016: Journal of Urology
Wilson Sui, Ifeanyi C Onyeji, Justin T Matulay, Marissa C Theofanides, Maxwell B James, G Joel DeCastro, Sven Wenske
INTRODUCTION: To assess 30-day morbidity and mortality following partial nephrectomy (PN) and radical nephrectomy (RN) with relation to the administration of perioperative blood transfusions PBT). MATERIALS AND METHODS: The National Surgical Quality Improvement Program was queried for patients with malignant renal tumors (International Classification of Diseases Ninth Revision codes 189-189.2) who underwent RN (Current Procedure Terminology codes 50220, 50225, 50230, 50234, 50236, 50545, 50546, 50548) or PN (50240, 50543) between 2005-2013...
August 2016: Canadian Journal of Urology
Oliver R Gibson, James A Tuttle, Peter W Watt, Neil S Maxwell, Lee Taylor
Increased intracellular heat shock protein-72 (Hsp72) and heat shock protein-90α (Hsp90α) have been implicated as important components of acquired thermotolerance, providing cytoprotection during stress. This experiment determined the physiological responses characterising increases in Hsp72 and Hsp90α mRNA on the first and tenth day of 90-min heat acclimation (in 40.2 °C, 41.0 % relative humidity (RH)) or equivalent normothermic training (in 20 °C, 29 % RH). Pearson's product-moment correlation and stepwise multiple regression were performed to determine relationships between physiological [e...
August 11, 2016: Cell Stress & Chaperones
Sean L Maxwell, Richard A Fuller, Thomas M Brooks, James E M Watson
No abstract text is available yet for this article.
August 11, 2016: Nature
P Maxwell Courtney, James I Huddleston, Richard Iorio, David C Markel
BACKGROUND: Alternative payment models, such as bundled payments, aim to control rising costs for total knee arthroplasty (TKA) and total hip arthroplasty (THA). Without risk adjustment for patients who may utilize more resources, concerns exist about patient selection and access to care. The purpose of this study was to determine whether lower socioeconomic status (SES) was associated with increased resource utilization following TKA and THA. METHODS: Using the Michigan Arthroplasty Registry Collaborative Quality Initiative database, we reviewed a consecutive series of 4168 primary TKA and THA patients over a 3-year period...
July 16, 2016: Journal of Arthroplasty
Wilson Sui, Ifeanyi C Onyeji, Maxwell B James, Peter J Stahl, Arindam RoyChoudhury, Christopher B Anderson
INTRODUCTION: Priapism is a urologic emergency with a tendency to recur in some patients. The frequency of, time to, and risk factors for priapism recurrence have not been well characterized. AIM: To identify predictors of priapism readmission. METHODS: We used the New York Statewide Planning and Research Cooperative System database to identify patients presenting to emergency departments with priapism from 2005 through 2014. Patients were tracked up to 12 months after initial presentation...
October 2016: Journal of Sexual Medicine
Pavel Babica, Rimma Zurabian, Esha R Kumar, Rajus Chopra, Maxwell J Mianecki, Joon-Suk Park, Libor Jaša, James E Trosko, Brad L Upham
Methoxychlor (MXC) and vinclozolin (VIN) are well-recognized endocrine disrupting chemicals known to alter epigenetic regulations and transgenerational inheritance; however, non-endocrine disruption endpoints are also important. Thus, we determined the effects of MXC and VIN on the dysregulation of gap junctional intercellular communication (GJIC) and activation of mitogen-activated protein kinases (MAPKs) in WB-F344 rat liver epithelial cells. Both chemicals induced a rapid dysregulation of GJIC at non-cytotoxic doses, with 30 min EC50 values for GJIC inhibition being 10 µM for MXC and 126 µM for VIN...
September 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
Carl A James, Ashley G B Willmott, Alan J Richardson, Peter W Watt, Neil S Maxwell
PURPOSE: Ischaemic preconditioning (IP) has been shown to be ergogenic for endurance performance in normothermic conditions and alleviate physiological strain under hypoxia, potentially through haemodynamic and/or metabolic mechanisms. Exertional hyperthermia is characterised by competition for blood flow between the muscles and skin, an enhanced metabolic strain and impaired endurance performance. This study investigated the effect of IP on the determinants of endurance performance, through an incremental exercise test in the heat...
September 2016: European Journal of Applied Physiology
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