keyword
MENU ▼
Read by QxMD icon Read
search

Pratt

keyword
https://www.readbyqxmd.com/read/28350453/diazaphenoxazines-and-diazaphenothiazines-synthesis-of-the-correct-isomers-reveals-they-are-highly-reactive-radical-trapping%C3%A2-antioxidants
#1
Evan A Haidasz, Derek A Pratt
The preparation of 2,4-diazaphenothiazines and 2,4-diazaphenoxazines via a copper-catalyzed intramolecular amination is described. Literature approaches which utilize easily accessed (2'-aminophenyl) 4-pyri(mi)dyl sulfides undergo a Smiles rearrangement that gives rise to the 1,3-diaza derivatives instead, confirmed by X-ray crystallography. Inversion of the polarity of the cyclization avoids the rearrangement and affords the desired products. Preliminary kinetic studies suggest that 2,4-diazaphenothiazines and diazaphenoxazines, but not the 1,3-diaza isomers, are remarkably potent radical-trapping antioxidants...
March 28, 2017: Organic Letters
https://www.readbyqxmd.com/read/28345079/-not-just-a-receiver-understanding-patient-behavior-in-the-hospital-environment
#2
Sonali R Mishra, Shefali Haldar, Ari H Pollack, Logan Kendall, Andrew D Miller, Maher Khelifi, Wanda Pratt
Patient engagement leads to better health outcomes and experiences of health care. However, existing patient engagement systems in the hospital environment focus on the passive receipt of information by patients rather than the active contribution of the patient or caregiver as a partner in their care. Through interviews with hospitalized patients and their caregivers, we identify ways that patients and caregivers actively participate in their care. We describe the different roles patients and caregivers assume in interacting with their hospital care team...
May 7, 2016: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
https://www.readbyqxmd.com/read/28342200/telomere-length-is-a-critical-determinant-for-survival-in-multiple-myeloma
#3
Sam Hyatt, Rhiannon E Jones, Nicole H Heppel, Julia W Grimstead, Chris Fegan, Graham H Jackson, Robert Hills, James M Allan, Guy Pratt, Chris Pepper, Duncan M Baird
The variable clinical outcomes of Multiple Myeloma (MM) patients are incompletely defined by current prognostication tools. We examined the clinical utility of high-resolution telomere length analysis as a prognostic marker in MM. Cohort stratification, using a previously determined length threshold for telomere dysfunction, revealed that patients with short telomeres had a significantly shorter overall survival (P < 0·0001; HR = 3·4). Multivariate modelling using forward selection identified International Staging System (ISS) stage as the most important prognostic factor, followed by age and telomere length...
March 24, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28341221/a-systematic-review-of-obesity-disparities-research
#4
REVIEW
Charlotte A Pratt, Catherine M Loria, Sonia S Arteaga, Holly L Nicastro, Maria Lopez-Class, Janet M de Jesus, Pothur Srinivas, Christine Maric-Bilkan, Lisa Schwartz Longacre, Josephine E A Boyington, Abera Wouhib, Nara Gavini
CONTEXT: A review of interventions addressing obesity disparities could reveal gaps in the literature and provide guidance on future research, particularly for populations with a high prevalence of obesity and obesity-related cardiometabolic risk. EVIDENCE ACQUISITION: A systematic review of clinical trials in obesity disparities research that were published in 2011-2016 in PubMed/MEDLINE resulted in 328 peer-reviewed articles. Articles were excluded if they had no BMI, weight, or body composition measure as primary outcome or were foreign (n=201); were epidemiologic or secondary data analyses of clinical trials (n=12); design or protocol papers (n=54); systematic reviews (n=3); or retracted or duplicates (n=9)...
March 21, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28340973/multilevel-interventions-targeting-obesity-research-recommendations-for-vulnerable-populations
#5
June Stevens, Charlotte Pratt, Josephine Boyington, Cheryl Nelson, Kimberly P Truesdale, Dianne S Ward, Leslie Lytle, Nancy E Sherwood, Thomas N Robinson, Shirley Moore, Shari Barkin, Ying Kuen Cheung, David M Murray
INTRODUCTION: The origins of obesity are complex and multifaceted. To be successful, an intervention aiming to prevent or treat obesity may need to address multiple layers of biological, social, and environmental influences. METHODS: NIH recognizes the importance of identifying effective strategies to combat obesity, particularly in high-risk and disadvantaged populations with heightened susceptibility to obesity and subsequent metabolic sequelae. To move this work forward, the National Heart, Lung, and Blood Institute, in collaboration with the NIH Office of Behavioral and Social Science Research and NIH Office of Disease Prevention convened a working group to inform research on multilevel obesity interventions in vulnerable populations...
January 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28338830/varying-influences-of-aldosterone-on-the-plasma-potassium-concentration-in-blacks-and-whites
#6
Wanzhu Tu, George J Eckert, Brian S Decker, John Howard Pratt
BACKGROUND: Aldosterone acts to restrain the extracellular potassium (K+) concentration. Blacks have on average lower plasma aldosterone concentrations (PACs) than Whites. Whether this ethnic difference is associated with similar changes in the concentration of K+ is unclear. METHODS: Subjects were Blacks and Whites from an observational study of blood pressure regulation. PAC was known to be significantly lower in Blacks than Whites. We sought to test the hypothesis that the concentration of K+ remains constant despite variability in PAC...
February 27, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28338540/occupational-contact-dermatitis-in-north-american-print-machine-operators-referred-for-patch-testing-retrospective-analysis-of-cross-sectional-data-from-the-north-american-contact-dermatitis-group-1998-to-2014
#7
Erin M Warshaw, Solveig L Hagen, Donald V Belsito, Joel G DeKoven, Howard I Maibach, C G Toby Mathias, Kathryn A Zug, Denis Sasseville, Matthew J Zirwas, Joseph F Fowler, Anthony F Fransway, Vincent A DeLeo, James G Marks, Melanie D Pratt, James S Taylor
BACKGROUND: Little is known about the epidemiology of contact dermatitis (CD) in print machine operators (PMOs). OBJECTIVE: The aims of this study were to estimate the prevalence of CD and characterize clinically relevant and occupationally related allergens among PMOs undergoing patch testing. METHODS: This was a retrospective cross-sectional analysis of the North American Contact Dermatitis Group data from 1998 to 2014. RESULTS: Of 39,332 patch-tested patients, 132 (0...
March 23, 2017: Dermatitis
https://www.readbyqxmd.com/read/28336475/intraoperative-rupture-of-ovarian-dermoid-cysts-in-the-pediatric-and-adolescent-population-should-this-change-your-surgical-management
#8
Krista J Childress, Gisselle Perez-Milicua, Julie Hakim, Oluyemisi Adeyemi-Fowode, Jennifer L Bercaw-Pratt, Xiomara M Santos, Jennifer E Dietrich
STUDY OBJECTIVE: 1) To determine the incidence of chemical peritonitis after cystectomy for ovarian dermoid cysts with intraoperative cyst rupture in the pediatric and adolescent population. 2) To examine the intraoperative and postoperative outcomes of cystectomies performed for ovarian dermoid cysts by laparoscopy and laparotomy, especially those with intraoperative cyst rupture. DESIGN: A retrospective cohort study of females who underwent ovarian cystectomy with proven ovarian dermoid pathology between July 2007 and July 2015...
March 20, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28335031/ethics-of-health-policy-and-systems-research-a-scoping-review-of-the-literature
#9
Bridget Pratt, Amy Paul, Adnan A Hyder, Joseph Ali
Health policy and systems research (HPSR) is increasingly funded and undertaken as part of health system strengthening efforts worldwide. HPSR ethics is also a relatively new and emerging field, with numerous normative and descriptive questions that have largely not been considered. Normative questions include what ethical principles and values should guide HPSR. Descriptive questions include what ethical concerns arise when conducting HPSR. A small but growing body of scholarly work characterizes the various ethics issues inherent in HPSR...
March 15, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28333908/tuberculosis-united-states-2016
#10
Kristine M Schmit, Zimy Wansaula, Robert Pratt, Sandy F Price, Adam J Langer
In 2016, a total of 9,287 new tuberculosis (TB) cases were reported in the United States; this provisional* count represents the lowest number of U.S. TB cases on record and a 2.7% decrease from 2015 (1). The 2016 TB incidence of 2.9 cases per 100,000 persons represents a slight decrease compared with 2015 (-3.4%) (Figure). However, epidemiologic modeling demonstrates that if similar slow rates of decline continue, the goal of U.S. TB elimination will not be reached during this century (2). Although current programs to identify and treat active TB disease must be maintained and strengthened, increased measures to identify and treat latent TB infection (LTBI) among populations at high risk are also needed to accelerate progress toward TB elimination...
March 24, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28330707/structure-based-feeding-strategies-a-key-component-of-child-nutrition
#11
Maija B Taylor, Elizabeth Emley, Mercedes Pratt, Dara R Musher-Eizenman
OBJECTIVE: This study examined the relationship between structure, autonomy promotion, and control feeding strategies and parent-reported child diet. PARTICIPANTS: Participants (N = 497) were parents of children ages 2.5 to 7.5 recruited from Amazon Mechanical Turk. This sample was a Caucasian (79%), educated sample (61% college graduates) with most reports from mothers (76%). METHODS AND MEASURES: Online survey including measures of parent feeding strategies and child dietary intake...
March 19, 2017: Appetite
https://www.readbyqxmd.com/read/28320350/views-of-somali-women-and-men-on-the-use-of-faith-based-messages-promoting-breast-and-cervical-cancer-screening-for-somali-women-a-focus-group-study
#12
Rebekah Pratt, Sharif Mohamed, Wali Dirie, Nimo Ahmed, Michael VanKeulen, Huda Ahmed, Nancy Raymond, Kola Okuyemi
BACKGROUND: Screening rates for breast and cervical cancer for Muslim women in the United States are low, particularly for first-generation immigrants. Interpretations of the Muslim faith represent some of the barriers for breast and cervical cancer screening. Working to understand how faith influences breast and cervical screening for Somali women, and working with the community to identify and utilize faith-based assets for promoting screening, may lead to life-saving changes in screening behaviors...
March 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28318253/aminyl-radical-generation-via-tandem-norrish-type-i-photocleavage-%C3%AE-fragmentation-independent-generation-and-reactivity-of-the-2-deoxyadenosin-n6-yl-radical
#13
Liwei Zheng, Markus Griesser, Derek A Pratt, Marc M Greenberg
Formal hydrogen atom abstraction from the nitrogen-hydrogen bonds in purine nucleosides produces reactive intermediates that are important in nucleic acid oxidation. Herein we describe an approach for the independent generation of the purine radical resulting from hydrogen atom abstraction from the N6-amine of 2'-deoxyadenosine (dA•). The method involves sequential Norrish Type I photocleavage of a ketone (7b) and β-fragmentation of the initially formed alkyl radical (8b) to form dA• and acetone. The formation of dA• was followed by laser flash photolysis, which yields a transient with λmax ≈ 340 nm and a broader weaker absorption centered at ∼560 nm...
March 20, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28315820/evaluating-differential-nuclear-dna-yield-rates-and-osteocyte-numbers-among-human-bone-tissue-types-a-synchrotron-radiation-micro-ct-approach
#14
Janna M Andronowski, Amy Z Mundorff, Isaac V Pratt, Jon M Davoren, David M L Cooper
Molecular human identification has conventionally focused on DNA sampling from dense, weight-bearing cortical bone tissue, typically from femora or tibiae. A comparison of skeletal elements from three contemporary individuals demonstrated that elements with high quantities of cancellous bone yielded nuclear DNA at the highest rates, suggesting that preferentially sampling cortical bone may be suboptimal (Mundorff & Davoren, 2014). Despite these findings, the reason for the differential DNA yields between cortical and cancellous bone tissues remains unknown...
March 6, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28306156/posttraumatic-stress-disorder-antipsychotic-use-and-risk-of-dementia-in-veterans
#15
Elizabeth E Roughead, Nicole L Pratt, Lisa M Kalisch Ellett, Emmae N Ramsay, John D Barratt, Philip Morris, Graeme Killer
OBJECTIVES: To examine the risk of dementia associated with posttraumatic stress disorder (PTSD) and the contribution of antipsychotic use to this risk. DESIGN: Retrospective cohort study SETTING: Australia. Administrative claims data from the Australian Government Department of Veterans' Affairs were used. PARTICIPANTS: Male Vietnam veterans aged 55 to 65 at baseline (2001-02) with no preexisting dementia diagnosis (N = 15,612). MEASUREMENTS: The association between PTSD and dementia was assessed over 12 years of follow-up...
March 17, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28303975/a-conserved-inter-domain-communication-mechanism-regulates-the-atpase-activity-of-the-aaa-protein-drg1
#16
Michael Prattes, Mathias Loibl, Gertrude Zisser, Daniel Luschnig, Lisa Kappel, Ingrid Rössler, Manuela Grassegger, Altijana Hromic, Elmar Krieger, Karl Gruber, Brigitte Pertschy, Helmut Bergler
AAA-ATPases fulfil essential roles in different cellular pathways and often act in form of hexameric complexes. Interaction with pathway-specific substrate and adaptor proteins recruits them to their targets and modulates their catalytic activity. This substrate dependent regulation of ATP hydrolysis in the AAA-domains is mediated by a non-catalytic N-terminal domain. The exact mechanisms that transmit the signal from the N-domain and coordinate the individual AAA-domains in the hexameric complex are still the topic of intensive research...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300084/alopecia-areata
#17
REVIEW
C Herbert Pratt, Lloyd E King, Andrew G Messenger, Angela M Christiano, John P Sundberg
Alopecia areata is an autoimmune disorder characterized by transient, non-scarring hair loss and preservation of the hair follicle. Hair loss can take many forms ranging from loss in well-defined patches to diffuse or total hair loss, which can affect all hair-bearing sites. Patchy alopecia areata affecting the scalp is the most common type. Alopecia areata affects nearly 2% of the general population at some point during their lifetime. Skin biopsies of affected skin show a lymphocytic infiltrate in and around the bulb or the lower part of the hair follicle in the anagen (hair growth) phase...
March 16, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28294551/the-ignite-pharmacogenetics-working-group-an-opportunity-for-building-evidence-with-pharmacogenetic-implementation-in-a-real-world-setting
#18
REVIEW
L H Cavallari, A L Beitelshees, K V Blake, L G Dressler, J D Duarte, A Elsey, J N Eichmeyer, P E Empey, J P Franciosi, J K Hicks, A M Holmes, Ljb Jeng, C R Lee, J J Lima, N A Limdi, J Modlin, A O Obeng, N Petry, V M Pratt, T C Skaar, S Tuteja, D Voora, M Wagner, K W Weitzel, R A Wilke, J F Peterson, J A Johnson
No abstract text is available yet for this article.
March 14, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28286346/integrating-theoretical-models-with-functional-neuroimaging
#19
Michael S Pratte, Frank Tong
The development of mathematical models to characterize perceptual and cognitive processes dates back almost to the inception of the field of psychology. Since the 1990s, human functional neuroimaging has provided for rapid empirical and theoretical advances across a variety of domains in cognitive neuroscience. In more recent work, formal modeling and neuroimaging approaches are being successfully combined, often producing models with a level of specificity and rigor that would not have been possible by studying behavior alone...
February 2017: Journal of Mathematical Psychology
https://www.readbyqxmd.com/read/28282912/predictors-of-nightly-subjective-objective-sleep-discrepancy-in-poor-sleepers-over-a-seven-day-period
#20
Vanessa Herbert, Daniel Pratt, Richard Emsley, Simon D Kyle
This study sought to examine predictors of subjective/objective sleep discrepancy in poor sleepers. Forty-two individuals with insomnia symptoms (mean age = 36.2 years, 81% female) were recruited to take part in a prospective study which combined seven days of actigraphy with daily assessment of sleep perceptions, self-reported arousal, sleep effort, and mood upon awakening. A high level of intra-individual variability in measures of sleep discrepancy was observed. Multilevel modelling revealed that higher levels of pre-sleep cognitive activity and lower mood upon awakening were significantly and independently predictive of the underestimation of total sleep time...
March 9, 2017: Brain Sciences
keyword
keyword
120514
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"