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https://www.readbyqxmd.com/read/28645045/hydra-amphiphiles-using-three-heads-and-one-tail-to-influence-aggregate-formation-and-to-kill-pathogenic-bacteria
#1
Tara M Gallagher, John N Marafino, Brenden K Wimbish, Brandi Volkers, Gabriel Fitzgerald, Kristin McKenna, Jason Floyd, Nicholas T Minahan, Brenna Walsh, Kirstie Thompson, David Bruno, Monica Paneru, Sybelle Djikeng, Stephanie Masters, Suma Haji, Kyle Seifert, Kevin L Caran
Hydra amphiphiles mimic the morphology of the mythical multi-headed creatures for which they are named. Likewise, when faced with a pathogenic bacterium, some hydra derivatives are as destructive as their fabled counterparts were to their adversaries. This report focuses on eight new tricephalic (triple-headed), single-tailed amphiphiles. Each amphiphile has a mesitylene (1,3,5-trimethylbenzene) core, two benzylic trimethylammonium groups and one dimethylalkylammonium group with a linear hydrophobe ranging from short (C8H17) to ultralong (C22H45)...
June 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28644240/corneal-stiffening-by-a-bacteriochlorophyll-derivative-with-dextran-and-near-infrared-light-effect-of-shortening-irradiation-time-up-to-1-minute
#2
Jurriaan Brekelmans, Alexandra Goz, Mor M Dickman, Alexander Brandis, Xiaomeng Sui, H Daniel Wagner, Rudy M M A Nuijts, Avigdor Scherz, Arie L Marcovich
PURPOSE: The aim of this study is to determine the effect of variation of the exposure time of near-infrared irradiation on corneal stiffening after a bacteriochlorophyll derivative (WST11) with dextran (WST-D) application. METHODS: One hundred four paired eyes of 3-month-old New Zealand White rabbits were included in this study. Fifty-two eyes (ex vivo n = 34, in vivo n = 18) were mechanically deepithelialized, treated topically with WST-D, and irradiated at 10 mW/cm using a diode laser at 755 nm for 1, 5, or 30 minutes...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28643996/age-related-outcome-of-patients-after-traumatic-brain-injury-a-single-centre-observation
#3
Rolf Erlebach, Alberto Pagnamenta, Stephanie Klinzing, Federica Stretti, Silvia Cottini, Reto Schüpbach, Peter Steiger, Giovanna Brandi
BACKGROUND: Study-purpose is to analyze clinical features of patients with traumatic brain injury (TBI), their age-related outcomes and determinants of long- term outcome. METHODS: This retrospective cohort study was conducted in a level I University Swiss trauma center. Consecutive patients with moderate to severe TBI admitted for more than 48 hours to the Intensive Care Unit were included. Patients' and trauma characteristics, management during ICU-stay, prognostic scores and long- term outcomes were analyzed...
June 22, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28641483/good-performance-of-platinum-based-chemotherapy-for-high-grade-gastroenteropancreatic-and-unknown-primary-neuroendocrine-neoplasms
#4
Giovanni Brandi, Marco Paragona, Davide Campana, Nicole Brighi, Arrigo Bondi, Maria Abbondanza Pantaleo, Jody Corbelli, Maria Aurelia Barbera, Guido Biasco
To evaluate efficacy and safety of platinum and etoposide combination in the treatment of advanced gastroenteropancreatic (GEP) and unknown primary (CUP) neuroendocrine carcinomas (NEC), we analysed the records of 21 consecutive patients treated with this regimen from 1999 to 2012. Objective responses were obtained in 11 patients (52%) and disease stability (DS) in 5 (24%). Median progression-free survival (PFS) was 7 months (95% CI, 5.33-8.66). Median overall survival (OS) was 16 months (95% CI, 14.97-17...
June 22, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28639029/cox2-induction-a-mechanism-of-endocrine-breast-cancer-resistance
#5
Brandi L Clark, Michael A Murphy, Landry K Kamdem
PURPOSE: Urine prostaglandin E2 (PGE2) levels have shown to be a risk factor of breast cancer, and the use of nonsteroidal anti-inflammatory drugs (NSAIDs) is known to be beneficial in preventing breast cancer risk and/or recurrence with or without aromatase inhibitors. We hypothesized that the use of an aromatase inhibitor triggers the activation of the inflammatory pathway via release of PGE2. METHODS: A single oral 25 mg dose of an aromatase inhibitor (exemestane) was given to 14 healthy postmenopausal female volunteers...
June 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28636659/retraction-a-high-throughput-screening-compatible-strategy-for-the-identification-of-inositol-pyrophosphate-kinase-inhibitors
#6
Brandi M Baughman, Huanchen Wang, Yi An, Dmitri Kireev, Michael A Stashko, Henning J Jessen, Kenneth H Pearce, Stephen V Frye, Stephen B Shears
No abstract text is available yet for this article.
2017: PloS One
https://www.readbyqxmd.com/read/28634236/alternative-evolutionary-pathways-for-drug-resistant-small-colony-variant-mutants-in-staphylococcus-aureus
#7
Sha Cao, Douglas L Huseby, Gerrit Brandis, Diarmaid Hughes
Staphylococcus aureus is known to generate small colony variants (SCVs) that are resistant to aminoglycoside antibiotics and can cause persistent and recurrent infections. The SCV phenotype is unstable, and compensatory mutations lead to restored growth, usually with loss of resistance. However, the evolution of improved growth, by mechanisms that avoid loss of antibiotic resistance, is very poorly understood. By selection with serial passaging, we isolated and characterized different classes of extragenic suppressor mutations that compensate for the slow growth of small colony variants...
June 20, 2017: MBio
https://www.readbyqxmd.com/read/28632611/stamping-out-pain-with-brandy-anesthesia-mcdowell-s-cystolithotomy-of-polk
#8
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Anesthesiology
https://www.readbyqxmd.com/read/28626804/reflectance-based-detection-for-long-term-environmental-monitoring
#9
Brandy J Johnson, Anthony P Malanoski, Jeffrey S Erickson, Ray Liu, Allison R Remenapp, David A Stenger, Martin H Moore
Here, the potential of colorimetric sensors utilizing porphyrin indicators for long term environmental monitoring is demonstrated. Prototype devices based on commercial color sensing chips (six per device) were combined with in-house developed algorithms for data analysis. The devices are intended to provide real-time sensing of threats. An initial outdoor data set was collected using prototype devices with occasional spiked exposure to targets. This data was supported by similar data collected in a controlled indoor environment...
June 2017: Heliyon
https://www.readbyqxmd.com/read/28625103/the-robustness-of-false-memory-for-emotional-pictures
#10
Brandy A Bessette-Symons
Emotional material is commonly reported to be more accurately recognised; however, there is substantial evidence of increased false alarm rates (FAR) for emotional material and several reports of stronger influences on response bias than accuracy. This pattern is more frequently reported for words than pictures. Research on the mechanisms underlying bias differences has mostly focused on word lists under short retention intervals. This article presents four series of experiments examining recognition memory for emotional pictures while varying arousal and the control over the content of the pictures at two retention intervals, and one study measuring the relatedness of the series picture sets...
June 17, 2017: Memory
https://www.readbyqxmd.com/read/28616147/stereodivergent-diels-alder-initiated-organocascades-employing-%C3%AE-%C3%AE-unsaturated-acylammonium-salts-scope-mechanism-and-application
#11
Mikail E Abbasov, Brandi M Hudson, Dean J Tantillo, Daniel Romo
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides, and a chiral isothiourea organocatalyst under mild conditions. We describe extensions of stereodivergent DAL organocascades to other racemic dienes bearing pendant secondary and tertiary alcohols, and application to a formal synthesis of (+)-dihydrocompactin is described...
February 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28610992/anti-liver-cancer-activity-in-vitro-and-in-vivo-induced-by-2-pyridyl-2-3-thiazole-derivatives
#12
Thiago David Dos Santos Silva, Larissa Mendes Bomfim, Ana Carolina Borges da Cruz Rodrigues, Rosane Borges Dias, Caroline Brandi Schlaepfer Sales, Clarissa Araújo Gurgel Rocha, Milena Botelho Pereira Soares, Daniel Pereira Bezerra, Marcos Veríssimo de Oliveira Cardoso, Ana Cristina Lima Leite, Gardenia Carmen Gadelha Militão
A total of 24 hybrid compounds containing pyridyl and 1,3-thiazole moieties were screened against HL-60 (leukemia), MCF-7 (breast adenocarcinoma), HepG2 (hepatocellular carcinoma), NCI-H292 (lung carcinoma) human tumor cell lines and non-tumor cells (PBMC, human peripheral blood mononuclear cells). Most of them were highly potent in at least one cell line tested (IC50≤3μM), being HL-60 the most sensitive and HepG2 the most resistant cell line. Among them, TAP-07 and TP-07 presented cytotoxic activity in all tumor cell lines, including HepG2 (IC50 2...
June 10, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28609724/diagnostic-accuracy-of-a-two-item-drug-abuse-screening-test-dast-2
#13
Quyen Q Tiet, Yani E Leyva, Rudolf H Moos, Brandy Smith
OBJECTIVE: Drug use is prevalent and costly to society, but individuals with drug use disorders (DUDs) are under-diagnosed and under-treated, particularly in primary care (PC) settings. Drug screening instruments have been developed to identify patients with DUDs and facilitate treatment. The Drug Abuse Screening Test (DAST) is one of the most well-known drug screening instruments. However, similar to many such instruments, it is too long for routine use in busy PC settings. This study developed and validated a briefer and more practical DAST for busy PC settings...
June 8, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28605145/a-two-step-strategy-to-visually-identify-molecularly-imprinted-polymers-for-tagged-proteins
#14
Alexander Brandis, Eran Partouche, Tamar Yechezkel, Yoseph Salitra, Vladimir Shkoulev, Avigdor Scherz, Flavio Grynszpan
A practical and relatively simple method to identify molecularly imprinted polymers capable of binding proteins via the molecular tagging (epitope-like) approach has been developed. In our two step method we first challenge a previously obtained anti-tag molecularly imprinted polymer with a small molecule including the said tag of choice (a biotin derivative as shown here or other) connected to a linker bound to a second biotin moiety. An avidin molecule partially decorated with fluorescent labels is then allowed to bind the available biotin derivative associated to the polymer matrix...
June 12, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28604139/major-bleeding-risk-and-healthcare-economic-outcomes-of-nonvalvular-atrial-fibrillation-patients-newly-initiated-with-oral-anticoagulant-therapy-in-the-real-world-setting
#15
Jay Lin, Jeffrey Trocio, Kiran Gupta, Jack Mardekian, Melissa Lingohr-Smith, Brandy Menges, Min You, Anagha Nadkarni
AIMS: This study compared the risk for major bleeding (MB) and healthcare economic outcomes of patients with nonvalvular atrial fibrillation (NVAF) after initiating treatment with apixaban versus rivaroxaban, dabigatran, or warfarin. METHODS: NVAF patients who initiated apixaban, rivaroxaban, dabigatran, or warfarin were identified from the IMS Pharmetrics Plus database (1/1/2013-9/30/2015). Propensity score matching (PSM) was used to balance differences in patient characteristics between study cohorts: patients treated with apixaban versus rivaroxaban, apixaban versus dabigatran, and apixaban versus warfarin...
June 10, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28603895/metastatic-neoplasms-to-the-pancreas-diagnosed-by-fine-needle-aspiration-biopsy-cytology-a-15-year-retrospective-analysis
#16
Sasha L T Raymond, Deanne Yugawa, Karen H F Chang, Brandy Ena, Pamela S Tauchi-Nishi
BACKGROUND: Metastatic tumors to the pancreas are rarely encountered and diagnostically challenging. We aspired to determine the incidence and origin of all metastases to the pancreas at our institution, and to examine their clinicopathologic and cytomorphologic features. We also sought to ascertain the effect of endoscopic ultrasound (EUS) guidance implementation. METHODS: A search of our database was undertaken to review all pancreatic FNA and/or CNB examined from January 2000 through December 2014...
June 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28602803/patient-preference-in-primary-care-provider-type
#17
Brandi Leach, Margaret Gradison, Perri Morgan, Christine Everett, Michael J Dill, Justine Strand de Oliveira
BACKGROUND: Given the growing roles of nurse practitioners (NPs) and physician assistants (PAs), patients are increasingly able to choose their primary care provider type. Studies examining patient preferences among provider types are limited and ours is the first to examine reasons for patients' provider type preferences. METHODS: Using data from the 2014 Association of American Medical Colleges' (AAMC) Consumer Survey of Health Care Access, we used qualitative analysis to identify themes in open text responses of reasons for respondents' provider type preference (N = 4220)...
June 8, 2017: Healthcare
https://www.readbyqxmd.com/read/28602418/use-of-stereotactic-radiosurgery-in-elderly-and-very-elderly-patients-with-brain-metastases-to-limit-toxicity-associated-with-whole-brain-radiation-therapy
#18
Linda Chen, Colette Shen, Kristin J Redmond, Brandi R Page, Megan Kummerlowe, Todd Mcnutt, Chetan Bettegowda, Daniele Rigamonti, Michael Lim, Lawrence Kleinberg
PURPOSE: We evaluated the toxicity associated with stereotactic radiosurgery (SRS) and whole brain radiation therapy (WBRT) in elderly and very elderly patients with brain metastases, as the role of SRS in geriatric patients who would traditionally receive WBRT is unclear. METHODS AND MATERIALS: We conducted a retrospective review of elderly patients (aged 70-79 years) and very elderly patients (aged ≥80 years) with brain metastases who underwent RT from 2010 to 2015 at Johns Hopkins Hospital...
July 15, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28601643/heterogeneous-cadherin-expression-and-multicellular-aggregate-dynamics-in-ovarian-cancer-dissemination
#19
Yuliya Klymenko, Jeffrey Johnson, Brandi Bos, Rachel Lombard, Leigh Campbell, Elizabeth Loughran, M Sharon Stack
Epithelial ovarian carcinoma spreads via shedding of cells and multicellular aggregates (MCAs) from the primary tumor into peritoneal cavity, with subsequent intraperitoneal tumor cell:mesothelial cell adhesion as a key early event in metastatic seeding. Evaluation of human tumor extracts and tissues confirms that well-differentiated ovarian tumors express abundant E-cadherin (Ecad), whereas advanced lesions exhibit upregulated N-cadherin (Ncad). Two expression patterns are observed: "mixed cadherin," in which distinct cells within the same tumor express either E- or Ncad, and "hybrid cadherin," wherein single tumor cell(s) simultaneously expresses both cadherins...
June 8, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28601477/family-perspectives-of-traumatically-brain-injured-patient-pain-behaviors-in-the-intensive-care-unit
#20
Brandy L Vanderbyl, Céline Gélinas
Behavioral scales allow for the pain assessment of vulnerable critically ill patients who are unable to self-report. However, validity of the use of such scales is limited in traumatic brain injury patients with an altered level of consciousness as a result of the different way that these patients express pain. Family participation is considered as an important component of pain assessment for those unable to self-report, but research in this area is minimal so far. This study aimed to describe what behaviors family caregivers deemed relevant to pain for patients with a traumatic brain injury with an altered level of consciousness in the intensive care unit...
June 7, 2017: Pain Management Nursing: Official Journal of the American Society of Pain Management Nurses
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