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https://www.readbyqxmd.com/read/28724078/genome-wide-association-study-of-developing-leaves-heat-tolerance-during-vegetative-growth-stages-in-a-sorghum-association-panel
#1
Junping Chen, Ratan Chopra, Chad Hayes, Geoffrey Morris, Sandeep Marla, John Burke, Zhanguo Xin, Gloria Burow
Heat stress reduces grain yield and quality worldwide. Enhancing heat tolerance of crops at all developmental stages is one of the essential strategies required for sustaining agricultural production especially as frequency of temperature extremes escalates in response to climate change. Although heat tolerance mechanisms have been studied extensively in model plant species, little is known about the genetic control underlying heat stress responses of crop plants at the vegetative stage under field conditions...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28723274/identifying-voxels-at-risk-for-progression-in-glioblastoma-based-on-dosimetry-physiologic-and-metabolic-mri
#2
Mekhail Anwar, Annette M Molinaro, Olivier Morin, Susan M Chang, Daphne A Haas-Kogan, Sarah J Nelson, Janine M Lupo
Despite the longstanding role of radiation in cancer treatment and the presence of advanced, high-resolution imaging techniques, delineation of voxels at-risk for progression remains purely a geometric expansion of anatomic images, missing subclinical disease at risk for recurrence while treating potentially uninvolved tissue and increasing toxicity. This remains despite the modern ability to precisely shape radiation fields. A striking example of this is the treatment of glioblastoma, a highly infiltrative tumor that may benefit from accurate identification of subclinical disease...
July 19, 2017: Radiation Research
https://www.readbyqxmd.com/read/28722611/phase-2a-open-label-4-escalating-dose-randomized-multicenter-study-evaluating-the-safety-and-activity-of-ferroquine-ssr97193-plus-artesunate-versus-amodiaquine-plus-artesunate-in-african-adult-men-with-uncomplicated-plasmodium-falciparum-malaria
#3
Christian Supan, Ghyslain Mombo-Ngoma, Maryvonne Kombila, Carmen L Ospina Salazar, Jana Held, Bertrand Lell, Cathy Cantalloube, Elhadj Djeriou, Bernhards Ogutu, John Waitumbi, Nekoye Otsula, Duncan Apollo, Mark E Polhemus, Peter G Kremsner, Douglas S Walsh
Artemisinin-based combination therapies are recommended as first-line agents for treating uncomplicated Plasmodium falciparum malaria. Ferroquine, a 4-aminoquinolone, is a novel long-acting combination partner for fast-acting drugs like artesunate (AS). We did a small phase 2a, multicenter, open-label, safety-focused dose-ranging randomized study of ferroquine at three African hospitals: two Gabonese and one Kenyan. We recruited adult men with symptomatic uncomplicated P. falciparum monoinfection. Four escalating doses of ferroquine (100, 200, 400, and 600 mg) were assessed in sequence, versus an amodiaquine comparator...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722141/failure-to-rescue-as-a-nurse-sensitive-indicator
#4
Jane Mushta, Kathy L Rush, Elizabeth Andersen
PROBLEM: The aim of this concept analysis was to clarify failure to rescure as a nurse-sensitive indicator. Although the concept of failure to rescue as a nurse-sensitive outcome has appeared in the nursing literature for over a decade, conceptual clarity is needed to address its variable and ambiguous use in health care. METHODS: Walker and Avant's eight-stage method of concept analysis was used to explore the concept of failure to rescue in nursing practice. Twenty-one papers were retrieved from Cumulative Index of Nursing and Allied Health Literature (CINAHL) and MEDLINE databases and selected for review and synthesis...
July 19, 2017: Nursing Forum
https://www.readbyqxmd.com/read/28721887/external-beam-radiation-therapy-with-a-brachytherapy-boost-versus-radical-prostatectomy-in-gleason-pattern-5-prostate-cancer-a-population-based-cohort-study
#5
Chenyang Wang, Amar U Kishan, Mitchell Kamrava, Michael L Steinberg, Christopher R King
PURPOSE: Patients with prostate cancer (PCa) containing Gleason pattern (GP) 5 disease experience a greater and earlier incidence of prostate cancer-specific mortality (PCSM) than general PCa patients. This affords the statistical power to compare PCSM outcomes among different treatment modalities even when restricting the analysis to patients treated in the modern era. The purpose of the present study was to compare the survival outcomes among patients with GP 5 PCa on needle core biopsy or transurethral resection of the prostate who underwent extremely dose-escalated radiation therapy (RT; exemplified by external beam RT with a brachytherapy boost [EBRT + BT]) versus radical prostatectomy (RP) in the modern era...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28721686/rationale-for-initiation-and-titration-of-the-basal-insulin-glp-1ra-fixed-ratio-combination-products-ideglira-and-iglarlixi-for-the-management-of-type-2-diabetes
#6
REVIEW
Virginia Valentine, Jennifer Goldman, Jay H Shubrook
Type 2 diabetes (T2D) is a progressive disease affecting glucose regulation and a major cause of morbidity and mortality globally. Many patients are not escalated up the treatment ladder appropriately despite failing to achieve glycemic control, with barriers such as fear of hypoglycemia, weight gain, and treatment burden recognized as factors. Exogenous basal insulin is titrated to address control of fasting plasma glucose and may preserve residual β-cell function, thus promoting a greater endogenous prandial insulin response...
July 18, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28721503/salinity-drives-the-virioplankton-abundance-but-not-production-in-tropical-coastal-lagoons
#7
Pedro C Junger, André M Amado, Rodolfo Paranhos, Anderson S Cabral, Saulo M S Jacques, Vinicius F Farjalla
Viruses are the most abundant components of microbial food webs and play important ecological and biogeochemical roles in aquatic ecosystems. Virioplankton is regulated by several environmental factors, such as salinity, turbidity, and humic substances. However, most of the studies aimed to investigate virioplankton regulation were conducted in temperate systems combining a limited range of environmental variables. In this study, virus abundance and production were determined and their relation to bacterial and limnological variables was assessed in 20 neighboring shallow tropical coastal lagoons that present wide environmental gradients of turbidity (2...
July 18, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28721067/phase-i-dose-escalation-study-of-long-acting-pasireotide-in-patients-with-neuroendocrine-tumors
#8
James C Yao, Jennifer A Chan, Alain C Mita, Madan G Kundu, Karina Hermosillo Reséndiz, Ke Hu, Shoba Ravichandran, Jonathan R Strosberg, Edward M Wolin
This phase I study aimed at determining the maximum tolerated dose (MTD) and characterizing the safety, tolerability, pharmacokinetics (PKs), and efficacy of pasireotide in patients with advanced neuroendocrine tumors (NETs). Patients were enrolled in two phases: dose-escalation phase (to determine the MTD) at a starting dose of 80 mg pasireotide long-acting release (LAR) i.m. followed by a dose-expansion phase (to evaluate safety and prelimi-nary efficacy). Associations between PK/pharmacodynamic parameters and clinical outcomes were evaluated using linear regression analysis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28719715/long-term-recurrence-free-survival-after-an-unplanned-reduction-in-radiotherapy-for-hpv-positive-oropharyngeal-scc-two-cases-and-a-review-of-the-literature
#9
Jason Liu, David Goldenberg, Salah Almokadem, Henry Crist, Heath B Mackley
There is currently no clear distinction between the treatment of HPV-positive and HPV-negative oropharyngeal squamous cell carcinoma (OPSCC). HPV-positive OPSCC has been demonstrated to be more radiosensitive than its HPV-negative counterpart. Despite this, patients with HPV-positive OPSCC continue to receive a full dose of radiation (70 Gy) outside clinical trials. However, this high dose comes with considerable morbidities, including severe mucositis, dysphagia, and xerostomia. We describe the cases of 2 patients with HPV-positive OPSCC who received two cycles of high-dose cisplatin at 100 mg/m(2) on 3 separate days, along with concurrent radiotherapy at 50 Gy in 25 fractions for one and 46 Gy in 23 fractions for the other...
July 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28719249/applying-sensory-modulation-to-mental-health-inpatient-care-to-reduce-seclusion-and-restraint-a-case-control-study
#10
Charlotte Andersen, Anne Kolmos, Kjeld Andersen, Volkmar Sippel, Elsebeth Stenager
BACKGROUND: Clinical training in managing conflicts and preventing violence seldom contains sensory modulation (SM) as a method to de-escalate and prevent restraint and seclusion. Sensory-based interventions promote adaptive regulation of arousal and emotion. SM is a complementary approach that is associated with reduced rates of seclusion and restraint in mental healthcare, but there is need for more research in this area. AIMS: Using SM to reduce restraint and seclusion in inpatient mental health care...
July 18, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28719152/a-first-in-human-phase-i-multicenter-open-label-dose-escalation-study-of-the-oral-raf-vegfr-2-inhibitor-raf265-in-locally-advanced-or-metastatic-melanoma-independent-from-braf-mutation-status
#11
Benjamin Izar, William Sharfman, F Stephen Hodi, Donald Lawrence, Keith T Flaherty, Ravi Amaravadi, Kevin B Kim, Igor Puzanov, Jeffrey Sosman, Reinhard Dummer, Simone M Goldinger, Lyhping Lam, Shefali Kakar, Zhongwen Tang, Oliver Krieter, David F McDermott, Michael B Atkins
To establish the maximum tolerated dose (MTD), dose-limiting toxicities (DLT), safety profile, and anti-tumor efficacy of RAF265. We conducted a multicenter, open-label, phase-I, dose-escalation trial of RAF265, an orally available RAF kinase/VEGFR-2 inhibitor, in patients with advanced or metastatic melanoma. Pharmacokinetic (PK) analysis, pharmacodynamics (PD) and tumor response assessment were conducted. We evaluated metabolic tumor response by 18[F]-fluorodeoxyglucose-positron-emission tomography (FDG-PET), tissue biomarkers using immunohistochemistry (IHC), and modulators of angiogenesis...
July 18, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28717396/intraoperative-radiotherapy-review-of-techniques-and-results
#12
REVIEW
Avinash Pilar, Meetakshi Gupta, Sarbani Ghosh Laskar, Siddhartha Laskar
Intraoperative radiotherapy (IORT) is a technique that involves precise delivery of a large dose of ionising radiation to the tumour or tumour bed during surgery. Direct visualisation of the tumour bed and ability to space out the normal tissues from the tumour bed allows maximisation of the dose to the tumour while minimising the dose to normal tissues. This results in an improved therapeutic ratio with IORT. Although it was introduced in the 1960s, it has seen a resurgence of popularity with the introduction of self-shielding mobile linear accelerators and low-kV IORT devices, which by eliminating the logistical issues of transport of the patient during surgery for radiotherapy or building a shielded operating room, has enabled its wider use in the community...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28717369/association-of-irritable-bowel-syndrome-and-sleep-apnea-in-patients-referred-to-sleep-laboratory
#13
Farzin Ghiasi, Babak Amra, Vahid Sebghatollahi, Fatemeh Azimian
BACKGROUND: Irritable bowel syndrome (IBS) is assumed as one of the most frequent gastrointestinal disorders, which decreases the patient's quality of life. IBS pathogenesis, however, is not clearly defined. It seems that sleep apnea induces or escalates IBS clinical symptoms. This study aims at evaluating of IBS prevalence in patients, who are afflicted or are not afflicted with sleep apnea. MATERIALS AND METHODS: This was a case-control study, which was implemented in a sleep laboratory located in Isfahan, Iran...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28717037/impact-of-a-carbapenem-antimicrobial-stewardship-program-on-patient-outcomes
#14
Valerie Xue Fen Seah, Rina Yue Ling Ong, Ashley Shi Yuan Lim, Chia Yin Chong, Natalie Woon Hui Tan, Koh Cheng Thoon
Antimicrobial stewardship programs (ASPs) aim to improve appropriate antimicrobials use. However, concerns of the negative consequences from accepting ASP interventions exist, particularly when de-escalation or discontinuation of broad-spectrum antibiotics are recommended. Hence, we sought to evaluate the impact on clinical outcomes when ASP interventions for inappropriate carbapenem use were accepted or rejected by primary providers.We retrospectively reviewed all carbapenem prescriptions deemed inappropriate according to institutional guidelines with ASP interventions between July 2011 and December 2014...
July 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28716050/working-for-patient-safety-a-qualitative-study-of-women-s-help-seeking-during-acute-perinatal-events
#15
Nicola Mackintosh, Susanna Rance, Wendy Carter, Jane Sandall
BACKGROUND: Women and their relatives can play an important role in early detection and help seeking for acute perinatal events. Recent UK reports indicate that patient-professional partnership in 'working for safety' can be difficult to achieve in practice, sometimes with catastrophic consequences. This research explored the experiences of women and relatives who had experienced early warning signs about their condition and sought help in escalating care. METHODS: Secondary analysis of case study data which included qualitative interviews with 22 women purposively sampled on account of experiencing a step up in care and 4 of their relatives from two NHS Trusts in England during 2010...
July 17, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28715794/an-introduction-to-the-emergency-department-adult-clinical-escalation-protocol-ed-ace
#16
Eoin Coughlan, Una Geary, Abel Wakai, Ronan O'Sullivan, John Browne, Eilish McAuliffe, Marie Ward, Fiona McDaid, Conor Deasy
PURPOSE OF THE STUDY: This study demonstrates how a participatory action research approach was used to address the challenge of the early and effective detection of the deteriorating patient in the ED setting. The approach enabled a systematic approach to patient monitoring and escalation of care to be developed to address the wide-ranging spectrum of undifferentiated presentations and the phases of ED care from triage to patient admission. This paper presents a longitudinal patient monitoring system, which aims to provide monitoring and escalation of care, where necessary, of adult patients from triage to admission to hospital in a manner that is feasible in the unique ED environment...
November 14, 2016: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28712978/local-radiotherapy-intensification-for-locally-advanced-non-small-cell-lung-cancer-a-call-to-arms
#17
REVIEW
Noah S Kalman, Elisabeth Weiss, Paul R Walker, Julian G Rosenman
Chemoradiotherapy, the standard of care for locally advanced non-small-cell lung cancer (NSCLC), often fails to eradicate all known disease. Despite advances in chemotherapeutic regimens, locally advanced NSCLC remains a difficult disease to treat, and locoregional failure remains common. Improved radiographic detection can identify patients at significant risk of locoregional failure after definitive treatment, and newer methods of escalating locoregional treatment may allow for improvements in locoregional control with acceptable toxicity...
June 16, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28712934/donor-lymphocyte-infusions-used-to-treat-mixed-chimeric-and-high-risk-patient-populations-in-the-relapsed-and-non-relapsed-settings-after-allogeneic-transplant-for-hematologic-malignancies-are-associated-with-high-5-year-survival-if-persistent-full-donor-chimerism
#18
Lauren E Caldemeyer, Luke P Akard, John R Edwards, Anand Tandra, Dawn R Wagenknecht, Michael J Dugan
Mixed chimerism (MC), a persistent or increasing number of host cells after allogeneic hematopoietic stem cell transplant (HSCT), is a predictor of disease relapse. Donor lymphocyte infusions (DLI) have the potential to enhance the graft vs. malignancy (GvM) effect, reducing the risk of relapse in patients with MC. Hence, in addition to utilizing DLI in the relapsed setting, there is a motivation to pursue pre-emptive DLI for patients in complete remissions (CR) after HSCT. To assess the safety and efficacy of DLI, records of 86 patients who received DLI between 2003 and 2015 at a single institution were studied retrospectively...
July 13, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28712586/platelet-testing-to-guide-aspirin-dose-adjustment-in-pediatric-patients-after-cardiac-surgery
#19
Sirisha Emani, David Zurakowski, Michelle Mulone, James A DiNardo, Cameron C Trenor, Sitaram M Emani
OBJECTIVES: Thrombosis is associated with increased morbidity and mortality in pediatric patients undergoing cardiac surgery. Although aspirin commonly is used for thromboprophylaxis, the utility of laboratory-based tests that assess aspirin efficacy have not been evaluated. We sought to determine the relationship between platelet aggregation testing and aspirin dose adjustment on thrombosis rates in this population. METHODS: Pediatric patients undergoing cardiac surgery who received aspirin and underwent platelet testing were studied retrospectively...
June 20, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28712302/overcoming-the-hydrolytic-lability-of-a-reaction-intermediate-in-production-of-protein-drug-conjugates-conjugation-of-an-acyclic-nucleoside-phosphonate-to-a-model-carrier-protein
#20
Shengsheng Xu, Igor A Kaltashov
Acquired immunodeficiency syndrome (AIDS) remains one of the most serious public health challenges and a significant cause of mortality for certain populations. Despite the large number of antiretrovirals developed in the past two decades, the inability of small molecule therapeutics to target HIV reservoirs directly creates a significant obstacle to their effective utilization. Indeed, achieving the desired therapeutic outcome in the absence of an effective means of targeted delivery must rely on dosage escalation, which frequently causes severe toxicity...
July 17, 2017: Molecular Pharmaceutics
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