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https://www.readbyqxmd.com/read/29228376/effects-of-cyclophosphamide-cyp-and-or-doxorubicin-dox-in-a-murine-model-of-post-chemotherapy-cognitive-impairment
#1
Timothy J Flanigan, Julie E Anderson, Ikram Elayan, Antiño R Allen, Sherry A Ferguson
Post-chemotherapy cognitive impairment, or PCCI, is a common complaint, particularly among breast cancer patients. However, the exact nature of PCCI appears complex. To model the human condition, ovariectomized C57BL/6J mice were treated iv weekly for 4 weeks with saline, 2 mg/kg doxorubicin (DOX), 50 mg/kg cyclophosphamide (CYP), or DOX+CYP. For the subsequent 10 weeks, mice were assessed on several behavioral tests, including those measuring spatial learning and memory. After sacrifice, hippocampal spine density and morphology in the dentate gyrus, CA1, and CA3 regions were measured...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29227906/to-disinfect-or-not-to-disinfect-in-postharvest-research-on-the-fungal-decay-of-apple
#2
Matthias Naets, Mattias van Dael, Els Vanstreels, Dirk Daelemans, Pieter Verboven, Bart Nicolaï, Wannes Keulemans, Annemie Geeraerd
Postharvest losses of fruit and vegetables can reach up to 30%, the main cause being microbial decay. For apple fruit, mostly fungal pathogens, such as Penicillium expansum, Colletotrichum spp., Neofabraea spp. and Botrytis cinerea, are important. As such losses are unsustainable in many ways, it is necessary that research is conducted to prevent them. Generally, for plants and fruit grown under non-sterile field conditions, disinfection is carried out prior to the start of a phytopathological experiment. The motivation for this practice is the removal of background contamination so that it will not affect the experimental outcome and its interpretation...
December 6, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29227460/neuropathic-like-ocular-pain-and-nonocular-comorbidities-correlate-with-dry-eye-symptoms
#3
Victoria S Chang, Terri P Rose, Carol L Karp, Roy C Levitt, Constantine Sarantopoulos, Anat Galor
OBJECTIVE: To evaluate the association between dry eye (DE) symptoms and neuropathic-like ocular pain (NOP) features, chronic pain conditions, depression, and anxiety in patients presenting for routine ophthalmic examinations. METHODS: Two hundred thirty-three consecutive patients ≥18 years of age presenting to a comprehensive eye clinic between January and August 2016 were included in this study. Information on demographics, chronic pain conditions, medication use, DE symptoms (dry eye questionnaire, DEQ5), NOP complaints (burning; wind, light, and temperature sensitivity), depression, and anxiety indices (patient health questionnaire 9, PHQ-9 and symptom checklist 90-revised, SCL-90-R) were collected for each individual...
December 7, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29226553/design-and-properties-of-a-novel-radiopaque-injectable-apatitic-calcium-phosphate-cement-suitable-for-image-guided-implantation
#4
Myriam Le Ferrec, Charlotte Mellier, Florian Boukhechba, Thomas Le Corroller, Daphné Guenoun, Franck Fayon, Valérie Montouillout, Christelle Despas, Alain Walcarius, Dominique Massiot, François-Xavier Lefèvre, Caroline Robic, Jean-Claude Scimeca, Jean-Michel Bouler, Bruno Bujoli
An injectable purely apatitic calcium phosphate cement (CPC) was successfully combined to a water-soluble radiopaque agent (i.e., Xenetix® ), to result in an optimized composition that was found to be as satisfactory as poly(methyl methacrylate) (PMMA) formulations used for vertebroplasty, in terms of radiopacity, texture and injectability. For that purpose, the Xenetix dosage in the cement paste was optimized by injection of the radiopaque CPC in human cadaveric vertebrae under classical PMMA vertebroplasty conditions, performed by interventional radiologists familiar with this surgical procedure...
December 11, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29225812/the-utility-of-whole-body-vibration-exercise-in-haemodialysis-patients-a-pilot-study
#5
Arthur Doyle, Karen Chalmers, David J Chinn, Fiona McNeill, Nicola Dall, Christopher H Grant
Background: Exercise improves physical capacity in patients with end-stage renal disease on haemodialysis (HD), but few patients engage in it. Whole-body vibration exercise (WBVE) is a novel protocol that has been shown to benefit frail elderly patients' rehabilitation. We assessed the utility of WBVE before HD sessions and tested methods to inform the design of a randomized controlled trial (RCT). Methods: Physical condition and quality of life were assessed at enrolment and repeated 2 weeks later in a pilot study of 49 patients undergoing regular HD...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29225599/promoter-specificity-and-efficacy-in-conditional-and-inducible-transgenic-targeting-of-lung-macrophages
#6
Alexandra L McCubbrey, Kristen C Allison, Alisa B Lee-Sherick, Claudia V Jakubzick, William J Janssen
Conditional and inducible Cre-loxP systems are used to target gene deletion to specific cell lineages and tissues through promoter-restricted expression of the bacterial DNA recombinase, Cre. Although Cre-loxP systems are widely used to target gene deletion in lung macrophages, limited data are published on the specificity and efficiency of "macrophage targeting" Cre lines. Using R26-stopfl/fl-TdTomato and tetOn-GFP reporter lines, we assessed the specificity and efficiency of four commercially available Cre driver lines that are often considered "macrophage specific...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29225375/folded-concave-penalized-sparse-linear-regression-sparsity-statistical-performance-and-algorithmic-theory-for-local-solutions
#7
Hongcheng Liu, Tao Yao, Runze Li, Yinyu Ye
This paper concerns the folded concave penalized sparse linear regression (FCPSLR), a class of popular sparse recovery methods. Although FCPSLR yields desirable recovery performance when solved globally, computing a global solution is NP-complete. Despite some existing statistical performance analyses on local minimizers or on specific FCPSLR-based learning algorithms, it still remains open questions whether local solutions that are known to admit fully polynomial-time approximation schemes (FPTAS) may already be sufficient to ensure the statistical performance, and whether that statistical performance can be non-contingent on the specific designs of computing procedures...
November 2017: Mathematical Programming
https://www.readbyqxmd.com/read/29224700/preventing-weakness-and-stiffness-a-top-priority-for-health-and-social-care
#8
REVIEW
Muir Gray, Kenny Butler
With growing evidence that sarcopenia, disability and frailty can be prevented with physical activity, people living with pain, stiffness and weakness due to a musculoskeletal condition should be offered physical activity as a preventive strategy. By changing beliefs and attitudes towards ageing and raising the value and importance of physical activity, disability can be avoided or delayed and the costly burden of social care lessened. The effects of ageing and the effects of muscle strength loss are often confused...
April 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29224699/measuring-physical-capacity-and-performance-in-older-people
#9
REVIEW
Sarah E Lamb, David J Keene
We highlight the important differences between the concepts of capacity and performance and highlight the development of measures and their application in common conditions encountered in health care practice with older people. A number of expert consensus projects have concluded that mobility, balance, muscle strength and dexterity are core domains for capacity measurement in older people. Instruments with evidence of adequate psychometric properties for the evaluation of capacity in response to intervention programmes include the Short Physical Performance Battery, hand grip strength, mini-BEST and 9-hole pegboard test...
April 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29224698/sarcopenia
#10
REVIEW
Nicholas Fuggle, Sarah Shaw, Elaine Dennison, Cyrus Cooper
Sarcopenia is a condition that is characterized by loss of muscle mass, muscle strength and muscle functional impairment with ageing. The definition of sarcopenia has been through various permutations; however, an enormous recent breakthrough is the inclusion of the condition in the ICD-10 classification of diseases. This chapter covers the background issues regarding definition before describing the epidemiology of the disease according to human and environmental factors. It then provides a practical guide for the assessment of sarcopenia in a clinical setting and finishes with advice on present treatment and the exciting frontiers of future therapies...
April 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29224421/hydrolysis-setting-properties-and-in%C3%A2-vitro-characterization-of-wollastonite-newberyite-bone-cement-mixtures
#11
Tibor Sopcak, Lubomir Medvecky, Maria Giretova, Radoslava Stulajterova, Juraj Durisin
Bone cements based on magnesium phosphates such as newberyite (N; MgHPO4.3H2O) have been shown as potential bone substitutes due to their biocompatibility, biodegradability and ability to support osteoblast differentiation and proliferation. Newberyite can hydrolyze to hydrated magnesium phosphate compounds (e.g. bobierite (Mg3(PO4)2.8H2O)) at alkaline conditions. In this study, 25 and 50 wt% of crystalline β -wollastonite (woll; CaSiO3) was admixed to newberyite powder in order to both enhance the acid-base hydrolysis of newberyite and to produce a functional bone cement...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29223594/femoral-neck-fractures-after-removal-of-hardware-in-healed-trochanteric-fractures
#12
REVIEW
Antonio Barquet, Peter V Giannoudis, Andrés Gelink
INTRODUCTION: Hardware removal in healed trochanteric fractures (TF) in the absence of infection or significant mechanical complications is rarely indicated. However, in patients with persistent pain, prominent material and discomfort in the activities of daily living, the implant is eventually removed. Publications of ipsilateral femoral neck fracture after removal of implants from healed trochanteric fractures (FNFARIHTF) just because of pain or discomfort are rare. The purpose of this systematic review of the literature is to report on the eventual risk factors, the mechanisms, the clinical presentation, and frequency, and to pay special emphasis in their prevention...
December 2017: Injury
https://www.readbyqxmd.com/read/29222718/treatment-of-stress-urinary-incontinence-with-a-mobile-app-factors-associated-with-success
#13
Emma Nyström, Ina Asklund, Malin Sjöström, Hans Stenlund, Eva Samuelsson
INTRODUCTION AND HYPOTHESIS: Stress urinary incontinence is common among women. First-line treatment includes pelvic floor muscle training (PFMT) and lifestyle advice, which can be provided via a mobile app. The efficacy of app-based treatment has been demonstrated in a randomized controlled trial (RCT). In this study, we aimed to analyze factors associated with successful treatment. METHODS: Secondary analysis of data from the RCT. At baseline and 3-month follow-up, participants (n = 61) answered questions about symptoms, quality of life, background, and PFMT...
December 8, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/29221460/goldenpics-a-golden-gate-derived-modular-cloning-system-for-applied-synthetic-biology-in-the-yeast-pichia-pastoris
#14
Roland Prielhofer, Juan J Barrero, Stefanie Steuer, Thomas Gassler, Richard Zahrl, Kristin Baumann, Michael Sauer, Diethard Mattanovich, Brigitte Gasser, Hans Marx
BACKGROUND: State-of-the-art strain engineering techniques for the host Pichia pastoris (syn. Komagataella spp.) include overexpression of homologous and heterologous genes, and deletion of host genes. For metabolic and cell engineering purposes the simultaneous overexpression of more than one gene would often be required. Very recently, Golden Gate based libraries were adapted to optimize single expression cassettes for recombinant proteins in P. pastoris. However, an efficient toolbox allowing the overexpression of multiple genes at once was not available for P...
December 8, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29221048/quantum-memory-and-non-demolition-measurement-of-single-phonon-state-with-nitrogen-vacancy-centers-ensemble
#15
Rui-Xia Wang, Kang Cai, Zhang-Qi Yin, Gui-Lu Long
In a diamond, the mechanical vibration-induced strain can lead to interaction between the mechanical mode and the nitrogen-vacancy (NV) centers. In this work, we propose to utilize the strain-induced coupling for the quantum non-demolition (QND) single phonon measurement and memory in a diamond. The single phonon in a diamond mechanical resonator can be perfectly absorbed and emitted by the NV centers ensemble (NVE) with adiabatically tuning the microwave driving. An optical laser drives the NVE to the excited states, which have much larger coupling strength to the mechanical mode...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29220702/the-effect-of-subjective-awareness-measures-on-performance-in-artificial-grammar-learning-task
#16
Ivan I Ivanchei, Nadezhda V Moroshkina
Systematic research into implicit learning requires well-developed awareness-measurement techniques. Recently, trial-by-trial measures have been widely used. However, they can increase complexity of a study because they are an additional experimental variable. We tested the effects of these measures on performance in artificial grammar learning study. Four groups of participants were assigned to different awareness measures conditions: confidence ratings, post-decision wagering, decision strategy attribution or none...
December 5, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/29220619/the-effect-of-whole-body-vibration-on-lower-body-resistance-detraining-in-college-age-women
#17
Keston G Lindsay, David L Nichols, Ronald W Davis, David D Marshall
PURPOSE: This study explored the effect of whole-body vibration (WBV) using accelerations of 2.56 g to 7.68 g on lower-body detraining. METHODS: All participants (N = 20) were trained using a lower-body resistance-training program for 30 min twice per week from Week 0 to Week 6. At the end of the program, they were randomly assigned to a control group that performed no further training or a WBV group that performed a progressive static WBV program. Data for the 5-repetition-maximum (5RM) squat and extensors and flexors of the knee and ankle were collected at Weeks 0, 6, 8, 10, and 12 for all participants...
December 8, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29220541/yoga-for-stroke-rehabilitation
#18
REVIEW
Maggie Lawrence, Francisco T Celestino Junior, Hemilianna Hs Matozinho, Lindsay Govan, Jo Booth, Jane Beecher
BACKGROUND: Stroke is a major health issue and cause of long-term disability and has a major emotional and socioeconomic impact. There is a need to explore options for long-term sustainable interventions that support stroke survivors to engage in meaningful activities to address life challenges after stroke. Rehabilitation focuses on recovery of function and cognition to the maximum level achievable, and may include a wide range of complementary strategies including yoga.Yoga is a mind-body practice that originated in India, and which has become increasingly widespread in the Western world...
December 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29219896/an-analysis-of-training-loads-in-elite-under-18-australian-rule-football-players
#19
Emily E Cust, Nathan Elsworthy, Sam Robertson
Differences in training loads (TL) between under 18 (U18) Australian Rules football (AF) State Academy selected and non-selected players were investigated. Players were categorised relating to their highest representative level; State Academy selected (n = 9) and TAC Cup level players (n = 38). Data were obtained from an online training-monitoring tool implemented to collect player training and match information across a 20 - week period during the regular season. Parameters modelled included AF skills, strength, and other sport training sessions...
December 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29219419/enhanced-strength-through-nanotwinning-in-the-thermoelectric-semiconductor-insb
#20
Guodong Li, Sergey I Morozov, Qingjie Zhang, Qi An, Pengcheng Zhai, G Jeffrey Snyder
The conversion efficiency (zT) of thermoelectric (TE) materials has been enhanced over the last two decades, but their engineering applications are hindered by the poor mechanical properties, especially the low strength at working conditions. Here we used density functional theory (DFT) to show a strength enhancement in the TE semiconductor InSb arising from the twin boundaries (TBs). This strengthening effect leads to an 11% enhancement of the ideal shear strength in flawless crystalline InSb where this theoretical strength is considered as an upper bound on the attainable strength for a realistic material...
November 24, 2017: Physical Review Letters
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