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https://www.readbyqxmd.com/read/29790354/-opioids-and-new-trends-in-pain-therapy
#1
Jan Lejčko
Opioids are well known for their ability to reduce the perception of pain without a loss of consciousness. However, the influence of opioids on organism is very complex. Clinical pharmacology of currently available opioid analgesics is determined by three major factors - their opioid receptor properties, pharmacokinetic properties and genetic polymorphism in the opiate receptor and cytochrome P450 isoform. In acute severe pain are opioids very efficient. Long-term experience with opioid analgesia in patients with cancer pain has shown high favorable risk/benefit ratio...
2018: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/29780524/identification-of-pt-based-catalysts-for-propane-dehydrogenation-via-a-probability-analysis
#2
Shenjun Zha, Guodong Sun, Tengfang Wu, Jiubing Zhao, Zhi-Jian Zhao, Jinlong Gong
The intrinsic errors due to functionals are always a concern on the reliability of the predicted catalytic performance by density functional theory. This paper describes a probability-based computational screening study, which has successfully identified an optimal bimetallic alloy (Pt3 In) for the propane dehydrogenation reaction (PDH). Considering DFT uncertainty, Pt3 In was found to have an activity comparable to that of pure Pt and Pt3 Sn. Meanwhile, Pt3 In shows a considerable improvement in the propylene selectivity compared with pure Pt...
April 28, 2018: Chemical Science
https://www.readbyqxmd.com/read/29778979/exploring-the-relationship-between-stability-and-variability-of-the-centre-of-mass-and-centre-of-pressure
#3
Roshanth Rajachandrakumar, Jotvarinder Mann, Alison Schinkel-Ivy, Avril Mansfield
BACKGROUND: There are competing perspectives in the literature regarding the role of movement variability in quiet standing and balance control. Some view high variability as indicative of poor balance control and a contributor to increased fall risk, whereas others view variability as beneficial in providing sensory information that aids balance control. RESEARCH QUESTION: This study aimed to help to clarify the role of variability in balance control by testing two competing hypotheses: that increased variability would lead to instability, or that increased variability would improve stability, where stability is defined as the ability to respond to a perturbation...
May 9, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29775908/mirror-therapy-for-improving-lower-limb-motor-function-and-mobility-after-stroke-a-systematic-review-and-meta-analysis
#4
REVIEW
P Broderick, F Horgan, C Blake, M Ehrensberger, D Simpson, K Monaghan
BACKGROUND: Mirror therapy has been proposed as an effective intervention for lower limb rehabilitation post stroke. RESEARCH QUESTION: This systematic review with meta-analysis examined if lower limb mirror therapy improved the primary outcome measures of muscle tone and motor function and the secondary outcome measures balance characteristics, functional ambulation, walking velocity, passive range of motion (PROM) for ankle dorsiflexion and gait characteristics in patients with stroke compared to other interventions...
May 12, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29775379/decision-to-return-to-sport-participation-after-anterior-cruciate-ligament-reconstruction-part-ii-self-reported-and-functional-performance-outcomes
#5
Jennifer L Werner, Julie P Burland, Carl G Mattacola, Jenny Toonstra, Robert A English, Jennifer S Howard
CONTEXT:   Anterior cruciate ligament (ACL) reconstruction (ACLR) is the most commonly used method for helping athletes regain function and return to preinjury activity levels after ACL injury. Outcomes after ACLR have suggested that athletes return to a level of function that would support a return to sport participation; however, in a recent meta-analysis, pooled return rates were only 55%. It is unclear whether this discrepancy is a result of functional impairments. OBJECTIVE:   To compare patient-reported outcomes (PROs), dynamic balance, dynamic functional performance, strength, and muscular endurance in athletes who have returned to sport (RTS) and athletes who have not returned to sport (NRTS) after ACLR...
May 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29773683/adaptive-control-of-dynamic-balance-in-human-gait-on-a-split-belt-treadmill
#6
Tom J W Buurke, Claudine J C Lamoth, Danique Vervoort, Lucas H V van der Woude, Rob den Otter
Human bipedal gait is inherently unstable and staying upright requires adaptive control of dynamic balance. Little is known about adaptive control of dynamic balance in reaction to long-term, continuous perturbations. We examined how dynamic balance control adapts to a continuous perturbation in gait, by letting people walk faster with one leg than the other on a treadmill with two belts (i.e. split-belt walking). In addition, we assessed whether changes in mediolateral dynamic balance control coincide with changes in energy use during split-belt adaptation...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29773457/effect-of-increasing-flow-when-grooving-during-phacoemulsification
#7
Brian A Bird, Rhett S Thomson, Lance A Stutz, Joshua B Heczko, Ashlie A Bernhisel, William R Barlow, Brian Zaugg, Jeff H Pettey, Randall J Olson
PURPOSE: To determine optimum flow settings on the Centurion Vision System during the grooving step in cataract surgery. SETTING: John A. Moran Eye Center Laboratory, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: Intact porcine lenses hardened by formalin and placed in a chamber designed to simulate the anterior chamber of the eye were used to test flow rate settings at 20 mL/min, 40 mL/min, and 60 mL/min...
May 15, 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29772442/cognitive-and-hippocampus-biochemical-changes-following-sleep-deprivation-in-the-adult-male-rat
#8
Ebrahim Nabaee, Mahnaz Kesmati, Ali Shahriari, Lotfollah Khajehpour, Mozhgan Torabi
Sleep deprivation (SD) influences physiological processes such as cognitive function. The balance of oxidant and antioxidant markers, neurotrophic factors and magnesium are affected by sleep deprivation but there is no difference between pre and post training sleep deprivation. This study was designed to investigate memory retrieval and biochemical factors such as oxidant and antioxidant enzyme, brain-derived neurotrophic factor (BDNF) and magnesium levels in the hippocampus following pre and post-training sleep deprivation...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29771620/self-reported-functional-mobility-balance-confidence-and-prosthetic-use-are-associated-with-daily-step-counts-among-individuals-with-a-unilateral-transtibial-amputation
#9
Jaclyn Megan Sions, Elisa Sarah Arch, John Robert Horne
BACKGROUND: Adults postamputation are not meeting physical activity recommendations. Physical activity is an important consideration in prosthetic prescription. The objective of this study was to determine if functional mobility, balance confidence, and prosthetic use are associated with physical activity among adults with a lower-limb amputation. METHODS: This study recruited patients aged 18-85 years with unilateral transtibial amputations. The Cumulative Illness Rating Scale was used to determine comorbidity burden...
June 1, 2018: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/29768490/purification-of-complex-samples-implementation-of-a-modular-and-reconfigurable-droplet-based-microfluidic-platform-with-cascaded-deterministic-lateral-displacement-separation-modules
#10
Eloise Pariset, Catherine Pudda, François Boizot, Nicolas Verplanck, Frédéric Revol-Cavalier, Jean Berthier, Aurélie Thuaire, Vincent Agache
Particle separation in microfluidic devices is a common problematic for sample preparation in biology. Deterministic lateral displacement (DLD) is efficiently implemented as a size-based fractionation technique to separate two populations of particles around a specific size. However, real biological samples contain components of many different sizes and a single DLD separation step is not sufficient to purify these complex samples. When connecting several DLD modules in series, pressure balancing at the DLD outlets of each step becomes critical to ensure an optimal separation efficiency...
2018: PloS One
https://www.readbyqxmd.com/read/29765053/ambient-ammonia-synthesis-via-palladium-catalyzed-electrohydrogenation-of-dinitrogen-at-low-overpotential
#11
Jun Wang, Liang Yu, Lin Hu, Gang Chen, Hongliang Xin, Xiaofeng Feng
Electrochemical reduction of N2 to NH3 provides an alternative to the Haber-Bosch process for sustainable, distributed production of NH3 when powered by renewable electricity. However, the development of such process has been impeded by the lack of efficient electrocatalysts for N2 reduction. Here we report efficient electroreduction of N2 to NH3 on palladium nanoparticles in phosphate buffer solution under ambient conditions, which exhibits high activity and selectivity with an NH3 yield rate of ~4.5 μg mg-1 Pd h-1 and a Faradaic efficiency of 8...
May 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29762312/the-influence-of-occupation-on-wellbeing-as-experienced-by-the-elderly-a-systematic-review
#12
Christina Jessen-Winge, Mille Nyboe Petersen, Anne-Le Morville
OBJECTIVE: The objective of this review was to synthesize knowledge regarding which types of occupations the elderly perceive as important to and supporting their overall wellbeing. INTRODUCTION: Being active is an important part of managing the daily challenges of advanced old age. Occupational therapy and occupational science are based on the premise that a person's occupations are intertwined with their health and are thus needed for them to experience a meaningful life and improve their wellbeing...
May 2018: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29761915/reduction-of-parenteral-nutrition-and-hydration-support-and-safety-with-long-term-teduglutide-treatment-in-patients-with-short-bowel-syndrome-associated-intestinal-failure-steps-3-study
#13
Douglas L Seidner, Ken Fujioka, Joseph I Boullata, Kishore Iyer, Hak-Myung Lee, Thomas R Ziegler
BACKGROUND: Patients with intestinal failure associated with short bowel syndrome (SBS-IF) require parenteral support (PS) to maintain fluid balance or nutrition. Teduglutide (TED) reduced PS requirements in patients with SBS-IF in the randomized, placebo (PBO)-controlled STEPS study (NCT00798967) and its 2-year, open-label extension, STEPS-2 (NCT00930644). METHODS: STEPS-3 (NCT01560403), a 1-year, open-label extension study in patients with SBS-IF who completed STEPS-2, further monitored the safety and efficacy of TED (0...
May 15, 2018: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/29761100/moving-the-cellular-peptidome-by-transporters
#14
REVIEW
Rupert Abele, Robert Tampé
Living matter is defined by metastability, implying a tightly balanced synthesis and turnover of cellular components. The first step of eukaryotic protein degradation via the ubiquitin-proteasome system (UPS) leads to peptides, which are subsequently degraded to single amino acids by an armada of proteases. A small fraction of peptides, however, escapes further cytosolic destruction and is transported by ATP-binding cassette (ABC) transporters into the endoplasmic reticulum (ER) and lysosomes. The ER-resident heterodimeric transporter associated with antigen processing (TAP) is a crucial component in adaptive immunity for the transport and loading of peptides onto major histocompatibility complex class I (MHC I) molecules...
2018: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/29755513/motor-imagery-during-action-observation-of-locomotor-tasks-improves-rehabilitation-outcome-in-older-adults-after-total-hip-arthroplasty
#15
Uros Marusic, Sidney Grosprêtre, Armin Paravlic, Simon Kovač, Rado Pišot, Wolfgang Taube
This study aimed at determining whether the combination of action observation and motor imagery (AO + MI) of locomotor tasks could positively affect rehabilitation outcome after hip replacement surgery. Of initially 405 screened participants, 21 were randomly split into intervention group ( N = 10; mean age = 64 y; AO + MI of locomotor tasks: 30 min/day in the hospital, then 3×/week in their homes for two months) and control group ( N = 11, mean age = 63 y, active controls). The functional outcomes (Timed Up and Go, TUG; Four Step Square Test, FSST; and single- and dual-task gait and postural control) were measured before (PRE) and 2 months after surgery (POST)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755168/amount-and-content-of-sensorimotor-therapy-delivered-in-three-stroke-rehabilitation-units-in-quebec-canada
#16
Carol L Richards, Francine Malouin, Sylvie Nadeau, Joyce Fung, Line D'Amours, Claire Perez, Anne Durand
Purpose: This study creates a baseline clinical portrait of sensorimotor rehabilitation in three stroke rehabilitation units (SRUs) as a first step in implementing a multi-centre clinical research platform. Method: Participants in this cross-sectional, descriptive study were the patients and rehabilitation teams in these SRUs. Prospective (recording of therapy time and content and a Web-based questionnaire) and retrospective (chart audit) methods were combined to characterize the practice of the rehabilitation professionals...
2018: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/29752432/multidimensional-heuristic-process-for-high-yield-production-of-astaxanthin-and-fragrance-molecules-in-escherichia-coli
#17
Congqiang Zhang, Vui Yin Seow, Xixian Chen, Heng-Phon Too
Optimization of metabolic pathways consisting of large number of genes is challenging. Multivariate modular methods (MMMs) are currently available solutions, in which reduced regulatory complexities are achieved by grouping multiple genes into modules. However, these methods work well for balancing the inter-modules but not intra-modules. In addition, application of MMMs to the 15-step heterologous route of astaxanthin biosynthesis has met with limited success. Here, we expand the solution space of MMMs and develop a multidimensional heuristic process (MHP)...
May 11, 2018: Nature Communications
https://www.readbyqxmd.com/read/29752052/decrease-in-required-coefficient-of-friction-due-to-smaller-lean-angle-during-turning-in-older-adults
#18
Takeshi Yamaguchi, Ryosuke Okamoto, Kazuo Hokkirigawa, Kei Masani
We investigated age-related differences in the required coefficient of friction (RCOF) during 90° turning, the difference of RCOF during step and spin turn, and how affects observed differences. Sixteen healthy young and healthy older adults (eight men and eight women in each group) participated. Participants performed 90° step and spin turns to the right at a self-selected normal speed. Older adults turned with lower RCOF than the young adults during both step and spin turns. This was associated with reduced mediolateral (ML) RCOF component (RCOFML ) for the older adults...
May 3, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29749435/spag6-silencing-induces-apoptosis-in-the-myelodysplastic-syndrome-cell-line-skm%C3%A2-1-via-the-pten-pi3k-akt-signaling-pathway-in-vitro-and-in-vivo
#19
Jiaxiu Yin, Xinxin Li, Zaili Zhang, Xiaohua Luo, Li Wang, Lin Liu
Apoptosis is a multi-step mechanism of cell self‑destruction for maintaining cellular homeostatic balance. Accumulating evidence indicates that abnormal apoptosis promotes the evolution and progression of myelodysplastic syndromes (MDS). As a novel cancer-testis antigen, sperm‑associated antigen 6 (SPAG6) has been reported to regulate apoptosis through the tumor necrosis factor-related apoptosis-inducing ligand signaling pathway in the MDS cell line SKM‑1. However, the mechanism of the intrinsic cell death pathway for apoptosis induction by SPAG6 silencing is unclear...
May 2, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29749372/the-thioredoxin-1-system-is-essential-for-fueling-dna-synthesis-during-t-cell-metabolic-reprogramming-and-proliferation
#20
Jonathan Muri, Sebastian Heer, Mai Matsushita, Lea Pohlmeier, Luigi Tortola, Tobias Fuhrer, Marcus Conrad, Nicola Zamboni, Jan Kisielow, Manfred Kopf
The thioredoxin-1 (Trx1) system is an important contributor to cellular redox balance and is a sensor of energy and glucose metabolism. Here we show critical c-Myc-dependent activation of the Trx1 system during thymocyte and peripheral T-cell proliferation, but repression during T-cell quiescence. Deletion of thioredoxin reductase-1 (Txnrd1) prevents expansion the CD4- CD8- thymocyte population, whereas Txnrd1 deletion in CD4+ CD8+ thymocytes does not affect further maturation and peripheral homeostasis of αβT cells...
May 10, 2018: Nature Communications
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