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Y Gao, Y C Liang, H B Yu, X L Yan, B G Xu, R Liu, N Wang, G Q Xu, Z L Wang
Objective: To investigate the heart rate control situation of chronic heart failure (CHF) patients who received cardiovascular implantable electronic device (CIED) therapy, and to assess the heart rate control efficacy by optimized medication adjustment. Methods: We performed a perspective study in heart failure with reduced left ventricular ejection fraction (HFrEF) patients who received CIED according to guideline recommendations, patients were enrolled from January 2012 to January 2017. Resting heart rate (RHR) recorded by electrocardiogram after 10 minutes' rest and medication usage within 1 month were recorded at baseline...
March 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
X L Wang, J Wang, D L Mu, D X Wang
Objective: To investigate the effect of dexmedetomidine adding to ropivacaine for continuous femoral nerve block on the improvement of postoperative sleep quality in elderly patients after total knee arthroplasty. Methods: One hundred and sixty patients aged 60 years or older in Jishuitan Hospital scheduled for single total knee arthroplasty between Nov. 2016 and Jun. 2017 were recruited. All patients received spinal anesthesia and were randomized to receive either combined ropivacaine and dexmedetomidine (0...
March 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Lonneke Onrust, Karolien Van Driessche, Richard Ducatelle, Koen Schwarzer, Freddy Haesebrouck, Filip Van Immerseel
Valeric acid is a C5 fatty acid, naturally produced in low concentrations by specific members of the microbiota of the lower intestinal tract. Effects of valeric acid on intestinal health have been poorly investigated. Valeric acid derivatives can be produced as glyceride esters and added to broiler feed. In the current study, experiments were carried out to evaluate the effect of valeric acid glycerides (GVA) on growth performance, on the morphology of the small intestinal mucosa and on protection against necrotic enteritis...
March 16, 2018: Poultry Science
Sara J Czaja, Chin Chin Lee, Dolores Perdomo, David Loewenstein, Marina Bravo, Jerad H Moxley PhD, Richard Schulz
Background and Objectives: Family caregivers (CGs) are critical to the provision of long-term services and support for older adults. Numerous intervention programs to alleviate CG distress have been developed and evaluated yet few have been implemented in community settings. This paper describes and presents outcomes from Community REACH, a community implementation of the evidence-based Resources for Enhancing Alzheimer's Caregiver Health (REACH) II program. Research Design and Methods: Community REACH involved a partnership between REACH II investigators and United HomeCare Services (UHCS), a nonprofit home health organization that provides home health, personal care, companion, and respite services...
March 19, 2018: Gerontologist
Véronique Hugouvieux, Catarina S Silva, Agnès Jourdain, Arnaud Stigliani, Quentin Charras, Vanessa Conn, Simon J Conn, Cristel C Carles, François Parcy, Chloe Zubieta
The MADS transcription factors (TF) constitute an ancient family of TF found in all eukaryotes that bind DNA as obligate dimers. Plants have dramatically expanded the functional diversity of the MADS family during evolution by adding protein-protein interaction domains to the core DNA-binding domain, allowing the formation of heterotetrameric complexes. Tetramerization of plant MADS TFs is believed to play a central role in the evolution of higher plants by acting as one of the main determinants of flower formation and floral organ specification...
March 19, 2018: Nucleic Acids Research
K M Gourley, J C Woodworth, J M DeRouchey, S S Dritz, M D Tokach, R D Goodband
A total of 288 pigs (PIC 327 × 1050; initially 11.1 ± 0.1 kg, and day 40 of age) were used in a 21-d growth trial to determine the available P (aP) release curve for a novel source of 6-phytase (Natuphos E 5,000 G; BASF Corporation, Florham Park, NJ). Natuphos E is a bacterial derived 6-phytase of which the phytase gene is assembled from a hybrid of phytase-producing bacteria and produced through the fermentation of Aspergillus niger. Pigs were randomly allotted to pens at weaning. From day 15 to 18 postweaning, a common corn-soybean meal diet containing 0...
March 17, 2018: Journal of Animal Science
Lisa M Tuttle, Derek Pacheco, Linda Warfield, Jie Luo, Jeff Ranish, Steven Hahn, Rachel E Klevit
Transcription activation domains (ADs) are inherently disordered proteins that often target multiple coactivator complexes, but the specificity of these interactions is not understood. Efficient transcription activation by yeast Gcn4 requires its tandem ADs and four activator-binding domains (ABDs) on its target, the Mediator subunit Med15. Multiple ABDs are a common feature of coactivator complexes. We find that the large Gcn4-Med15 complex is heterogeneous and contains nearly all possible AD-ABD interactions...
March 20, 2018: Cell Reports
J L de Deus, A L A Dagostin, W A Varanda
Testosterone synthesis within Leydig cells is a calcium-dependent process. Intracellular calcium levels are regulated by different processes including ATP-activated P2X purinergic receptors, T-type Ca2+ channels modulated by the luteinizing hormone, and intracellular calcium storages recruited by a calcium-induced calcium release mechanism. On the other hand, nitric oxide (NO) is reported to have an inhibitory role in testosterone production. Based on these observations, we investigated the interaction between the purinergic and nitrergic systems in Leydig cells of adult mice...
March 15, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Masanori Takabayashi, Hassaan Majeed, Andre Kajdacsy-Balla, Gabriel Popescu
Tissue refractive index provides important information about morphology at the nanoscale. Since the malignant transformation involves both intra- and inter-cellular changes in the refractive index map, the tissue disorder measurement can be used to extract important diagnosis information. Quantitative phase imaging (QPI) provides a practical means of extracting this information as it maps the optical path-length difference (OPD) across a tissue sample with sub-wavelength sensitivity. In this work, we employ QPI to compare the tissue disorder strength between benign and malignant breast tissue histology samples...
2018: PloS One
Elia Psouni, Raquel Perez Vicente, Lars B Dahlin, Juan Merlo
Chronic handicap in early life may have a long-term impact on children's psychosocial well-being. Here, we investigated whether Brachialis Plexus Birth Injury (BPBI)-an unpredictable injury at birth-is associated with worse mental health later on, as indicated by prescription and use of psychotropic drugs in adolescence. We explored further whether this association is different depending on socioeconomic characteristics of the child's family, as well as sex. Of the 641 151 children born to native parents in Sweden 1987-1993 (alive and still living in Sweden at the end of 2008), identified in the Swedish Medical Birth Registry, 1587 had suffered a BPBI...
2018: PloS One
María Figueiredo-González, Patricia Reboredo-Rodríguez, Carmen González-Barreiro, Alegría Carrasco-Pancorbo, Jesús Simal-Gándara, Beatriz Cancho-Grande
The increasing interest in the Mediterranean diet is based on the protective effects against several diseases, including neurodegenerative disorders. Polyphenol-rich functional foods have been proposed to be unique supplementary and nutraceutical treatments for these disorders. Extra-virgin olive oils (EVOOs) obtained from 'Brava' and 'Mansa', varieties recently identified from Galicia (northwestern Spain), were selected for in vitro screening to evaluate their capacity to inhibit key enzymes involved in Alzheimer's disease (AD) (acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) and 5-lipoxygenase (5-LOX)), major depressive disorder (MDD) and Parkinson's disease (PD) (monoamine oxidases: h MAO-A and h MAO-B respectively)...
March 21, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Katharina Dietrich, Yvonne Bouter, Michael Müller, Thomas A Bayer
This commentary reviews the role of the Alzheimer amyloid peptide Aβ on basal synaptic transmission, synaptic short-term plasticity, as well as short- and long-term potentiation in transgenic mice, with a special focus on N-terminal truncated Aβ4-42 . Aβ4-42 is highly abundant in the brain of Alzheimer's disease (AD) patients. It demonstrates increased neurotoxicity compared to full length Aβ, suggesting an important role in the pathogenesis of AD. Transgenic Tg4-42 mice, a model for sporadic AD, express human Aβ4-42 in Cornu Ammonis (CA1) neurons, and develop age-dependent hippocampal neuron loss and neurological deficits...
March 21, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Munvar Miya Shaik, Ian A Tamargo, Murtala B Abubakar, Mohammad A Kamal, Nigel H Greig, Siew Hua Gan
MicroRNAs (miRNAs) are short, endogenous, non-coding RNAs that post-transcriptionally regulate gene expression by base pairing with mRNA targets. Altered miRNA expression profiles have been observed in several diseases, including neurodegeneration. Multiple studies have reported altered expressions of miRNAs in the brains of individuals with Alzheimer's disease (AD) as compared to those of healthy elderly adults. Some of the miRNAs found to be dysregulated in AD have been reported to correlate with neuropathological changes, including plaque and tangle accumulation, as well as altered expressions of species that are known to be involved in AD pathology...
March 21, 2018: Genes
ByungWan Jo, Rana Muhammad Asad Khan
The implementation of wireless sensor networks (WSNs) for monitoring the complex, dynamic, and harsh environment of underground coal mines (UCMs) is sought around the world to enhance safety. However, previously developed smart systems are limited to monitoring or, in a few cases, can report events. Therefore, this study introduces a reliable, efficient, and cost-effective internet of things (IoT) system for air quality monitoring with newly added features of assessment and pollutant prediction. This system is comprised of sensor modules, communication protocols, and a base station, running Azure Machine Learning (AML) Studio over it...
March 21, 2018: Sensors
Luisana Di Cristo, Ciaran Manus Maguire, Karen Mc Quillan, Mattia Aleardi, Yuri Volkov, Dania Movia, Adriele Prina-Mello
Nanoparticles (NP)-based inhalation systems for drug delivery can be administered in liquid form, by nebulization or using pressurized metered dose inhalers, and in solid form by means of dry powder inhalers. However, NP delivery to the lungs has many challenges including the formulation instability due to particle-particle interactions and subsequent aggregation, causing poor deposition in the small distal airways and subsequent alveolar macrophages activity, which could lead to inflammation. This work aims at providing an in vitro experimental design for investigating the correlation between the physico-chemical properties of NP, and their biological behavior, when they are used as NP-based inhalation treatments, comparing two different exposure systems...
March 21, 2018: International Journal of Environmental Research and Public Health
Bo Hu
In linked-chain equating, equating errors may accumulate and cause scale drift. This simulation study extends the investigation on scale drift in linked-chain equating to mixed-format test. Specifically, the impact of equating method and the characteristics of anchor test and equating chain on equating errors and scale drift in IRT true score equating is examined. To evaluate equating results, a new method is used to derive true linking coefficients. The results indicate that the characteristic curve methods produce more accurate and reliable equating results than the moment methods...
2018: Journal of Applied Measurement
Kenneth E Thorpe, Peter Joski, Kenton J Johnston
Antibiotic-resistant infections are a global health care concern. The Centers for Disease Control and Prevention estimates that 23,000 Americans with these infections die each year. Rising infection rates add to the costs of health care and compromise the quality of medical and surgical procedures provided. Little is known about the national health care costs attributable to treating the infections. Using data from the Medical Expenditure Panel Survey, we estimated the incremental health care costs of treating a resistant infection as well as the total national costs of treating such infections...
March 21, 2018: Health Affairs
Susan Aitkenhead
No abstract text is available yet for this article.
March 22, 2018: British Journal of Nursing: BJN
Paul M Bogie, Lauren R Holloway, Yana Lyon, Nicole C Onishi, Gregory J O Beran, Ryan R Julian, Richard J Hooley
A strained, "springloaded" Fe2 L3 iminopyridine mesocate shows highly variable reactivity upon postassembly reaction with competitive diamines. The strained assembly is reactive toward transimination in minutes at ambient temperature and allows observation of kinetically trapped intermediates in the self-assembly pathway. When diamines are used that can only form less favored cage products upon full equilibration, trapped ML3 fragments with pendant, "hanging" NH2 groups are selectively formed instead...
March 21, 2018: Inorganic Chemistry
Richard Mbundu Ilunga, Céline Helbling, Lucie Favre, Tinh-Hai Collet
Obesity is associated with elevated levels of triglycerides, sometimes LDL-cholesterol, and lower levels of HDL-cholesterol. Management should first focus on dietary advices and increased physical activity, while lipid-lowering drugs are indicated only in patients at intermediate or high cardiovascular risk. We summarize nutritional recommendations from scientific societies: although they do not always overlap, they agree on lowering consumption of dietary fat (20-35 % of total energy intake) and favoring non-saturated fatty acids...
March 21, 2018: Revue Médicale Suisse
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