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https://www.readbyqxmd.com/read/29352772/neurotransmitters-and-receptors-changes-in-medial-nucleus-of-the-trapezoid-body-mntb-of-early-developmental-rats-with-single-side-deafness
#1
Jinsheng Dai, Jinfeng Liu, Mo Zhou, Wenjiao Wang, Zhi-Qing David Xu, Ningyu Wang
BACKGROUND Congenital single-side deafness (SSD) affects sound localization even after cochlear implantation (CI) in some conditions. The medial nucleus of the trapezoid body (MNTB) plays an important role in binaural benefit and sound localization, but little is known about intrinsic molecular changes in MNTB with SSD. We aimed to observe changes in MNTB in early-developmental SSD rats, including the key neurotransmitters (GABA, Gly, Glu) and major receptors (GABAa-R/GABAb-R for GABA, Gly-R for Gly, and AMPA/NMDA for Glu)...
January 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29352739/determination-of-protein-oligomeric-structure-from-small-angle-x-ray-scattering
#2
REVIEW
David A Korasick, John J Tanner
Small-angle X-ray scattering (SAXS) is useful for determining the oligomeric states and quaternary structures of proteins in solution. The average molecular mass in solution can be calculated directly from a single SAXS curve collected on an arbitrary scale from a sample of unknown protein concentration, without the need for beamline calibration or protein standards. The quaternary structure in solution can be deduced by comparing the experimental SAXS curve to theoretical curves calculated from proposed models of the oligomer...
January 20, 2018: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/29352668/the-effect-of-single-and-repeated-prefrontal-intermittent-theta-burst-stimulation-on-cortical-reactivity-and-working-memory
#3
Sung Wook Chung, Nigel C Rogasch, Kate E Hoy, Paul B Fitzgerald
BACKGROUND: With an increasing interest in the use of theta burst stimulation (TBS) as a cognitive enhancer and a potential therapeutic tool for psychiatric disorders, there is a need to identify optimal parameters of TBS in the prefrontal cortex. OBJECTIVE/HYPOTHESIS: This study examined the effect of two blocks of prefrontal intermittent TBS (iTBS) on cortical reactivity and working memory performance, compared to one block of iTBS and sham stimulation. We hypothesized that greater cortical effects would be obtained with two blocks of iTBS...
January 8, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29352637/the-ability-of-topical-and-systemic-statins-to-increase-osteogenesis-around-dental-implants-a-systematic-review-of-histomorphometric-outcomes-in-animal-studies
#4
REVIEW
V Moraschini, D C F Almeida, J A Calasans-Maia, M Diuana Calasans-Maia
The purpose of this systematic review was to evaluate the quantitative histomorphometric outcomes of animal studies investigating statins as a pro-osteogenic agent to enhance the osseointegration of dental implants. Some animal studies have suggested a beneficial action of statins on bone tissue. Electronic and manual literature searches, without date or language restriction, ​​were performed by two independent review authors up to February 2017. Eligibility criteria included animal trials quantitatively analysing the pro-osteogenic effect of statins on dental implants...
January 15, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29352575/double-plication-for-spring-mediated-intestinal-lengthening-of-a-defunctionalized-roux-limb
#5
Genia Dubrovsky, Nhan Huynh, Anne-Laure Thomas, Shant Shekherdimian, James C Y Dunn
BACKGROUND: Spring-mediated distraction enterogenesis has been shown to increase the length of an intestinal segment. The goal of this study is to use suture plication to confine a spring within an intestinal segment while maintaining luminal patency to the rest of the intestine. METHODS: Juvenile mini-Yucatan pigs underwent placement of nitinol springs within a defunctionalized Roux limb of jejunum. A 20 French catheter was passed temporarily, and sutures were used to plicate the intestinal wall around the catheter at both ends of the encapsulated spring...
December 26, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29352564/optical-metabolic-imaging-of-irradiated-rat-heart-exposed-to-ischemia-reperfusion-injury
#6
Mette Funding la Cour, Shima Mehrvar, James S Heisner, Mohammad Masoudi Motlagh, Meetha Medhora, Mahsa Ranji, Amadou K S Camara
Whole thoracic irradiation (WTI) is known to cause deterioration in cardiac function. Whether irradiation predisposes the heart to further ischemia and reperfusion (IR) injury is not well known. The aim of this study is to examine the susceptibility of rat hearts to IR injury following a single fraction of 15 Gy WTI and to investigate the role of mitochondrial metabolism in the differential susceptibility to IR injury. After day 35 of irradiation, ex vivo hearts from irradiated and nonirradiated rats (controls) were exposed to 25-min global ischemia followed by 60-min IR, or hearts were perfused without IR for the same protocol duration [time controls (TC)]...
January 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29352514/an-integrative-review-exploring-the-physical-and-psychological-harm-inherent-in-using-restraint-in-mental-health-inpatient-settings
#7
Pauline Cusack, Frank Patrick Cusack, Sue McAndrew, Mick McKeown, Joy Duxbury
In Western society, policy and legislation seeks to minimize restrictive interventions, including physical restraint; yet research suggests the use of such practices continues to raise concerns. Whilst international agreement has sought to define physical restraint, diversity in the way in which countries use restraint remains disparate. Research to date has reported on statistics regarding restraint, how and why it is used, and staff and service user perspectives about its use. However, there is limited evidence directly exploring the physical and psychological harm restraint may cause to people being cared for within mental health inpatient settings...
January 19, 2018: International Journal of Mental Health Nursing
https://www.readbyqxmd.com/read/29352498/autofocusing-based-phase-correction
#8
Alexander Loktyushin, Philipp Ehses, Bernhard Schölkopf, Klaus Scheffler
PURPOSE: Phase artifacts due to B0 inhomogeneity can severely degrade the quality of MR images. The artifacts are particularly prominent in long-TE scans and usually appear as ghosting and blur. We propose a retrospective phase correction method based on autofocusing. The proposed method uses raw data acquired with standard imaging sequences, and does not rely on navigators or external measures of field inhomogeneity. METHODS: We formulate and solve the optimization problem, where we seek the latent phase offsets that are associated with an optimal value of the image quality measure that is evaluated in the spatial domain...
January 19, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29352493/effect-of-dietary-manipulation-and-vaccination-of-turkey-breeder-hens-on-immunoglobulin-levels-of-yolk-yolk-sac-and-neonate-poults
#9
A Bhattacharyya, S Majumdar, S K Bhanja, A B Mandal, B B Dash
Two hundred turkey breeder hens and 24 viable toms of 30-35 weeks age of small white variety were distributed into two treatment groups having four replicates of 25 hens and three toms in each treatment. First four replicates were offered a turkey breeder diet (Diet A) (Nutrient requirements of poultry, 1994, National Academic Press, Washington, DC) and the rest four replicates were maintained on a higher plane of nutrition (Diet B) for 8-week duration. After 6 weeks of experimental feeding, two replicates from each treatment groups were vaccinated with ND (R2 B) vaccine...
January 19, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29352477/benzodiazepines-for-antipsychotic-induced-tardive-dyskinesia
#10
REVIEW
Hanna Bergman, Paranthaman S Bhoopathi, Karla Soares-Weiser
BACKGROUND: Tardive dyskinesia (TD) is a disfiguring movement disorder, often of the orofacial region, frequently caused by using antipsychotic drugs. A wide range of strategies have been used to help manage TD, and for those who are unable to have their antipsychotic medication stopped or substantially changed, the benzodiazepine group of drugs have been suggested as a useful adjunctive treatment. However, benzodiazepines are very addictive. OBJECTIVES: To determine the effects of benzodiazepines for antipsychotic-induced tardive dyskinesia in people with schizophrenia, schizoaffective disorder, or other chronic mental illnesses...
January 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29352466/experimental-evidence-that-density-dependence-strongly-influences-plant-invasions-through-fragmented-landscapes
#11
Jennifer L Williams, Jonathan M Levine
Populations of range expanding species encounter patches of both favorable and unfavorable habitat as they spread across landscapes. Theory shows that increasing patchiness slows the spread of populations modeled with continuously varying population density when dispersal is not influence by the environment or individual behavior. However, as is found in uniformly favorable landscapes, spread remains driven by fecundity and dispersal from low density individuals at the invasion front. In contrast, when modeled populations are composed of discrete individuals, patchiness causes populations to build up to high density before dispersing past unsuitable habitat, introducing an important influence of density dependence on spread velocity...
January 20, 2018: Ecology
https://www.readbyqxmd.com/read/29352449/continuous-exposure-to-microplastics-does-not-cause-physiological-effects-in-the-cultivated-mussel-perna-perna
#12
Marina F M Santana, Fabiana T Moreira, Camilo D S Pereira, Denis M S Abessa, Alexander Turra
The environmental impact of microplastics is a challenging theme, especially under realistic experimental conditions. We investigated physiological responses to 0.1-1.0 μm PVC particles intake by the mussel Perna perna after a relative long-term exposure (90 days) at a less extreme concentration compared with previous studies (0.125 g/L). Microplastic intake was inferred by the presence of PVC in the feces of mussels, and physiological damages were assessed through ingestion rate, assimilation efficiency, growth rate, cellular and molecular biomarkers (lysosomal integrity, lipid peroxidation, and DNA damage), and condition index...
January 19, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29352393/eco-friendly-pheromone-dispensers-a-green-route-to-manage-the-european-grapevine-moth
#13
Andrea Lucchi, Edith Ladurner, Andrea Iodice, Francesco Savino, Renato Ricciardi, Francesca Cosci, Giuseppe Conte, Giovanni Benelli
The development of environmentally sustainable control strategies to fight insect pests is a key challenge nowadays. Pheromone-mediated mating disruption (MD) is based on the release of synthetic sex attractants into a crop, interfering with mate finding of a given pest species. However, a limited number of research items have been published on the optimization of MD strategies against the European grapevine moth, Lobesia botrana, as well as on the use of biodegradable dispensers to reduce waste production in vineyards, despite the high economic importance of this pest...
January 19, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29352385/outer-wall-segmentation-of-abdominal-aortic-aneurysm-by-variable-neighborhood-search-through-intensity-and-gradient-spaces
#14
Thanongchai Siriapisith, Worapan Kusakunniran, Peter Haddawy
Aortic aneurysm segmentation remains a challenge. Manual segmentation is a time-consuming process which is not practical for routine use. To address this limitation, several automated segmentation techniques for aortic aneurysm have been developed, such as edge detection-based methods, partial differential equation methods, and graph partitioning methods. However, automatic segmentation of aortic aneurysm is difficult due to high pixel similarity to adjacent tissue and a lack of color information in the medical image, preventing previous work from being applicable to difficult cases...
January 19, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29352322/qportal-a-platform-for-data-driven-biomedical-research
#15
Christopher Mohr, Andreas Friedrich, David Wojnar, Erhan Kenar, Aydin Can Polatkan, Marius Cosmin Codrea, Stefan Czemmel, Oliver Kohlbacher, Sven Nahnsen
Modern biomedical research aims at drawing biological conclusions from large, highly complex biological datasets. It has become common practice to make extensive use of high-throughput technologies that produce big amounts of heterogeneous data. In addition to the ever-improving accuracy, methods are getting faster and cheaper, resulting in a steadily increasing need for scalable data management and easily accessible means of analysis. We present qPortal, a platform providing users with an intuitive way to manage and analyze quantitative biological data...
2018: PloS One
https://www.readbyqxmd.com/read/29352283/using-a-model-comparison-approach-to-describe-the-assembly-pathway-for-histone-h1
#16
Carlos Contreras, Minaya Villasana, Michael J Hendzel, Gustavo Carrero
Histones H1 or linker histones are highly dynamic proteins that diffuse throughout the cell nucleus and associate with chromatin (DNA and associated proteins). This binding interaction of histone H1 with the chromatin is thought to regulate chromatin organization and DNA accessibility to transcription factors and has been proven to involve a kinetic process characterized by a population that associates weakly with chromatin and rapidly dissociates and another population that resides at a binding site for up to several minutes before dissociating...
2018: PloS One
https://www.readbyqxmd.com/read/29352252/towards-an-experimental-classification-system-for-membrane-active-peptides
#17
G D Brand, M H S Ramada, T C Genaro-Mattos, C Bloch
Mature proteins can act as potential sources of encrypted bioactive peptides that, once released from their parent proteins, might interact with diverse biomolecular targets. In recent work we introduced a systematic methodology to uncover encrypted intragenic antimicrobial peptides (IAPs) within large protein sequence libraries. Given that such peptides may interact with membranes in different ways, resulting in distinct observable outcomes, it is desirable to develop a predictive methodology to categorize membrane active peptides and establish a link to their physicochemical properties...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352237/wearable-sweat-rate-sensors-for-human-thermal-comfort-monitoring
#18
Jai Kyoung Sim, Sunghyun Yoon, Young-Ho Cho
We propose watch-type sweat rate sensors capable of automatic natural ventilation by integrating miniaturized thermo-pneumatic actuators, and experimentally verify their performances and applicability. Previous sensors using natural ventilation require manual ventilation process or high-power bulky thermo-pneumatic actuators to lift sweat rate detection chambers above skin for continuous measurement. The proposed watch-type sweat rate sensors reduce operation power by minimizing expansion fluid volume to 0...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352232/the-silent-healer-mir-205-5p-up-regulation-inhibits-epithelial-to-mesenchymal-transition-in-colon-cancer-cells-by-indirectly-up-regulating-e-cadherin-expression
#19
Diana Gulei, Lorand Magdo, Ancuta Jurj, Lajos Raduly, Roxana Cojocneanu-Petric, Alin Moldovan, Cristian Moldovan, Adrian Florea, Sergiu Pasca, Laura-Ancuta Pop, Vlad Moisoiu, Liviuta Budisan, Cecilia Pop-Bica, Cristina Ciocan, Rares Buiga, Mihai-Stefan Muresan, Rares Stiufiuc, Calin Ionescu, Ioana Berindan-Neagoe
EMT represents the dominant program within advanced stages of colon cancer, where cells acquire migratory characteristics in order to invade secondary tissues and form metastasis. Where the majority of the therapeutic strategies are concentrated on the reduction of the tumor mass through different apoptotic mechanisms, the present study advocates an important role for miR-205-5p in impairment of colon cancer cells migration and restoration of the epithelial phenotype. Upon identification of a homogenous downregulated profile for miR-205-5p in colon adenocarcinoma patients, functional studies demonstrated that experimental upregulation of this sequence is able to significantly raise the levels of E-cadherin through direct inhibition of ZEB1...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352222/artificial-chameleon-skin-that-controls-spectral-radiation-development-of-chameleon-cool-coating-c3
#20
Hiroki Gonome, Masashi Nakamura, Junnosuke Okajima, Shigenao Maruyama
Chameleons have a diagnostic thermal protection that enables them to live under various conditions. Our developed special radiative control therefore is inspired by the chameleon thermal protection ability by imitating its two superposed layers as two pigment particles in one coating layer. One particle imitates a chameleon superficial surface for color control (visible light), and another particle imitates a deep surface to reflect solar irradiation, especially in the near-infrared region. Optical modeling allows us to optimally design the particle size and volume fraction...
January 19, 2018: Scientific Reports
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