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https://www.readbyqxmd.com/read/28528392/habitat-quality-mediates-personality-through-differences-in-social-context
#1
Benjamin A Belgrad, Blaine D Griffen
Assessing the stability of animal personalities has become a major goal of behavioral ecologists. Most personality studies have utilized solitary individuals, but little is known on the extent that individuals retain their personality across ecologically relevant group settings. We conducted a field survey which determined that mud crabs, Panopeus herbstii, remain scattered as isolated individuals on degraded oyster reefs while high quality reefs can sustain high crab densities (>10 m(-2)). We examined the impact of these differences in social context on personality by quantifying the boldness of the same individual crabs when in isolation and in natural cohorts...
May 20, 2017: Oecologia
https://www.readbyqxmd.com/read/28528356/operating-room-fires-in-periocular-surgery
#2
Michael A Connor, Anne M Menke, Ivan Vrcek, John W Shore
AIM: A survey of ophthalmic plastic and reconstructive surgeons as well as seven-year data regarding claims made to the Ophthalmic Mutual Insurance Company (OMIC) is used to discuss operating room fires in periocular surgery. METHODS: A retrospective review of all closed claim operating room fires submitted to OMIC was performed. A survey soliciting personal experiences with operating room fires was distributed to all American Society of Oculoplastic and Reconstructive Surgeons...
May 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28528305/characterization-of-estrogenic-and-androgenic-activity-of-phthalates-by-the-xenoscreen-yes-yas-in-vitro-assay
#3
Radosław Czernych, Milena Chraniuk, Paweł Zagożdżon, Lidia Wolska
The presented study investigates and compares the estrogenic and androgenic activities of commonly used diesters of phthalic acid (phthalates) using the XenoScreen YES/YAS assay. Phthalates are commonly used plasticizers in polymers dedicated for i.e. food and drug containers. Since phthalates are not chemically bonded to the polymer, they can leach or migrate from the polymer. Therefore, phthalates are identified as contaminants in a variety of consumer products. Investigation of estrogenic and androgenic activities of phthalates (DEP, DBP, BBP, DEHP and DINP) showed no significant effect of tested substances either on hERα or hAR receptors...
May 12, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28528122/probdnf-inhibits-proliferation-migration-and-differentiation-of-mouse-neural-stem-cells
#4
Jia-Yi Li, Jia Liu, Nimshitha Pavathuparambil Abdul Manaph, Larisa Bobrovskaya, Xin-Fu Zhou
ProBDNF, a precursor of brain-derived neurotrophic factor (BDNF), is an important regulator of neurodegeneration, hippocampal long-term depression, and synaptic plasticity. ProBDNF and its receptors pan-neurotrophin receptor p75 (p75NTR), vps10p domain-containing receptor Sortilin and tropomyosin receptor kinase B (TrkB) are expressed in neuronal and glial cells. The role of proBDNF in regulation of neurogenesis is not fully defined. This study aims to uncover the function of proBDNF in regulating the differentiation, migration and proliferation of mouse neural stem cells (NSCs) in vitro...
May 17, 2017: Brain Research
https://www.readbyqxmd.com/read/28528062/successful-thoracic-duct-ligation-for-plastic-bronchitis-in-an-adult
#5
Nicholas R Hess, Christopher Piercecchi, Nikita Desai, Micah R Fisher, Eun-Hyung Lee, Seth D Force
Plastic bronchitis is a rare and potentially life-threatening disease characterized by the development of obstructive fibrinous tracheobronchial casts and hypoxic respiratory failure. With its poorly understood cause and rare occurrence in the adult population, few treatment strategies have been described in adults with this condition. In this report, we present a case of successful treatment of an adult with plastic bronchitis, using thoracic duct ligation and resulting in full resolution of airway cast development...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527905/peroxisome-proliferator-activated-receptor-%C3%AE-mediated-polarization-of-macrophages-in-neospora-caninum-infection
#6
Xuexiu He, Pengtao Gong, Zhengkai Wei, Weijian Liu, Weili Wang, Jianhua Li, Zhengtao Yang, Xichen Zhang
BACKGROUND: Neospora caninum is an apicomplexan parasite closely related Toxoplasma gondii, which causes neurological disease and abortion in multiple animal species. Macrophage polarization plays an important role in host immune responses to parasites infection, such as Toxoplasma gondii, Leishmania, Trypanosoma cruzi. However, the dynamics of macrophage polarization, as well as the possible mechanism that regulate macrophage polarization, during N. caninum infection remains unclear...
May 17, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28527864/effect-of-the-medium-s-density-on-the-hydrocyclonic-separation-of-waste-plastics-with-different-densities
#7
Shuangcheng Fu, Yong Fang, Huixin Yuan, Wanjiang Tan, Yiwen Dong
Hydrocyclones can be applied to recycle waste plastics with different densities through separating plastics based on their differences in densities. In the process, the medium density is one of key parameters and the value of the medium's density is not just the average of the density of two kinds of plastics separated. Based on the force analysis and establishing the equation of motion of particles in the hydrocyclone, a formula to calculate the optimum separation medium density has been deduced. This value of the medium's density is a function of various parameters including the diameter, density, radial position and tangential velocity of particles, and viscosity of the medium...
May 17, 2017: Waste Management
https://www.readbyqxmd.com/read/28527804/nutritive-value-and-fermentation-characteristics-of-alfalfa-mixed-grass-forage-wrapped-with-minimal-stretch-film-layers-and-stored-for-different-lengths-of-time
#8
W K Coblentz, R K Ogden, M S Akins, E A Chow
A key aspect of managing baled silages is to quickly achieve and then rigorously maintain anaerobic conditions within the silage mass. The concept of inserting an O2-limiting barrier (OB) into plastic commercial silage wraps has been evaluated previously, yielding mixed or inconclusive results. Our objective for this study was to maximize the challenge to a commercial polyethylene bale wrap, or the identical wrap containing an OB, by using minimal plastic (4 layers), and then extending storage periods as long as 357 d...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527800/from-pre-to-postweaning-transformation-of-the-young-calf-s-gastrointestinal-tract
#9
Sarah J Meale, Frederique Chaucheyras-Durand, Harma Berends, Le Luo Guan, Michael A Steele
The ruminant gastrointestinal tract (GIT) faces the challenge of protecting the host from luminal contents and pathogens, while supporting the absorption and metabolism of nutrients for growth and maintenance. The GIT of the calf in early life undergoes some of the most rapid microbial and structural changes documented in nature, and these adaptations in GIT function make the young calf susceptible to GIT diseases and disorders. Despite these challenges, the calf's GIT has a certain degree of plasticity and can sense nutrient supply and respond to bioactive ingredients...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527788/taking-control-structural-and-behavioural-plasticity-in-response-to-game-based-inhibition-training-in-older-adults
#10
Simone Kühn, Robert C Lorenz, Markus Weichenberger, Maxi Becker, Marten Haesner, Julie O'Sullivan, Anika Steinert, Elisabeth Steinhagen-Thiessen, Susanne Brandhorst, Thomas Bremer, Jürgen Gallinat
While previous attempts to train self-control in humans have frequently failed, we set out to train response inhibition using computer-game elements. We trained older adults with newly developed game-based inhibition training on a tablet for two months and compared them to an active and passive control group. Behavioural effects reflected in shorter stop signal response times were observed only in the inhibition-training group. This was accompanied by structural growth of right inferior frontal gyrus (rIFG) triangularis cortical thickness, a brain region that has been associated with response inhibition...
May 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28527744/abundance-and-composition-of-near-surface-microplastics-and-plastic-debris-in-the-stockholm-archipelago-baltic-sea
#11
Berit Gewert, Martin Ogonowski, Andreas Barth, Matthew MacLeod
We collected plastic debris in the Stockholm Archipelago using a manta trawl, and additionally along a transect in the Baltic Sea from the island of Gotland to Stockholm in a citizen science study. The samples were concentrated by filtration and organic material was digested using hydrogen peroxide. Suspected plastic material was isolated by visual sorting and 59 of these were selected to be characterized with Fourier transform infrared spectroscopy. Polypropylene and polyethylene were the most abundant plastics identified among the samples (53% and 24% respectively)...
May 17, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28527230/imaging-and-neuropsychological-correlates-of-white-matter-lesions-in-different-subtypes-of-mild-cognitive-impairment-a-systematic-review
#12
Charlene L M Lam, Jenny Yiend, Tatia M C Lee
BACKGROUND: White matter lesions (WML) are prevalent in older adults. The association between WML and cognition in different subtypes of Mild Cognitive Impairment (MCI) is inconsistent in the literature. OBJECTVES: We aim to provide a systematic review on the impact of WML in different subtypes of MCI, and discuss the recent findings on white matter plasticity. METHODS: We reviewed peer-reviewed articles from January 2011 to August 2016 and identified 12 studies investigating the association between WML and subtypes of MCI with both neuroimaging and cognitive measures...
May 13, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28527224/does-assist-as-needed-upper-limb-robotic-therapy-promote-participation-in-repetitive-activity-based-motor-training-in-sub-acute-stroke-patients-with-severe-paresis
#13
Anne-Gaëlle Grosmaire, Christophe Duret
BACKGROUND: Repetitive, active movement-based training promotes brain plasticity and motor recovery after stroke. Robotic therapy provides highly repetitive therapy that reduces motor impairment. However, the effect of assist-as-needed algorithms on patient participation and movement quality is not known. OBJECTIVE: To analyze patient participation and motor performance during highly repetitive assist-as-needed upper limb robotic therapy in a retrospective study...
May 19, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28527192/in-vitro-evaluation-of-an-injectable-biphasic-calcium-phosphate-bcp-carrier-system-combined-with-recombinant-human-bone-morphogenetic-protein-rhbmp-9
#14
Masako Fujioka-Kobayashi, Benoit Schaller, Yufeng Zhang, Benjamin E Pippenger, Richard J Miron
Bone morphogenetic protein 9 (BMP9) has previously been characterized as the strongest osteoinductive growth factor among the BMP family. The aim of the present study was to evaluate the possibility of combining rhBMP9 with an injectable biphasic calcium phosphate (I-BCP, maxresorb inject®), since I-BCP is an easy to handle biomaterial with ideal properties for bone augmentation procedures. The adsorption potential of rhBMP9 as well as the cell behavior of bone stromal ST2 cells were investigated on cell viability, adhesion, proliferation and osteogenic differentiation for I-BCP combined with/without rhBMP9 in vitro...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28527108/increased-expression-of-brain-derived-neurotrophic-factor-transcripts-i-and-vi-camp-response-element-binding-and-glucocorticoid-receptor-in-the-cortex-of-patients-with-temporal-lobe-epilepsy
#15
G A Martínez-Levy, L Rocha, F Rodríguez-Pineda, M A Alonso-Vanegas, A Nani, R M Buentello-García, M Briones-Velasco, D San-Juan, J Cienfuegos, C S Cruz-Fuentes
A body of evidence supports a relevant role of brain-derived neurotrophic factor (BDNF) in temporal lobe epilepsy (TLE). Magnetic resonance data reveal that the cerebral atrophy extends to regions that are functionally and anatomically connected with the hippocampus, especially the temporal cortex. We previously reported an increased expression of BDNF messenger for the exon VI in the hippocampus of temporal lobe epilepsy patients compared to an autopsy control group. Altered levels of this particular transcript were also associated with pre-surgical use of certain psychotropic...
May 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28527057/behavioral-therapy-emotion-and-pain-a-common-anatomical-background
#16
Lauren A-M Dahlke, Jeffrey J Sable, Frank Andrasik
Emotion and pain are closely intertwined in the brain, as the human experience of pain includes both affective and nociceptive components. Although each of these components relies on a different system in the brain, the two systems converge on the anterior cingulate and insular cortices, which interact with the prefrontal cortex and other frontal structures to influence behavior. Both emotional and physical pain elicit activity in these common areas, and conditions that affect one system (e.g., drugs, neural plasticity) may affect the function of the other-ultimately altering the experience of pain...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28527017/juxtaglomerular-cell-phenotypic-plasticity
#17
REVIEW
Alexandre Góes Martini, A H Jan Danser
Renin is the first and rate-limiting step of the renin-angiotensin system. The exclusive source of renin in the circulation are the juxtaglomerular cells of the kidney, which line the afferent arterioles at the entrance of the glomeruli. Normally, renin production by these cells suffices to maintain homeostasis. However, under chronic stimulation of renin release, for instance during a low-salt diet or antihypertensive therapy, cells that previously expressed renin during congenital life re-convert to a renin-producing cell phenotype, a phenomenon which is known as "recruitment"...
May 19, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28526858/expression-and-activity-of-the-bioh-esterase-of-biotin-synthesis-is-independent-of-genome-context
#18
Xinyun Cao, Lei Zhu, Zhe Hu, John E Cronan
BioH is an α/β-hydrolase required for synthesis of the pimelate moiety of biotin in diverse bacteria. The bioH gene is found in different genomic contexts. In some cases (e.g., Escherichia coli) the gene is not located within a biotin synthetic operon and its transcription is not coregulated with the other biotin synthesis genes. In other genomes such as Pseudomonas aeruginosa the bioH gene is within a biotin synthesis operon and its transcription is coregulated with the other biotin operon genes. The esterases of pimelate moiety synthesis show remarkable genomic plasticity in that in some biotin operons bioH is replaced by other α/ß hydrolases of diverse sequence...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526679/succession-of-transiently-active-tumor-initiating-cell-clones-in-human-pancreatic-cancer-xenografts
#19
Claudia R Ball, Felix Oppel, Karl Roland Ehrenberg, Taronish D Dubash, Sebastian M Dieter, Christopher M Hoffmann, Ulrich Abel, Friederike Herbst, Moritz Koch, Jens Werner, Frank Bergmann, Naveed Ishaque, Manfred Schmidt, Christof von Kalle, Claudia Scholl, Stefan Fröhling, Benedikt Brors, Wilko Weichert, Jürgen Weitz, Hanno Glimm
Although tumor-initiating cell (TIC) self-renewal has been postulated to be essential in progression and metastasis formation of human pancreatic adenocarcinoma (PDAC), clonal dynamics of TICs within PDAC tumors are yet unknown. Here, we show that long-term progression of PDAC in serial xenotransplantation is driven by a succession of transiently active TICs producing tumor cells in temporally restricted bursts. Clonal tracking of individual, genetically marked TICs revealed that individual tumors are generated by distinct sets of TICs with very little overlap between subsequent xenograft generations...
May 19, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28526634/microsurgery-simulation-training-system-and-set-up-an-essential-system-to-complement-every-training-programme
#20
Dhalia Masud, Nadine Haram, Margarita Moustaki, Whitney Chow, Samer Saour, Pari Naz Mohanna
INTRODUCTION: Microsurgical techniques are essential in plastic surgery; however, inconsistent training practices, acquiring these skills can be difficult. To address this, we designed a standardised laboratory-based microsurgical training programme, which allows trainees to develop their dexterity, visuospatial ability, operative flow and judgement as separate components. METHOD: Thirty trainees completed an initial microsurgical anastomosis on a chicken femoral artery, assessed using the structured assessment of microsurgical skills (SAMS) method...
April 7, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
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