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Joseph Ochaba, Eva L Morozko, Jacqueline G O'Rourke, Leslie M Thompson
The accumulation of misfolded proteins is central to pathology in Huntington's disease (HD) and many other neurodegenerative disorders. Specifically, a key pathological feature of HD is the aberrant accumulation of mutant HTT (mHTT) protein into high molecular weight complexes and intracellular inclusion bodies composed of fragments and other proteins. Conventional methods to measure and understand the contributions of various forms of mHTT-containing aggregates include fluorescence microscopy, western blot analysis, and filter trap assays...
February 27, 2018: Journal of Visualized Experiments: JoVE
Magdalini Tsintou, Kyriakos Dalamagkas, Alexander Seifalian
Central Nervous System (CNS) repair has been a challenge, due to limited CNS tissue regenerative capacity. The emerging tools that neural engineering has to offer have opened new pathways towards the discovery of novel therapeutic approaches for CNS disorders. Collagen has been a preferable material for neural tissue engineering due to its similarity to the extracellular matrix, its biocompatibility, and antigenicity. The aim was to compare properties of a plastically compressed collagen hydrogel with the ones of a promising collagen-genipin injectable hydrogel and a collagen-only hydrogel for clinical CNS therapy applications...
2018: International Journal of Biomaterials
Nashwa M Samra, Shaimaa Emad El Abrak, Hanaa H El Dash, Mona El Said El Raziky, Manal A El Sheikh
BACKGROUND: Hepatic osteodystrophy caused by vitamin D and calcium malabsorption is thought to develop in children with cholestatic liver disease leading to secondary hyperparathyroidism and rickets or osteomalacia. The aim of this study was to evaluate the dental and bone mineral densities and the serum level of vitamin D in cholestatic infants and children and to correlate this process with clinical and laboratory parameters. METHODS: This is a cross-sectional study that include 50 patients presenting with cholestasis...
March 15, 2018: Clinics and Research in Hepatology and Gastroenterology
Raimund Lechner, Thomas Küpper, Markus Tannheimer
INTRODUCTION: History is full of examples of the influence of the mountain environment on warfare. The aim of this article is to identify the main environmental hazards and summarize countermeasures to mitigate the impact of this unique environment. METHODS: A selective PubMed and Internet search was conducted. Additionally, we searched bibliographies for useful supplemental literature and included the recommendations of the leading mountain medicine and wilderness medicine societies...
March 15, 2018: Wilderness & Environmental Medicine
Katherine A Bell, Carol L Wagner, Wei Perng, Henry A Feldman, Roman J Shypailo, Mandy B Belfort
OBJECTIVES: To assess the validity of body mass index (BMI) and age- and sex-standardized BMI z-score (BMIZ) as surrogates for adiposity (body fat percentage [BF%], fat mass, and fat mass index [kg/m2 ]) at 3 time points in infancy (1, 4, and 7 months) and to assess the extent to which the change in BMIZ represents change in adiposity. STUDY DESIGN: We performed a secondary analysis of 447 full-term infants in a previous trial of maternal vitamin D supplementation during lactation...
March 15, 2018: Journal of Pediatrics
Tom J Crijns, Stein J Janssen, Jacob T Davis, David Ring, Hugo B Sanchez
BACKGROUND: Radiographic fracture classification helps with research on prognosis and treatment. AO/OTA classification into fracture type has shown to be reliable, but further classification of fractures into subgroups reduces the interobserver agreement and takes a considerable amount of practice and experience in order to master. QUESTIONS/PURPOSES: We assessed: (1) differences between more and less experienced trauma surgeons based on hip fractures treated per year, years of experience, and the percentage of their time dedicated to trauma, (2) differences in the interobserver agreement between classification into fracture type, group, and subgroup, and (3) differences in the interobserver agreement when assessing fracture stability compared to classifying fractures into type, group and subgroup...
March 14, 2018: Injury
Yuta Ogata, Masaya Anan, Makoto Takahashi, Takuya Takeda, Kenji Tanimoto, Tomonori Sawada, Koichi Shinkoda
OBJECTIVES: The purpose of this study was to investigate between movement patterns of trunk extension from full unloaded flexion and lifting techniques, which could provide valuable information to physical therapists, doctors of chiropractic, and other manual therapists. METHODS: A within-participant study design was used. Whole-body kinematic and kinetic data during lifting and full trunk flexion were collected from 16 healthy male participants using a 3-dimensional motion analysis system (Vicon Motion Systems)...
March 2018: Journal of Manipulative and Physiological Therapeutics
Suad Sivić, Larisa Gavran, Salih Tandir, Elvir Peštalić
Aim To determine most common factors making patients with high blood pressure seek professionally unacceptable treatment of hypertension at the Emergency Department. Methods The survey was conducted at the Emergency Department of the Primary Health Care in Gradačac on randomly selected 207 patients who requested medical help because of high blood pressure. For all patients arterial blood pressure and body mass index (BMI) were measured. A survey about knowledge and attitudes regarding habits that affect high blood pressure as well as the socio-economic conditions was made...
February 1, 2018: Medicinski Glasnik
M Gioffrè-Florio, L M Murabito, C Visalli, F P Pergolizzi, F Famà
AIM: Trauma, in geriatric patients, increases with age, and is a leading cause of disability and institutionalization, resulting in morbidity and mortality. The aim of our study was to analyse the prevalence of trauma, the related risk factors, mortality and sex differences in the prevalence in a geriatric population. PATIENTS AND METHOD: We observed 4,554 patients (≥65 years) with home injuries or car accidents. Patients were evaluated with ISS (Injury Severity Score) and major trauma with ATLS (Advanced Trauma Life Support)...
January 2018: Il Giornale di Chirurgia
Islam Abdelrahman, Ingrid Steinvall, Bassem Mossaad, Folke Sjoberg, Moustafa Elmasry
BACKGROUND: Gynaecomastia is a benign enlargement of the male breast, of which the psychological burden on the patient can be considerable, with the increased risk of disorders such as depression, anxiety, and social phobia. Minimal scarring can be achieved by liposuction alone, though it is known to have a limited effect on the dense glandular and fibroconnective tissues. We know of few studies published on "liposuction alone", so we designed this study to evaluate the outcome of combining liposuction with glandular liposculpturing through two axillary incisions as a single treatment for the management of grades I and II gynaecomastia...
March 16, 2018: Aesthetic Plastic Surgery
David S Olshan, Daniel J Rader
The angiopoietin-like proteins are a family of proteins that share structural similarities to the angiopoietins. These proteins have been described to play a key role in the regulation of a myriad of physiologic processes, including serving as essential modulators of lipid and glucose metabolism. Angiopoietin-like protein 4 (ANGPTL4) is a key regulator of lipoprotein lipase, and its modulation has been shown to significantly impact the body's processing and distribution of triglycerides and cholesterol. Although more research remains to elucidate the full range of mechanisms through which ANGPTL4 affects triglyceride and cholesterol homeostasis, current research has associated decreased ANGPTL4 function with a beneficial effect on lipid parameters and overall cardiovascular disease risk, opening the possibility of ANGPTL4 as a new therapeutic target for the treatment of cardiovascular disease...
February 2, 2018: Journal of Clinical Lipidology
George Kunnackal John, Lin Wang, Julie Nanavati, Claire Twose, Rajdeep Singh, Gerard Mullin
Dietary alteration of the gut microbiome is an important target in the treatment of obesity. Animal and human studies have shown bidirectional weight modulation based on the probiotic formulation used. In this study, we systematically reviewed the literature and performed a meta-analysis to assess the impact of prebiotics, probiotics and synbiotics on body weight, body mass index (BMI) and fat mass in adult human subjects. We searched Medline (PubMed), Embase, the Cochrane Library and the Web of Science to identify 4721 articles, of which 41 were subjected to full-text screening, yielding 21 included studies with 33 study arms...
March 16, 2018: Genes
Lei Liu, Jun Ma, Qiang Xue, Jingbang Shao, Yijun Chen, Gang Zeng
The optimization design of well spacing (WS) and aeration rate (AR) is crucial to the in situ aeration system operation in under long-term and high-efficiency conditions. This optimization design aims to transport additional air into landfills and to develop an improved oxygen environment for enhancing aerobic degradation. Given the specific pore structure distribution within landfills, providing sufficient oxygen in all waste bodies in field sites through gas wells is difficult. The design of well distribution also lacks adequate criteria...
March 12, 2018: Waste Management
Pushp Bajaj, Xiao-Gang Wang, Tucker Carrington, Francesco Paesani
Full-dimensional vibrational spectra are calculated for both X- (H2 O) and X- (D2 O) dimers (X = F, Cl, Br, I) at the quantum-mechanical level. The calculations are carried out on two sets of recently developed potential energy functions (PEFs), namely, Thole-type model energy (TTM-nrg) and many-body energy (MB-nrg), using the symmetry-adapted Lanczos algorithm with a product basis set including all six vibrational coordinates. Although both TTM-nrg and MB-nrg PEFs are derived from coupled-cluster single double triple-F12 data obtained in the complete basis set limit, they differ in how many-body effects are represented at short range...
March 14, 2018: Journal of Chemical Physics
Shuai Zhang, Burkhard Militzer, Lorin X Benedict, François Soubiran, Philip A Sterne, Kevin P Driver
Carbon-hydrogen plasmas and hydrocarbon materials are of broad interest to laser shock experimentalists, high energy density physicists, and astrophysicists. Accurate equations of state (EOSs) of hydrocarbons are valuable for various studies from inertial confinement fusion to planetary science. By combining path integral Monte Carlo (PIMC) results at high temperatures and density functional theory molecular dynamics results at lower temperatures, we compute the EOSs for hydrocarbons from simulations performed at 1473 separate (ρ, T)-points distributed over a range of compositions...
March 14, 2018: Journal of Chemical Physics
Jonathan Jerke, Bill Poirier
Using a combination of ideas, the ground and several excited electronic states of the helium atom and the hydrogen molecule are computed to chemical accuracy-i.e., to within 1-2 mhartree or better. The basic strategy is very different from the standard electronic structure approach in that the full two-electron six-dimensional (6D) problem is tackled directly, rather than starting from a single-electron Hartree-Fock approximation. Electron correlation is thus treated exactly, even though computational requirements remain modest...
March 14, 2018: Journal of Chemical Physics
Giovanni Di Liberto, Riccardo Conte, Michele Ceotto
We present an investigation of vibrational features in water clusters performed by means of our recently established divide-and-conquer semiclassical approach [M. Ceotto, G. Di Liberto, and R. Conte, Phys. Rev. Lett. 119, 010401 (2017)]. This technique allows us to simulate quantum vibrational spectra of high-dimensional systems starting from full-dimensional classical trajectories and projection of the semiclassical propagator onto a set of lower dimensional subspaces. The potential energy surface employed is a many-body representation up to three-body terms, in which monomers and two-body interactions are described by the high level Wang-Huang-Braams-Bowman (WHBB) water potential, while, for three-body interactions, calculations adopt a fast permutationally invariant ab initio surface at the same level of theory of the WHBB 3-body potential...
March 14, 2018: Journal of Chemical Physics
Sidney Bovet, Henrique Galvan Debarba, Bruno Herbelin, Eray Molla, Ronan Boulic
With the broad range of motion capture devices available on the market, it is now commonplace to directly control the limb movement of an avatar during immersion in a virtual environment. Here, we study how the subjective experience of embodying a full-body controlled avatar is influenced by motor alteration and self-contact mismatches. Self-contact is in particular a strong source of passive haptic feedback and we assume it to bring a clear benefit in terms of embodiment. For evaluating this hypothesis, we experimentally manipulate self-contacts and the virtual hand displacement relatively to the body...
April 2018: IEEE Transactions on Visualization and Computer Graphics
Moayad Saad, Sebastiaan Bijttebier, An Matheeussen, Evy Verbueken, Casper Pype, Christophe Casteleyn, Chris Van Ginneken, Louis Maes, Paul Cos, Steven Van Cruchten
This article represents data regarding a study published in Toxicology in vitro entitled " in vitro CYP-mediated drug metabolism in the zebrafish (embryo) using human reference compounds" (Saad et al., 2017) [1]. Data were acquired with ultra-performance liquid chromatography - accurate mass mass spectrometry (UPLC-amMS). A full spectrum scan was conducted for the testosterone (TST) metabolites from the microsomal stability assay in zebrafish and humans. The microsomal proteins were extracted from adult zebrafish male (MLM) and female (FLM) livers, whole body homogenates of 96 h post fertilization larvae (EM) and a pool of human liver microsomes from 50 donors (HLM)...
February 2018: Data in Brief
Myles W O'Brien, William R Wojcik, Lisette D'Entremont, Jonathon R Fowles
The purpose of the study was to: 1) Validate the PiezoRx® for steps and intensity related physical activity in free-living conditions compared to the criterion measure. 2) Compare PiezoRx®'s steps and intensity related physical activity to physiological assessments. 3) To assess the utility of the PiezoRx® in a subsample of participants. Thirty-nine participants consisting of 28 females aged 54.9±10.6 (33-74) years and 11 males aged 63.9±10.9 (44-80) years wore the PiezoRx® physical activity monitor and the ActiGraph® accelerometer for one full week and completed a physical assessment...
2018: International Journal of Exercise Science
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