keyword
MENU ▼
Read by QxMD icon Read
search

Chemical restraint

keyword
https://www.readbyqxmd.com/read/28915909/differential-signal-sensitivities-can-contribute-to-the-stability-of-multispecies-bacterial-communities
#1
János Juhász, Dóra Bihary, Attila Jády, Sándor Pongor, Balázs Ligeti
BACKGROUND: Bacterial species present in multispecies microbial communities often react to the same chemical signal but at vastly different concentrations. The existence of different response thresholds with respect to the same signal molecule has been well documented in quorum sensing which is one of the best studied inter-cellular signalling mechanisms in bacteria. The biological significance of this phenomenon is still poorly understood, and cannot be easily studied in nature or in laboratory models...
September 15, 2017: Biology Direct
https://www.readbyqxmd.com/read/28891701/sedative-effects-of-intranasal-midazolam-administration-in-wild-caught-blue-fronted-amazon-amazona-aestiva-and-orange-winged-amazon-amazona-amazonica-parrots
#2
Débora P H Schaffer, Nayone L L C de Araújo, Ana Cláudia S Raposo, Emanoel F Martins Filho, João Victor R Vieira, Arianne P Oriá
Safe and effective sedation protocols are important for chemical restraint of birds in clinical and diagnostic procedures, such as clinical evaluations, radiographic positioning, and blood collection. These protocols may reduce stress and ease the management of wild-caught birds, which are susceptible to injury or death when exposed to stressful situations. We compare the sedative effect of intranasal midazolam in wild-caught blue-fronted (Amazona aestiva) and orange-winged (Amazona amazonica) Amazon parrots...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28887093/repeated-restraint-stress-increases-seizure-susceptibility-by-activation-of-hippocampal-endoplasmic-reticulum-stress
#3
Xinjian Zhu, Jingde Dong, Zhengrong Xia, Aifeng Zhang, Jie Chao, Honghong Yao
A growing body of evidence suggests that stress triggers a variety of pathophysiological responses. Recent studies show that stress produces enduring effects on structure and function of hippocampus, which is one of the most important structures involved in epilepsy. In the present study, we determined the effect of repeated restraint stress exposure on the susceptibility of pentylenetetrazole (PTZ)-induced seizures and the possible mechanisms involved using a rodent model. Our results show that mice subjected to repeated restraint stress exhibited shorter latency to PTZ-induced tonic-clonic seizures and higher seizure severity, suggesting chronic restraint stress increases seizure susceptibility...
September 5, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28862842/cyanine-conformational-restraint-in-the-far-red-range
#4
Megan S Michie, Ralph Götz, Christian Franke, Matthew Bowler, Nikita Kumari, Valentin Magidson, Marcia Levitus, Jadranka Loncarek, Markus Sauer, Martin J Schnermann
Far-red cyanine fluorophores find extensive use in modern microscopy despite modest quantum yields. To improve the photon output of these molecules, we report a synthetic strategy that blocks the major deactivation pathway: excited-state trans-to-cis polyene rotation. In the key transformation, a protected dialdehyde precursor undergoes a cascade reaction to install the requisite tetracyclic ring system. The resulting molecules exhibit the characteristic features of conformational restraint, including improved fluorescence quantum yield and extended lifetime...
September 1, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28843527/factors-associated-with-the-trend-of-physical-and-chemical-restraint-use-among-long-term-care-facility-residents-in-hong-kong-data-from-an-11-year-observational-study
#5
Kuen Lam, Joseph S K Kwan, Chi Wai Kwan, Alice M L Chong, Claudia K Y Lai, Vivian W Q Lou, Angela Y M Leung, Justina Y W Liu, Xue Bai, Iris Chi
BACKGROUND: Negative effects of restraint use have been well-documented. However, the prevalence of restraints use has been high in long-term care facilities in Hong Kong compared with other countries and this goes against the basic principles of ethical and compassionate care for older people. The present study aimed to review the change in the prevalence of physical and chemical restraint use in long-term care facilities (LTCFs) over a period of 11 years in Hong Kong and to identify the major factors associated with their use...
August 23, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28762965/experimental-charge-density-studies-data-reduction-and-model-quality-the-more-the-better
#6
Regine Herbst-Irmer, Dietmar Stalke
In this review, recent developments concerning data and model quality in experimental charge-density investigations from a personal view-point are described. Data quality is not only achieved by the high resolution, high I/σ(I) values, low merging R values and high multiplicity. The quality of the innermost reflections especially is crucial for mapping the density distribution of the outermost valence electrons and can be monitored by (I/σ)(asymptotic). New detector technologies seem to be promising improvements...
August 1, 2017: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
https://www.readbyqxmd.com/read/28749263/measuring-intraocular-pressure-in-white-s-tree-frogs-litoria-caerulea-by-rebound-tonometry-comparing-device-time-of-day-and-manual-versus-chemical-restraint-methods
#7
Jennifer C Hausmann, Ashley Krisp, Kurt Sladky, Paul E Miller, Christoph Mans
Ocular diseases reported in frogs include uveitis and glaucoma, which are associated with changes in intraocular pressure (IOP). The objectives of this study were to characterize the normal IOP for White's tree frogs ( Litoria caerulea ) using two types of rebound tonometers, and to assess whether time of day or method of restraint affected IOP. Eighteen conscious, unrestrained, ophthalmologically normal frogs were used to measure IOP using TonoVet® and TonoLab® tonometers, at three time points during the day...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28659758/chronic-oxidative-stress-mitochondrial-dysfunction-nrf2-activation-and-inflammation-in-the-hippocampus-accompany-heightened-systemic-inflammation-and-oxidative-stress-in-an-animal-model-of-gulf-war-illness
#8
Geetha A Shetty, Bharathi Hattiangady, Dinesh Upadhya, Adrian Bates, Sahithi Attaluri, Bing Shuai, Maheedhar Kodali, Ashok K Shetty
Memory and mood dysfunction are the key symptoms of Gulf war illness (GWI), a lingering multi-symptom ailment afflicting >200,000 veterans who served in the Persian Gulf War-1. Research probing the source of the disease has demonstrated that concomitant exposures to anti-nerve gas agent pyridostigmine bromide (PB), pesticides, and war-related stress are among the chief causes of GWI. Indeed, exposures to GWI-related chemicals (GWIR-Cs) and mild stress in animal models cause memory and mood impairments alongside reduced neurogenesis and chronic low-level inflammation in the hippocampus...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28625000/mechanical-restraint-in-an-emergency-department-a-consecutive-series-of-593-cases
#9
Nicolas Beysard, Bertrand Yersin, Pierre-Nicolas Carron
The objective is to describe the characteristics of mechanically restrained patients in the emergency department (ED) of a university hospital and to evaluate the quality of restraint documentation that was filled out according to the dedicated protocol with respect to the law on restraint. All adult patients (≥16 years) who were admitted to the ED from January 2009 to December 2010 and were mechanically restrained were included. We assessed medical and demographic characteristics, the completeness of the dedicated protocol, and the concomitant use of chemical sedation...
June 17, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28502161/formation-and-inhibition-of-metallic-lithium-microstructures-in-lithium-batteries-driven-by-chemical-crossover
#10
Wangda Li, Un-Hyuck Kim, Andrei Dolocan, Yang-Kook Sun, Arumugam Manthiram
The formation of metallic lithium microstructures in the form of dendrites or mosses at the surface of anode electrodes (e.g., lithium metal, graphite, and silicon) leads to rapid capacity fade and poses grave safety risks in rechargeable lithium batteries. We present here a direct, relative quantitative analysis of lithium deposition on graphite anodes in pouch cells under normal operating conditions, paired with a model cathode material, the layered nickel-rich oxide LiNi0.61Co0.12Mn0.27O2, over the course of 3000 charge-discharge cycles...
June 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28499676/articles-that-may-change-your-practice-chemical-restraint-of%C3%A2-agitated-patients
#11
REVIEW
Russell D MacDonald, Suad Albulushi
No abstract text is available yet for this article.
May 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28488849/solution-conformations-and-dynamics-of-substrate-bound-cytochrome-p450-mycg
#12
Drew R Tietz, Larissa M Podust, David H Sherman, Thomas C Pochapsky
MycG is a P450 monooxygenase that catalyzes the sequential hydroxylation and epoxidation of mycinamicin IV (M-IV), the last two steps in the biosynthesis of mycinamicin II, a macrolide antibiotic isolated from Micromonospora griseorubida. The crystal structure of MycG with M-IV bound was previously determined but showed the bound substrate in an orientation that did not rationalize the observed regiochemistry of M-IV hydroxylation. Nuclear magnetic resonance paramagnetic relaxation enhancements provided evidence of an orientation of M-IV in the MycG active site more compatible with the observed chemistry, but substrate-induced changes in the enzyme structure were not characterized...
May 30, 2017: Biochemistry
https://www.readbyqxmd.com/read/28485576/new-lanthanide-tag-for-the-generation-of-pseudocontact-shifts-in-dna-by-site-specific-ligation-to-a-phosphorothioate-group
#13
Zuyan Wu, Michael D Lee, Thomas J Carruthers, Monika Szabo, Matthew L Dennis, James D Swarbrick, Bim Graham, Gottfried Otting
Pseudocontact shifts (PCS) generated by paramagnetic lanthanides provide a rich source of long-range structural restraints that can readily be measured by nuclear magnetic resonance (NMR) spectroscopy. Many different lanthanide-binding tags have been designed for site-specific tagging of proteins, but established routes for tagging DNA with a single metal ion rely on difficult chemical synthesis. Here we present a simple and practical strategy for site-specific tagging of inexpensive phosphorothioate (PT) oligonucleotides...
June 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28402533/caregiver-perspectives-about-using-antipsychotics-and-other-medications-for-symptoms-of-dementia
#14
John William Kerns, Jonathan D Winter, Katherine M Winter, Christine C Kerns, Rebecca S Etz
Background and Objectives: To avoid "chemical restraints," policies and guidelines have been implemented to curb the use of medications for behavioral and psychological symptoms of dementia (BPSD). Antipsychotics have been particularly targeted because of their rare severe side effects. Consequently, caregiver directed non-pharmacologic therapies have increased while medication use for BPSD has diminished. Despite such initiatives, however, antipsychotics continue to be prescribed "off-label" for roughly 20% of nursing home patients...
April 11, 2017: Gerontologist
https://www.readbyqxmd.com/read/28379112/comparison-of-two-sedation-protocols-for-short-electroretinography-in-cats
#15
María J Del Sole, Pablo Nejamkin, Verónica Cavilla, Paula Schaiquevich, Laura Moreno
Objectives The objectives were to compare two different sedative combinations, xylazine-ketamine and dexmedetomidine-ketamine, on the short electroretinography (ERG) protocol and their impact on sedative effect, reversal times and physiological variables in cats. Methods Six healthy spayed female domestic cats were sedated using one of two ketamine-containing protocols: intramuscular xylazine hydrochloride (1 mg/kg) plus ketamine hydrochloride (3 mg/kg) (XK), and dexmedetomidine hydrochloride (5 µg/kg) plus ketamine hydrochloride (3 mg/kg) (DK)...
April 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28369637/nmr-based-method-of-small-changes-reveals-how-dna-mutator-apobec3a-interacts-with-its-single-stranded-dna-substrate
#16
Stefan Harjes, Geoffrey B Jameson, Vyacheslav V Filichev, Patrick J B Edwards, Elena Harjes
APOBEC3 proteins are double-edged swords. They deaminate cytosine to uracil in single-stranded DNA and provide protection, as part of our innate immune system, against viruses and retrotransposons, but they are also involved in cancer evolution and development of drug resistance. We report a solution-state model of APOBEC3A interaction with its single-stranded DNA substrate obtained with the 'method of small changes'. This method compares pairwise the 2D 15N-1H NMR spectra of APOBEC3A bearing a deactivating mutation E72A in the presence of 36 slightly different DNA substrates...
May 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28319851/-31-p-dephased-13-c-detected-redor-for-nmr-crystallography-at-natural-isotopic-abundance
#17
Alexander I Greenwood, Mary C Clay, Chad M Rienstra
Typically, the process of NMR-based structure determination relies on accurately measuring a large number of internuclear distances to serve as restraints for simulated annealing calculations. In solids, the rotational-echo double-resonance (REDOR) experiment is a widely used approach to determine heteronuclear dipolar couplings corresponding to distances usually in the range of 1.5-8Å. A challenge in the interpretation of REDOR data is the degeneracy of symmetric subunits in an oligomer or equivalent molecules in a crystal lattice, which produce REDOR trajectories that depend explicitly on two or more distances instead of one...
May 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28315642/comparison-of-atipamezole-with-yohimbine-for-antagonism-of-xylazine-in-mice-anesthetized-with-ketamine-and-xylazine
#18
Christopher F Janssen, Pauline Maiello, M Jerry Wright, Kara B Kracinovsky, Joseph T Newsome
The α2 adrenergic agonist xylazine produces a sedative effect and is typically combined with ketamine and used for anesthesia or chemical restraint of laboratory mice. Xylazine's sedative effect-and its undesirable side effects of bradycardia, hypotension, and poor tissue perfusion-can be reversed by administration of α2 antagonists, such as atipamezole or yohimbine. Although atipamezole and yohimbine dosing guidelines are available for mice, no controlled comparison has been performed to guide the lab animal community in the selection of one over the other...
March 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28263534/cytotoxicity-of-ketamine-xylazine-and-hellabrunn-mixture-in-liver-heart-and-kidney-derived-cells-from-fallow-deer
#19
Veronika Kovacova, Ehdaa Eltayeb Eltigani Abdelsalam, Hana Bandouchova, Jiri Brichta, Barbora Havelkova, Vladimir Piacek, Frantisek Vitula, Jiri Pikula
OBJECTIVES: Chemical restraint of wild animals is practiced to accomplish intended procedures such as capture, clinical examination, collection of diagnostic samples, treatment and/or transport. Extra-label use of animal medicinal drugs is often necessary in wildlife because most approved therapeutics do not list wild species on the labelling. Here, we used cellular in vitro models, a cutting-edge tool of biomedical research, to examine cytotoxicity of anaesthetic agents in fallow deer and extrapolate these data for anaesthetic risks in wildlife...
December 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28208298/surface-accessibility-and-dynamics-of-macromolecular-assemblies-probed-by-covalent-labeling-mass-spectrometry-and-integrative-modeling
#20
Carla Schmidt, Jamie A Macpherson, Andy M Lau, Ken Wei Tan, Franca Fraternali, Argyris Politis
Mass spectrometry (MS) has become an indispensable tool for investigating the architectures and dynamics of macromolecular assemblies. Here we show that covalent labeling of solvent accessible residues followed by their MS-based identification yields modeling restraints that allow mapping the location and orientation of subunits within protein assemblies. Together with complementary restraints derived from cross-linking and native MS, we built native-like models of four heterocomplexes with known subunit structures and compared them with available X-ray crystal structures...
February 7, 2017: Analytical Chemistry
keyword
keyword
73229
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"