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J Matthew Webster, Megan F Dickson, Michele Staton
OBJECTIVE: Although driving under the influence (DUI) arrests occur at higher rates in rural areas and previous studies have shown more extensive drug use histories, little is known about how this relates to the prevalence and frequency of drugged driving. The present study examined drug use and drugged driving patterns among a sample of rural DUI offenders. METHODS: Convicted, rural DUI offenders (N = 118) completed a one-time, confidential research interview focused on drug use and drugged driving...
March 14, 2018: Traffic Injury Prevention
O Somasundaram, Ponnudurai Ratnaraj
Period of Custodial Care Only: The magnificent "Institute of Mental Health" has its history almost from 1795 when the East India company appointed Surgeon Valentine Conolly to be in charge of a "House for accommodating persons of unsound mind." After a few transitions, backed by a government order for the construction of a lunatic asylum in a 66 1/2 acre site, the asylum started functioning from 1871. The period of about six decades from its inception could be referred to as "the period of custodial care...
February 2018: Indian Journal of Psychiatry
Naresh Mullaguri, Nakul Katyal, Aarti Sarwal, Jonathan M Beary, Pravin George, Naresh Karthikeyan, Premkumar Nattanamai, Christopher R Newey
Although a neurological examination is fundamental to the evaluation of comatose patients, it is less reliable in a medically induced coma. A commonly misinterpreted finding in patients in a pentobarbital coma is altered pupillary reactivity secondary to an exaggerated ciliospinal reflex. Recognizing an exaggerated ciliospinal reflex in patients in a pentobarbital coma is important and may prevent unnecessary intervention. We present a patient induced in a pentobarbital coma for the treatment of status epilepticus who exhibited a nonreactive pupil secondary to an exaggerated ciliospinal reflex confirmed by pupillometry...
December 30, 2017: Curēus
Ling Chen, Zhiping Song, Xueting Liu, Liangqia Guo, Mei-Jin Li, Fengfu Fu
In this work, barbituric acid-modified graphitic carbon nitride (BCN) nanosheets with blue-green fluorescence were prepared by a copolymerization of dicyandiamide with barbituric acid and then by a chemical oxidation process. A ratiometric fluorescent sensor for Cu2+ was designed by using BCN nanosheets as the report probe and Ru(bpy)3 Cl2 as the reference probe. In the presence of different concentrations of Cu2+ , the blue-green fluorescence of BCN nanosheets was drastically quenched, while the red fluorescence of Ru(bpy)3 Cl2 remained constant...
March 1, 2018: Analyst
Rafael Salas, Karla Ramirez, Victor Tortorici, Horacio Vanegas, Enrique Vazquez
The so-called on- and off-cells of the rostral ventromedial medulla (RVM) send their axons to the spinal dorsal horn. Activation of on-cells precedes and coincides with a facilitation, and activation of off-cells coincides with an inhibition, of withdrawal reflexes elicited by noxious agents. Considerable evidence supports the notion that on- and off-cells modulate nocifensive reflexes during opioid and non-opioid action and also during normal circumstances and during peripheral neuropathy and inflammation...
February 21, 2018: Brain Research
Todd Rabkin Golden, Veronika Solnicky, Rita Wadeea, Sehem Ghazala
We present a rare case of pentobarbital infusion causing propylene glycol-induced lactic acidosis, during refractory status epilepticus treatment in a 66-year-old man without seizure history.
February 22, 2018: BMJ Case Reports
Xin Wang, Sys Stybe Johansen, Marie Katrine Klose Nielsen, Kristian Linnet
Hair can serve as a specimen for identifying past drug exposure. Segmental hair analysis may differentiate a single exposure from chronic use. Consequently, segmental hair analysis is useful for disclosing a single drug ingestion, as well as for determining repeated exposures in drug-facilitated crimes (DFCs). This paper presents an overview of toxicological investigations that have used hair analysis in DFC cases from 2009 to 2016 in Denmark. Hair concentrations were determined for 24 DFC-related drugs and metabolites, including benzodiazepines and other hypnotics, antihistamines, opioid analgesics, antipsychotics, barbiturates, and illicit drugs from DFC cases...
February 5, 2018: Forensic Science International
Mayeul Collot, Tkhe-Kyong Fam, Pichandi Ashokkumar, Orestis Faklaris, Thierry Galli, Lydia Danglot, Andrey S Klymchenko
Lipid droplets (LDs) are intracellular lipid-rich organelles that regulate the storage of neutral lipids and were recently found to be involved in many physiological processes, metabolic disorders as well as diseases including obesity, diabetes and cancers. Herein we present a family of new fluorogenic merocyanine fluorophores based on an indolenine moiety and a dioxaborine barbiturate derivative. These so-called StatoMerocyanines (SMCy) span their fluorescence from yellow to the near infrared (NIR) in oil with an impressive fluorescence enhancement compared to aqueous media...
February 15, 2018: Journal of the American Chemical Society
Shinsuke Muraoka, Yoshio Araki, Goro Kondo, Michihiro Kurimoto, Yoshiki Shiba, Kenji Uda, Shinji Ota, Sho Okamoto, Toshihiko Wakabayashi
OBJECTIVE: Although revascularization surgery for patients with moyamoya disease can effectively prevent ischemic events and thus improve the long-term clinical outcome, the incidence of postoperative ischemic complications affects patients' quality of life. This study aimed to clarify the risk factors associated with postoperative ischemic complications and to discuss the appropriate perioperative management. METHODS: Fifty-eight revascularization operations were performed in 37 children with moyamoya disease...
February 9, 2018: World Neurosurgery
Diksha Bhatt, Krati Vyas, Shakuntala Singh, P J John, Inderpal Soni
Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. The present study aimed to screen the neurobiochemical effects of Tartrazine in Wistar rats after administering the Acceptable Daily Intake (ADI) level. Tartrazine (7.5 mg/kg b.w.) was administered to 21 day old weanling rats through oral gavage once daily for 40 consecutive days. On 41st day, the animals were sacrificed and brain sub regions namely, frontal cortex, corpus striatum, hippocampus and cerebellum were used to determine activities of anti-oxidant enzymes viz...
February 7, 2018: Food and Chemical Toxicology
Nicolas Nesseler, Antoine Roquilly, Sigismond Lasocki, Claire Dahyot-Fizelier, Yoann Launey, Cinotti Raphaël, Marine Hubert, Sonia Isslame, Pierre-François Perrigault, Thomas Geeraerts, Olivier Mimoz, Fouad Marhar, Yannick Mallédant, Fanny Feuillet, Karim Asehnoune, Philippe Seguin
BACKGROUND: Knowledge of the factors associated with the decision to withdraw or withhold life support (WWLS) in brain-injured patients is limited. However, most deaths in these patients may involve such a decision. OBJECTIVES: To identify factors associated with the decision to WWLS in brain-injured patients requiring mechanical ventilation who survive the first 24 h in the ICU, and to analyse the outcomes and time to death. DESIGN: A retrospective observational multicentre study...
February 3, 2018: European Journal of Anaesthesiology
Jacob J van den Berg, Samuel Adeyemo, Mary B Roberts, Beth C Bock, L A R Stein, Rosemarie A Martin, Donna R Parker, Jennifer G Clarke
BACKGROUND: Problems with self-reported drug use include difficulties with recall and recognition as well as the desire to respond to questions in a socially desirable manner. Various methods have been developed to improve and/or validate estimates based on direct questioning of individuals regarding their substance use. For this study, we were interested in validating self-reported use of: 1) tobacco, 2) marijuana, and 3) other substances (i.e., heroin, cocaine, opiates, oxycodone, benzodiazepines, methamphetamine, phencyclidine, and barbiturates) employing urinalysis among inmates who participated in a randomized controlled trial of a smoking abstinence intervention in a tobacco-free prison located in the northeastern United States...
February 8, 2018: Substance Use & Misuse
Josiah McKenna, Rachel Jett, Kevin Shanks, Nicholas E Manicke
Immunoassays and high-performance liquid chromatography (HPLC) coupled with mass spectrometry (MS) are both widely used methods for drug screening in toxicology. We investigated an alternative approach for rapid drug screening: paper spray MS (PS-MS). In paper spray, the biofluid sample is spotted onto a paper substrate. Upon application of a spray solvent and an electric potential, extraction and ionization occur directly from the paper without any need for additional sample preparation. We developed two paper spray high-resolution MS/MS targeted drug screening assays using a quadrupole-orbitrap mass spectrometer, one the positive ion mode and one in the negative ion mode...
January 25, 2018: Journal of Analytical Toxicology
Ching-Hong Tan, Jeffrey Gorman, Andrew Wadsworth, Sarah Holliday, Selvam Subramaniyan, Samson A Jenekhe, Derya Baran, Iain McCulloch, James R Durrant
We report the synthesis of two barbiturate end-capped non-fullerene acceptors and demonstrate their efficient function in high voltage output organic solar cells. The acceptor with the lower LUMO level is shown to exhibit suppressed geminate recombination losses, resulting in enhanced photocurrent generation and higher overall device efficiency.
January 26, 2018: Chemical Communications: Chem Comm
Kim M Newkirk, Gordon Ehrensing, Agricola Odoi, Raymond C Boston, Nicholas Frank
OBJECTIVE To assess insulin, glucagon, and somatostatin expression within pancreatic islets of horses with and without insulin resistance. ANIMALS 10 insulin-resistant horses and 13 insulin-sensitive horses. PROCEDURES For each horse, food was withheld for at least 10 hours before a blood sample was collected for determination of serum insulin concentration. Horses with a serum insulin concentration < 20 μU/mL were assigned to the insulin-sensitive group, whereas horses with a serum insulin concentration > 20 μU/mL underwent a frequently sampled IV glucose tolerance test to determine sensitivity to insulin by minimal model analysis...
February 2018: American Journal of Veterinary Research
Daixin Ye, Andrew Ewing
General anesthetics are essential in many areas, however, the cellular mechanisms of anesthetic-induced amnesia and unconsciousness are incompletely understood. Exocytosis is the main mechanism of signal transduction and neuronal communication through the release of chemical transmitters from vesicles to the extracellular environment. Here, we use disk electrodes placed on top of PC12 cells to show that treatment with barbiturate induces fewer molecules released during exocytosis and changes the event dynamics perhaps by inducing a less stable fusion pore that is prone to close faster during partial exocytosis...
January 22, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
Maroof K Zafar, Leena Maddukuri, Amit Ketkar, Narsimha R Penthala, Megan R Reed, Sarah Eddy, Peter A Crooks, Robert L Eoff
Translesion DNA synthesis (TLS) performed by human DNA polymerase eta (hpol η) allows tolerance of damage from cis-diamminedichloroplatinum(II) (CDDP or cisplatin). We have developed hpol η inhibitors derived from N-aryl-substituted indole barbituric acid (IBA), indole thiobarbituric acid (ITBA), and indole quinuclidine scaffolds and identified 5-((5-chloro-1-(naphthalen-2-ylmethyl)-1H-indol-3-yl)methylene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (PNR-7-02), an ITBA derivative that inhibited hpol η activity with an IC 50 value of 8 μM and exhibited 5-10-fold specificity for hpol η over replicative pols...
January 30, 2018: Biochemistry
Praveen Naik, Rui Su, Mohamed R Elmorsy, Ahmed El-Shafei, Airody Vasudeva Adhikari
Herein, we report the design and synthesis of three new un-symmetrical metal-free carbazole based organic dyes, E1-3 with A-π-D-π-A architecture, as effective di-anchoring sensitizers in DSSCs. The new entities comprise carbazole as a donor scaffold connected to three different units, viz. cyano acetic acid, 2,4-thiazolidinedione and barbituric acid as acceptor/anchoring units via vinylene and phenylene as π-spacers at 3- and 6-positions of the carbazole ring, respectively. Photophysical, electrochemical and theoretical studies were carried out in order to assess their feasibility as active sensitizers...
January 16, 2018: Photochemical & Photobiological Sciences
Nader Daneshvar, Farhad Shirini, Mohaddeseh Safarpoor Nikoo Langarudi, Reyhaneh Karimi-Chayjani
Taurine, a β-amino acid that is abundantly available in the tissues of human and animals, is efficiently used as a green bio-organic catalyst in the preparation of some of the biologically active barbituric and thiobarbituric acid derivatives. In the presence of taurine, 5-Arylidene (thio) barbituric acid derivatives were prepared via Knovenagel reaction between aldehydes and (thio)barbituric acid. Using this reagent also pyrano[2,3-d]pyrimidinone(thione) derivatives were synthesized through a three-component reaction between aldehydes, (thio)barbituric and malononitrile...
December 21, 2017: Bioorganic Chemistry
Jacek Lubczak, Renata Lubczak, Iwona Zarzyka
The one-pot multicomponent synthesis of oligoetherols containing azacycles is described. They were obtained by reaction of isocyanuric, barbituric, or uric acid or melamine with glycidol and alkylene carbonates. The isolated products were characterized by physical methods and their properties were compared with the same compounds obtained in twostep protocol. The oligoetherols with 1,3,5-triazine ring obtained by both methods were then used to form polyurethane foams and their properties were compared.
December 2017: Acta Chimica Slovenica
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