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https://www.readbyqxmd.com/read/29150884/directional-local-field-potentials-a-tool-to-optimize-deep-brain-stimulation
#1
Gerd Tinkhauser, Alek Pogosyan, Ines Debove, Andreas Nowacki, Syed Ahmar Shah, Kathleen Seidel, Huiling Tan, John-Stuart Brittain, Katrin Petermann, Lazzaro di Biase, Markus Oertel, Claudio Pollo, Peter Brown, Michael Schuepbach
BACKGROUND: Although recently introduced directional DBS leads provide control of the stimulation field, programing is time-consuming. OBJECTIVES: Here, we validate local field potentials recorded from directional contacts as a predictor of the most efficient contacts for stimulation in patients with PD. METHODS: Intraoperative local field potentials were recorded from directional contacts in the STN of 12 patients and beta activity compared with the results of the clinical contact review performed after 4 to 7 months...
November 18, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29150593/rapid-and-efficient-crispr-cas9-based-mating-type-switching-of-saccharomyces-cerevisiae
#2
Ze-Xiong Xie, Leslie A Mitchell, Hui-Min Liu, Bing-Zhi Li, Duo Liu, Neta Agmon, Yi Wu, Xia Li, Xiao Zhou, Bo Li, Wen-Hai Xiao, Ming-Zhu Ding, Ying Wang, Ying-Jin Yuan, Jef D Boeke
Rapid and highly efficient mating-type switching of Saccharomyces cerevisiae enables a wide variety of genetic manipulations such as the construction of strains, for instance isogenic haploid pairs of both mating-types, diploids and polyploids. We used the CRISPR/Cas9 system to generate a double-strand break (DSB) at the MAT locus, and in a single co-transformation, both haploid and diploid cells were switched to the specified mating-type at ~80% efficiency. The mating-type of strains carrying either rod or ring chromosome III were switched, including those lacking HMLα and HMRa cryptic mating loci...
November 17, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29150511/sulfolobus-acidocaldarius-uptakes-pentoses-via-a-cut2-type-abc-transporter-and-metabolizes-them-through-the-aldolase-independent-weimberg-pathway
#3
Michaela Wagner, Lu Shen, Andreas Albersmeier, Nienke van der Kolk, Sujin Kim, Jaeho Cha, Christopher Bräsen, Jörn Kalinowski, Bettina Siebers, Sonja-Verena Albers
Sulfolobus spp. possess a great metabolic versatility and grow heterotrophically on various carbon sources such as different sugars and peptides. Known sugar transporters in Archaea predominantly belong to ABC transport systems. Although several ABC transporters for sugar uptake have been characterized in the crenarchaeon Sulfolobus solfataricus, only one homologue of these transporters, the maltose/maltooligomer transporter, could be identified in the closely related Sulfolobus acidocaldarius Comparison of the transcriptome of S...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150368/the-utility-of-ercp-in-pediatric-pancreatic-trauma
#4
Eric H Rosenfeld, Adam M Vogel, Denise B Klinkner, Mauricio Escobar, Barbara Gaines, Robert Russell, Brendan Campbell, Hale Wills, Anthony Stallion, David Juang, Rajan K Thakkar, Jeffrey Upperman, Mubeen Jafri, Randall Burd, Bindi J Naik-Mathuria
BACKGROUND/PURPOSE: Endoscopic retrograde cholangiopancreatography (ERCP) is an adjunct for pediatric pancreatic injury management, but its use and utility in pediatric patients are unclear. We set out to evaluate the use of ERCP and its effects on outcomes. METHODS: A retrospective review was performed for children who had pancreatic injuries at 22 pediatric trauma centers between 2010 and 2015. ERCP details and outcomes were collected. Analysis was performed using descriptive statistics and Wilcoxon rank-sum tests...
October 13, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29150084/radiology-led-lung-escalation-pathway-a-streamlined-innovative-service-expediting-the-diagnosis-of-lung-cancer
#5
J Cox, J Spratt, A Ajith, S Haydar, G Gordon, S Elwell, R Marsh
No abstract text is available yet for this article.
November 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29149496/predictive-factors-for-osteoradionecrosis-of-the-jaws-a-retrospective-study
#6
Hans P Sathasivam, Gareth R Davies, Nicholas M Boyd
BACKGROUND: Osteoradionecrosis of the jaw (ORNJ) is a well-recognized complication of radiotherapy. The purpose of this study was to assess predictive factors for the development of ORNJ. METHODS: A retrospective study of 325 patients with head and neck squamous cell carcinoma (HNSCC) treated at one institution between January 1, 1999, and December 31, 2008, was conducted. Outcome measure was the presence/absence of ORNJ. Time to event was recorded and Cox proportional hazard regression analysis was used to determine statistically significant predictive factors...
November 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/29147528/room-temperature-c-sp-2-h-oxidative-chlorination-via-photoredox-catalysis
#7
Lei Zhang, Xile Hu
Photoredox catalysis has been developed to achieve oxidative C-H chlorination of aromatic compounds using NaCl as the chlorine source and Na2S2O8 as the oxidant. The reactions occur at room temperature and exhibit exclusive selectivity for C(sp(2))-H bonds over C(sp(3))-H bonds. The method has been used for the chlorination of a diverse set of substrates, including the expedited synthesis of key intermediates to bioactive compounds and a drug.
October 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29145867/environmental-variables-associated-with-anopheline-larvae-distribution-and-abundance-in-yanomami-villages-within-unaltered-areas-of-the-brazilian-amazon
#8
Jordi Sánchez-Ribas, Joseli Oliveira-Ferreira, John E Gimnig, Cleomar Pereira-Ribeiro, Maycon Sebastião Alberto Santos-Neves, Teresa Fernandes Silva-do-Nascimento
BACKGROUND: Many indigenous villages in the Amazon basin still suffer from a high malaria burden. Despite this health situation, there are few studies on the bionomics of anopheline larvae in such areas. This publication aims to identify the main larval habitats of the most abundant anopheline species and to assess their associations with some environmental factors. METHODS: We conducted a 19-month longitudinal study from January 2013 to July 2014, sampling anopheline larvae in two indigenous Yanomami communities, comprised of four villages each...
November 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29144219/trypanosoma-sp-diversity-in-amazonian-bats-chiroptera-mammalia-from-acre-state-brazil
#9
Francisco C B Dos Santos, Cristiane V Lisboa, Samanta C C Xavier, Maria A Dario, Rair de S Verde, Armando M Calouro, André Luiz R Roque, Ana M Jansen
Bats are ancient hosts of Trypanosoma species and their flying ability, longevity and adaptability to distinct environments indicate that they are efficient dispersers of parasites. Bats from Acre state (Amazon Biome) were collected in four expeditions conducted in an urban forest (Parque Zoobotânico) and one relatively more preserved area (Seringal Cahoeira) in Rio Branco and Xapuri municipalities. Trypanosoma sp. infection was detected by hemoculture and fresh blood examination. Isolated parasite species were identified by the similarity of the obtained DNA sequence from 18S rDNA polymerase chain reaction and reference strains...
November 16, 2017: Parasitology
https://www.readbyqxmd.com/read/29140931/hemispheric-cerebral-oximetry-monitoring-during-pediatric-seizure-activity-in-a-pediatric-emergency-department
#10
Thomas J Abramo, Shane McKinney, James Moore, Richard Jacobs, Gregory Albert, Mark Meredith, Nicholas Hobart Porter, Elizabeth Storm, Errin Willis, Cruz Velasco Gonzalez, Hailey Hargrave, Brad Schneider, Gergory Sharp
BACKGROUND: Sustained neuronal activity during seizures causes cellular perturbations, alterations in cerebral physiology, and potentially neurological injury, a neurological emergency. With variable clinical manifestations of seizures, frequent failure of seizure recognition by providers in pediatric and developmentally challenged patients can increase seizure complications. Neuroresuscitation should include rapid cerebral physiology assessment for increased seizure recognition and optimal neurological outcomes...
November 15, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29140897/psychological-and-psychophysiological-effects-of-recuperative-music-postexercise
#11
Costas I Karageorghis, Andrew C Bruce, Suzanne T Pottratz, Rebecca C Stevens, Marcelo Bigliassi, Mark Hamer
PURPOSE: Few studies have examined the psychological and psychophysiological effects of recuperative music following exhaustive exercise. The main purpose of the present study was to examine the effects of two music conditions compared with a no-music control on psychological and psychophysiological recovery processes post-exercise. METHODS: A randomized, fully counterbalanced, crossover design was used. Core affect, salivary cortisol, heart rate, and blood pressure were measured before exhaustive exercise, immediately after, and in 10-, 20-, and 30-min intervals during passive recovery (21 women and 21 men; 20...
November 15, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29137138/metabolic-profile-of-the-cellulolytic-industrial-actinomycete-thermobifida-fusca
#12
Niti Vanee, J Paul Brooks, Stephen S Fong
Actinomycetes have a long history of being the source of numerous valuable natural products and medicinals. To expedite product discovery and optimization of biochemical production, high-throughput technologies can now be used to screen the library of compounds present (or produced) at a given time in an organism. This not only facilitates chemical product screening, but also provides a comprehensive methodology to the study cellular metabolic networks to inform cellular engineering. Here, we present some of the first metabolomic data of the industrial cellulolytic actinomycete Thermobifida fusca generated using LC-MS/MS...
November 11, 2017: Metabolites
https://www.readbyqxmd.com/read/29136389/factors-that-influence-fda-decisions-for-postmarketing-requirements-and-commitments-during-review-of-oncology-products
#13
Atsushi Hyogo, Masayuki Kaneko, Mamoru Narukawa
PURPOSE: With the recent use of expedited drug development and approval programs for several oncology products in the United States, the importance of postmarketing plans to confirm clinical benefits and safety is increasing. To discuss postmarketing requirements (PMRs) and postmarketing commitments (PMCs) required for oncology products approved in the United States, we investigated the factors that influenced the US Food and Drug Administration (FDA) decisions for PMR/PMCs during FDA review...
November 14, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29135565/pediatric-and-adolescent-anterior-shoulder-instability-clinical-management-of-first-time-dislocators
#14
Kenneth M Lin, Evan W James, Elad Spitzer, Peter D Fabricant
PURPOSE OF REVIEW: The purpose of this review is to discuss the epidemiology, pathoanatomy, diagnosis, and clinical management of pediatric and adolescent patients following a first-time shoulder dislocation. RECENT FINDINGS: Shoulder instability is becoming increasingly common as pediatric and adolescent patients engage in earlier organized sports competition. Recommended treatment following a first-time glenohumeral dislocation event in adolescents depends on several factors, but surgical stabilization is becoming more frequently performed...
November 11, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/29134038/the-use-of-low-cost-compact-cameras-with-focus-stacking-functionality-in-entomological-digitization-projects
#15
Jan E J Mertens, Martijn Van Roie, Jonas Merckx, Wouter Dekoninck
Digitization of specimen collections has become a key priority of many natural history museums. The camera systems built for this purpose are expensive, providing a barrier in institutes with limited funding, and therefore hampering progress. An assessment is made on whether a low cost compact camera with image stacking functionality can help expedite the digitization process in large museums or provide smaller institutes and amateur entomologists with the means to digitize their collections. Images of a professional setup were compared with the Olympus Stylus TG-4 Tough, a low-cost compact camera with internal focus stacking functions...
2017: ZooKeys
https://www.readbyqxmd.com/read/29132064/patients-and-caregivers-contributions-for-differentiating-epileptic-from-psychogenic-nonepileptic-seizures-value-and-limitations-of-self-reporting-questionnaires-a-pilot-study
#16
Giuseppe Erba, Elisa Bianchi, Giorgia Giussani, John Langfitt, Adam Juersivich, Ettore Beghi
PURPOSE: Questionnaires investigating semiology and comorbidities of psychogenic non-epileptic seizures (PNES) have been used mainly to help physicians expedite referrals to epilepsy centres for confirmation of diagnosis rather than as alternative diagnostic tool when video-EEG monitoring (VEM), the current gold standard, is not available or is inconclusive. METHODS: We developed one structured questionnaire for patients, exploring subjective experiences and vulnerabilities and one for eyewitnesses, focused on features observable during typical events to study prospectively 50 consecutive adult patients with PNES or epileptic seizures (ES) admitted for VEM...
November 8, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29131112/spurious-hyperchloremia-in-the-presence-of-elevated-plasma-salicylate-a-cohort-study
#17
Kianoush B Kashani, Jon H Steuernagle Iv, Qi Qian
BACKGROUND: Acute metabolic acidosis is rarely associated with a reduced or negative anion gap (AG), but several case reports have described such an abnormality occurring in the setting of acute salicylate intoxication. The underlying cause of this phenomenon is unclear. METHODS: In this retrospective cohort study, we reviewed our institutional database to identify all patients admitted for salicylate intoxication at Mayo Clinic (Rochester, MN, USA) from January 2010 through December 2012...
November 9, 2017: Nephron
https://www.readbyqxmd.com/read/29130497/ubc-nepal-expedition-acclimatization-to-high-altitude-increases-spinal-motoneurone-excitability-during-fatigue-in-humans
#18
Luca Ruggiero, Alexandra F Yacyshyn, Jane Nettleton, Chris J McNeil
The fatigue-induced failure of the motor cortex to drive muscles maximally increases in acute hypoxia (AH) compared to normoxia (N) but improves with acclimatization (chronic hypoxia; CH). Despite their importance to muscle output, it is unknown how locomotor motoneurones in humans are affected by hypoxia and acclimatization. Eleven participants performed 16 min of submaximal (25% maximal torque, MVC) intermittent isometric elbow flexions in N, AH (environmental chamber), and CH (7-14 days at 5050 m) (PI O2 =  140, 74, and 76 mmHg, respectively)...
November 11, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29130378/the-experiences-of-patients-with-advanced-cancer-and-caregivers-presenting-to-emergency-departments-a-qualitative-study
#19
Jennifer Philip, Cheryl Remedios, Sibilah Breen, Tracey Weiland, Lisa Willenberg, Mark Boughey, George Jelinek, Heather Lane, Claudia Marck, Jennifer Weil
BACKGROUND: Despite being a common event in the course of an advanced cancer illness, there is little understanding of patients' perceptions of hospital Emergency Department presentations. AIM: To explore the experiences and perceptions of Emergency Departments held by patients with advanced cancer and their informal caregivers. DESIGN: Cross-sectional study involving semi-structured interviews with advanced cancer patients and their informal caregivers...
October 1, 2017: Palliative Medicine
https://www.readbyqxmd.com/read/29130353/for-the-greater-credibility-jesuit-science-and-education-in-modern-portugal-1858-1910
#20
Francisco Malta Romeiras
Upon the restoration of the Society of Jesus in Portugal in 1858, the Jesuits founded two important colleges that made significant efforts in the promotion of hands-on experimental teaching of the natural sciences. At the Colégio de Campolide (Lisbon, 1858-1910) and the Colégio de São Fiel (Louriçal do Campo, 1863-1910) the Jesuits created modern chemistry and physics laboratories, organized significant botanical, zoological and geological collections, promoted scientific expeditions with their students to observe eclipses and to collect novel species of animals and plants, and engaged in original research work in physics, botany, and zoology...
November 1, 2017: History of Science; An Annual Review of Literature, Research and Teaching
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