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https://www.readbyqxmd.com/read/29792291/diurnal-variations-of-depression-related-health-information-seeking-case-study-in-finland-using-google-trends-data
#1
Jonas Christoffer Tana, Jyrki Kettunen, Emil Eirola, Heikki Paakkonen
BACKGROUND: Some of the temporal variations and clock-like rhythms that govern several different health-related behaviors can be traced in near real-time with the help of search engine data. This is especially useful when studying phenomena where little or no traditional data exist. One specific area where traditional data are incomplete is the study of diurnal mood variations, or daily changes in individuals' overall mood state in relation to depression-like symptoms. OBJECTIVE: The objective of this exploratory study was to analyze diurnal variations for interest in depression on the Web to discover hourly patterns of depression interest and help seeking...
May 23, 2018: JMIR Mental Health
https://www.readbyqxmd.com/read/29789078/surface-immobilization-and-shielding-of-a-transaminase-enzyme-for-the-stereoselective-synthesis-of-pharmaceutically-relevant-building-blocks
#2
Ayoub Talbi Alami, Federica Richina, M Rita Correro, Yves Dudal, Patrick Shahgaldian
Transaminases are enzymes capable of stereoselective reductive amination; they are of great interest in the production of chiral building blocks. However, the use of this class of enzymes in industrial processes is often hindered by their limited stability under operational conditions. Herein, we demonstrate that a transaminase enzyme from Aspergillus terreus can be immobilized at the surface of silica nanoparticles and protected in an organosilica shell of controlled thickness. The so-protected enzyme displays a high biocatalytic activity, and additionally provides the possibility to be retained in a reactor system for continuous operation and to be recycled...
May 30, 2018: Chimia
https://www.readbyqxmd.com/read/29787784/heart-rate-variability-response-to-affective-pictures-processed-in-and-outside-of-conscious-awareness-three-consecutive-studies-on-emotional-regulation
#3
Necati Serkut Bulut, Axel Würz, Neşe Yorguner Küpeli, Gresa Çarkaxhıu Bulut, Mehmet Zihni Sungur
Previous research has increased understanding of the neurobiological basis of emotional regulation. However, less is known concerning the unconscious processing of affective information. Three experiments were performed to investigate the extent to which complex affective stimuli can be processed outside of consciousness and demonstrate possible mechanisms for regulation of resulting emotional responses. In Experiment 1, participants were either instructed to passively observe blocked-picture cues (neutral and negative) or to downregulate their emotions by distancing...
May 19, 2018: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29786830/blue-light-filtering-intraocular-lenses-iols-for-protecting-macular-health
#4
REVIEW
Laura E Downie, Ljoudmila Busija, Peter R Keller
BACKGROUND: An intraocular lens (IOL) is a synthetic lens that is surgically implanted within the eye following removal of the crystalline lens, during cataract surgery. While all modern IOLs attenuate the transmission of ultra-violet (UV) light, some IOLs, called blue-blocking or blue-light filtering IOLs, also reduce short-wavelength visible light transmission. The rationale for blue-light filtering IOLs derives primarily from cell culture and animal studies, which suggest that short-wavelength visible light can induce retinal photoxicity...
May 22, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29784431/-continuous-quadratus-lumborum-type-ii-block-in-partial-nephrectomy
#5
Rita Graça, Pilar Miguelez, José Miguel Cardoso, Miguel Sá, Joana Brandão, Célia Pinheiro, Duarte Machado
BACKGROUND AND OBJECTIVES: Quadratus lumborum block was first described in 2007 and currently there are descriptions of its achievement through four different injection points. This blockage provides abdominal wall and visceral analgesia, and one of its mechanisms is the dispersion of the local anesthetic into the paravertebral space. We describe the performance of a continuous quadratus lumborum type II block for postoperative analgesia in a partial nephrectomy. CASE REPORT: A 64-year-old woman, scheduled for partial left laparoscopic nephrectomy...
May 18, 2018: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29782862/evaluation-of-cardiac-arrhythmic-risks-using-a-rabbit-model-of-left-ventricular-systolic-dysfunction
#6
Bianca Hemmeryckx, Yuanbo Feng, Liesbeth Frederix, Marleen Lox, Sander Trenson, Rob Vreeken, Hua Rong Lu, David Gallacher, Yicheng Ni, H Roger Lijnen
Patients with heart disease have a higher risk to develop cardiac arrhythmias, either spontaneously or drug-induced. In this study, we have used a rabbit model of myocardial infarction (MI) with severe left ventricular systolic dysfunction (LVSD) to study potential drug-induced cardiac risks with N-(piperidin-2-ylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide (flecainide). Upon ligation of the left circumflex arteries, male New Zealand White rabbits developed a large MI and moderate or severe LVSD 7 weeks after surgery, in comparison to SHAM-operated animals...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29781504/epidural-versus-non-epidural-or-no-analgesia-for-pain-management-in-labour
#7
REVIEW
Millicent Anim-Somuah, Rebecca Md Smyth, Allan M Cyna, Anna Cuthbert
BACKGROUND: Epidural analgesia is a central nerve block technique achieved by injection of a local anaesthetic close to the nerves that transmit pain, and is widely used as a form of pain relief in labour. However, there are concerns about unintended adverse effects on the mother and infant. This is an update of an existing Cochrane Review (Epidural versus non-epidural or no analgesia in labour), last published in 2011. OBJECTIVES: To assess the effectiveness and safety of all types of epidural analgesia, including combined-spinal-epidural (CSE) on the mother and the baby, when compared with non-epidural or no pain relief during labour...
May 21, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29778971/infraclavicular-and-supraclavicular-approaches-to-brachial-plexus-for-ambulatory-elbow-surgery-a-randomized-controlled-observer-blinded-trial
#8
Shalini Dhir, Brigid Brown, Peter Mack, Yves Bureau, Janice Yu, Douglas Ross
STUDY OBJECTIVE: To compare the effectiveness of supraclavicular and infraclavicular approaches to brachial plexus block for elbow surgery. DESIGN: Prospective, parallel arm, observer-blinded, randomized controlled trial. SETTING: This study occurred in a designated block room at St. Joseph's hospital, a large academic tertiary hospital in London, Canada. PATIENTS: 150 adult ASA class I-III patients undergoing elective ambulatory elbow surgery...
May 17, 2018: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/29778339/lower-risk-of-postoperative-arrhythmias-in-congenital-heart-surgery-following-intraoperative-administration-of-magnesium
#9
Dingchao He, Nimisha Aggarwal, David Zurakowski, Richard A Jonas, Charles I Berul, Sridhar Hanumanthaiah, Jeffrey P Moak
OBJECTIVES: Postoperative arrhythmias are common in children undergoing congenital heart surgery. We evaluated whether intraoperative administration of magnesium was associated with a reduced occurrence of specific postoperative arrhythmias, as has been described previously, or had a broader effect on multiple arrhythmia types, and whether there existed a dose-effect of intraoperative magnesium. METHODS: We used a historical prospective observational cohort study...
April 18, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29778163/impacts-of-sodium-hydroxide-and-sodium-hypochlorite-aging-on-polyvinylidene-fluoride-membranes-fabricated-with-different-methods
#10
Qilong Wu, Xihui Zhang, Guodong Cao
This study compared the effects of chemical aging on the polyvinylidene fluoride (PVDF) membranes fabricated with the methods of non-solvent induced phase separation (NIPS) (named NIPS-PVDF) and thermally induced phase separation (TIPS) (named TIPS-PVDF). The chemical solutions of sodium hypochlorite (NaClO) and sodium hydroxide (NaOH) were chosen at the concentration of 5000mg/L. The equivalence of 5 and 10years was respectively selected as the time of aging. The physicochemical evolutions of membrane aging are characterized on the base of morphology analysis, chemical components, permeation ability and mechanical properties...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29771695/scheduling-the-nonoperating-room-anesthesia-suite
#11
Mary E Warner, David P Martin
PURPOSE OF REVIEW: Nonoperating room anesthesia (NORA) and procedural services often are associated with dispersed geographic settings and small volumes of cases. These lead to scheduling challenges that, if not managed well, result in decreased patient and healthcare team satisfaction and reduced efficiency. This review describes recent studies and provides examples on how NORA scheduling issues have been addressed. RECENT FINDINGS: Increased use of blocked time for consolidated NORA services can lead to sufficiently large volumes of cases that allow improved scheduling and maintain patient and healthcare team satisfaction and better efficiency of care...
May 15, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29771311/pathobiology-of-cardiac-dyssynchrony-and-resynchronization-therapy
#12
Uyên Châu Nguyên, Nienke J Verzaal, Frans A van Nieuwenhoven, Kevin Vernooy, Frits W Prinzen
Synchronous ventricular electrical activation is a prerequisite for adequate left ventricular (LV) systolic function. Conduction abnormalities such as left bundle branch block, and ventricular pacing lead to a dyssynchronous electrical activation sequence, which may have deleterious consequences. The present review attempts to connect the various processes involved in the development of 'dyssynchronopathy', and its correction by cardiac resynchronization therapy (CRT). Abnormal electrical impulse conduction leads to abnormal contraction, characterized by regional differences in timing as well as shortening patterns and amount of external work performed...
May 15, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29768039/loss-of-sonic-hedgehog-gene-leads-to-muscle-development-disorder-and-megaesophagus-in-mice
#13
Xueting Jia, Li Min, Shengtao Zhu, Shutian Zhang, Xiaofeng Huang
Sonic hedgehog ( Shh) is crucial for organogenesis in the foregut. This study investigated the function of Shh at the late-gestational stage; during which, the esophagus continues to differentiate. We established cytokeratin 14 ( CK14)-Cre;Shhfl/fl mice in which the down-regulation of Shh in the epithelium occurred at approximately the same time as esophageal muscle conversion. Hematoxylin and eosin and immunohistochemical staining, with antibodies against keratin 14, Shh, patched 1 (Ptch1), Gli1, proliferating cell nuclear antigen (PCNA), α-smooth muscle actin (αSMA), high-molecular-weight caldesmon (hCD), myogenin, paired box 7 (Pax7), β3-tubulin, and protein gene product 9...
May 16, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29766842/continuous-low-dose-antibiotic-prophylaxis-to-prevent-urinary-tract-infection-in-adults-who-perform-clean-intermittent-self-catheterisation-the-antic-rct
#14
Robert Pickard, Thomas Chadwick, Yemi Oluboyede, Catherine Brennand, Alexander von Wilamowitz-Moellendorff, Doreen McClurg, Jennifer Wilkinson, Laura Ternent, Holly Fisher, Katherine Walton, Elaine McColl, Luke Vale, Ruth Wood, Mohamed Abdel-Fattah, Paul Hilton, Mandy Fader, Simon Harrison, James Larcombe, Paul Little, Anthony Timoney, James N'Dow, Heather Armstrong, Nicola Morris, Kerry Walker, Nikesh Thiruchelvam
BACKGROUND: People carrying out clean intermittent self-catheterisation (CISC) to empty their bladder often suffer repeated urinary tract infections (UTIs). Continuous once-daily, low-dose antibiotic treatment (antibiotic prophylaxis) is commonly advised but knowledge of its effectiveness is lacking. OBJECTIVE: To assess the benefit, harms and cost-effectiveness of antibiotic prophylaxis to prevent UTIs in people who perform CISC. DESIGN: Parallel-group, open-label, patient-randomised 12-month trial of allocated intervention with 3-monthly follow-up...
May 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29766539/block-versus-longitudinal-integrated-clerkships-students-views-of-rural-clinical-supervision
#15
Martin Witney, Vivian Isaac, Denese Playford, Leesa Walker, David Garne, Lucie Walters
CONTEXT: Medical students undertaking longitudinal integrated clerkships (LICs) train in multiple disciplines concurrently, compared with students in block rotations who typically address one medical discipline at a time. Current research suggests that LICs afford students increased access to patients and continuity of clinical supervision. However, these factors are less of an issue in rural placements where there are fewer learners. The aim of this study was to compare rural LIC and rural block rotation students' reported experiences of clinical supervision...
May 15, 2018: Medical Education
https://www.readbyqxmd.com/read/29765656/the-rise-and-fall-of-an-ancient-ad%C3%A3-lie-penguin-supercolony-at-cape-adare-antarctica
#16
Steven D Emslie, Ashley McKenzie, William P Patterson
We report new discoveries and radiocarbon dates on active and abandoned Adélie penguin ( Pygoscelis adeliae ) colonies at Cape Adare, Antarctica. This colony, first established at approximately 2000 BP (calendar years before present, i.e. 1950), is currently the largest for this species with approximately 338 000 breeding pairs, most located on low-lying Ridley Beach. We hypothesize that this colony first formed after fast ice began blocking open-water access by breeding penguins to the Scott Coast in the southern Ross Sea during a cooling period also at approximately 2000 BP...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29765474/on-the-design-principles-of-peptide-drug-conjugates-for-targeted-drug-delivery-to-the-malignant-tumor-site
#17
REVIEW
Eirinaios I Vrettos, Gábor Mező, Andreas G Tzakos
Cancer is the second leading cause of death affecting nearly one in two people, and the appearance of new cases is projected to rise by >70% by 2030. To effectively combat the menace of cancer, a variety of strategies have been exploited. Among them, the development of peptide-drug conjugates (PDCs) is considered as an inextricable part of this armamentarium and is continuously explored as a viable approach to target malignant tumors. The general architecture of PDCs consists of three building blocks: the tumor-homing peptide, the cytotoxic agent and the biodegradable connecting linker...
2018: Beilstein Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29764986/phytochrome-b-requires-pif-degradation-and-sequestration-to-induce-light-responses-across-a-wide-range-of-light-conditions
#18
Eunae Park, Yeojae Kim, Giltsu Choi
Phytochrome B (phyB) inhibits the function of phytochrome-interacting factors (PIFs) by inducing their degradation and sequestration, but the relative physiological importance of these two phyB activities is unclear. In an analysis of published Arabidopsis thaliana phyB mutations, we identified a point mutation in the N-terminal half of phyB (phyBG111D) that abolishes its PIF sequestration activity without affecting its PIF degradation activity. We also identified a point mutation in the phyB C-terminal domain, which, when combined with a deletion of the C-terminal end (phyB990G767R), does the opposite; it blocks PIF degradation without affecting PIF sequestration...
May 15, 2018: Plant Cell
https://www.readbyqxmd.com/read/29760580/sinonasal-adenoid-cystic-carcinoma-role-of-on-site-fnac-a-case-report
#19
Santosh Tummidi, Kanchan Kothari, Roshni Patil, Shruti S Singhal, Vyoma Shah
Background: Adenoid cystic carcinoma (ACC), a rare tumor of epithelial cell origin, commonly arises from the major salivary glands. Uncommonly it may be found outside the salivary glands and it's especially rare in the nasal cavity. Case presentation: A 71-year female had complaints of swelling at the base of nose, Fine needle aspiration (FNA) from the swelling revealed features of adenoid cystic carcinoma; cell block & IHC for CD-117 was positive. Conclusions: Sino-nasal ACC (SNACC) continues to pose diagnostic and therapeutic challenges to clinicians...
2018: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29760182/alternating-modulation-of-subthalamic-nucleus-beta-oscillations-during-stepping
#20
Petra Fischer, Chiung Chu Chen, Ya Ju Chang, Chien-Hung Yeh, Alek Pogosyan, Damian M Herz, Binith Cheeran, Alexander L Green, Tipu Z Aziz, Jonathan Hyam, Simon Little, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Harutomo Hasegawa, Michael Samuel, Keyoumars Ashkan, Peter Brown, Huiling Tan
Gait disturbances in Parkinson's disease are commonly refractory to current treatment options and majorly impair patient's quality of life. Auditory cues facilitate gait and prevent motor blocks. We investigated how neural dynamics in the human subthalamic nucleus of Parkinsons's disease patients (14 male, 2 female) vary during stepping and whether rhythmic auditory cues enhance the observed modulation. Oscillations in the beta band were suppressed after ipsilateral heel strikes, when the contralateral foot had to be raised, and re-appeared after contralateral heel strikes, when the contralateral foot rested on the floor...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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