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https://www.readbyqxmd.com/read/28103235/real-time-multiplicative-memory-amplification-mediated-by-whole-cell-scaling-of-synaptic-response-in-key-neurons
#1
Iris Reuveni, Sourav Ghosh, Edi Barkai
Intense spiking response of a memory-pattern is believed to play a crucial role both in normal learning and pathology, where it can create biased behavior. We recently proposed a novel model for memory amplification where the simultaneous two-fold increase of all excitatory (AMPAR-mediated) and inhibitory (GABAAR-mediated) synapses in a sub-group of cells that constitutes a memory-pattern selectively amplifies this memory. Here we confirm the cellular basis of this model by validating its major predictions in four sets of experiments, and demonstrate its induction via a whole-cell transduction mechanism...
January 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28102574/fidgety-movements-in-infants-born-very-preterm-predictive-value-for-cerebral-palsy-in-a-clinical-multicentre-setting
#2
Alexandre N Datta, Mark A Furrer, Iris Bernhardt, Petra S Hüppi, Cristina Borradori-Tolsa, Hans Ulrich Bucher, Beatrice Latal, Sebastian Grunt, Giancarlo Natalucci
AIM: This study assessed predictive values of fidgety movement assessment (FMA) in a large sample of infants born very preterm for developmental abnormalities, in particular for cerebral palsy (CP) at 2 years in an everyday clinical setting. METHOD: This is a multicentre study of infants born preterm with gestational age lower than 32.0 weeks. FMA was performed at 3 months corrected age; neurodevelopment (Bayley Scales of Infant Development, 2nd edition) and neurological abnormalities were assessed at 2 years...
January 19, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28102536/evaluation-of-iris-functional-capillary-density-in-experimental-local-and-systemic-inflammation
#3
N Arora, S Islam, K Wafa, J Zhou, J T Toguri, V Cerny, C Lehmann
The ocular microcirculation represents an important target to treat inflammatory diseases of eye, where impairment of microvascular blood flow plays key role as, for example, in anterior uveitis. To evaluate novel interventions targeting the microcirculation, appropriate and reliable tools to study this particular microvascular bed are needed. Intravital microscopy (IVM) belongs to several methods allowing evaluation of microcirculation experimentally, even in small animals. The aim of our study was to examine the iridial microcirculation (IMIC) in uveitis induced by local or systemic endotoxin administration in rats and mice by IVM and to propose new parameters to quantify the changes within the IMIC...
January 19, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28102354/a-signature-of-renal-stress-resistance-induced-by-short-term-dietary-restriction-fasting-and-protein-restriction
#4
F Jongbloed, T C Saat, M Verweij, C Payan-Gomez, J H J Hoeijmakers, S van den Engel, C T van Oostrom, G Ambagtsheer, S Imholz, J L A Pennings, H van Steeg, J N M IJzermans, M E T Dollé, R W F de Bruin
During kidney transplantation, ischemia-reperfusion injury (IRI) induces oxidative stress. Short-term preoperative 30% dietary restriction (DR) and 3-day fasting protect against renal IRI. We investigated the contribution of macronutrients to this protection on both phenotypical and transcriptional levels. Male C57BL/6 mice were fed control food ad libitum, underwent two weeks of 30%DR, 3-day fasting, or received a protein-, carbohydrate- or fat-free diet for various periods of time. After completion of each diet, renal gene expression was investigated using microarrays...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101812/cognitive-and-emotional-demands-of-black-humour-processing-the-role-of-intelligence-aggressiveness-and-mood
#5
Ulrike Willinger, Andreas Hergovich, Michaela Schmoeger, Matthias Deckert, Susanne Stoettner, Iris Bunda, Andrea Witting, Melanie Seidler, Reinhilde Moser, Stefanie Kacena, David Jaeckle, Benjamin Loader, Christian Mueller, Eduard Auff
Humour processing is a complex information-processing task that is dependent on cognitive and emotional aspects which presumably influence frame-shifting and conceptual blending, mental operations that underlie humour processing. The aim of the current study was to find distinctive groups of subjects with respect to black humour processing, intellectual capacities, mood disturbance and aggressiveness. A total of 156 adults rated black humour cartoons and conducted measurements of verbal and nonverbal intelligence, mood disturbance and aggressiveness...
January 18, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28101669/outcomes-and-trends-of-peripartum-maternal-admission-to-the-intensive-care-unit
#6
Alex Farr, Agnes Lenz-Gebhart, Sabrina Einig, Clemens Ortner, Iris Holzer, Marie Elhenicky, Peter W Husslein, Rainer Lehner
BACKGROUND: The number of pregnant women with severe comorbidities is increasing. The aim of the present study was to analyze outcomes and determine trends in women who required peripartum admission to the intensive care unit (ICU). METHODS: In this retrospective study, we identified all women who were admitted to the ICU between the second trimester of pregnancy and 6 weeks postpartum. Women with ICU admission between 2011 and 2014 were assigned to the study group, whereas those admitted between 1996 and 2003 were assigned to the historical group...
January 18, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28101117/maternal-mortality-ratio-and-causes-of-death-in-iri-between-2009-and-2012
#7
Marzieh Vahiddastjerdy, Nasrin Changizi, Abas Habibollahi, Leila Janani, Zahra Farahani, Farah Babaee
Objective: The Maternal Mortality Ratio is an important health indicator. We presented the distribution and causes of maternal mortality in Islamic Republic of Iran. Materials and methods: After provision of an electronic Registry system for date entry, a descriptive-retrospective data collection had been performed for all maternal Deaths in March 2009- March 2012. All maternal deaths and their demographic characteristic were identified by using medical registries, death certificates, and relevant codes according to International Classification of Diseases (ICD-9) during pregnancy, labor, and 42 days after parturition...
September 2016: Journal of Family & Reproductive Health
https://www.readbyqxmd.com/read/28100903/rhodoccocus-equi-pneumonia-and-paradoxical-immune-reconstitution-inflammatory-syndrome-in-a-patient-with-acquired-immune-deficiency-syndrome-aids
#8
Ritika Zijoo, Ahmed Dirweesh, Nigahus Karabulut
BACKGROUND Pulmonary infections are a major cause of mortality and morbidity in patients infected with human immunodeficiency virus (HIV) and can progress rapidly to respiratory failure and death without appropriate therapy. Herein, we present a rare case of an advanced HIV infection and Rhodoccocus equi (R. equi) pneumonia in a young male who had severe paradoxical immune reconstitution inflammatory syndrome (IRIS). CASE REPORT A 47-year-old nonsmoking Hispanic man with advanced HIV infection presented with severe acute necrotizing pneumonia secondary to R...
January 19, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28100579/acute-mania-after-levothyroxine-replacement-for-hypothyroid-induced-heart-block
#9
Marc Gregory Yu, Karen Marie Flores, Iris Thiele Isip-Tan
Psychiatric disturbances can manifest after levothyroxine (LT4) treatment for severe hypothyroidism. We present the case of a young Filipino man with Hashimoto's thyroiditis and high-grade heart block, who was given a full replacement LT4 dose on admission. Twenty-four hours after this dose, he developed manic symptoms, which were addressed with sedatives and neuroleptics with gradual restoration of euthymia the following day. A comprehensive workup did not reveal any findings suggestive of another aetiology for either mania or heart block...
January 18, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28099195/systolic-peak-foot-to-apex-time-interval-a-novel-oscillometric-technique-for-systolic-blood-pressure-measurement
#10
Amir M Benmira, Antonia Perez-Martin, Sarah Coudray, Iris Schuster, Isabelle Aichoun, Jérémy Laurent, Fethi Bereski-Reguig, Michel Dauzat
BACKGROUND: Noninvasive blood pressure (BP) measurement is essential for the study of human physiology but automatic oscillometric devices only estimate SBP and DBP using various, undisclosed algorithms, precluding standardization and interchangeability. We propose a novel approach by tracking, during pneumatic cuff deflation, the time interval from the foot to the apex of the systolic peak of the oscillometric signal, which reaches a maximum concomitant with the first Korotkoff sound...
January 17, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28098768/preventive-effects-of-drinking-hydrogen-rich-water-on-gingival-oxidative-stress-and-alveolar-bone-resorption-in-rats-fed-a-high-fat-diet
#11
Toshiki Yoneda, Takaaki Tomofuji, Muneyoshi Kunitomo, Daisuke Ekuni, Koichiro Irie, Tetsuji Azuma, Tatsuya Machida, Hisataka Miyai, Kouhei Fujimori, Manabu Morita
Obesity induces gingival oxidative stress, which is involved in the progression of alveolar bone resorption. The antioxidant effect of hydrogen-rich water may attenuate gingival oxidative stress and prevent alveolar bone resorption in cases of obesity. We examined whether hydrogen-rich water could suppress gingival oxidative stress and alveolar bone resorption in obese rats fed a high-fat diet. Male Fischer 344 rats (n = 18) were divided into three groups of six rats each: a control group (fed a regular diet and drinking distilled water) and two experimental groups (fed a high-fat diet and drinking distilled water or hydrogen-rich water)...
January 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28098727/persistent-overproduction-of-intraocular-vascular-endothelial-growth-factor-as-a-cause-of-late-vitreous-hemorrhage-after-vitrectomy-for-proliferative-diabetic-retinopathy
#12
Yoshihiro Wakabayashi, Yoshihiko Usui, Kinya Tsubota, Shunichiro Ueda, Kazuhiko Umazume, Daisuke Muramatsu, Hiroshi Goto
PURPOSE: The purpose of this study was to investigate whether vitreous levels of vascular endothelial growth factor (VEGF) predict late vitreous hemorrhage (VH) after vitrectomy for proliferative diabetic retinopathy, and how VEGF level changes in patients with postoperative late VH. METHODS: Eighty-five eyes of 68 patients with proliferative diabetic retinopathy who underwent vitrectomy were analyzed retrospectively. Vitreous samples were collected from eyes undergoing primary vitrectomy and from eyes with late VH undergoing second vitrectomy...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098616/in-reply
#13
Seyed A Safavynia, Glenda Keating, Iris Speigel, Jonathan A Fidler, Matthias Kreuzer, David B Rye, Andrew Jenkins, Paul S García
No abstract text is available yet for this article.
February 2017: Anesthesiology
https://www.readbyqxmd.com/read/28098445/circular-and-chainlike-copper-ii-lanthanide-iii-complexes-generated-by-assembly-reactions-of-racemic-and-chiral-copper-ii-cross-linking-ligand-complexes-with-ln-iii-no3-3%C3%A2-6h2o-ln-iii-gd-iii-tb-iii-dy-iii
#14
Takahiro Ueno, Takeshi Fujinami, Naohide Matsumoto, Masaki Furusawa, Ryo Irie, Nazzareno Re, Takuya Kanetomo, Takayuki Ishida, Yukinari Sunatsuki
The 1:1 assembly reaction of the racemic form of the cross-linking ligand complex Na[Cu(II)L(dpen(1R2R/1S2S))] with Ln(III)(NO3)3·6H2O gave the centrosymmetric circular (Cu(II)Ln(III))2 complex [Cu(II)L(dpen(1R2R/1S2S))Ln(III)(NO3)2]2 (1Ln: Ln = Gd, Tb, Dy), while the reaction of the enantiopure form Na[Cu(II)L(dpen(1R2R))] with Ln(III)(NO3)3·6H2O gave the chiral chainlike (Cu(II)Ln(III))1∞ complex [Cu(II)L(dpen(1R2R))Ln(III)(NO3)2(CH3CN)]1∞·CH3CN (2Ln: Ln = Gd, Tb, Dy), where {Cu(II)L(dpen(1R2R))}(-) is (N-((1R,2R)-2-(((E)-3-ethoxy-2-oxybenzylidene)amino)-1,2-diphenylethyl)-2-oxybenzamide)copper(II) and {Cu(II)L(dpen(1R2R/1S2S))}(-) is the racemic mixture of {Cu(II)L(dpen(1R2R))}(-) and {Cu(II)L(dpen(1S2S))}(-)...
January 18, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28098418/investigation-of-the-variability-of-anterior-chamber-scan-protocol-with-cirrus-high-definition-optical-coherence-tomography
#15
Tin A Tun, Shayne S Tan, Eray Atalay, Sushma Verma, Monisha E Nongpiur, Mani Baskaran, Tin Aung, Rahat Husain
IMPORTANCE: The evaluation of anterior chamber scan (ACS) of Cirrus optical coherence tomography (OCT) for routine clinical use BACKGROUND: To assess the variability of anterior chamber angle (ACA) measurements using the ACS DESIGN: Cross-sectional observational study PARTICIPANTS: Forty subjects aged 40-80 years METHODS: One randomly selected eye from 40 subjects was imaged with Cirrus OCT (model 5000, Carl Zeiss Meditec, Dublin, CA) by two different operators (expert vs non-expert) with a 15-minute interval for inter- and intra-observer variability of image acquisition...
January 18, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28096378/biosynthesis-of-the-microtubule-destabilizing-diterpene-pseudolaric-acid-b-from-golden-larch-involves-an-unusual-diterpene-synthase
#16
Sibongile Mafu, Prema Sambandaswami Karunanithi, Teresa Ann Palazzo, Bronwyn Lee Harrod, Selina Marakana Rodriguez, Iris Natalie Mollhoff, Terrence Edward O'Brien, Shen Tong, Oliver Fiehn, Dean J Tantillo, Jörg Bohlmann, Philipp Zerbe
The diversity of small molecules formed via plant diterpene metabolism offers a rich source of known and potentially new biopharmaceuticals. Among these, the microtubule-destabilizing activity of pseudolaric acid B (PAB) holds promise for new anticancer agents. PAB is found, perhaps uniquely, in the coniferous tree golden larch (Pseudolarix amabilis, Pxa). Here we describe the discovery and mechanistic analysis of golden larch terpene synthase 8 (PxaTPS8), an unusual diterpene synthase (diTPS) that catalyzes the first committed step in PAB biosynthesis...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095754/3d-co-culture-of-meniscal-cells-and-mesenchymal-stem-cells-in-collagen-type-i-hydrogel-on-a-small-intestinal-matrix-a-pilot-study-towards-equine-meniscus-tissue-engineering
#17
Antje Kremer, Iris Ribitsch, Jenny Reboredo, Julia Dürr, Monika Egerbacher, Florien Jenner, Heike Walles
Meniscal injuries are the most frequently encountered soft tissue injuries in the equine stifle joint. Due to the inherent limited repair potential of meniscal tissue, meniscal injuries do not only affect the meniscus itself but also lead to impaired joint homeostasis and secondary osteoarthritis. The presented study compares 3D co-culture constructs of primary equine mesenchymal stem cells (MSC) and meniscus cells (MC) seeded on three different scaffolds - a cell-laden collagen type I hydrogel (Col I gel), a tissue-derived small intestinal matrix scaffold (SIS-muc) and a combination thereof - for their qualification to be applied for meniscus tissue engineering...
January 18, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28095610/uveal-schwannoma-in-a-brown-eyed-dog
#18
Todd L Marlo, Elizabeth A Giuliano, Cecil P Moore, Gillian C Shaw, Leandro B C Teixeira
An eleven-year-old, female spayed Boxer dog was diagnosed with a uveal schwannoma (formerly known as the spindle cell tumor of the blue-eyed dog or SCTBED) despite having a uniformly brown iris. The patient presented to emergency for ocular discomfort, and the right globe was subsequently enucleated due to glaucoma and submitted for histopathology. Upon histopathologic evaluation, a uveal schwannoma was diagnosed and confirmed with immunohistochemical staining. Complete metastatic evaluation 1 and 6 months after initial presentation did not reveal evidence of metastasis, and the dog remains systemically healthy...
January 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28095520/dental-implants-in-the-elderly-population-a-long-term-follow-up
#19
Sharon M Compton, Danielle Clark, Stephanie Chan, Iris Kuc, Berhanu A Wubie, Liran Levin
PURPOSE: The objectives of this study were to evaluate implant survival and success in the elderly population and to assess indicators and risk factors for success or failure of dental implants in older adults (aged 60 years and older). MATERIALS AND METHODS: This historical prospective study was developed from a cohort of patients born prior to 1950 who received dental implants in a single private dental office. Implant survival and marginal bone levels were recorded and analyzed with regard to different patient- and implant-related factors...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28095396/tenascin-c-and-fibronectin-expression-divide-early-stage-tongue-cancer-into-low-and-high-risk-groups
#20
Elias Sundquist, Joonas H Kauppila, Johanna Veijola, Rayan Mroueh, Petri Lehenkari, Saara Laitinen, Juha Risteli, Ylermi Soini, Veli-Matti Kosma, Iris Sawazaki-Calone, Carolina Carneiro Soares Macedo, Risto Bloigu, Ricardo D Coletta, Tuula Salo
BACKGROUND: Oral tongue squamous cell carcinoma (OTSCC) metastasises early, especially to regional lymph nodes. There is an ongoing debate on which early stage (T1-T2N0) patients should be treated with elective neck dissection. We need prognosticators for early stage tongue cancer. METHODS: Mice immunisation with human mesenchymal stromal cells resulted in production of antibodies against tenascin-C (TNC) and fibronectin (FN), which were used to stain 178 (98 early stage), oral tongue squamous cell carcinoma samples...
January 17, 2017: British Journal of Cancer
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