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https://www.readbyqxmd.com/read/28429509/co2-permeability-and-carbonic-anhydrase-activity-of-rat-cardiomyocytes
#1
Mariela Arias-Hidalgo, Samer Al-Samir, Natalie Weber, Cornelia Geers-Knörr, Gerolf Gros, Volker Endeward
AIM: We determine here the CO2 permeability (PCO2 ) of plasma membranes of cardiomyocytes. These cells were chosen because heart possesses the highest rate of O2 -consumption/CO2 -production in the body. METHODS: Cardiomyocytes were isolated from rat hearts using the Langendorff technique. Cardiomyocyte suspensions exhibited a vitality of 2-14% and were studied by the previously described mass spectrometric (18) O-exchange-technique deriving PCO2 . We show by mass spectrometry and by carbonic anhydrase (CA)-staining that non-vital cardiomyocytes are free of CA and thus do not contribute to the mass spectrometric signal, which is determined exclusively by the fully functional vital cardiomyocytes...
April 20, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28424534/corneal-flap-thickness-with-the-moria-m2-single-use-head-90-microkeratome-in-72-consecutive-lasik-procedures
#2
Yunus Karabela, Orkun Muftuoglu, Faruk Kaya
PURPOSE: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. METHODS: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28421698/historical-harvests-reduce-neighboring-old-growth-basal-area-across-a-forest-landscape
#3
David M Bell, Thomas A Spies, Robert Pabst
While advances in remote sensing have made stand, landscape, and regional assessments of the direct impacts of disturbance on forests quite common, the edge influence of timber harvesting on the structure of neighboring unharvested forests has not been examined extensively. In this study, we examine the impact of historical timber harvests on basal area patterns of neighboring old-growth forests to assess the magnitude and scale of harvest edge influence in a forest landscape of western Oregon, USA. We used lidar data and forest plot measurements to construct 30-m resolution live tree basal area maps in lower and middle elevation mature and old-growth forests...
April 19, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28421631/subclinical-lower-airways-correlates-of-chronic-allergic-and-non-allergic-rhinitis
#4
Ricardo J Saranz, Alejandro Lozano, Natalia A Lozano, Marina F Ponzio, Álvaro A Cruz
The upper and lower airways behave as a physiological and pathophysiological unit. Subclinical lower airways abnormalities have been described in patients with rhinitis without asthma. These are expressed as bronchial hyperreactivity, abnormalities in lung function and bronchial inflammation, likely as a result of the same phenomenon with systemic inflammatory impact that reaches both the nose and the lungs, which for unknown reasons does not always have a full clinical expression. Patients with rhinitis are at increased risk of developing asthma; therefore most authors suggest a careful clinical evaluation and monitoring of these patients, especially if symptoms related to inflammation in the lower airways are observed...
April 19, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28414092/numbers-and-functional-lateralization-a-visual-half-field-and-dichotic-listening-study-in-proficient-bilinguals
#5
Michal Klichowski, Gregory Króliczak
Potential links between language and numbers and the laterality of symbolic number representations in the brain are still debated. Furthermore, reports on bilingual individuals indicate that the language-number interrelationships might be quite complex. Therefore, we carried out a visual half-field (VHF) and dichotic listening (DL) study with action words and different forms of symbolic numbers used as stimuli to test the laterality of word and number processing in single-, dual-language and mixed -task and language- contexts...
April 14, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28407756/alpha-fetoprotein-elevation-in-nut-midline-carcinoma-a-case-report
#6
Lorenzo D'Ambrosio, Erica Palesandro, Marina Moretti, Giuseppe Pelosi, Alessandra Fabbri, Fabrizio Carnevale Schianca, Massimo Aglietta, Giovanni Grignani
BACKGROUND: Nuclear protein in testis (NUT) midline carcinoma is a rarely diagnosed and potentially under-recognized type of squamous carcinoma that is considered one of the most aggressive human solid tumors. Alpha-fetoprotein elevation has been associated with chronic liver diseases and a limited number of cancers. In particular, in presence of a mediastinal mass in a young man, alpha-fetoprotein elevation is considered nearly pathognomonic of a non-seminoma germ-cell tumor. CASE PRESENTATION: A 22-year old man without any comorbidity was diagnosed with a large mediastinal mass with skeletal and lymph node metastases...
April 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28401564/a-double-blind-randomized-placebo-controlled-trial-of-oral-naltrexone-for-heavy-drinking-smokers-seeking-smoking-cessation-treatment
#7
Christopher W Kahler, Patricia A Cioe, Golfo K Tzilos, Nichea S Spillane, Lorenzo Leggio, Susan E Ramsey, Richard A Brown, Stephanie S O'Malley
BACKGROUND: Post hoc analyses of two randomized controlled trials suggest naltrexone may reduce alcohol use and improve smoking cessation outcomes among heavy drinkers receiving smoking cessation treatment. However, no studies have been conducted specifically to examine naltrexone for this purpose or to test whether naltrexone has benefit when added to smoking cessation counseling that explicitly addresses heavy drinking. METHODS: We recruited heavy drinking smokers from the community and randomized them to receive 10 weeks of either (a) 50 mg naltrexone [n = 75] or (b) placebo [n = 75] daily...
April 12, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28400661/intraoperative-measurement-of-limb-lengthening-during-total-hip-arthroplasty
#8
Dimitrios Vasileiou Papadopoulos, Panagiotis Koulouvaris, Georgios Charalambos Aggelidakis, Andreas Georgios Tsantes, Marios Georgios Lykissas, Alexandros Mavrodontidis
BACKGROUND: Limb length discrepancy (LLD) after total hip arthroplasty (THA) is a common problem which cannot be completely resolved. Many techniques have been described in order to minimize postoperative LLD, but most of these techniques are difficult to apply. Ideal technique must be simple and accurate. The most simple technique using a suture tied on the skin has well-known limitations, but its accuracy has not been evaluated before. MATERIALS AND METHODS: Sixty THAs in sixty patients (mean age 71 years, 1:1 male to female ratio) with hip osteoarthritis (37 cases in the right, and 23 cases in the left side) were studied in this prospective study...
March 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28397969/aim2-inflammasome-is-associated-to-disease-severity-in-tegumentary-leishmaniasis-caused-by-leishmania-v-braziliensis
#9
Regina Barbosa Moreira, Claude Pirmez, Manoel Paes De Oliveira-Neto, Luana De Souza Aguiar, Antonio José Da Silva Gonçalves, Luiza Oliveira Ramos Pereira, Lais Abreu, Márcia Pereira De Oliveira
The inflammasome is a multiprotein signaling platform involved in the pathogenesis of various inflammatory skin diseases. Herein, we investigated gene and protein expression of the inflammasome molecules AIM2 and NLRP3 in active lesions from patients with L. (V.) braziliensis-associated tegumentary leishmaniasis (TL) and correlated these findings with the clinical presentations and responses to therapy. Real-time PCR assays showed a significantly higher AIM2 gene expression in mucosal leishmaniasis (ML) compared with that in cutanoeus leishmaniasis (CL)...
April 11, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28393445/density-functional-theory-not-quite-the-right-answer-for-the-right-reason-yet
#10
Martin Korth
More insight or only more parameters? A recent claim that the development of new density functional theory (DFT) functionals is straying from the right path has sparked a lively discussion among theoretical chemists about the future of DFT.
April 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28382766/patients-and-families%C3%A2-realizing%C3%A2-their-future-with-chronic-obstructive-pulmonary-disease-a-qualitative-study
#11
Gudrun H Bragadottir, Bryndis S Halldorsdottir, T Soley Ingadottir, Helga Jonsdottir
AIMS AND OBJECTIVES: To gain insight into the lived experience of learning about having Chronic Obstructive Pulmonary Disease (COPD) for patients and their families. BACKGROUND: COPD often progresses for years. Adjustment to declining health is gradual and the disease may have developed considerably when health care is sought and people are diagnosed. Reaching patients at early stages is necessary to delay progression of the disease. DESIGN: Interpretive phenomenology...
April 5, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28380698/myoclonus-epilepsy-and-ataxia-due-to-kcnc1-mutation-analysis-of-20-cases-and-k-channel-properties
#12
Karen L Oliver, Silvana Franceschetti, Carol J Milligan, Mikko Muona, Simone A Mandelstam, Laura Canafoglia, Anna M Boguszewska-Chachulska, Amos Korczyn, Francesca Bisulli, Carlo Di Bonaventura, Francesca Ragona, Roberto Michelucci, Bruria Ben-Zeev, Rachel Straussberg, Ferruccio Panzica, João Massano, Daniel Friedman, Arielle Crespel, Bernt A Engelsen, Frederick Andermann, Eva Andermann, Krystyna Spodar, Anetta Lasek-Bal, Patrizia Riguzzi, Elena Pasini, Paolo Tinuper, Laura Licchetta, Elena Gardella, Matthias Lindenau, Annette Wulf, Rikke S Møller, Felix Benninger, Zaid Afawi, Guido Rubboli, Christopher A Reid, Snezana Maljevic, Holger Lerche, Anna-Elina Lehesjoki, Steven Petrou, Samuel F Berkovic
OBJECTIVE: To comprehensively describe the new syndrome of myoclonus epilepsy and ataxia due to potassium (K(+) ) channel mutation (MEAK), including cellular electrophysiological characterization of observed clinical improvement with fever. METHODS: We analysed clinical, electroclinical and neuroimaging data for twenty patients with MEAK due to recurrent KCNC1 p.R320H mutation. In vitro electrophysiological studies were conducted using whole cell patch clamp to explore biophysical properties of wild-type and mutant KV 3...
April 5, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28376263/cleaning-service-gaps-in-bermuda-north-atlantic
#13
Cameron A J Walsh, Hudson T Pinheiro, Luiz A Rocha, Gretchen Goodbody-Gringley
Although cleaner fish are essential to the health of reef fish communities (Limbaugh 1961), the nature of cleaner-client relationships have proven to be quite complex (Côté 2000, Vaughn et al. 2016). In reef fish communities, cleaner species are classified into two categories: dedicated (recently suggested to replace the term obligate) and facultative (Vaughn et al. 2016). Dedicated cleaners acquire most of their food from cleaning client fishes, while facultative cleaners usually do not depend on cleaning for food...
April 4, 2017: Ecology
https://www.readbyqxmd.com/read/28365610/stereoscopy-in-dental-education-an-investigation
#14
Shumei Murakami, Rinus G Verdonschot, Sven Kreiborg, Naoya Kakimoto, Asuka Kawaguchi
The aim of this study was to investigate whether stereoscopy can play a meaningful role in dental education. The study used an anaglyph technique in which two images were presented separately to the left and right eyes (using red/cyan filters), which, combined in the brain, give enhanced depth perception. A positional judgment task was performed to assess whether the use of stereoscopy would enhance depth perception among dental students at Osaka University in Japan. Subsequently, the optimum angle was evaluated to obtain maximum ability to discriminate among complex anatomical structures...
April 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28337827/prostaglandin-f2%C3%AE-induced-luteolysis-involves-activation-of-signal-transducer-and-activator-of-transcription-3-and-inhibition-of-akt-signaling-in-cattle
#15
Monique Tomazele Rovani, Gustavo Freitas Ilha, Bernardo Garziera Gasperin, Jandui Nóbrega, Dayananda Siddappa, Werner Glanzner, Alfredo Quites Antoniazzi, Vilceu Bordignon, Raj Duggavathi, Paulo Bayard Dias Gonçalves
Prostaglandin F2α (PGF) induces the precipitous loss of steroidogenic capabilities and cellular death in the corpus luteum of many species, yet the molecular mechanisms underlying this event are not completely understood. Signal transducer and activator of transcription 3 (STAT3) was activated in granulosa cells during follicle atresia, whereas AKT is immediately downregulated in the corpus luteum after PGF treatment in cattle; however, their involvement in both functional and morphological luteolysis in monovular species still need to be determined...
March 24, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28290290/mucus-interactions-with-liposomes-encapsulating-bioactives-interfacial-tensiometry-and-cellular-uptake-on-caco-2-and-cocultures-of-caco-2-ht29-mtx
#16
Yang Li, Elena Arranz, Anilda Guri, Milena Corredig
Structuring of delivery matrices in foods aquires careful designing for optimal delivery and subsiquent absorption of the beneficial compounds in the gut. There has been quite improvement in mimicking digestion and absorption in vitro but as of yet little is understood on mucus interference in nutrient absorption Therefore in this study interactions of human intestinal mucus with milk and soy phospholipids liposomes carring hydrophilic (epigallocatechin-3-gallate) or hydrophobic (β-carotene) bioactive molecules were investigated...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28279513/cisterna-magna-meningiomas-without-dural-attachment-report-of-two-cases
#17
Masaaki Kohta, Takashi Sasayama, Tomoaki Nakai, Masaaki Taniguchi, Hiroaki Nagashima, Kazuhiro Tanaka, Katsu Mizukawa, Tomoo Itoh, Eiji Kohmura
Meningiomas within the cisterna magna without dural attachment are extremely rare. To the best of our knowledge, only three cases of meningiomas within the cisterna magna have been reported in the literature. The authors present two cases of patient with the cisterna magna meningioma without dural attachment. (Case 1) A 36-year-old female presented with a 10-month history of numbness in the left hand. Magnetic resonance imaging (MRI) disclosed the presence of a contrast-enhanced tumor in the posterior fossa...
March 2, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28275627/inappropriateness-in-laboratory-medicine-an-elephant-in-the-room
#18
Giuseppe Lippi, Chiara Bovo, Marcello Ciaccio
Appropriateness of diagnostic testing can be conventionally described as prescription of the right test, using the right method, at the right time, to the right patient, with the right costs and for producing the right outcome. There is ongoing debate about the real burden of inappropriateness in laboratory diagnostics. The media coverage of this issue has also recently led to either over- or under-emphasizing the clinical, organizational and economic consequences. This is quite problematic, inasmuch as some reliable data are available in the current scientific literature, showing that inappropriateness of laboratory testing can be as high as 70%...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28257420/effectiveness-of-a-neuropsychological-treatment-for-confabulations-after-brain-injury-a-clinical-trial-with-theoretical-implications
#19
Mónica Triviño, Estrella Ródenas, Juan Lupiáñez, Marisa Arnedo
Confabulators consistently generate false memories without intention to deceive and with great feelings of rightness. However, to our knowledge, there is currently no known effective treatment for them. In order to fill this gap, our aim was to design a neuropsychological treatment based on current theoretical models and test it experimentally in 20 confabulators sequentially allocated to two groups: an experimental and a control group. The experimental group received nine sessions of treatment for three weeks (three sessions per week)...
2017: PloS One
https://www.readbyqxmd.com/read/28235422/crying-spells-triggered-by-thumb-index-rubbing-after-thalamic-stroke-a-case-report
#20
R Bassani, C Rosazza, L Ghirardin, V Caldiera, E Banco, C Casati, L Tesio
BACKGROUND: Pathologic crying, devoid of any emotional counterpart, is known to occur as a consequence of various brain stem, cortical hemispheric and cerebellar lesions or, quite exceptionally, of "dacrystic" epilepsy. The case reported here suggests that thalamic lesions may also cause crying spells, under the special circumstances described below. CASE PRESENTATION: After a mild left thalamic stroke a caucasian 77 years old man presented with crying spells with no emotional counterpart, triggered by thumb-index rubbing of his right hand...
February 24, 2017: BMC Research Notes
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