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https://www.readbyqxmd.com/read/28918618/concurrent-oncocytoma-and-two-angiomyolipomas-in-a-diabetic-kidney-a-very-rare-condition
#1
Fariba Abbasi, Ata Abbasi, Mansour Alizadeh, Parisa Modarresi
Angiomyolipoma (AML) and oncocytoma are uncommon benign neoplasms of the kidney which their simultaneous occurrence in the same kidney is extremely rare. This study reports a 60-year-old diabetic woman with the rare simultaneous occurrence of three renal masses. Histologic evaluation revealed two angiomyolipomas and one oncocytoma within the same kidney, in a background of histologic features of diabetic nephropathy. Renal angiomyolipoma and oncocytoma are uncommon neoplasms, and their simultaneous occurrence in the same kidney is extremely rare...
July 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28918613/predicting-time-to-reflux-of-children-with-antenatal-hydronephrosis-a-competing-risks-approach
#2
Maryam Nazemipour, Abdol-Mohammad Kajbafzadeh, Kazem Mohammad, Abbas Rahimi Foroushani, Mahmood Mahmoudi
The aim of this study was describing methodological aspects and applying a trivariate Weibull survival model using the competing risks concept to predict time to occurrence different types of reflux (unilateral (left, right) or bilateral) in children with antenatal hydronephrosis. Data from 333 children in Pediatric Urology Research Center of Children's Hospital Medical Center, affiliated with Tehran University of Medical Sciences was used. The effect of some demographic and clinical factors on child's reflux was studied...
July 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28918606/kinetic-coupling-of-phosphate-release-force-generation-and-rate-limiting-steps-in-the-cross-bridge-cycle
#3
Robert Stehle, Chiara Tesi
A basic goal in muscle research is to understand how the cyclic ATPase activity of cross-bridges is converted into mechanical force. A direct approach to study the chemo-mechanical coupling between Pi release and the force-generating step is provided by the kinetics of force response induced by a rapid change in [Pi]. Classical studies on fibres using caged-Pi discovered that rapid increases in [Pi] induce fast force decays dependent on final [Pi] whose kinetics were interpreted to probe a fast force-generating step prior to Pi release...
September 16, 2017: Journal of Muscle Research and Cell Motility
https://www.readbyqxmd.com/read/28918600/morphology-and-size-of-blood-cells-of-rhinella-arenarum-hensel-1867-as-environmental-health-assessment-in-disturbed-aquatic-ecosystem-from-central-argentina
#4
Zulma Anahí Salinas, Mariana Baraquet, Pablo Raúl Grenat, Adolfo Ludovico Martino, Nancy Edith Salas
Four populations of Rhinella arenarum from aquatic environments with different degrees of disturbance in central Argentina were compared to assess the ability of cytomorphology and cytomorphometry of blood cells as a hematological biomarker. A total of 93 specimens of R. arenarum (adults sexually mature) were captured during the spring. From the analysis of cell, no variations were found in terms of morphology, whereas in nuclear and cell areas and Price-Jones curves, we observed a smaller size in erythrocytes of individuals inhabiting the site most altered, "Villa Dalcar," as well as for leukocytes, lymphocytes, neutrophils, and eosinophils for the same site...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918598/triacsin-c-reduces-lipid-droplet-formation-and-induces-mitochondrial-biogenesis-in-primary-rat-hepatocytes
#5
Carlos R P Dechandt, Felippe H Zuccolotto-Dos-Reis, Bruno G Teodoro, Anna Maria A P Fernandes, Marcos N Eberlin, Isis C Kettelhut, Carlos Curti, Luciane C Alberici
Intracellular long-chain acyl-CoA synthetases (ACSL) activate fatty acids to produce acyl-CoA, which undergoes β-oxidation and participates in the synthesis of esterified lipids such as triacylglycerol (TAG). Imbalances in these metabolic routes are closely associated with the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Triacsin C is one of the few compounds that inhibit TAG accumulation into lipid droplets (LD) by suppressing ACSL activity. Here we report that treatment of primary rat hepatocytes with triacsin C at concentrations lower than the IC50 (4...
September 16, 2017: Journal of Bioenergetics and Biomembranes
https://www.readbyqxmd.com/read/28918583/evidence-for-contrasting-accumulation-pattern-of-cadmium-in-relation-to-other-elements-in-senilia-senilis-and-tagelus-adansoni-from-the-bijag%C3%A3-s-archipelago-guinea-bissau
#6
Teresa Catry, Paula Figueira, Lina Carvalho, Rui Monteiro, Pedro Coelho, Pedro Miguel Lourenço, Paulo Catry, Quintino Tchantchalam, Inês Catry, Maria J Botelho, Eduarda Pereira, José Pedro Granadeiro, Carlos Vale
Shellfish harvesting in intertidal areas is a widespread and economically important activity in many countries across West Africa. However, in some areas, there is virtually no information concerning the levels of contaminants (and other elements related to nutritional aspects) in the harvested species. We collected sediments and several individuals of the West African bloody cockle Senilia senilis and of the razor clam Tagelus adansoni during the dry season of 2015 nearby three islands in the Bijagós archipelago, Guinea-Bissau...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918564/mri-combined-with-pet-ct-of-different-tracers-to-improve-the-accuracy-of-glioma-diagnosis-a-systematic-review-and-meta-analysis
#7
REVIEW
Yihan Yang, Mike Z He, Tao Li, Xuejun Yang
Based on studies focusing on positron emission tomography (PET)-computed tomography (CT) combined with magnetic resonance imaging (MRI) in the diagnosis of glioma, we conducted a systematic review and meta-analysis evaluating the pros and cons and the accuracy of different examinations. PubMed and Cochrane Library were searched. The search was conducted until April 2017. Two reviewers independently conducted the literature search according to the criteria set initially. Based on the exclusion criteria, 15 articles are included in this study...
September 16, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28918541/enzymatic-hydrolysis-of-black-liquor-xylan-by-a-novel-xylose-tolerant-thermostable-%C3%AE-xylosidase-from-a-tropical-strain-of-aureobasidium-pullulans-cbs-135684
#8
Wichanee Bankeeree, Rinji Akada, Pongtharin Lotrakul, Hunsa Punnapayak, Sehanat Prasongsuk
From three cell-associated β-xylosidases produced by Aureobasidium pullulans CBS 135684, the principal enzyme was enriched to apparent homogeneity and found to be active at high temperatures (60-70 °C) over a pH range of 5-9 with a specific activity of 163.3 units (U) mg(-1). The enzyme was thermostable, retaining over 80% of its initial activity after a 12-h incubation at 60 °C, with half-lives of 38, 22, and 10 h at 60, 65, and 70 °C, respectively. Moreover, it was tolerant to xylose inhibition with a K i value of 18 mM...
September 16, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28918536/a-comparative-study-of-inorganic-elements-in-the-blood-of-male-and-female-caspian-pond-turtles-mauremys-caspica-from-the-southern-basin-of-the-caspian-sea
#9
Milad Adel, Adriana A Cortés-Gómez, Maryam Dadar, Hossein Riyahi, Marc Girondot
Due to their bioaccumulation and biomagnification pathways, inorganic elements can accumulate in high-level aquatic organisms in the food web. Then, this species can be used to monitor the quality of the environment. Blood concentration of nine inorganic elements, including possible toxic metals (An, Cu, Mn, Se, As, Ni, Cd, Pb, and Hg), in 20 males and 20 females from eight different locations with high industry and agriculture activities in Iran were evaluated in this work. Additionally, size, sex, condition index, and locations were also included and analyzed...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918534/do-surgical-helmet-systems-affect-intraoperative-wound-contamination-a-randomised-controlled-trial
#10
Otis C Shirley, Ali Bayan, Mark Zhu, James P Dalton, Siouxsie Wiles, Simon W Young
BACKGROUND: Deep infection following arthroplasty remains a devastating complication. Some registry data suggests that modern positive-pressure surgical helmet systems (SHS) are associated with a paradoxical increase in infection rates, and as such their role in arthroplasty remains unclear. The aim of this study was to investigate whether SHS increase wound contamination in total knee arthroplasty (TKA) and if this contamination can be reduced by placing tape around the gown/glove interface...
September 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28918522/simulations-and-experimental-investigations-of-the-competitive-adsorption-of-ch4-and-co2-on-low-rank-coal-vitrinite
#11
Song Yu, Jiang Bo, Li Jiahong
The mechanism for the competitive adsorption of CH4 and CO2 on coal vitrinite (DV-8, maximum vitrinite reflectance R o,max = 0.58%) was revealed through simulation and experimental methods. A saturated state was reached after absorbing 17 CH4 or 22 CO2 molecules per DV-8 molecule. The functional groups (FGs) on the surface of the vitrinite can be ranked in order of decreasing CH4 and CO2 adsorption ability as follows: [-CH3] > [-C=O] > [-C-O-C-] > [-COOH] and [-C-O-C-] > [-C=O] > [-CH3] > [-COOH]...
September 16, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28918506/young-athletes-after-acl-reconstruction-with-quadriceps-strength-asymmetry-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-1%C3%A2-year-later
#12
Matthew P Ithurburn, Alex R Altenburger, Staci Thomas, Timothy E Hewett, Mark V Paterno, Laura C Schmitt
PURPOSE: Quadriceps femoris (QF) strength deficits at return-to-sport (RTS) after ACL reconstruction (ACLR) contribute to decreased knee function at the same time point. However, the impact of QF strength at RTS on longitudinal function has not been examined. The purpose of this study was to test the hypothesis that young athletes after ACLR with QF strength asymmetry at RTS would demonstrate decreased knee-related function and lower proportions of functional recovery at 1 year post-RTS compared to young athletes following ACLR with nearly symmetric QF strength at RTS...
September 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28918504/autism-spectrum-disorders-and-disease-modeling-using-stem-cells
#13
REVIEW
Anita Brito, Fabiele Baldino Russo, Alysson Renato Muotri, Patricia Cristina Baleeiro Beltrão-Braga
Autism spectrum disorders (ASD) represent a variety of disorders characterized as complex lifelong neurodevelopment disabilities, which may affect the ability of communication and socialization, including typical comportments like repetitive and stereotyped behavior. Other comorbidities are usually present, such as echolalia, hypotonia, intellectual disability and difficulties in processing figured speech. Furthermore, some ASD individuals may present certain abilities, such as eidetic memory, outstanding musical or painting talents and special mathematical skills, among others...
September 16, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28918496/recurrent-papillary-craniopharyngioma-with-brafv600e-mutation-treated-with-neoadjuvant-targeted-therapy
#14
Elham Rostami, Petra Witt Nyström, Sylwia Libard, Johan Wikström, Olivera Casar-Borota, Olafur Gudjonsson
Craniopharyngiomas are histologically benign but locally aggressive tumors in the sellar region that may cause devastating neurological and endocrine deficits. They tend to recur following surgery with high morbidity; hence, postoperative radiotherapy is recommended following sub-total resection. BRAFV600E mutation is the principal oncogenic driver in the papillary variant of craniopharyngiomas. Recently, a dramatic tumor reduction has been reported in a patient with BRAFV600E mutated, multiply recurrent papillary craniopharyngioma using a combination therapy of BRAF inhibitor dabrafenib and MEK inhibitor trametinib...
September 16, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28918477/in-vitro-inhibition-of-hiv-1-replication-in-autologous-cd4-t-cells-indicates-viral-containment-by-multifactorial-mechanisms
#15
Ting Tu, Jianbo Zhan, Danlei Mou, Wei Li, Bin Su, Tong Zhang, Tao Li, Ning Li, Hao Wu, Cong Jin, Huabiao Chen
HIV-1-specific cytotoxic T lymphocytes (CTLs) and neutralizing antibodies (NAbs) are present during chronic infection, but the relative contributions of these effector mechanisms to viral containment remain unclear. Here, using an in vitro model involving autologous CD4(+) T cells, primary HIV-1 isolates, HIV-1-specific CTLs, and neutralizing monoclonal antibodies, we show that b12, a potent and broadly neutralizing monoclonal antibody to HIV-1, was able to block viral infection when preincubated with virus prior to infection, but was much less effective than CTLs at limiting virus replication when added to infected cell cultures...
September 15, 2017: Virologica Sinica
https://www.readbyqxmd.com/read/28918463/apoptotic-mechanisms-after-repeated-noise-trauma-in-the-mouse-medial-geniculate-body-and-primary-auditory-cortex
#16
Felix Fröhlich, Arne Ernst, Ira Strübing, Dietmar Basta, Moritz Gröschel
A correlation between noise-induced apoptosis and cell loss has previously been shown after a single noise exposure in the cochlear nucleus, inferior colliculus, medial geniculate body (MGB) and primary auditory cortex (AI). However, repeated noise exposure is the most common situation in humans and a major risk factor for the induction of noise-induced hearing loss (NIHL). The present investigation measured cell death pathways using terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) in the dorsal, medial and ventral MGB (dMGB, mMGB and vMGB) and six layers of the AI (AI-1 to AI-6) in mice (NMRI strain) after a second noise exposure (double-exposure group)...
September 16, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28918435/infant-avoidance-training-alters-cellular-activation-patterns-in-prefronto-limbic-circuits-during-adult-avoidance-learning-ii-cellular-imaging-of-neurons-expressing-the-activity-regulated-cytoskeleton-associated-protein-arc-arg3-1
#17
Nicole Gröger, Anja Mannewitz, Jörg Bock, Susann Becker, Katja Guttmann, Gerd Poeggel, Katharina Braun
Positive and negative feedback learning is essential to optimize behavioral performance. We used the two-way active avoidance (TWA) task as an experimental paradigm for negative feedback learning with the aim to test the hypothesis that neuronal ensembles activate the activity-regulated cytoskeletal (Arc/Arg3.1) protein during different phases of avoidance learning and during retrieval. A variety of studies in humans and other animals revealed that the ability of aversive feedback learning emerges postnatally...
September 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28918419/-about-the-association-between-antipsychotic-medication-and-cardiovascular-morbidity-epidemiology-and-possible-background-mechanisms
#18
Gabor Gaszner, Gabor Barna, Peter Dome
The history of antipsychotics began with the discovery of chlorpromazine in the 1950s. Since then this group of medications has become one of the most important element of the armamentarium of psychopharmacology. While initially these pharmacons were used in the treatment of psychotic states (including psychotic mania) in the last approximately 10-15 years new indications - such as treatment of depressive, manic and mixed states and also mood-stabilization in bipolar disorder and also the treatment of major depressive disorder - for several second-generation antipsychotic (SGA) agents have been introduced...
June 2017: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28918386/evaluation-of-previously-embolized-intracranial-aneurysms-inter-and-intra-rater-reliability-among-neurosurgeons-and-interventional-neuroradiologists
#19
Scott L Zuckerman, Nikita Lakomkin, Jordan A Magarik, Jan Vargas, Marcus Stephens, Babatunde Akinpelu, Alejandro M Spiotta, Azam Ahmed, Adam S Arthur, David Fiorella, Ricardo Hanel, Joshua A Hirsch, Ferdinand K Hui, Robert F James, David F Kallmes, Philip M Meyers, David B Niemann, Peter Rasmussen, Raymond D Turner, Babu G Welch, J Mocco
BACKGROUND: The angiographic evaluation of previously coiled aneurysms can be difficult yet remains critical for determining re-treatment. OBJECTIVE: The main objective of this study was to determine the inter-rater reliability for both the Raymond Scale and per cent embolization among a group of neurointerventionalists evaluating previously embolized aneurysms. METHODS: A panel of 15 neurointerventionalists examined 92 distinct cases of immediate post-coil embolization and 1 year post-embolization angiographs...
September 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28918362/there-are-no-no-responders-to-low-or-high-resistance-training-volumes-among-older-women
#20
Matheus de Siqueira Mendes Barbalho, Paulo Gentil, Mikel Izquierdo, James Fisher, James Steele, Rodolfo de Azevedo Raiol
OBJECTIVES: To assess the prevalence of non-responders to different tests and to compare the effects of different resistance training (RT) volumes on muscle strength, anthropometric and functional performance of older women. METHODS: Three hundred seventy six women performed 12weeks of RT with either low or high volume (LV, 71.29±5.77years and HV 69.73±5.88years, respectively). Both groups performed the same exercises, and all parameters were held constant except for the number of sets performed per week...
September 13, 2017: Experimental Gerontology
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