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https://www.readbyqxmd.com/read/28809443/characterisation-in-vitro-and-in-vivo-evaluation-of-valproic-acid-loaded-nanoemulsion-for-improved-brain-bioavailability
#1
Suk Fei Tan, Brian P Kirby, Johnson Stanslas, Hamidon Bin Basri
OBJECTIVE: This study was aimed to investigate the potential of formulated valproic acid-encapsulated nanoemulsion (VANE) to improve the brain bioavailability of valproic acid (VPA). METHODS: Valproic acid-encapsulated nanoemulsions were formulated and physically characterised (osmolarity, viscosity, drug content, drug encapsulation efficiency). Further investigations were also conducted to estimate the drug release, cytotoxic profile, in-vitro blood-brain barrier (BBB) permeability, pharmacokinetic parameter and the concentration of VPA and VANE in blood and brain...
August 15, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28808016/hydrodynamics-of-microbial-filter-feeding
#2
Lasse Tor Nielsen, Seyed Saeed Asadzadeh, Julia Dölger, Jens H Walther, Thomas Kiørboe, Anders Andersen
Microbial filter feeders are an important group of grazers, significant to the microbial loop, aquatic food webs, and biogeochemical cycling. Our understanding of microbial filter feeding is poor, and, importantly, it is unknown what force microbial filter feeders must generate to process adequate amounts of water. Also, the trade-off in the filter spacing remains unexplored, despite its simple formulation: A filter too coarse will allow suitably sized prey to pass unintercepted, whereas a filter too fine will cause strong flow resistance...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28777302/bee-hymenoptera-apoidea-diversity-and-sampling-methodology-in-a-midwestern-usa-deciduous-forest
#3
Kenneth W McCravy, Jared D Ruholl
Forests provide potentially important bee habitat, but little research has been done on forest bee diversity and the relative effectiveness of bee sampling methods in this environment. Bee diversity and sampling methodology were studied in an Illinois, USA upland oak-hickory forest using elevated and ground-level pan traps, malaise traps, and vane traps. 854 bees and 55 bee species were collected. Elevated pan traps collected the greatest number of bees (473), but ground-level pan traps collected greater species diversity (based on Simpson's diversity index) than did elevated pan traps...
August 4, 2017: Insects
https://www.readbyqxmd.com/read/28765718/checklist-of-bees-apoidea-from-a-private-conservation-property-in-west-central-montana
#4
Marirose Kuhlman, Skyler Burrows
BACKGROUND: Here we present preliminary results from the first three years of a long-term bee survey conducted at a 3,840-ha private conservation property in the northern Sapphire Mountains and Bitterroot River Valley, and a pilot study at an associated 80-ha property in the Swan River Valley, Missoula County, Montana, USA. The survey includes hand-net, bowl-trap, and blue-vane trap collections. The resulting checklist comprises 229 bee species and morphospecies within 5 families, 38 genera and 91 subgenera...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/28710556/visual-mismatch-negativity-vmmn-for-low-and-high-level-deviances-a-control-study
#5
Domonkos File, Bálint File, Flóra Bodnár, István Sulykos, Krisztina Kecskés-Kovács, István Czigler
The aim of our studies was to separate the effects of violating a sequential rule (genuine visual mismatch negativity; gvMMN) from the decreased activity in response to repeated stimuli (stimulus-specific adaptation; SSA) for simple and more complex stimuli. To accomplish this goal, different control procedures were applied with the aim of finding the correct control for vMMN studies. Event-related brain electric activity (ERPs) was measured in response to nonattended visual stimuli that were presented either in an oddball manner or in various control sequences...
July 14, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28668073/clinically-node-negative-breast-cancer-patients-undergoing-breast-conserving-therapy-sentinel-lymph-node-procedure-versus-follow-up-a-dutch-randomized-controlled-multicentre-trial-boog-2013-08
#6
L M van Roozendaal, M L G Vane, T van Dalen, J A van der Hage, L J A Strobbe, L J Boersma, S C Linn, M B I Lobbes, P M P Poortmans, V C G Tjan-Heijnen, K K B T Van de Vijver, J de Vries, A H Westenberg, A G H Kessels, J H W de Wilt, M L Smidt
BACKGROUND: Studies showed that axillary lymph node dissection can be safely omitted in presence of positive sentinel lymph node(s) in breast cancer patients treated with breast conserving therapy. Since the outcome of the sentinel lymph node biopsy has no clinical consequence, the value of the procedure itself is being questioned. The aim of the BOOG 2013-08 trial is to investigate whether the sentinel lymph node biopsy can be safely omitted in clinically node negative breast cancer patients treated with breast conserving therapy...
July 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28662956/tranexamic-acid-in-knee-surgery-study-a-multicentered-randomized-controlled-trial
#7
Marinus D J Stowers, James Aoina, Andrew Vane, Vaughan Poutawera, Andrew G Hill, Jacob T Munro
BACKGROUND: Postoperative anemia following elective arthroplasty can lead to prolonged hospital stay and delays in rehabilitation and is often poorly tolerated in patients with cardiovascular disease. Tranexamic acid (TXA) has been shown to reduce perioperative blood loss in total knee arthroplasty (TKA). However, questions over its optimal route of administration remain. METHODS: A double-blinded, placebo, multicentered, randomized, controlled trial investigating the efficacy of topical and systemic routes of a single intraoperative dose (1...
June 9, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28649147/multiblock-high-order-large-eddy-simulation-of-powered-fontan-hemodynamics-towards-computational-surgery
#8
Yann T Delorme, Mark D Rodefeld, Steven H Frankel
Children born with only one functional ventricle must typically undergo a series of three surgeries to obtain the so-called Fontan circulation in which the blood coming from the body passively flows from the Vena Cavae (VCs) to the Pulmonary Arteries (PAs) through the Total Cavopulmonary Connection (TCPC). The circulation is inherently inefficient due to the lack of a subpulmonary ventricle. Survivors face the risk of circulatory sequelae and eventual failure for the duration of their lives. Current efforts are focused on improving the outcomes of Fontan palliation, either passively by optimizing the TCPC, or actively by using mechanical support...
January 17, 2017: Computers & Fluids
https://www.readbyqxmd.com/read/28647622/risk-factors-for-unsuccessful-acetabular-press-fit-fixation-at-primary-total-hip-arthroplasty
#9
U Brulc, V Antolič, B Mavčič
BACKGROUND: Surgeon at primary total hip arthroplasty sometimes cannot achieve sufficient cementless acetabular press-fit fixation and must resort to other fixation methods. Despite a predominant use of cementless cups, this issue is not fully clarified, therefore we performed a large retrospective study to: (1) identify risk factors related to patient or implant or surgeon for unsuccessful intraoperative press-fit; (2) check for correlation between surgeons' volume of operated cases and the press-fit success rate...
June 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28643335/a-review-of-hemolysis-prediction-models-for-computational-fluid-dynamics
#10
REVIEW
Hai Yu, Sebastian Engel, Gábor Janiga, Dominique Thévenin
Flow-induced hemolysis is a crucial issue for many biomedical applications; in particular, it is an essential issue for the development of blood-transporting devices such as left ventricular assist devices, and other types of blood pumps. In order to estimate red blood cell (RBC) damage in blood flows, many models have been proposed in the past. Most models have been validated by their respective authors. However, the accuracy and the validity range of these models remains unclear. In this work, the most established hemolysis models compatible with computational fluid dynamics of full-scale devices are described and assessed by comparing two selected reference experiments: a simple rheometric flow and a more complex hemodialytic flow through a needle...
June 23, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28637478/out-of-africa-the-mite-community-arachnida-acariformes-of-the-common-waxbill-estrilda-astrild-linnaeus-1758-passeriformes-estrildidae-in-brazil
#11
Fabio Akashi Hernandes, Barry M OConnor
BACKGROUND: The common waxbill, Estrilda astrild (L., 1758) (Passeriformes: Estrildidae) is a small passerine bird native to Sub-Saharan Africa that has been introduced into several regions of the world. RESULTS: In the present paper, eight mite species (Acariformes) are reported from this host from Brazil, including three species new to science: Montesauria caravela n. sp., M. conquistador n. sp. (Proctophyllodidae), Trouessartia transatlantica n. sp., T. minuscula Gaud & Mouchet, 1958, T...
June 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28637211/optimization-of-pheromone-traps-for-coryphodema-tristis-lepidoptera-cossidae
#12
Marc Clement Bouwer, Bernard Slippers, Michael John Wingfield, Jeremy Dean Allison, Egmont Richard Rohwer
The Coryphodema tristis (Drury) is an important pest of Eucalyptus nitens (Deane and Maiden) plantations in South Africa. The gregarious larvae of this pest cause damage by feeding on the tree sapwood, and adults emerge in spring each year. The aim of this study was to optimize pheromone traps for operational use in management programs. This was achieved by investigating different pheromone blend combinations and trap types for efficacy under field conditions. Our results confirm that the cross vane bucket funnel trap baited with a 95:2...
June 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28632557/vertebral-end-plate-perforation-for-intervertebral-disc-height-preservation-after-single-level-lumbar-discectomy-a-randomized-controlled-trial
#13
Miha Vodičar, Robert Košak, Matevž Gorenšek, Robert Korez, Tomaž Vrtovec, Jadran Koder, Vane Antolič, Rok Vengust
STUDY DESIGN: Pilot single-centre, stratified, prospective, randomized, double-blinded, parallel-group, controlled study. OBJECTIVE: To determine whether vertebral end-plate perforation after lumbar discectomy causes annulus reparation and intervertebral disc volume restoration. To determine that after 6 months there would be no clinical differences between the control and study group. SUMMARY OF BACKGROUND DATA: Low back pain is the most common long-term complication after lumbar discectomy...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28617339/development-of-a-stereovision-based-technique-to-measure-the-spread-patterns-of-granular-fertilizer-spreaders
#14
Simon R Cool, Jan G Pieters, Dejan Seatovic, Koen C Mertens, David Nuyttens, Tim C Van De Gucht, Jürgen Vangeyte
Centrifugal fertilizer spreaders are by far the most commonly used granular fertilizer spreader type in Europe. Their spread pattern however is error-prone, potentially leading to an undesired distribution of particles in the field and losses out of the field, which is often caused by poor calibration of the spreader for the specific fertilizer used. Due to the large environmental impact of fertilizer use, it is important to optimize the spreading process and minimize these errors. Spreader calibrations can be performed by using collection trays to determine the (field) spread pattern, but this is very time-consuming and expensive for the farmer and hence not common practice...
June 15, 2017: Sensors
https://www.readbyqxmd.com/read/28610183/melittofauna-and-other-potential-pollinators-in-wetland-and-uplands-in-south-central-nebraska-insecta-apoidea
#15
Cynthia N Park, Lisa M Overall, Loren M Smith, Ted Lagrange, Scott McMurry
Our objective was to document potential wild pollinating insects in south central Nebraska. This intensively cultivated region is known as the Rainwater Basin and contains some of the most endangered wetland systems in North America. We used blue vane traps to passively collect insects and insect nets to actively collect on flowering plants from April through October in 2014 and 2015. Habitat types included playa wetlands, adjacent mixed and tallgrass prairies, and agricultural fields. Over 112,000 insects were collected; Hymenoptera represented 78% of the total, and the families Apidae and Halictidae comprised 99% of the total melittofauna...
March 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28588943/towards-an-equitable-internship-programme-at-who-is-reform-nigh
#16
Ashton Barnett-Vanes, Cheng Feng, Maziar Jamnejad, Jing Jun
No abstract text is available yet for this article.
August 2016: BMJ Global Health
https://www.readbyqxmd.com/read/28458119/tnm-classification-and-the-need-for-revision-of-pn3a-breast-cancer
#17
T J A van Nijnatten, M Moossdorff, L de Munck, B Goorts, M L G Vane, K B M I Keymeulen, R G H Beets-Tan, M B I Lobbes, M L Smidt
BACKGROUND: According to the seventh edition of tumour-node-metastasis (TNM) classification, pN3a status in breast cancer patients consists of presence of an infraclavicular lymph node metastasis (LNM) and/or presence of ≥10 axillary LNMs. The aim of this study was to determine whether prognosis of pN3a based on at least an infraclavicular LNM differs from ≥10 axillary LNMs. METHODS: Data were obtained from the Netherlands Cancer Registry. All patients were diagnosed between 2005 and 2008 with primary invasive epithelial breast cancer and pN2a or pN3a status as pathologic result...
April 26, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28445211/polypoidal-choroidal-vasculopathy-associated-with-central-serous-chorioretinopathy-pachychoroid-spectrum-of-diseases
#18
George J Manayath, Vanee Sheth Shah, Veerappan R Saravanan, Venkatapathy Narendran
PURPOSE: To study multimodal imaging features of polypoidal choroidal vasculopathy (PCV) associated with central serous chorioretinopathy (CSC) in the same eye. METHODS: A retrospective observational study of cases of suspected PCV which underwent indocyanine green angiography, fundus fluorescein angiography and optical coherence tomography was done, to look for simultaneous typical CSC-like active leak in the same eye. The relevant history, best-corrected visual acuity, optical coherence tomography, fundus fluorescein angiography, and indocyanine green angiography findings were analyzed...
April 25, 2017: Retina
https://www.readbyqxmd.com/read/28442549/neuraminidases-3-and-4-regulate-neuronal-function-by-catabolizing-brain-gangliosides
#19
Xuefang Pan, Camila De Britto Pará De Aragão, Juan P Velasco-Martin, David A Priestman, Harry Y Wu, Kohta Takahashi, Kazunori Yamaguchi, Luisella Sturiale, Domenico Garozzo, Frances M Platt, Nathalie Lamarche-Vane, Carlos R Morales, Taeko Miyagi, Alexey V Pshezhetsky
Gangliosides (sialylated glycolipids) play an essential role in the CNS by regulating recognition and signaling in neurons. Metabolic blocks in processing and catabolism of gangliosides result in the development of severe neurologic disorders, including gangliosidoses manifesting with neurodegeneration and neuroinflammation. We demonstrate that 2 mammalian enzymes, neuraminidases 3 and 4, play important roles in catabolic processing of brain gangliosides by cleaving terminal sialic acid residues in their glycan chains...
April 25, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28394641/exploring-validation-of-a-graphic-symbol-questionnaire-to-measure-participation-experiences-of-youth-in-activity-settings
#20
Beata Batorowicz, Gillian King, Freda Vane, Madhu Pinto, Parimala Raghavendra
Participation has a subjective and private dimension, and so it is important to hear directly from youth about their experiences in various activity settings, the places where they "do things" and interact with others. To meet this need, our team developed the Self-Reported Experiences of Activity Settings (SEAS) measure, which demonstrated good-to-excellent measurement properties. To address the needs of youth who could benefit from graphic symbol support, the SEAS-PCS(TM), (1) was created. The purpose of this paper is to describe the development of SEAS-PCS and the preliminary study that explores the equivalency of the SEAS and SEAS-PCS...
April 10, 2017: Augmentative and Alternative Communication: AAC
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