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https://www.readbyqxmd.com/read/28102868/control-and-automation-of-multilayered-integrated-microfluidic-device-fabrication
#1
Sarit Kipper, Ludmila Frolov, Ortal Guy, Michal Pellach, Yair Glick, Asaf Malichi, Binyamin A Knisbacher, Efrat Barbiro-Michaely, Dorit Avrahami, Yehuda Yavets-Chen, Erez Y Levanon, Doron Gerber
Integrated microfluidics is a sophisticated three-dimensional (multi layer) solution for high complexity serial or parallel processes. Fabrication of integrated microfluidic devices requires soft lithography and the stacking of thin-patterned PDMS layers. Precise layer alignment and bonding is crucial. There are no previously reported standards for alignment of the layers, which is mostly performed using uncontrolled processes with very low alignment success. As a result, integrated microfluidics is mostly used in academia rather than in the many potential industrial applications...
January 19, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28101243/mir-199a-5p-regulates-hif-1%C3%AE-and-osgin2-and-its-expression-is-correlated-to-soft-tissue-sarcoma-patients-outcome
#2
Jacqueline Keßler, Swetlana Rot, Matthias Bache, Matthias Kappler, Peter Würl, Dirk Vordermark, Helge Taubert, Thomas Greither
Soft tissue sarcomas are a heterogeneous group of malignant neoplasms of mesenchymal origin. Partly due to hypoxia, an aggressive and radioresistant phenotype frequently develops, resulting in poorer patient outcome. microRNAs (miRNAs) are tiny, non-coding regulators of gene expression and in situations of cellular stress situations may predict clinical progression and patient outcome. In the present study, hypoxia-associated miR-199a-5p expression in 96 soft tissue sarcoma samples was analysed by reverse transcription-quantitative polymerase chain reaction and associations between miR-199a-5p expression and patient clinicopathological characteristics and survival were measured...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100590/inferring-individual-inbreeding-and-demographic-history-from-segments-of-identity-by-descent-in-ficedula-flycatcher-genome-sequences
#3
Marty Kardos, Anna Qvarnström, Hans Ellegren
Individual inbreeding and historical demography can be estimated by analyzing runs of homozygosity (ROH), which are indicative of chromosomal segments of identity by descent (IBD). Such analyses have so far been rare in natural populations due to limited genomic resources. We analyzed ROH in whole genome sequences from 287 Ficedula flycatchers representing four species, with the objectives of evaluating the causes of genome-wide variation in the abundance of ROH and inferring historical demography. ROH were clearly more abundant in genomic regions with low recombination rate...
January 18, 2017: Genetics
https://www.readbyqxmd.com/read/28100249/intraoperative-radiation-therapy-iort-in-soft-tissue-sarcoma
#4
REVIEW
Falk Roeder, Robert Krempien
Soft-tissue sarcoma (STS) represent a rare tumor entity, accounting for less than 1% of adult malignancies. The cornerstone of curative intent treatment is surgery with free margins, although the extent of the surgical approach has been subject to change in the last decades. Multimodal approaches usually including radiation therapy have replaced extensive surgical procedures in order to preserve functionality while maintaining adequate local control. However, the possibility to apply adequate radiation doses by external beam radiation therapy (EBRT) can be limited in some situation especially in case of directly adjacent organs at risk with low radiation tolerance...
January 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28099360/aggressive-intramuscular-hemangiomas-in-the-upper-extremity-a-case-report
#5
Hui Lu, Qiang Chen, Hu Yang, Hui Shen
INTRODUCTION: Intramuscular hemangioma (IMH) is a rare congenital soft tissue tumor. Here, we report a case of IMH patient who had undergone several surgeries and other treatments that were all ineffective before he visited us. CLINICAL FINDINGS: This IMH patient was a 16-yearold male who was born with a tumor of unknown size in his right hand and forearm. On physical examination, the tumor and skin flap complex was seen with a size of 14 cm_12 cm in his right hand, and the multiple postoperative scars were shown on his right hand and forearm...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28095649/the-effect-of-mechanical-stress-on-the-proliferation-adipogenic-differentiation-and-gene-expression-of-human-adipose-derived-stem-cells
#6
Nora E Paul, Bernd Denecke, Bong-Sung Kim, Alice Dreser, Jürgen Bernhagen, Norbert Pallua
To allow for a better implementation of external volume expansion to clinical applications for soft tissue regeneration, it is necessary to comprehensively understand the underlying mechanisms. Since human adipose-derived stem cells (hASCs) play a crucial role in soft tissue enlargement, we investigated the impact of cyclic stretch on gene expression, proliferation rate, and adipogenic differentiation of these cells. After cyclic stretching, RNA was extracted and subjected to DNA microarray analysis and RT-qPCR...
January 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28091979/blood-perfusion-in-osteomyelitis-studied-with-15-o-water-pet-in-a-juvenile-porcine-model
#7
Lars Jødal, Ole L Nielsen, Pia Afzelius, Aage K O Alstrup, Søren B Hansen
BACKGROUND: Osteomyelitis is a serious disease which can be difficult to treat despite properly instituted antibiotic therapy. This appears to be related at least partly to degraded vascularisation in the osteomyelitic (OM) lesions. Studies of perfusion in OM bones are, however, few and not quantitative. Quantitative assessment of perfusion could aid in the selection of therapy. A non-invasive, quantitative way to study perfusion is dynamic [(15)O]water positron emission tomography (PET)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28089046/deception-island-antarctica-harbors-a-diverse-assemblage-of-wood-decay-fungi
#8
Benjamin W Held, Robert A Blanchette
Very little is known about fungal diversity in Antarctica as compared to other biomes and how these important organisms function in this unusual ecosystem. Perhaps one of the most unusual ecosystems is that of Deception Island; an active volcanic island part of the South Shetland Islands of the Antarctic Peninsula. Here we describe the fungal diversity associated with historic wood from structures on the island, which reveals a diverse fungal assemblage of known wood decay fungi as well as the discovery of undescribed species...
February 2017: Fungal Biology
https://www.readbyqxmd.com/read/28078073/soft-encapsulation-of-flexible-electrical-stimulation-implant-challenges-and-innovations
#9
Adrien Debelle, Laura Hermans, Maxime Bosquet, Sam Dehaeck, Laurent Lonys, Benoit Scheid, Antoine Nonclercq, Anne Vanhoestenberghe
In this document we discuss the main challenges encountered when producing flexible electrical stimulation implants, and present our approach to solving them for prototype production. We include a study of the optimization of the flexible PCB design, the selection of additive manufacturing materials for the mold, and the chemical compatibility of the different materials. Our approach was tested on a flexible gastro-stimulator as part of the ENDOGES research program.
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28073758/resolution-and-reconciliation-of-non-binary-gene-trees-with-transfers-duplications-and-losses
#10
Edwin Jacox, Mathias Weller, Eric Tannier, Celine Scornavacca
: Gene trees reconstructed from sequence alignments contain poorly supported branches when the phylogenetic signal in the sequences is insufficient to determine them all. When a species tree is available, the signal of gains and losses of genes can be used to correctly resolve the unsupported parts of the gene history. However finding a most parsimonious binary resolution of a non-binary tree obtained by contracting the unsupported branches is NP-hard if transfer events are considered as possible gene scale events, in addition to gene origination, duplication and loss...
January 10, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28071705/digestive-and-appendicular-soft-parts-with-behavioural-implications-in-a-large-ordovician-trilobite-from-the-fezouata-lagerst%C3%A3-tte-morocco
#11
Juan C Gutiérrez-Marco, Diego C García-Bellido, Isabel Rábano, Artur A Sá
Trilobites were one of the most successful groups of marine arthropods during the Palaeozoic era, yet their soft-part anatomy is only known from a few exceptionally-preserved specimens found in a handful of localities from the Cambrian to the Devonian. This is because, even if the sclerotized appendages were not destroyed during early taphonomic stages, they are often overprinted by the three-dimensional, mineralised exoskeleton. Inferences about the ventral anatomy and behavioural activities of trilobites can also be derived from the ichnological record, which suggests that most Cruziana and Rusophycus trace fossils were possibly produced by the actions of trilobites...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28064345/osseous-metastases-of-chordoma-imaging-and-clinical-findings
#12
Connie Chang, Ivan Chebib, Martin Torriani, Miriam Bredella
PURPOSE: To describe the imaging and clinical characteristics of chordoma osseous metastases (COM). MATERIALS AND METHODS: Our study was IRB approved and HIPAA compliant. A retrospective search of our pathology database for pathology-proven COM yielded 15 patients who had undergone MRI, CT, bone scan, and/or FDG-PET/CT. The imaging and clinical features of the COMs were recorded. A control group of age and gender matched chordoma patients without osseous metastasis was evaluated...
January 7, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28060262/sub-nanometer-resolution-imaging-with-amplitude-modulation-atomic-force-microscopy-in-liquid
#13
Ethan J Miller, William Trewby, Amir Farokh Payam, Luca Piantanida, Clodomiro Cafolla, Kislon Voïtchovsky
Atomic force microscopy (AFM) has become a well-established technique for nanoscale imaging of samples in air and in liquid. Recent studies have shown that when operated in amplitude-modulation (tapping) mode, atomic or molecular-level resolution images can be achieved over a wide range of soft and hard samples in liquid. In these situations, small oscillation amplitudes (SAM-AFM) enhance the resolution by exploiting the solvated liquid at the surface of the sample. Although the technique has been successfully applied across fields as diverse as materials science, biology and biophysics and surface chemistry, obtaining high-resolution images in liquid can still remain challenging for novice users...
December 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060129/the-significant-effects-of-pazopanib-on-multiple-pulmonary-metastatic-lesions-of-alveolar-soft-part-sarcoma-a-case-report
#14
Yasutomo Funakoshi, Masahiko Okada, Soichiro Kawata, Nobuhiro Ito, Kuniko Abe, Hiroyuki Moriuchi
No abstract text is available yet for this article.
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28058573/anterior-wrist-and-medial-malleolus-as-the-novel-sites-of-tissue-selection-a-retrospective-study-on-electric-shock-death-through-the-hand-to-foot-circuit-pathway
#15
Guangtao Xu, Ruibing Su, Junyao Lv, Bo Hu, Huan Gu, Xianxian Li, Jiang Gu, Xiaojun Yu
Our previous work demonstrated that characteristic changes could occur in the anterior wrist and medial malleolus in electric deaths through the hand-to-foot electric circuit pathway in an electric shock rat model. However, whether the same phenomenon occurs in humans is unknown. The aim of the present retrospective study was to ascertain whether the anterior wrist and medial malleolus could also be selected as the promising and significant sites in electric death through the hand-to-foot circuit pathway. Nineteen human cases from the autopsy and one clinical survivor who sustained a severe electric shock through the hand-to-foot circuit pathway were analyzed...
January 6, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28050984/evaluation-of-bacteriological-profile-in-the-apical-root-segment-of-the-patients-with-primary-apical-periodontitis
#16
Aravind Tatikonda, N Sudheep, Krishna P Biswas, K Gowtham, Sudarshan Pujari, Padam Singh
INTRODUCTION: Apical periodontitis usually results from bacterial accumulation and contamination occurring in the root-canal system, and extending beyond the apical foramen to involve the periapical tissues. Literature has a paucity of the studies that stress on the division and analysis of the pulp canal segments. The reason for this disparity might be the technique used for collecting the samples from the pulp canals. Hence, we carried out the present study to evaluate the microbial flora in the apical part of the roots with necrotic pulp canals...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050641/children-presenting-in-delayed-fashion-after-minor-head-trauma-with-scalp-swelling-do-they-require-further-workup
#17
Jonathan N Sellin, Amee Moreno, Sheila L Ryan, Sandi K Lam, Marcella Donaruma-Kwoh, Thomas G Luerssen, Andrew Jea
PURPOSE: It is common to evaluate children who have sustained minor head trauma with computed tomography (CT) of the head. Scalp swelling, in particular, has been associated with intracranial injury. A subset of patients, however, present in delayed fashion, often days after the head trauma, as soft tissue edema progresses and their caregiver notices scalp swelling. We explore the value of further workup in this setting. METHODS: We conducted a retrospective review of a prospectively collected cohort of children ≤24 months of age presenting to the Texas Children's Hospital with scalp swelling more than 24 h following a head trauma...
January 3, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28050534/the-use-of-negative-pressure-wound-therapy-in-the-treatment-of-infected-wounds-case-studies
#18
Daniel de Alcântara Jones, Wilson Vasconcelos Neves Filho, Janice de Souza Guimarães, Daniel de Araújo Castro, Antonio Marcos Ferracini
OBJECTIVE: To evaluate the results and benefits obtained from the topical use of negative pressure wound therapy (NPWT) in patients with infected wounds. METHODS: This was a retrospective study of 20 patients (17 males and three females, mean age 42 years) with infected wounds treated using NPWT. The infected wounds were caused by trauma. The treatment system used was VAC.(®) (Vacuum Assisted Closure, KCI, San Antonio, United States) applied to the wound in continuous mode from 100 to 125 mmHg...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#19
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048477/we-de-206-04-mri-pulse-sequences-spin-echo-gradient-echo-epi-non-cartesia
#20
R Pooley
: Magnetic resonance imaging (MRI) has become an essential part of clinical imaging due to its ability to render high soft tissue contrast. Instead of ionizing radiation, MRI use strong magnetic field, radio frequency waves and field gradients to create diagnostic useful images. It can be used to image the anatomy and also functional and physiological activities within the human body. Knowledge of the basic physical principles underlying MRI acquisition is vitally important to successful image production and proper image interpretation...
June 2016: Medical Physics
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