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https://www.readbyqxmd.com/read/29305622/-large-thoracic-tumor-easy-diagnosis-isn-t-it
#1
A Sträter, A Huber, J Slotta-Huspenina, E Rummeny, K Holzapfel
No abstract text is available yet for this article.
January 5, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29277846/corrigendum-to-fatal-systemic-vasoconstriction-in-a-case-of-metastatic-small-intestinal-net
#2
Jochen Stenzel, Sebastian Noe, Konstantin Holzapfel, Franziska Erlmeier, Florian Eyer
[This corrects the article DOI: 10.1155/2017/9810194.].
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/29247253/perspectives-on-sharing-models-and-related-resources-in-computational-biomechanics-research
#3
Ahmet Erdemir, Peter J Hunter, Gerhard A Holzapfel, Leslie M Loew, John Middleton, Christopher R Jacobs, Perumal Nithiarasu, Rainald Lohner, Guowei Wei, Beth A Winkelstein, Victor H Barocas, Farshid Guilak, Joy Ku, Jennifer L Hicks, Scott Delp, Michael Sacks, Jeffrey A Weiss, Dr Gerard A Ateshian, Steve A Maas, Andrew D McCulloch, Grace C Y Peng
The role of computational modeling for biomechanics will be increasingly prominent. In computational biomechanics, model sharing can facilitate assessment of reproducibility, and can provide an opportunity for repurposing and reuse, and a venue for medical training. The community's desire to investigate biological and biomechanical phenomena crossing multiple systems, scales, and physical domains, also motivates sharing of modeling resources as blending of models developed by domain experts is anticipated. The goal of this article is to understand current perspectives in the biomechanics community for the sharing of computational models and related resources...
December 16, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29222053/assessment-of-the-effect-of-cooking-on-speciation-and-bioaccessibility-cellular-uptake-of-arsenic-in-rice-using-in-vitro-digestion-and-caco-2-and-psi-cells-as-model
#4
Seul Gi Lee, Jinhye Kim, Hyunjoon Park, Wilhelm Holzapfel, Kwang-Won Lee
No abstract text is available yet for this article.
December 5, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29222051/long-term-fermented-soybean-paste-improves-metabolic-parameters-associated-with-non-alcoholic-fatty-liver-disease-and-insulin-resistance-in-high-fat-diet-induced-obese-mice
#5
Min-Seok Kim, Bobae Kim, Haryung Park, Yosep Ji, Wilhelm Holzapfel, Do-Young Kim, Chang-Kee Hyun
Recently, Korean traditional fermented soybean paste, called Doenjang, has attracted attention for its protective effect against diet-related chronic diseases such as obesity and type 2 diabetes. Long-term fermented soybean pastes (LFSPs) are made by fermentation with naturally-occurring microorganisms for several months, whereas short-term fermented soybean pastes (SFSPs) are produced by shorter-time fermentation inoculated with a starter culture. Here, we demonstrate that administration of LFSP, but not SFSP, protects high-fat diet (HFD)-fed obese mice against non-alcohol fatty liver disease (NAFLD) and insulin resistance...
December 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29220821/predictive-capabilities-of-various-constitutive-models-for-arterial-tissue
#6
Florian Schroeder, Stanislav Polzer, Martin Slažanský, Vojtěch Man, Pavel Skácel
INTRODUCTION: Aim of this study is to validate some constitutive models by assessing their capabilities in describing and predicting uniaxial and biaxial behavior of porcine aortic tissue. METHODS: 14 samples from porcine aortas were used to perform 2 uniaxial and 5 biaxial tensile tests. Transversal strains were furthermore stored for uniaxial data. The experimental data were fitted by four constitutive models: Holzapfel-Gasser-Ogden model (HGO), model based on generalized structure tensor (GST), Four-Fiber-Family model (FFF) and Microfiber model...
November 22, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29199498/gpgpu-based-explicit-finite-element-computations-for-applications-in-biomechanics-the-performance-of-material-models-element-technologies-and-hardware-generations
#7
V Strbac, D M Pierce, J Vander Sloten, N Famaey
Finite element (FE) simulations are increasingly valuable in assessing and improving the performance of biomedical devices and procedures. Due to high computational demands such simulations may become difficult or even infeasible, especially when considering nearly incompressible and anisotropic material models prevalent in analyses of soft tissues. Implementations of GPGPU-based explicit FEs predominantly cover isotropic materials, e.g. the neo-Hookean model. To elucidate the computational expense of anisotropic materials, we implement the Gasser-Ogden-Holzapfel dispersed, fiber-reinforced model and compare solution times against the neo-Hookean model...
December 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/29197751/dacron-graft-as-replacement-to-dissected-aorta-a-three-dimensional-fluid-structure-interaction-analysis
#8
R Jayendiran, B M Nour, A Ruimi
Aortic dissection (AD) is a serious medical condition characterized by a tear in the intima, the inner layer of the aortic walls. In such occurrence, blood is being diverted to the media (middle) layer and may result in patient death if not quickly attended. In the case where the diseased portion of the aorta needs to be replaced, one common surgical technique is to use a graft made of Dacron, a synthetic fabric. We investigate the response of a composite human aortic segment-Dacron graft structure subjected to blood flow using the three-dimensional fluid-structure-interaction (FSI) capability in Abaqus...
November 26, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29197490/no-279-directive-clinique-de-consensus-sur-la-sant%C3%A3-sexuelle-de-la-femme
#9
John Lamont, Krisztina Bajzak, Céline Bouchard, Margaret Burnett, Sandra Byers, Trevor Cohen, William Fisher, Stephen Holzapfel, Vyta Senikas
No abstract text is available yet for this article.
December 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29197489/no-279-female-sexual-health-consensus-clinical-guidelines
#10
John Lamont, Krisztina Bajzak, Céline Bouchard, Margaret Burnett, Sandra Byers, Trevor Cohen, William Fisher, Stephen Holzapfel, Vyta Senikas
OBJECTIVE: To establish national guidelines for the assessment of women's sexual health concerns and the provision of sexual health care for women. EVIDENCE: Published literature was retrieved through searches of PubMed, CINAHL, and the Cochrane Library from May to October 2010, using appropriate controlled vocabulary (e .g., sexuality, "sexual dysfunction," "physiological," dyspareunia) and key words (e .g ., sexual dysfunction, sex therapy, anorgasmia). Results were restricted, where possible, to systematic reviews, randomized control trials/controlled clinical trials, and observational studies...
December 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29191788/progressive-impairment-of-atrial-myocyte-function-during-left-ventricular-hypertrophy-and-heart-failure
#11
Florentina Pluteanu, Yulia Nikonova, Anna Holzapfel, Birgit Herzog, Anna Scherer, Judit Preisenberger, Jelena Plačkić, Katharina Scheer, Teodora Ivanova, Alicja Bukowska, Andreas Goette, Jens Kockskämper
Hypertensive heart disease (HHD) can cause left ventricular (LV) hypertrophy and heart failure (HF). It is unclear, though, which factors may contribute to the transition from compensated LV hypertrophy to HF in HHD. We hypothesized that maladaptive atrial remodeling with impaired atrial myocyte function would occur in advanced HHD and may be associated with the emergence of HF. Experiments were performed on atrial myocytes and tissue from old (15-25months) normotensive Wistar-Kyoto rats (WKY) and spontaneously hypertensive rats (SHR) with advanced HHD...
November 27, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29168305/the-trajectory-of-anhedonic-and-depressive-symptoms-in-anorexia-nervosa-a-longitudinal-and-cross-sectional-approach
#12
Ilka Boehm, Luisa Flohr, Julius Steding, Larissa Holzapfel, Jochen Seitz, Veit Roessner, Stefan Ehrlich
Anhedonia, the inability to experience pleasure, is associated with depression, schizophrenia and also anorexia nervosa (AN). However, it remains unanswered whether anhedonic symptoms in AN are undernutrition-dependent depressive symptoms or a core feature of AN. Therefore, we aim at investigating the trajectory of anhedonic and depressive symptoms over the course of the disorder. Self-reported symptoms were collected in 35 nonmedicated acutely ill, 33 long-term recovered patients and 62 healthy females. The majority of the acutely ill (n = 24) were followed up after >15% weight restoration (short-term recovery)...
November 23, 2017: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/29156355/biomechanical-evaluation-of-a-personalized-external-aortic-root-support-applied-in-the-ross-procedure
#13
Julie Vastmans, Heleen Fehervary, Peter Verbrugghe, Tom Verbelen, Emma Vanderveken, Jos Vander Sloten, Tom Treasure, Filip Rega, Nele Famaey
A commonly heard concern in the Ross procedure, where a diseased aortic valve is replaced by the patient's own pulmonary valve, is the possibility of pulmonary autograft dilatation. We performed a biomechanical investigation of the use of a personalized external aortic root support or exostent as a possibility for supporting the autograft. In ten sheep a short length of pulmonary artery was interposed in the descending aorta, serving as a simplified version of the Ross procedure. In seven of these cases, the autograft was supported by an external mesh or so-called exostent...
November 11, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29071621/s%C3%A3-%C3%A3-stoffe-machen-nicht-schlanker
#14
REVIEW
C Holzapfel
No abstract text is available yet for this article.
October 2017: MMW Fortschritte der Medizin
https://www.readbyqxmd.com/read/29050554/natural-variation-and-genetics-of-photoperiodism-in-wyeomyia-smithii
#15
William E Bradshaw, Christina M Holzapfel
Seasonal change in the temperate and polar regions of Earth determines how the world looks around us and, in fact, how we live our day-to-day lives. For biological organisms, seasonal change typically involves complex physiological and metabolic reorganization, the majority of which is regulated by photoperiodism. Photoperiodism is the ability of animals and plants to use day length or night length, resulting in life-historical transformations, including seasonal development, migration, reproduction, and dormancy...
2017: Advances in Genetics
https://www.readbyqxmd.com/read/29029532/11c-choline-pet-ct-and-whole-body-mri-including-diffusion-weighted-imaging-for-patients-with-recurrent-prostate-cancer
#16
Hinrich Wieder, Ambros J Beer, Konstantin Holzapfel, Martin Henninger, Tobias Maurer, Sarah Schwarzenboeck, Ernst J Rummeny, Matthias Eiber, Jens Stollfuss
PURPOSE: To compare the detection efficacy of 11C-choline positron emission tomography and computed tomography (PET/CT) with whole-body magnetic resonance imaging (MRI) including diffusion-weighted imaging (DWI) in patients with suspected recurrent prostate cancer. MATERIALS AND METHODS: Fifty-seven patients (mean age 68, range 54-80 years) underwent 11C-choline PET/CT and MRI using T1-weighted (T1w), short-tau inversion recovery (STIR), and DWI. Two readers visually rated suspicious lesions on a 5-point scale in 20 different regions...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28993500/keeping-time-without-a-spine-what-can-the-insect-clock-teach-us-about-seasonal-adaptation
#17
REVIEW
David L Denlinger, Daniel A Hahn, Christine Merlin, Christina M Holzapfel, William E Bradshaw
Seasonal change in daylength (photoperiod) is widely used by insects to regulate temporal patterns of development and behaviour, including the timing of diapause (dormancy) and migration. Flexibility of the photoperiodic response is critical for rapid shifts to new hosts, survival in the face of global climate change and to reproductive isolation. At the same time, the daily circadian clock is also essential for development, diapause and multiple behaviours, including correct flight orientation during long-distance migration...
November 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28963936/experimental-and-numerical-studies-of-two-arterial-wall-delamination-modes
#18
Xiaochang Leng, Boran Zhou, Xiaomin Deng, Lindsey Davis, Susan M Lessner, Michael A Sutton, Tarek Shazly
Arterial wall dissection, which results from various pathophysiological processes, can lead to the occurrence of large area delamination in the aortic wall that can potentially block blood flow and lead to deleterious clinical conditions. Despite its critical clinical relevance, few studies have focused on investigating the failure mode of delamination in the arterial wall. In this study, we quantify the energy release rate of the medial layer of a porcine abdominal aorta via two delamination experiments: the mixed-mode delamination experiment and the "T"-shaped delamination experiment...
September 19, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28900982/abspeck-programm-sollte-lang-dauern
#19
C Holzapfel
No abstract text is available yet for this article.
September 2017: MMW Fortschritte der Medizin
https://www.readbyqxmd.com/read/28894290/association-of-proton-density-fat-fraction-in-adipose-tissue-with-imaging-based-and-anthropometric-obesity-markers-in-adults
#20
D Franz, D Weidlich, F Freitag, C Holzapfel, T Drabsch, T Baum, H Eggers, A Witte, E J Rummeny, H Hauner, D C Karampinos
BACKGROUND/OBJECTIVES: The purpose of this study was to examine the relationship of the proton density fat fraction (PDFF), measured by magnetic resonance imaging (MRI), of supraclavicular and gluteal adipose tissue with subcutaneous and visceral adipose tissue (SAT and VAT) volumes, liver fat fraction and anthropometric obesity markers. The supraclavicular fossa was selected as a typical location where brown adipocytes may be present in humans and the gluteal region was selected as a typical location enclosing primarily white adipocytes...
August 14, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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