Autologous arteriovenous fistula (AVF) is a commonly used vascular access (VA) for hemodialysis, and hemodynamic changes are one of the main factors for its failure. To explore the effect of geometry on the hemodynamics in the AVF, a modified model is built with a gradual and smooth turn at the anastomosis and is compared with the traditional model, which has an abrupt sharp turn at the anastomisis. Transient computational fluid dynamics (CFD) simulations were performed for the comparison and analysis of the hemodynamic fields of the two models at different stages of the pulse cycle. The results showed that the low shear stress region and high oscillatory shear stress region in the modified AVF model coincided with regions of intimal hyperplasia that have been identified by previous studies. A comparison with the blood flow velocities measured in vivo was performed, and the error between the simulation results and the medical data was reduced by 22% in the modified model, which verifies the rationality and utility of the modified model.
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http://dx.doi.org/10.1002/cnm.3856 | DOI Listing |
Mol Biol (Mosk)
December 2024
Center of Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334 Russia.
The low knock-in efficiency, especially in primary human cells, limits the use of the genome editing technology for therapeutic purposes, rendering it important to develop approaches for increasing the knock-in levels. In this work, the efficiencies of several approaches were studied using a model of knock-in of a construct coding for the peptide HIV fusion inhibitor MT-C34 into the human CXCR4 locus in the CEM/R5 T cell line. First, donor DNA modification was evaluated as a means to improve the efficiency of plasmid transport into the nucleus.
View Article and Find Full Text PDFAmyotroph Lateral Scler Frontotemporal Degener
December 2024
Department of Neurology, Duke University, Durham, NC, USA.
ALSUntangled reviews alternate and off-label treatments prompted by patient interest. Here, we review psilocybin, a chemical derived from mushrooms and belonging in the category of drugs known as psychedelics. Psilocybin has plausible mechanisms for slowing ALS progression because of its ability to cross the blood brain barrier and effect neurogenesis and inflammation.
View Article and Find Full Text PDFBMC Womens Health
December 2024
Nursing Department, The Third Xiangya Hospital, Central South University, Changsha, China.
Background: Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age. Body image distress (BID) refers to psychological distress caused by deviations in the individual's self-aesthetic ability. The objectives of this study are to investigate the prevalence of psychological distress; and to assess the role of anxiety in the relationship between body image distress and quality of life (QoL) among women with polycystic ovary syndrome using a path analysis approach.
View Article and Find Full Text PDFPrim Care Diabetes
December 2024
School of Health Science, Oakland University, Rochester, MI 48309, USA. Electronic address:
Introduction: The three main sensory complications of Type 2 Diabetes are diabetic peripheral neuropathy (DPN), diabetic retinopathy (DR), and diabetic vestibulopathy (DV). Current screening for these has been found to be insufficient, and balance testing may be a way to improve screening practices. This study aims to assess if the presence of sensory complications can be used to predict balance scores.
View Article and Find Full Text PDFJ Neurosci Methods
December 2024
Laboratoire des Systèmes Perceptifs, Département d'Étude Cognitive, École Normale Supérieure, PSL, Paris, France; Institute for Systems Research, Electrical and Computer Engineering, University of Maryland, College Park, USA.
Background: IDyOM (Information Dynamics of Music) is the statistical model of music the most used in the community of neuroscience of music. It has been shown to allow for significant correlations with EEG (Marion, 2021), ECoG (Di Liberto, 2020) and fMRI (Cheung, 2019) recordings of human music listening. The language used for IDyOM -Lisp- is not very familiar to the neuroscience community and makes this model hard to use and more importantly to modify.
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