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Causal relationship between psoriasis and sudden deafness: a Mendelian randomization study.
Arch Dermatol Res
January 2025
Tianjin Medical University, Tianjin, 300102, China.
Objective: This study aims to investigate the genetic link between psoriasis and sudden sensorineural hearing loss (SSNHL).
Methods: From a genetic standpoint, this study further highlighted the connection between psoriasis and SSNHL. Single nucleotide polymorphisms (SNPs) connected to SSNHL could be found using a genome-wide association study from the IEU OpenGWAS project website.
Spontaneous base flipping helps drive Nsp15's preferences in double stranded RNA substrates.
Nat Commun
January 2025
Molecular and Cellular Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, 111 T. W. Alexander Drive, Research Triangle Park, NC, 27709, USA.
Coronaviruses evade detection by the host immune system with the help of the endoribonuclease Nsp15, which regulates levels of viral double stranded RNA by cleaving 3' of uridine (U). While prior structural data shows that to cleave double stranded RNA, Nsp15's target U must be flipped out of the helix, it is not yet understood whether Nsp15 initiates flipping or captures spontaneously flipped bases. We address this gap by designing fluorinated double stranded RNA substrates that allow us to directly relate a U's sequence context to both its tendency to spontaneously flip and its susceptibility to cleavage by Nsp15.
View Article and Find Full Text PDFDesign and optimization of hollow microneedle spacing for three materials using finite element methods.
Sci Rep
January 2025
School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China.
The main advantages of microneedles are precise drug delivery through human skin, minimal tissue damage and painlessness. We conducted structural analysis and skin puncture studies of hollow microneedles using ANSYS for three materials: Hafnium Dioxide (HfO), Polyglycolic acid (PGA) and Polylactic acid (PLA). Firstly, we selected three lengths, three tip diameters and three base diameters to conduct a L(3) orthogonal experiment.
View Article and Find Full Text PDFTransvenous embolization of brain arteriovenous malformations featuring multiple draining veins with 4D-DSA: a case series and technical insights.
J Neurointerv Surg
January 2025
Intervention Neuroradiology, CHU Limoges, Limoges, Aquitaine-Limousin-Poitou-Charentes, France
Background: Hemorrhage is a major complication of brain arteriovenous malformations (AVMs) embolization, which can be related to persistent arteriovenous shunts that were not completely occluded during the embolization. In transvenous embolization (TVE) this risk is deemed higher for AVMs larger than 3 cm featuring multiple veins of drainage. Herein, we will discuss a few selected cases where brain AVMs with more than one draining vein were deemed safe for curative embolization with advanced endovascular techniques after a careful anatomical study through the four dimensional-digital subtraction angiography (4D-DSA) imaging.
View Article and Find Full Text PDFInsights into the behaviour of phosphorylated DNA breaks from molecular dynamic simulations.
Comput Biol Chem
December 2024
Faculty of Biochemistry and Molecular Medicine, University of Oulu, PO Box 5400, Oulu 90014, Finland; Biocenter Oulu, University of Oulu, PO Box 5400, Oulu 90014, Finland. Electronic address:
Single-stranded breaks (SSBs) are the most frequent DNA lesions threatening genomic integrity-understanding how DNA sensor proteins recognize certain SSB types is crucial for studies of the DNA repair pathways. During repair of damaged DNA the final SSB that is to be ligated contains a 5'-phosphorylated end. The present work employed molecular simulation (MD) of DNA with a phosphorylated break in solution to address multiple questions regarding the dynamics of the break site.
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