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Bioinspired origami-based soft prosthetic knees.
Nat Commun
December 2024
Department of Advanced Manufacturing and Robotics, College of Engineering, Peking University, Beijing, China.
Prosthetic knees represent a prevalent solution for above-knee amputation rehabilitation. However, satisfying the ambulation requirements of users while achieving their comfort needs in terms of lightweight, bionic, shock-absorbing, and user-centric, remains out of reach. Soft materials seem to provide alternative solutions as their properties are conducive to the comfort aspect.
View Article and Find Full Text PDFPreliminary study on the preparation of lyophilized acellular nerve scaffold complexes from rabbit sciatic nerves with human umbilical cord mesenchymal stem cells.
World J Stem Cells
December 2024
Department of Orthopedics, Children's Hospital of Fudan University & National Children's Medical Center, Shanghai 201102, China.
Background: The gold standard of care for patients with severe peripheral nerve injury is autologous nerve grafting; however, autologous nerve grafts are usually limited for patients because of the limited number of autologous nerve sources and the loss of neurosensory sensation in the donor area, whereas allogeneic or xenografts are even more limited by immune rejection. Tissue-engineered peripheral nerve scaffolds, with the morphology and structure of natural nerves and complex biological signals, hold the most promise as ideal peripheral nerve "replacements".
Aim: To prepare allogenic peripheral nerve scaffolds using a low-toxicity decellularization method, and use human umbilical cord mesenchymal stem cells (hUC-MSCs) as seed cells to cultivate scaffold-cell complexes for the repair of injured peripheral nerves.
Analyzing the effect of surgical and corneal parameters on the postoperative refractive outcomes of SMILE in myopic eyes based on machine learning.
Am J Ophthalmol
December 2024
Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China; School of Medicine, Nankai University, Tianjin, China; Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Nankai University Affiliated Ophthalmology Hospital, Tianjin, China; Nankai Eye Institute, Nankai University, Tianjin, China. Electronic address:
Purpose: To analyze the effect of individual parameters on the postoperative refractive outcomes of small incision lenticule extraction in myopic eyes using machine learning methods.
Design: Retrospective Clinical Cohort Study METHODS: We included 477 patients (922 eyes) of small incision lenticule extraction at Tianjin Ophthalmology Hospital and divided the patients into two groups to analyzed the factors affecting postoperative refractive outcomes based on the label of postoperative spherical equivalent (SE) ≤ -0.50D.
Leaf traits and insect herbivory levels in two Mediterranean oaks and their hybrids through contrasting environmental gradients.
Tree Physiol
December 2024
Department of Ecology, Faculty of Biology, University of Salamanca, Salamanca 37071, Spain.
Insect herbivory has attracted enormous attention from researchers due to its effects on plant fitness. However, there remain questions such as what are the most important leaf traits that determine consumption levels, whether there are latitudinal gradients in herbivore pressure, or whether there are differences in susceptibility between hybrids and their parental species. In this work we address all these issues in two species of Mediterranean Quercus (Q.
View Article and Find Full Text PDFBrillouin assessment of the crystalline lens in patients with high myopia after long-term implantable collamer lens V4c implantation.
Acta Ophthalmol
December 2024
Department of Ophthalmology and Vision Science, Eye and ENT Hospital, Fudan University, Shanghai, China.
Purpose: To evaluate the long-term effects of implantable collamer lens (ICL) V4c on the biomechanical and morphological properties of crystalline lenses in Chinese adults with high myopia using Brillouin microscopy (BM).
Methods: In this case-control study, 102 highly myopic eyes from 102 patients (18-48 years, preoperative spherical equivalent (SE): -6.00--21.
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