Results 91 to 100 of about 17,599 (272)

Proximal Planar Cech Nerves. An Approach to Approximating the Shapes of Irregular, Finite, Bounded Planar Regions [PDF]

arXiv, 2017
This article introduces proximal Cech nerves and Cech complexes, restricted to finite, bounded regions $K$ of the Euclidean plane. A Cech nerve is a collection of intersecting balls. A Cech complex is a collection of nerves that cover $K$. Cech nerves are proximal, provided the nerves are close to each other, either spatially or descriptively.
arxiv  

Supercritical Fluid‐Processed Multifunctional Hybrid Decellularized Extracellular Matrix with Chitosan Hydrogel for Improving Photoaged Dermis Microenvironment

Advanced Healthcare Materials, EarlyView.
These findings advance tissue repair by offering a multifunctional filler that improves large‐scale volume retention, elasticity, and support for vascularized tissue growth. The decellularized extracellular matrix (dECM)‐based material provides low injection force and minimizes swelling, ensuring sustained volume. Combining CMC with supercritical fluid‐
Seol‐Ha Jeong, Jae Jun Kang, Ki‐Myo Kim, Mi hyun lee, Misun Cha, Su Hee Kim, Ji‐Ung Park   +6 more
wiley   +1 more source

Soft Pneumatic Device Designed to Mimic the Periosteal Environment for Regulating the Fate of Mesenchymal Stem Cells

Advanced Healthcare Materials, EarlyView.
This study presents a custom‐made soft pneumatic device (SPD) that mimics complex mechanical forces and fluid flow to enhance in vitro cell differentiation. It shows that low mechanotransduction promotes MSC differentiation into osteoprogenitor cells, while high mechanotransduction causes structural disruptions and cell detachment, providing new ...
Gwang‐Bum Im, Jae Gyeong Lee, Hosub Lim, Jae‐Won Lee, Hyun Su Park, Yongju Kim, Nauman Asad, Hak‐Rin Kim, Jeong Jae Wie, Suk Ho Bhang   +9 more
wiley   +1 more source

Role of MHC-I Expression on Spinal Motoneuron Survival and Glial Reactions Following Ventral Root Crush in Mice

Cells, 2019
Lesions to the CNS/PNS interface are especially severe, leading to elevated neuronal degeneration. In the present work, we establish the ventral root crush model for mice, and demonstrate the potential of such an approach, by analyzing injury evoked ...
Luciana Politti Cartarozzi, Matheus Perez, Frank Kirchhoff, Alexandre Leite Rodrigues de Oliveira   +3 more
doaj   +1 more source

Advancing Chronic Wound Healing through Electrical Stimulation and Adipose‐Derived Stem Cells

Advanced Healthcare Materials, EarlyView.
Chronic cutaneous wounds represent significant challenges due to delayed healing and resistance to conventional treatments. This review explores the potential of combining adipose‐derived stem cells with electrical stimulation to enhance wound healing.
Qiuyue Peng, Yu Qian, Xinxin Xiao, Fengdi Gao, Guoqiang Ren, Cristian Pablo Pennisi   +5 more
wiley   +1 more source

Proximal Nerve Complexes. A Computational Topology Approach [PDF]

arXiv, 2017
This article introduces a theory of proximal nerve complexes and nerve spokes, restricted to the triangulation of finite regions in the Euclidean plane. A nerve complex is a collection of filled triangles with a common vertex, covering a finite region of the plane. Structures called $k$-spokes, $k\geq 1$, are a natural extension of nerve complexes.
arxiv  

Ovarian Function Restoration with Biomimetic Scaffold Incorporating Angiogenic Molecules and Antioxidant in Chemotherapy‐Induced Perimenopausal Model

Advanced Healthcare Materials, EarlyView.
This study developed a biomimetic scaffold incorporating PDRN and melatonin to restore ovarian function in chemotherapy‐induced premature ovarian insufficiency, enhancing cell survival, folliculogenesis, and hormone normalization, while improving fertility rates and offspring in a mouse model, offering a promising strategy for ovarian function ...
Da‐Seul Kim, Dong Seok Jeong, So‐Yeon Park, Ji‐Won Jung, Jeoung Eun Lee, Jun‐Kyu Lee, Seung‐Woon Baek, Dong Ryul Lee, Dong Keun Han   +8 more
wiley   +1 more source

A causal examination of the correlation between hormonal and reproductive factors and low back pain

Frontiers in Endocrinology
BackgroundThe relationship between hormonal fluctuations in the reproductive system and the occurrence of low back pain (LBP) has been widely observed. However, the causal impact of specific variables that may be indicative of hormonal and reproductive ...
Dafu Chen, Jiaxiang Zhou, Chengkai Lin, Junhong Li, Zhengya Zhu, Xuezhi Rao, Jianmin Wang, Jianfeng Li, Hongkun Chen, Fuan Wang, Xianlong Li, Manman Gao, Manman Gao, Manman Gao, Manman Gao, Zhiyu Zhou, Zhiyu Zhou, Yongming Xi, Shufen Li   +18 more
doaj   +1 more source

Promoting axonal regeneration following nerve surgery: a perspective on ultrasound treatment for nerve injuries

Neural Regeneration Research, 2018
Nerve injury is often associated with limited axonal regeneration and thus leads to delayed or incomplete axonal reinnervation. As a consequence of slow nerve regeneration, target muscle function is often insufficient and leads to a lifelong burden ...
Konstantin D Bergmeister, Simeon C Daeschler, Patrick Rhodius, Philipp Schoenle, Arne Böcker, Ulrich Kneser, Leila Harhaus   +6 more
doaj   +1 more source

Viscoelastic HyA Hydrogel Promotes Recovery of Muscle Quality and Vascularization in a Murine Model of Delayed Rotator Cuff Repair

Advanced Healthcare Materials, EarlyView.
Rotator cuff tears, a common musculotendinous injury, often lead to permanent functional disability. A novel hyaluronic acid‐based hydrogel shows promise in promoting muscle regeneration after rotator cuff repair. The hydrogel reduces fibrosis, fatty infiltration, and muscle atrophy while supporting vascularization in a murine model.
Morgan R. Pfaff, Aboubacar Wague, Michael Davies, Anouk R. Killaars, Derek Ning, Steven Garcia, Anthony Nguyen, Prashant Nuthalapati, Mengyao Liu, Xuhui Liu, Brian T. Feeley, Kevin E. Healy   +11 more
wiley   +1 more source