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1.
Journal of Medical Biomechanics ; (6): E465-E471, 2021.
Article in Chinese | WPRIM | ID: wpr-904425

ABSTRACT

Prosthetic loosening and periprosthetic inflammation, as serious complications after joint replacement surgery, often require the secondary surgery for repair, which is easy to adversely affect the physical/mental health and economic status of patients.Studies have shown that the functional phenotype expressed by macrophages by different stimuli, namely macrophage polarization state, prolonged M1 polarization can lead to the continuation of long-term inflammation, while timely and effective M2 macrophage phenotype will lead to enhanced osteogenesis and tissue remodeling cytokine secretion and subsequent osseointegration, which play a crucial role in the development and outcome of prosthetic loosening and periprosthetic inflammation.The local micro-environment of extracellular matrix (ECM) is an important factor in the activation, migration, proliferation and fusion of macrophages. Researchers have deeply understood it mainly through the crosstalk between surface properties of biomaterials and macrophages. As an effector cell, macro-phages can perform complex spatiotemporal cellular functional responses by sensing the physical and chemical environment (surface topography, wettability, chemical composition, biological proteins) represented by surface properties of biomaterials.This paper summarizes the recent findings on macrophage polarization and material surface properties.

2.
Article in Chinese | WPRIM | ID: wpr-869182

ABSTRACT

Anti-thyroid drug (ATD), radioactive iodine (RAI) and thyroidectomy are treatment options for Graves disease (GD). Treatment strategies for Graves ophthalmopathy (GO) patients include thyroid function control, oral or intravenous corticosteroids, orbital radiotherapy or orbital decompression surgery. However, current treatments for GD and GO are also less ideal because they target the signs and symptoms rather than the pathogenic mechanisms. The development of treatment strategies that targeting the thyroid-stimulating hormone receptor (TSHR) or insulin-like growth factor 1 receptor (IGF-1R) alone or in combination may yield effective and better tolerated treatments for GD and GO. This paper reviews the progress and limitations of the 2 methods.

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