Injectable recombinant block polymer gel for sustained delivery of therapeutic protein in post traumatic osteoarthritis

Biomaterials ◽  
2022 ◽  
pp. 121370
Author(s):  
Priya Katyal ◽  
Aubryanna Hettinghouse ◽  
Michael Meleties ◽  
Sadaf Hasan ◽  
Changhong Chen ◽  
...  
2021 ◽  
Vol 22 (15) ◽  
pp. 8005
Author(s):  
Christine M. Khella ◽  
Judith M. Horvath ◽  
Rojiar Asgarian ◽  
Bernd Rolauffs ◽  
Melanie L. Hart

Inflammation plays a central role in the pathogenesis of knee PTOA after knee trauma. While a comprehensive therapy capable of preventing or delaying post-traumatic osteoarthritis (PTOA) progression after knee joint injury does not yet clinically exist, current literature suggests that certain aspects of early post-traumatic pathology of the knee joint may be prevented or delayed by anti-inflammatory therapeutic interventions. We discuss multifaceted therapeutic approaches that may be capable of effectively reducing the continuous cycle of inflammation and concomitant processes that lead to cartilage degradation as well as those that can simultaneously promote intrinsic repair processes. Within this context, we focus on early disease prevention, the optimal timeframe of treatment and possible long-lasting sustained delivery local modes of treatments that could prevent knee joint-associated PTOA symptoms. Specifically, we identify anti-inflammatory candidates that are not only anti-inflammatory but also anti-degenerative, anti-apoptotic and pro-regenerative.


Author(s):  
J. A. N. Zasadzinski ◽  
R. K. Prud'homme

The rheological and mechanical properties of crosslinked polymer gels arise from the structure of the gel network. In turn, the structure of the gel network results from: thermodynamically determined interactions between the polymer chain segments, the interactions of the crosslinking metal ion with the polymer, and the deformation history of the network. Interpretations of mechanical and rheological measurements on polymer gels invariably begin with a conceptual model of,the microstructure of the gel network derived from polymer kinetic theory. In the present work, we use freeze-etch replication TEM to image the polymer network morphology of titanium crosslinked hydroxypropyl guars in an attempt to directly relate macroscopic phenomena with network structure.


2009 ◽  
pp. 090624002829090
Author(s):  
Tristan P. Learoyd ◽  
Jane L. Burrows ◽  
Eddie French ◽  
Peter C. Seville

1991 ◽  
Vol 36 (7) ◽  
pp. 641-641
Author(s):  
No authorship indicated

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