Shortwave infrared fluorescence in vivo imaging of nerves for minimizing the risk of intraoperative nerve injury

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 19736-19741 ◽  
Author(s):  
Heng Xu ◽  
Jun Chen ◽  
Zhujun Feng ◽  
Kan Fu ◽  
Yusen Qiao ◽  
...  
Keyword(s):  
Real Time ◽  
Nerve Injury ◽  
In Vivo Imaging ◽  
Peripheral Nerves ◽  
Imaging Agent ◽  
Nerve Injuries ◽  
Agent Based ◽  
Long Time ◽  
Shortwave Infrared

A novel nerve specific imaging agent based on SWIR QD-based in vivo imaging can markedly minimize the risk of iatrogenic nerve injuries during surgeries by providing real-time and long-time SWIR images of peripheral nerves in specific.

scholarly journals Shortwave infrared polymethine fluorophores matched to excitation lasers enable non-invasive, multicolour in vivo imaging in real time

2020 ◽  
Vol 12 (12) ◽  
pp. 1123-1130
Author(s):  
Emily D. Cosco ◽  
Anthony L. Spearman ◽  
Shyam Ramakrishnan ◽  
Jakob G. P. Lingg ◽  
Mara Saccomano ◽  
...  
Keyword(s):  
Real Time ◽  
In Vivo Imaging ◽  
Non Invasive ◽  
Shortwave Infrared

scholarly journals Cyr61 promotes Schwann cell proliferation and migration via αvβ3 integrin

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Zhenghui Cheng ◽  
Yawen Zhang ◽  
Yinchao Tian ◽  
Yuhan Chen ◽  
Fei Ding ◽  
...  
Keyword(s):  
Nerve Injury ◽  
Peripheral Nerves ◽  
Molecular Mechanisms ◽  
Αvβ3 Integrin ◽  
Promoting Effect ◽  
Ccn Family ◽  
And Migration ◽  
Proliferation And Migration

Abstract Background Schwann cells (SCs) play a crucial role in the repair of peripheral nerves. This is due to their ability to proliferate, migrate, and provide trophic support to axon regrowth. During peripheral nerve injury, SCs de-differentiate and reprogram to gain the ability to repair nerves. Cysteine-rich 61 (Cyr61/CCN1) is a member of the CCN family of matrix cell proteins and have been reported to be abundant in the secretome of repair mediating SCs. In this study we investigate the function of Cyr61 in SCs. Results We observed Cyr61 was expressed both in vivo and in vitro. The promoting effect of Cyr61 on SC proliferation and migration was through autocrine and paracrine mechanisms. SCs expressed αvβ3 integrin and the effect of Cyr61 on SC proliferation and migration could be blocked via αvβ3 integrin. Cyr61 could influence c-Jun protein expression in cultured SCs. Conclusions In this study, we found that Cyr61 promotes SC proliferation and migration via αvβ3 integrin and regulates c-Jun expression. Our study contributes to the understanding of cellular and molecular mechanisms underlying SC’s function during nerve injury, and thus, may facilitate the regeneration of peripheral nerves after injury.

In vivo imaging of early stage apoptosis by measuring real-time caspase-3/7 activation

APOPTOSIS ◽  
2010 ◽  
Vol 16 (2) ◽  
pp. 198-207 ◽  
Author(s):  
Matteo Scabini ◽  
Fabio Stellari ◽  
Paolo Cappella ◽  
Sara Rizzitano ◽  
Gemma Texido ◽  
...  
Keyword(s):  
Real Time ◽  
In Vivo Imaging ◽  
Caspase 3 ◽  
Early Stage

2021 Frank Stinchfield Award: A novel cemented hip hemiarthroplasty infection model with real-time in vivo imaging in rats

2021 ◽  
Vol 103-B (7 Supple B) ◽  
pp. 9-16
Author(s):  
William J. Hadden ◽  
Mazen Ibrahim ◽  
Mariam Taha ◽  
Kerstin Ure ◽  
Yun Liu ◽  
...  
Keyword(s):  
Real Time ◽  
In Vivo Imaging ◽  
Biofilm Formation ◽  
Joint Infection ◽  
Volumetric Analysis ◽  
In Vivo Model ◽  
Infection Model ◽  
Sprague Dawley ◽  
Hip Hemiarthroplasty

Aims The aims of this study were to develop an in vivo model of periprosthetic joint infection (PJI) in cemented hip hemiarthroplasty, and to monitor infection and biofilm formation in real-time. Methods Sprague-Dawley rats underwent cemented hip hemiarthroplasty via the posterior approach with pre- and postoperative gait assessments. Infection with Staphylococcus aureus Xen36 was monitored with in vivo photoluminescent imaging in real-time. Pre- and postoperative gait analyses were performed and compared. Postmortem micro (m) CT was used to assess implant integration; field emission scanning electron microscopy (FE-SEM) was used to assess biofilm formation on prosthetic surfaces. Results All animals tolerated surgery well, with preservation of gait mechanics and weightbearing in control individuals. Postoperative in vivo imaging demonstrated predictable evolution of infection with logarithmic signal decay coinciding with abscess formation. Postmortem mCT qualitative volumetric analysis showed high contact area and both cement-bone and cement-implant interdigitation. FE-SEM revealed biofilm formation on the prosthetic head. Conclusion This study demonstrates the utility of a new, high-fidelity model of in vivo PJI using cemented hip hemiarthroplasty in rats. Inoculation with bioluminescent bacteria allows for non-invasive, real-time monitoring of infection. Cite this article: Bone Joint J 2021;103-B(7 Supple B):9–16.

Real-time in vivo imaging of transgenic bioluminescent blood stages of rodent malaria parasites in mice

2006 ◽  
Vol 1 (1) ◽  
pp. 476-485 ◽  
Author(s):  
Blandine Franke-Fayard ◽  
Andrew P Waters ◽  
Chris J Janse
Keyword(s):  
Real Time ◽  
In Vivo Imaging ◽  
Malaria Parasites ◽  
Rodent Malaria

scholarly journals Real-time in vivo imaging of regional lung function in a mouse model of cystic fibrosis on a laboratory X-ray source

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Rhiannon P. Murrie ◽  
Freda Werdiger ◽  
Martin Donnelley ◽  
Yu-wei Lin ◽  
Richard P. Carnibella ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Lung Function ◽  
Mouse Model ◽  
Real Time ◽  
In Vivo Imaging ◽  
X Ray ◽  
Regional Lung Function ◽  
Regional Lung

Real-time in vivo imaging by high-speed spectral optical coherence tomography

2003 ◽  
Vol 28 (19) ◽  
pp. 1745 ◽  
Author(s):  
Maciej Wojtkowski ◽  
Tomasz Bajraszewski ◽  
Piotr Targowski ◽  
Andrzej Kowalczyk
Keyword(s):  
Optical Coherence Tomography ◽  
Real Time ◽  
In Vivo Imaging ◽  
High Speed ◽  
Optical Coherence ◽  
Spectral Optical Coherence Tomography

scholarly journals Real-Time In Vivo Imaging Reveals the Ability of Monocytes to Clear Vascular Amyloid Beta

Cell Reports ◽  
2013 ◽  
Vol 5 (3) ◽  
pp. 646-653 ◽  
Author(s):  
Jean-Philippe Michaud ◽  
Marc-André Bellavance ◽  
Paul Préfontaine ◽  
Serge Rivest
Keyword(s):  
Real Time ◽  
Amyloid Beta ◽  
In Vivo Imaging
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