User profiles for Piotr Walczak
Piotr Walczak, MD/PhDUniversity of Maryland Baltimore Verified email at som.umaryland.edu Cited by 10311 |
Dynamic imaging of allogeneic mesenchymal stem cells trafficking to myocardial infarction
Background— Recent results from animal studies suggest that stem cells may be able to
home to sites of myocardial injury to assist in tissue regeneration. However, the histological …
home to sites of myocardial injury to assist in tissue regeneration. However, the histological …
Dual-modality monitoring of targeted intraarterial delivery of mesenchymal stem cells after transient ischemia
Background and Purpose— In animal models of stroke, functional improvement has been
obtained after stem cell transplantation. Successful therapy depends largely on achieving a …
obtained after stem cell transplantation. Successful therapy depends largely on achieving a …
Tracking stem cells using magnetic nanoparticles
SM Cromer Berman, P Walczak… - Wiley Interdisciplinary …, 2011 - Wiley Online Library
Stem cell therapies offer great promise for many diseases, especially those without current
effective treatments. It is believed that noninvasive imaging techniques, which offer the ability …
effective treatments. It is believed that noninvasive imaging techniques, which offer the ability …
Artificial reporter gene providing MRI contrast based on proton exchange
Existing magnetic resonance reporter genes all rely on the presence of (super)paramagnetic
substances and employ water relaxation to gain contrast. We designed a nonmetallic, …
substances and employ water relaxation to gain contrast. We designed a nonmetallic, …
Magnetic resonance–guided, real-time targeted delivery and imaging of magnetocapsules immunoprotecting pancreatic islet cells
In type I diabetes mellitus, islet transplantation provides a moment-to-moment fine regulation
of insulin. Success rates vary widely, however, necessitating suitable methods to monitor …
of insulin. Success rates vary widely, however, necessitating suitable methods to monitor …
MRI-detectable pH nanosensors incorporated into hydrogels for in vivo sensing of transplanted-cell viability
Biocompatible nanomaterials and hydrogels have become an important tool for improving
cell-based therapies by promoting cell survival and protecting cell transplants from immune …
cell-based therapies by promoting cell survival and protecting cell transplants from immune …
In vivo “hot spot” MR imaging of neural stem cells using fluorinated nanoparticles
J Ruiz‐Cabello, P Walczak… - … in Medicine: An …, 2008 - Wiley Online Library
To optimize 19 F MR tracking of stem cells, we compared cellular internalization of cationic
and anionic perfluoro‐15‐crown‐5‐ether (PFCE) nanoparticles using cell culture plates with …
and anionic perfluoro‐15‐crown‐5‐ether (PFCE) nanoparticles using cell culture plates with …
MR tracking of transplanted cells with “positive contrast” using manganese oxide nanoparticles
Rat glioma cells were labeled using electroporation with either manganese oxide (MnO) or
superparamagnetic iron oxide (SPIO) nanoparticles. The viability and proliferation of SPIO‐…
superparamagnetic iron oxide (SPIO) nanoparticles. The viability and proliferation of SPIO‐…
[HTML][HTML] The cerebral embolism evoked by intra-arterial delivery of allogeneic bone marrow mesenchymal stem cells in rats is related to cell dose and infusion velocity
…, A Nowakowski, M Janowski, P Walczak… - Stem Cell Research & …, 2015 - Springer
Introduction Intra-arterial cell infusion is an efficient delivery route with which to target
organs such as the ischemic brain. However, adverse events including microembolisms and …
organs such as the ischemic brain. However, adverse events including microembolisms and …
Magnetic particle imaging for real-time perfusion imaging in acute stroke
The fast and accurate assessment of cerebral perfusion is fundamental for the diagnosis and
successful treatment of stroke patients. Magnetic particle imaging (MPI) is a new radiation-…
successful treatment of stroke patients. Magnetic particle imaging (MPI) is a new radiation-…