Abstract:
:During in vivo intracerebral infusions, the ability to perform accurate targeting towards a 3D-specific point allows control of the anatomical variable and identification of the effects of variations in other factors. Intraoperative MRI navigation systems are currently being used in the clinic, yet their use in nonhuman primates and MRI monitoring of intracerebral infusions has not been reported. In this study rhesus monkeys were placed in a MRI-compatible stereotaxic frame. T1 MRIs in the three planes were obtained in a 3.0T GE scanner to identify the target and plan the trajectory to ventral postcommisural putamen. A craniotomy was performed under sterile surgical conditions at the trajectory entry point. A modified MRI-compatible trajectory guide base (Medtronic Inc.) was secured above the cranial opening and the alignment stem applied. Scans were taken to define the position of the alignment stem. When the projection of the catheter in the three planes matched the desired trajectory to the target, the base was locked in position. A catheter replaced the alignment stem and was slowly introduced to the final target structure. Additional scans were performed to confirm trajectory and during the infusion of a solution of gadoteridol (ProHance, Bracco Diagnostics; 2 mM/L) and bromophenol blue (0.16 mg/ml) in saline. Monitoring of the pressure in the infusion lines was performed using pressure monitoring and infusion pump controller system (Engineering Resources Group Inc.) in combination with a MRI-compatible infusion pump (Harvard). MRI during infusion confirmed successful targeting and matched postmortem visualization of bromophenol blue. Assessment of the accuracy of the targeting revealed an overall 3D mean ± SD distance error of 1.2 ± 0.6 mm and angular distance error of 0.9 ± 0.5 mm. Our results in nonhuman primates confirm the accuracy of intraoperative MRI intracerebral navigation combined with an adaptable, pivot point-based targeting system and validates its use for preclinical intracerebral procedures.
journal_name
Cell Transplantjournal_title
Cell transplantationauthors
Emborg ME,Joers V,Fisher R,Brunner K,Carter V,Ross C,Raghavan R,Brady M,Raschke J,Kubota K,Alexander Adoi
10.3727/096368910X514323subject
Has Abstractpub_date
2010-01-01 00:00:00pages
1587-97issue
12eissn
0963-6897issn
1555-3892pii
ct2340emborgjournal_volume
19pub_type
杂志文章abstract::Prognosis of patients with heart failure remains poor despite improved conventional and interventional treatment regimens. The improvement of neovascularization and repair processes by administration of bone marrow-derived cells modestly improved the recovery after acute myocardial infarction. However, circulating pat...
journal_title:Cell transplantation
pub_type: 杂志文章,随机对照试验
doi:10.3727/096368912X654957
更新日期:2012-01-01 00:00:00
abstract::We have recently documented that oral Linomide (quinoline-3-carboxamide) prevents autoimmune insulitis, islet destruction, and diabetes in NOD mice treated at an early stage (5 wk of age) of the disease. In this report, we show that treatment of female NOD mice with advanced disease (age 23-24 wk) by syngeneic islet t...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/s0963-6897(96)00085-1
更新日期:1996-11-01 00:00:00
abstract::Hepatocyte transplantation is a promising therapy for acute liver failure in humans. Recently, we succeeded in inducing various acute and chronic liver failures in nude mice. Engraftment of transplanted xenogeneic rat hepatocytes, visualized in the host liver by anti-MHC class I immunohistochemistry, revealed that liv...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368908785096051
更新日期:2008-01-01 00:00:00
abstract::Traumatic brain injury (TBI), a major contributor to deaths and permanent disability worldwide, has been recently described as a progressive cell death process rather than an acute event. TBI pathophysiology is complicated and can be distinguished by the initial primary injury and the subsequent secondary injury that ...
journal_title:Cell transplantation
pub_type: 杂志文章,评审
doi:10.3727/096368915X686913
更新日期:2015-01-01 00:00:00
abstract::The biohybrid artificial pancreas is designed to enclose pancreatic tissues with a selectively permeable membrane that immunoisolates the graft from the host immune system, allowing those endocrine tissues to survive and control glucose metabolism for an extended period of time. The pancreatic B cell line MIN6 is esta...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/s0963-6897(97)00074-2
更新日期:1997-09-01 00:00:00
abstract::Spinal cord injury (SCI) causes loss of neural functions below the level of the lesion due to interruption of spinal pathways and secondary neurodegenerative processes. The transplant of neural stem cells (NSCs) is a promising approach for the repair of SCI. Reprogramming of adult somatic cells into induced pluripoten...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368916X691312
更新日期:2016-10-01 00:00:00
abstract::Adequate regulation of glucose levels by a microencapsulated pancreatic islet graft requires a minute-to-minute regulation of blood glucose. To design such a transplant, it is mandatory to have sufficient insight in factors influencing the kinetics of insulin secretion by encapsulated islets. The present study investi...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000003108747226
更新日期:2003-01-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) hold great promise for bone regeneration. However, the power of mesenchymal stem cells has not been applied to structural bone allografts in clinical practice. This study designed a new strategy to enhance the efficiency of allografts for segmental bone regeneration. Isolated MSCs were cu...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368909788809839
更新日期:2009-01-01 00:00:00
abstract::Despite the high prevalence and devastating outcome, there remain a few options for treatment of ischemic stroke. Currently available treatments are limited by a short time window for treatment and marginal efficacy when used. We have tested a human umbilical cord blood-derived stem cell line that has been shown to re...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368916X691277
更新日期:2016-01-01 00:00:00
abstract::There are conflicting reports on the survival and immune reaction to allografts and xenografts of cultured skin substitutes (CSS). In this study, we investigated the allogeneic and xenogeneic responses to CSS of human keratinocytes and genetically engineered CSS expressing keratinocyte growth factor (KGF) that forms a...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000004783983594
更新日期:2004-01-01 00:00:00
abstract::The formation of a new microvasculature is essential for the long-term survival and function of the islet graft. In this study we examined endothelium of isolated pancreatic islets by stimulation with growth factors, different culture conditions, and genetic modification. We also inspected the effect of immunosuppress...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000006783981774
更新日期:2006-01-01 00:00:00
abstract::Autism spectrum disorders (ASDs) are heterogeneous complex neurodevelopmental pathologies defined by behavioral symptoms, but which have well-characterized genetic, immunological, and physiological comorbidities. Despite extensive research efforts, there are presently no agreed upon therapeutic approaches for either t...
journal_title:Cell transplantation
pub_type: 临床试验,杂志文章
doi:10.3727/096368914X684916
更新日期:2014-01-01 00:00:00
abstract::Superparamagnetic iron oxide nanoparticles (MNPs) together with magnetic resonance imaging (MRI) are the preferred tools for monitoring the fate and biodistribution of administered cells in stem cell therapy studies. Commercial MNPs need transfection agents and long incubation times for sufficient cell labeling and fu...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368916X691303
更新日期:2016-10-01 00:00:00
abstract::Persistent fetal vasculature (PFV) is a potentially serious developmental anomaly in human eyes, which results from a failure of the primary vitreous and the hyaloid vascular systems to regress during development. Recent findings from our laboratory indicate that fibrovascular membranes harvested from subjects with P...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368912X647153
更新日期:2012-01-01 00:00:00
abstract::Peripheral blood samples from HIV-seropositive individuals enrolled in a pilot clinical trial investigating the use of allogeneic dendritic cell therapy were evaluated for mixed chimerism. In this study, dendritic cells from HLA-identical, HIV-seronegative siblings were used. Patients received an infusion of dendritic...
journal_title:Cell transplantation
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2000-05-01 00:00:00
abstract::Hepatocyte transplantation (HT) has become an effective therapy for patients with metabolic inborn errors. We report the clinical outcome of four children with metabolic inborn errors that underwent HT, describing the cell infusion protocol and the metabolic outcome of transplanted patients. Cryopreserved hepatocytes...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368912X637505
更新日期:2012-01-01 00:00:00
abstract::The revascularization of islets of Langerhans transplanted in heterotopic sites like the liver by portal vein embolization or the renal subcapsular space is a major process necessary for the viability of grafted cells. This process has been extensively studied by different techniques and the results have shown that is...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/s0963-6897(97)00099-7
更新日期:1997-11-01 00:00:00
abstract::In previous studies we demonstrated that transplantation of microencapsulated hepatocytes could correct congenital hyperbilirubinemia in Gunn rats for 4 to 6 wks. Reduction in hyperbilirubinemia followed a single transplantation of isolated encapsulated hepatocytes (IEH). After 4 to 6 wks of transplantation IEH gradua...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368979200100404
更新日期:1992-01-01 00:00:00
abstract::New treatment paradigms that slow or reverse progression of chronic kidney disease (CKD) are needed to relieve significant patient and healthcare burdens. We have shown that a population of selected renal cells (SRCs) stabilized disease progression in a mass reduction model of CKD. Here, we further define the cellular...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368912X653237
更新日期:2013-01-01 00:00:00
abstract::There is conflicting evidence favoring both the use of human serum (HS) and of human serum albumin (HSA) in human islet culture. We evaluated the effects of HS versus HSA supplementation on 1) in vitro β-cell viability and function and 2) in vivo islet graft revascularization, islet viability, β-cell death, and metabo...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368915X688119
更新日期:2016-01-01 00:00:00
abstract::The third-generation NOD/LtSz-scid/IL2Rγ(null) (NOD/SCID IL2Rγ(null)) mouse represents a significantly improved xenograft model allowing high levels of human leukocyte engraftment over extended follow up. One remaining limitation of this mouse model, however, is the low level of circulating human erythrocytes. We esta...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X314161
更新日期:2010-01-01 00:00:00
abstract::The main purpose of this work has been to establish a new culturing technique to improve the chondrogenic commitment of isolated adult human chondrocytes, with the aim of being used during cell-based therapies or tissue engineering strategies. By using a rather novel technique to generate scaffold-free three-dimension...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368908786576499
更新日期:2008-01-01 00:00:00
abstract::Facioscapulohumeral muscular dystrophy (FSHD) is the third most frequent inherited myopathy. We previously demonstrated that mesoangioblasts can be efficiently isolated from FSHD muscles, although their differentiation ability into skeletal muscle was variably impaired. This correlates with overall disease severity a...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X546571
更新日期:2011-01-01 00:00:00
abstract::The transplantation of porcine islets of Langerhans to treat type 1 diabetes may provide a solution to the demand for insulin-producing cells. Porcine islets encapsulated in agarose-agarose macrobeads have been shown to function in nonimmunosuppressed xenogeneic models of both streptozotocin-induced and autoimmune typ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368913X667033
更新日期:2014-01-01 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) is a fatal disease of motor neuron degeneration in the brain and spinal cord. Progressive paralysis of the diaphragm and other respiratory muscles leading to respiratory dysfunction and failure is the most common cause of death in ALS patients. Respiratory impairment has also been s...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/0963689720913494
更新日期:2020-01-01 00:00:00
abstract::The midbrain inferior colliculus (IC), a major integrating center for auditory processing, provides a model for structural, functional, and behavioral recovery. The present study examined the role of IC in spatial sound detection, and the effects of neural transplantation in sparing of behavioral performance. Hooded r...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/0963-6897(95)02036-5
更新日期:1996-03-01 00:00:00
abstract::We investigated the effects of transplantation of CXCR4-overexpressing adipose tissue-derived stem cells (ADSCs) into a mouse diabetic hindlimb ischemia model on homing and engraftment as early as 48 h after transplant. CXCR4-overexpressing ADSCs were intramuscularly or intravenously injected into diabetic mice with h...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368916X692708
更新日期:2017-02-16 00:00:00
abstract::Critical length nerve defects in the rat sciatic nerve model were reconstructed with chitosan nerve guides filled with Schwann cells (SCs) containing hydrogel. The transplanted SCs were naive or had been genetically modified to overexpress neurotrophic factors, thus providing a cellular neurotrophic factor delivery sy...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368915X688010
更新日期:2016-01-01 00:00:00
abstract::Recently, oral mucosal epithelial cells were proposed as a cell source of the autologous cell transplant therapy for corneal trauma or disease. The question addressed is to know if the biological conditions of grafting could induce certain cellular, molecular, and genetic alterations that might increase the risk of mu...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X515854
更新日期:2010-01-01 00:00:00
abstract::It is difficult to normalize plasma glucose for a prolonged period of time by s.c. injection in experimental animals. The goal of this study was to determine the feasibility and the dosage of insulin needed to maintain 24-h normoglycemia in streptozotocin-diabetic Syrian hamsters with a s.c.-implanted osmotic minipump...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368979900800511
更新日期:1999-09-01 00:00:00