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Total 25 results found since Jan 2013.

Stroke and Neurogenesis: Bridging Clinical Observations to New Mechanistic Insights from Animal Models
AbstractStroke was the 2nd leading cause of death and a major cause of morbidity. Unfortunately, there are limited means to promote neurological recovery post-stroke, but research has unearthed potential targets for therapies to encourage post-stroke neurogenesis and neuroplasticity. The occurrence of neurogenesis in adult mammalian brains, including humans, was not widely accepted until the 1990s. Now, adult neurogenesis has been extensively studied in human and mouse neurogenic brain niches, of which the subventricular zone of the lateral ventricles and subgranular zone of the dentate gyrus are best studied. Numerous oth...
Source: Translational Stroke Research - December 3, 2022 Category: Neurology Source Type: research

Human-Derived Hair Follicle Stem Cells and Hydrogen Sulfide on Focal Cerebral Ischemia Model: A Comparative Evaluation of Radiologic, Neurobehavioral and Immunohistochemical Results
In conclusion, intracerebral HFBSC treatment after 24 hour of ischemic stroke may be an effective way to reduce the cranial infarct volume, whereas H2S treatment alone or in combination with HFBSC may not be sufficient for ischemic brain injury.PMID:36410427 | DOI:10.1016/j.brainres.2022.148170
Source: Brain Research - November 21, 2022 Category: Neurology Authors: Cetin Genc Alican Tahta Ece Erdag Ilyas Dolas Selim Sahin Erdal Karaoz Yavuz Aras Pulat Akin Sabanci Source Type: research

Combination of indirect revascularization and endothelial progenitor cell transplantation improved cerebral perfusion and ameliorated tauopathy in a rat model of bilateral ICA ligation
CONCLUSION: The results of this study suggested that indirect revascularization ameliorated the cerebral ischemic changes. EPCs played a key role in augmenting the effect of indirect revascularization in the treatment of chronic cerebral ischemia.PMID:36371197 | DOI:10.1186/s13287-022-03196-1
Source: Cell Research - November 12, 2022 Category: Cytology Authors: Kuo-Chuan Wang Ling-Yu Yang Jing-Er Lee Vicent Wu Te-Fu Chen Sung-Tsang Hsieh Meng-Fai Kuo Source Type: research

Perfusion-guided endovascular super-selective intra-arterial infusion for treatment of malignant brain tumors
Conclusions This technique of perfusion guided-ESIA injections (PG-ESIA) enhances our ability to perform targeted super-selective delivery of therapeutic agents for brain tumors.
Source: Journal of NeuroInterventional Surgery - May 13, 2022 Category: Neurosurgery Authors: Chen, S. R., Chen, M. M., Ene, C., Lang, F. F., Kan, P. Tags: Editor''s choice New devices and techniques Source Type: research

Modeling ischemic stroke in a triculture neurovascular unit on-a-chip
ConclusionsThe NVU on-a-chip model presented here can be used for fundamental studies of NVU function in stroke and other neurological diseases and for investigation of potential restorative therapies to fight neurological disorders. Due to the platform ’s relatively high throughput and compatibility with automation, the model holds potential for drug compound screening.
Source: Fluids and Barriers of the CNS - December 14, 2021 Category: Neuroscience Source Type: research

Human placenta mesenchymal stem cell protection in ischemic stroke is Angiotensin converting enzyme ‐2 (ACE‐2) and masR receptor dependent
In this study we demonstrated that hPMSC-derived ACE2 is required to protect against progressive loss of cerebral blood perfusion following ischemic stroke. This effect is also mediated through vascular endothelial Mas receptor but not AT2 receptor. Consequently, the results of our experimental stroke studies with human derived stem cells describes new paracrine function of hPMSC in which ACE2 and Mas receptor are critical, therefore, providing a novel therapeutic strategy for stroke in near future.
Source: Stem Cells - June 15, 2021 Category: Stem Cells Authors: Mansoureh Barzegar, Shantel Vital, Karen Y. Stokes, Yuping Wang, J. Winny Yun, Luke A. White, Oleg Chernyshev, Roger E. Kelley, Jonathan S. Alexander Tags: Regenerative Medicine Source Type: research

Bone marrow ‐derived myeloid progenitors in the leptomeninges of adult mice
This study identified a heterogeneous population of myeloid progenitors in the leptomeninges of adult mice, which gave rise to all major myelo ‐erythroid lineages in clonogenic assays. Lineage tracing and bone marrow transplantation showed that the progenitors were derived from adult hematopoietic stem cells and most likely continuously replaced via cell trafficking. Their numbers were diminished in the context of neuroinflammation. AbstractAlthough the bone marrow contains most hematopoietic activity during adulthood, hematopoietic stem and progenitor cells can be recovered from various extramedullary sites. Cells with ...
Source: Stem Cells - December 11, 2020 Category: Stem Cells Authors: Tobias Koeniger, Luisa Bell, Anika Mifka, Michael Enders, Valentin Hautmann, Subba Rao Mekala, Philipp Kirchner, Arif B. Ekici, Christian Schulz, Philipp W örsdörfer, Stine Mencl, Christoph Kleinschnitz, Süleyman Ergün, Stefanie Kuerten Tags: Tissue ‐Specific Stem Cells Source Type: research

Potential Applications of Remote Limb Ischemic Conditioning for Chronic Cerebral Circulation Insufficiency
Conclusion Due to its long-term and often invisible course, CCCI has received less attention than acute cerebral ischemic stroke. However, without appropriate intervention, CCCI may lead to a variety of adverse events. Because the pathophysiological changes associated with CCCI are complex, pharmacological research in this area has been disappointing. Recent research suggests that RLIC, which is less invasive and more well-tolerated than drug treatment, can activate endogenous protective mechanisms during CCCI. In the present report, we reviewed studies related to CCCI (Table 1), as well as those related to stroke and sta...
Source: Frontiers in Neurology - May 2, 2019 Category: Neurology Source Type: research

Challenge to the Intestinal Mucosa During Sepsis
Conclusion The impact of sepsis on the gut is manifold, e.g., sepsis mediated alteration of the gut-blood barrier and increase in the intestinal permeability, which may correlate with the phenomena of bacterial translocation and lymphatic activation (“toxic-lymph”). Systemic consequences of sepsis are widespread and concern to the coagulative system, the microbiome as well as enzymes, such as pancreatic proteases, MMPs and IAPs. Nevertheless, the therapeutic approaches for modulating the mucosal immune system are still rarely effective in daily routine. Recent published studies showing that treatment with ...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research

Pentraxin 3 in Cardiovascular Disease
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1 1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy 2Humanitas Clinical and Research Center-IRCCS, Milan, Italy 3Humanitas University, Milan, Italy 4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - April 16, 2019 Category: Allergy & Immunology Source Type: research

Combining Human Umbilical Cord Blood Cells With Erythropoietin Enhances Angiogenesis/Neurogenesis and Behavioral Recovery After Stroke
In conclusion, our results suggest that hUCBC infusion in combination with EPO administration demonstrates therapeutic efficacy in the treatment of stroke-induced injury by promoting neurogenesis and angiogenesis. Further research that delineates the therapeutic mechanism of systemically administered hUCBC and EPO is required. Ethics Statement All experimental procedures involving animals were performed in accordance with the Guide for the Care and Use of Laboratory Animals as adopted and promulgated by the U. S. National Institutes of Health and were approved by CHA University Institutional Animal Care & Use Com...
Source: Frontiers in Neurology - April 9, 2019 Category: Neurology Source Type: research

Effects of Normothermic Machine Perfusion Conditions on Mesenchymal Stromal Cells
In this study the effect of NMP perfusion fluid on survival, metabolism and function of thawed cryopreserved human (h)MSC and porcine (p)MSC in suspension conditions was studied. Suspension conditions reduced the viability of pMSC by 40% in both perfusion fluid and culture medium. Viability of hMSC was reduced by suspension conditions by 15% in perfusion fluid, whilst no differences were found in survival in culture medium. Under adherent conditions, survival of the cells was not affected by perfusion fluid. The perfusion fluid did not affect survival of fresh MSC in suspension compared to the control culture medium. The f...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research