Abstract:
:The magic angle effect increases the MRI signal of healthy tendon tissue and could be used for more detailed evaluation of tendon structure. Furthermore, it could support the discrimination of hypointense artefacts induced by contrast agents such as superparamagnetic iron oxide used for cell tracking. However, magic angle MRI of the equine superficial digital flexor tendon has not been accomplished in vivo in standing low-field MRI so far. The aim of this in vivo study was to evaluate the practicability of this magic angle technique and its benefit for tracking superparamagnetic iron oxide-labelled multipotent mesenchymal stromal cells. Six horses with induced tendinopathy in their forelimb superficial digital flexor tendons were injected locally either with superparamagnetic iron oxide-labelled multipotent mesenchymal stromal cells or serum. MRI included standard and magic angle image series in T1- and T2∗-weighted sequences performed at regular intervals. Image analysis comprised blinded evaluation and quantitative assessment of signal-to-noise ratio. The magic angle technique enhanced the tendon signal-to-noise ratio (P < 0.001). Hypointense artefacts were observable in the cell-injected superficial digital flexor tendons over 24 weeks and artefact signal-to-noise ratio differed significantly from tendon signal-to-noise ratio in the magic angle images (P < 0.001). Magic angle imaging of the equine superficial digital flexor tendon is feasible in standing low-field MRI. The current data demonstrate that the technique improves discrimination of superparamagnetic iron oxide-induced artefacts from the surrounding tendon tissue.
journal_name
Stem Cells Intjournal_title
Stem cells internationalauthors
Horstmeier C,Ahrberg AB,Berner D,Burk J,Gittel C,Hillmann A,Offhaus J,Brehm Wdoi
10.1155/2019/5670106subject
Has Abstractpub_date
2019-12-17 00:00:00pages
5670106eissn
1687-966Xissn
1687-9678journal_volume
2019pub_type
杂志文章abstract::Glioblastoma multiforme (GBM) is the most aggressive malignant brain tumor and a subpopulation of glioma stem-like cells (GSCs) is likely responsible for the invariable recurrence following maximum resection and chemoradiotherapy. As most GSCs that are located in the perivascular and perinecrotic niches should be remo...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/5387041
更新日期:2018-08-23 00:00:00
abstract::Embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) are characterized by their unique capacity to stepwise differentiate towards any particular cell type in an adult organism. Pluripotent stem cells provide a beneficial platform to model hereditary diseases and even cancer development. While the inc...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2019/9301382
更新日期:2019-02-25 00:00:00
abstract::Ischemic heart disease affects a majority of people, especially elderly patients. Recent studies have utilized autologous adult stem/progenitor cells as a treatment option to heal cardiac tissue after myocardial infarction. However, donor cells from aging patients are more likely to be in a senescent stage. Rejuvenati...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/9308301
更新日期:2018-03-29 00:00:00
abstract::Mesenchymal stem cells (MSCs) are a reliable source for cell-based regenerative medicine owing to their multipotency and biological functions. However, aging-induced systemic homeostasis disorders in vivo and cell culture passaging in vitro induce a functional decline of MSCs, switching MSCs to a senescent status with...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2020/8836258
更新日期:2020-09-10 00:00:00
abstract::[This corrects the article DOI: 10.1155/2015/496512.]. ...
journal_title:Stem cells international
pub_type: 已发布勘误
doi:10.1155/2016/7958361
更新日期:2016-01-01 00:00:00
abstract::Cardiac progenitor cells (CPCs) have rapidly advanced to clinical trials, yet little is known regarding their interaction with the microenvironment. Signaling cues present in the microenvironment change with development and disease. This work aims to assess the influence of two distinct signaling moieties on CPCs: cyc...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/8364382
更新日期:2016-01-01 00:00:00
abstract::Human mesenchymal stem cells derived from the umbilical cord (UC) are a favorable source for allogeneic cell therapy. Here, we successfully isolated the stem cells derived from three different compartments of the human UC, including perivascular stem cells derived from umbilical arteries (UCA-PSCs), perivascular stem ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3175748
更新日期:2017-01-01 00:00:00
abstract::The cornea is a clear structure, void of blood, and lymphatic vessels, functioning as our window to the world. Limbal epithelial stem cells, occupying the area between avascular cornea and vascularized conjunctiva, have been implicated in tissue border maintenance, preventing conjunctivalisation and propagation of blo...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/8620172
更新日期:2018-05-08 00:00:00
abstract::Following the discovery of pluripotent stem (PS) cells such as embryonic stem (ES) and induced pluripotent stem (iPS) cells, there has been a great hope that injured tissues can be repaired by transplantation of ES/iPS-derived various specific types of cells such as neural stem cells (NSCs). Although PS cells can be i...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2015/630693
更新日期:2015-01-01 00:00:00
abstract::There are remarkable similarities in the description of cancer stem cells (CSCs) and cancer cells with mesenchymal phenotype. Both cell types are highly tumorigenic, resistant against common anticancer treatment, and thought to cause metastatic growth. Moreover, cancer cells are able to switch between CSC and non-CSC ...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/4516454
更新日期:2018-10-10 00:00:00
abstract::The calcined tooth powder (CTP), a type of allogeneic biomimetic mineralized material, has been confirmed that can promote new bone formation when obtained at high temperature. The aim of this study was to investigate effects of the conditioned medium of calcined tooth powder (CTP-CM) on the osteogenic and odontogenic...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/4793518
更新日期:2019-03-19 00:00:00
abstract::Delayed administration of kallikrein after cerebral infarction can improve neurological function. However, the appropriate kallkrein treatment time after ischemic stroke has not been illuminated. In this study, we compared the long-term outcome among three kallikrein therapeutic regimens starting at different time poi...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/1706982
更新日期:2018-04-05 00:00:00
abstract::Mesenchymal stem cells (MSCs) are multipotent stem cells characterized by self-renewal, production of clonal cell populations, and multilineage differentiation. They exist in nearly all tissues and play a significant role in tissue repair and regeneration. Additionally, MSCs possess wide immunoregulatory properties vi...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/3057624
更新日期:2018-06-14 00:00:00
abstract::Evidences have supported the pivotal roles of stem cells in mammary gland development. Many molecular markers have been identified to characterize mammary stem cells. Cellular fate mapping of mammary stem cells by lineage tracing has put unprecedented insights into the mammary stem cell biology, which identified two s...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2019/4247168
更新日期:2019-01-08 00:00:00
abstract::Infections of emerging and reemerging viruses (SARS-CoVs, influenza H1N1, etc.) largely and globally affect human health. Animal models often fail to reflect a physiological status because of species tropism of virus infection. Conventional cell lines are usually genetically and phenotypically different from primary c...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/2421689
更新日期:2020-07-09 00:00:00
abstract::Damage to the nervous system can cause devastating diseases or musculoskeletal dysfunctions and transplantation of progenitor stem cells can be an excellent treatment option in this regard. Preclinical studies demonstrate that untreated stem cells, unlike stem cells activated to differentiate into neuronal lineage, do...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/1035374
更新日期:2016-01-01 00:00:00
abstract:Background:Ly6Chigh monocytes are inflammatory cells that accumulate in an infarcted myocardium, and Ly6Clow monocytes are believed to be reparative and curb myocardial remodeling. NR4A1 is a novel target for modulating the inflammatory phenotype of monocytes during atherogenesis. Objectives:We aimed to investigate wh...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/2460158
更新日期:2020-01-13 00:00:00
abstract::We aim to investigate the effects of adipose-derived stem cells (ASCs) transplantation on irradiation-induced skeletal muscle fibrosis. Sixty-four rabbits were randomly divided into ASCs group and PBS group followed by irradiation at unilateral hip with a single dose of 80 Gy. Nonirradiated side with normal skeletal m...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/5638204
更新日期:2016-01-01 00:00:00
abstract::A novel severe acute respiratory syndrome coronavirus (SARS-CoV-2) causing lethal acute respiratory disease emerged in December 2019. The World Health Organization named this disease "COVID-19" and declared it a pandemic on March 11, 2020. Many studies have shown that mesenchymal stem cells (MSCs) and their exosomes (...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2020/8835986
更新日期:2020-09-24 00:00:00
abstract::The use of Mesenchymal Stromal Cells (MSCs) aiming to treat cancer has shown very contradictory results. In an attempt to clarify the contradictory results reported in the literature and the possible role of human fallopian tube Mesenchymal Stromal Cells (htMSCs) against breast cancer, the aim of this study was to eva...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/796215
更新日期:2015-01-01 00:00:00
abstract::A previous study reported the structural characterization of biogenic apatite (BAp) thin films realized by a pulsed electron deposition system by ablation of deproteinized bovine bone. Thin films annealed at 400°C exhibited composition and crystallinity degree very close to those of biogenic apatite; this affinity is ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3579283
更新日期:2017-01-01 00:00:00
abstract::Endometriosis is an inflammatory disease with predominance of immunosuppressive M2 macrophages in the pelvic cavity that could be involved in the pathology through support and immune escape of ectopic lesions. Mesenchymal stromal cells (MSC) are found in ectopic lesions, and MSC from nonendometriosis sources are known...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3215962
更新日期:2017-01-01 00:00:00
abstract::The latest research achievements in the field of stem cells led in 2016 to the publication of "Guidelines for Stem Cell Research and Clinical Translation" by the International Society for Stem Cell Research (ISSCR). Updating the topics covered in previous publications, the new recommendations offer interesting ethical...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2017/5080259
更新日期:2017-01-01 00:00:00
abstract::The implantation of stem cells in vivo is the ideal approach for the restoration of normal life functions, such as replenishing the decreasing levels of affected dopaminergic (DA) neurons during neurodegenerative disease conditions. However, combining stem cells with biomaterial scaffolds provides a promising strategy...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/3410168
更新日期:2018-06-03 00:00:00
abstract::The purpose of this study is to determine if patients with chronic patellar tendinopathy will improve clinically after the inoculation of bone marrow mononuclear cells (BM-MNCs). Eight patients with chronic patellar tendinopathy were included. Patients averaged 24 years old (range 14-35). All patients were refractory ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2012/953510
更新日期:2012-01-01 00:00:00
abstract::Metabolism is central to embryonic stem cell (ESC) pluripotency and differentiation, with distinct profiles apparent under different nutrient milieu, and conditions that maintain alternate cell states. The significance of altered nutrient availability, particularly oxygen, and metabolic pathway activity has been highl...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2017/2874283
更新日期:2017-01-01 00:00:00
abstract::Human bone marrow mesenchymal stem cells (hBM-MSCs) are the best characterized multipotent adult stem cells. Their self-renewal capacity, multilineage differentiation potential, and immunomodulatory properties have indicated that they can be used in many clinical therapies. In a previous work we studied the DNA methyl...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/5656701
更新日期:2016-01-01 00:00:00
abstract::Two of the main problems of stem cell and regenerative medicine are the exit of pluripotency and differentiation to functional cells or tissues. The answer to these two problems holds great value in the clinical translation of stem cell as well as regenerative medicine research. Although piling researches have reveale...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/8483035
更新日期:2020-02-03 00:00:00
abstract::Background. Mouse embryonic stem (ES) cells can be differentiated in vitro by aggregation and/or retinoic acid (RA) treatment. The principal differentiation lineage in vitro is extraembryonic primitive endoderm. Dab2, Laminin, GATA4, GATA5, and GATA6 are expressed in embryonic primitive endoderm and play critical role...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.4061/2010/602068
更新日期:2010-05-11 00:00:00
abstract::Age-related macular degeneration (AMD) is a leading cause of legal blindness in individuals over 60 years of age, characterized by the dysfunction of retinal pigmented epithelium cells, specifically in the macular area. Despite several treatment options, AMD therapy remains difficult, especially for exudative AMD. Mul...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2012/946090
更新日期:2012-01-01 00:00:00