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https://www.readbyqxmd.com/read/29668587/impact-of-bone-marrow-mononuclear-cells-therapy-on-left-ventricular-function-in-patients-with-st-elevated-myocardial-infarction-a-meta-analysis
#1
Chao Wang, Xiujiang Han, Yongjian Li, Boya Zhang
BACKGROUND: Bone marrow mononuclear cell (BMMNC) therapy has been used as an adjunctive treatment in patients with ST-elevated myocardial infarction (STEMI). However, the therapeutic efficacy of this approach remains controversial. The present meta-analysis is aimed to evaluate the impact of cell therapy on left ventricular function after STEMI. METHODS: We searched through PubMed and EMBASE databases till 2017 for all relevant publications using certain search terms...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29662787/steroid-associated-osteonecrosis-animal-model-in-rats
#2
Li-Zhen Zheng, Jia-Li Wang, Ling Kong, Le Huang, Li Tian, Qian-Qian Pang, Xin-Luan Wang, Ling Qin
Objective: Established preclinical disease models are essential for not only studying aetiology and/or pathophysiology of the relevant diseases but more importantly also for testing prevention and/or treatment concept(s). The present study proposed and established a detailed induction and assessment protocol for a unique and cost-effective preclinical steroid-associated osteonecrosis (SAON) in rats with pulsed injections of lipopolysaccharide (LPS) and methylprednisolone (MPS). Methods: Sixteen 24-week-old male Sprague-Dawley rats were used to induce SAON by one intravenous injection of LPS (0...
April 2018: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29576595/therapeutic-efficacy-of-autologous-non-mobilized-enriched-circulating-endothelial-progenitors-in-patients-with-critical-limb-ischemia-the-scelta-trial
#3
Francesco Liotta, Francesco Annunziato, Sergio Castellani, Maria Boddi, Brunetto Alterini, Giovanni Castellini, Benedetta Mazzanti, Lorenzo Cosmi, Manlio Acquafresca, Filippo Bartalesi, Beatrice Dilaghi, Walter Dorigo, Gabriele Graziani, Benedetta Bartolozzi, Guido Bellandi, Giulia Carli, Alessandro Bartoloni, Aaron Fargion, Filippo Fassio, Paolo Fontanari, Giancarlo Landini, Eleonora A M Lucente, Stefano Michelagnoli, Carolina Orsi Battaglini, Grazia Panigada, Clara Pigozzi, Valentina Querci, Veronica Santarlasci, Paola Parronchi, Nicola Troisi, Cristiana Baggiore, Paola Romagnani, Edoardo Mannucci, Riccardo Saccardi, Carlo Pratesi, Gianfranco Gensini, Sergio Romagnani, Enrico Maggi
BACKGROUND: The therapeutic efficacy of bone marrow mononuclear cells (BM-MNC) autotransplantation in critical limb ischemia (CLI) has been reported. Variable proportions of circulating monocytes express low levels of CD34 (CD14+ CD34low cells) and behave in vitro as endothelial progenitor cells (EPCs). The aim of the present randomized clinical trial was to compare the safety and therapeutic effects of enriched circulating EPCs (ECEPCs) with BM-MNC administration.Methods and Results:ECEPCs (obtained from non-mobilized peripheral blood by immunomagnetic selection of CD14+ and CD34+ cells) or BM-MNC were injected into the gastrocnemius of the affected limb in 23 and 17 patients, respectively...
March 23, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29569981/regulatory-t-cells-within-bone-marrow-derived-stem-cells-actively-confer-immunomodulatory-and-neuroprotective-effects-against-stroke
#4
Elliot G Neal, Sandra A Acosta, Yuji Kaneko, Xunming Ji, Cesario V Borlongan
Regulatory T-cells (Tregs ) may exert a neuroprotective effect on ischemic stroke by inhibiting both inflammation and effector T-cell activation. Transplantation of human bone marrow-derived stem cells (BMSCs) in ischemic stroke affords neuroprotection that results in part from the cells' anti-inflammatory property. However, the relationship between Tregs and BMSCs in treatment of ischemic stroke has not been fully elucidated. Here, we tested the hypothesis that Tregs within the BMSCs represent active mediators of immunomodulation and neuroprotection in experimental stroke...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29559604/-angiogenic-ability-of-3-different-tissues-derived-mesenchymal-stem-cells-on-endothelial-progenitor-cells
#5
Siqi Wang, Haiyuan Lu, Lamei Cheng
To compare the ability between bone marrow-derived mesenchymal stem cells (MSCs) (BM-MSCs) and adipose-derived MSCs (AD-MSCs) or umbilical cord-derived MSCs (UC-MSCs) on promotion of vessels formation and vessels stabilization relevant to the functions of EPCs.
 Methods: In vitro, co-culture blood vessel test was performed to compare the angiogenic ability between BM-MSCs, AD-MSCs or UC-MSCs. In vivo, angiogenic assay dependent on basement membrane matrix Matrigel and immunohistochemistry were performed to compare the ability of vessels formation functions between BM-MSCs and AD-MSCs or UC-MSCs...
February 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29545214/hybrid-quantitative-mri-using-chemical-shift-displacement-and-recovery-based-simultaneous-water-and-lipid-imaging-a-preliminary-study
#6
Naoki Ohno, Tosiaki Miyati, Shuto Suzuki, Hirohito Kan, Toshitaka Aoki, Yoshitaka Nakamura, Yuki Hiramatsu, Satoshi Kobayashi, Toshifumi Gabata
PURPOSE: To suppress olefinic signals and enable simultaneous and quantitative estimation of multiple functional parameters associated with water and lipid, we investigated a modified method using chemical shift displacement and recovery-based separation of lipid tissue (SPLIT) involving acquisitions with different inversion times (TIs), echo times (TEs), and b-values. MATERIALS AND METHODS: Single-shot diffusion echo-planar imaging (SSD-EPI) with multiple b-values (0-3000 s/mm2 ) was performed without fat suppression to separate water and lipid images using the chemical shift displacement of lipid signals in the phase-encoding direction...
March 12, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29532760/efficacy-and-safety-of-autologous-cell-based-therapy-in-patients-with-no-option-critical-limb-ischaemia-a-meta-analysis
#7
Fadilah S Abdul Wahid, Nor Azimah Ismail, Wan Fariza Wan Jamaluddin, Nor Asiah Muhamad, Mohamad Mohamad Azim Mohamad Idris, Nai Ming Lai
BACKGROUND: Revascularisation therapy is the curent gold standard of care for critical limb ischaemia (CLI), although a significant proportion of patients with CLI either are not fit for or do not respond well to this procedure. Recently, novel angiogeneic therapies such as the use of autologous cell-based therapy (CBT) have been examined, but the results of individual trials were inconsistent. OBJECTIVE: To pool all published studies that compared the safety and efficacy of autologous CBT derived from different sources and phenotypes with non cell-based therapy (NCT) in CLI patients...
March 13, 2018: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29529399/angiogenesis-in-peripheral-arterial-disease
#8
REVIEW
Chakradhari Inampudi, Emmanuel Akintoye, Tomo Ando, Alexandros Briasoulis
Peripheral arterial disease (PAD) refers to narrowing of the peripheral arteries and atherosclerosis is the most important cause. In patients with PAD, revascularization is the preferred therapeutic strategy; nonetheless several patients are not deemed candidates for it due to advanced disease or several comorbidities. The main target of therapeutic angiogenesis is to promote development of new arterial vessels and improve perfusion of ischemic tissue. Angiogenic growth factors such as vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), hepatocyte growth factor (HGF), administered intramuscularly or intra-arterially, have been shown to promote angiogenesis and development of collateral vasculature in preclinical studies...
March 9, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29421564/high-density-lipoprotein-mimicking-nanodiscs-carrying-peptide-for-enhanced-therapeutic-angiogenesis-in-diabetic-hindlimb-ischemia
#9
Hyun-Ji Park, Rui Kuai, Eun Je Jeon, Yoojin Seo, Youngmee Jung, James J Moon, Anna Schwendeman, Seung-Woo Cho
Therapeutic strategies using endogenous stem cell mobilizer can provide effective cell-free therapy for addressing various ischemic diseases. In particular, substance P (SP) exhibited therapeutic regeneration by facilitating mobilization of endogenous stem cells from bone marrow to the injured sites. However, its therapeutic effect has been limited due to short half-life and rapid degradation of administered SP peptides in vivo. Here we sought to develop high-density lipoprotein (HDL)-mimicking nanodiscs conjugated with SP (HDL-SP) in order to increase the in vivo half-life, bone marrow targeting, and therapeutic efficacy of SP for the treatment of diabetic peripheral ischemia...
January 19, 2018: Biomaterials
https://www.readbyqxmd.com/read/29409311/effect-of-multiple-intraperitoneal-injections-of-human-bone-marrow-mesenchymal-stem-cells-on-cuprizone-model-of-multiple-sclerosis
#10
Mohsen Marzban, Kazem Mousavizadeh, Masoomeh Bakhshayesh, Nasim Vousooghi, Gelareh Vakilzadeh, Anahita Torkaman-Boutorabi
Background: Bone marrow mesenchymal stem cells (BM-MSCs) elicit neuroprotective effects, and their repair ability has been investigated in different experimental models. We aimed to investigate the effect of multiple i.p. BM-MSCs injections in the cuprizone model of multiple sclerosis in mice. Methods: Adult male C57BL/6 mice (n = 40) were fed a regular diet or a diet containing cuprizone (0.2% w/w) for 6 six weeks. Bone marrow samples were taken from patients with spinal cord injury...
February 7, 2018: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29399802/stem-cells-enhance-reperfusion-following-ischemia-validation-using-laser-speckle-imaging-in-predicting-tissue-repair
#11
Ya Hui Tang, R Will Thompson, Cherie-Ann Nathan, Jonathan Steven Alexander, Timothy Lian
OBJECTIVES: The lack of real-time assessment of vascular perfusion changes remains a major weakness in assessing the efficacy of bone marrow stromal cells (BMSC) therapeutic ischemia reperfusion (I/R) injury. This study provides for the first time the real-time in vivo perfusion monitoring in I/R mice with BMSC therapy. STUDY DESIGN: Animal model. METHODS: Surgically created cutaneous flaps perfused by the inferior epigastric vessels were subjected to 3...
February 5, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29395424/rationale-and-design-of-the-clinical-and-histologic-analysis-of-mesenchymal-stromal-cells-in-amputations-champ-trial-investigating-the-therapeutic-mechanism-of-mesenchymal-stromal-cells-in-the-treatment-of-critical-limb-ischemia
#12
S Keisin Wang, Linden A Green, Natalie A Drucker, Raghu L Motaganahalli, Andres Fajardo, Michael P Murphy
OBJECTIVE: Currently, there are no accepted nonsurgical therapies that improve the delivery of blood-derived nutrients to patients with critical limb ischemia. Here, we describe the ongoing phase 1/2 Clinical and Histologic Analysis of Mesenchymal Stromal Cells in AmPutations (CHAMP) trial, which will provide crucial evidence of the safety profile of mesenchymal stromal cells (MSCs) and explore their therapeutic mechanisms in the setting of critical limb ischemia requiring below-knee amputation (BKA)...
January 30, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29380818/renin-cells-in-homeostasis-regeneration-and-immune-defence-mechanisms
#13
REVIEW
R Ariel Gomez, Maria Luisa S Sequeira-Lopez
An accumulating body of evidence suggests that renin-expressing cells have developed throughout evolution as a mechanism to preserve blood pressure and fluid volume homeostasis as well as to counteract a number of homeostatic and immunological threats. In the developing embryo, renin precursor cells emerge in multiple tissues, where they differentiate into a variety of cell types. The function of those precursors and their progeny is beginning to be unravelled. In the developing kidney, renin-expressing cells control the morphogenesis and branching of the renal arterial tree...
January 30, 2018: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29363599/human-bone-perivascular-niche-on-a-chip-for-studying-metastatic-colonization
#14
Alessandro Marturano-Kruik, Michele Maria Nava, Keith Yeager, Alan Chramiec, Luke Hao, Samuel Robinson, Edward Guo, Manuela Teresa Raimondi, Gordana Vunjak-Novakovic
Eight out of 10 breast cancer patients die within 5 years after the primary tumor has spread to the bones. Tumor cells disseminated from the breast roam the vasculature, colonizing perivascular niches around blood capillaries. Slow flows support the niche maintenance by driving the oxygen, nutrients, and signaling factors from the blood into the interstitial tissue, while extracellular matrix, endothelial cells, and mesenchymal stem cells regulate metastatic homing. Here, we show the feasibility of developing a perfused bone perivascular niche-on-a-chip to investigate the progression and drug resistance of breast cancer cells colonizing the bone...
February 6, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29333468/extraosseous-accumulation-of-technetium-99m-methyl-diphosphonate-99m-tc-mdp-in-a-child-with-all-a-case-report
#15
Farnaz Banezhad, Narjess Ayati, Farrokh Seilanian Toosi, Samine Boloursaz, S Rasoul Zakavi
Extraosseous accumulation of technetium-99m-methyl diphosphonate (99m Tc-MDP) on bone scan is not common. This phenomenon is often attributed to abnormality of calcium metabolism and has been reported in a variety of conditions including metabolic diseases and malignancies. A five years old boy is presented here, who was admitted to the pediatric emergency suffering from fatigue, respiratory symptoms, weight loss, intermittent fevers, anorexia, nausea and vomiting, edema of legs and abdominal distension for one month...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29273609/bone-marrow-edema-associated-with-everolimus
#16
Rachel Lebovic McDevitt, Chelsey Quinlan, Katie Hersberger, Vaibhav Sahai
PURPOSE: The case of a patient who experienced bone marrow edema and pain in both feet and a compression fracture of one heel bone after several months of everolimus use is reported. SUMMARY: A 62-year-old woman with a grade 1 metastatic pancreatic neuroendocrine tumor (pNET) developed bilateral lower extremity edema and pain approximately 4 months after initiation of treatment with everolimus, an inhibitor of mammalian (or mechanistic) target of rapamycin (mTOR)...
January 1, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29273298/recruitment-and-therapeutic-application-of-macrophages-in-skeletal-muscles-after-hind-limb-ischemia
#17
Pei-Ling Hsieh, Viktoriya Rybalko, Aaron B Baker, Laura J Suggs, Roger P Farrar
OBJECTIVE: Peripheral arterial disease can cause not only ischemia but also skeletal muscle damage. It has been known that macrophages (MPs) play an important role in coordinating muscle repair; however, phenotype transition of monocyte-MP in ischemic muscle has not been well defined. Hence, the purpose of this study was to examine the temporal recruitment of MPs and to explore their therapeutic effect on ischemic muscle regeneration. METHODS: Unilateral femoral artery excision was performed on C57BL/6 mice...
December 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29273073/pulmonary-tumor-thrombotic-microangiopathy-successfully-treated-with-corticosteroids-a-case-report
#18
Shinichi Miyazaki, Takuya Ikeda, Genshi Ito, Masahide Inoue, Keiji Nara, Yuko Nishinaga, Yoshinori Hasegawa
BACKGROUND: Pulmonary tumor thrombotic microangiopathy is a special type of tumor thromboembolism. We report the case of a patient who developed pulmonary tumor thrombotic microangiopathy with alveolar hemorrhage. Almost all patients with pulmonary tumor thrombotic microangiopathy die within 1 week of the onset of dyspnea; however, the prognosis in this case was better, with 10 weeks of survival from presentation. CASE PRESENTATION: A 62-year-old Japanese man was referred to our hospital with a 4-week history of dyspnea on exertion and severe pulmonary hypertension...
December 23, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29251550/mri-study-on-the-changes-of-bone-marrow-microvascular-permeability-and-fat-content-after-total-body-x-ray-irradiation
#19
Kejun Wang, Yunfei Zha, Hao Lei, Xiao Xu
In this study, we investigated microvascular perfusion status, changes to fat content and fatty acid composition in the bone marrow of rat femurs after total-body irradiation by quantitative permeability parameters of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and ex vivo high-resolution magic angle spinning (HRMAS)1 H nuclear magnetic resonance spectroscopy (NMRS). Thirty-six Sprague-Dawley rats were randomly assigned to either an irradiated or nonirradiated control group. Permeability imaging using DCE-MRI and HRMAS1 H NMRS was performed before irradiation, as well as at days 4 and 7 postirradiation...
February 2018: Radiation Research
https://www.readbyqxmd.com/read/29238372/transplantation-of-rat-mesenchymal-stem-cells-overexpressing-hypoxia-inducible-factor-2-%C3%AE-improves-blood-perfusion-and-arteriogenesis-in-a-rat-hindlimb-ischemia-model
#20
Weifeng Lu, Xiaoli Chen, Yi Si, Shichai Hong, Zhengyu Shi, Weiguo Fu
Mesenchymal stem cells (MSCs) have been increasingly tested in cell-based therapy to treat numerous diseases. Genetic modification to improve MSC behavior may enhance posttransplantation outcome. This study aims to test the potential therapeutic benefits of rat bone marrow MSCs overexpressing hypoxia-inducible factor 2 α (rMSCsHIF-2 α ) in a rat hindlimb ischemia model. PBS, rMSCs, or rMSCsHIF-2 α were injected into rat ischemic hindlimb. Compared with the injection of PBS or rMSCs, transplantation of rMSCsHIF-2 α significantly improved blood perfusion, increased the number of vessel branches in the muscle of the ischemic hindlimb, and improved the foot mobility of the ischemic hindlimb (all P < 0...
2017: Stem Cells International
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