scholarly journals Insights into the use of mesenchymal stem cells in COVID-19 mediated acute respiratory failure

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Nisha Durand ◽  
Jorge Mallea ◽  
Abba C. Zubair
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Respiratory Failure ◽  
Acute Respiratory Failure ◽  
Stromal Cells ◽  
Distress Syndrome ◽  
Respiratory Illness ◽  
Shortness Of Breath ◽  
Global Pandemic ◽  
Hypoxic Respiratory Failure

Abstract The emergence of severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) at the end of 2019 in Hubei province China, is now the cause of a global pandemic present in over 150 countries. COVID-19 is a respiratory illness with most subjects presenting with fever, cough and shortness of breath. In a subset of patients, COVID-19 progresses to hypoxic respiratory failure and acute respiratory distress syndrome (ARDS), both of which are mediated by widespread inflammation and a dysregulated immune response. Mesenchymal stem cells (MSCs), multipotent stromal cells that mediate immunomodulation and regeneration, could be of potential benefit to a subset of COVID-19 subjects with acute respiratory failure. In this review, we discuss key features of the current COVID-19 outbreak, and the rationale for MSC-based therapy in this setting, as well as the limitations associated with this therapeutic approach.

scholarly journals Acute respiratory failure as primary manifestation of antineutrophil cytoplasmic antibodies-associated vasculitis

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
Evdokia Sourla ◽  
Vasilis Bagalas ◽  
Helias Tsioulis ◽  
Asimina Paspala ◽  
Sofia Akritidou ◽  
...  
Keyword(s):  
Respiratory Failure ◽  
Acute Respiratory Failure ◽  
Distress Syndrome ◽  
Clinical Presentation ◽  
Ventilatory Support ◽  
Multiple Organ ◽  
Alveolar Hemorrhage ◽  
Antineutrophil Cytoplasmic Antibodies ◽  
Organ Systems ◽  
Hypoxic Respiratory Failure

The systemic vasculitides are multifocal diseases characterized by the presence of blood vessel inflammation in multiple organ systems. Their clinical presentation is variable extending from self-limited illness to critical complications including diffuse alveolar hemorrhage and glomerulonephritis. Alveolar hemorrhage is a lifethreatening manifestation of pulmonary vasculitis that can rapidly progress into acute respiratory failure requiring ventilatory support. We present the case of a 74-year-old patient admitted to the Intensive Care Unit with severe hypoxic respiratory failure and diffuse alveolar infiltrates in chest imaging that was later diagnosed as antineutrophil cytoplasmic antibodies-associated vasculitis. The report highlights the importance of differentiate between alveolar hemorrhage and acute respiratory distress syndrome of other etiology because alveolar hemorrhage is reversible with prompt initiation of treatment.

From mesenchymal stem cells and stromal cells - from bench to bedside

2019 ◽  
Vol 1 (1) ◽  
pp. 36-39
Author(s):  
Bernd Giebel ◽  
Verena Börger ◽  
Mario Gimona ◽  
Eva Rohde
Keyword(s):  
Stem Cells ◽  
Clinical Trials ◽  
Mesenchymal Stem Cells ◽  
Stromal Cells ◽  
Therapeutic Agent ◽  
Therapeutic Potential ◽  
Therapeutic Effects ◽  
Cell Replacement ◽  
Beneficial Effects ◽  
Promising Tool

Human mesenchymal stem/stromal cells (MSCs) represent a promising tool in regenerative medicine. Until now, almost one thousand NIH-registered clinical trials investigated their immunomodulatory and pro-regenerative therapeutic potential in various diseases. Despite controversial reports regarding the efficacy of MSC-treatments, MSCs appear to exert their beneficial effects in a paracrine manner rather than by cell replacement. In this context, extracellular vesicles (EVs), such as exosomes and microvesicles, seem to induce the MSCs’ therapeutic effects. Here, we briefly illustrate the potential of MSC-EVs as therapeutic agent of the future.

Barotrauma during non-invasive ventilation for acute respiratory distress syndrome caused by COVID-19: a balance between risks and benefits

2021 ◽  
Vol 82 (6) ◽  
pp. 1-9
Author(s):  
M Gabrielli ◽  
F Valletta ◽  
F Franceschi ◽  
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Respiratory Failure ◽  
Acute Respiratory Failure ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
Distress Syndrome ◽  
Positive Pressure ◽  
Invasive Ventilation ◽  
Non Invasive ◽  
Non Invasive Ventilation

Ventilatory support is vital for the management of severe forms of COVID-19. Non-invasive ventilation is often used in patients who do not meet criteria for intubation or when invasive ventilation is not available, especially in a pandemic when resources are limited. Despite non-invasive ventilation providing effective respiratory support for some forms of acute respiratory failure, data about its effectiveness in patients with viral-related pneumonia are inconclusive. Acute respiratory distress syndrome caused by severe acute respiratory syndrome-coronavirus 2 infection causes life-threatening respiratory failure, weakening the lung parenchyma and increasing the risk of barotrauma. Pulmonary barotrauma results from positive pressure ventilation leading to elevated transalveolar pressure, and in turn to alveolar rupture and leakage of air into the extra-alveolar tissue. This article reviews the literature regarding the use of non-invasive ventilation in patients with acute respiratory failure associated with COVID-19 and other epidemic or pandemic viral infections and the related risk of barotrauma.

scholarly journals Isolation and Characterization of Human Synovial Fluid-Derived Mesenchymal Stromal Cells from Popliteal Cyst

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Fang Li ◽  
Jianglin Chen ◽  
Mengjia Gong ◽  
Yang Bi ◽  
Chengchen Hu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Flow Cytometry ◽  
Mesenchymal Stem Cells ◽  
Synovial Fluid ◽  
Stromal Cells ◽  
Pediatric Patients ◽  
Cyst Fluid ◽  
Popliteal Cyst ◽  
Cell Marker ◽  
Related Proteins

Mesenchymal stem cells (MSCs) are multipotent progenitor cells in adult tissues. The aim of this study is to isolate and identify synovial fluid-derived mesenchymal stromal cells (SF-MSCs) from the popliteal cyst fluid of pediatric patients. SF-MSCs were collected from the popliteal cyst fluid of pediatric patients during cystectomy surgery. After cyst fluid extraction and adherent culturing, in vitro morphology, growth curve, and cell cycle were observed. The expression of stem cell surface markers was analyzed by flow cytometry, and expression of cell marker protein was detected by immunofluorescence. SF-MSCs were cultured in osteogenic, adipogenic, and chondrogenic differentiation medium. The differentiation potential of SF-MSCs was analyzed by alkaline phosphatase (Alizarin Red), Oil Red O, and Alcian blue. Antibody detection of human angiogenesis-related proteins was performed compared with bone marrow mesenchymal stem cells (BM-MSCs). The results show that SF-MSCs from the popliteal cyst fluid of pediatric patients showed a shuttle appearance and logarithmic growth. Flow cytometry analysis revealed that SF-MSCs were negative for hematopoietic lineage markers (CD34, CD45) and positive for MSC markers (CD44, CD73, CD90, and CD105). Interstitial cell marker (vimentin) and myofibroblast-like cell marker alpha-smooth muscle actin (α-SMA) were positive. These cells could differentiate into osteogenic, adipogenic, and chondrogenic lineages, respectively. Several types of human angiogenesis-related proteins were detected in the cell secretory fluid. These results show that we successfully obtained SF-MSCs from the popliteal cyst fluid of pediatric patients, which have the potential to be a valuable source of MSCs.

Repair of iatrogenic tracheal injury in acute respiratory failure with veno-venous extracorporeal membrane oxygenation

Perfusion ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 100-102
Author(s):  
Pauline H Go ◽  
Albert Pai ◽  
Sharon B Larson ◽  
Kalpaj Parekh
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Respiratory Failure ◽  
Extracorporeal Membrane Oxygenation ◽  
Acute Respiratory Failure ◽  
Respiratory Distress Syndrome ◽  
Distress Syndrome ◽  
Severe Respiratory Failure ◽  
Tracheal Injury ◽  
Lung Isolation ◽  
Membrane Oxygenation

Iatrogenic tracheal injuries are rare but potentially serious complications of endotracheal intubation that frequently require lung isolation to repair. This is not tolerated in patients with severe respiratory failure. We describe a case in a patient with acute respiratory distress syndrome, repaired using veno-venous extracorporeal membrane oxygenation.

scholarly journals Acute Care of Older Patients with COVID-19: Clinical Characteristics and Outcomes

Geriatrics ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 65
Author(s):  
Zara Steinmeyer ◽  
Sara Vienne-Noyes ◽  
Marc Bernard ◽  
Armand Steinmeyer ◽  
Laurent Balardy ◽  
...  
Keyword(s):  
Respiratory Failure ◽  
Acute Respiratory Failure ◽  
Older Patients ◽  
Clinical Characteristics ◽  
Final Analysis ◽  
Geriatric Syndromes ◽  
Global Pandemic ◽  
Clinical Presentations ◽  
The Mean

(1) Background: COVID-19 has become a global pandemic and older patients present higher mortality rates. However, studies on the characteristics of this population set are limited. The objective of this study is to describe clinical characteristics and outcomes of older patients hospitalized with COVID-19. (2) Methods: This retrospective cohort study was conducted from March to May 2020 and took place in three acute geriatric wards in France. Older patients hospitalized for COVID-19 infections were included. We collected clinical, radiological, and laboratory outcomes. (3) Results: Ninety-four patients were hospitalized and included in the final analysis. Mean age was 85.5 years and 55% were female. Sixty-four (68%) patients were confirmed COVID-19 cases and 30 (32%) were probable. A majority of patients were dependent (77%), 45% were malnourished, and the mean number of comorbidities was high in accordance with the CIRS-G score (12.3 ± 25.6). The leading causes of hospitalization were fever (30%), dyspnea (28%), and geriatric syndromes (falls, delirium, malaise) (18%). Upon follow-up, 32% presented acute respiratory failure and 30% a geriatric complication. Frailty and geriatric characteristics were not correlated with mortality. Acute respiratory failure (p = 0.03) and lymphopenia (p = 0.02) were significantly associated with mortality. (4) Conclusions: Among older patients hospitalized with COVID-19, clinical presentations were frequently atypical and complications occurred frequently. Frailty and geriatric characteristics were not correlated with mortality.

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