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https://www.readbyqxmd.com/read/28086781/effects-of-the-intradiscal-implantation-of-stromal-vascular-fraction-plus-platelet-rich-plasma-in-patients-with-degenerative-disc-disease
#1
Comella Kristin, Silbert Robert, Parlo Michelle
BACKGROUND: Stromal vascular fraction (SVF) can easily be obtained from a mini-lipoaspirate procedure of fat tissue and platelet rich plasma (PRP) can be obtained from peripheral blood. The SVF contains a mixture of cells including ADSCs and growth factors and has been depleted of the adipocyte (fat cell) population. We evaluated the safety and efficacy of administering SVF and PRP intra-discally into patients with degenerative disc disease. METHODS: A total of 15 patients underwent a local tumescent liposuction procedure to remove approximately 60 ml of fat tissue...
January 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28052909/naturally-adipose-stromal-cell-enriched-fat-graft-comparative-polychromatic-flow-cytometry-study-of-fat-harvested-by-barbed-or-blunt-multihole-cannula
#2
Alessio Caggiati, Antonia Germani, Anna Di Carlo, Giovanna Borsellino, Maurizio C Capogrossi, Mario Picozza
BACKGROUND: Fat grafts enriched with cells of the stromal vascular fraction (SVF), especially adipose-derived stromal cells (ASCs), exhibit significantly improved retention over non enriched, plain fat. Different types of liposuction cannulae may yield lipoaspirates with different subpopulations of cells. Moreover, preparation of adipose tissue for transplantation typically involves centrifugation, which creates a density gradient of fat. OBJECTIVES: The authors sought to determine whether liposuction with a barbed or smooth cannula altered the enrichment of the SVF, and specifically ASCs, in low-density (LD) and high-density (HD) fractions of centrifuged adipose tissue...
January 3, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28040462/comparison-between-pediatric-and-adult-adipose-mesenchymal-stromal-cells
#3
Olivier Abbo, Marion Taurand, Paul Monsarrat, Isabelle Raymond, Emmanuelle Arnaud, Sandra De Barros, Françoise Auriol, Philippe Galinier, Louis Casteilla, Valerie Planat-Benard
BACKGROUND: Adipose-derived mesenchymalstromal cells (ASC) are currently tested in regenerative medicine to promote tissue reconstruction after injury. Regardingautologous purpose, the possible loss of therapeutic function and cell properties during aging have been questioned in adults. To date no reliable information is available concerning ASC from pediatric patients and a better knowledge is required for clinical applications. METHODS: Subcutaneous adipose tissue was collected from 27 donors (0-1 years old) and 50 donors (1-12 years old) and compared with adult ASC for in vitro characteristics...
December 28, 2016: Cytotherapy
https://www.readbyqxmd.com/read/28018432/adipose-derived-mesenchymal-stem-cells-viability-and-differentiating-features-for-orthopaedic-reparative-applications-banking-of-adipose-tissue
#4
Ilaria Roato, Daniela Alotto, Dimas Carolina Belisario, Stefania Casarin, Mara Fumagalli, Irene Cambieri, Raimondo Piana, Maurizio Stella, Riccardo Ferracini, Carlotta Castagnoli
Osteoarthritis is characterized by loss of articular cartilage also due to reduced chondrogenic activity of mesenchymal stem cells (MSCs) from patients. Adipose tissue is an attractive source of MSCs (ATD-MSCs), representing an effective tool for reparative medicine, particularly for treatment of osteoarthritis, due to their chondrogenic and osteogenic differentiation capability. The treatment of symptomatic knee arthritis with ATD-MSCs proved effective with a single infusion, but multiple infusions could be also more efficacious...
2016: Stem Cells International
https://www.readbyqxmd.com/read/28017585/evaluation-of-the-stromal-vascular-fraction-of-adipose-tissue%C3%A2-as-the-basis-for-a-stem-cell-based-tissue-engineered-vascular-graft
#5
Jeffrey T Krawiec, Han-Tsung Liao, LaiYee Lily Kwan, Antonio D'Amore, Justin S Weinbaum, J Peter Rubin, William R Wagner, David A Vorp
OBJECTIVE: One of the rate-limiting barriers within the field of vascular tissue engineering is the lengthy fabrication time associated with expanding appropriate cell types in culture. One particularly attractive cell type for this purpose is the adipose-derived mesenchymal stem cell (AD-MSC), which is abundant and easily harvested from liposuction procedures. Even this cell type has its drawbacks, however, including the required culture period for expansion, which could pose risks of cellular transformation or contamination...
December 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28002902/bone-marrow-concentrated-cells-and-stromal-vascular-fraction-cells-injections-for-osteoarthritis-treatment-a-systematic-review
#6
G Vadalà, R Papalia, L La Verde, F Russo, V Denaro, M A Rosa
The aim of this systematic review is to examine current clinical evidences supporting the intraarticular injection of bone marrow concentrate cells (BMC) and adipose-derived stromal vascular fraction cells (SVF) for the treatment of osteoarthritis (OA). The research was performed on PubMed (Medline), EMBASE and Cochrane Library considering the English literature. Only clinical trials have been included. The systematic research identified twelve clinical trials. Articles included in the study, were one of level II, four of level III, six of level IV and one level V...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28002250/adipose-extracellular-matrix-stromal-vascular-fraction-gel-a-novel-adipose-tissue-derived-injectable-for-stem-cell-therapy
#7
Yao Yao, Ziqing Dong, Yunjun Liao, Pan Zhang, Jingjing Ma, Jianhua Gao, Feng Lu
BACKGROUND: Adipose-derived stem cells (ASCs) and other stromal vascular fraction (SVF) cells were used more often for stem cell therapy, even though limitations such as poor cell retention rate, complicated and expensive isolation processes, and the use of specific laboratory equipment need to be overcome. METHODS: Here, we developed a novel but simple method for generating an injectable mixture of SVF cells and native adipose extracellular matrix (ECM). It is a purely mechanical process in which lipoaspirate is processed into an "ECM/SVF-gel"...
December 19, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27999947/comparison-of-in-vivo-immune-responses-following-transplantation-of-vascularized-and-non-vascularized-human-dermo-epidermal-skin-substitutes
#8
Agnes S Klar, Thomas Biedermann, Claudia Simmen-Meuli, Ernst Reichmann, Martin Meuli
PURPOSE: Autologous bio-engineered dermo-epidermal skin substitutes (DESS) represent an alternative therapeutic option for a definitive treatment of skin defects in human patients. Largely, the interaction of host immune cells with transplanted DESS is considered to be essential for the granulation tissue formation, graft take, and its functionality. The aim of this study was to compare the spatiotemporal distribution and density of host-derived monocytes/macrophages and granulocytes in vascularized (vascDESS) versus non-vascularized DESS (non-vascDESS) in a rat model...
December 20, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27984756/non-reconstructable-peripheral-vascular-disease-of-the-lower-extremity-in-ten-patients-treated-with-adipose-derived-stromal-vascular-fraction-cells
#9
Michael H Carstens, Arturo Gómez, Ronald Cortés, Elizabeth Turner, Cecilia Pérez, Marlon Ocon, Diego Correa
We present a series of ten patients with non-reconstructable peripheral vascular disease (PVD), secondary to arteriosclerosis (AS) and/or diabetes mellitus (DM), treated with local injection of non-expanded autologous, adipose-derived stromal vascular fraction (SVF) cells for the purposes of enhancing neovascularization and chronic wound healing. Adipose tissue was surgically harvested and processed to yield the heterogeneous SVF cells for immediate point-of-care injection. The gastrocnemius muscles and ulcers or wounds where present were locally injected with the resulting SVF...
January 2017: Stem Cell Research
https://www.readbyqxmd.com/read/27943660/clinical-scale-expansion-of-adipose-derived-stromal-cells-starting-from-stromal-vascular-fraction-in-a-single-use-bioreactor-proof-of-concept-for-autologous-applications
#10
Mélanie Gadelorge, Marion Bourdens, Nicolas Espagnolle, Clémence Bardiaux, Julie Murrell, Lenaig Savary, Sylvain Ribaud, Benoît Chaput, Luc Sensebe
Adipose derived stromal cells (ASC) are adult multipotent cells increasingly used for cell therapy due to their differentiation potential, their paracrine effect and their convenience. ASC are currently selected from stromal vascular fraction (SVF) of adipose tissue and expanded in 2D flasks following Good Manufacturing Practices. This process is limited in surface area, labor-intensive and expensive, especially for autologous applications requiring selection and expansion steps for every patient. Closed and automated bioreactors offer an alternative for scalable and cost-effective production of ASCs...
December 11, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27913088/effect-of-suction-pressures-on-cell-yield-and-functionality-of-the-adipose-derived-stromal-vascular-fraction
#11
Yuan-Wen Chen, Jing-Ru Wang, Xuan Liao, Sheng-Hong Li, Li-Ling Xiao, Biao Cheng, Guang-Hui Xie, Jian-Xing Song, Hong-Wei Liu
OBJECTIVE: The present study was performed to explore the effect of suction pressures on the cell yield of adipose-derived stromal vascular fraction (SVF) and the functionality of adipose-derived stem cells (ADSCs), situated in the SVF, and to develop optimal parameters of harvesting SVF for clinical use. METHODS: Adipose tissue was harvested from the lower abdomen of 10 patients by suction-assisted lipoplasty. Suction pressure was either -30 ± 5 kPa or -55 ± 5 kPa...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27902740/extensive-characterization-and-comparison-of-endothelial-cells-derived-from-dermis-and-adipose-tissue-potential-use-in-tissue-engineering
#12
Hanneke N Monsuur, Ester M Weijers, Frank B Niessen, Amit Gefen, Pieter Koolwijk, Susan Gibbs, Lenie J van den Broek
Tissue-engineered constructs need to become quickly vascularized in order to ensure graft take. One way of achieving this is to incorporate endothelial cells (EC) into the construct. The adipose tissue stromal vascular fraction (adipose-SVF) might provide an alternative source for endothelial cells as adipose tissue can easily be obtained by liposuction. Since adipose-EC are now gaining more interest in tissue engineering, we aimed to extensively characterize endothelial cells from adipose tissue (adipose-EC) and compare them with endothelial cells from dermis (dermal-EC)...
2016: PloS One
https://www.readbyqxmd.com/read/27886006/semi-automated-extraction-and-characterization-of-stromal-vascular-fraction-using-a-new-medical-device
#13
Alexander Hanke, Lukas Prantl, Carina Wenzel, Michael Nerlich, Gero Brockhoff, Markus Loibl, Sebastian Gehmert
INTRODUCTION: The stem cell rich Stromal Vascular Fraction (SVF) can be harvested by processing lipo-aspirate or fat tissue with an enzymatic digestion followed by centrifugation. To date neither a standardised extraction method for SVF nor a generally admitted protocol for cell application in patients exists. A novel commercially available semi-automated device for the extraction of SVF promises sterility, consistent results and usability in the clinical routine. The aim of this work was to compare the quantity and quality of the SVF between the new system and an established manual laboratory method...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27853678/rejuvenation-of-facial-skin-and-improvement-in-the-dermal-architecture-by-transplantation-of-autologous-stromal-vascular-fraction-a-clinical-study
#14
Mohammad Amir Amirkhani, Alireza Shoae-Hassani, Masoud Soleimani, Somayeh Hejazi, Leila Ghalichi, Mohammad Ali Nilforoushzadeh
Introduction: The rejuvenation characteristics of fat tissue grafting has been established for many years. Recently it has been shown that stromal vascular fraction (SVF) of fat tissue contributes to its rejuvenation properties. As the SVF is a minimal processed cell population (based on FDA guidance), therefore it is a suitable cell therapy for skin rejuvenation. This clinical trial was aimed to evaluate the ultrastructural improvement of aging skin in the facial nasolabial region after transplantation of autologous SVF...
2016: BioImpacts: BI
https://www.readbyqxmd.com/read/27852267/culture-expansion-of-adipose-derived-stromal-cells-a-closed-automated-quantum-cell-expansion-system-compared-with-manual-flask-based-culture
#15
Mandana Haack-Sørensen, Bjarke Follin, Morten Juhl, Sonja K Brorsen, Rebekka H Søndergaard, Jens Kastrup, Annette Ekblond
BACKGROUND: Adipose derived stromal cells (ASCs) are a rich and convenient source of cells for clinical regenerative therapeutic approaches. However, applications of ASCs often require cell expansion to reach the needed dose. In this study, cultivation of ASCs from stromal vascular fraction (SVF) over two passages in the automated and functionally closed Quantum Cell Expansion System (Quantum system) is compared with traditional manual cultivation. METHODS: Stromal vascular fraction was isolated from abdominal fat, suspended in α-MEM supplemented with 10% Fetal Bovine Serum and seeded into either T75 flasks or a Quantum system that had been coated with cryoprecipitate...
November 16, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27777379/impaired-autophagy-activity-is-linked-to-elevated-er-stress-and-inflammation-in-aging-adipose-tissue
#16
Amiya Kumar Ghosh, Theresa Mau, Martin O'Brien, Sanjay Garg, Raymond Yung
Adipose tissue dysfunction in aging is associated with inflammation, metabolic syndrome and other diseases. We propose that impaired protein homeostasis due to compromised lysosomal degradation (micro-autophagy) might promote aberrant ER stress response and inflammation in aging adipose tissue. Using C57BL/6 mouse model, we demonstrate that adipose tissue-derived stromal vascular fraction (SVF) cells from old (18-20 months) mice have reduced expression of autophagy markers as compared to the younger (4-6 months) cohort...
October 24, 2016: Aging
https://www.readbyqxmd.com/read/27757364/microcirculatory-response-in-vivo-on-local-intraarterial-infusion-of-autogenic-adipose-derived-stem-cells-or-stromal-vascular-fraction
#17
Wei Z Wang
: Both adipose-derived stem cells (ASCs) and stromal vascular fraction (SVF) have been demonstrated to have regenerative properties with therapeutic potential for numerous diseases through local or topical applications. However, it is unclear whether ASC or SVF can be delivered systemically through an intra-arterial infusion. The purpose of this study was to examine the microcirculatory response in vivo on local intraarterial infusion of autogenic ASCs or SVF in a vascular pedicle isolated rat cremaster microcirculation model...
September 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27757339/shift-toward-mechanical-isolation-of-adipose-derived-stromal-vascular-fraction-review-of-upcoming-techniques
#18
Alexandra Condé-Green, Vasanth S Kotamarti, Lauren S Sherman, Jonathan D Keith, Edward S Lee, Mark S Granick, Pranela Rameshwar
: Standard isolation of adipose stromal vascular fraction (SVF) requires the use of collagenase and is considered more than "minimally manipulated" by current good manufacturing practice requirements. Alternatively, nonenzymatic isolation methods have surfaced using physical forces to separate cells from the adipose matrix. The purpose of this study was to review the literature on the use of mechanical isolation protocols and compare the results. The implication for use as a standard procedure in practice is discussed...
September 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27748745/metrnl-decreases-during-adipogenesis-and-inhibits-adipocyte-differentiation-leading-to-adipocyte-hypertrophy-in-humans
#19
D Löffler, K Landgraf, D Rockstroh, J T Schwartze, H Dunzendorfer, W Kiess, A Körner
BACKGROUND: Meteorin-like (METRNL) is a recently described circulating protein shown to be highly expressed in white adipose tissue and to beneficially affect energy metabolism in mice. OBJECTIVE: We systematically evaluated the role of METRNL for human adipogenesis and its association with obesity, browning and hyperinsulinemia in children. In addition, we assessed the functional relevance of METRNL for human adipogenesis. RESULTS: METRNL expression decreased during human adipocyte differentiation in vitro...
January 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27742969/stress-coping-styles-of-459%C3%A2-emergency-care-physicians-in%C3%A2-germany-a%C3%A2-pilot-study
#20
M Sand, S Hessam, D Sand, F G Bechara, C Vorstius, M Bromba, E Stockfleth, I Shiue
AIM: In addition to assessing stress-coping strategies in patients, equal attention should be paid to health-care professionals. The literature on the stress-coping strategies of emergency physicians - health-care professionals who are frequently subject to stress in a fast-paced clinical setting - is scant. Therefore, we aimed to investigate the stress-coping strategies of emergency-care physicians (ECPs) in Germany. METHODS: We conducted a cross-sectional study by approaching German Associations of Emergency Medicine Physicians and the two largest ECP recruitment agencies in Germany to invite their members to participate...
October 14, 2016: Der Anaesthesist
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