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Lipoaspirate

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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/28054934/evaluation-of-the-potential-of-chitosan-%C3%AE-1-3-glucan-ha-material-as-scaffold-for-living-bone-graft-production-i-in-vitro-i-by-comparison-of-adsc-and-bmdsc-behaviour-on-its-surface
#2
Agata Przekora, Marta Vandrovcova, Martina Travnickova, Julia Pajorova, Martin Molitor, Grazyna Ginalska, Lucie Bacakova
The opinion regarding the origin of adult stem cells that should be used for living bone construct generation is strongly divided in the scientific community. In this study, the potential of chitosan/β-1,3-glucan/HA material as scaffold for bone regeneration applications was evaluated by behaviour comparison of adult stem cells derived from both origins - adipose tissue (ADSCs) and bone marrow (BMDSCs). In the case of ADSC isolation, low and high negative pressures were applied during liposuction procedure in order to determine if negative pressure settings may have impact on subsequent cell behaviour <i>in vitro</i>...
January 5, 2017: Biomedical Materials
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
#3
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/28043786/autologous-fat-grafting-a-comparative-study-of-four-current-commercial-protocols
#4
Vincent Hivernaud, Bruno Lefourn, Myriam Robard, Jérôme Guicheux, Pierre Weiss
BACKGROUND: Autologous fat grafting is a widely used technique that gives natural results when treating soft tissue deficiencies. However, there is no consensus on which is the best procedure to use, leading to unpredictable results because of fat graft resorption. OBJECTIVES: This study compared four commercial lipotransfer devices by analyzing the behavior of the processed adipose tissue and outcome of the adipose graft in an in vivo model. METHODS: Four different protocols that used manual, power-assisted or water-assisted lipoaspiration and then decantation, centrifugation, or filtration were used on each of eight patients to process lipoaspirate...
December 14, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28039550/application-of-a-three-dimensional-graft-of-autologous-osteodifferentiated-adipose-stem-cells-in-patients-undergoing-minimally-invasive-transforaminal-lumbar-interbody-fusion-clinical-proof-of-concept
#5
E Fomekong, D Dufrane, B Vande Berg, W André, N Aouassar, S Veriter, C Raftopoulos
BACKGROUND: The authors applied a scaffold-free osteogenic three-dimensional (3D) graft made of adipose-derived mesenchymal stem cells (AMSCs) in patients undergoing minimally invasive transforaminal lumbar interbody fusion (MI-TLIF). METHODS: Three patients (two patients and one patient with 1 and 2 levels, respectively) with degenerative spondylolisthesis underwent MI-TLIF with 3D graft made of AMSCs. To obtain the AMSCs, fatty tissue was collected from the abdomen by lipoaspiration and differentiated afterwards in our Cell/Tissue bank...
December 30, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28018432/adipose-derived-mesenchymal-stem-cells-viability-and-differentiating-features-for-orthopaedic-reparative-applications-banking-of-adipose-tissue
#6
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/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/27943665/combination-therapy-of-autologous-adipose-mesenchymal-stem-cell-enriched-high-density-lipoaspirate-and-topical-timolol-for-healing-chronic-wounds
#8
Larissa Larsen, Catherine N Tchanque-Fossuo, Farzam Gorouhi, David Bodreault, Chuong Nguyen, Robert W Crawford, Sara E Dahle, Thomas Whetzel, R Rivkah Isseroff
Chronic venous leg ulcers are profoundly debilitating and result in billions of health care expenditures. Thus, there is a quest for engineered and innovative approaches. Herein we present a 63 year-old patient with a 30-year history of venous stasis and left lower extremity ulcers, which have been refractory to standard of care, anticoagulation, and venous stripping. The medial ulcer was treated with transplantation of autologous adipose mesenchymal stem cell (AMSC)-enriched, high density lipoaspirate (HDL) on OASIS wound matrix, and compression therapy...
December 12, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27931515/autologous-adipose-derived-mesenchymal-stromal-cells-for-the-treatment-of-psoriasis-vulgaris-and-psoriatic-arthritis-a-case-report
#9
Miguel M De Jesus, Jayson S Santiago, Camille V Trinidad, Melvin E See, Kimberly R Semon, Manuel O Fernandez, Francisco S Chung
Psoriasis is a dermatologic disease of immune origins with no definitive cure. We report the Makati Medical Center experience of utilizing autologous mesenchymal stromal cells (MSCs) for one patient with psoriasis vulgaris (PV) and another with psoriatic arthritis (PA). Patients were educated and gave informed consent, according to the principles of the Declaration of Helsinki. The protocol was approved by the Cellular Transplantation Ethics Committee of the Makati Medical Center. Autologous MSCs were cultured from lipoaspirate and expanded in a clean room class 100 facility (Cellular Therapeutics Center, Makati Medical Center)...
November 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27925206/opposite-effects-of-mechanical-action-of-fluid-flow-on-proangiogenic-factor-secretion-from-human-adipose-derived-stem-cells-with-and-without-oxidative-stress
#10
Beatriz Bravo, Cira García de Durango, Álvaro González, Arancha R Gortázar, Xavier Santos, Jerónimo Forteza-Vila, Fernando Vidal-Vanaclocha
Mechanical forces, hypoxia and oxidative stress contribute to skin renewal, perfusion and wound healing, but how are they regulating subcutaneous adipose-derived stem cells (ASCs) in the inflammatory microenvironment associated to skin repair and disorders is unknown. In this study, ASCs were isolated from lipoaspirate samples from plastic surgery patients, primary cultured and their differentiation and secretion of a panel of cytokines with pronounced effects on skin repair and angiogenesis were studied under mechanical stimulation by intermittent fluid flow, 1% hypoxia and oxidative stress by glutathione (GSH) depletion with buthionine sulfoximine (BSO) treatment...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27893630/a-comprehensive-in-vitro-comparison-of-preparation-techniques-for-fat-grafting
#11
Libor Streit, Josef Jaros, Veronika Sedlakova, Miroslava Sedlackova, Lubos Drazan, Michal Svoboda, Jakub Pospisil, Tomas Vyska, Jiri Vesely, Ales Hampl
BACKGROUND: Lipomodelling is a technique that uses patient's own fat for tissue regeneration and augmentation. The extent of regenerative effect is reported to be determined by the numbers of adipose tissue-derived stem cells (ASCs) and the viability of cells in processed adipose tissue, which, together with other factors, influence the degree of graft retention. This study addresses whether differences exist in properties of fat graft obtained by three commonly used techniques. METHODS: Adipose tissue harvested from the hypo-gastric regions of 14 patients was processed by decantation, centrifugation, and membrane-based tissue filtration...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27879586/separation-aspiration-and-fat-equalization-safe-liposuction-concepts-for-comprehensive-body-contouring
#12
Simeon H Wall, Michael R Lee
BACKGROUND: Separation, aspiration, and fatty equilibration (SAFE) liposuction uses a process approach to body contouring and minimizes injury to surrounding structures. The multistep process allows for (1) fat separation, (2) lipoaspiration, and (3) fat equalization. The purpose of this study was to review both outcomes and complications of primary SAFE liposuction. METHODS: Retrospective chart review was completed of patients undergoing SAFE liposuction from January of 2006 to January of 2011...
December 2016: Plastic and Reconstructive Surgery
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
#13
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/27810224/the-utility-of-adipose-derived-stem-cells-and-stromal-vascular-fraction-for-oncologic-soft-tissue-reconstruction-is-it-safe-a-matter-for-debate
#14
Shaun S Tan, Weiliang Loh
Autologous free-fat grafting (AFG) has emerged as an attractive proposition for soft-tissue reconstruction of various contour defects because it obviates more complex reconstructive options and reduces operative times and donor-site morbidity. Nonetheless, a common complication of this procedure is the resorption of the engrafted fat. Cell-assisted lipotransfer (CAL) is now a well-regarded technique where adipose-derived stem cell (ASC)-rich stromal vascular fraction is admixed with lipoaspirate, increasing the volumetric outcome of fat grafts in light of its potent angiogenic and adipogenic properties...
November 1, 2016: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/27769605/intratissular-expansion-mediated-serial-fat-grafting-a-step-by-step-working-algorithm-to-achieve-3d-biological-harmony-in-autologous-breast-reconstruction
#15
Filip B J L Stillaert, Casper Sommeling, Salvatore D'Arpa, David Creytens, Koenraad Van Landuyt, Herman Depypere, Rudy Van den Broecke, Stan Monstrey, Phillip N Blondeel, Wayne A Morrison
BACKGROUND: Breast reconstruction involves the use of autologous tissues or implants. Occasionally, microsurgical reconstruction is not an option because of insufficient donor tissues. Fat grafting has become increasingly popular in breast surgery. The challenge with this technique is how to reconstruct a stable and living "scaffold" that resembles a breast. METHODS: Breast reconstruction (n = 7) was performed using intratissular expansion with serial deflation-lipofilling sessions...
September 27, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27761084/role-of-adipose-derived-stem-cells-in-fat-grafting-and-reconstructive-surgery
#16
Shaun S Tan, Zhi Yang Ng, Weiqing Zhan, Warren Rozen
Autologous fat grafting is commonly utilised to reconstruct soft tissue defects caused by ageing, trauma, chronic wounds and cancer resection. The benefits of fat grafting are minimal donor site morbidity and ease of availability through liposuction or lipectomy. Nonetheless, survival and longevity of fat grafts remain poor post-engraftment. Various methods to enhance fat graft survival are currently under investigation and its stem cell constituents are of particular interest. Cell-assisted lipotransfer refers to the addition of adipose-derived stem cell (ASC) rich component of stromal vascular fraction to lipoaspirate, the results of which have proven promising...
July 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/27757339/shift-toward-mechanical-isolation-of-adipose-derived-stromal-vascular-fraction-review-of-upcoming-techniques
#17
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/27733784/evaluation-of-adipose-derived-stromal-vascular-fraction-from-the-lateral-tailhead-inguinal-region-and-mesentery-of-horses
#18
Garrett L Metcalf, Scott R McClure, Jesse M Hostetter, Rudy F Martinez, Chong Wang
Use of mesenchymal stem cells (MSCs) found in the stromal vascular fraction (SVF) of equine adipose tissue has promising applications for regenerative therapies. The most commonly used source of equine adipose tissue is the subcutaneous tailhead. The objective of this study was to compare 3 adipose depot sites in horses and determine the viability and cellular yield, capillary density, gene expression for selected markers, and colony-forming unit fibroblasts (CFU-Fs) in adipose tissue taken from these sites...
October 2016: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/27733351/a-comparison-of-two-fat-grafting-methods-on-operating-room-efficiency-and-costs
#19
Allen Gabriel, G Patrick Maxwell, Leah Griffin, Manish C Champaneria, Mousam Parekh, David Macarios
BACKGROUND: Centrifugation (Cf) is a common method of fat processing but may be time consuming, especially when processing large volumes. OBJECTIVES: To determine the effects on fat grafting time, volume efficiency, reoperations, and complication rates of Cf vs an autologous fat processing system (Rv) that incorporates fat harvesting and processing in a single unit. METHODS: We performed a retrospective cohort study of consecutive patients who underwent autologous fat grafting during reconstructive breast surgery with Rv or Cf...
October 11, 2016: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/27718343/commercial-production-of-autologous-stem-cells-and-their-therapeutic-potential-for-liver-cirrhosis
#20
Yi-Chun Lin, Horng-Jyh Harn, Po-Cheng Lin, Ming-Hsi Chuang, Chun-Hung Chen, Shinn-Zong Lin, Tzyy-Wen Chiou
Human adipose-derived stem cells (ADSCs) are a promising source of autologous stem cells for personalized cell-based therapies. Culture expansion of ADSCs provides an attractive opportunity for liver cirrhosis patients. However, safety and stability issues can pose big challenges for personalized autologous stem cell products. In the present study, we addressed whether the commercial production program could provide a consistent product for liver cirrhosis therapy. We collected adipose tissue from three human donors by lipoaspirate and isolated ADSCs, which were expanded in culture to reach 1 × 10(8) cells (an approximately 1000-fold expansion) within four passages...
October 6, 2016: Cell Transplantation
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