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https://www.readbyqxmd.com/read/28337463/skin-tissue-engineering-application-of-adipose-derived-stem-cells
#1
REVIEW
Agnes S Klar, Jakub Zimoch, Thomas Biedermann
Perception of the adipose tissue has changed dramatically over the last few decades. Identification of adipose-derived stem cells (ASCs) ultimately transformed paradigm of this tissue from a passive energy depot into a promising stem cell source with properties of self-renewal and multipotential differentiation. As compared to bone marrow-derived stem cells (BMSCs), ASCs are more easily accessible and their isolation yields higher amount of stem cells. Therefore, the ASCs are of high interest for stem cell-based therapies and skin tissue engineering...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28327783/onset-locations-of-the-pharyngeal-phase-of-swallowing-meta-analysis
#2
Maralice Zancan, Karen Fontes Luchesi, Claudia Tiemi Mituuti, Ana Maria Furkim
Purpose: Literature review on the onset locations of the pharyngeal phase of swallowing in asymptomatic and symptomatic adults and elderly people. Research strategies: Research was conducted in the PubMed, BIREME and SciELO databases through the descriptors fluoroscopy (fluoroscopia), deglutition (deglutição) and pharynx (faringe). Selection criteria: Studies published between 2005 and 2015, carried out with adults and elderly people who underwent swallowing videofluoroscopy (SVF), and citing the onset location of the pharyngeal phase of swallowing...
March 16, 2017: CoDAS
https://www.readbyqxmd.com/read/28325151/adipose-tissue-derived-pericytes-for-cartilage-tissue-engineering
#3
Jin Xin Zhang, Chun Yan Du, Wei Min Guo, Pan Li, Shu Yun Liu, Zhi Guo Yuan, Jian Hua Yang, Xun Sun, He Yong Yin, Quan Yi Guo, Chen Fu Zhou
Mesenchymal stem cells (MSCs) represent a promising alternative source for cartilage tissue engineering. However, MSC culture is labor-intensive, so these cells cannot be applied immediately to regenerate cartilage for clinical purposes. Risks during the ex vivo expansion of MSCs, such as infection and immunogenicity, can be a bottleneck in their use in clinical tissue engineering. As a novel stem cell source, pericytes are generally considered to be the origin of MSCs. Pericytes do not have to undergo time-consuming ex vivo expansion because they are uncultured cells...
March 21, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28323901/characterization-of-stromal-vascular-fraction-and-adipose-stem-cells-from-subcutaneous-preperitoneal-and-visceral-morbidly-obese-human-adipose-tissue-depots
#4
Karina Ribeiro Silva, Isis Côrtes, Sally Liechocki, João Regis Ivar Carneiro, Antônio Augusto Peixoto Souza, Radovan Borojevic, Clarissa Menezes Maya-Monteiro, Leandra Santos Baptista
BACKGROUND/OBJECTIVES: The pathological condition of obesity is accompanied by a dysfunctional adipose tissue. We postulate that subcutaneous, preperitoneal and visceral obese abdominal white adipose tissue depots could have stromal vascular fractions (SVF) with distinct composition and adipose stem cells (ASC) that would differentially account for the pathogenesis of obesity. METHODS: In order to evaluate the distribution of SVF subpopulations, samples of subcutaneous, preperitoneal and visceral adipose tissues from morbidly obese women (n = 12, BMI: 46...
2017: PloS One
https://www.readbyqxmd.com/read/28321259/evaluation-of-three-devices-for-the-isolation-of-the-stromal-vascular-fraction-from-adipose-tissue-and-for-asc-culture-a-comparative-study
#5
Jonathan Rodriguez, Anne-Sophie Pratta, Nacira Abbassi, Hugo Fabre, Fanny Rodriguez, Cyrille Debard, Jacqueline Adobati, Fabien Boucher, Frédéric Mallein-Gerin, Céline Auxenfans, Odile Damour, Ali Mojallal
Adipose-derived stem/stromal cells (ASCs) reside in the stromal vascular fraction (SVF) of adipose tissue (AT) and can be easily isolated. However, extraction of the SVF from lipoaspirate is a critical step in generating ASC, and semiautomated devices have been developed to enhance the efficacy and reproducibility of the outcomes and to decrease manipulation and contamination. In this study, we compared the reference method used in our lab for SVF isolation from lipoaspirate, with three medical devices: GID SVF-1™, Puregraft™, and Stem...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28320625/low-osmolality-and-shear-stress-during-liposuction-impair-cell-viability-in-autologous-fat-grafting
#6
T Ismail, J Bürgin, A Todorov, R Osinga, N Menzi, R D Largo, M Haug, I Martin, A Scherberich, D J Schaefer
BACKGROUND: Liposuction and subsequent autologous fat grafting have become essential techniques for fat augmentation in plastic surgery. However, standard harvesting techniques that ensure the survival of adipocytes and stromal vascular fraction (SVF) cells and thus preserve the transplanted fat volume are lacking. In particular, the effect of different parameters of the tumescent solution has not been studied in this context. We hypothesized that the osmolality of the tumescent solution could have a significant effect on the survival of adipocytes and SVF cells...
February 17, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28316259/the-adipose-stromal-vascular-fraction-as-a-complex-cellular-source-for-tissue-engineering-applications
#7
Venkat M Ramakrishnan, Nolan L Boyd
A major challenge in tissue engineering is the generation of sufficient volumes of viable tissue for organ transplant. The development of a stable, mature vasculature is required to sustain the metabolic and functional activities of engineered tissues. Adipose stromal vascular fraction (SVF) cells are an easily accessible, heterogeneous cell system comprised of endothelial cells, macrophages, pericytes, and various stem cell populations. Collectively, SVF has been shown to spontaneously form vessel-like networks in vitro and robust, patent, and functional vasculatures in vivo...
March 19, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28290502/extracellular-matrix-and-%C3%AE-5%C3%AE-1-integrin-signaling-control-the-maintenance-of-bone-formation-capacity-by-human-adipose-derived-stromal-cells
#8
Nunzia Di Maggio, Elisa Martella, Agne Frismantiene, Therese J Resink, Simone Schreiner, Enrico Lucarelli, Claude Jaquiery, Dirk J Schaefer, Ivan Martin, Arnaud Scherberich
Stromal vascular fraction (SVF) cells of human adipose tissue have the capacity to generate osteogenic grafts with intrinsic vasculogenic properties. However, adipose-derived stromal/stem cells (ASC), even after minimal monolayer expansion, display poor osteogenic capacity in vivo. We investigated whether ASC bone-forming capacity may be maintained by culture within a self-produced extracellular matrix (ECM) that recapitulates the native environment. SVF cells expanded without passaging up to 28 days (Unpass-ASC) deposited a fibronectin-rich extracellular matrix and displayed greater clonogenicity and differentiation potential in vitro compared to ASC expanded only for 6 days (P0-ASC) or for 28 days with regular passaging (Pass-ASC)...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286479/detection-of-conversion-from-mild-cognitive-impairment-to-alzheimer-s-disease-using-longitudinal-brain-mri
#9
Zhuo Sun, Martijn van de Giessen, Boudewijn P F Lelieveldt, Marius Staring
Mild Cognitive Impairment (MCI) is an intermediate stage between healthy and Alzheimer's disease (AD). To enable early intervention it is important to identify the MCI subjects that will convert to AD in an early stage. In this paper, we provide a new method to distinguish between MCI patients that either convert to Alzheimer's Disease (MCIc) or remain stable (MCIs), using only longitudinal T1-weighted MRI. Currently, most longitudinal studies focus on volumetric comparison of a few anatomical structures, thereby ignoring more detailed development inside and outside those structures...
2017: Frontiers in Neuroinformatics
https://www.readbyqxmd.com/read/28283911/recovery-of-renal-function-after-administration-of-adipose-tissue-derived-stromal-vascular-fraction-in-rat-model-of-acute-kidney-injury-induced-by-ischemia-reperfusion-injury
#10
Chunwoo Lee, Myoung Jin Jang, Bo Hyun Kim, Jin Young Park, Dalsan You, In Gab Jeong, Jun Hyuk Hong, Choung-Soo Kim
Acute kidney injury (AKI) induced by ischemia/reperfusion (I/R) injury is a major challenge in critical care medicine. The purpose of this study is to determine the therapeutic effects of the adipose-tissue-derived stromal vascular fraction (SVF) and the optimal route for SVF delivery in a rat model of AKI induced by I/R injury. Fifty male Sprague-Dawley rats were randomly divided into five groups (10 animals per group): sham, nephrectomy control, I/R injury control, renal arterial SVF infusion and subcapsular SVF injection...
March 10, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28277152/visuospatial-processing-in-adolescents-with-critical-congenital-heart-disease-organization-integration-and-implications-for-academic-achievement
#11
Jessica L Bean Jaworski, Matthew T White, David R DeMaso, Jane W Newburger, David C Bellinger, Adam R Cassidy
Among the most significant factors affecting quality of life in individuals with critical congenital heart disease (CCHD) are neurodevelopmental challenges, including deficits in visuospatial processing and academic achievement. Few studies have compared outcomes across CCHD subgroups, despite their significant differences in anatomy/physiology and medical/surgical courses. This study compared visuospatial processing abilities using the Developmental Scoring System for the Rey-Osterrieth Complex Figure (DSS-ROCF) across groups of adolescents with CCHD (d-transposition of the great arteries [TGA, n = 139], Tetralogy of Fallot [TOF, n = 68], single-ventricle cardiac anatomy requiring the Fontan operation [SVF, n = 145]) and a group of healthy controls (CTR, n = 111), and examined the validity of visuospatial processing in predicting concurrent academic outcomes...
February 16, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28276451/comparison-of-human-adipose-stromal-vascular-fraction-and-adipose-derived-mesenchymal-stem-cells-for-the-attenuation-of-acute-renal-ischemia-reperfusion-injury
#12
Liuhua Zhou, Qun Song, Jiangwei Shen, Luwei Xu, Zheng Xu, Ran Wu, Yuzheng Ge, Jiageng Zhu, Jianping Wu, Quanliang Dou, Ruipeng Jia
Stem cells therapy has been suggested as a promising option for the treatment of acute kidney injury (AKI). This study was performed to compare the abilities of xenogenic transplantation of human adipose stromal vascular fraction (SVF) and adipose-derived mesenchymal stem cells (AdMSCs) to facilitate the recovery of renal function and structure in a rat model of ischemia/reperfusion (IR) induced AKI. SVF or AdMSCs were transplanted to the injured kidney through intra-parenchymal injection. Significantly improved renal function and reduced tubular injury were observed in SVF and AdMSCs groups...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28270523/id1-promotes-obesity-by-suppressing-brown-adipose-thermogenesis-and-white-adipose-browning
#13
Mallikarjun Patil, Bal Krishan Sharma, Sawsan Elattar, Judith Chang, Shweta Kapil, Jinling Yuan, Ande Satyanarayana
Obesity results from increased energy intake or defects in energy expenditure. Brown adipose tissue (BAT) is specialized for energy expenditure, a process called adaptive thermogenesis. Peroxisome proliferator activated receptor γ coactivator 1α (PGC1α) controls BAT-mediated thermogenesis by regulating the expression of Ucp1 Inhibitor of differentiation 1 (Id1) is a helix-loop-helix transcription factor that plays important roles in cell proliferation and differentiation. Here, we demonstrate a novel function of Id1 in BAT thermogenesis and programming of beige adipocytes in white adipose tissue (WAT)...
March 7, 2017: Diabetes
https://www.readbyqxmd.com/read/28258850/angiogenic-characteristics-of-human-stromal-vascular-fraction-in-ischemic-hindlimb
#14
Enze Jin, Dong-Sik Chae, Mina Son, Sung-Whan Kim
INTRODUCTION: In this study, we sought to characterize the angio-vasculogenic property of human adipose tissue-derived stromal vascular fraction (SVF) and to determine the therapeutic potential of SVF in the context of experimental ischemia. Although human SVF is used for cell therapy, its angiogenic and vasculogenic characteristics have not been fully elucidated. METHODS AND RESULTS: We conducted flow cytometry, microarray, quantitative (q)-PCR, Matrigel tube formation assays and in vivo therapeutic assays using an ischemic hind limb mouse model...
May 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28251260/intratendinous-adipose-derived-stromal-vascular-fraction-svf-injection-provides-a-safe-efficacious-treatment-for-achilles-tendinopathy-results-of-a-randomized-controlled-clinical-trial-at-a-6-month-follow-up
#15
Federico Giuseppe Usuelli, Miriam Grassi, Camilla Maccario, Marco Vigano', Luciano Lanfranchi, Umberto Alfieri Montrasio, Laura de Girolamo
PURPOSE: Although platelet-rich plasma (PRP) injection has shown controversial results for the treatment of Achilles tendinopathy, it remains the most used biological treatment. Recent findings seem to demonstrate that the stromal vascular fraction (SVF) within adipose tissue may counteract the impaired tendon homeostasis. The aim of this study was to prospectively compare the efficacy of PRP and SVF injection for the treatment of non-insertional Achilles tendinopathy. METHODS: Fourty-four patients were recruited in the study; 23 of them were assigned to the PRP group whereas 21 to the SVF group, treated unilaterally or bilaterally for a total of 28 tendons per group...
March 1, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28244036/isolation-of-mouse-stromal-vascular-cells-for-monolayer-culture
#16
Longhua Liu, Louise D Zheng, Sarah R Donnelly, Margo P Emont, Jun Wu, Zhiyong Cheng
Positive energy balance contributes to adipose tissue expansion and dysfunction, which accounts largely for obesity and related metabolic disorders. Thermogenic fat can dissipate energy, activation or induction of which may promote energy balance and address the pressing health issues. Recent studies have shown that stromal vascular fraction (SVF) from white adipose tissue (WAT) can develop both white and brown-like adipocyte phenotypes, thus serving as a unique model to study adipogenesis and thermogenesis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28239164/adipocyte-c1qtnf5-expression-is-bmi-dependently-related-to-early-adipose-tissue-dysfunction-and-systemic-ctrp5-serum-levels-in-obese-children
#17
J T Schwartze, K Landgraf, U Spielau, D Rockstroh, D Löffler, J Kratzsch, W Kiess, A Körner
BACKGROUND/OBJECTIVES: The recently identified adipocytokine C1QTNF5 (encodes for CTRP5) has been demonstrated to inhibit pro-metabolic insulin signaling in adipocytes. We hypothesized that adipocyte C1QTNF5 expression in subcutaneous (sc) adipose tissue (AT) would correlate with the degree of obesity, systemic CTRP5 serum levels, and early AT and metabolic dysfunction in children. SUBJECTS/METHODS: Sc AT samples were obtained from 33 healthy Caucasian lean children aged 10...
February 27, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28230922/adipose-derived-aldehyde-dehydrogenase-expressing-cells-promote-dermal-regenerative-potential-with-collagen-glycosaminoglycan-scaffold
#18
Hajime Matsumine, Kazuyuki Numakura, Satoshi Tsunoda, Huan Wang, Rui Matsumine, Mihail Climov, Giorgio Giatsidis, Vikas P Sukhatme, Dennis P Orgill
Aldehyde dehydrogenase (ALDH) is an enzyme that plays an important role in retinoid metabolism and highly expressed in stem cells. This study isolated ALDH-expressing cells from subcutaneous adipose tissue and investigated their potential to enhance healing in a full-thickness skin wound in rats by co-implanting them with collagen-glycosaminoglycan (c-GAG) scaffolds. ALDH-positive cells were isolated by a fluorescence-activated cell sorting technique from Lewis rat's stromal-vascular-fraction (SVF) and transplanted with c-GAG scaffolds in a rat full-thickness skin wound model...
November 7, 2016: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28229415/isolation-of-stromal-stem-cells-from-adipose-tissue
#19
Maria Prat, Francesca Oltolina, Silvia Antonini, Andrea Zamperone
Adipose tissue has been shown to be particularly advantageous as source of mesenchymal stem cells (MSCs), because of its easy accessibility, and the possibility of obtaining stem cells in high yields. MSCs are obtained from the so-called Stromal Vascular Fraction, (SVF), exploiting their property of adhering to plastic surfaces and can be further purified by positive or negative immunomagnetic selection with appropriately chosen antibodies. These cells (Stromal Stem Cells, SSCs) can then be directly analyzed, frozen in liquid nitrogen, or expanded for further applications, e...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28228728/perivascular-adipose-tissue-s-impact-on-norepinephrine-induced-contraction-of-mesenteric-resistance-arteries
#20
Nadia Ayala-Lopez, Janice M Thompson, Stephanie W Watts
Background: Perivascular adipose tissue (PVAT) can decrease vascular contraction to NE. We tested the hypothesis that metabolism and/or uptake of vasoactive amines by mesenteric PVAT (MPVAT) could affect NE-induced contraction of the mesenteric resistance arteries. Methods: Mesenteric resistance vessels (MRV) and MPVAT from male Sprague-Dawley rats were used. RT-PCR and Western blots were performed to detect amine metabolizing enzymes. The Amplex® Red Assay was used to quantify oxidase activity by detecting the oxidase reaction product H2O2 and the contribution of PVAT on the mesenteric arteries' contraction to NE was measured by myography...
2017: Frontiers in Physiology
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