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Fat transplantation

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https://www.readbyqxmd.com/read/29778021/the-homing-of-human-umbilical-cord-derived-mesenchymal-stem-cells-and-the-subsequent-modulation-of-macrophage-polarization-in-type-2-diabetic-mice
#1
Yaqi Yin, Haojie Hao, Yu Cheng, Jieqing Gao, Jiejie Liu, Zongyan Xie, Qi Zhang, Li Zang, Weidong Han, Yiming Mu
Umbilical cord-derived mesenchymal stem cells (UC-MSCs), with both immunomodulatory and pro-regenerative properties, are promising for the treatment of type 2 diabetes mellitus (T2DM). As efficient cell therapy largely relies on appropriate homing to target tissues, knowing where and to what extent injected UC-MSCs have homed is critically important. However, bio-distribution data for UC-MSCs in T2DM subjects are extremely limited. Beneficial effects of UC-MSCs on T2DM subjects are associated with increased M2 macrophages, but no systemic evaluation of M2 macrophages has been performed in T2DM individuals...
May 15, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29766773/effects-of-a-structured-physical-activity-program-on-habitual-physical-activity-and-body-composition-in-patients-with-chronic-kidney-disease-and-in-kidney-transplant-recipients
#2
Anna Masajtis-Zagajewska, Katarzyna Muras, Michał Nowicki
OBJECTIVES: In this study, we compared the effects of an individualized physical activity program on lifestyle, metabolic profile, body composition, and quality of life in kidney transplant recipients and patients with chronic kidney disease. MATERIALS AND METHODS: Our study included 24 kidney transplant recipients and 15 patients with chronic kidney disease at stage 3/4. Body composition (impedance spectroscopy) and habitual physical activity (accelerometry) assessed at baseline were used to prepare the individualized physical activity program...
May 16, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29764513/cellular-therapy-with-human-autologous-adipose-derived-adult-cells-of-stromal-vascular-fraction-for-alopecia-areata
#3
Rami Anderi, Nehman Makdissy, Albert Azar, Francine Rizk, Aline Hamade
BACKGROUND: Most common forms of hair loss (alopecia) are caused by aberrant hair follicle cycling and changes in hair follicle morphology. However, current treatments for alopecia do not specifically target these processes. Adipose-derived stromal vascular cells (ADSVCs) that can be harvested from fat cells are one of the latest breakthroughs in the aesthetic field. The potential use of stem cell-based therapies (SCBT) for the repair and regeneration of various tissues and organs offers a paradigm shift that may provide alternative therapeutic solutions, which can be applied to prevent hair loss...
May 15, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29761169/prolonged-cenicriviroc-therapy-reduces-hepatic-fibrosis-despite-steatohepatitis-in-a-diet-induced-mouse-model-of-nonalcoholic-steatohepatitis
#4
Annie J Kruger, Bryan C Fuchs, Ricard Masia, Jacinta A Holmes, Shadi Salloum, Mozhdeh Sojoodi, Diego S Ferreira, Stephanie M Rutledge, Peter Caravan, Nadia Alatrakchi, Pam Vig, Eric Lefebvre, Raymond T Chung
Nonalcoholic steatohepatitis (NASH) is a progressive liver disease projected to become the leading cause of cirrhosis and liver transplantation in the next decade. Cenicriviroc (CVC), a dual chemokine receptor 2 and 5 antagonist, prevents macrophage trafficking and is under clinical investigation for the treatment of human NASH fibrosis. We assessed the efficacy and durability of short and prolonged CVC therapy in a diet-induced mouse model of NASH, the choline deficient, L-amino acid-defined, high-fat diet (CDAHFD) model...
May 2018: Hepatology Communications
https://www.readbyqxmd.com/read/29759796/factors-associated-with-anthropometric-indicators-of-nutritional-status-in-children-with-chronic-kidney-disease-undergoing-peritoneal-dialysis-hemodialysis-and-after-kidney-transplant
#5
Julieta García De Alba Verduzco, Erika Fabiola Hurtado López, Consuelo Pontón Vázquez, Adriana de la Torre Serrano, Enrique Romero Velarde, Edgar Manuel Vásquez Garibay
OBJECTIVE: The objective of the study was to demonstrate that there are differences in the factors associated with anthropometric indicators of nutritional status, with particular emphasis on arm indicators, in children with end-stage kidney disease undergoing peritoneal dialysis (PD), hemodialysis (HD), and after kidney transplant (KT). METHODS: An analytical cross-sectional study of consecutive cases included 130 children and adolescents with end-stage kidney disease undergoing substitutive treatment: 49 patients who underwent KT, 33 undergoing PD, and 47 undergoing HD...
May 11, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29731089/supercooling-storage-for-the-transplantable-sources-from-the-rat-and-the-rabbit-a-preliminary-report
#6
T Sultana, J I Lee, J H Park, S Lee
BACKGROUND: It is necessary to store the transplantable sources for a certain period during the variety of manipulation processing steps. The method used to preserve (depending on conditions of solvent, temperature, periods, density, and physical impulse, etc.) can affect the safety and efficacy of the samples. Supercooling refers to a phenomenon of lowering the temperature below its freezing point without freezing. We investigated the possibility of supercooling for the preservation of cells and organs according to the limited conditions...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29729825/a-randomized-controlled-trial-of-an-intensive-nutrition-intervention-versus-standard-nutrition-care-to-avoid-excess-weight-gain-after-kidney-transplantation-the-intent-trial
#7
Cordula K Henggeler, Lindsay D Plank, Kristin J Ryan, Emily L Gilchrist, Jessie M Casas, Lyn E Lloyd, Laura E Mash, Sandra L McLellan, Jennifer M Robb, Michael G Collins
OBJECTIVE: Excessive weight gain is common after kidney transplantation and increases cardiovascular risk. The aim of this randomized controlled trial was to determine whether an intensive nutrition and exercise intervention delivered alongside routine post-transplant care would reduce post-transplant weight gain. DESIGN: Single-blind, randomized controlled trial. SUBJECTS AND SETTING: Adult kidney transplant recipients at a regional transplant center were recruited during routine outpatient clinic visits in the first month after transplant...
May 2, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29729271/decreased-serum-estrogen-improves-fat-graft-retention-by-enhancing-early-macrophage-infiltration-and-inducing-adipocyte-hypertrophy
#8
Hsiaopei Mok, Jingwei Feng, Wansheng Hu, Jing Wang, Junrong Cai, Feng Lu
BACKGROUND: Fat grafting is a commonly used procedure; however, the mechanisms that regulate graft outcomes are not clear. Estrogen has been associated with vascularization, inflammation and fat metabolism, yet its role in fat grafting is unclear. METHODS: Mice were implanted with 17β-estradiol pellets (high estrogen, HE), underwent ovariectomy (low estrogen level, OVX) or sham surgery (normal estrogen level, CON). 45 days later, inguinal fat of mice was autografted subcutaneously...
May 2, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29729104/the-impact-of-diet-induced-hepatic-steatosis-in-a-murine-model-of-hepatic-ischemia-reperfusion-injury
#9
Kim H H Liss, Kyle S McCommis, Kari T Chambers, Terri A Pietka, George G Schweitzer, Sara L Park, ILKe Nalbantoglu, Carla J Weinheimer, Angela M Hall, Brian N Finck
The prevalence of obesity-associated nonalcoholic fatty liver disease has significantly increased over the past decade and end stage liver disease secondary to nonalcoholic steatohepatitis has become one of the most common indications for liver transplantation. This both increases the demand for organs and decreases the availability of donor livers deemed suitable for transplantation. While in the past many steatotic livers were discarded due to concerns over enhanced susceptibility to ischemia reperfusion injury and organ failure, the discrepancy between supply and demand has resulted in increasing use of expanded criteria donor organs including steatotic livers...
May 5, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29720269/acidic-preconditioning-of-endothelial-colony-forming-cells-ecfc-promote-vasculogenesis-under-proinflammatory-and-high-glucose-conditions-in-vitro-and-in-vivo
#10
Hebe Agustina Mena, Paula Romina Zubiry, Blandine Dizier, Mirta Schattner, Catherine Boisson-Vidal, Soledad Negrotto
BACKGROUND: We have previously demonstrated that acidic preconditioning of human endothelial colony-forming cells (ECFC) increased proliferation, migration, and tubulogenesis in vitro, and increased their regenerative potential in a murine model of hind limb ischemia without baseline disease. We now analyze whether this strategy is also effective under adverse conditions for vasculogenesis, such as the presence of ischemia-related toxic molecules or diabetes, one of the main target diseases for cell therapy due to their well-known healing impairments...
May 2, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29710230/long-term-outcomes-of-temporal-hollowing-augmentation-by-targeted-volume-restoration-of-fat-compartments-in-chinese-adults
#11
Ru-Lin Huang, Yun Xie, Wenjin Wang, Pohching Tan, Qingfeng Li
Importance: Previous anatomical and clinical studies have suggested that targeted restoration of the volume and distribution of fat compartments using appropriate cannula entry sites and injection planes is an excellent fat-grafting technique for facial contouring and hand rejuvenation. Objective: To perform subjective and objective evaluations of the safe and effective profile of the targeted fat-grafting technique for temporal hollowing augmentation. Design, Setting, and Participations: In a retrospective cohort study, a total of 96 consecutive patients with temporal hollowing were treated at the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai, China, with the targeted fat-grafting technique from January 1, 2009, to January 1, 2017...
April 19, 2018: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29709682/low-subcutaneous-adiposity-associates-with-higher-mortality-in-female-patients-with-cirrhosis
#12
Maryam Ebadi, Puneeta Tandon, Carlos Moctezuma-Velazquez, Sunita Ghosh, Vickie E Baracos, Vera C Mazurak, Aldo J Montano-Loza
BACKGROUND & AIMS: Two main body compartments, skeletal muscle and adipose tissue, exhibit independent functions. We aimed to explore the prognostic significance of skeletal muscle, visceral and subcutaneous adipose tissue, according to sex, in patients with cirrhosis assessed for liver transplantation (LT). METHODS: CT images taken at the 3rd. lumbar vertebra from 677 patients were quantified for three body composition indexes (cm2 /m2 ), visceral adipose tissue index (VATI), subcutaneous adipose tissue index (SATI), and skeletal muscle index (SMI)...
April 27, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29697857/the-protective-effects-of-melatonin-and-glucagon-like-peptide-1-receptor-agonist-liraglutide-on-gastric-ischemia-reperfusion-injury-in-high-fat-sucrose-fed-rats
#13
Hanan A Mubarak, Manal M Mahmoud, Heba S Shoukry, Dina H Merzeban, Safinaz S Sayed, Laila A Rashed
Ischemia-reperfusion (I-R) injury is a serious pathology that is often encountered with thrombotic events, during surgery when blood vessels are cross-clamped, and in organs for transplantation. Increased oxidative stress is the main pathology in I-R injury, as assessed in studies on the heart, kidney, and brain with little data available on gastric I-R (GI-R). Liraglutide is a GLP-1receptor agonist that has insulinotropic and weight reducing actions, and melatonin that has much studied as a chronotropic hormone; have also studied as being antioxidative stress agents...
April 26, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29697188/biodegradable-silk-catheters-for-the-delivery-of-therapeutics-across-anatomical-repair-sites
#14
Joseph E Brown, Lorenzo Tozzi, Benjamin Schilling, Arta Kelmendi-Doko, April B Truong, Maria J Rodriguez, Eun Seok Gil, Robert Sucsy, Jolene E Valentin, Brian J Philips, Kacey G Marra, J Peter Rubin, David L Kaplan
Biodegradable silk catheters for the delivery of therapeutics are designed with a focus on creating porous gradients that can direct the release of molecules away from the implantation site. Though suitable for a range of applications, these catheters are designed for drug delivery to transplanted adipose tissue in patients having undergone a fat grafting procedure. A common complication for fat grafts is the rapid reabsorption of large volume adipose transplants. In order to prolong volume retention, biodegradable catheters can be embedded into transplanted tissue to deliver nutrients, growth factors or therapeutics to improve adipocyte viability, proliferation, and ultimately extend volume retention...
April 26, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29693762/growth-body-composition-and-bone-density-following-pediatric-liver-transplantation
#15
Amin Sheikh, Tim Cundy, Helen Maria Evans
Patients transplanted for cholestatic liver disease are often significantly fat-soluble vitamin deficient and malnourished pretransplant, with significant corticosteroid exposure post-transplant, with increasing evidence of obesity and metabolic syndrome post-LT. Our study aimed to assess growth, body composition, and BMD in patients post-pediatric LT. Body composition and bone densitometry scans were performed on 21 patients. Pre- and post-transplant anthropometric data were analyzed. Bone health was assessed using serum ALP, calcium, phosphate, and procollagen-1-N-peptide levels...
April 24, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29687392/soft-tissue-reconstruction
#16
Francesco Egro, Kacey G Marra
Autologous fat transplantation has revolutionized soft tissue reconstruction, but conventional methods remain unpredictable as graft resorption rates are high due to lack of vascularization. The advent of adipose-derived stem cells (ASCs) has led to improvement of fat grafting outcomes, in part to their ability to undergo facile differentiation into adipose tissue, their angiogenic properties, and their ability to express and secrete multiple growth factors. This chapter discusses the isolation and characterization of human ASCs, its expansion in vitro, and relevant in vivo models for adipose tissue engineering...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29675567/human-urine-derived-stem-cells-play-a-novel-role-in-the-treatment-of-stz-induced-diabetic-mice
#17
Tianxue Zhao, Deng Luo, Yun Sun, Xin Niu, Yang Wang, Chen Wang, Weiping Jia
Human urine-derived stem cells (hUSCs) are a potential stem cell source for cell therapy. However, the effect of hUSCs on glucose metabolism regulation in type 1 diabetes was not clear. Therefore, the aim of the study was to evaluate whether hUSCs have protective effect on streptozotocin (STZ)-induced diabetes. hUSCs were extracted and cultivated with a special culture medium. Flow cytometry analysis was applied to detect cell surface markers. BALB/c male nude mice were either injected with high-dose STZ (HD-STZ) or multiple low-dose STZ (MLD-STZ)...
April 19, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29674474/genetic-deletion-of-il-interleukin-19-exacerbates-atherogenesis-in-il19-%C3%A3-ldlr-double-knockout-mice-by-dysregulation-of-mrna-stability-protein-hur-human-antigen-r
#18
Mitali Ray, Khatuna Gabunia, Christine N Vrakas, Allison B Herman, Farah Kako, Sheri E Kelemen, Laurel A Grisanti, Michael V Autieri
OBJECTIVE: To test the hypothesis that loss of IL (interleukin)-19 exacerbates atherosclerosis. APPROACH AND RESULTS: Il19 -/- mice were crossed into Ldlr -/- (low-density lipoprotein receptor knock out) mice. Double knockout (dKO) mice had increased plaque burden in aortic arch and root compared with Ldlr -/- controls after 14 weeks of high-fat diet (HFD). dKO mice injected with 10 ng/g per day rmIL-19 had significantly less plaque compared with controls. qRT-PCR and Western blot analysis revealed dKO mice had increased systemic and intraplaque polarization of T cells and macrophages to proinflammatory Th 1 and M1 phenotypes, and also significantly increased TNF (tumor necrosis factor)-α expression in spleen and aortic arch compared with Ldlr -/- controls...
April 19, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29652075/impact-of-tgf-%C3%AE-family-related-growth-factors-on-chondrogenic-differentiation-of-adipose-derived-stem-cells-isolated-from-lipoaspirates-and-infrapatellar-fat-pads-of-osteoarthritic-patients
#19
E López-Ruiz, G Jiménez, W Kwiatkowski, E Montañez, F Arrebola, E Carrillo, S Choe, J A Marchal, M Perán
The success of cell-based approaches for the treatment of cartilage defects requires an optimal autologous cell source with chondrogenic differentiation ability that maintains its differentiated properties and stability following implantation. The objective of this study was to compare the chondrogenic capacity of mesenchymal stem cells (MSCs) isolated from lipoaspirates (ASCs) and the infrapatellar fat pad (IFPSCs) of osteoarthritic patients and treated with transforming growth factor (TGF)-β family-related growth factors...
April 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29616164/the-impact-of-recipient-site-external-expansion-in-fat-grafting-surgical-outcomes
#20
Carlo M Oranges, Julia Striebel, Mathias Tremp, Srinivas Madduri, Daniel F Kalbermatten, Dirk J Schaefer
Background: The fat grafting process includes the 4 phases of tissue harvesting, processing, recipient-site preparation, and reinjection. Among them, the preparation of the recipient site has never been exhaustively reviewed. We aim to provide a comprehensive overview of the methods to prepare the recipient site through external expansion with the resulting outcomes. Methods: PubMed/Medline database was searched for studies on fat grafting recipient site preparation by applying the following algorithm: ((fat grafting) OR (lipofilling) OR (lipograft) AND (recipient site))...
February 2018: Plastic and Reconstructive Surgery. Global Open
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