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fat graft and wound

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https://www.readbyqxmd.com/read/28615811/adipokine-concentrations-in-lipoaspirates-may-have-a-role-in-wound-healing
#1
Christian Herold, Stefan Engeli, Bibiana Beckmann, Peter M Vogt, Hans-Oliver Rennekampff
OBJECTIVES: In addition to its use as a volume filler, fat grafting may have a potential role in wound healing based on the concentration of growth factors in the lipoaspirate. In this study, we compare the quantitative and qualitative concentration of the various growth factors and adipokines using the Shippert or the Coleman techniques to prepare the lipoaspirate. METHODS: We measured leptin, adiponectin and the growth factors, i.e., acidic fibroblast growth factor (aFGF), basic FGF (bFGF), keratinocyte growth factor (KGF), bone morphogenetic protein-2 (BMP-2) and vascular endothelial growth factor (VEGF) by ELISA in solid and liquid fractions obtained with both techniques in human fat obtained with Coleman technique and Shippert technique...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28612422/tenonplasty-for-closing-defects-during-sclerocorneal-surgery-a-brief-review-of-its-anatomy-and-clinical-applications
#2
Fabian N Fries, Shady Suffo, Loay Daas, Berthold Seitz, Miltiadis Fiorentzis, Arne Viestenz
PURPOSE: To provide insight into the clinical anatomy of Tenon's capsule and to describe a technique to manage sclerocorneal defects using autologous Tenon's tissue. METHODS: A thin layer of Tenon's capsule harvested from the patient's own eye is used to seal the defect and act as a scaffold. The Tenon's flap is spread over the defect and held in place by Vicryl sutures. A bandage contact lens is then placed on the eye. RESULTS: Tenon's capsule is composed of thick fibrous tissue with smooth muscle fibers and a thin posterior capsule of orbital fat...
June 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28587666/protocol-for-a-systematic-review-of-the-efficacy-of-fat-grafting-and-platelet-rich-plasma-for-wound-healing
#3
Oliver J Smith, Muholan Kanapathy, Ankur Khajuria, Max Prokopenko, Nadine Hachach-Haram, Haroon Mann, Ash Mosahebi
BACKGROUND: The use of fat grafting as a reconstructive surgical option is becoming much more common. Adipose-derived stem cells found in fat grafts are believed to facilitate wound healing via differentiation into fibroblasts and keratinocytes and the release of pro-healing growth factors. Several small studies have shown a positive effect of fat grafting in healing of wounds of a variety of aetiologies. When fat is combined with autologous platelet-rich plasma (PRP), there may be enhanced healing effects...
June 6, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28583554/enterobacter-cloacae-related-necrotizing-fasciitis-after-peritoneal-dialysis-in-delayed-graft-function-a-case-report
#4
Y-M Choe, K-M Park, Y S Jeon, S G Cho, K C Hong, W Y Shin, J H Song
INTRODUCTION: Necrotizing fasciitis is an uncommon soft-tissue infection that involves the superficial fascia, subcutaneous fat, and deep fascia. Herein, we report the first case of Enterobacter cloacae-related necrotizing fasciitis after peritoneal dialysis in delayed graft function. CASE: A 58-year-old man, who was a hepatitis B-viral carrier and had atrial fibrillation, received cadaveric renal transplantation with peritoneal dialysis and encountered delayed graft function...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28518182/triple-layered-closure-of-an-oroantral-fistula-a-case-report
#5
Eric George
Oroantral fistulae (OAF) are surgical sequelae that require complete resection and often leave large defects for the surgeon to repair. Closing these lesions is often technique sensitive and requires a detailed protocol, which, if not adhered to, can lead to recurrence. This case report presents a combined approach to closing an OAF by first excising the fistula and then resecting to retrieve the buccal fat pad to form a pedicle graft over the wound site. Next, a platelet-rich fibrin membrane is sandwiched over the buccal fat pad and completely covered by a buccal advancement flap...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28489652/histone-deacetylase-inhibitors-enhance-cytotoxicity-towards-breast-tumors-while-preserving-the-wound-healing-function-of-adipose-derived-stem-cells
#6
Kiavash R Koko, Shaohua Chang, Ashleigh L Hagaman, Marc W Fromer, Ryan S Nolan, John P Gaughan, Ping Zhang, Jeffrey P Carpenter, Spencer A Brown, Martha Matthews, Dorothy Bird
INTRODUCTION: Paclitaxel improves the oncologic response of breast cancer resections; however, it may negatively affect the wound-healing potential of human adipose-derived stem cells (hASCs) for fat grafting and reconstructive surgery. Histone deacetylase inhibitors (HDACis) modify the epigenetic regulation of gene expression and stabilize microtubules similarly to paclitaxel, thus, creating a synergistic mechanism of cell cycle arrest. We aim to combine these drugs to enhance cytotoxicity towards breast cancer cells, while preserving the wound-healing function of hASCs for downstream reconstructive applications...
June 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28475446/use-of-fat-transfer-to-treat-a-chronic-non-healing-post-radiation-ulcer-a-case-study
#7
A Mohan, S Singh
OBJECTIVE: Problematic wound healing and ulceration in radiation-damaged tissue is a surgical challenge. Clinical studies have shown that grafting fat tissue in an irradiated area can improve the quality of the skin and has regenerative effects. This case study describes how fat transfer led to the healing of a chronic ulcer resistant to other forms of treatment. CASE HISTORY: A 67-year-old lady with a chronic, non-healing ulcer in her leg had a squamous cell carcinoma excised, followed by radiotherapy...
May 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28433516/intravenous-mesenchymal-stromal-cell-therapy-for-inflammatory-bowel-disease-lessons-from-the-acute-graft-versus-host-disease-experience
#8
REVIEW
Laurie S Conklin, Patrick J Hanley, Jacques Galipeau, John Barrett, Cather M Bollard
Bone marrow-derived mesenchymal stromal cells (BMSCs) are primitive, supportive cells of the bone marrow with tri-lineage potential to differentiate into bone, cartilage, fat and muscle. These cells possess both in vitro and in vivo immunomodulatory and wound-healing properties. Several studies have demonstrated efficacy of intravenously administered BMSCs in treating acute graft-versus-host disease (GvHD). Use of intravenous (IV) BMSCs in inflammatory bowel diseases (IBD) in humans has been limited to small studies in adults, but results have been promising...
April 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28229358/postmastectomy-radiation-therapy-and-breast-reconstruction-with-autologous-tissue
#9
Yasunobu Terao, Koichiro Taniguchi, Miwako Fujii, So Moriyama
Immediate breast reconstruction is an important tool for patients to accept and overcome their breast cancer, as well as for cosmetic reasons. However, its use in patients who require postmastectomy radiation therapy (PMRT) is not yet clear. The purpose of this study was to analyze the effects of PMRT and reconstruction on each other. The time of initiation of PMRT, the prognosis, and the cosmetic results were investigated in patients who underwent immediate reconstruction using autologous tissue. In the case of delayed reconstruction using autologous tissue after PMRT, radiation damage of the chest skin, design of the flap, and cosmetic results were investigated...
February 22, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28156060/the-power-of-fat-and-its-adipose-derived-stromal-cells-emerging-concepts-for-fibrotic-scar-treatment
#10
REVIEW
Maroesjka Spiekman, Joris A van Dongen, Joep C Willemsen, Delia L Hoppe, Berend van der Lei, Martin C Harmsen
Lipofilling or lipografting is a novel and promising treatment method for reduction or prevention of dermal scars after injury. Ample anecdotal evidence from case reports supports the scar-reducing properties of adipose tissue grafts. However, only a few properly controlled and designed clinical trials have been conducted thus far on this topic. Also, the underlying mechanism by which lipofilling improves scar aspect and reduces neuropathic scar pain remains largely undiscovered. Adipose-derived stromal or stem cells (ADSC) are often described to be responsible for this therapeutic effect of lipofilling...
February 3, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27893580/the-effects-of-adipose-derived-stem-cell-differentiated-adipocytes-on-skin-burn-wound-healing-in-rats
#11
Yu-Wen Chen, Tabita Timeea Scutaru, Nicolae Ghetu, Eugen Carasevici, Cristian Dumitru Lupascu, Dan Ferariu, Dragos Pieptu, Corneliu-George Coman, Mihai Danciu
Both adipose-derived stem cells (ADSCs) and fat grafting promote burn wound healing, but whether adipogen-derived cells using various inducers such as 3-isobutyl-1-methylxanthine (IBMX) and insulin affect wound healing is unknown. Herein, ADSC-differentiated adipogenic lineages were used in rat burn wounds to evaluate wound healing potential. ADSCs were cultivated using six different adipogenic differentiation conditions (IBMX ± insulin, IBMX for 5 days, high and low Dulbecco's modified Eagle's medium) and in vitro morphological changes and cell proliferations during adipogenic differentiation were recorded...
January 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27887867/evaluation-of-function-and-recovery-of-adipose-derived-stem-cells-after-exposure-to-paclitaxel
#12
William M Harris, Ping Zhang, Michael Plastini, Telisha Ortiz, Nikolas Kappy, Jefferson Benites, Edward Alexeev, Shaohua Chang, Ross Brockunier, Jeffrey P Carpenter, Spencer A Brown
BACKGROUND AIMS: Adipose-derived stem cells (ASCs) are considered to play a positive role in wound healing as evidenced by their increasing use in breast reconstructive procedures. After chemotherapy for breast cancer, poor soft tissue wound healing is a major problem. In the present study, the functional capabilities and recovery of ASCs after exposure to chemotherapeutic agent paclitaxel (PTX) using in vitro and ex vivo models were demonstrated. METHODS: Human ASCs were isolated from periumbilical fat tissue and treated with PTX at various concentrations...
February 2017: Cytotherapy
https://www.readbyqxmd.com/read/27883321/body-size-and-outcomes-in-dialysis-and-transplant-patients-does-it-matter
#13
REVIEW
Mehmet Sukru Sever
The terminologies of "body size", "body mass index (BMI)", "body weight", "large BMI" and "obesity" are controversial for defining the effects of "adiposity" or "fat excess" on the outcomes of dialysis and transplant patients. However, probably these terminologies will be continued to be used in the future as well, because of being older and simpler terminologies. In the general population obesity is a powerful risk factor for cardiovascular morbidity and mortality, while, it conferred a survival advantage to dialysis patients...
November 1, 2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27761084/role-of-adipose-derived-stem-cells-in-fat-grafting-and-reconstructive-surgery
#14
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/27740957/reconstruction-for-skull-base-defect-using-fat-containing-perifascial-areolar-tissue
#15
Woo Young Choi, Ki Wook Sung, Young Seok Kim, Jong Won Hong, Tai Suk Roh, Dae Hyun Lew, Jong Hee Chang, Kyu Sung Lee
Skull base reconstruction is a challenging task. The method depends on the anatomical complexity and size of the defect. We obtained tissue by harvesting fat-containing perifascial areolar tissue (PAT) for reconstruction of limited skull base defects and volume augmentation. We demonstrated the effective option for reconstruction of limited skull base defects and volume augmentation. From October 2013 to November 2015, 5 patients underwent operations using fat-containing PAT to fill the defect in skull base and/or perform volume replacement in the forehead...
June 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27739349/costal-cartilage-graft-with-perichondrium-a-possible-anti-adhesive-material
#16
Norio Fukuda, Hirotaka Asato, Kohei Umekawa, Goro Takada, Takeshi Kan, Shoichi Sasaki
BACKGROUND: Adhesion occurs as a part of the wound healing process, but it sometimes compromises patients' daily activities. The authors were looking for materials and methods that could prevent adhesion, and noticed that the costal cartilage has possibility. The anti-adhesive property of the costal cartilage was examined histologically. METHODS: Thirty-five patients with microtia who provided consent for participating in this study were enrolled between April 2008 and March 2015...
October 14, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27686484/reinforcing-the-ventral-penile-shaft-with-pedicled-fat-connective-tissues-before-urethroplasty-lowers-the-risk-for-post-urethroplasty-complications-in-hypospadias
#17
Ryo Sueyoshi, Shogo Seo, Takanori Ochi, Hiroshi Murakami, Yuta Yazaki, Masahiro Takeda, Hiroki Nakamura, Geoffrey J Lane, Atsuyuki Yamataka
PURPOSE: CHARGE is our technique for reinforcing the ventral penile shaft with pedicled pericordal/scrotal fat, pedicled perimeatal connective tissue, or a combination of these at the time of initial hypospadias surgery. Such pedicled grafts "charge" poorly developed urethral plates and thin ventral foreskin prior to urethroplasty to improve compromised vascular perfusion that could prevent post-urethroplasty complications (post-UPC). METHODS: We reviewed post-UPC in 179 staged hypospadias repair patients (1997-2015)...
December 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27679753/cytokine-rich-adipose-tissue-extract-production-from-water-assisted-lipoaspirate-methodology-for-clinical-use
#18
Jenny Lopez, Outi Huttala, Jertta-Riina Sarkanen, Ilkka Kaartinen, Hannu Kuokkanen, Timo Ylikomi
Proper functioning wound healing strategies are sparse. Adequate vascular formation to the injured area, as well as replacement of the volume loss, is fundamental in soft tissue repair. Tissue engineering strategies have been proposed for the treatment of these injury sites. Novel cell-free substance, human adipose tissue extract (ATE), has been previously shown to induce in vitro angiogenesis and adipogenesis and in vivo soft tissue formation. This study reports the translation of ATE preparation from laboratory to the operating room (OR)...
2016: BioResearch Open Access
https://www.readbyqxmd.com/read/27600980/antecedent-thermal-injury-worsens-split-thickness-skin-graft-quality-a-clinically-relevant-porcine-model-of-full-thickness-burn-excision-and-grafting
#19
Anders H Carlsson, Lloyd F Rose, John L Fletcher, Jesse C Wu, Kai P Leung, Rodney K Chan
Current standard of care for full-thickness burn is excision followed by autologous split-thickness skin graft placement. Skin grafts are also frequently used to cover surgical wounds not amenable to linear closure. While all grafts have potential to contract, clinical observation suggests that antecedent thermal injury worsens contraction and impairs functional and aesthetic outcomes. This study evaluates the impact of antecedent full-thickness burn on split-thickness skin graft scar outcomes and the potential mediating factors...
February 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/27574793/adipose-tissue-derived-microvascular-fragments-improve-vascularization-lymphangiogenesis-and-integration-of%C3%A2-dermal-skin-substitutes
#20
Florian S Frueh, Thomas Später, Nicole Lindenblatt, Maurizio Calcagni, Pietro Giovanoli, Claudia Scheuer, Michael D Menger, Matthias W Laschke
Full-thickness skin defects can be covered with dermal skin substitutes in combination with split-thickness skin grafts. However, slow vascularization of the matrices bears the risk of wound infection and extends the length of hospitalization. To overcome these problems, we describe a promising vascularization strategy. Green fluorescent protein(+) adipose tissue-derived microvascular fragments (ad-MVF) were isolated from epididymal fat pads of C57BL/6-Tg(CAG-EGFP)1Osb/J mice. ad-MVF were seeded on collagen-glycosaminoglycan matrices, which were implanted into full-thickness skin defects in the dorsal skinfold chamber of wild-type C57BL/6 mice...
January 2017: Journal of Investigative Dermatology
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