Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Luze, H; Einsiedler, J; Nischwitz, SP; Winter, R; Kolb, D; Kamolz, LP; Kotzbeck, P; Rappl, T.
Quality and Vitality of Autologous Fat Grafts Harvested by Different Techniques: A Clinical Comparison Study.
Aesthet Surg J. 2022; 42(12):1416-1424
Doi: 10.1093/asj/sjac192
Web of Science
PubMed
FullText
FullText_MUG
- Leading authors Med Uni Graz
- Luze Hanna
- Co-authors Med Uni Graz
- Kamolz Lars-Peter
- Kolb Dagmar
- Kotzbeck Petra
- Nischwitz Sebastian
- Rappl Thomas
- Winter Raimund
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- Abstract:
- BACKGROUND: Unpredictable outcomes with autologous fat grafting due to reabsorption processes present a major challenge for healthcare providers and patients. A higher number of viable adipocytes is considered to result in a higher volume being retained. Although various adverse factors have been extensively researched, other potential parameters have been less investigated or even neglected. OBJECTIVE: The aim of this study was to investigate the harvesting process of adipose tissue as the primary cause of cell damage and to determine the risk factors associated with low cell survival. METHODS: Thirty-nine male and female subjects undergoing planned elective liposuction or abdominoplasty were enrolled. Forty-seven lipoaspirates harvested by different liposuction techniques were analyzed. RNA isolation and real-time polymerase chain reaction was performed to elucidate differences in the expression of various adipocyte markers. Furthermore, scanning electron microscopy was performed on various samples to determine the cell damage caused by the different techniques. RESULTS: A statistically significant lower expression of peroxisome proliferator-activated receptor γ was detected in subjects with a higher BMI. A trend towards a lower expression of perilipin 1 in lipoaspirates harvested by a super wet + ultrasound technique, compared with dry and super wet techniques, was shown. The lowest level of cell damage determined from scanning electron microscopy images was in lipoaspirates harvested by the super wet + ultrasound technique, and this level was statistically significantly different from those obtained by the 2 other techniques. CONCLUSIONS: Optimization of the outcome in autologous fat grafting may be feasible by targeting and optimizing the harvesting process as a main risk factor for impaired adipocyte viability. Ultrasound-assisted liposuction might be considered a suitable harvesting technique.
- Find related publications in this database (using NLM MeSH Indexing)
- Humans - administration & dosage
- Male - administration & dosage
- Female - administration & dosage
- Tissue and Organ Harvesting - adverse effects
- Lipectomy - adverse effects, methods
- Adipocytes - transplantation
- Adipose Tissue - transplantation
- Transplantation, Autologous - administration & dosage
- Cell Survival - administration & dosage