Publications by authors named "Gui-e Ma"

Aim: A keloid is a fibroproliferative cutaneous disorder secondary to skin injury, caused by an imbalance in fibroblast proliferation and apoptosis. However, the pathogenesis is not fully understood. In this study, candidate genes for keloid were identified and used to construct a diagnostic model.

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Background: Gluteal ptosis results in a severe disturbance of gluteal aesthetics. Currently, satisfactory procedures for improving gluteal ptosis are lacking.

Objectives: To improve gluteal ptosis, the authors propose a novel concept of combined liposuction of the lower gluteal region and fat grafting to the upper gluteal and infragluteal regions, and verify its efficacy and safety.

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Background: Fullness of the perioral mound is considered a dissatisfying aspect of premature aging and has become a common complaint of patients seeking facial rejuvenation.

Objectives: The authors propose a novel concept of improving perioral mound fullness by liposuction and verify its safety and efficacy through cadaver and clinical studies.

Methods: A cadaver study was conducted to discover the soft tissue structure of the perioral mound region and identify a vital use for liposuction.

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Background: Gluteal ptosis is a common complication of circumferential liposuction of the thigh. The authors propose a novel concept of combining circumferential liposuction of the thigh with concomitant fat transplantation to the infragluteal/posterior thigh junction region to prevent postliposuction gluteal ptosis.

Methods: Patients underwent circumferential liposuction of the thigh with or without concomitant fat transplantation from 2015 to 2020 and were retrospectively reviewed.

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Background: An ovoid, slender face with a smooth contour is preferred in oriental esthetics. We developed a novel concept to achieve a slimmer and harmonious midface contour by liposuction of the projection area of the zygomatic arch.

Methods: A cadaver study including anatomical dissection and histologic examination were conducted to better understand the soft tissue structure of the projection area of the zygomatic arch and the vital technique for liposuction.

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Unlabelled: Since the authors are not responding to the editor’s requests to fulfill the editorial requirement, therefore, the article has been withdrawn by mutual agreement between the editors and the publisher. Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused. The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.

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Lip deformities that occur after treatment of vascular anomalies treatment are often followed by serious local cicatricial adhesion and mucosa atrophy that can complicate reconstruction methods involving simple fat grafting or local flap transfer. To develop a novel technique that combines flap transfer with nanofat grafting that can be used to reconstruct the upper lip after treatment of vascular anomalies. A retrospective study of a consecutive series of 24 patients with upper lip deformities (13 female and 11 male) aged between 7 and 24 years old was conducted.

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Background: Upper arm liposuction mainly focuses on the posterolateral region, which may lead to a lack of harmony between the aspirated and unaspirated areas. In addition, the treatment effect of arm liposuction is often evaluated only by preoperative and postoperative photograph comparison and simple measurement; quantitative research on this topic is still lacking.

Methods: The multi-positional circumferential arm liposuction (MCAL) technique was proposed and applied to a total of 34 females in our hospital from 2017 to 2019.

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Objective: In Asia, the temporal hollowing is considered to be a sign of bad fortune and aging. Many people demand to correct the temporal hollowing with fat grafting. Subsequently, the temporal hypertrophy secondary to fat grafting become more and more.

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Effects of lentinan on nuclear factor-κB (NF-κB) activity in liver of burn rats with sepsis were investigated. To mimic the clinical sepsis after burn, rats were subjected to 30% full-thickness scald injury, followed by intraperitoneal (i.p.

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Backgrounds: Many aging women with upper lid dermatochalasis pluck their lower lateral eyebrows to combat lateral drooping. The authors present and evaluate outcomes of a modified excision blepharoplasty method performed using a transbrow excision approach instead of infra/suprabrow access to more efficiently correct upper eyelid dermatochalasis.

Methods: The authors conducted a retrospective review of 192 patients who underwent transbrow excision blepharoplasty (TBEB) between 2014 and 2019 at the Plastic Surgery Hospital of Beijing in China.

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Background: Autologous fat grafting is common in facial reconstructive and cosmetic surgeries; the most important drawbacks are the high absorption rate and unpredictable volume retention rate. Surgeons usually make clinical judgements based on their own experience. Therefore, this study aimed to systematically and quantitatively review the volume retention rate of facial autologous fat grafting and analyse the relevant influencing factors.

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Background: A facial depression deformity secondary to lupus erythematosus panniculitis results from fat necrosis, which seriously alters the patients' appearance and thus affects their psychological health. Few studies have discussed the repair of depression deformities. The authors repaired depression deformities due to atrophic lesions by using autologous fat grafting to obtain volumetric restoration of the facial skin, and the authors report our outcomes.

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Adipose-derived stem cell (ADSC) is considered as a cell source potentially useful for angiogenesis in tissue engineering and regenerative medicine. This study investigated the growth and endothelial differentiation of human ADSCs on polyglycolic acid/polylactic acid (PGA/PLA) mesh compared to 2D plastic. Cell adhesion, viability, and distribution of hADSCs on PGA/PLA mesh were observed by CM-Dil labeling, live/dead staining, and SEM examination while endothelial differentiation was evaluated by flow cytometry, Ac-LDL/UEA-1 uptake assay, immunofluorescence stainings, and gene expression analysis of endothelial related markers.

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Background: It is important to protect fat viability during grafting. This study aimed to clarify whether physical or chemical factors damage fat viability.

Methods: Fat was harvested under high and low tumescence pressure, using syringes and a liposuction machine; this fat was injected through different gauge needles and cultured with lidocaine or epinephrine.

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Human adipose-derived stromal cells (hASCs) are a promising cell source for bone tissue engineering. However, before the clinical application of hASCs for the treatment of bone defects, key questions require answers, including whether pre-osteoinduction (OI) and flow cytometric cell purification are indispensible steps for in vivo bone formation by hASCs. In this study, hASCs were purified by flow cytometric cell sorting (FCCS).

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Objective: To explore the effect of human adipose-derived stromal cells (hASCs) on the osteogenesis during the process of bone formation in vivo, and to lay the foundation of further investigations on the mechanism of in vivo osteogenesis of hASCs.

Methods: hASCs were isolated from adipose tissue by the method of collagenase digestion, and were routinely proliferated and passaged. In the in vivo study 16 nude mice were used and 4 groups were set and implanted subcutaneously into the back of nude mice: (1) blank; (2) β-tricalcium phosphate (β-TCP) scaffold only (scaffold control group); (3) β-TCP scaffold with human fibroblasts (negative cell control group); (4) β-TCP scaffold with hASCs (test group).

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Human adipose-derived stromal cells (hASCs) can be obtained from adipose tissues that offer an abundant and easily accessible pool of stem cells. Thus, hASCs have become a highly attractive source of seed cells in bone tissue engineering and have promising prospects in bone regeneration. Since 2002, our research group has performed a series of experiments on hASCs and its application in bone tissue engineering, including: to substitute dexamethasone by 1,25 (OH)₂ vitamin D₃ to induce osteogenic differentiation of hASCs; to explore the effect of epigenetic regulation and to inflammation on the osteogenic differentiation of hASCs; to construct a novel and simple tissue engineered bone system by hASCs and human platelet-rich plasma (hPRP) and to investigate the bone formation capability of this tissue engineered bone and the stimulatory effect of simvastatin.

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Objective: To investigate the osteogenic capability of primary human adipose-derived stromal cells (hASCs) in vivo.

Methods: hASCs were isolated from adipose tissue by the method of collagenase digestion. After 7 and 14 days of osteogenic induction, alkaline phosphatase (ALP) staining and Alizarin Red staining were performed to test the osteogenic potential of hASCs in vitro.

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Objective: To investigate the feasibility of one-staged treatment of large skin lesions by excision combined with liposuction.

Methods: 40 skin lesions in 35 cases, which were located at upper arm, thigh, abdomen, lumbus or buttocks, were excised after liposuction at the anatomic sites around the lesion. The wounds were closed by advancing the sliding flaps resulted from liposuction.

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Histone methylation is regarded as an important type of histone modification defining the epigenetic program during the lineage differentiation of stem cells. A better understanding of this epigenetic mechanism that governs osteogenic differentiation of human adipose-derived stromal cells (hASCs) can improve bone tissue engineering and provide new insights into the modulation of hASC-based cell therapy. Retinoblastoma binding protein 2 (RBP2) is a histone demethylase that specifically catalyzes demethylation of dimethyl or trimethyl histone H3 lysine 4 (H3K4me2 or H3K4me3), which is normally associated with transcriptionally active genes.

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Objective: To explore the effect of retinoblastoma binding protein 2 (RBP-2), a histone H3K4 demethylase, on osteogenic differentiation of human adipose-derived stromal cell (hASC).

Methods: According to the GenBank sequence information of RBP-2, four different small interfering RNAs (siRNA) targeting RBP-2 gene were designed and the corresponding short hairpin RNAs (shRNA) were cloned into pLL 3.7 lentivirus RNA interference vector.

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Objectives: The repair of skin defects resulting from the excision of large skin disorders is always challenging for surgeons as many methods have varied disadvantages. Therefore, we attempt to overcome frequent disadvantages of other surgical methods in repairing skin defects with the help of liposuction.

Methods: Before excision of skin disorders, liposuction was performed in regions where they were located followed by complete excision.

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Objective: To study the effect of large-volume liposuction on adipokines, inflammatory markers and insulin resistance and its significance.

Methods: The levels of serum adiponectin, resistin, IL-6, TNF-alpha, CRP and insulin sensitivity were measured pre- and 3 months postoperatively in 16 consecutive patients undergoing liposuction.

Results: The adiponectin postoperative [(5.

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