235,746 results match your criteria: "Plastic Surgery; UCLA Medical Center; Los Angeles[Affiliation]"

Adipose-derived stem cells regulate mitochondrial dynamics to alleviate the aging of HFF-1 cells.

In Vitro Cell Dev Biol Anim

January 2025

Department of Outpatient Service, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, China.

The objective of this study is to explore how adipose-derived stem cells (ASCs) regulate mitochondrial structure and function and the impact of this regulation on slowing cellular senescence. HFF-1 cells were induced by HO to establish a cellular senescence model, and ASCs or Mdivi-1 (mitochondrial fission inhibitor) was added. MTT examined the cell proliferation; flow cytometry detected mitochondrial membrane potential as well as apoptosis and cell cycle; kit measured ATP production; ELISA analyzed the levels of interleukin-6 (IL-6), interleukin 1 beta (IL-1β), tumor necrosis factor alpha-like (TNF-α), glutathione (GSH), malondialdehyde (MDA), and superoxide dismutase (SOD); Western blotting and qRT-PCR detected the expression of protein and mRNA levels; and β-galactosidase staining observed the degree of cellular senescence.

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Alcohol drinking leads to sex-dependent differentiation of T cells.

Eur J Trauma Emerg Surg

January 2025

Department of Trauma Surgery and Orthopedics, Goethe University, University Hospital, Frankfurt, Germany.

Objective: Global per capita alcohol consumption is increasing, posing significant socioeconomic and medical challenges also due to alcohol-related traumatic injuries but also its biological effects. Trauma as a leading cause of death in young adults, is often associated with an increased risk of complications, such as sepsis and multiple organ failure, due to immunological imbalances. Regulatory T cells play a crucial role in maintaining immune homeostasis by regulating the inflammatory response.

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Prognosis of Implant-Based Breast Reconstruction After Mastectomy Flap Necrosis: Predictors of Failure and Salvage.

Aesthetic Plast Surg

January 2025

Department of Plastic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.

Background: In the realm of implant-based breast reconstruction, mastectomy flap necrosis (MFN) is a prevalent yet grave complication that poses a threat to the stability of the inserted prosthesis. Although numerous investigations have scrutinized the risk factors for MFN development, few have delved into the aftermath, specifically implant failure or salvage. This study seeks to appraise the prognosis of the implanted prosthesis following MFN occurrence, as well as identify predictors of such outcomes.

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Mending a World of Problems: 12-Year Review of Medical Tourism Inbound Complications in a Tertiary Centre.

Aesthetic Plast Surg

January 2025

Department of Plastic and Reconstructive Surgery, Rambam Health Care Campus, 8thHa'Aliya Hashniya st, Haifa, Israel.

Background: Medical tourism is a rapidly expanding multi-billion-dollar industry. Reduced costs, all-inclusive vacation packages that include cosmetic surgery, globalization, and affordable flight expenses have encouraged patients to seek aesthetic procedures in different countries. Cosmetic medical tourism is associated with high complication rates, such as severe infections, wound dehiscence, pain or discomfort, aesthetic dissatisfaction, and even death.

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Introduction: Reconstructing large bone defects for lower limb salvage in the pediatric population remains challenging due to complex oncological or septic issues, limited surgical options, and lengthy procedures prone to complications. The vascularized double-barreled fibula free flap is pivotal for reconstructing large bones. In this article, we report our experience with this technique in the surgical management of pediatric tibial bone defects.

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Background: Acetylsalicylic acid (ASA) has been used in reconstructive microsurgery since the inception of the field. However, when compared to placebo groups, its efficacy is not confirmed. In our study, we hypothesize that the utility of ASA postoperatively in microvascular surgery is not associated with improved outcomes.

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Background: Understanding patient goals for metoidioplasty and phalloplasty gender-affirming surgery (MaPGAS) is paramount to achieving satisfactory, preference-sensitive outcomes, yet there is a lack of understanding of MaPGAS priorities and how these may vary between transgender men and non-binary individuals assigned female at birth (AFAB).

Aim: To understand the surgical goals of transgender men and non-binary individuals AFAB considering MaPGAS.

Methods: An online survey was created following literature review and qualitative interviews and distributed via social media and a community health center to participants AFAB aged ≥18 years who had considered but not yet undergone MaPGAS.

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Choosing 'Less' Wisely as a marker of decisional conflict.

BMJ Qual Saf

January 2025

Division of Plastic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.

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Labial adhesion in a reproductive-age woman is a rare entity. A woman in her 30s presented with complaints of passage of urine and menstrual blood from the same opening since menarche. The patient underwent some corrective surgery for the same, but the symptoms did not resolve.

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This prospective, observational cohort study compares the clinical and radiographic outcomes of the modified Weaver and Dunn (WD) technique with the newer, anatomical double-button plus tendon allograft technique (DB), and the suture anchor repair plus tendon allograft (SA). The study cohort includes 53 patients, who underwent surgery for acromioclavicular joint (ACJ) dislocation Rockwood type 3, 4 and 5. Patient-reported outcome scores and clinical results, including Disabilities of the Arm, Shoulder and Hand (DASH), the Subjective Shoulder Value (SSV), the Visual Analogue Scale (VAS) and the Constant score (CS) results as well as loss of reduction rates on plain radiographs were compared.

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Purpose: Rose Bengal Photodynamic Therapy (RB-PDT) offers dual therapeutic benefits by enhancing corneal stiffness and providing antibacterial activity, presenting significant potential for patients with keratoconus complicated by keratitis. Our purpose was to assess the effect of rose bengal photodynamic therapy (RB-PDT) on the expression of pro-inflammatory cytokines and chemokines, as well as on extracellular matrix (ECM)-related molecules, in lipopolysaccharide (LPS)-induced inflammation of keratoconus human corneal fibroblasts (KC-HCFs). Additionally, the involvement of the mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) signaling pathways which are downstream of the Toll-like receptor 4 (TLR4) pathway were examined.

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Subungual melanoma accounts for 1.9% of cutaneous melanomas. Amelanotic cases, comprising 15-25%, poses a significant diagnostic challenge because it can be misdiagnosed as other traumatic, inflammatory, or neoplastic conditions.

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Background: The formation of heterotopic ossification (HO) is a common complication after transosseous partial foot amputation. Development of HO in weightbearing and/or superficial areas can lead to increased pressures, which increases the likelihood of wound formation and pain. Current treatment modalities for HO of the foot include mechanical off-loading and surgical resection; however, prophylactic measures such as nonsteroidal anti-inflammatory drugs, bisphosphonates, and other medical therapies have been attempted previously with mixed efficacy.

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Musculoskeletal infections are common among people who inject drugs. Little is known about the prevalence and characteristics of skin and soft-tissue infections in this patient population, especially in the lower extremity. The aim of this study is to describe the clinical characteristics, bacterial pathogens, and clinical outcomes in adults with foot infections due to intravenous drug use.

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Masquelet's induced membrane technique in the upper limb: a systematic review of the current outcomes.

J Orthop Traumatol

January 2025

Unità Operativa di Ortopedia e Traumatologia, APSS Trento, Largo Medaglie d'oro, 9, 38121, Trento, Italy.

Background: The Masquelet induced membrane technique is a surgical procedure that allows the reconstruction of segmental bone defects using a relatively simple approach that requires minimal resources from both the healthcare facility and the patient. Historically applied to the lower limb, this technique is gaining increasing attention in the literature for its use in the upper limb.

Methods: A systematic review of the literature was conducted using the PubMed and Google Scholar databases to identify all studies reporting the outcomes of the Masquelet induced membrane technique in the long bones of the upper limb (humerus, radius, and ulna) with a sample size of at least 3 patients.

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Upper limb lymphedema is the most common complication after breast cancer therapy. Suddenly disturbed lymphatic transport in the affected arm causes tissue fluid accumulation in tissue spaces, limb enlargement, and secondary changes in tissue. Early compression therapy is necessary.

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Introduction: Graft optimization is a necessity in order to develop uterus transplantation from brain-dead donors, as a complement to living donors, as these grafts are rare and the last organs retrieved in multiple organ donation. The aim of this study was to assess the feasibility and interest of hypothermic machine perfusion (HMP) in uterus transplantation using a porcine model; secondary outcomes were the evaluation of the graft's tolerance to a prolonged cold ischaemia time and to find new biomarkers of uterus viability.

Material And Methods: Fifteen uterus allotransplantations were performed in a porcine model, after 18 h of cold ischaemia, divided in three groups: Static cold storage in a HTK solution, HMP (with the VitaSmart (™) machine Bridge to Life Ltd.

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Comparing Perfusion of Single-Stage and Multi-Staged Paramedian Forehead Flaps Using Indocyanine Green Angiography.

Facial Plast Surg Aesthet Med

January 2025

Facial Plastic and Reconstructive Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA.

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Basal cell carcinomas are common facial malignancies with minimally invasive treatment approaches effective in the majority of cases. Recurrent aggressive lesions pose significant challenges and need wide local excision with major reconstruction. Geriatric patient with multiple comorbidities needs customized reconstructions to minimize morbidity.

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Exploring the Impact of Systemic Inflammatory Regulators on Rosacea Risk: A Bidirectional Mendelian Randomization Analysis.

Clin Cosmet Investig Dermatol

January 2025

Department of Dermatology, Changshu No. 1 People's Hospital, Changshu Hospital Affiliated to Soochow University, Changshu, Jiangsu, 215500, People's Republic of China.

Objective: Rosacea is a common chronic inflammatory disorder primarily affecting the face. While inflammatory factors are known to play a pivotal role in its pathogenesis, their causal relationship with rosacea remains unclear. This study employed a two-sample bidirectional Mendelian randomization (MR) analysis to investigate the causal links between systemic inflammatory regulators and rosacea.

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Purpose: The objective of this study is to investigate the clinical efficacy of sequentially comprehensive treatment based on surgery and to furnish clinical evidence for the management of keloids.

Patients And Methods: The patients with keloids were retrospectively analyzed who underwent surgery-based sequentially comprehensive treatment at the Plastic Surgery Department of Shandong Provincial Hospital from January 2018 to August 2021. The recurrence rate and incidence of adverse reactions were explored for all the included patients.

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Objective: This study systematically evaluated the efficacy of programmed death 1 (PD-1) inhibitors combined with chemotherapy for advanced esophageal cancer (EC).

Methods: PubMed, Embase, Web of Science, Scopus, and Cochrane Library were searched to identify related randomized controlled trials (RCTs).

Results: Seven RCTs involving 4,363 participants were included.

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Background: The presence of level IV/V metastasis is a significant prognostic factor for patients with oral and oropharyngeal cancer, while level IV lymphadenopathy defines the N3 stage in nasopharyngeal carcinoma. However, the current staging system for hypopharyngeal squamous cell carcinoma (HPSCC) does not consider the location of involved nodes.

Objectives: To evaluate the risk factors and prognostic impact of level IV/V metastasis in patients with HPSCC.

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