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Daily Report

Daily Cosmetic Research Analysis

12/15/2025
3 papers selected
3 analyzed

Across cosmetic and aesthetic medicine, a randomized trial showed multimedia-informed consent significantly improves patient comprehension before mastectomy with implant reconstruction. A mechanistic study identified IL-9 and IL-24 as key biomarkers in methylisothiazolinone-induced allergic contact dermatitis. A systematic review and single-arm meta-analysis supports tumescent liposuction for refractory lipedema, demonstrating meaningful symptom and cosmetic improvements.

Summary

Across cosmetic and aesthetic medicine, a randomized trial showed multimedia-informed consent significantly improves patient comprehension before mastectomy with implant reconstruction. A mechanistic study identified IL-9 and IL-24 as key biomarkers in methylisothiazolinone-induced allergic contact dermatitis. A systematic review and single-arm meta-analysis supports tumescent liposuction for refractory lipedema, demonstrating meaningful symptom and cosmetic improvements.

Research Themes

  • Patient education and decision quality in aesthetic plastic surgery
  • Biomarker discovery for cosmetic preservative-induced dermatitis
  • Surgical management of refractory lipedema

Selected Articles

1. Effect of a Multimedia-Assisted Informed Consent Procedure on the Information Gain of Patients Undergoing Mastectomy and Implant-Based Reconstruction.

71Level IIRCT
Aesthetic plastic surgery · 2025PMID: 41392053

In a single-center randomized prospective study (265 enrolled; 200 analyzed), a 6-minute multimedia video significantly improved comprehension for patients undergoing mastectomy with implant-based reconstruction versus standard counseling with a brochure. Anxiety and decisional conflict trended lower with multimedia but were not statistically different.

Impact: Demonstrates a scalable, reproducible method to improve informed consent quality in aesthetic breast reconstruction, aligning counseling with patients’ expectations about oncologic and cosmetic outcomes.

Clinical Implications: Integrating short multimedia videos into preoperative counseling can increase patient knowledge retention without increasing anxiety, supporting standardized, patient-centered consent for implant-based reconstruction.

Key Findings

  • Multimedia-assisted group achieved significantly higher overall comprehension than standard counseling.
  • Anxiety (STAI) and decisional conflict (DCS) trends favored multimedia but did not reach statistical significance.
  • Randomized allocation and standardized 6-minute video (illustrations + text-to-speech) enabled reproducible delivery.

Methodological Strengths

  • Randomized, prospective controlled design with adequate sample size (200 analyzed).
  • Use of validated instruments (STAI, DCS) and a standardized multimedia intervention.

Limitations

  • Single-center study with attrition from 265 enrolled to 200 analyzed.
  • Short-term assessment without long-term outcomes on satisfaction or legal/quality metrics.

Future Directions: Multicenter RCTs across languages/cultures to assess generalizability, and evaluation of long-term patient satisfaction, decisional quality, and cost-effectiveness.

INTRODUCTION: Implant-based reconstruction is the most frequent procedure after mastectomy. Effective preoperative counseling and a thorough informed consent process are crucial for informing patients about oncologic surgery, reconstruction options, and expected cosmetic outcomes. Recent studies indicate that a multimedia video-assisted informed consent procedure may enhance patient information retention compared to traditional methods. This study aims to compare the conventional informed consent process, supplemented with a written informational brochure, to a multimedia video-assisted approach. MATERIALS AND METHODS: From January to June 2024, 265 consecutive breast cancer patients scheduled for mastectomy and implant-based reconstruction at the European Institute of Oncology in Milan, Italy, were enrolled in this controlled randomized prospective study. Of these, 200 patients completed evaluation questionnaires assessing information retention and anxiety. A six-minute video featuring simple schematic illustrations and automated text-to-speech narration in Italian was developed to enhance understanding of the risks, benefits, and alternatives of the surgical treatment. Patients were randomly assigned to two groups: Group A received the video presentation along with evaluation questionnaires via email, while Group B received only the questionnaires. RESULTS: Patients in the multimedia video-assisted group demonstrated significantly higher overall comprehension compared to those in the control group. Although scores from the Spielberger State/Trait Anxiety Inventory (STAI) and the Decisional Conflict Scale (DCS) indicated greater anxiety and decisional conflict in the standard group, these differences were not statistically significant. CONCLUSIONS: The multimedia video-assisted informed consent process is an effective tool for enhancing patient knowledge and awareness regarding implant-based breast reconstruction. This method improves information uptake and retention, suggesting its superiority over traditional communication techniques in preoperative counseling. These findings support the integration of multimedia resources in patient education to facilitate better-informed decision-making. LEVEL OF EVIDENCE II: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

2. IL-9 and IL-24 biomarkers in the transcriptional signature of contact dermatitis to methylisothiazolinone.

70Level IIICase-control
Frontiers in immunology · 2025PMID: 41394797

MI-sensitized individuals displayed two response phenotypes after controlled re-exposure. High responders showed robust upregulation of IL-9, IL-24, and NTRK1 and downregulation of IL-18/IL-37, validated at transcript and protein levels, revealing mechanistic heterogeneity and candidate biomarkers/targets.

Impact: Identifies IL-9/IL-24 as biomarkers underpinning severity heterogeneity in MI-induced ACD, a common reaction to cosmetic preservatives, providing mechanistic targets for risk stratification and therapy.

Clinical Implications: Potential use of IL-9/IL-24 signatures to stratify patients with MI ACD and guide targeted anti-inflammatory strategies; may inform safety assessments and labeling for cosmetic preservatives.

Key Findings

  • Two MI response phenotypes identified (high vs low responders) despite uniformly positive patch tests.
  • High responders exhibited 1,588 upregulated and 2,090 downregulated genes vs low responders, including IL-9, IL-24, IL-13, NTRK1 up and IL-18, IL-37 down.
  • qPCR and protein analyses confirmed increased IL-9/IL-24 and reduced IL-18; dermal IL-9/IL-24 levels were elevated.

Methodological Strengths

  • Integrated histopathology, RNA-seq, qPCR, and protein-level validation.
  • Inclusion of MI-negative controls and controlled re-exposure with timed biopsies.

Limitations

  • Sample size and detailed cohort characteristics are not specified in the abstract.
  • Single-center study without functional in vivo validation; generalizability requires external replication.

Future Directions: Validate IL-9/IL-24 as serum/skin biomarkers in larger, multi-center cohorts; test therapeutic modulation of these axes in interventional studies.

INTRODUCTION: Allergic contact dermatitis (ACD) is a cutaneous inflammatory disorder mediated by allergen-specific memory T cells. Methylisothiazolinone (MI), a preservative widely used in industrial and cosmetic products and a component of Kathon CG, has led to a substantial rise in ACD cases. Despite increasing sensitization rates, the innate immune mechanisms and transcriptional responses induced by MI in the skin remain poorly understood. METHODS: Individuals with positive patch tests exclusively to MI were recruited at the Contact Dermatitis Clinic of Hospital das Clínicas (São Paulo). Participants were re-exposed to MI or saline, and skin biopsies were collected 48 hours later. Healthy MI-negative controls were also exposed to MI and saline. Histopathology and RNA-sequencing were performed. Differentially expressed genes (DEGs) were analyzed, and key findings were validated by qPCR and protein expression of IL-9 and IL-24. RESULTS: Two distinct MI-responsive groups emerged among ACD patients:ACD-A (high responders): pronounced histopathology (spongiosis, microvesicles). ACD-B (low responders): milder reactions with absence of spongiosis. In ACD-A, MI exposure resulted in 1,588 upregulated and 2,090 downregulated genes compared to ACD-B. DEGs were enriched for innate immune and inflammatory pathways, including IL-24, IL-9, IL-13, and NTRK1 (upregulated), while IL-37 and IL-18 were downregulated. Compared to MI-negative ACD controls, ACD-A showed 1,169 upregulated and 321 downregulated genes. qPCR confirmed increased NTRK1 and IL-9 expression and reduced IL-18 levels. IL-9 and IL-24 protein levels were higher in the dermal layer of ACD-A. DISCUSSION AND CONCLUSION: MI-sensitized individuals exhibit heterogeneous innate immune responses despite uniformly positive patch tests. IL-9, IL-24, and NTRK1 appear to play important roles in the heightened inflammatory response observed in high-responder individuals, while downregulation of IL-18 and IL-37 may contribute to impaired regulatory pathways. These findings highlight previously undescribed heterogeneity in MI-induced ACD and identify potential targets for better understanding disease pathogenesis.

3. Efficacy and Safety of Surgical Intervention in Refractory Lipedema: A Systematic Review and Single-Arm Meta-Analysis.

65.5Level IVMeta-analysis
Aesthetic plastic surgery · 2025PMID: 41392052

This PRISMA-compliant single-arm meta-analysis pooled 6 retrospective studies (429 patients) and found that tumescent liposuction for refractory lipedema significantly reduced pain, tenderness, swelling, and movement restriction over 6–44 months of follow-up. Cosmetic outcomes and quality of life improved, though higher-quality comparative trials are still needed.

Impact: Aggregates clinical benefits of surgical intervention in lipedema, a condition with high symptom burden and cosmetic impact, providing quantitative guidance for patient counseling and treatment planning.

Clinical Implications: For patients refractory to conservative therapy, tumescent liposuction can be considered with expectations of improved pain, edema, mobility, and cosmetic appearance; standardized outcomes and long-term safety monitoring are recommended.

Key Findings

  • Pooled mean pain score decreased from 5.64 to 1.19 after tumescent liposuction.
  • Sensitivity to touch/pressure decreased from 5.77 to 1.96; swelling improved from 5.47 to 2.14.
  • Restriction of movement decreased from 3.76 to 0.77 with follow-up ranging 6–44 months.

Methodological Strengths

  • PRISMA-compliant systematic review with quantitative pooling across six studies.
  • Follow-up durations sufficient to capture clinical outcomes and adverse events.

Limitations

  • Single-arm meta-analysis pooling retrospective studies without control groups.
  • Potential heterogeneity in measures and risk of bias across included studies.

Future Directions: Randomized or controlled comparative studies with core outcome sets, cost-effectiveness analyses, and standardized reporting of complications and patient-reported outcomes.

INTRODUCTION: Lipedema is a chronic inflammatory disease characterized by symmetrical deposition of adipose tissue in the upper and lower limbs, disproportionate to the trunk. It primarily affects women. The objective of this study was to evaluate the effects of surgical treatment in patients with lipedema who are refractory to conservative management. METHODS: We conducted a systematic review and single-arm meta-analysis in accordance with PRISMA guidelines. Retrospective studies involving patients who underwent surgical treatment after failing clinical management were included. Means and proportions were pooled using the inverse variance method and logit transformations, and heterogeneity was assessed using the I RESULTS: We included 6 studies comprising 429 patients, with follow-up ranging from 6 months to 44 months. In this meta-analysis, surgical treatment with tumescent liposuction resulted in significant clinical improvements for patients with lipedema. The pooled mean preoperative pain score was 5.64 (95% CI: 3.67-8.69), which decreased to 1.19 (95% CI: 0.91-4.22) postoperatively. Sensitivity to touch or pressure was reduced from a preoperative mean of 5.77 (95% CI: 4.10-8.10) to 1.96 (95% CI: 1.17-3.29) after surgery. Swelling scores improved from 5.47 (95% CI: 3.73-8.02) preoperatively to 2.14 (95% CI: 1.31-3.48) postoperatively, while restriction of movement scores decreased from 3.76 (95% CI: 2.48-5.72) to 0.77 (95% CI: 0.36-1.64). CONCLUSION: The results of this single-arm meta-analysis, which included six studies and 429 patients with lipedema refractory to clinical treatment and undergoing surgical intervention, demonstrate that tumescent liposuction is associated with reductions in postoperative pain and edema, as well as improvements in cosmetic outcomes, quality of life, and mobility. The duration of follow-up was adequate to capture relevant clinical outcomes and adverse events. However, lipedema remains a condition that requires further high-quality studies to define the optimal therapeutic approach. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 ."