Daily Cosmetic Research Analysis
A network meta-analysis of randomized trials in Bowen's disease ranks treatments by initial and long-term clearance while integrating cosmetic outcomes. A multifunctional injectable hydrogel prevented postoperative adhesions in rats, suggesting a potential translational biomaterial. A multi-institutional study demonstrates that vocal gender dysphoria impairs work productivity, supporting reclassification of voice care as medically necessary rather than cosmetic.
Summary
A network meta-analysis of randomized trials in Bowen's disease ranks treatments by initial and long-term clearance while integrating cosmetic outcomes. A multifunctional injectable hydrogel prevented postoperative adhesions in rats, suggesting a potential translational biomaterial. A multi-institutional study demonstrates that vocal gender dysphoria impairs work productivity, supporting reclassification of voice care as medically necessary rather than cosmetic.
Research Themes
- Balancing oncologic efficacy with cosmetic outcomes in dermatologic surgery
- Translational biomaterials to prevent postoperative complications
- Reframing 'cosmetic' care as reconstructive based on functional impairment
Selected Articles
1. Interventions for Bowen's disease: A systematic review and network meta-analysis of randomized controlled trials.
Across nine RCTs, laser-assisted photodynamic therapy ranked highest for initial clearance, surgery for long-term clearance, and PDT/LA-PDT/5-FU achieved the most favorable cosmetic outcomes. Cryotherapy and imiquimod ranked lowest for both initial and long-term clearance. The review was PROSPERO-registered and used Cochrane risk-of-bias assessments, though heterogeneity and bias were noted.
Impact: This is the first network meta-analysis to rank Bowen's disease interventions by both efficacy and cosmetic outcomes, directly informing shared decision-making.
Clinical Implications: For lesions where cosmesis matters, PDT or LA-PDT can be prioritized; if durable long-term clearance is paramount, surgery remains preferred. Counseling should address the trade-offs, particularly the lower clearance with cryotherapy or imiquimod.
Key Findings
- LA-PDT ranked first for initial lesion clearance; surgery and laser ablation followed.
- Surgery ranked first for long-term clearance; LA-PDT and PDT followed.
- PDT, LA-PDT, and 5-FU had the best cosmetic outcomes; surgery had the worst.
- Cryotherapy and imiquimod ranked lowest for both initial and long-term clearance.
Methodological Strengths
- PROSPERO pre-registration (CRD42024583966)
- Cochrane risk-of-bias 2.0 assessments and network meta-analytic ranking across RCTs
Limitations
- Moderate-to-high risk of bias and heterogeneity across included trials
- Limited number of head-to-head comparisons and variable outcome definitions
Future Directions: Conduct adequately powered head-to-head RCTs (e.g., LA-PDT vs surgery vs PDT) with standardized cosmetic outcome measures and long-term follow-up.
Bowen's disease (BD) is an intraepidermal malignancy that may progress to skin cancer, yet no study has compared interventions from randomized controlled trials (RCT). We synthesized RCT data to calculate lesion-specific initial clearance rates, long-term clearance rates, and cosmetic outcomes relative to placebo. We searched MEDLINE, EMBASE, CENTRAL and trial registers up to September 30, 2024, and included nine studies (672 patients, 844 lesions). Interventions compared to placebo and ranked via network meta-analysis included surgery, imiquimod, photodynamic therapy (PDT), laser ablation (LA), laser-assisted PDT (LA-PDT), cryotherapy and 5-fluorouracil (5-FU). Bias was assessed using the revised Cochrane risk-of-bias tool. The study was registered in PROSPERO prior to data extraction (CRD42024583966). All interventions showed higher lesion-specific clearance rates than placebo. Regarding initial clearance, LA-PDT ranked first, followed by surgery and LA. Surgery ranked first for long-term clearance, followed by LA-PDT and PDT. Cryotherapy and imiquimod ranked lowest for initial clearance and long-term clearance. PDT, LA-PDT, and 5-FU showed the best cosmetic outcome, while surgery had the worst. Limitations included moderate to high bias and study heterogeneity. Our findings support clinical decision-making for
2. An Injectable Zwitterionic Hydrogels with Multiple Intermolecular Interactions for Effective Prevention of Abdominal Adhesions.
An injectable zwitterionic hydrogel (PSA-ZnO) prevented postoperative peritoneal adhesions in rats at 7 and 14 days and outperformed a commercial hyaluronic acid barrier. It combined antifouling, antibacterial, hemostatic, and pro-healing effects while limiting fibrin organization and foreign body response.
Impact: This multifunctional material strategy addresses a long-standing unmet need in surgery by preventing adhesions without compromising inflammation control, with clear translational potential.
Clinical Implications: If safety and efficacy translate to humans, PSA-ZnO could reduce postoperative adhesions across abdominopelvic and aesthetic surgeries, lowering reoperations, pain, and bowel obstruction risk.
Key Findings
- Complete prevention or full reduction of peritoneal adhesion severity in rats at 7 and 14 days post-surgery.
- Outperformed commercial hyaluronic acid gel; antibacterial clearance >95% for E. coli and S. aureus.
- Rapid hemostasis (55 s) and favorable wound-healing milieu (reduced IL-6/TNF-α, increased VEGF).
- Inhibited blood clot organization and pathologic fibrin accumulation, limiting foreign body response.
Methodological Strengths
- In vivo rat model with multiparametric evaluation (microbiology, hemostasis, cytokines, histology)
- Rational material design leveraging multiple intermolecular interactions for injectability and mechanical stability
Limitations
- Preclinical animal study without human data
- Short follow-up (up to 14 days) and no large-animal validation; biocompatibility and degradation kinetics in humans unknown
Future Directions: Evaluate long-term performance, dosing, and degradation in large-animal models, followed by early-phase clinical trials assessing adhesion scores and safety.
Postoperative abdominal adhesions are the most common complication following abdominopelvic surgery, posing a significant burden on patients, clinicians, and society. However, current physical barriers often involve a tradeoff between preventing these adhesions and inhibiting inflammation. Herein, a one-stone-two-birds strategy is presented to address this challenge through an injectable intertwined hydrogel containing sulfobetaine, modified aminocaproic acid (A6ACA), and ZnO nanoparticles (PSA-ZnO hydrogel). This intertwined network is stabilized by multiple intermolecular coordination bonds, including hydrogen bonds and electrostatic interactions-enabling facile injection and resistance to abdominal creep stress. Experimental results demonstrate that PSA-ZnO hydrogel fully reduce the severity of peritoneal adhesions in treated rats at both 7- and 14-days post-surgery, outperforming commercially available hyaluronic acid (HA) gel due to its superior antifouling, antibacterial (> 95% clearance of E. coli and S. aureus,), hemostatic (55 s), and wound healing properties (IL-6 and TNF-α decreased and VEGF increased). Unlike conventional barriers, PSA-ZnO prevents foreign body formation by inhibiting blood clot organization and pathologic fibrin accumulation at wound sites. This integrated approach offers a clinically translatable solution for complete prevention of postoperative adhesions and inflammation, with the potential to improve patient outcomes and reduce healthcare burdens.
3. Impaired Voice-Related Work Productivity, a Functional Effect of Gender Dysphoria.
In a multi-institutional cross-sectional study of 100 participants without vocal pathology, transgender individuals had significantly higher VHI-10 and WorkHoarse scores than cisgender individuals. After adjusting for age and occupational voice use, WorkHoarse scores were 12.4 points higher (95% CI 9.7–15.0), indicating functional impairment tied to gender dysphoria.
Impact: By demonstrating objective functional impairment, this study supports the medical necessity of voice therapies/surgeries for gender dysphoria, challenging the view that they are merely cosmetic.
Clinical Implications: Clinicians, payers, and policy-makers can use these data to justify coverage and access to voice therapy and phonosurgery as reconstructive, function-restoring care. Preoperative counseling should address work-related voice demands.
Key Findings
- Transgender participants had higher VHI-10 (16.2 vs 2.7, p<0.001) and WorkHoarse (14.2 vs 2.1, p<0.001) scores than cisgender participants.
- Adjusted analysis showed a 12.4-point higher WorkHoarse score in transgender individuals (95% CI 9.7–15.0).
- Participants with pre-existing vocal pathology were excluded, isolating the effect of gender dysphoria on voice-related function.
Methodological Strengths
- Multi-institutional recruitment with exclusion of vocal pathology
- Use of validated instruments (VHI-10, WorkHoarse) and adjusted regression analyses
Limitations
- Cross-sectional design limits causal inference and lacks longitudinal outcomes
- Sample size is modest and may limit subgroup analyses; self-reported measures
Future Directions: Prospective longitudinal studies to link voice interventions with changes in productivity and health economic outcomes, and to stratify by gender identity and occupational voice demands.
OBJECTIVES: Treatment for vocal gender dysphoria has historically been considered cosmetic due, in part, to the lack of anatomic or neurologic vocal pathology. Treatment of other anatomically typical conditions is considered reconstructive when there is an associated functional impairment, but this case has not been made in vocal gender dysphoria. This study aims to identify functional impairment associated with vocal gender dysphoria, specifically impairment in voice related work productivity. METHODS: Cis- and transgender individuals were recruited in a multi-institutional cross-sectional study. Patients with pre-existing vocal pathology were excluded. VHI-10 and WorkHoarse, a measure of voice related work productivity impairment scored between 0, no impairment, and 32, maximal impairment, were obtained. RESULTS: Fifty cisgender and 50 transgender individuals were recruited. The transgender group included 64% trans women, 10% trans men, and 26% nonbinary or other gender non-conforming individuals. Average VHI-10 and WorkHoarse were higher in the transgender group than in the cisgender group (16.2 vs. 2.7, p < 0.001; and 14.2 vs. 2.1, p < 0.001, respectively). Multiple linear regression controlling for age and volume of voice use at work showed that transgender individuals had a WorkHoarse score 12.4 units higher than cisgender individuals (95% confidence interval 9.7-15.0). CONCLUSIONS: Gender dysphoria is associated with impaired voice related work productivity. This study identifies a functional impairment associated with vocal gender dysphoria, which fulfills one of multiple criteria used to define medically necessary and reconstructive interventions.