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Daily Report

Daily Cosmetic Research Analysis

04/18/2026
3 papers selected
17 analyzed

Analyzed 17 papers and selected 3 impactful papers.

Summary

Analyzed 17 papers and selected 3 impactful articles.

Selected Articles

1. Pangenomic analyses of rose uncover widespread structure variation and empower genomics-directed breeding.

75.5Level VCohort
Nature genetics · 2026PMID: 41992043

By assembling 23 rose accessions (51 haplotypes), this study builds a rose pangenome cataloging 1,801,537 structural variants and identifies a CCD4 homolog as a central regulator of petal discoloration. Cross-accession introgression and subgenome analyses reveal hybrid origins, offering actionable targets and resources to accelerate trait-driven breeding relevant to cosmetics and ornamentals.

Impact: This is a comprehensive, high-quality pangenome that uncovers structural variation and key regulators of traits central to cosmetic applications (e.g., color stability), enabling genomics-guided breeding.

Clinical Implications: While non-clinical, the findings inform development of stable, desirable pigments and fragrances for dermocosmetic products and may reduce reliance on synthetic additives.

Key Findings

  • Assembled 23 rose accessions (51 haplotypes) capturing high subgenus diversity.
  • Identified 1,801,537 structural variants across the rose pangenome.
  • CCD4 homolog discovered as the principal regulator of petal discoloration.
  • Evidence of extensive introgression supports crossbreeding potential.
  • Subgenome analyses of Rosa gallica and Rosa hybrida 'La France' revealed hybrid origins.

Methodological Strengths

  • Comprehensive pangenome assembly across diverse accessions enabling structural variant discovery.
  • Integration of introgression and subgenome analyses linking genomic variation to key traits.

Limitations

  • Functional validation of candidate regulators beyond CCD4 is limited.
  • Translation to field performance and consumer product stability requires additional testing.

Future Directions: Functional genomics (e.g., CRISPR validation) of trait-associated SVs and network regulators; integration with metabolomics to link genotype to pigment/scent phenotypes in breeding pipelines.

Roses are economically important ornamental plants, with widespread applications in the cut flowers, garden and cosmetics industries. The genomic evolution and diversity of the subgenus Rosa remain understudied, limiting exploitation of its diversity in breeding. Here we assembled genomes of 23 accessions, comprising 51 haplotypes that capture the subgenus's high genetic diversity. Extensive introgression across accessions from different sections highlights crossbreeding potential. Pangenome analysis revealed 1,801,537 structural variations, providing insights into the genetic basis and key regulators controlling key traits such as continuous flowering, petal number and discoloration. A key finding was the identification of a CCD4 homolog as the main regulator of petal discoloration. Additional subgenomic analysis of the allopolyploid Rosa gallica and the triploid Rosa hybrida 'La France', two important breeding materials of modern roses, revealed their hybrid origins. Overall, this study advances understanding of rose genomics and provides valuable resources for future breeding and trait improvement.

2. Primary Linear Closure With Negative Pressure Wound Therapy Versus Pursestring Approximation After Ileostomy Reversal: A Randomized Noninferiority Trial.

74Level IRCT
Diseases of the colon and rectum · 2026PMID: 41995041

In a multi-institutional noninferiority RCT (n=112), primary linear closure with negative-pressure wound therapy achieved SSI rates comparable to purse-string closure (7% vs 2%) while markedly accelerating early healing (77% vs 23.5% at 2 weeks), with all wounds healed by 6 weeks. The approach was safe and reported as cosmetically acceptable.

Impact: Provides randomized evidence to support a more convenient closure strategy that maintains infection control while improving early healing and cosmetic acceptability after ileostomy reversal.

Clinical Implications: Primary linear closure with NPWT can be considered a standard alternative to purse-string closure after ileostomy reversal to accelerate healing without increasing SSI, potentially improving patient experience and outpatient care demands.

Key Findings

  • SSI rates: 7% (primary closure + NPWT) vs 2% (purse-string); met noninferiority with a 16% margin.
  • Early healing at 2 weeks: 77% vs 23.5% (p<0.001, GEE analysis); all wounds healed by 6 weeks.
  • No NPWT device malfunctions reported; study spanned two institutions.
  • Cosmetic acceptability noted; POSAS used to assess scar appearance as a secondary outcome.

Methodological Strengths

  • Prospective multi-institutional randomized noninferiority design with prespecified margin.
  • Use of validated outcomes and appropriate longitudinal analysis (GEE); clear healing endpoints.

Limitations

  • Non-blinded design may introduce performance and detection bias.
  • Conducted at only two institutions with modest sample size.

Future Directions: Blinded or pragmatic multicenter trials with larger samples and cost-effectiveness and patient-reported outcome measures to solidify adoption and assess long-term scar quality.

BACKGROUND: The optimal method of wound closure after ileostomy reversal remains uncertain. Pursestring approximation reduces surgical site infections but requires prolonged wound care. Combining negative pressure wound therapy with primary linear closure may offer a more convenient approach while maintaining acceptable infection rates. OBJECTIVE: To determine whether primary linear closure with negative pressure wound therapy is noninferior to pursestring approximation in preventing surgical site infection after ileostomy reversal. DESIGN: Prospective, non-blinded, multi-institutional, non-inferiority randomized controlled trial. SETTINGS: Community tertiary hospital and academic medical center. PATIENTS: Adults undergoing elective ileostomy reversal between October 2018 and March 2024. INTERVENTION: Participants were randomized to undergo either primary linear closure with negative pressure wound therapy or pursestring approximation for skin closure after ileostomy reversal. MAIN OUTCOME MEASURES: The primary outcome was the occurrence of surgical site infection, with a non-inferiority margin set at 16%. Secondary outcomes included time to wound healing and scar appearance using the validated Patient and Observer Scar Assessment Scale. RESULTS: One hundred twelve patients completed the study, with 61 in the negative pressure wound therapy arm and 51 in the pursestring approximation arm. Primary linear closure- negative pressure wound therapy was noninferior to pursestring approximation arm in terms of SSI: 7% and 2% respectively with an absolute risk difference of 5% (95% CI: 2.5% to 12.5%). Early wound healing at 2 weeks was achieved in 77% vs 23.5% of patients, respectively (p < 0.001, GEE analysis). All wounds healed by 6 weeks in both groups. No negative pressure wound therapy device malfunctions occurred. LIMITATIONS: Nonblinded study limited to 2 institutions. CONCLUSIONS: Ileostomy reversal by Primary linear closure- negative pressure wound therapy is noninferior to pursestring approximation in terms of the occurrence of surgical site infections while achieving significantly faster wound healing. The method is safe, convenient and cosmetically acceptable. (See Video Abstract)Trial Registration: Advocate Aurora Health IRB, IRB# 22.034 (7082).

3. Stakeholder input towards further refinement and consolidation of the alternative safety profiling algorithm (ASPA) for next generation risk assessment (NGRA).

63Level VSystematic Review
ALTEX · 2026PMID: 41992918

A stakeholder workshop refined ASPA—a modular, technology-neutral NGRA workflow integrating hazard tiers, PBK modeling, and tiered exposure with explicit uncertainty and cross-pillar feedback. The report delivers algorithmic redesign plans, detailed guidance per building block, and a case study (developmental neurotoxicity of desnitro-imidacloprid), advancing regulatory readiness for animal-free safety assessment.

Impact: Methodological consolidation of NGRA directly addresses regulatory needs in cosmetics by enabling transparent, defensible safety decisions without animal testing.

Clinical Implications: Although non-clinical, ASPA can improve consumer safety and product development in cosmetics by standardizing evidence integration and uncertainty handling in animal-free assessments.

Key Findings

  • ASPA workflow endorsed as modular and technology-neutral, focusing on process standardization.
  • Hazard pillar refined with sensitive Tier 1 and mechanistic Tier 2 capable of deriving PoDs.
  • ADME pillar supports PBK modeling progressing from generic to complex using mechanistic data.
  • Tiered exposure modeling with realistic worst-case scenarios and explicit uncertainty.
  • Cross-pillar feedback loops and decision-point documentation emphasized; includes a case study on desnitro-imidacloprid developmental neurotoxicity.

Methodological Strengths

  • Cross-disciplinary stakeholder review ensuring practical, regulatory-aligned refinements.
  • Algorithmic workflow integrating hazard, PBK, and exposure with explicit uncertainty management.

Limitations

  • Workshop-based consensus lacks empirical benchmarking across multiple real-world regulatory cases.
  • Software/platform implementation and external validation are ongoing.

Future Directions: Prospective application to diverse cosmetic ingredients with quantitative performance metrics; harmonization with OECD guidance; open data exemplars for reproducibility.

Next-generation risk assessment (NGRA) aims to enable transparent, reproducible chemical safety assessments based on human-relevant, animal-free new approach methodologies (NAMs). The Alternative Safety Profiling Algorithm (ASPA) was developed within the ASPIS cluster to provide an algorithmic workflow that structures problem formulation, evidence integration, and decision-making across three main pillars-hazard, ADME (toxicokinetics), and exposure. To refine ASPA, a stakeholder workshop was organized. Four breakout groups systematically reviewed corresponding workflow sections, identifying strengths, conceptual gaps, and opportunities for harmonization. Across groups, participants endorsed ASPA's modular, technology-neutral nature and its focus on standardizing processes rather than prescribing specific test batteries. The hazard pillar discussions emphasized a sensitive, hypothesis-generating Tier 1, complemented by a specific, mechanistic Tier 2, capable of deriving points of departure (PoDs). ADME experts supported a physiology-based kinetic (PBK) modelling strategy, advancing from generic towards more complex models, using mechanistic information and experimental data. The exposure group proposed refinements for transparent, tiered exposure modelling, with emphasis on realistic worst-case scenarios and explicit uncertainty communication. Cross-pillar discussions highlighted the importance of feedback loops between all pillars, and the documentation of decision points to achieve consistency and defensibility. The workshop outcomes informed three parallel developments: (i) algorithmic refinement and re-design toward the next ASPA version, (ii) the creation of detailed guidance for each building block, and (iii) the establishment of practical case studies to demonstrate workflow implementation. This report already contains a first case study (developmental neurotoxicity assessment of desnitro-imidacloprid). These advances increase the operability, transparency, and regulatory readiness of ASPA. Next-generation risk assessment (NGRA) aims to make chemical safety testing more human-relevant without using animals. The Alternative Safety Profiling Algorithm (ASPA) offers a structured way to combine all required data. These include information on chemical hazards, predictions on how chemicals move through the body (ADME), and estimates of exposure levels. A stakeholder workshop reviewed and improved the ASPA workflow and the associated software platform. Participants stressed the importance of the tool to make NGRA transparent and reproducible between different groups of evaluators. They suggested refinements for each part, such as clearer exposure estimates that include uncertainty. They also stressed the need for feedback between the different main modules of ASPA. An example of an ASPA evaluation (desnitroimidacloprid) was prepared for illustration of all process steps.