数据日期 2026-10-29 · 生成时间 2026-10-29 06:03
研究问题
Human skin ages through two overlapping processes.
方法
FT-IR spectra were collected on a Thermo Scientific Nicolet iS5 spectrometer with an iD5 ATR accessory (Thermo Fisher Scientific, Waltham, MA, USA). pH was measured with a WTW pH meter (Xylem/WTW, Weilheim, Germany) and density with an Anton Paar DMA 38 digital density meter (Anton Paar, Graz, Austria).；HPLC Assay and Validation of Trans-] Trans-resveratrol was quantified by HPLC (Shimadzu SIL-20AC HT autosampler and pump) on an Inertsil ODS-3 column (GL Sciences Inc., Tokyo, Japan, 250 mm × 4.6 mm, 5 µm).；Test and reference solutions were prepared in ethanol (sonicated 10 min, cooled, made to volume) and filtered through 0.45 µm PTFE filters; calibration standards were prepared by dilution over the range 0.0075–0.25 mg/mL.；The 0.45 µm PTFE filters were selected for their low non-specific binding, and the first portion of each filtrate was discarded.
核心结论
HPLC Method Validation] A reversed phase HPLC method was developed for trans-resveratrol (Inertsil ODS-3 column; acetonitrile/0.2% formic acid gradient; 1.5 mL/min; 40 °C; detection at 306 nm) and validated according to ICH Q2 [34] for linearity, accuracy, precision, limit of detection (LOD), limit of quantitation (LOQ), robustness, and specificity.；Accuracy at 21, 50, and 100 µg/mL gave mean recoveries of 102.8–104.2%, within the accepted 90–110% range.；Repeatability at 10, 20, and 110 µg/mL and at 220 µg/mL gave coefficients of variation below 2%. ‖ 结论：Overall, it was shown that optimized trans-resveratrol-loaded ethosomes are an effective, stable nanocarrier for this antioxidant active, complementing the hydrophilic peptide system reported previously and supporting ethosomes as a versatile platform for anti-aging dermacosmetic ingredients.
局限
全文未设独立 limitations 节；结构上为非 RCT 设计，因果推断强度受限。
对本项目的价值
★★★☆☆ 线粒体端点既是机制解释层，也是最容易拿到体外 / 影像读数的中间层。
全文来源
PMC JATS 全文（正文 36,161 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：Ethosomal Nanocarriers for Trans-Resveratrol Delivery: Formulation, Physicochemical Characterization, Stability, and In Vitro Release Performance.
- 期刊与标识：Pharmaceutics · PMID 42942769 · DOI 10.3390/pharmaceutics18101237**
A 级证据分级：A 级（同行评议人体研究）
本文属人体研究证据，但需注意：观察性或小样本干预的结论不等于已证实临床获益；效应量与长期安全性仍需更大规模、更长随访的试验验证。
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