Using Wavelet Analysis of Blood Flow Oscillations to Investigate Differences in Skin Blood Flow Regulations Between the Upper and Lower Limbs.

IF 2 4区 医学 Q3 DERMATOLOGY Skin Research and Technology Pub Date : 2024-10-01 DOI:10.1111/srt.70089
Jiaqi Guo, Songmei Lin, Isabella Yu-Ju Hung, Cheng-Feng Lin, Pu-Chun Mo, Pu Sun, Yih-Kuen Jan
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Abstract

Background: The objective of this study was to investigate the differences in skin blood flow regulations between the upper and lower limbs in healthy adults using wavelet analysis of skin blood oscillations. To the best of our knowledge, this is the first study investigating the dominant skin blood flow control of the upper and lower limbs in healthy adults.

Methods: Skin blood flow of the forearm and leg was simultaneously measured by laser Doppler flowmetry (LDF) in 17 healthy adults. Skin blood flow oscillations were analyzed using wavelet analysis to assess the dominant control among the metabolic endothelial (0.0095-0.02 Hz), neurogenic (0.02-0.05 Hz), myogenic (0.05-0.15 Hz), respiratory (0.15-0.4 Hz), and cardiac (0.4-2 Hz) origins.

Results: Skin blood flow in the leg (11.13 ± 4.90 perfusion unit) was significantly higher than in the forearm (6.90 ± 2.50 perfusion unit, p < 0.001). The metabolic endothelial control is more dominant in the forearm (1.19 ±0.51 au) compared to the leg (0.73 ± 0.41 au, p < 0.01). The myogenic control is more dominant in the leg (1.18 ± 0.28 au) compared to the forearm (0.96±0.18 au, p < 0.05).

Conclusion: Through wavelet analysis of skin blood flow oscillations, the results indicate that metabolic endothelial control is more dominant in the forearm (upper limbs) and myogenic control is more dominant in the leg (lower limbs).

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利用血流振荡小波分析研究上下肢皮肤血流调节的差异
研究背景本研究的目的是利用皮肤血液振荡的小波分析,研究健康成年人上肢和下肢皮肤血流调节的差异。据我们所知,这是首次研究健康成年人上肢和下肢皮肤血流控制的主导性:方法:用激光多普勒血流测量仪(LDF)同时测量了 17 名健康成年人前臂和腿部的皮肤血流。采用小波分析法对皮肤血流振荡进行分析,以评估代谢内皮(0.0095-0.02 Hz)、神经源(0.02-0.05 Hz)、肌源(0.05-0.15 Hz)、呼吸源(0.15-0.4 Hz)和心脏源(0.4-2 Hz)之间的主导控制:结果:腿部皮肤血流量(11.13 ± 4.90 灌注单位)明显高于前臂(6.90 ± 2.50 灌注单位,P < 0.001)。与腿部(0.73 ± 0.41 au,p < 0.01)相比,前臂(1.19 ± 0.51 au)的代谢内皮控制更占优势。与前臂(0.96±0.18 au,P<0.05)相比,腿部(1.18±0.28 au)的肌源控制更占优势:通过对皮肤血流振荡的小波分析,结果表明代谢内皮控制在前臂(上肢)更占优势,而肌源性控制在腿部(下肢)更占优势。
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来源期刊
Skin Research and Technology
Skin Research and Technology 医学-皮肤病学
CiteScore
3.30
自引率
9.10%
发文量
95
审稿时长
6-12 weeks
期刊介绍: Skin Research and Technology is a clinically-oriented journal on biophysical methods and imaging techniques and how they are used in dermatology, cosmetology and plastic surgery for noninvasive quantification of skin structure and functions. Papers are invited on the development and validation of methods and their application in the characterization of diseased, abnormal and normal skin. Topics include blood flow, colorimetry, thermography, evaporimetry, epidermal humidity, desquamation, profilometry, skin mechanics, epiluminiscence microscopy, high-frequency ultrasonography, confocal microscopy, digital imaging, image analysis and computerized evaluation and magnetic resonance. Noninvasive biochemical methods (such as lipids, keratin and tissue water) and the instrumental evaluation of cytological and histological samples are also covered. The journal has a wide scope and aims to link scientists, clinical researchers and technicians through original articles, communications, editorials and commentaries, letters, reviews, announcements and news. Contributions should be clear, experimentally sound and novel.
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