Non-invasive monitoring and quantitative analysis of patch test reactions by reflectance spectrophotometry, laser Doppler flowmetry and transepidermal water loss

2008 ◽  
Author(s):  
Natalja Skrebova Eikje ◽  
Seiji Arase
Keyword(s):  
Quantitative Analysis ◽  
Patch Test ◽  
Laser Doppler Flowmetry ◽  
Water Loss ◽  
Transepidermal Water Loss ◽  
Invasive Monitoring ◽  
Reflectance Spectrophotometry ◽  
Doppler Flowmetry ◽  
Non Invasive ◽  
Test Reactions

The beneficial effect of Cannabis Sativa seed oil on the epidermis

2021 ◽  
Vol 01 ◽  
Author(s):  
Anna Olejnik ◽  
Aleksandra Galarda ◽  
Joanna Goscianska
Keyword(s):  
Water Loss ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Cannabis Sativa ◽  
Transepidermal Water Loss ◽  
Skin Condition ◽  
Moisture Loss ◽  
Non Invasive ◽  
Oil Formulation

Background: Cannabis Sativa seed oil has become more and more popular in cosmetic industry mainly due to the high content of antioxidants and unsaturated fatty acids that are desirable in formulations because they prevent moisture loss and reduce the occurrence of dry skin. Objective: The aim of this study was to determine the effect of Cannabis Sativa seed oil on skin parameters such as hydration and transepidermal water loss. Methods: The in vivo tests on volunteers with combination skin were performed by using non-invasive methods by using corneometer and tewameter. Results: The obtained results proved that Cannabis Sativa seed oil improved skin condition. The transepidermal water loss decreased because the lipophilic components of the oil formulation tend to form an occlusive layer on the epidermis surface. The highest increase in skin hydration was observed after one week of treatment. Conclusion: These results confirmed that Cannabis Sativa seed oil has strong moisturizing properties and can be recommended as a natural based skin conditioning agent.

Predicting Visual Assessment of Allergic Patch Test Reactions by Non-Invasive Measurements

2000 ◽  
Vol 13 (1) ◽  
pp. 39-51 ◽  
Author(s):  
V. Zuang ◽  
G. Archer ◽  
C. Rona ◽  
M. Vignini ◽  
M. Mosca ◽  
...  
Keyword(s):  
Patch Test ◽  
Visual Assessment ◽  
Non Invasive ◽  
Test Reactions

Evaluation of angiogenesis in chronic inflammation by laser-Doppler flowmetry

1988 ◽  
Vol 74 (2) ◽  
pp. 119-121 ◽  
Author(s):  
C. Orlandi ◽  
C. J. Dunn ◽  
L. G. Cutshaw
Keyword(s):  
Blood Flow ◽  
Chronic Inflammation ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Angiogenic Response ◽  
Non Invasive ◽  
Granulomatous Lesions ◽  
Invasive Method ◽  
Control Skin

1. A non-invasive method is described for the assessment of angiogenesis in chronic inflammation using laser-Doppler flowmetry. 2. Significant increases in capillary blood flow were seen on days 5 and 7 after induction of subcutaneous granulomatous lesions, as compared with control skin. 3. Changes in blood flow were accompanied by changes in pulsatile flow pattern and by an intense angiogenic response observed by light microscopy. 4. The potential application of laser-Doppler flowmetry to quantitative and qualitative studies of evolving angiogenesis in pathological responses is discussed.

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