The examination of biophysical parameters of skin (transepidermal water loss, skin hydration and pH value) in different body regions of normal cats of both sexes

Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal ponies. Sixteen ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the auricle. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the lumbar region (9.71g/hm2), while the highest values were observed in the lip region (22.35 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (2.13 CU), and the highest for the lip region (41.81 CU). For skin pH, the lowest results were obtained in the lumbar region (6.93), and the highest in the lip region (7.96).

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The examination of biophysical skin parameters (transepidermal water loss, skin hydration and pH value) in different body regions in Polish ponies

Polish Journal of Veterinary Sciences ◽

10.2478/pjvs-2013-0105 ◽

2013 ◽

Vol 16 (4) ◽

pp. 741-747 ◽

Cited By ~ 5

Author(s):

M.P. Szczepanik ◽

P.M. Wilkołek ◽

M. Pluta ◽

Ł.R. Adamek ◽

M. Gołyński ◽

...

Keyword(s):

Water Loss ◽

Ph Value ◽

Neck Region ◽

Transepidermal Water Loss ◽

Skin Hydration ◽

Lumbar Region ◽

Body Regions ◽

Skin Ph

Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal polish ponies. Twelve ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the pinna. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the pinna (10.54 g/hm2), while the highest values were observed in the lip region (30.98 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (1.96 CU), and the highest for the lip region (48.28 CU). For skin pH, the lowest results were obtained in the pinna (7.03), and the highest in the lumbar region (8.05).

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Biophysical parameters of rats’ skin after the administration of methimazole

Bulletin of the Veterinary Institute in Pulawy ◽

10.2478/bvip-2014-0049 ◽

2014 ◽

Vol 58 (2) ◽

pp. 315-319 ◽

Cited By ~ 3

Author(s):

Marcin Gołyński ◽

Marcin Szczepanik ◽

Krzysztof Lutnicki ◽

Łukasz Adamek ◽

Magdalena Gołyńska ◽

...

Keyword(s):

Oral Administration ◽

Water Loss ◽

Wistar Rats ◽

Skin Barrier ◽

Transepidermal Water Loss ◽

Skin Hydration ◽

Barrier Dysfunction ◽

Early Assessment ◽

Biophysical Parameters ◽

Ph Measurements

Abstract The paper describes the influence of oral administration of methimazole on biophysical skin parameters. Wistar rats of different sex (220-260 g) were used in the experiment. Biophysical skin parameters, such as transepidermal water loss (TEWL), corneometry, and pH were examined at seven-day intervals. Significant changes in the parameters were observed on the 7th d of methimazole administration. The changes were observed in both sex but males appeared to be less sensitive in that respect. Changes in the parameters in the females showed rapid mechanisms, which normalised transepidermal water loss and skin hydration, as well as restored skin barrier functions. TEWL, skin hydration, and skin pH measurements allow an early assessment of skin barrier dysfunction after administration of this drug.

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In vivo research on cosmetics with a sunscreen and synergistic antioxidant care

Aesthetic Cosmetology and Medicine ◽

10.52336/acm.2021.10.5.05 ◽

2021 ◽

Vol 10 (5) ◽

pp. 243-252

Author(s):

Joanna Igielska-Kalwat ◽

◽

Ewa Kilian-Pięta ◽

Keyword(s):

Water Loss ◽

Ph Value ◽

Transepidermal Water Loss ◽

Synergistic Action ◽

Biophysical Parameters ◽

Cosmetic Formulations ◽

Active Substances

The article presents research confirming the synergistic action of cosmetics with sunscreens and antioxidants. The aim of the study was to assess the safety and rationalize the use and dosage of photoprotective cosmetics. Skin tolerance and the effectiveness of cosmetic formulations were confirmed and the key ingredients were selected to minimize the appearance of dermatoses. The level of hydration, elasticity, lubrication, transepidermal water loss and the pH value of skin of volunteers were measured. The conducted experiment confirmed the effectiveness of the tested active substances to improve the biophysical parameters of the skin.

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Collagen Hydrolysate Prepared from Chicken By-Product as a Functional Polymer in Cosmetic Formulation

Molecules ◽

10.3390/molecules26072021 ◽

2021 ◽

Vol 26 (7) ◽

pp. 2021

Author(s):

Aneta Prokopová ◽

Jana Pavlačková ◽

Pavel Mokrejš ◽

Robert Gál

Keyword(s):

Water Loss ◽

Transepidermal Water Loss ◽

Skin Hydration ◽

Skin Elasticity ◽

Cosmetic Products ◽

Collagen Hydrolysate ◽

Carbopol Gel ◽

Cosmetic Formulation ◽

The Right ◽

Positive Effect

Chicken stomachs can be processed into collagen hydrolysate usable in cosmetic products. The aim of the study was to verify the effects of a carbopol gel formulation enriched with 1.0% (w/w) chicken hydrolysate on the properties of the skin in the periorbital area after regular application twice a day for eight weeks in volunteers ageed 50 ± 9 years. Skin hydration, transepidermal water loss (TEWL), skin elasticity and skin relief were evaluated. Overall, skin hydration increased by 11.82% and 9.45%, TEWL decreased by 25.70% and 17.80% (always reported for the right and left area). Generally, there was an increase in skin elasticity, a decrease in skin roughness, as the resonance times decreased by 85%. The average reduction of wrinkles was 35.40% on the right and 41.20% on the left. For all results, it can be seen that the longer the cosmetic gel formulation is applied, the better the results. Due to the positive effect on the quality and functionality of the skin, it is possible to apply the cosmetic gel formulation in the periorbital area. The advantage of the product with chicken collagen hydrolysate is also the biocompatibility with the skin and the biodegradability of the formulation.

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