The Diurnal Variation of Water Vapour Loss From the Skin in Relation to Temperature

Spruit, D.

doi:10.1111/j.1365-2133.1971.tb14198.x

Cited by 19 publications

(16 citation statements)

References 3 publications

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“…Both of these studies reported at least one TEWL peak around 4:00 p.m. Furthermore, Spruit[28] found that TEWL on the forearm skin was higher in the afternoon than in the morning. He suggested that the diurnal variation in TEWL of the skin is a function of diurnal variation in skin surface temperature.…”

Section: Discussionmentioning

confidence: 99%

Daytime changes of skin biophysical characteristics: A study of hydration, transepidermal water loss, ph, sebum, elasticity, erythema, and color index on middle eastern skin

et al. 2016

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Background:The exposure of skin to ultraviolet radiation and temperature differs significantly during the day. It is reasonable that biophysical parameters of human skin have periodic daily fluctuation. The objective of this study was to study the fluctuations of various biophysical characteristics of Middle Eastern skin in standardized experimental conditions.Materials and Methods:Seven biophysical parameters of skin including stratum corneum hydration, transepidermal water loss, pH, sebum, elasticity, skin color, and erythema index were measured at three time points (8 a.m., 12 p.m. and 4 p.m.) on the forearm of 12 healthy participants (mean age of 28.4 years) without any ongoing skin disease using the CK MPA 580 device in standard temperature and humidity conditions.Results:A significant difference was observed between means of skin color index at 8 a.m. (175.42 ± 13.92) and 4 p.m. (164.44 ± 13.72, P = 0.025), between the pH at 8 a.m. (5.72 ± 0.48) and 4 p.m. (5.33 ± 0.55, P = 0.001) and pH at 12 p.m. (5.60 ± 0.48) and 4 p.m. (5.33 ± 0.55, P = 0.001). Other comparisons between the means of these parameters at different time points resulted in nonsignificant P values.Conclusion:There are daytime changes in skin color index and pH. Skin color index might be higher and cutaneous pH more basic in the early morning compared to later of the day.

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Section: Discussionmentioning

confidence: 99%

Daytime changes of skin biophysical characteristics: A study of hydration, transepidermal water loss, ph, sebum, elasticity, erythema, and color index on middle eastern skin

et al. 2016

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“…L'existence d'un rythme circadien de la PIE sur le visage et sur les avant-bras reste débattue [18,20,25,26,34]. Dans notre étude sur le cuir chevelu, il apparaît que le biorythme circadien de la PIE avait une ampleur importante, quoique inférieure à celle de l'excrétion instantanée du sébum.…”

Section: Discussionunclassified

“…La température cutanée, l'intensité de la sudation, le flux de sébum et le pH de la couche cornée sont eux aussi soumis à des fluctuations au cours du nycthémère [17][18][19][20][21][22][23][24][25][26]. Dans tous les cas, ces rythmes ne sont pas directement influencés par la lumière.…”

Section: Introductionunclassified

Chronophysiologie circadienne du cuir chevelu

Piérard‐Franchimont

Henry

Loussouarn

et al. 2007

Pathologie Biologie

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RésuméLes rythmes biologiques sont nombreux et ils sont également variés selon leurs périodicités et amplitudes. Des variations au cours du jour, et en particulier des rythmes circadiens ont été rapportés au niveau de la peau du visage et des avant-bras. Cependant, peu d'information existe au niveau des biorythmes quotidiens du cuir chevelu. Le but de l'étude était d'explorer la chronophysiologie du cuir chevelu. Nous rapportons des rythmes diurnes chez huit hommes caucasiens. Ils sont révélés par la méthode des plexogrammes par intervalles de quatre heures sur une période de cinq jours. Des biorythmes statistiquement significatifs furent retrouvés pour la couleur de la peau, son hydratation, sa fonction barrière, son pH et l'excrétion de sébum. Le début de l'après-midi était le moment d'accroissement maximum de la rougeur, de l'hydratation, du pH et du débit sébacé. Il correspondait aussi à la diminution maximale de la fonction barrière cutanée. L'amplitude de certains de ces biorythmes était si faible que leur pertinence clinique reste incertaine, même si le caractère statistique est significatif. Compte tenu de leur synchronisme apparent, il est probable qu'un oscillateur central exerce une influence prépondérante. Cependant, rares sont les individus qui expriment des biorythmes pour tous les paramètres physiologiques considérés. La réactivité périphérique joue donc également un rôle important pour définir les bons et les mauvais répondeurs au biorythme potentiel de chaque paramètre individuel. © 2007 Elsevier Masson SAS. Tous droits réservés. AbstractBiological rhythms are numerous and vary according to periodicity and amplitude. Variations over the course of a day, particularly circadian rhythms have been reported in the skin of the face and forearms. However, little information is available about daily biorhythms of the scalp. The aim of the present study was to explore the chronophysiology of the scalp. We report a series of diurnal rhythms in 8 Caucasian men using the plexogram method at 4-h intervals over a 5-day period. Statistically significant biorhythms were found for the colour, hydration, barrier function and pH of the skin, and for the sebum excretion as well. The early afternoon was the time of maximum increase in redness, hydration, pH and sebum output, combined with decreased skin barrier function. The amplitude of some of these biorhythms was so discrete that their clinical relevance remained uncertain even when they appeared statistically significant. In view of the apparent synchronization between them, it is likely that a central oscillator exerts a major influence. However, only rare subjects exhibited biorhythms for all the considered physiological parameters. Hence, peripheral reactivity and/or environmental synchronizers also play an important role to define the good and bad respondors to the potential biorhythms of each individual parameter.

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“…Spruit [19] found that transepidermal water loss on the forearm skin was higher in the afternoon than in the morning and Yosipovitch et al [6] found a circadian rhythm of transepidermal water loss with a peak in the late afternoon. In contrast, Reinberg et al [20] reported a circadian rhythm of transepidermal water loss on the forearm skin with a trough at 2 p.m. and a nocturnal peak.…”

Section: Discussionmentioning

confidence: 99%

Daily Variations in Skin Surface Properties Using Mixed Model Methodology

Latreille¹,

Guinot²,

Robert-Granié

et al. 2004

Skin Pharmacol Physiol

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In order to explore the variations over the course of a day in certain skin biophysical properties, a study was conducted on 8 female volunteers. An assessment of several skin biophysical properties was carried out on the face and the volar forearm every 4 h over a period of 48 h. The biophysical parameters were assessed on the face for sebum secretion, skin surface pH, skin colour, transepidermal water loss, capacitance and skin surface temperature. The same parameters were measured on the volar forearm (excepted for sebum secretion). A statistical analysis based on mixed effect models was conducted. Four models, with different covariance structures, were successively tested. The analysis allowed us to identify a structure that repeated itself over time in the same way over each 24-hour period for capacitance on the forearm and for sebum secretion, skin surface pH and skin colour (L* and a* parameters) on the face. Mixed effect methodology is a powerful tool to analyse longitudinal data involving correlations among repeated measurements made on the same subject.

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The Diurnal Variation of Water Vapour Loss From the Skin in Relation to Temperature

Cited by 19 publications

References 3 publications

Daytime changes of skin biophysical characteristics: A study of hydration, transepidermal water loss, ph, sebum, elasticity, erythema, and color index on middle eastern skin

Daytime changes of skin biophysical characteristics: A study of hydration, transepidermal water loss, ph, sebum, elasticity, erythema, and color index on middle eastern skin

Chronophysiologie circadienne du cuir chevelu

Daily Variations in Skin Surface Properties Using Mixed Model Methodology

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